* {
  box-sizing: border-box;
}:root {
  --font-brand: "Press Start 2P", monospace;
  --font-ui: "Handjet", Arial, sans-serif;
  --font-body: "Anaheim", Arial, Helvetica, sans-serif;
}html:has(body.piano-app-page[data-page="piano"][data-theme="dark"]) {
  background: #03040d;
  scrollbar-color: #a73dff #050111;
}body.piano-app-page[data-page="piano"][data-theme="dark"] {
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}body.piano-app-page[data-page="piano"][data-theme="dark"]::-webkit-scrollbar {
  width: 0.75rem;
  height: 0.75rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"]::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}body.piano-app-page[data-page="piano"][data-theme="dark"]::-webkit-scrollbar-thumb {
  border: 2px solid var(--scrollbar-thumb-border);
  border-radius: 999px;
  background: var(--scrollbar-thumb);
}body.piano-app-page[data-page="piano"][data-theme="dark"]::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}body {
  margin: 0;
  padding-top: 80px;
  font-family: var(--font-body);
  line-height: 1.5;
}body.piano-app-page[data-page="piano"][data-theme="dark"] {
  color: var(--text);
  background: var(--bg);
}body.menu-open {
  overflow: hidden;
}.home-page {
  display: grid;
  min-height: 100vh;
  padding: 0;
  place-items: center;
}.home-main {
  display: grid;
  gap: 2rem;
  width: min(760px, 92vw);
  margin: 0 auto;
  text-align: center;
}.instrument-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}.instrument-menu a {
  min-width: 10rem;
  padding: 0.85rem 1.1rem;
  border-width: 1px;
  border-style: solid;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1.15rem;
  text-align: center;
  text-decoration: none;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu a {
  border-color: #fff;
  color: var(--text);
}.instrument-menu a:hover,
.instrument-menu a:focus-visible {
  outline: 0;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu a:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu a:focus-visible {
  border-color: var(--highlight);
  background: var(--highlight);
  color: #000;
}.instrument-menu a[aria-disabled="true"] {
  cursor: default;
}.menu-toggle {
  display: none;
}.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
  width: 18rem;
  padding: 1.4rem 1rem;
  overflow-y: auto;
  border-right-width: 1px;
  border-right-style: solid;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .sidebar {
  border-right-color: #fff;
  background: #050505;
}.sidebar h2 {
  margin: 0 0 1rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .sidebar h2 {
  color: var(--highlight);
}.sidebar .menu-list + h2 {
  margin-top: 1.2rem;
}.menu-list,
.menu-list ol {
  margin: 0;
  padding: 0;
  list-style: none;
}.menu-list {
  display: grid;
  gap: 0.2rem;
}.menu-list ol {
  margin: 0.2rem 0 0.35rem 0.9rem;
  border-left-width: 1px;
  border-left-style: solid;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-list ol {
  border-left-color: #444;
}.menu-list a {
  display: block;
  padding: 0.32rem 0.45rem;
  border-radius: 6px;
  text-decoration: none;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-list a {
  color: var(--text);
}.menu-list ol a {
  font-size: 0.92rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-list ol a {
  color: var(--muted);
}.menu-list a:hover,
.menu-list a:focus-visible {
  outline: 0;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-list a:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-list a:focus-visible {
  background: var(--highlight);
  color: #000;
}.menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 15;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-backdrop {
  background: rgba(0, 0, 0, 0.64);
}body.piano-app-page[data-page="piano"] .site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 25;
  display: flex;
  align-items: center;
  height: 80px;
  padding: 0 1.5rem 0 5rem;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header {
  border-bottom: 1px solid #fff;
  background: #000;}body.piano-app-page[data-page="piano"] .site-header a {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  text-decoration: none;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header a {
  color: var(--text);}body.piano-app-page[data-page="piano"] .site-header a:hover,
body.piano-app-page[data-page="piano"] .site-header a:focus-visible {
  outline: 0;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header a:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header a:focus-visible {
  color: #fff;}header,
main,
footer {
  width: min(1000px, 92vw);
  margin: 0 auto;
}@media (min-width: 1100px) {body.piano-app-page[data-page="piano"] .site-header {
    padding-left: calc(18rem + 1.5rem);}header,
  main,
  footer {
    margin-left: calc(18rem + ((100vw - 18rem - min(1000px, 84vw)) / 2));
    margin-right: auto;
    width: min(1000px, 84vw);
  }.home-main {
    width: min(760px, 92vw);
    margin: 0 auto;
  }
}header {
  text-align: center;
  padding: 3rem 0 1.5rem;
}h2,
h3 {
  font-family: var(--font-body);
  font-weight: 400;
}h1 {
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  line-height: 0.95;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .subtitle {
  color: var(--muted);
}.formula-line,
.helper-text {
  margin: 0.5rem 0 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .formula-line,
body.piano-app-page[data-page="piano"][data-theme="dark"] .helper-text {
  color: var(--highlight);
}body.piano-app-page[data-page="piano"][data-theme="dark"] .helper-text {
  color: var(--muted);
}body.piano-app-page[data-page="piano"] .notation-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0 auto;
  padding: 0;
  border: 0;
  background: transparent;}body.piano-app-page[data-page="piano"] .notation-toggle button {
  display: grid;
  place-items: center;
  width: 2.4rem;
  min-width: 2.4rem;
  height: 2.4rem;
  min-height: 2.4rem;
  padding: 0;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 1.25rem;
  line-height: 1;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button {
  border: 1px solid #fff;
  color: var(--text);}body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button[aria-pressed="true"] {
  background: var(--highlight);
  color: #000;}body.piano-app-page[data-page="piano"] .notation-toggle button:focus-visible {
  outline-offset: 2px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:focus-visible {
  outline: 2px solid #fff;}.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  text-decoration: none;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .back-link {
  color: var(--highlight);
}.back-link:hover,
.back-link:focus-visible {
  text-decoration: underline;
  outline: 0;
}section {
  margin-bottom: 2rem;
}h2 {
  margin-bottom: 0.75rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] h2 {
  color: var(--accent);
}.root-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1rem;
}.root-menu-centered {
  justify-content: center;
  margin: 1rem auto 1.35rem;
}.root-menu a {
  min-width: 3.25rem;
  padding: 0.45rem 0.7rem;
  border-width: 1px;
  border-style: solid;
  border-radius: 6px;
  text-align: center;
  text-decoration: none;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu a {
  border-color: #fff;
  color: var(--text);
}.root-menu button {
  min-width: 3.25rem;
  padding: 0.45rem 0.7rem;
  border-width: 1px;
  border-style: solid;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
  text-align: center;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button {
  border-color: #fff;
  background: transparent;
  color: var(--text);
}.root-menu a:hover,
.root-menu a:focus-visible,
.root-menu button:hover,
.root-menu button:focus-visible,
.root-menu button[aria-pressed="true"] {
  outline: 0;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu a:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu a:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button[aria-pressed="true"] {
  border-color: var(--highlight);
  background: var(--highlight);
  color: #000;
}.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
}.card {
  border-width: 1px;
  border-style: solid;
  border-radius: 8px;
  padding: 1rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .card {
  background: var(--panel);
  border-color: #fff;
}.card-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.7rem;
}body.piano-app-page[data-page="piano"] .play-button,
body.piano-app-page[data-page="piano"] .repeat-button {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button {
  border: 1px solid #fff;
  background: #fff;
  color: #000;}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:focus-visible {
  background: var(--highlight);
  border-color: var(--highlight);}body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button.is-looping {
  background: var(--play-highlight);
  border-color: var(--play-highlight);}body.piano-app-page[data-page="piano"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"] .repeat-button:focus-visible {
  outline-offset: 3px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:focus-visible {
  outline: 2px solid #fff;}body.piano-app-page[data-page="piano"] .play-icon {
  width: 0;
  height: 0;
  margin-left: 0.18rem;
  border-top: 0.42rem solid transparent;
  border-bottom: 0.42rem solid transparent;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .play-icon {
  border-left: 0.66rem solid #000;}body.piano-app-page[data-page="piano"] .repeat-icon {
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-icon {
  color: #000;}body.piano-app-page[data-page="piano"] .repeat-icon::before {
  content: "\21bb";}.card h3 {
  margin: 0;
}.card p {
  margin: 0;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .card p {
  color: var(--muted);
}.dynamic-card {
  max-width: 38rem;
  margin: 0 auto;
}.scale-line {
  margin: 0.85rem 0 0;
  text-align: center;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .scale-line {
  color: var(--muted);
}.key-chords {
  margin-top: 2.5rem;
}.key-summary {
  text-align: center;
}.progression-columns {
  display: grid;
  gap: 1rem;
}.progression-chords {
  margin-bottom: 0.25rem;
}body.piano-app-page[data-page="piano"] .keyboard {
  margin-bottom: 0.85rem;}body.piano-app-page[data-page="piano"] .piano-svg {
  display: block;
  width: 100%;
  height: auto;}body.piano-app-page[data-page="piano"] .white-key {
  stroke-width: 1.4;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .white-key {
  fill: #fff;
  stroke: #000;}body.piano-app-page[data-page="piano"] .black-key {
  stroke-width: 0.6;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .black-key {
  fill: #050505;
  stroke: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.white-key {
  fill: var(--highlight);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.black-key {
  fill: var(--highlight);
  stroke: #000;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg.is-playing .key-active.white-key,
body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg.is-playing .key-active.black-key {
  fill: var(--play-highlight);}body.piano-app-page[data-page="piano"] .key-label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  text-anchor: middle;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .key-label {
  fill: #000;}body.piano-app-page[data-page="piano"] .black-label {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  text-anchor: middle;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .black-label {
  fill: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active + .black-label {
  fill: #000;}.progressions {
  margin-top: 1rem;
  padding: 1rem;
  border-width: 1px;
  border-style: solid;
  border-radius: 8px;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions {
  border-color: #fff;
  background: var(--panel);
}.progressions h3 {
  margin: 0 0 0.75rem;
}.progressions ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}.progressions ol > li {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  min-height: 5rem;
  padding: 0.85rem 3.15rem 0.85rem 0.85rem;
  border-width: 1px;
  border-style: solid;
  border-radius: 8px;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions ol > li {
  border-color: #fff;
}.progressions ol > li > div {
  flex: 1;
  min-width: 0;
}.progression-play,
.progression-repeat {
  width: 2rem;
  height: 2rem;
}body.piano-app-page[data-page="piano"] .progression-play .play-icon {
  border-top-width: 0.36rem;
  border-bottom-width: 0.36rem;
  border-left-width: 0.58rem;}body.piano-app-page[data-page="piano"] .progression-repeat .repeat-icon {
  font-size: 1rem;}.progressions span {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 700;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions span {
  color: var(--highlight);
}.progression-animation {
  margin: 0.6rem 0 0;
  width: min(18rem, 100%);
}.progression-step {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
  padding: 0.35rem;
  border-width: 1px;
  border-style: solid;
  border-radius: 6px;
  text-align: center;
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-step {
  border-color: #fff;
  color: var(--muted);
}body.piano-app-page[data-page="piano"] .progression-keyboard .piano-svg {
  width: 100%;}body.piano-app-page[data-page="piano"] .progression-keyboard .white-key {
  stroke-width: 1.8;}body.piano-app-page[data-page="piano"] .progression-keyboard .key-label {
  font-size: 12px;}body.piano-app-page[data-page="piano"] .progression-keyboard .black-label {
  font-size: 10px;}.progression-animation.is-active .progression-step {
  transform: translateY(-2px);
}body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-animation.is-active .progression-step {
  border-color: var(--play-highlight);
  box-shadow: 0 0 0 2px rgba(250, 128, 69, 0.28);
  color: var(--play-highlight);
}@media (max-width: 700px) {.progression-columns,
  .progressions ol {
    grid-template-columns: 1fr;
  }
}@media (max-width: 1099px) {.menu-toggle {
    position: fixed;
    top: 1.1rem;
    left: 1rem;
    z-index: 30;
    display: grid;
    place-items: center;
    width: 2.75rem;
    height: 2.75rem;
    border-width: 1px;
    border-style: solid;
    border-radius: 50%;
    cursor: pointer;
  }body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-toggle {
    border-color: #fff;
    background: #000;
  }.menu-toggle span {
    display: block;
    width: 1.15rem;
    height: 2px;
    margin: 2px 0;
  }body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-toggle span {
    background: #fff;
  }.menu-toggle:hover,
  .menu-toggle:focus-visible {
    outline: 0;
  }body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-toggle:hover,
  body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-toggle:focus-visible {
    border-color: var(--highlight);
  }body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-toggle:hover span,
  body.piano-app-page[data-page="piano"][data-theme="dark"] .menu-toggle:focus-visible span {
    background: var(--highlight);
  }.sidebar {
    width: min(19rem, 84vw);
    transform: translateX(-100%);
    transition: transform 180ms ease;
  }body.menu-open .sidebar {
    transform: translateX(0);
  }header {
    padding-top: 5rem;
  }
}.tips {
  border-width: 1px;
  border-style: solid;
  border-radius: 8px;
  padding: 1rem 1.25rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .tips {
  background: var(--panel);
  border-color: #fff;
}.tips ul {
  margin: 0.5rem 0 0;
}footer {
  text-align: center;
  padding: 1.2rem 0 2rem;
  font-size: 0.95rem;
}body.piano-app-page[data-page="piano"][data-theme="dark"] footer {
  color: var(--muted);
}.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}body.piano-app-page[data-page="piano"] {
  padding: 1rem;}body.piano-app-page[data-page="piano"] .app-shell {
  display: grid;
  gap: 1rem;
  width: min(1180px, 100%);
  margin: 0 auto;}body.piano-app-page[data-page="piano"] .site-header {
  position: static;
  inset: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: space-between;
  min-height: auto;
  height: auto;
  padding: 1rem 1.25rem;
  border-radius: 8px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header {
  border: 1px solid #fff;
  background: var(--panel);}body.piano-app-page[data-page="piano"] .site-brand {
  font-weight: 700;}body.piano-app-page[data-page="piano"] .site-section {
  padding-left: 0.85rem;
  font-family: var(--font-body);}

body.piano-app-page[data-page="piano"][data-theme="dark"] .site-section {
  border-left: 1px solid #fff;
  color: var(--muted);}body.piano-app-page[data-page="piano"] .site-actions,
body.piano-app-page[data-page="piano"] .card-actions,
body.piano-app-page[data-page="piano"] .piano-card-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-icon-button,
body.piano-app-page[data-page="piano"] .card-actions button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .related-chords-card button {
  min-height: 2.4rem;
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font: inherit;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button {
  border: 1px solid #fff;
  color: var(--text);}body.piano-app-page[data-page="piano"] .header-select {
  min-width: 8.5rem;
  appearance: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select option {
  background: #fff;
  color: #000;}body.piano-app-page[data-page="piano"] .header-icon-button,
body.piano-app-page[data-page="piano"] .notation-toggle button {
  width: 2.4rem;
  padding: 0;
  font-size: 1.25rem;
  line-height: 1;}body.piano-app-page[data-page="piano"] header,
body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] footer {
  width: 100%;
  margin: 0;}body.piano-app-page[data-page="piano"] main {
  display: grid;
  gap: 1rem;}body.piano-app-page[data-page="piano"] .hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.6fr);
  gap: 1rem;
  align-items: stretch;
  min-height: 15rem;
  padding: 2rem;
  border-radius: 8px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section {
  border: 1px solid #fff;
  background: var(--panel);}body.piano-app-page[data-page="piano"] .hero-copy {
  align-self: center;}body.piano-app-page[data-page="piano"] .section-kicker,
body.piano-app-page[data-page="piano"] .selector-label,
body.piano-app-page[data-page="piano"] .stat-label,
body.piano-app-page[data-page="piano"] .keyboard-legend {
  margin: 0 0 0.35rem;
  font-family: var(--font-body);
  font-size: 0.95rem;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .section-kicker,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .stat-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--highlight);}body.piano-app-page[data-page="piano"] .hero-section h1 {
  font-size: clamp(3rem, 7vw, 5.4rem);}body.piano-app-page[data-page="piano"] .hero-visual-slot,
body.piano-app-page[data-page="piano"] .future-illustration-slot {
  min-height: 100%;
  border-radius: 8px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-visual-slot,
body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot {
  border: 1px dashed #666;
  background: rgba(255, 255, 255, 0.03);}body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .instrument-switcher-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .chord-display {
  display: grid;
  gap: 1rem;}body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .instrument-switcher-panel,
body.piano-app-page[data-page="piano"] .selector-panel {
  padding: 1rem;
  border-radius: 8px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel {
  border: 1px solid #fff;
  background: var(--panel);}body.piano-app-page[data-page="piano"] .search-field {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field {
  border: 1px solid #fff;}body.piano-app-page[data-page="piano"] .search-field input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font: inherit;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field input {
  color: var(--text);}body.piano-app-page[data-page="piano"] .search-field input:focus {
  outline: 0;}body.piano-app-page[data-page="piano"] .keyboard-shortcut {
  flex: 0 0 auto;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.9rem;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-shortcut {
  border: 1px solid #777;
  color: var(--muted);}body.piano-app-page[data-page="piano"] .instrument-switcher {
  position: relative;
  width: fit-content;}body.piano-app-page[data-page="piano"] .instrument-switcher-button {
  min-height: 2.5rem;
  padding: 0.55rem 1rem;
  border-radius: 4px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button {
  border: 1px solid #ff7ac8;
  color: #160012;
  background: linear-gradient(180deg, #ff8fd4 0%, #ff4fb8 100%);}body.piano-app-page[data-page="piano"] .instrument-switcher-button:hover,
body.piano-app-page[data-page="piano"] .instrument-switcher-button:focus-visible {
  outline: 0;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button:focus-visible {
  border-color: #fff;
  background: #ffb0df;}body.piano-app-page[data-page="piano"] .instrument-menu-popover {
  position: absolute;
  top: calc(100% + 0.45rem);
  left: 0;
  z-index: 8;
  display: grid;
  min-width: 12rem;
  padding: 0.45rem;
  border-radius: 4px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover {
  border: 1px solid #ff7ac8;
  background: #080012;
  box-shadow: 0 1rem 2rem rgb(0 0 0 / 0.42);}body.piano-app-page[data-page="piano"] .instrument-menu-popover[hidden] {
  display: none;}body.piano-app-page[data-page="piano"] .instrument-menu-popover a,
body.piano-app-page[data-page="piano"] .instrument-menu-popover button {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 0;
  border-radius: 3px;
  background: transparent;
  font: inherit;
  text-align: left;
  text-decoration: none;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover a,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover button {
  color: var(--text);}body.piano-app-page[data-page="piano"] .instrument-menu-popover a:hover,
body.piano-app-page[data-page="piano"] .instrument-menu-popover a:focus-visible {
  outline: 0;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover a:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover a:focus-visible {
  color: #160012;
  background: #ff8fd4;}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover [aria-current="page"] {
  color: #ff8fd4;}body.piano-app-page[data-page="piano"] .instrument-menu-popover button:disabled {
  cursor: not-allowed;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover button:disabled {
  color: rgb(255 255 255 / 0.45);}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;}body.piano-app-page[data-page="piano"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"] .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"] .category-tabs button.is-active,
body.piano-app-page[data-page="piano"] .type-menu button:hover,
body.piano-app-page[data-page="piano"] .type-menu button:focus-visible,
body.piano-app-page[data-page="piano"] .type-menu button.is-active,
body.piano-app-page[data-page="piano"] .header-control:hover,
body.piano-app-page[data-page="piano"] .header-control:focus-visible,
body.piano-app-page[data-page="piano"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"] .card-actions button:hover,
body.piano-app-page[data-page="piano"] .card-actions button:focus-visible,
body.piano-app-page[data-page="piano"] .related-chords-card button:hover,
body.piano-app-page[data-page="piano"] .related-chords-card button:focus-visible {
  outline: 0;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:focus-visible {
  border-color: var(--highlight);
  background: var(--highlight);
  color: #000;}body.piano-app-page[data-page="piano"] .selector-panel h2 {
  margin: 0;}.selector-group {
  display: grid;
  gap: 0.4rem;
}body.piano-app-page[data-page="piano"] .root-selector .root-menu {
  justify-content: flex-start;
  margin: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .root-selector .root-menu button.is-active {
  border-color: var(--highlight);
  background: var(--highlight);
  color: #000;}body.piano-app-page[data-page="piano"] .chord-type-selector {
  margin-top: 0.25rem;}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 1rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .progression-summary-card,
body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .related-chords-card,
body.piano-app-page[data-page="piano"] .progressions-list-card {
  min-width: 0;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .progression-summary-card {
  display: grid;
  align-content: start;
  gap: 1rem;}body.piano-app-page[data-page="piano"] .chord-symbol {
  display: grid;
  place-items: center;
  width: 5.5rem;
  aspect-ratio: 1;
  border-radius: 8px;
  font-family: var(--font-brand);
  font-size: 3rem;
  line-height: 1;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-symbol {
  border: 1px solid #fff;
  color: var(--highlight);}body.piano-app-page[data-page="piano"] .chord-heading-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);}body.piano-app-page[data-page="piano"] .piano-card {
  display: grid;
  gap: 0.9rem;}body.piano-app-page[data-page="piano"] .piano-card-header {
  justify-content: flex-start;}body.piano-app-page[data-page="piano"] .piano-card-header > div {
  margin-left: auto;}body.piano-app-page[data-page="piano"] .piano-card .formula-line {
  margin: 0;}body.piano-app-page[data-page="piano"] .note-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;}body.piano-app-page[data-page="piano"] .note-line p,
body.piano-app-page[data-page="piano"] .keyboard-legend {
  margin: 0;}body.piano-app-page[data-page="piano"] .keyboard-legend {
  text-align: center;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--muted);}body.piano-app-page[data-page="piano"] .keyboard-legend-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0;}body.piano-app-page[data-page="piano"] .keyboard-legend-row .keyboard-legend {
  min-width: 0;}body.piano-app-page[data-page="piano"] .arpeggio-toggle {
  justify-self: end;
  padding: 0;
  border: 0;
  background: transparent;
  font: inherit;
  text-align: right;
  text-decoration: underline;
  text-underline-offset: 0.16em;
  cursor: pointer;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .arpeggio-toggle {
  color: #ff6fbd;}body.piano-app-page[data-page="piano"][data-theme="dark"] .arpeggio-toggle:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .arpeggio-toggle:focus-visible {
  color: #ff9bd1;}body.piano-app-page[data-page="piano"] .arpeggio-toggle:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 0.2rem;}body.piano-app-page[data-page="piano"] .chord-info-card {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
  min-height: 5rem;}body.piano-app-page[data-page="piano"] .related-chords-list {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;}body.piano-app-page[data-page="piano"] .related-chords-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li {
  border-bottom: 1px solid #333;}body.piano-app-page[data-page="piano"] .related-chords-list li:last-child {
  border-bottom: 0;}body.piano-app-page[data-page="piano"] .related-chords-list div,
body.piano-app-page[data-page="piano"] .related-chords-list span {
  display: block;}body.piano-app-page[data-page="piano"] .related-chords-list span + span {
  font-family: var(--font-body);}

body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list span + span {
  color: var(--muted);}body.piano-app-page[data-page="piano"] .related-toggle {
  width: 100%;
  margin-top: 0.85rem;}body.piano-app-page[data-page="piano"] footer {
  padding: 0 0 1rem;}@media (min-width: 1100px) {body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] header,
body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] footer {
    width: 100%;
    margin: 0;}
}@media (max-width: 820px) {body.piano-app-page[data-page="piano"] {
    padding: 0.75rem;}body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout,
body.piano-app-page[data-page="piano"] .chord-info-card {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .hero-visual-slot {
    min-height: 7rem;}
}@media (max-width: 540px) {body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .instrument-switcher-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .hero-section {
    padding: 0.85rem;}body.piano-app-page[data-page="piano"] .site-actions,
body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu {
    width: 100%;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
    flex: 1 1 auto;}body.piano-app-page[data-page="piano"] .chord-symbol {
    width: 4.5rem;
    font-size: 2.5rem;}
}body.piano-app-page[data-page="piano"] {
  position: relative;
  min-height: 100vh;
  padding: 1rem;
  overflow-x: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] {
  --pv-bg: #03040d;
  --pv-bg-deep: #00010a;
  --pv-panel: rgba(6, 10, 23, 0.92);
  --pv-panel-strong: rgba(10, 7, 27, 0.97);
  --pv-panel-soft: rgba(20, 14, 43, 0.72);
  --pv-border: #4c3677;
  --pv-border-bright: #a846ff;
  --pv-text: #f8f2ff;
  --pv-muted: #b9abc8;
  --pv-accent: #bb45ff;
  --pv-accent-2: #ff4ec7;
  --pv-accent-3: #36dcff;
  --pv-gold: #ffc766;
  --pv-focus: #72ecff;
  --pv-glow: rgba(173, 65, 255, 0.45);
  --pv-glow-strong: rgba(204, 73, 255, 0.72);
  --pv-button: rgba(12, 14, 30, 0.95);
  --pv-button-hover: rgba(54, 27, 91, 0.96);
  --pv-button-active: linear-gradient(180deg, #8a2dff 0%, #5712a9 100%);
  --pv-key-white: #f8f0ff;
  --pv-key-white-stroke: #22162e;
  --pv-key-black: #070713;
  --pv-key-active: #7c2eff;
  --pv-key-active-text: #ffffff;
  --bg: var(--pv-bg);
  --panel: var(--pv-panel);
  --text: var(--pv-text);
  --muted: var(--pv-muted);
  --accent: var(--pv-text);
  --highlight: var(--pv-accent);
  --play-highlight: var(--pv-accent-2);
  --scrollbar-track: #050111;
  --scrollbar-thumb: #a73dff;
  --scrollbar-thumb-hover: #c176ff;
  --scrollbar-thumb-border: #050111;
  color: var(--pv-text);
  background:
    radial-gradient(circle at 16% 10%, rgba(164, 52, 255, 0.2), transparent 22rem),
    radial-gradient(circle at 86% 18%, rgba(54, 220, 255, 0.14), transparent 24rem),
    radial-gradient(circle at 50% 100%, rgba(255, 78, 199, 0.14), transparent 28rem),
    linear-gradient(180deg, #050712 0%, #03040d 48%, #00010a 100%);}body.piano-app-page[data-page="piano"]::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;}body.piano-app-page[data-page="piano"]::before {
  background-position: 0 0, 28px 44px, 0 0, 0 0;
  background-size: 72px 72px, 118px 118px, 44px 44px, 44px 44px;}

body.piano-app-page[data-page="piano"][data-theme="dark"]::before {
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.86) 0 1px, transparent 1.4px),
    radial-gradient(circle, rgba(187, 69, 255, 0.52) 0 1px, transparent 1.6px),
    linear-gradient(rgba(99, 60, 153, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 60, 153, 0.08) 1px, transparent 1px);
  opacity: 0.45;}body.piano-app-page[data-page="piano"] .app-shell {
  position: relative;
  gap: 1rem;
  width: min(1200px, 100%);}body.piano-app-page[data-page="piano"] .app-shell::before {
  content: "";
  position: absolute;
  inset: -0.45rem;
  z-index: -1;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .app-shell::before {
  border: 1px solid rgba(168, 70, 255, 0.48);
  box-shadow: 0 0 32px rgba(92, 33, 165, 0.32);}body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .card {
  position: relative;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section,
body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card {
  border: 1px solid var(--pv-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 40%),
    var(--pv-panel);
  box-shadow:
    inset 0 0 0 1px rgba(229, 178, 255, 0.06),
    inset 0 -16px 30px rgba(0, 0, 0, 0.28),
    0 0 20px rgba(64, 26, 121, 0.26);}body.piano-app-page[data-page="piano"] .site-header::before,
body.piano-app-page[data-page="piano"] .hero-section::before,
body.piano-app-page[data-page="piano"] .search-panel::before,
body.piano-app-page[data-page="piano"] .selector-panel::before,
body.piano-app-page[data-page="piano"] .card::before {
  content: "";
  position: absolute;
  inset: 5px;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card::before {
  border: 1px solid rgba(168, 70, 255, 0.22);}body.piano-app-page[data-page="piano"] .site-header {
  align-items: center;
  padding: 0.85rem 1rem;
  overflow: hidden;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"] .site-header::after {
  content: "";
  position: absolute;
  inset: auto 1rem 0;
  height: 1px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header::after {
  background: linear-gradient(90deg, transparent, var(--pv-accent), var(--pv-accent-3), transparent);
  opacity: 0.8;}body.piano-app-page[data-page="piano"] .site-brand {
  font-family: var(--font-brand);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.05em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-brand {
  color: var(--pv-text);
  text-shadow: 0 0 12px rgba(248, 242, 255, 0.3);}body.piano-app-page[data-page="piano"] .site-section {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-section {
  border-left-color: var(--pv-accent);
  color: var(--pv-accent);
  text-shadow: 0 0 14px var(--pv-glow);}body.piano-app-page[data-page="piano"] .site-actions {
  margin-left: auto;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-icon-button,
body.piano-app-page[data-page="piano"] .card-actions button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .related-chords-card button,
body.piano-app-page[data-page="piano"] .root-menu button,
body.piano-app-page[data-page="piano"] .notation-toggle button {
  min-height: 2.45rem;
  border-radius: 3px;
  font-family: var(--font-ui);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, color 0.16s ease;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button {
  border-color: rgba(168, 70, 255, 0.58);
  background: var(--pv-button);
  color: var(--pv-text);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 0 1px rgba(0, 0, 0, 0.6);}body.piano-app-page[data-page="piano"] .header-select {
  padding-right: 2rem;}body.piano-app-page[data-page="piano"] .header-select {
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%;
  background-size: 0.34rem 0.34rem, 0.34rem 0.34rem;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--pv-text) 50%),
    linear-gradient(135deg, var(--pv-text) 50%, transparent 50%);}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select option {
  background: #0b0918;
  color: var(--pv-text);}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button {
  color: var(--pv-accent-2);
  text-shadow: 0 0 14px rgba(255, 78, 199, 0.65);}body.piano-app-page[data-page="piano"] .hero-section {
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 1.05fr);
  min-height: 17.5rem;
  padding: 2rem;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section {
  background:
    radial-gradient(circle at 78% 26%, rgba(255, 199, 102, 0.22), transparent 7rem),
    radial-gradient(circle at 68% 58%, rgba(124, 46, 255, 0.26), transparent 14rem),
    radial-gradient(circle at 16% 42%, rgba(255, 78, 199, 0.15), transparent 12rem),
    linear-gradient(110deg, rgba(5, 7, 18, 0.98) 0%, rgba(9, 6, 26, 0.98) 62%, rgba(4, 3, 15, 0.98) 100%);}body.piano-app-page[data-page="piano"] .hero-section::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;}body.piano-app-page[data-page="piano"] .hero-section::after {
  background-position: 18px 18px, 58px 42px;
  background-size: 78px 64px, 124px 94px;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::after {
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.86) 0 1px, transparent 1.6px),
    radial-gradient(circle, rgba(255, 78, 199, 0.7) 0 1px, transparent 1.8px);
  opacity: 0.45;}body.piano-app-page[data-page="piano"] .hero-copy {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.65rem;}body.piano-app-page[data-page="piano"] .section-kicker,
body.piano-app-page[data-page="piano"] .selector-label,
body.piano-app-page[data-page="piano"] .stat-label,
body.piano-app-page[data-page="piano"] .keyboard-legend {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .section-kicker,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .stat-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--pv-accent);
  text-shadow: 0 0 12px var(--pv-glow);}body.piano-app-page[data-page="piano"] .hero-section h1 {
  font-family: var(--font-body);
  font-size: 4.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section h1 {
  color: #fff4ff;
  text-shadow:
    0 3px 0 #562a84,
    0 0 16px rgba(187, 69, 255, 0.68),
    0 0 32px rgba(255, 78, 199, 0.32);}body.piano-app-page[data-page="piano"] .subtitle {
  max-width: 35rem;
  font-size: 1.05rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .subtitle {
  color: #ded2ea;}body.piano-app-page[data-page="piano"] .hero-visual-slot {
  position: relative;
  z-index: 1;
  min-height: 13rem;
  overflow: hidden;
  border: 0;
  border-radius: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-visual-slot {
  background:
    radial-gradient(circle at 72% 20%, #ffe7b8 0 0.75rem, #ff8c70 0.8rem 1.2rem, transparent 1.25rem),
    linear-gradient(115deg, transparent 0 41%, rgba(249, 240, 255, 0.92) 41% 47%, #17111f 47% 51%, rgba(249, 240, 255, 0.9) 51% 58%, transparent 58%),
    radial-gradient(ellipse at 68% 28%, rgba(255, 199, 102, 0.24), transparent 6rem),
    radial-gradient(ellipse at 36% 72%, rgba(124, 46, 255, 0.28), transparent 8rem);}body.piano-app-page[data-page="piano"] .hero-visual-slot::before,
body.piano-app-page[data-page="piano"] .hero-visual-slot::after {
  content: "";
  position: absolute;
  pointer-events: none;}body.piano-app-page[data-page="piano"] .hero-visual-slot::before {
  inset: 8% 20% auto auto;
  width: 5rem;
  height: 7rem;
  border-bottom-width: 8px;
  border-radius: 4rem 4rem 3px 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-visual-slot::before {
  border: 3px solid #6d3bb3;
  background:
    radial-gradient(circle at 50% 46%, rgba(255, 199, 102, 0.72), transparent 1.6rem),
    linear-gradient(#2b1844, #12091f);
  box-shadow: 0 0 30px rgba(255, 199, 102, 0.5), inset 0 0 18px rgba(255, 78, 199, 0.28);}body.piano-app-page[data-page="piano"] .hero-visual-slot::after {
  inset: auto 4% 7% 6%;
  height: 5rem;
  clip-path: polygon(0 82%, 16% 50%, 28% 68%, 42% 36%, 54% 58%, 67% 28%, 79% 48%, 100% 16%, 100% 100%, 0 100%);}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-visual-slot::after {
  background:
    radial-gradient(ellipse at 14% 72%, rgba(187, 69, 255, 0.72), transparent 3.3rem),
    radial-gradient(ellipse at 84% 62%, rgba(54, 220, 255, 0.34), transparent 2.6rem),
    linear-gradient(90deg, transparent 0 2%, #191228 2% 98%, transparent 98%);
  opacity: 0.88;}body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel {
  padding: 1rem;}body.piano-app-page[data-page="piano"] .search-field {
  position: relative;
  min-height: 3.25rem;
  padding: 0.6rem 0.75rem 0.6rem 2.85rem;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field {
  border-color: rgba(168, 70, 255, 0.58);
  background: rgba(2, 4, 12, 0.9);
  box-shadow: inset 0 0 16px rgba(0, 0, 0, 0.45);}body.piano-app-page[data-page="piano"] .search-field::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 1rem;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  transform: translateY(-50%);}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field::before {
  border: 2px solid var(--pv-muted);
  box-shadow: 0.43rem 0.43rem 0 -0.2rem var(--pv-muted);}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field:focus-within {
  border-color: var(--pv-focus);
  box-shadow: 0 0 0 3px rgba(114, 236, 255, 0.18), inset 0 0 18px rgba(114, 236, 255, 0.08);}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field input::placeholder {
  color: #8f839c;}body.piano-app-page[data-page="piano"] .keyboard-shortcut {
  border-radius: 3px;
  font-family: var(--font-body);}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-shortcut {
  border-color: rgba(168, 70, 255, 0.46);
  background: rgba(13, 12, 27, 0.95);
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu {
  gap: 0.55rem;}body.piano-app-page[data-page="piano"] .chord-type-selector .category-tabs {
  max-width: 100%;
  padding-bottom: 0.1rem;
  overflow-x: auto;
  overflow-y: hidden;
  flex-wrap: nowrap;
  scrollbar-width: thin;}body.piano-app-page[data-page="piano"] .chord-type-selector .category-tabs button {
  flex: 0 0 auto;
  white-space: nowrap;}body.piano-app-page[data-page="piano"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"] .type-menu button:hover,
body.piano-app-page[data-page="piano"] .root-menu button:hover,
body.piano-app-page[data-page="piano"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"] .header-control:hover,
body.piano-app-page[data-page="piano"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"] .card-actions button:hover,
body.piano-app-page[data-page="piano"] .related-chords-card button:hover {
  transform: translateY(-1px);}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:hover {
  border-color: var(--pv-accent-2);
  background: var(--pv-button-hover);
  color: var(--pv-text);
  box-shadow: 0 0 14px rgba(255, 78, 199, 0.28), inset 0 0 18px rgba(168, 70, 255, 0.14);}body.piano-app-page[data-page="piano"] .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"] .type-menu button:focus-visible,
body.piano-app-page[data-page="piano"] .root-menu button:focus-visible,
body.piano-app-page[data-page="piano"] .notation-toggle button:focus-visible,
body.piano-app-page[data-page="piano"] .header-control:focus-visible,
body.piano-app-page[data-page="piano"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"] .card-actions button:focus-visible,
body.piano-app-page[data-page="piano"] .related-chords-card button:focus-visible,
body.piano-app-page[data-page="piano"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"] .repeat-button:focus-visible {
  outline-offset: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:focus-visible {
  border-color: var(--pv-focus);
  outline: 2px solid var(--pv-focus);
  box-shadow: 0 0 0 4px rgba(114, 236, 255, 0.16), 0 0 18px rgba(114, 236, 255, 0.24);}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-selector .root-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button[aria-pressed="true"] {
  border-color: var(--pv-accent);
  background: var(--pv-button-active);
  color: #fff;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.45);
  box-shadow:
    inset 0 0 12px rgba(255, 255, 255, 0.12),
    0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .selector-panel h2,
body.piano-app-page[data-page="piano"] .card h2 {
  font-weight: 700;
  letter-spacing: 0.03em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel h2,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card h2 {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout {
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);}body.piano-app-page[data-page="piano"] .card {
  padding: 1.25rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 1rem 1.25rem;}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
  grid-column: 2;}body.piano-app-page[data-page="piano"] .chord-symbol {
  width: 7rem;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 4.2rem;
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-symbol {
  border-color: var(--pv-border-bright);
  background:
    radial-gradient(circle at 45% 38%, rgba(187, 69, 255, 0.34), transparent 3rem),
    linear-gradient(180deg, #160b2a, #060713);
  color: #f5e6ff;
  text-shadow: 0 0 16px var(--pv-glow-strong), 3px 3px 0 #4c1c83;
  box-shadow: inset 0 0 24px rgba(168, 70, 255, 0.26), 0 0 22px rgba(168, 70, 255, 0.26);}body.piano-app-page[data-page="piano"] .chord-heading-row {
  align-self: center;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.08;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-heading-row h2 {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] [data-quality="Power"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Sus2"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Sus4"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Augmented"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Diminished"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="maj7"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="m7"] .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="7"] .chord-symbol {
  padding: 0.35rem;
  font-size: 2.25rem;
  overflow-wrap: anywhere;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="Power"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="Sus2"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="Sus4"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="Augmented"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="Diminished"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="maj7"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="m7"] .chord-symbol,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-quality="7"] .chord-symbol {
  text-shadow: 0 0 16px var(--pv-glow-strong), 2px 2px 0 #4c1c83;}body.piano-app-page[data-page="piano"][data-theme="dark"] .card p {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .card-actions {
  margin-top: 0.35rem;}body.piano-app-page[data-page="piano"] .piano-card {
  gap: 1rem;}body.piano-app-page[data-page="piano"] .piano-card-header {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 1.25rem;}body.piano-app-page[data-page="piano"] .piano-card-header > div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  width: 100%;
  margin-left: 0;
  padding-bottom: 0.65rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-card-header > div {
  border-bottom: 1px solid rgba(168, 70, 255, 0.22);}body.piano-app-page[data-page="piano"] .piano-card-header .repeat-button {
  align-self: center;
  width: 2.65rem;
  height: 2.65rem;
  border-radius: 50%;}body.piano-app-page[data-page="piano"] .play-button {
  width: 5.75rem;
  height: 5.75rem;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button {
  border-color: var(--pv-border-bright);
  background:
    radial-gradient(circle at 48% 45%, rgba(255, 255, 255, 0.24), transparent 1.6rem),
    linear-gradient(180deg, #7c2eff, #2b0a58);
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.12), 0 0 24px var(--pv-glow);}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:hover {
  border-color: var(--pv-accent-2);
  background:
    radial-gradient(circle at 48% 45%, rgba(255, 255, 255, 0.28), transparent 1.7rem),
    linear-gradient(180deg, #ff4ec7, #6114b8);}body.piano-app-page[data-page="piano"] .play-icon {
  border-top-width: 1rem;
  border-bottom-width: 1rem;
  border-left-width: 1.45rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-icon {
  border-left-color: #fff;
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.65));}body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button {
  border-color: rgba(168, 70, 255, 0.6);
  background: rgba(15, 9, 32, 0.96);
  color: var(--pv-text);}body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-icon {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline] {
  font-family: var(--font-body);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: 0.08em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .formula-line,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-dynamic-chord-notes-inline] {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .note-line {
  padding-bottom: 0.65rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .note-line {
  border-bottom: 1px solid rgba(168, 70, 255, 0.18);}body.piano-app-page[data-page="piano"] .keyboard {
  margin: 0;
  padding: 0.35rem;
  overflow-x: auto;
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard {
  border: 1px solid rgba(168, 70, 255, 0.28);
  background: rgba(1, 2, 8, 0.48);}body.piano-app-page[data-page="piano"] .piano-svg {
  min-width: 480px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg {
  filter: drop-shadow(0 0 10px rgba(168, 70, 255, 0.2));}body.piano-app-page[data-page="piano"] .white-key {
  stroke-width: 1.7;}body.piano-app-page[data-page="piano"][data-theme="dark"] .white-key {
  fill: var(--pv-key-white);
  stroke: var(--pv-key-white-stroke);}body.piano-app-page[data-page="piano"] .black-key {
  stroke-width: 0.8;}body.piano-app-page[data-page="piano"][data-theme="dark"] .black-key {
  fill: var(--pv-key-black);
  stroke: #4c3677;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.white-key,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.black-key {
  fill: var(--pv-key-active);
  stroke: #d9bcff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg.is-playing .key-active.white-key,
body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg.is-playing .key-active.black-key {
  fill: var(--pv-accent-2);}body.piano-app-page[data-page="piano"] .key-label,
body.piano-app-page[data-page="piano"] .black-label {
  font-family: var(--font-body);
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-label {
  fill: #21162d;}body.piano-app-page[data-page="piano"][data-theme="dark"] .black-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active + .key-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active + .black-label {
  fill: var(--pv-key-active-text);}body.piano-app-page[data-page="piano"] .keyboard-legend {
  display: inline-flex;
  justify-self: center;
  gap: 0.35rem;
  align-items: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .keyboard-legend::before {
  content: "";
  width: 0.75rem;
  height: 0.75rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend::before {
  border: 1px solid rgba(168, 70, 255, 0.6);
  background: var(--pv-key-active);
  box-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .chord-info-card {
  grid-template-columns: 5.5rem minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .future-illustration-slot {
  min-height: 5.5rem;
  border: 0;
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot {
  background:
    radial-gradient(circle at 50% 46%, #36dcff 0 0.4rem, #080916 0.45rem 0.9rem, transparent 0.95rem),
    radial-gradient(circle at 50% 42%, rgba(124, 46, 255, 0.9), transparent 2.5rem),
    linear-gradient(180deg, #29124c, #080916);
  box-shadow: inset 0 0 20px rgba(168, 70, 255, 0.24), 0 0 18px rgba(54, 220, 255, 0.14);}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card h2 {
  color: var(--pv-accent);
  text-shadow: 0 0 12px var(--pv-glow);}body.piano-app-page[data-page="piano"] .related-chords-list {
  gap: 0.55rem;}body.piano-app-page[data-page="piano"] .related-chords-list li {
  padding: 0.7rem;
  border-radius: 3px;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li {
  border: 1px solid rgba(168, 70, 255, 0.18);
  background: rgba(3, 5, 14, 0.48);}body.piano-app-page[data-page="piano"] .related-chords-list li:hover {
  transform: translateY(-1px);}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li:hover {
  border-color: rgba(168, 70, 255, 0.6);
  box-shadow: 0 0 14px rgba(168, 70, 255, 0.16);}body.piano-app-page[data-page="piano"] .related-chords-list span:first-child {
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list span:first-child {
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .related-chords-list span + span {
  font-weight: 700;
  letter-spacing: 0.08em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list span + span {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-toggle {
  border-color: rgba(168, 70, 255, 0.42);}body.piano-app-page[data-page="piano"][data-theme="dark"] footer {
  color: var(--pv-muted);
  text-shadow: 0 0 10px rgba(168, 70, 255, 0.18);}body.piano-app-page[data-page="piano"] .key-progressions-page {
  gap: 1rem;}body.piano-app-page[data-page="piano"] .key-hero-section h1 {
  font-size: clamp(3rem, 6vw, 4.6rem);}body.piano-app-page[data-page="piano"] .key-selector-panel .helper-text {
  margin: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-selector-panel .helper-text {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
  margin: 0.35rem 0 0;}body.piano-app-page[data-page="piano"] .key-summary-card {
  display: grid;
  gap: 0.45rem;
  justify-items: center;
  padding: 1.35rem;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card {
  background:
    radial-gradient(circle at 50% 0%, rgba(168, 70, 255, 0.2), transparent 14rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 42%),
    var(--pv-panel);}body.piano-app-page[data-page="piano"] .key-summary-card h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card h2 {
  color: var(--pv-text);
  text-shadow: 0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .key-summary-card .scale-line {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: 0.08em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card .scale-line {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .section-heading-row {
  display: grid;
  gap: 0.15rem;
  margin-bottom: 0.85rem;}body.piano-app-page[data-page="piano"] .section-heading-row h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .section-heading-row h2 {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .key-chords {
  margin-top: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card {
  display: grid;
  gap: 0.85rem;
  align-content: start;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 0.6rem;
  margin: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title h3 {
  align-self: center;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .card-title h3 {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .key-chord-grid .keyboard {
  margin: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid .piano-svg,
body.piano-app-page[data-page="piano"] .progression-keyboard .piano-svg {
  min-width: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid .card > p {
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .card > p {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .progressions-panel {
  position: relative;
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 1.25rem;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel {
  border: 1px solid var(--pv-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 40%),
    var(--pv-panel);
  box-shadow:
    inset 0 0 0 1px rgba(229, 178, 255, 0.06),
    inset 0 -16px 30px rgba(0, 0, 0, 0.28),
    0 0 20px rgba(64, 26, 121, 0.26);}body.piano-app-page[data-page="piano"] .progressions-panel::before {
  content: "";
  position: absolute;
  inset: 5px;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel::before {
  border: 1px solid rgba(168, 70, 255, 0.22);}body.piano-app-page[data-page="piano"] .progressions-panel ol {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
  min-height: 0;
  padding: 0.85rem;
  border-radius: 3px;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li {
  border-color: rgba(168, 70, 255, 0.34);
  background: rgba(3, 5, 14, 0.5);
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.28);}body.piano-app-page[data-page="piano"] .progressions-panel ol > li:hover,
body.piano-app-page[data-page="piano"] .progressions-panel ol > li.is-playing {
  transform: translateY(-1px);}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li.is-playing {
  border-color: rgba(255, 78, 199, 0.66);
  box-shadow: 0 0 18px rgba(255, 78, 199, 0.18), inset 0 0 18px rgba(168, 70, 255, 0.1);}body.piano-app-page[data-page="piano"] .progressions-panel .progression-content {
  display: grid;
  gap: 0.3rem;}body.piano-app-page[data-page="piano"] .progressions-panel span {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  letter-spacing: 0.06em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel span {
  color: var(--pv-accent);
  text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .progressions-panel .progression-chords {
  margin: 0;
  font-weight: 700;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .progression-chords {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button,
body.piano-app-page[data-page="piano"] .progressions-panel .repeat-button {
  width: 2.45rem;
  height: 2.45rem;
  border-radius: 50%;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .play-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .repeat-button {
  border-color: rgba(168, 70, 255, 0.7);
  background:
    radial-gradient(circle at 48% 45%, rgba(255, 255, 255, 0.2), transparent 0.75rem),
    linear-gradient(180deg, #7c2eff, #2b0a58);
  color: var(--pv-text);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.1), 0 0 14px rgba(168, 70, 255, 0.28);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .play-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .repeat-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .play-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .repeat-button:hover {
  border-color: var(--pv-accent-2);
  background:
    radial-gradient(circle at 48% 45%, rgba(255, 255, 255, 0.24), transparent 0.8rem),
    linear-gradient(180deg, #ff4ec7, #6114b8);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .play-icon,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .play-icon {
  border-left-color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .repeat-icon,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .repeat-icon {
  color: #fff;}body.piano-app-page[data-page="piano"] .progression-animation {
  width: 100%;
  margin-top: 0.75rem;}body.piano-app-page[data-page="piano"] .progression-step {
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-step {
  border-color: rgba(168, 70, 255, 0.36);
  background: rgba(1, 2, 8, 0.54);
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-animation.is-active .progression-step {
  border-color: var(--pv-accent-2);
  color: var(--pv-text);
  box-shadow: 0 0 0 2px rgba(255, 78, 199, 0.2), 0 0 16px rgba(255, 78, 199, 0.28);}body.piano-app-page[data-page="piano"] .progression-keyboard {
  padding: 0.25rem;
  overflow-x: auto;
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-keyboard {
  border: 1px solid rgba(168, 70, 255, 0.22);
  background: rgba(1, 2, 8, 0.45);}@media (max-width: 820px) {body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout,
body.piano-app-page[data-page="piano"] .chord-info-card {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .hero-section h1 {
    font-size: 3.3rem;}body.piano-app-page[data-page="piano"] .hero-visual-slot {
    min-height: 9rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
    grid-template-columns: auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .progressions-panel ol {
    grid-template-columns: 1fr;}
}@media (max-width: 540px) {body.piano-app-page[data-page="piano"] {
    padding: 0.65rem;}body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .card {
    padding: 0.85rem;}body.piano-app-page[data-page="piano"] .site-brand {
    font-size: 1.12rem;}body.piano-app-page[data-page="piano"] .site-section {
    font-size: 0.95rem;}body.piano-app-page[data-page="piano"] .hero-section h1 {
    font-size: 2.65rem;}body.piano-app-page[data-page="piano"] .key-hero-section h1 {
    font-size: 2.25rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .piano-card-header,
body.piano-app-page[data-page="piano"] .piano-card-header > div {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .chord-symbol {
    width: 5.25rem;
    font-size: 3rem;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
    font-size: 1.85rem;}body.piano-app-page[data-page="piano"] .play-button {
    width: 4.75rem;
    height: 4.75rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button,
body.piano-app-page[data-page="piano"] .progressions-panel .repeat-button {
    width: 2.45rem;
    height: 2.45rem;}body.piano-app-page[data-page="piano"] .key-chord-grid {
    grid-template-columns: 1fr;}
}@media (prefers-reduced-motion: reduce) {body.piano-app-page[data-page="piano"] *,
body.piano-app-page[data-page="piano"] *::before,
body.piano-app-page[data-page="piano"] *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;}
}.redirect-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  text-align: center;
}body.piano-app-page[data-page="piano"][data-theme="dark"] .redirect-page a {
  color: var(--highlight);
}/* Piano Dark Theme visual layer. */
body.piano-app-page[data-page="piano"] {
  padding: 0.75rem;}/* Piano Dark Theme visual layer. */
body.piano-app-page[data-page="piano"][data-theme="dark"] {
  --pv-bg: #02030a;
  --pv-bg-deep: #00010a;
  --pv-panel: rgba(3, 7, 18, 0.94);
  --pv-panel-strong: rgba(5, 8, 22, 0.98);
  --pv-panel-soft: rgba(22, 10, 45, 0.72);
  --pv-border: #39245f;
  --pv-border-bright: #9d35ff;
  --pv-border-hot: #e54dff;
  --pv-text: #f8efff;
  --pv-muted: #b9aec7;
  --pv-accent: #bd35ff;
  --pv-accent-2: #ff4fc9;
  --pv-accent-3: #36e4ff;
  --pv-focus: #7decff;
  --pv-glow: rgba(168, 70, 255, 0.48);
  --pv-glow-strong: rgba(221, 79, 255, 0.72);
  --pv-button: #080c18;
  --pv-button-hover: #16102d;
  --pv-button-active: linear-gradient(180deg, #7e2bf4 0%, #4d129d 100%);
  --pv-key-white: #f6ebf8;
  --pv-key-white-stroke: #1d1429;
  --pv-key-black: #050714;
  --pv-key-active: #7b2df1;
  --pv-key-active-text: #ffffff;
  background:
    radial-gradient(circle at 18% 12%, rgba(171, 49, 255, 0.18), transparent 22rem),
    radial-gradient(circle at 78% 18%, rgba(54, 228, 255, 0.12), transparent 24rem),
    linear-gradient(180deg, #02030a 0%, #030611 46%, #00010a 100%);}body.piano-app-page[data-page="piano"] .app-shell {
  gap: 0.75rem;
  width: min(1200px, 100%);}body.piano-app-page[data-page="piano"] .app-shell::before {
  inset: -0.45rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .app-shell::before {
  border-color: rgba(157, 53, 255, 0.58);
  box-shadow: 0 0 0 1px rgba(255, 79, 201, 0.16), 0 0 34px rgba(99, 38, 171, 0.42);}body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .card {
  border-radius: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section,
body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card {
  border-color: var(--pv-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 36%),
    linear-gradient(180deg, var(--pv-panel-strong), var(--pv-panel));
  box-shadow:
    inset 0 0 0 1px rgba(229, 178, 255, 0.08),
    inset 0 -18px 32px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(0, 0, 0, 0.75),
    0 0 22px rgba(75, 30, 138, 0.34);}body.piano-app-page[data-page="piano"] .site-header::before,
body.piano-app-page[data-page="piano"] .hero-section::before,
body.piano-app-page[data-page="piano"] .search-panel::before,
body.piano-app-page[data-page="piano"] .selector-panel::before,
body.piano-app-page[data-page="piano"] .card::before {
  inset: 6px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card::before {
  border-color: rgba(168, 70, 255, 0.34);
  box-shadow: inset 0 0 14px rgba(168, 70, 255, 0.12);}body.piano-app-page[data-page="piano"] .site-header {
  display: flex;
  gap: 1rem;
  min-height: 4.4rem;
  padding: 0.75rem 1rem;}body.piano-app-page[data-page="piano"] .site-header::after {
  inset: auto 1rem 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header::after {
  background: linear-gradient(90deg, transparent, var(--pv-accent), var(--pv-accent-3), var(--pv-accent-2), transparent);}body.piano-app-page[data-page="piano"] .site-brand-lockup {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;}body.piano-app-page[data-page="piano"] .site-logo {
  position: relative;
  display: grid;
  flex: 0 0 auto;
  width: 3.6rem;
  height: 3.2rem;
  padding: 0.34rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-logo {
  border: 2px solid #6e2fc4;
  background: #050814;
  box-shadow: inset 0 0 0 1px #d16fff, 0 0 16px rgba(157, 53, 255, 0.6);}body.piano-app-page[data-page="piano"] .site-logo span {
  display: block;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-logo span {
  background:
    linear-gradient(90deg, #f6edf8 0 17%, #050714 17% 28%, #f6edf8 28% 47%, #050714 47% 58%, #f6edf8 58% 78%, #050714 78% 88%, #f6edf8 88% 100%);
  box-shadow: inset 0 -0.45rem 0 rgba(123, 45, 241, 0.7);}body.piano-app-page[data-page="piano"] .site-brand {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  letter-spacing: 0.06em;
  white-space: nowrap;}body.piano-app-page[data-page="piano"] .site-section {
  padding-left: 0.9rem;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  white-space: nowrap;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-section {
  border-left: 2px solid var(--pv-accent);
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .site-actions {
  position: relative;
  z-index: 1;
  margin-left: auto;
  gap: 0.65rem;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-icon-button,
body.piano-app-page[data-page="piano"] .card-actions button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .related-chords-card button,
body.piano-app-page[data-page="piano"] .root-menu button,
body.piano-app-page[data-page="piano"] .notation-toggle button {
  min-height: 2.4rem;
  border-radius: 2px;
  font-size: 0.96rem;
  letter-spacing: 0.045em;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button {
  border-color: rgba(158, 73, 255, 0.7);
  background: linear-gradient(180deg, #0d1120, #060916);
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .header-select {
  min-width: 9.6rem;}body.piano-app-page[data-page="piano"] .hero-section {
  display: block;
  min-height: 0;
  padding: 0.55rem;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section {
  background: #02030a;}body.piano-app-page[data-page="piano"] .hero-section::after {
  display: none;}body.piano-app-page[data-page="piano"] .hero-image-frame {
  position: relative;
  z-index: 1;
  overflow: hidden;
  aspect-ratio: 3 / 1;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-image-frame {
  background: #02030a;}body.piano-app-page[data-page="piano"] .hero-image-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  image-rendering: auto;}body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel {
  gap: 0.8rem;
  padding: 0.85rem;}body.piano-app-page[data-page="piano"] .search-field {
  min-height: 3rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field {
  border-color: rgba(157, 53, 255, 0.72);
  background: #060916;}body.piano-app-page[data-page="piano"] .keyboard-shortcut {
  min-width: 4.1rem;
  text-align: center;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu {
  gap: 0.62rem;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
  min-width: 6.6rem;}body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
  min-width: 6.15rem;}body.piano-app-page[data-page="piano"] .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .type-menu button {
  text-transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:hover {
  border-color: var(--pv-border-hot);
  background: linear-gradient(180deg, #1c1435, #0b0d1b);
  box-shadow: 0 0 14px rgba(255, 79, 201, 0.3), inset 0 0 16px rgba(157, 53, 255, 0.18);}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-selector .root-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button[aria-pressed="true"] {
  border-color: #c85aff;
  background: var(--pv-button-active);
  box-shadow: inset 0 0 16px rgba(255, 255, 255, 0.14), 0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .chord-layout {
  grid-template-columns: minmax(320px, 0.68fr) minmax(0, 1fr);
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .chord-details-layout {
  grid-template-columns: minmax(0, 1fr) minmax(360px, 1fr);
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .card {
  padding: 1.05rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
  grid-template-columns: 9.6rem minmax(0, 1fr);
  min-height: 15.7rem;}body.piano-app-page[data-page="piano"] .chord-emblem {
  position: relative;
  z-index: 1;
  display: block;
  width: 9rem;
  aspect-ratio: 1;
  align-self: start;}body.piano-app-page[data-page="piano"] .chord-emblem img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-emblem img {
  filter: drop-shadow(0 0 14px rgba(189, 53, 255, 0.44));}body.piano-app-page[data-page="piano"] .chord-emblem .chord-symbol {
  position: absolute;
  inset: 0;
  width: auto;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-emblem .chord-symbol {
  opacity: 0;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
  font-size: clamp(1.85rem, 3vw, 2.35rem);}body.piano-app-page[data-page="piano"] .header-icon-button {
  font-size: 1.35rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button {
  color: var(--pv-accent-2);}body.piano-app-page[data-page="piano"] .card-actions button {
  min-width: 7.8rem;}body.piano-app-page[data-page="piano"] .piano-card-header {
  grid-template-columns: auto auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .piano-card .play-button {
  position: relative;
  width: 6.4rem;
  height: 6.4rem;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .piano-card .play-button img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-card .play-button img {
  filter: drop-shadow(0 0 16px rgba(189, 53, 255, 0.5));}body.piano-app-page[data-page="piano"] .piano-card .play-button .play-icon {
  display: none;}body.piano-app-page[data-page="piano"] .piano-card-header > div {
  grid-template-columns: 8.5rem minmax(0, 1fr);
  padding-bottom: 0.8rem;}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline] {
  letter-spacing: 0.12em;}body.piano-app-page[data-page="piano"] .keyboard {
  padding: 0.5rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard {
  background: #02050e;}body.piano-app-page[data-page="piano"] .piano-svg {
  min-width: 560px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .white-key {
  fill: var(--pv-key-white);}body.piano-app-page[data-page="piano"][data-theme="dark"] .black-key {
  fill: var(--pv-key-black);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.white-key,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.black-key {
  fill: var(--pv-key-active);
  filter: drop-shadow(0 0 4px rgba(189, 53, 255, 0.85));}body.piano-app-page[data-page="piano"] .chord-info-card {
  grid-template-columns: 7.3rem minmax(0, 1fr);
  min-height: 12.8rem;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
  display: grid;
  align-self: center;
  place-items: center;
  min-height: 7.1rem;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .future-illustration-slot img {
  display: block;
  width: min(6.4rem, 100%);
  height: auto;}body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot img {
  filter: drop-shadow(0 0 14px rgba(100, 47, 255, 0.5));}body.piano-app-page[data-page="piano"] .related-card-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.8rem;}body.piano-app-page[data-page="piano"] .related-card-title img {
  width: 2.35rem;
  height: auto;
  flex: 0 0 auto;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-card-title img {
  filter: drop-shadow(0 0 10px rgba(54, 228, 255, 0.55));}body.piano-app-page[data-page="piano"] .related-card-title h2 {
  margin: 0;
  text-transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-card-title h2 {
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .related-chords-list li {
  min-height: 4.5rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li {
  border-color: rgba(157, 53, 255, 0.3);
  background: linear-gradient(180deg, rgba(8, 12, 26, 0.86), rgba(3, 7, 18, 0.8));}body.piano-app-page[data-page="piano"] .related-chords-list li button {
  min-width: 4.1rem;}body.piano-app-page[data-page="piano"] footer {
  padding-bottom: 0.25rem;}@media (max-width: 900px) {body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .site-brand-lockup,
body.piano-app-page[data-page="piano"] .site-actions {
    width: 100%;}body.piano-app-page[data-page="piano"] .site-actions {
    margin-left: 0;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    aspect-ratio: 2.35 / 1;}body.piano-app-page[data-page="piano"] .hero-image-frame img {
    object-position: 42% center;}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout {
    grid-template-columns: 1fr;}
}@media (max-width: 600px) {body.piano-app-page[data-page="piano"] {
    padding: 0.55rem;}body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .card {
    padding: 0.78rem;}body.piano-app-page[data-page="piano"] .site-logo {
    width: 3rem;
    height: 2.7rem;}body.piano-app-page[data-page="piano"] .site-brand-lockup {
    gap: 0.55rem;}body.piano-app-page[data-page="piano"] .site-section {
    width: 100%;
    margin-left: 3.55rem;
    padding-left: 0;
    border-left: 0;}body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-control {
    min-width: 0;
    flex: 1 1 8rem;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    aspect-ratio: 1.55 / 1;}body.piano-app-page[data-page="piano"] .hero-image-frame img {
    object-position: 33% center;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
    min-width: 4.8rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .piano-card-header,
body.piano-app-page[data-page="piano"] .piano-card-header > div,
body.piano-app-page[data-page="piano"] .chord-info-card {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .chord-emblem {
    width: 7.6rem;}body.piano-app-page[data-page="piano"] .piano-card .play-button {
    width: 5.5rem;
    height: 5.5rem;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
    justify-self: start;}body.piano-app-page[data-page="piano"] .related-chords-list li {
    align-items: stretch;
    flex-direction: column;}
}/* Piano progressions shared layout and Dark Theme visuals. */
body.piano-app-page[data-page="piano"] .key-progressions-page {
  display: grid;
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .key-selector-panel {
  overflow: hidden;}body.piano-app-page[data-page="piano"] .key-selector-panel .helper-text {
  max-width: 44rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-selector-panel .helper-text {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
  gap: 0.62rem;
  justify-content: flex-start;}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
  min-width: 5.2rem;
  text-transform: none;}body.piano-app-page[data-page="piano"] .key-summary-card {
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  justify-items: stretch;
  gap: 1rem;
  overflow: hidden;
  min-height: 9.5rem;
  text-align: left;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card {
  background:
    radial-gradient(circle at 11% 45%, rgba(54, 228, 255, 0.18), transparent 8rem),
    radial-gradient(circle at 90% 30%, rgba(189, 53, 255, 0.22), transparent 12rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 42%),
    var(--pv-panel);}body.piano-app-page[data-page="piano"] .key-summary-card h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card h2 {
  color: var(--pv-text);
  text-shadow: 0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .key-summary-card .scale-line {
  margin: 0.15rem 0 0;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 700;
  letter-spacing: 0.08em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card .scale-line {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .key-summary-icon {
  position: relative;
  z-index: 1;
  width: 3.8rem;
  height: auto;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-icon {
  filter: drop-shadow(0 0 12px rgba(54, 228, 255, 0.58));}body.piano-app-page[data-page="piano"] .key-summary-sprite {
  position: relative;
  z-index: 1;
  width: min(6.8rem, 18vw);
  height: auto;
  justify-self: end;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-sprite {
  filter: drop-shadow(0 0 16px rgba(54, 228, 255, 0.32));}body.piano-app-page[data-page="piano"] .section-heading-row-with-asset {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;}body.piano-app-page[data-page="piano"] .section-heading-icon {
  position: relative;
  z-index: 1;
  width: 3.25rem;
  height: auto;}body.piano-app-page[data-page="piano"][data-theme="dark"] .section-heading-icon {
  filter: drop-shadow(0 0 12px rgba(189, 53, 255, 0.42));}body.piano-app-page[data-page="piano"] .key-chords {
  display: grid;
  gap: 0.75rem;}body.piano-app-page[data-page="piano"] .key-chord-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card {
  min-height: 15rem;
  gap: 0.75rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title {
  grid-template-columns: auto auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title h3 {
  align-self: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .card-title h3 {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .keyboard {
  border-color: rgba(157, 53, 255, 0.3);}body.piano-app-page[data-page="piano"] .key-chord-grid .piano-svg {
  min-width: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button {
  position: relative;
  width: 2.9rem;
  height: 2.9rem;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button::before,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button::before {
  content: "";
  position: absolute;
  inset: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .play-button::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .play-button::before {
  background: url("assets/themes/dark/dark-play-button.webp") center / contain no-repeat;
  filter: drop-shadow(0 0 11px rgba(189, 53, 255, 0.45));}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button .play-icon,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button .play-icon {
  display: none;}body.piano-app-page[data-page="piano"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"] .progressions-panel .repeat-button {
  width: 2.45rem;
  height: 2.45rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .repeat-button {
  border-color: rgba(157, 53, 255, 0.7);
  background: linear-gradient(180deg, #17112c, #070916);
  box-shadow: 0 0 12px rgba(157, 53, 255, 0.24);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .repeat-icon,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .repeat-icon {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .progressions-panel {
  overflow: hidden;
  padding: 1.05rem;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
  position: absolute;
  top: 0.65rem;
  right: 1rem;
  z-index: 1;
  width: min(7.6rem, 17vw);
  height: auto;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel-sprite {
  opacity: 0.95;
  filter: drop-shadow(0 0 18px rgba(255, 146, 49, 0.24));}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
  position: relative;
  z-index: 2;
  padding-right: min(8.5rem, 18vw);}body.piano-app-page[data-page="piano"] .progressions-panel ol {
  position: relative;
  z-index: 2;}body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: center;
  gap: 0.65rem;
  min-height: 4.8rem;
  padding: 0.75rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li {
  border-color: rgba(157, 53, 255, 0.32);
  background: linear-gradient(180deg, rgba(8, 12, 26, 0.88), rgba(3, 7, 18, 0.82));}body.piano-app-page[data-page="piano"] .progressions-panel .progression-content {
  min-width: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel span {
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .progressions-panel .progression-chords {
  overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .progression-chords {
  color: var(--pv-text);}@media (max-width: 900px) {body.piano-app-page[data-page="piano"] .key-summary-card {
    grid-template-columns: auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .key-summary-sprite {
    display: none;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
    width: 5.2rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel-sprite {
    opacity: 0.42;}
}@media (max-width: 600px) {body.piano-app-page[data-page="piano"] .key-summary-card,
body.piano-app-page[data-page="piano"] .section-heading-row-with-asset,
body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .key-summary-icon,
body.piano-app-page[data-page="piano"] .section-heading-icon {
    width: 2.7rem;}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
    padding-right: 0;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
    display: none;}
}/* Piano shared action button layout and Dark Theme image states. */
body.piano-app-page[data-page="piano"] {
  --pv-main-action-size: 6.4rem;
  --pv-compact-action-size: 2.9rem;}/* Piano shared action button layout and Dark Theme image states. */
body.piano-app-page[data-page="piano"][data-theme="dark"] {
  --pv-play-button-image: url("assets/themes/dark/dark-play-button.webp");
  --pv-play-button-hover-image: url("assets/themes/dark/dark-play-button-hover.webp");
  --pv-repeat-button-image: url("assets/themes/dark/dark-repeat-button.webp");
  --pv-repeat-button-hover-image: url("assets/themes/dark/dark-repeat-button-hover.webp");
  --pv-repeat-button-active-image: url("assets/themes/dark/dark-repeat-button-active.webp");}body.piano-app-page[data-page="piano"] .play-button,
body.piano-app-page[data-page="piano"] .repeat-button {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .play-button::before,
body.piano-app-page[data-page="piano"] .repeat-button::before {
  content: "";
  position: absolute;
  inset: 0;}body.piano-app-page[data-page="piano"] .play-button::before,
body.piano-app-page[data-page="piano"] .repeat-button::before {
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button::before {
  filter: drop-shadow(0 0 12px rgba(189, 53, 255, 0.46));}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button::before {
  background-image: var(--pv-play-button-image);}body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button::before {
  background-image: var(--pv-repeat-button-image);}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:hover::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:focus-visible::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:active::before {
  background-image: var(--pv-play-button-hover-image);
  filter: drop-shadow(0 0 16px rgba(255, 79, 201, 0.58));}body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:hover::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:focus-visible::before {
  background-image: var(--pv-repeat-button-hover-image);
  filter: drop-shadow(0 0 16px rgba(255, 79, 201, 0.58));}body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:active::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button.is-looping::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button[aria-pressed="true"]::before {
  background-image: var(--pv-repeat-button-active-image);
  filter: drop-shadow(0 0 16px rgba(255, 79, 201, 0.58));}body.piano-app-page[data-page="piano"] .play-button img,
body.piano-app-page[data-page="piano"] .piano-card .play-button img,
body.piano-app-page[data-page="piano"] .play-icon,
body.piano-app-page[data-page="piano"] .repeat-icon {
  display: none;}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button {
  width: var(--pv-main-action-size);
  height: var(--pv-main-action-size);}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button,
body.piano-app-page[data-page="piano"] .progressions-panel .repeat-button {
  width: var(--pv-compact-action-size);
  height: var(--pv-compact-action-size);}@media (max-width: 600px) {body.piano-app-page[data-page="piano"] {
    --pv-main-action-size: 5.5rem;}
}/* Piano Dark Theme visual layer. */
body.piano-app-page[data-page="piano"] {
  --pv-main-action-size: clamp(6.4rem, 8vw, 8rem);
  --pv-compact-action-size: 2.75rem;
  min-height: 100vh;
  padding: 0.85rem;
  overflow-x: hidden;
  font-family: var(--font-body);}/* Piano Dark Theme visual layer. */
body.piano-app-page[data-page="piano"][data-theme="dark"] {
  --pv-bg: #03030a;
  --pv-bg-deep: #060716;
  --pv-panel: #070b18;
  --pv-panel-2: #0b1022;
  --pv-panel-inner: #050813;
  --pv-border: #392052;
  --pv-border-bright: #8c35ff;
  --pv-accent: #a73dff;
  --pv-accent-2: #ff4fca;
  --pv-cyan: #38d9ff;
  --pv-text: #f4ecff;
  --pv-muted: #aaa0bd;
  --pv-dim: #6f6380;
  --pv-glow: rgba(160, 61, 255, 0.55);
  --pv-glow-soft: rgba(160, 61, 255, 0.22);
  --pv-pink-soft: rgba(255, 79, 202, 0.2);
  --pv-button: #080b17;
  --pv-button-hover: #121329;
  --pv-button-active: linear-gradient(180deg, #7b24dc 0%, #451077 100%);
  --pv-key-white: #f1e8f4;
  --pv-key-white-stroke: #21162d;
  --pv-key-black: #030511;
  --pv-key-active: #7f29e8;
  --pv-key-active-text: #ffffff;
  --pv-play-button-image: url("assets/themes/dark/dark-play-button.webp");
  --pv-play-button-hover-image: url("assets/themes/dark/dark-play-button-hover.webp");
  --pv-repeat-button-image: url("assets/themes/dark/dark-repeat-button.webp");
  --pv-repeat-button-hover-image: url("assets/themes/dark/dark-repeat-button-hover.webp");
  --pv-repeat-button-active-image: url("assets/themes/dark/dark-repeat-button-active.webp");
  --bg: var(--pv-bg);
  --panel: var(--pv-panel);
  --text: var(--pv-text);
  --muted: var(--pv-muted);
  --accent: var(--pv-accent);
  --highlight: var(--pv-accent);
  --play-highlight: var(--pv-accent-2);
  --scrollbar-track: #050111;
  --scrollbar-thumb: #a73dff;
  --scrollbar-thumb-hover: #c176ff;
  --scrollbar-thumb-border: #050111;
  color: var(--pv-text);
  background:
    radial-gradient(circle at 20% 0%, rgba(98, 35, 170, 0.25), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(35, 120, 210, 0.12), transparent 32%),
    radial-gradient(circle at 52% 96%, rgba(255, 79, 202, 0.1), transparent 30rem),
    #03030a;}body.piano-app-page[data-page="piano"]::before {
  background-position: 8px 10px, 44px 38px, 0 0, 0 0;
  background-size: 82px 74px, 124px 112px, 42px 42px, 42px 42px;}

body.piano-app-page[data-page="piano"][data-theme="dark"]::before {
  background-image:
    radial-gradient(circle, rgba(244, 236, 255, 0.78) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(167, 61, 255, 0.56) 0 1px, transparent 1.6px),
    linear-gradient(rgba(140, 53, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 53, 255, 0.07) 1px, transparent 1px);
  opacity: 0.42;}body.piano-app-page[data-page="piano"] .app-shell {
  gap: 0.75rem;
  width: min(1200px, 100%);}body.piano-app-page[data-page="piano"] .app-shell::before {
  inset: -0.45rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .app-shell::before {
  border-color: rgba(140, 53, 255, 0.55);
  box-shadow:
    0 0 0 1px rgba(255, 79, 202, 0.16),
    0 0 34px rgba(67, 19, 121, 0.44);}body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .card,
body.piano-app-page[data-page="piano"] .progressions-panel,
body.piano-app-page[data-page="piano"] .section-heading-row-with-asset {
  position: relative;
  border-radius: 3px;
  clip-path: polygon(0 8px, 8px 8px, 8px 0, calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px, 100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%, 8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section,
body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel,
body.piano-app-page[data-page="piano"][data-theme="dark"] .section-heading-row-with-asset {
  border: 1px solid var(--pv-border);
  background:
    linear-gradient(180deg, rgba(15, 20, 39, 0.96), rgba(4, 7, 16, 0.98)),
    var(--pv-panel);
  box-shadow:
    0 0 0 1px rgba(167, 61, 255, 0.18),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 -18px 30px rgba(0, 0, 0, 0.25),
    0 0 18px rgba(167, 61, 255, 0.15);}body.piano-app-page[data-page="piano"] .site-header::before,
body.piano-app-page[data-page="piano"] .hero-section::before,
body.piano-app-page[data-page="piano"] .search-panel::before,
body.piano-app-page[data-page="piano"] .selector-panel::before,
body.piano-app-page[data-page="piano"] .card::before,
body.piano-app-page[data-page="piano"] .progressions-panel::before,
body.piano-app-page[data-page="piano"] .section-heading-row-with-asset::before {
  content: "";
  position: absolute;
  inset: 6px;
  z-index: 0;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .search-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .section-heading-row-with-asset::before {
  border: 1px solid rgba(167, 61, 255, 0.28);
  box-shadow: inset 0 0 14px rgba(167, 61, 255, 0.1);}body.piano-app-page[data-page="piano"] .site-header > *,
body.piano-app-page[data-page="piano"] .hero-section > *,
body.piano-app-page[data-page="piano"] .search-panel > *,
body.piano-app-page[data-page="piano"] .selector-panel > *,
body.piano-app-page[data-page="piano"] .card > *,
body.piano-app-page[data-page="piano"] .progressions-panel > *,
body.piano-app-page[data-page="piano"] .section-heading-row-with-asset > * {
  position: relative;
  z-index: 1;}body.piano-app-page[data-page="piano"] .site-header {
  align-items: center;
  gap: 1rem;
  min-height: 4.35rem;
  padding: 0.65rem 1.15rem;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header {
  background:
    radial-gradient(circle at 8% 40%, rgba(56, 217, 255, 0.08), transparent 11rem),
    linear-gradient(180deg, #070918, #03040c);}body.piano-app-page[data-page="piano"] .site-header::after {
  inset: auto 1rem 0;
  height: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header::after {
  background: linear-gradient(90deg, transparent, var(--pv-border-bright), var(--pv-cyan), var(--pv-accent-2), transparent);
  opacity: 0.85;}body.piano-app-page[data-page="piano"] .site-brand-lockup {
  gap: 0.9rem;
  min-width: 0;}body.piano-app-page[data-page="piano"] .site-logo {
  width: 3.2rem;
  height: 3rem;
  padding: 0.3rem;
  clip-path: polygon(0 6px, 6px 6px, 6px 0, calc(100% - 6px) 0, calc(100% - 6px) 6px, 100% 6px, 100% calc(100% - 6px), calc(100% - 6px) calc(100% - 6px), calc(100% - 6px) 100%, 6px 100%, 6px calc(100% - 6px), 0 calc(100% - 6px));}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-logo {
  border: 2px solid #5a2a91;
  background: #050813;
  box-shadow:
    inset 0 0 0 1px rgba(244, 236, 255, 0.62),
    0 0 16px var(--pv-glow);}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-logo span {
  background:
    linear-gradient(90deg, #f1e8f4 0 16%, #030511 16% 29%, #f1e8f4 29% 47%, #030511 47% 58%, #f1e8f4 58% 77%, #030511 77% 88%, #f1e8f4 88% 100%);
  box-shadow: inset 0 -0.48rem 0 rgba(127, 41, 232, 0.78);}body.piano-app-page[data-page="piano"] .site-brand {
  font-family: var(--font-brand);
  font-size: clamp(0.98rem, 1.55vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.04em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-brand {
  color: var(--pv-text);
  text-shadow: 0 0 8px rgba(244, 236, 255, 0.32);}body.piano-app-page[data-page="piano"] .site-section {
  padding-left: 1rem;
  font-family: var(--font-ui);
  font-size: clamp(1.05rem, 1.8vw, 1.55rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-section {
  border-left: 2px solid var(--pv-accent);
  color: var(--pv-accent);
  text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .site-actions {
  gap: 0.6rem;
  margin-left: auto;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-icon-button,
body.piano-app-page[data-page="piano"] .card-actions button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .related-chords-card button,
body.piano-app-page[data-page="piano"] .root-menu button,
body.piano-app-page[data-page="piano"] .notation-toggle button,
body.piano-app-page[data-page="piano"] .related-toggle {
  min-height: 2.45rem;
  padding: 0.55rem 0.85rem;
  border-radius: 2px;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: none;
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-toggle {
  border: 1px solid rgba(140, 53, 255, 0.68);
  background:
    linear-gradient(180deg, rgba(13, 17, 32, 0.98), rgba(5, 8, 19, 0.98));
  color: var(--pv-text);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    inset 0 -8px 12px rgba(0, 0, 0, 0.22),
    0 0 0 1px rgba(0, 0, 0, 0.7);}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .stat-label,
body.piano-app-page[data-page="piano"] .selector-label,
body.piano-app-page[data-page="piano"] .section-kicker,
body.piano-app-page[data-page="piano"] .keyboard-legend,
body.piano-app-page[data-page="piano"] .keyboard-shortcut {
  font-family: var(--font-brand);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.06em;}body.piano-app-page[data-page="piano"] .header-select {
  min-width: 9.25rem;
  padding-right: 2rem;}body.piano-app-page[data-page="piano"] .header-select {
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%;
  background-size: 0.34rem 0.34rem, 0.34rem 0.34rem;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select {
  background-color: var(--pv-button);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--pv-muted) 50%),
    linear-gradient(135deg, var(--pv-muted) 50%, transparent 50%);}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select option {
  background: var(--pv-panel-2);
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .header-icon-button {
  display: grid;
  place-items: center;
  width: 2.55rem;
  font-size: 1.35rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button {
  color: var(--pv-accent-2);
  text-shadow: 0 0 12px rgba(255, 79, 202, 0.72);}body.piano-app-page[data-page="piano"] .hero-section {
  display: block;
  min-height: 0;
  padding: 0.5rem;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section {
  background: #02030a;}body.piano-app-page[data-page="piano"] .hero-section::after {
  display: block;
  inset: 0.5rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::after {
  background:
    radial-gradient(circle at 50% 45%, transparent 48%, rgba(3, 3, 10, 0.34) 100%),
    linear-gradient(180deg, rgba(255, 79, 202, 0.08), transparent 34%, rgba(3, 3, 10, 0.34));}body.piano-app-page[data-page="piano"] .hero-image-frame {
  position: relative;
  z-index: 1;
  aspect-ratio: 3 / 1;
  min-height: clamp(15rem, 23vw, 20rem);
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-image-frame {
  border: 1px solid rgba(140, 53, 255, 0.62);
  background: #02030a;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    0 0 22px rgba(167, 61, 255, 0.2);}body.piano-app-page[data-page="piano"] .hero-image-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
  position: relative;
  z-index: 1;}body.piano-app-page[data-page="piano"] main {
  gap: 0.75rem;}body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .selector-panel {
  gap: 0.7rem;
  padding: 0.85rem;}body.piano-app-page[data-page="piano"] .search-field {
  position: relative;
  width: min(100%, 26rem);
  min-height: 2.8rem;
  padding: 0.52rem 0.65rem 0.52rem 2.75rem;
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field {
  border: 1px solid rgba(140, 53, 255, 0.75);
  background: rgba(4, 7, 16, 0.96);
  box-shadow: inset 0 0 16px rgba(0, 0, 0, 0.48);}body.piano-app-page[data-page="piano"] .search-field::before {
  left: 1rem;
  width: 0.75rem;
  height: 0.75rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field::before {
  border-color: var(--pv-muted);
  box-shadow: 0.42rem 0.42rem 0 -0.2rem var(--pv-muted);}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field:focus-within {
  border-color: var(--pv-cyan);
  box-shadow:
    0 0 0 2px rgba(56, 217, 255, 0.2),
    0 0 18px rgba(56, 217, 255, 0.14),
    inset 0 0 18px rgba(56, 217, 255, 0.08);}body.piano-app-page[data-page="piano"] .search-field input {
  font-family: var(--font-body);
  font-size: 1rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field input {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"][data-theme="dark"] .search-field input::placeholder {
  color: var(--pv-dim);}body.piano-app-page[data-page="piano"] .keyboard-shortcut {
  min-width: 3rem;
  padding: 0.3rem 0.42rem;
  border-radius: 2px;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-shortcut {
  border-color: rgba(140, 53, 255, 0.46);
  background: rgba(8, 11, 23, 0.95);
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
  gap: 0.55rem;
  justify-content: flex-start;}body.piano-app-page[data-page="piano"] .category-tabs button {
  min-width: 6.8rem;
  min-height: 2.4rem;
  padding-inline: 1rem;}body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
  flex: 1 1 6.1rem;
  min-width: 5.9rem;}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
  flex: 1 1 5.3rem;
  min-width: 5.1rem;}body.piano-app-page[data-page="piano"] .type-menu button {
  flex: 0 1 auto;
  min-width: 6.25rem;}body.piano-app-page[data-page="piano"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"] .type-menu button:hover,
body.piano-app-page[data-page="piano"] .root-menu button:hover,
body.piano-app-page[data-page="piano"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"] .header-control:hover,
body.piano-app-page[data-page="piano"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"] .card-actions button:hover,
body.piano-app-page[data-page="piano"] .related-chords-card button:hover {
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:hover {
  border-color: var(--pv-accent-2);
  background: linear-gradient(180deg, #1a1233, #080b18);
  color: var(--pv-text);
  box-shadow:
    0 0 15px rgba(255, 79, 202, 0.26),
    inset 0 0 18px rgba(167, 61, 255, 0.16);}body.piano-app-page[data-page="piano"] .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"] .type-menu button:focus-visible,
body.piano-app-page[data-page="piano"] .root-menu button:focus-visible,
body.piano-app-page[data-page="piano"] .notation-toggle button:focus-visible,
body.piano-app-page[data-page="piano"] .header-control:focus-visible,
body.piano-app-page[data-page="piano"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"] .card-actions button:focus-visible,
body.piano-app-page[data-page="piano"] .related-chords-card button:focus-visible,
body.piano-app-page[data-page="piano"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"] .repeat-button:focus-visible {
  outline-offset: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-control:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card-actions button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:focus-visible {
  border-color: var(--pv-cyan);
  outline: 2px solid #d98cff;
  box-shadow:
    0 0 0 3px rgba(217, 140, 255, 0.2),
    0 0 18px rgba(56, 217, 255, 0.24);}body.piano-app-page[data-page="piano"][data-theme="dark"] .category-tabs button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-selector .root-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .root-menu button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button[aria-pressed="true"] {
  border-color: var(--pv-border-bright);
  background: var(--pv-button-active);
  color: #fff;
  text-shadow: 0 0 8px rgba(244, 236, 255, 0.6);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 12px 18px rgba(255, 255, 255, 0.08),
    0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .selector-panel h2,
body.piano-app-page[data-page="piano"] .card h2,
body.piano-app-page[data-page="piano"] .card h3,
body.piano-app-page[data-page="piano"] .section-heading-row h2 {
  font-family: var(--font-ui);
  font-weight: 700;
  letter-spacing: 0.01em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel h2,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card h2,
body.piano-app-page[data-page="piano"][data-theme="dark"] .card h3,
body.piano-app-page[data-page="piano"][data-theme="dark"] .section-heading-row h2 {
  color: var(--pv-text);
  text-shadow: 0 0 8px rgba(167, 61, 255, 0.7);}body.piano-app-page[data-page="piano"] .selector-panel h2 {
  margin-bottom: 0.15rem;
  font-size: 1.15rem;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"] .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid button {
  text-transform: none;}body.piano-app-page[data-page="piano"] .selector-label,
body.piano-app-page[data-page="piano"] .stat-label,
body.piano-app-page[data-page="piano"] .section-kicker,
body.piano-app-page[data-page="piano"] .keyboard-legend {
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .stat-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .section-kicker,
body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--pv-accent);
  text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .chord-layout {
  grid-template-columns: minmax(330px, 0.42fr) minmax(0, 0.58fr);
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .chord-details-layout {
  grid-template-columns: minmax(0, 1fr) minmax(360px, 1fr);
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .card {
  padding: 1.05rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
  grid-template-columns: 9.25rem minmax(0, 1fr);
  align-items: start;
  gap: 0.9rem 1rem;
  min-height: 15.6rem;}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
  grid-column: 2;}body.piano-app-page[data-page="piano"] .chord-emblem {
  position: relative;
  display: grid;
  width: 8.85rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-emblem {
  border: 2px solid var(--pv-border-bright);}body.piano-app-page[data-page="piano"] .chord-emblem img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-emblem img {
  opacity: 0.52;
  filter: drop-shadow(0 0 16px rgba(167, 61, 255, 0.55));}body.piano-app-page[data-page="piano"] .chord-emblem .chord-symbol {
  position: relative;
  display: grid;
  width: auto;
  place-items: center;
  border: 0;
  background: transparent;
  font-family: var(--font-ui);
  font-size: clamp(3.6rem, 5.2vw, 4.8rem);
  font-weight: 700;
  line-height: 1;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-emblem .chord-symbol {
  color: #f8eaff;
  opacity: 1;
  text-shadow:
    0 0 18px rgba(167, 61, 255, 0.95),
    4px 4px 0 #4c1b86;}body.piano-app-page[data-page="piano"] [data-quality="Power"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Sus2"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Sus4"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Augmented"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="Diminished"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="maj7"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="m7"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality="7"] .chord-emblem .chord-symbol {
  padding: 0.75rem;
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"] .chord-heading-row {
  align-items: center;
  gap: 0.55rem;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
  font-size: clamp(2.2rem, 3.6vw, 2.85rem);
  line-height: 1;}body.piano-app-page[data-page="piano"] .card p {
  font-size: 1rem;
  line-height: 1.45;}body.piano-app-page[data-page="piano"][data-theme="dark"] .card p {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .card-actions {
  gap: 0.7rem;
  margin-top: 0.45rem;}body.piano-app-page[data-page="piano"] .card-actions button {
  min-width: 8.3rem;}body.piano-app-page[data-page="piano"] .piano-card {
  gap: 0.85rem;
  min-height: 15.6rem;}body.piano-app-page[data-page="piano"] .piano-card-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.05rem;
  align-items: start;}body.piano-app-page[data-page="piano"] .piano-card-header > div {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  margin-left: 0;
  padding: 0.36rem 0 0.62rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-card-header > div {
  border-bottom: 1px solid rgba(140, 53, 255, 0.22);}body.piano-app-page[data-page="piano"] .play-button,
body.piano-app-page[data-page="piano"] .repeat-button {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transition: none;}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button {
  width: var(--pv-main-action-size);
  height: var(--pv-main-action-size);}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"] .key-chord-grid .repeat-button,
body.piano-app-page[data-page="piano"] .progressions-panel .play-button,
body.piano-app-page[data-page="piano"] .progressions-panel .repeat-button {
  width: var(--pv-compact-action-size);
  height: var(--pv-compact-action-size);}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button::before {
  filter: drop-shadow(0 0 13px rgba(167, 61, 255, 0.55));}body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:hover::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .play-button:focus-visible::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:hover::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .repeat-button:focus-visible::before {
  filter: drop-shadow(0 0 17px rgba(255, 79, 202, 0.62));}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline],
body.piano-app-page[data-page="piano"] .scale-line,
body.piano-app-page[data-page="piano"] .progression-chords {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.08em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .formula-line,
body.piano-app-page[data-page="piano"][data-theme="dark"] [data-dynamic-chord-notes-inline],
body.piano-app-page[data-page="piano"][data-theme="dark"] .scale-line,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-chords {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .note-line {
  gap: 0.85rem;
  padding-bottom: 0.55rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .note-line {
  border-bottom: 1px solid rgba(140, 53, 255, 0.18);}body.piano-app-page[data-page="piano"] .keyboard {
  margin: 0;
  padding: 0.42rem;
  overflow-x: auto;
  border-radius: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard {
  border: 1px solid rgba(140, 53, 255, 0.32);
  background:
    linear-gradient(180deg, rgba(8, 11, 23, 0.72), rgba(2, 4, 12, 0.92));
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.42);}body.piano-app-page[data-page="piano"] .piano-svg {
  min-width: 550px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg {
  filter: drop-shadow(0 0 8px rgba(167, 61, 255, 0.22));}body.piano-app-page[data-page="piano"] .white-key {
  stroke-width: 1.7;}body.piano-app-page[data-page="piano"][data-theme="dark"] .white-key {
  fill: var(--pv-key-white);
  stroke: var(--pv-key-white-stroke);}body.piano-app-page[data-page="piano"] .black-key {
  stroke-width: 0.75;}body.piano-app-page[data-page="piano"][data-theme="dark"] .black-key {
  fill: var(--pv-key-black);
  stroke: #6d4a91;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.white-key,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active.black-key {
  fill: var(--pv-key-active);
  stroke: #d9bcff;
  filter: drop-shadow(0 0 4px rgba(167, 61, 255, 0.85));}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg.is-playing .key-active.white-key,
body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-svg.is-playing .key-active.black-key {
  fill: var(--pv-accent-2);}body.piano-app-page[data-page="piano"] .key-label,
body.piano-app-page[data-page="piano"] .black-label {
  font-family: var(--font-body);
  font-weight: 700;}body.piano-app-page[data-page="piano"] .key-label {
  font-size: 12px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-label {
  fill: #23182f;}body.piano-app-page[data-page="piano"] .black-label {
  font-size: 10px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .black-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active + .key-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-active + .black-label {
  fill: var(--pv-key-active-text);}body.piano-app-page[data-page="piano"] .keyboard-legend {
  display: inline-flex;
  justify-self: center;
  gap: 0.45rem;
  align-items: center;
  margin-top: 0.1rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .keyboard-legend::before {
  width: 0.8rem;
  height: 0.8rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend::before {
  border-color: rgba(140, 53, 255, 0.66);
  background: var(--pv-key-active);
  box-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .chord-info-card {
  grid-template-columns: 7rem minmax(0, 1fr);
  align-items: center;
  min-height: 12rem;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
  display: grid;
  min-height: 7rem;
  place-items: center;
  border: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .future-illustration-slot img {
  display: block;
  width: min(6.4rem, 100%);
  height: auto;}body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot img {
  filter: drop-shadow(0 0 14px rgba(167, 61, 255, 0.5));}body.piano-app-page[data-page="piano"] .related-card-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;}body.piano-app-page[data-page="piano"] .related-card-title img {
  width: 2.35rem;
  height: auto;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-card-title img {
  filter: drop-shadow(0 0 10px rgba(56, 217, 255, 0.56));}body.piano-app-page[data-page="piano"] .related-card-title h2,
body.piano-app-page[data-page="piano"] .chord-info-card h2 {
  margin: 0 0 0.4rem;
  text-transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-card-title h2,
body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-info-card h2 {
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .related-chords-list {
  gap: 0;}body.piano-app-page[data-page="piano"] .related-chords-list li {
  min-height: 3.7rem;
  padding: 0.65rem 0.2rem 0.65rem 0.75rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transition: none;
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li {
  border-bottom: 1px solid rgba(140, 53, 255, 0.18);}body.piano-app-page[data-page="piano"] .related-chords-list li:hover {
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li:hover {
  background: linear-gradient(90deg, rgba(167, 61, 255, 0.12), transparent);
  box-shadow: inset 3px 0 0 var(--pv-accent);}body.piano-app-page[data-page="piano"] .related-chords-list span:first-child {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  font-weight: 600;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list span:first-child {
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .related-chords-list span + span {
  font-family: var(--font-ui);
  font-weight: 500;
  letter-spacing: 0.12em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list span + span {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .related-chords-list li button {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.55rem;
  min-width: 2.55rem;
  padding: 0;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li button {
  color: transparent;}body.piano-app-page[data-page="piano"] .related-chords-list li button::before {
  content: "";
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 50%;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li button::before {
  border: 2px solid var(--pv-text);
  box-shadow: 0 0 8px var(--pv-glow);}body.piano-app-page[data-page="piano"] .related-chords-list li button::after {
  content: "";
  position: absolute;
  width: 0.42rem;
  height: 2px;
  transform: translate(0.48rem, 0.48rem) rotate(45deg);
  transform-origin: left center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-list li button::after {
  background: var(--pv-text);
  box-shadow: 0 0 8px var(--pv-glow);}body.piano-app-page[data-page="piano"] .related-toggle {
  width: auto;
  justify-self: start;
  margin-top: 0.85rem;}body.piano-app-page[data-page="piano"] .key-progressions-page {
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .key-selector-panel {
  gap: 0.75rem;}body.piano-app-page[data-page="piano"] .key-selector-panel .helper-text {
  margin: 0;
  font-size: 1rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-selector-panel .helper-text {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .key-summary-card {
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 9rem;
  overflow: hidden;
  text-align: left;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card {
  background:
    radial-gradient(circle at 8% 45%, rgba(56, 217, 255, 0.17), transparent 8rem),
    radial-gradient(circle at 88% 28%, rgba(167, 61, 255, 0.22), transparent 12rem),
    linear-gradient(180deg, rgba(15, 20, 39, 0.96), rgba(4, 7, 16, 0.98));}body.piano-app-page[data-page="piano"] .key-summary-card h2 {
  margin: 0;
  font-size: clamp(2.4rem, 4.4vw, 3.65rem);
  line-height: 1;}body.piano-app-page[data-page="piano"] .key-summary-icon {
  width: 3.6rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-icon {
  filter: drop-shadow(0 0 12px rgba(56, 217, 255, 0.58));}body.piano-app-page[data-page="piano"] .key-summary-sprite {
  width: min(7.5rem, 18vw);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-sprite {
  filter: drop-shadow(0 0 16px rgba(56, 217, 255, 0.32));}body.piano-app-page[data-page="piano"] .section-heading-row-with-asset {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  padding: 0.8rem 1rem;}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row-with-asset {
  border: 0;
  background: transparent;
  box-shadow: none;
  clip-path: none;}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row-with-asset::before {
  display: none;}body.piano-app-page[data-page="piano"] .section-heading-icon {
  width: 3rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .section-heading-icon {
  filter: drop-shadow(0 0 12px rgba(167, 61, 255, 0.42));}body.piano-app-page[data-page="piano"] .key-chords {
  display: grid;
  gap: 0.75rem;}body.piano-app-page[data-page="piano"] .key-chord-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card {
  display: grid;
  align-content: start;
  gap: 0.72rem;
  min-height: 14.2rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.6rem;
  align-items: center;
  margin: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title h3 {
  margin: 0;
  font-size: 1.25rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .keyboard,
body.piano-app-page[data-page="piano"] .progression-keyboard {
  padding: 0.28rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .piano-svg,
body.piano-app-page[data-page="piano"] .progression-keyboard .piano-svg {
  min-width: 0;}body.piano-app-page[data-page="piano"] .key-chord-grid .card > p {
  font-family: var(--font-ui);
  letter-spacing: 0.06em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .card > p {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .progressions-panel {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 1rem;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
  top: 0.75rem;
  right: 1rem;
  width: min(7.5rem, 16vw);}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel-sprite {
  opacity: 0.9;
  filter: drop-shadow(0 0 18px rgba(56, 217, 255, 0.22));}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
  padding-right: min(8.5rem, 17vw);}body.piano-app-page[data-page="piano"] .progressions-panel ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0;
  padding: 0;}body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.65rem;
  min-height: 4.2rem;
  padding: 0.65rem;
  border-radius: 2px;
  transition: none;
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li {
  border: 1px solid rgba(140, 53, 255, 0.28);
  background: linear-gradient(180deg, rgba(8, 12, 26, 0.88), rgba(3, 7, 18, 0.82));
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.25);}body.piano-app-page[data-page="piano"] .progressions-panel ol > li:hover,
body.piano-app-page[data-page="piano"] .progressions-panel ol > li.is-playing {
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li.is-playing {
  border-color: rgba(255, 79, 202, 0.66);
  box-shadow:
    0 0 16px rgba(255, 79, 202, 0.16),
    inset 0 0 18px rgba(167, 61, 255, 0.1);}body.piano-app-page[data-page="piano"] .progressions-panel span {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.06em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel span {
  color: var(--pv-accent);
  text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .progression-animation.is-active .progression-step {
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progression-animation.is-active .progression-step {
  border-color: var(--pv-accent-2);
  color: var(--pv-text);
  box-shadow: 0 0 0 2px rgba(255, 79, 202, 0.2), 0 0 16px rgba(255, 79, 202, 0.28);}body.piano-app-page[data-page="piano"] footer {
  padding: 0 0 0.25rem;
  font-size: 0.9rem;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] footer {
  color: var(--pv-dim);}@media (max-width: 980px) {body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .site-brand-lockup,
body.piano-app-page[data-page="piano"] .site-actions {
    width: 100%;}body.piano-app-page[data-page="piano"] .site-actions {
    margin-left: 0;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    aspect-ratio: 2.35 / 1;
    min-height: 13.5rem;}body.piano-app-page[data-page="piano"] .hero-image-frame img {
    object-position: 42% center;}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout,
body.piano-app-page[data-page="piano"] .key-summary-card {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .key-summary-sprite {
    display: none;}body.piano-app-page[data-page="piano"] .progressions-panel ol {
    grid-template-columns: 1fr;}
}@media (max-width: 620px) {body.piano-app-page[data-page="piano"] {
    --pv-main-action-size: 5.5rem;
    padding: 0.55rem;}body.piano-app-page[data-page="piano"] .site-header,
body.piano-app-page[data-page="piano"] .search-panel,
body.piano-app-page[data-page="piano"] .instrument-switcher-panel,
body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"] .card,
body.piano-app-page[data-page="piano"] .progressions-panel {
    padding: 0.75rem;}body.piano-app-page[data-page="piano"] .site-logo {
    width: 2.8rem;
    height: 2.55rem;}body.piano-app-page[data-page="piano"] .site-brand-lockup {
    gap: 0.55rem;}body.piano-app-page[data-page="piano"] .site-brand {
    font-size: 0.82rem;}body.piano-app-page[data-page="piano"] .site-section {
    width: 100%;
    margin-left: 3.35rem;
    padding-left: 0;
    border-left: 0;
    font-size: 1.1rem;}body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-control {
    flex: 1 1 8rem;
    min-width: 0;}body.piano-app-page[data-page="piano"] .hero-section {
    padding: 0.38rem;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    aspect-ratio: 1.6 / 1;
    min-height: 12rem;}body.piano-app-page[data-page="piano"] .hero-image-frame img {
    object-position: 33% center;}body.piano-app-page[data-page="piano"] .search-field {
    width: 100%;}body.piano-app-page[data-page="piano"] .instrument-switcher,
body.piano-app-page[data-page="piano"] .instrument-switcher-button {
    width: calc(100% - 2.5rem);}body.piano-app-page[data-page="piano"] .instrument-switcher-button {
    width: 100%;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
    flex: 1 1 4.9rem;
    min-width: 4.8rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .piano-card-header,
body.piano-app-page[data-page="piano"] .piano-card-header > div,
body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .section-heading-row-with-asset,
body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .chord-emblem {
    width: 7.4rem;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
    font-size: 2rem;}body.piano-app-page[data-page="piano"] .piano-svg {
    min-width: 480px;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
    justify-self: start;}body.piano-app-page[data-page="piano"] .related-chords-list li {
    align-items: stretch;
    flex-direction: column;}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
    padding-right: 0;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
    display: none;}
}/* Piano compact layout pass.
   Stacking order: hero artwork = 1,
header/search overlays = 3,
interactive controls = 4. */
body.piano-app-page[data-page="piano"][data-theme="dark"] {
  --pv-chord-emblem-size: clamp(4.9rem, 6.3vw, 5.775rem);
  --pv-main-action-size: var(--pv-chord-emblem-size);
  --pv-compact-action-size: 2.45rem;
  padding: clamp(0.5rem, 0.8vw, 0.75rem);
}body.piano-app-page[data-page="piano"] .app-shell {
  position: relative;
  gap: 0.5rem;
  width: min(1200px, 100%);}body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] .chord-display,
body.piano-app-page[data-page="piano"] .key-progressions-page {
  gap: 0.5rem;}body.piano-app-page[data-page="piano"] .site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 3;
  min-height: 0;
  height: clamp(3.5rem, 4.4vw, 4.25rem);
  padding: 0.55rem 1rem;
  overflow: visible;
  background: transparent;
  border: 0;
  box-shadow: none;
  clip-path: none;}body.piano-app-page[data-page="piano"] .site-header::before {
  display: none;}body.piano-app-page[data-page="piano"] .site-header::after {
  display: none;}body.piano-app-page[data-page="piano"] .site-brand-lockup {
  flex: 1 1 auto;
  flex-wrap: nowrap;
  margin-top: 0.5rem;}body.piano-app-page[data-page="piano"] .site-logo {
  width: clamp(2.65rem, 3.4vw, 3.1rem);
  height: clamp(2.45rem, 3.2vw, 2.95rem);}body.piano-app-page[data-page="piano"] .site-brand {
  line-height: 1.1;}body.piano-app-page[data-page="piano"] .site-section {
  line-height: 1.05;}body.piano-app-page[data-page="piano"][data-theme="dark"] .site-section {
  border-left-color: #ff68c8;
  color: #ff68c8;}body.piano-app-page[data-page="piano"] .site-actions {
  position: relative;
  z-index: 4;
  flex: 0 0 auto;
  flex-wrap: nowrap;
  gap: 0.55rem;
  margin-top: 0.5rem;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select {
  min-height: clamp(2.25rem, 3vw, 2.55rem);
  min-width: clamp(8rem, 10vw, 9.5rem);
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;}body.piano-app-page[data-page="piano"] .header-icon-button {
  width: clamp(2.35rem, 3vw, 2.55rem);
  min-height: clamp(2.25rem, 3vw, 2.55rem);}body.piano-app-page[data-page="piano"] .hero-section {
  z-index: 1;
  margin: 0;
  padding: 0.45rem;
  overflow: visible;}body.piano-app-page[data-page="piano"] .hero-section::after {
  inset: 0.45rem;}body.piano-app-page[data-page="piano"] .hero-image-frame {
  aspect-ratio: auto;
  height: clamp(13.25rem, 22vw, 18.75rem);
  min-height: 0;}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
  object-position: center 49%;}body.piano-app-page[data-page="piano"] .search-panel {
  z-index: 3;
  gap: 0.48rem;
  margin-top: -2.95rem;
  padding: 0.56rem 0.72rem 0.68rem;
  overflow: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
  clip-path: none;}body.piano-app-page[data-page="piano"] .search-panel::before {
  display: none;}body.piano-app-page[data-page="piano"] .search-field {
  width: min(100%, 26.5rem);
  min-height: 2.5rem;
  padding-top: 0.42rem;
  padding-bottom: 0.42rem;}body.piano-app-page[data-page="piano"] .instrument-switcher-panel {
  z-index: 3;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  margin-top: -2.95rem;
  margin-bottom: -0.3rem;
  padding: 0.56rem 0.72rem 0.68rem;
  overflow: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
  clip-path: none;}body.piano-app-page[data-page="piano"] .instrument-switcher {
  margin-right: 2.5rem;}body.piano-app-page[data-page="piano"] .instrument-switcher-panel::before {
  display: none;}body.piano-app-page[data-page="piano"] .instrument-switcher-button {
  min-width: 12.5rem;
  min-height: 2.5rem;
  font-family: var(--font-brand);
  font-size: clamp(0.62rem, 1.2vw, 0.78rem);
  line-height: 1.35;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button {
  border-color: #ff68c8;
  color: #190017;
  background: linear-gradient(180deg, #ff9cdc 0%, #ff48ba 55%, #c91592 100%);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.38) inset,
    0 0 1.15rem rgb(255 72 186 / 0.38);}body.piano-app-page[data-page="piano"] .instrument-switcher-button:hover,
body.piano-app-page[data-page="piano"] .instrument-switcher-button:focus-visible,
body.piano-app-page[data-page="piano"] .instrument-switcher-button[aria-expanded="true"] {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-switcher-button[aria-expanded="true"] {
  border-color: #fff;
  color: #120011;
  background: linear-gradient(180deg, #ffc2eb 0%, #ff71cb 58%, #e92bb0 100%);}body.piano-app-page[data-page="piano"] .instrument-menu-popover {
  min-width: 12.5rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-menu-popover {
  border-color: #ff68c8;
  background: rgb(9 2 24 / 0.96);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.18) inset,
    0 1.1rem 2.2rem rgb(0 0 0 / 0.54),
    0 0 1.25rem rgb(255 72 186 / 0.25);}body.piano-app-page[data-page="piano"] .instrument-menu-popover a,
body.piano-app-page[data-page="piano"] .instrument-menu-popover button {
  font-family: var(--font-body);
  font-size: 0.62rem;
  line-height: 1.5;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
  gap: 0.36rem;}body.piano-app-page[data-page="piano"] .category-tabs {
  border: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .chord-type-selector .category-tabs {
  margin-bottom: 0.08rem;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button,
body.piano-app-page[data-page="piano"] .notation-toggle button,
body.piano-app-page[data-page="piano"] .card-actions button,
body.piano-app-page[data-page="piano"] .related-chords-card button {
  min-height: 2.25rem;
  padding-top: 0.38rem;
  padding-bottom: 0.38rem;}body.piano-app-page[data-page="piano"] .category-tabs button {
  font-family: var(--font-ui);
  font-size: 1rem;
  min-width: 6.25rem;}body.piano-app-page[data-page="piano"] .selector-panel {
  position: relative;
  z-index: 12;
  gap: 0.42rem;
  padding: 0.6rem 0.72rem 0.48rem;
  clip-path: polygon(0 8px, 8px 8px, 8px 0, calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px, 100% calc(100% + 1.6rem), 0 calc(100% + 1.6rem));}body.piano-app-page[data-page="piano"] .selector-panel h2,
body.piano-app-page[data-page="piano"] .selector-label {
  margin-bottom: 0;}body.piano-app-page[data-page="piano"] .selector-group {
  gap: 0.32rem;}body.piano-app-page[data-page="piano"] .chord-type-selector {
  margin-bottom: 0;}body.piano-app-page[data-page="piano"] .type-menu {
  margin-bottom: 0;}body.piano-app-page[data-page="piano"] .root-selector .root-menu,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
  justify-content: flex-start;
  margin: 0;}body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
  flex: 0 0 4rem;
  width: 4rem;
  min-width: 4rem;
  padding-inline: 0.35rem;}body.piano-app-page[data-page="piano"] .type-menu button {
  flex: 0 0 6.25rem;
  width: 6.25rem;
  min-width: 6.25rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button.is-active {
  border-color: rgb(85 0 197 / 68%);
  background: linear-gradient(180deg, #50188f 0%, #20043b 100%);}body.piano-app-page[data-page="piano"] .notation-toggle {
  position: static;
  align-self: center;
  justify-self: end;
  margin: 0 0 0 auto;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .notation-toggle button {
  display: inline-grid;
  width: 2.35rem;
  min-width: 2.35rem;
  height: 2.35rem;
  min-height: 2.35rem;
  place-items: center;
  padding: 0;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 1.25rem;
  line-height: 1;}body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button {
  border: 1px solid #ff68c8;
  color: var(--pv-accent-2);
  background: linear-gradient(180deg, #170d28 0%, #080a17 100%);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.08) inset,
    0 0 0.75rem rgb(255 72 186 / 0.2);}body.piano-app-page[data-page="piano"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"] .notation-toggle button:focus-visible,
body.piano-app-page[data-page="piano"] .notation-toggle button[aria-pressed="true"] {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button[aria-pressed="true"] {
  border-color: #f02eb8;
  color: #120011;
  background: #f02eb8;
  text-shadow: none;
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.55) inset,
    0 0 1.05rem rgb(255 104 200 / 0.55);}body.piano-app-page[data-page="piano"] .chord-layout {
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 0.85rem;
  align-items: stretch;}body.piano-app-page[data-page="piano"] .chord-details-layout {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.85rem;
  align-items: stretch;}body.piano-app-page[data-page="piano"] .card {
  padding: 0.9rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .piano-card {
  min-height: clamp(13.75rem, 15.6vw, 15.35rem);}body.piano-app-page[data-page="piano"] .chord-summary-card {
  grid-template-columns: var(--pv-chord-emblem-size) minmax(0, 1fr);
  align-content: center;
  gap: 0.55rem 0.9rem;}body.piano-app-page[data-page="piano"] .chord-emblem {
  width: var(--pv-chord-emblem-size);
  align-self: center;}body.piano-app-page[data-page="piano"] .chord-heading-row {
  gap: 0.42rem;
  align-self: end;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
  font-size: clamp(1.9rem, 3vw, 2.55rem);}body.piano-app-page[data-page="piano"] .chord-summary-card > p {
  max-width: 28rem;
  font-size: 0.96rem;
  line-height: 1.34;}body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
  align-self: end;
  gap: 0.6rem;
  margin-top: 0.2rem;}body.piano-app-page[data-page="piano"] .card-actions button {
  min-width: 7rem;}body.piano-app-page[data-page="piano"] .piano-card {
  grid-template-columns: var(--pv-chord-emblem-size) minmax(0, 1fr);
  align-content: center;
  gap: 0.45rem 0.95rem;}body.piano-app-page[data-page="piano"] .piano-card-header {
  display: contents;}body.piano-app-page[data-page="piano"] .piano-card .play-button {
  grid-column: 1;
  grid-row: 1 / span 3;
  align-self: center;
  justify-self: center;
  width: var(--pv-main-action-size);
  height: var(--pv-main-action-size);}body.piano-app-page[data-page="piano"] .piano-card-header > div {
  grid-column: 2;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: 0.55rem;
  padding: 0 0 0.38rem;}body.piano-app-page[data-page="piano"] .note-line {
  grid-column: 2;
  gap: 0.55rem;
  padding-bottom: 0.36rem;}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline] {
  font-size: clamp(1rem, 1.35vw, 1.12rem);}body.piano-app-page[data-page="piano"] .piano-card .keyboard {
  grid-column: 2;
  max-height: 7.7rem;
  padding: 0.3rem;}body.piano-app-page[data-page="piano"] .piano-card .piano-svg {
  min-width: min(100%, 520px);
  max-height: 7rem;}body.piano-app-page[data-page="piano"] .keyboard-legend {
  grid-column: 2;
  margin-top: 0;}body.piano-app-page[data-page="piano"] .piano-card .keyboard-legend-row {
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  width: 100%;}body.piano-app-page[data-page="piano"] .keyboard-legend-row .keyboard-legend {
  justify-self: start;}body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .related-chords-card {
  min-height: clamp(10.25rem, 12.5vw, 12rem);}body.piano-app-page[data-page="piano"] .chord-info-card {
  grid-template-columns: clamp(5.6rem, 7.2vw, 6.8rem) minmax(0, 1fr);
  gap: 0.85rem;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
  min-height: 5.8rem;}body.piano-app-page[data-page="piano"] .future-illustration-slot img {
  width: min(5.8rem, 100%);}body.piano-app-page[data-page="piano"] .chord-info-card h2,
body.piano-app-page[data-page="piano"] .related-card-title h2 {
  margin-bottom: 0.25rem;
  font-size: clamp(1.25rem, 1.8vw, 1.65rem);}body.piano-app-page[data-page="piano"] .chord-info-card p {
  line-height: 1.32;}body.piano-app-page[data-page="piano"] .related-card-title {
  gap: 0.55rem;
  margin-bottom: 0.35rem;}body.piano-app-page[data-page="piano"] .related-card-title img {
  width: 2rem;}body.piano-app-page[data-page="piano"] .related-chords-list li {
  min-height: 2.9rem;
  padding: 0.42rem 0.2rem 0.42rem 0.65rem;}body.piano-app-page[data-page="piano"] .related-chords-list span:first-child {
  font-size: 1.02rem;}body.piano-app-page[data-page="piano"] .related-chords-list span + span {
  font-size: 0.95rem;}body.piano-app-page[data-page="piano"] .related-chords-list li button {
  width: 2.25rem;
  min-width: 2.25rem;
  min-height: 2.25rem;}body.piano-app-page[data-page="piano"] .related-toggle {
  margin-top: 0.45rem;}body.piano-app-page[data-page="piano"] footer {
  display: none;}body.piano-app-page[data-page="piano"] .key-selector-panel {
  gap: 0.45rem;
  padding: 0.65rem 0.75rem;}body.piano-app-page[data-page="piano"] .key-selector-panel .helper-text {
  font-size: 0.95rem;}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
  flex: 1 1 0;
  min-width: 4.65rem;}body.piano-app-page[data-page="piano"] .key-summary-card {
  min-height: clamp(7.4rem, 9vw, 8.7rem);
  padding: 0.85rem;}body.piano-app-page[data-page="piano"] .key-summary-card h2 {
  font-size: clamp(2rem, 3.5vw, 3.1rem);}body.piano-app-page[data-page="piano"] .key-summary-icon {
  width: 3rem;}body.piano-app-page[data-page="piano"] .key-summary-sprite {
  width: min(6.2rem, 13vw);}body.piano-app-page[data-page="piano"] .section-heading-row-with-asset {
  gap: 0.55rem;
  margin-bottom: 0.45rem;
  padding: 0.62rem 0.8rem;}body.piano-app-page[data-page="piano"] .section-heading-icon {
  width: 2.4rem;}body.piano-app-page[data-page="piano"] .key-chords {
  gap: 0.45rem;}body.piano-app-page[data-page="piano"] .key-chord-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.6rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card {
  gap: 0.48rem;
  min-height: 12.5rem;
  padding: 0.72rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title h3 {
  font-size: 1.08rem;}body.piano-app-page[data-page="piano"] .progressions-panel {
  gap: 0.55rem;
  padding: 0.8rem;}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
  padding-right: min(7rem, 14vw);}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
  width: min(6.2rem, 13vw);}body.piano-app-page[data-page="piano"] .progressions-panel ol {
  gap: 0.55rem;}body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
  min-height: 3.55rem;
  padding: 0.52rem;}body.piano-app-page[data-page="piano"] .progressions-panel span,
body.piano-app-page[data-page="piano"] .progression-chords {
  font-size: 1rem;}@media (min-width: 1100px) {body.piano-app-page[data-page="piano"] .site-header {
    flex-wrap: nowrap;}body.piano-app-page[data-page="piano"] .site-actions {
    margin-left: auto;}body.piano-app-page[data-page="piano"] .search-panel {
    grid-template-columns: 26.5rem minmax(0, 1fr);
    align-items: end;}body.piano-app-page[data-page="piano"] .search-field {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .search-panel > .category-tabs {
    grid-column: 1 / -1;}
}@media (max-width: 1180px) and (min-width: 981px) {body.piano-app-page[data-page="piano"] .site-brand {
    font-size: 0.9rem;}body.piano-app-page[data-page="piano"] .site-section {
    font-size: 1rem;}body.piano-app-page[data-page="piano"] .header-select {
    min-width: 7.75rem;}

}@media (max-width: 980px) {body.piano-app-page[data-page="piano"] .site-header {
    position: relative;
    inset: auto;
    height: auto;}body.piano-app-page[data-page="piano"] .site-actions {
    flex-wrap: wrap;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    height: clamp(12rem, 35vw, 17rem);}body.piano-app-page[data-page="piano"] .search-panel {
    margin-top: -1.1rem;}body.piano-app-page[data-page="piano"] .instrument-switcher-panel {
    margin-top: -1.1rem;
    margin-bottom: -0.3rem;}

}@media (max-width: 620px) {body.piano-app-page[data-page="piano"] {
    padding: 0.5rem;}body.piano-app-page[data-page="piano"] .site-header {
    height: auto;
    padding: 0.7rem;}body.piano-app-page[data-page="piano"] .site-actions {
    flex-wrap: wrap;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    height: clamp(10.5rem, 58vw, 13rem);}body.piano-app-page[data-page="piano"] .search-panel {
    margin-top: -0.65rem;}body.piano-app-page[data-page="piano"] .instrument-switcher-panel {
    margin-top: -0.65rem;
    margin-bottom: -0.3rem;}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout,
body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .chord-info-card {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .related-chords-card {
    min-height: 0;}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions,
body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card-header > div,
body.piano-app-page[data-page="piano"] .note-line,
body.piano-app-page[data-page="piano"] .piano-card .keyboard,
body.piano-app-page[data-page="piano"] .keyboard-legend {
    grid-column: 1;
    grid-row: auto;}body.piano-app-page[data-page="piano"] .piano-card .piano-svg {
    min-width: 480px;
    max-height: none;}body.piano-app-page[data-page="piano"] .key-chord-grid {
    grid-template-columns: 1fr;}
}/* Piano shared lower dashboard layout and Dark Theme visuals */
body.piano-app-page[data-page="piano"] .chord-layout {
  position: relative;
  z-index: 1;
  grid-template-columns: minmax(19rem, 0.46fr) minmax(0, 0.54fr);
  gap: 0.85rem;
  align-items: stretch;}body.piano-app-page[data-page="piano"] .chord-left-column {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 0.85rem;
  min-width: 0;
  min-height: 0;
  overflow: hidden;}body.piano-app-page[data-page="piano"] .chord-details-layout {
  grid-template-columns: 1fr;
  margin-top: 0.35rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"] .chord-info-card {
  min-height: 0;
  padding: 0.82rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
  grid-template-columns: clamp(5.35rem, 7.6vw, 6.8rem) minmax(0, 1fr);
  align-content: center;
  align-items: center;
  gap: 0.45rem 0.85rem;}body.piano-app-page[data-page="piano"] .chord-emblem {
  grid-row: 1 / span 3;
  width: clamp(5.35rem, 7.6vw, 6.8rem);
  align-self: center;}body.piano-app-page[data-page="piano"] .chord-symbol {
  width: 100%;
  min-height: clamp(5.35rem, 7.6vw, 6.8rem);
  padding: 0.38rem;
  overflow: hidden;
  overflow-wrap: anywhere;
  text-align: center;
  font-size: 2rem;
  line-height: 0.9;}body.piano-app-page[data-page="piano"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality] .chord-emblem .chord-symbol {
  font-size: 2rem;}body.piano-app-page[data-page="piano"] .chord-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.45rem;
  align-self: end;
  width: 100%;
  min-width: 0;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
  min-width: 0;
  font-size: clamp(1.55rem, 2.8vw, 2.45rem);
  line-height: 1;
  overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"] .chord-summary-card > p {
  max-width: none;
  margin: 0;
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  line-height: 1.34;}body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0;}body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions button {
  min-width: 0;
  min-height: 2rem;
  padding: 0.28rem 0.55rem;}body.piano-app-page[data-page="piano"] .chord-info-card {
  grid-template-columns: clamp(4.6rem, 6.2vw, 5.6rem) minmax(0, 1fr);
  gap: 0.72rem;
  align-items: center;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card {
  grid-template-columns: 3.6rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  min-height: 0;
  padding: 0.68rem 0.82rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card > div:last-child {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  min-width: 0;}body.piano-app-page[data-page="piano"] .future-illustration-slot {
  min-height: 4.7rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot {
  min-height: 3.2rem;}body.piano-app-page[data-page="piano"] .future-illustration-slot img {
  width: min(4.9rem, 100%);}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot img {
  width: min(3.2rem, 100%);}body.piano-app-page[data-page="piano"] .chord-info-card h2 {
  margin-bottom: 0.18rem;
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card h2 {
  flex: 0 0 auto;
  margin: 0;
  font-size: clamp(1rem, 1.35vw, 1.22rem);
  white-space: nowrap;}body.piano-app-page[data-page="piano"] .chord-info-card p {
  margin: 0;
  font-size: clamp(0.9rem, 1.15vw, 1rem);
  line-height: 1.34;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card p {
  min-width: 0;
  font-size: clamp(0.86rem, 1vw, 0.96rem);
  line-height: 1.25;}body.piano-app-page[data-page="piano"] .piano-card {
  display: grid !important;
  grid-template-columns: 1fr !important;
  grid-template-rows: auto auto auto;
  align-content: stretch;
  gap: 0.38rem;}body.piano-app-page[data-page="piano"] .piano-card-header {
  display: flex !important;
  flex-wrap: nowrap;
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  gap: 0.48rem;
  align-items: center;
  width: 100%;
  min-width: 0;
  padding-bottom: 0.38rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-card-header {
  border-bottom: 1px solid rgba(187, 69, 255, 0.68);}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button {
  grid-column: auto;
  grid-row: auto;
  flex: 0 0 auto;
  align-self: center;
  justify-self: start;
  width: clamp(3.1rem, 4.5vw, 4.15rem);
  height: clamp(3.1rem, 4.5vw, 4.15rem);
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-card .repeat-button {
  border-color: var(--pv-border-bright);
  background:
    radial-gradient(circle at 48% 45%, rgba(255, 255, 255, 0.12), transparent 1.45rem),
    linear-gradient(180deg, #3c166e, #10081f);
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.08), 0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .piano-metrics {
  display: grid;
  grid-column: 3;
  grid-template-columns: 1fr;
  gap: 0;
  width: 100%;
  min-width: 0;
  margin-left: 0;
  padding: 0;
  border-bottom: 0;}body.piano-app-page[data-page="piano"] .piano-card-header > .piano-metrics {
  flex: 1 1 18rem;
  grid-column: auto;
  grid-template-columns: 1fr;
  gap: 0;
  width: 100%;
  min-width: 18rem;
  margin-left: 0;
  padding: 0;
  border-bottom: 0;}body.piano-app-page[data-page="piano"] .piano-metric-row,
body.piano-app-page[data-page="piano"] .note-line {
  display: grid;
  grid-template-columns: minmax(4.7rem, auto) minmax(0, 1fr);
  align-items: baseline;
  gap: 0.55rem;
  min-width: 0;}body.piano-app-page[data-page="piano"] .piano-metric-row {
  padding-bottom: 0.28rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-metric-row {
  border-bottom: 1px solid rgba(187, 69, 255, 0.72);}body.piano-app-page[data-page="piano"] .note-line {
  grid-column: auto;
  padding-top: 0.28rem;
  padding-bottom: 0;
  border-bottom: 0;}body.piano-app-page[data-page="piano"] .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"] .note-line .stat-label {
  margin: 0;
  font-size: clamp(0.82rem, 1.18vw, 1.02rem);
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .note-line .stat-label {
  color: var(--pv-accent);}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline] {
  min-width: 0;
  margin: 0;
  font-size: clamp(0.82rem, 1.05vw, 0.96rem);
  letter-spacing: 0;
  line-height: 1.2;
  overflow-wrap: normal;}body.piano-app-page[data-page="piano"] .keyboard-legend {
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  justify-self: start;
  margin: 0.05rem 0 0;
  font-size: clamp(0.88rem, 1.25vw, 1.05rem);
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .keyboard-legend {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .keyboard-legend::before {
  width: 0.58rem;
  height: 0.58rem;}body.piano-app-page[data-page="piano"] .piano-card .keyboard {
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  width: 100%;
  max-height: none;
  margin: 0;
  padding: 0.45rem;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .piano-card .keyboard {
  border-color: rgba(168, 70, 255, 0.62);
  box-shadow: inset 0 0 18px rgba(168, 70, 255, 0.1);}body.piano-app-page[data-page="piano"] .piano-card .piano-svg {
  display: block;
  width: 100%;
  min-width: 0;
  max-height: none;
  height: auto;}body.piano-app-page[data-page="piano"] .related-chords-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.32rem;}body.piano-app-page[data-page="piano"] .related-chords-list li {
  min-width: 0;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-card {
  display: grid;
  align-content: start;
  gap: 0.34rem;
  min-height: 0;
  overflow: hidden;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.34rem;
  align-items: center;
  margin-bottom: 0;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title img {
  width: 1.55rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title h2 {
  min-width: 0;
  margin: 0;
  font-size: clamp(0.95rem, 1.35vw, 1.12rem);}body.piano-app-page[data-page="piano"] .related-carousel-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.22rem;
  justify-self: end;}body.piano-app-page[data-page="piano"] .related-carousel-button {
  display: inline-grid;
  place-items: center;
  width: 1.55rem;
  min-width: 1.55rem;
  min-height: 1.55rem;
  padding: 0;
  line-height: 1;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-carousel-button {
  background: #000;}body.piano-app-page[data-page="piano"] .related-carousel-button:disabled {
  cursor: default;
  box-shadow: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-carousel-button:disabled {
  opacity: 0.38;}body.piano-app-page[data-page="piano"] .related-page-counter {
  min-width: 2rem;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-page-counter {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list li {
  min-height: 2.3rem;
  padding: 0.28rem 0.12rem 0.28rem 0.42rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list span:first-child {
  font-size: 1.2rem;
  line-height: 1;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list span + span {
  font-size: 1rem;
  line-height: 1;
  letter-spacing: 0.04em;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list li button {
  width: 1.72rem;
  min-width: 1.72rem;
  min-height: 1.72rem;}body.piano-app-page[data-page="piano"] .related-chords-card button {
  padding: 0.55rem 0.85rem;
  border-radius: 2px;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: none;
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card button {
  border: 1px solid rgba(140, 53, 255, 0.68);
  background: linear-gradient(180deg, rgba(13, 17, 32, 0.98), rgba(5, 8, 19, 0.98));
  color: var(--pv-text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.035), inset 0 -8px 12px rgba(0, 0, 0, 0.22), 0 0 0 1px rgba(0, 0, 0, 0.7);}body.piano-app-page[data-page="piano"] .related-chords-card .related-chords-list li button {
  width: 1.72rem;
  min-width: 1.72rem;
  min-height: 1.72rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .related-chords-card .related-chords-list li button {
  border-color: rgba(167, 61, 255, 0.75);
  background: rgba(11, 8, 28, 0.92);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 0 10px rgba(167, 61, 255, 0.16);}@media (max-width: 900px) {body.piano-app-page[data-page="piano"] .chord-layout {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-left-column {
    grid-template-rows: auto;}
}@media (max-width: 620px) {body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .piano-card {
    padding: 0.72rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-emblem,
body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions {
    grid-column: 1;
    grid-row: auto;}body.piano-app-page[data-page="piano"] .chord-emblem {
    width: 5rem;}body.piano-app-page[data-page="piano"] .chord-symbol {
    min-height: 5rem;}body.piano-app-page[data-page="piano"] .chord-heading-row {
    grid-template-columns: minmax(0, 1fr) auto;}body.piano-app-page[data-page="piano"] .piano-card-header {
    flex-wrap: wrap;}body.piano-app-page[data-page="piano"] .piano-metrics {
    grid-column: 1 / -1;}body.piano-app-page[data-page="piano"] .piano-card-header > .piano-metrics {
    flex-basis: 100%;
    grid-column: 1 / -1;
    min-width: 0;}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button {
    width: 3rem;
    height: 3rem;}body.piano-app-page[data-page="piano"] .piano-metric-row,
body.piano-app-page[data-page="piano"] .note-line {
    grid-template-columns: 4rem minmax(0, 1fr);
    gap: 0.38rem;}body.piano-app-page[data-page="piano"] .piano-card .piano-svg {
    min-width: 0;
    max-height: none;}body.piano-app-page[data-page="piano"] .related-chords-list {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title {
    grid-template-columns: auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .related-carousel-controls {
    grid-column: 1 / -1;
    justify-self: start;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card {
    grid-template-columns: 3.2rem minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card > div:last-child {
    display: grid;
    gap: 0.18rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card h2 {
    white-space: normal;}body.piano-app-page[data-page="piano"] .notation-toggle button {
    width: 2.2rem;
    min-width: 2.2rem;
    height: 2.2rem;
    min-height: 2.2rem;}
}/* Homepage viewport dashboard */
body.home-dashboard-page {
  overflow-x: hidden;
}body.piano-app-page[data-page="piano"][data-theme="dark"] {
  background: linear-gradient(180deg, #040312 0%, #020109 50%, #000003 100%);}body.home-dashboard-page *,
body.home-dashboard-page *::before,
body.home-dashboard-page *::after {
  box-sizing: border-box;
}body.piano-app-page[data-page="piano"] .chord-workspace,
body.piano-app-page[data-page="piano"] .chord-display {
  margin-bottom: 0;}@media (min-width: 981px) {body.piano-app-page[data-page="piano"] {
    --home-dashboard-gap: clamp(0.32rem, 0.55vw, 0.48rem);
    --home-dashboard-padding: clamp(0.38rem, 0.65vw, 0.58rem);
    --home-chord-details-height: clamp(5.25rem, 9.5svh, 5.85rem);
    height: 100svh;
    min-height: 100svh;
    padding: var(--home-dashboard-padding);
    overflow: hidden;}body.piano-app-page[data-page="piano"]::before {
    inset: 0;}body.piano-app-page[data-page="piano"] .app-shell {
    grid-template-rows: minmax(0, 1fr);
    gap: var(--home-dashboard-gap);
    width: min(1180px, 100%);
    height: calc(100svh - (var(--home-dashboard-padding) * 2));
    min-height: 0;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .app-shell::before {
    inset: 0;}body.piano-app-page[data-page="piano"] main {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: var(--home-dashboard-gap);
    min-height: 0;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .site-header {
    height: clamp(3.05rem, 6.1svh, 3.55rem);
    padding: 0.36rem 0.72rem;}body.piano-app-page[data-page="piano"] .site-logo {
    width: clamp(2.25rem, 3vw, 2.7rem);
    height: clamp(2.1rem, 2.8vw, 2.48rem);}body.piano-app-page[data-page="piano"] .site-brand {
    font-size: clamp(0.84rem, 1.28vw, 1.08rem);}body.piano-app-page[data-page="piano"] .site-section {
    font-size: clamp(0.95rem, 1.45vw, 1.25rem);}body.piano-app-page[data-page="piano"] .site-actions {
    gap: 0.42rem;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select {
    min-width: clamp(7.4rem, 9vw, 8.6rem);}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select,
body.piano-app-page[data-page="piano"] .header-icon-button {
    min-height: clamp(2rem, 4.4svh, 2.32rem);
    padding-top: 0.32rem;
    padding-bottom: 0.32rem;}body.piano-app-page[data-page="piano"] .header-icon-button {
    width: clamp(2.05rem, 2.7vw, 2.32rem);
    min-width: clamp(2.05rem, 2.7vw, 2.32rem);}body.piano-app-page[data-page="piano"] .hero-section {
    padding: 0.36rem;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .hero-section::after {
    inset: 0.36rem;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    height: 175px;
    max-height: 22svh;
    min-height: 0;}body.piano-app-page[data-page="piano"] .hero-image-frame img {
    max-width: 100%;}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
    object-position: center 48%;}body.piano-app-page[data-page="piano"] .instrument-switcher-panel {
    margin-top: clamp(-2.42rem, -5.6svh, -1.94rem);
    margin-bottom: clamp(-1.04rem, -2.2svh, -0.78rem);
    padding: 0.28rem 0.56rem 0.12rem;}body.piano-app-page[data-page="piano"] .instrument-switcher {
    margin-right: clamp(0.4rem, 2vw, 1.4rem);}body.piano-app-page[data-page="piano"] .instrument-switcher-button {
    min-width: clamp(10.4rem, 13vw, 11.8rem);
    min-height: 2.12rem;
    padding: 0.42rem 0.7rem;
    font-size: clamp(0.58rem, 0.95vw, 0.7rem);}body.piano-app-page[data-page="piano"] .chord-workspace {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: var(--home-dashboard-gap);
    min-height: 0;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .selector-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 0.28rem 0.52rem;
    min-height: clamp(9.4rem, 21svh, 10.4rem);
    padding: 0.58rem 0.62rem 0.52rem;
    overflow: hidden;
    clip-path: polygon(0 8px, 8px 8px, 8px 0, calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px, 100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%, 8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel {
    background:
      linear-gradient(180deg, rgba(15, 20, 39, 0.96), rgba(4, 7, 16, 0.98)),
      var(--pv-panel);}body.piano-app-page[data-page="piano"] .root-selector,
body.piano-app-page[data-page="piano"] .chord-type-selector {
    grid-column: 1;
    min-width: 0;}body.piano-app-page[data-page="piano"] .selector-group {
    gap: 0.18rem;}body.piano-app-page[data-page="piano"] .selector-label {
    font-size: clamp(0.58rem, 0.82vw, 0.72rem);
    line-height: 1;}body.piano-app-page[data-page="piano"] .chord-type-selector .category-tabs {
    flex-wrap: wrap;
    margin-bottom: 0;
    padding-bottom: 0;
    overflow: visible;
    scrollbar-width: none;}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu {
    gap: 0.22rem;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
    min-height: 1.68rem;
    padding: 0.22rem 0.36rem;}body.piano-app-page[data-page="piano"] .category-tabs button {
    min-width: 5.35rem;
    font-size: clamp(0.86rem, 1.18vw, 0.98rem);}body.piano-app-page[data-page="piano"] .type-menu button {
    flex-basis: 5.4rem;
    width: 5.4rem;
    min-width: 5.4rem;
    font-size: 0.88rem;}body.piano-app-page[data-page="piano"] .root-selector .root-menu button {
    flex-basis: 3.45rem;
    width: 3.45rem;
    min-width: 3.45rem;
    font-size: 0.88rem;}body.piano-app-page[data-page="piano"] .notation-toggle {
    position: static;
    grid-column: 2;
    grid-row: 1;
    align-self: center;
    justify-self: end;
    margin-left: 0;}body.piano-app-page[data-page="piano"] .notation-toggle button {
    width: 2.28rem;
    min-width: 2.28rem;
    height: 2.28rem;
    min-height: 2.28rem;
    font-size: 1.08rem;}body.piano-app-page[data-page="piano"] .chord-display {
    grid-template-rows: minmax(0, 1fr) var(--home-chord-details-height);
    align-content: stretch;
    gap: 0.3rem;
    min-height: 0;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .chord-layout {
    grid-template-columns: minmax(17rem, 0.43fr) minmax(0, 0.57fr);
    gap: 0.55rem;
    min-height: 0;
    height: 100%;
    overflow: hidden;
    position: relative;
    z-index: 1;}body.piano-app-page[data-page="piano"] .chord-left-column {
    gap: 0.55rem;}body.piano-app-page[data-page="piano"] .chord-details-layout {
    align-self: stretch;
    margin-top: 0;
    height: var(--home-chord-details-height);
    min-height: var(--home-chord-details-height);
    max-height: var(--home-chord-details-height);
    overflow: hidden;
    position: relative;
    z-index: 0;}body.piano-app-page[data-page="piano"] .card {
    padding: 0.58rem 0.66rem;}body.piano-app-page[data-page="piano"] .chord-summary-card {
    grid-template-columns: clamp(4.35rem, 5.7vw, 5.25rem) minmax(0, 1fr);
    gap: 0.34rem 0.62rem;}body.piano-app-page[data-page="piano"] .chord-emblem {
    width: clamp(4.35rem, 5.7vw, 5.25rem);}body.piano-app-page[data-page="piano"] .chord-symbol {
    min-height: clamp(4.35rem, 5.7vw, 5.25rem);}body.piano-app-page[data-page="piano"] .chord-emblem .chord-symbol,
body.piano-app-page[data-page="piano"] [data-quality] .chord-emblem .chord-symbol {
    font-size: clamp(1.55rem, 2.25vw, 1.85rem);}body.piano-app-page[data-page="piano"] .chord-heading-row {
    gap: 0.34rem;}body.piano-app-page[data-page="piano"] .chord-heading-row h2 {
    font-size: clamp(1.28rem, 2.1vw, 1.85rem);}body.piano-app-page[data-page="piano"] .chord-summary-card > p,
body.piano-app-page[data-page="piano"] .chord-info-card p {
    font-size: clamp(0.8rem, 1.02vw, 0.9rem);
    line-height: 1.2;}body.piano-app-page[data-page="piano"] .chord-summary-card .card-actions button {
    min-height: 1.82rem;
    padding: 0.22rem 0.48rem;}body.piano-app-page[data-page="piano"] .piano-card {
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 0.32rem;
    min-height: clamp(18rem, 41svh, 23rem);}body.piano-app-page[data-page="piano"] .piano-card-header {
    gap: 0.38rem;
    padding-bottom: 0.28rem;}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button {
    width: clamp(2.75rem, 3.8vw, 3.45rem);
    height: clamp(2.75rem, 3.8vw, 3.45rem);}body.piano-app-page[data-page="piano"] .piano-card-header > .piano-metrics {
    min-width: 0;}body.piano-app-page[data-page="piano"] .piano-metric-row,
body.piano-app-page[data-page="piano"] .note-line {
    grid-template-columns: minmax(4.1rem, auto) minmax(0, 1fr);
    gap: 0.42rem;}body.piano-app-page[data-page="piano"] .piano-metric-row {
    padding-bottom: 0.2rem;}body.piano-app-page[data-page="piano"] .note-line {
    padding-top: 0.2rem;}body.piano-app-page[data-page="piano"] .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"] .note-line .stat-label,
body.piano-app-page[data-page="piano"] .keyboard-legend {
    font-size: clamp(0.7rem, 0.92vw, 0.85rem);}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline] {
    font-size: clamp(0.78rem, 0.95vw, 0.88rem);}body.piano-app-page[data-page="piano"] .piano-card .keyboard {
    display: grid;
    align-items: center;
    padding: 0.32rem;}body.piano-app-page[data-page="piano"] .piano-card .piano-svg {
    height: auto;
    max-height: clamp(8.4rem, 25svh, 12.25rem);}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-card {
    gap: 0.24rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title {
    gap: 0.28rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title img {
    width: 1.35rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-card-title h2,
body.piano-app-page[data-page="piano"] .chord-info-card h2 {
    font-size: clamp(0.95rem, 1.18vw, 1.08rem);}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list li {
    min-height: 2rem;
    padding: 0.22rem 0.1rem 0.22rem 0.36rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list span:first-child {
    font-size: 1rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list span + span {
    font-size: 0.86rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card {
    grid-template-columns: 2.8rem minmax(0, 1fr);
    gap: 0.52rem;
    padding: 0.44rem 0.62rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot {
    min-height: 2.55rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot img {
    width: min(2.55rem, 100%);}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card h2 {
    font-size: clamp(0.88rem, 1vw, 1rem);}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card p {
    font-size: clamp(0.76rem, 0.9vw, 0.84rem);
    line-height: 1.16;}
}@media (min-width: 981px) and (min-height: 840px) {body.piano-app-page[data-page="piano"] .hero-image-frame {
    height: clamp(11.25rem, 21svh, 13.6rem);}body.piano-app-page[data-page="piano"] .piano-card .piano-svg {
    max-height: 17rem;}
}@media (max-width: 980px) {body.piano-app-page[data-page="piano"] {
    overflow-x: hidden;}body.piano-app-page[data-page="piano"] .app-shell,
body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] .chord-workspace,
body.piano-app-page[data-page="piano"] .chord-display {
    width: 100%;
    min-width: 0;
    max-width: 100%;}body.piano-app-page[data-page="piano"] .app-shell > *,
body.piano-app-page[data-page="piano"] main > *,
body.piano-app-page[data-page="piano"] .chord-workspace > *,
body.piano-app-page[data-page="piano"] .chord-display > * {
    min-width: 0;}body.piano-app-page[data-page="piano"] .chord-type-selector .category-tabs {
    flex-wrap: wrap;
    overflow: visible;
    scrollbar-width: none;}
}@media (max-width: 360px) {body.piano-app-page[data-page="piano"] .site-brand-lockup {
    flex-wrap: wrap;
    row-gap: 0.32rem;}body.piano-app-page[data-page="piano"] .site-brand {
    font-size: clamp(0.82rem, 4vw, 0.95rem);}body.piano-app-page[data-page="piano"] .site-section {
    padding-left: 0;
    border-left: 0;}
}body.piano-app-page[data-page="piano"] .root-menu,
body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-menu button,
body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 400;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button {
  flex-basis: 7rem;
  width: 7rem;
  min-width: 7rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button:not(.is-active) {
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .type-menu button.is-active {
  background: linear-gradient(180deg, #320369 0%, #1b0333 100%);}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list {
  grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list span:first-child {
  font-size: 1.1rem;}body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-list span + span {
  font-family: var(--font-body);
  font-size: 1rem;}body.piano-app-page[data-page="piano"] .keyboard-legend {
  font-size: 0.8rem;}body.piano-app-page[data-page="piano"] .formula-line {
  font-family: var(--font-body);
  font-size: 1rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-summary-card .card-actions button {
  border-color: #a73dff;
  color: #a73dff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-summary-card .card-actions button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-summary-card .card-actions button:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-summary-card .card-actions button:active {
  border-color: #ff4fca;
  color: #ff4fca;}body.piano-app-page[data-page="piano"] .header-icon-button {
  display: inline-grid;
  place-items: center;
  padding: 0;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  line-height: 1;
  text-align: center;}body.piano-app-page[data-page="piano"] .mobile-github-link {
  display: none;}body.piano-app-page[data-page="piano"] .site-section {
  font-size: 1.3rem;
  letter-spacing: 0.08em;}body.piano-app-page[data-page="piano"] .instrument-family-select {
  min-width: clamp(8.8rem, 10vw, 9.8rem);}body.piano-app-page[data-page="piano"] .instrument-family-select {
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%, 0 0;
  background-size: 0.34rem 0.34rem, 0.34rem 0.34rem, 100% 100%;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select {
  border-color: #ff68c8;
  color: #120011;
  background-color: #ff84d2;
  background-image:
    linear-gradient(45deg, transparent 50%, #120011 50%),
    linear-gradient(135deg, #120011 50%, transparent 50%),
    linear-gradient(180deg, #ffb3e4 0%, #ff5ec5 58%, #d4149d 100%);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.36) inset,
    0 0 1rem rgb(255 72 186 / 0.28);}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus-visible {
  border-color: #fff;
  color: #050005;
  background-image:
    linear-gradient(45deg, transparent 50%, #050005 50%),
    linear-gradient(135deg, #050005 50%, transparent 50%),
    linear-gradient(180deg, #ffe0f4 0%, #ff84d2 56%, #f02eb8 100%);}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select option {
  background: #ffc2eb;
  color: #000;}body.piano-app-page[data-page="piano"] .sound-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.72rem;
  min-width: 0;
  position: relative;
  z-index: 44;
  overflow: visible;}body.piano-app-page[data-page="piano"] .chord-details-layout {
  position: relative;
  z-index: 0;}body.piano-app-page[data-page="piano"] .sound-card-control {
  display: flex;
  align-items: center;
  height: 100%;
  padding-left: 1rem;
  min-width: 0;}body.piano-app-page[data-page="piano"] .sound-select {
  position: relative;
  z-index: 46;
  width: 100%;
  min-width: 9.75rem;}body.piano-app-page[data-page="piano"] .sound-select-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem;
  width: 100%;
  min-height: clamp(2rem, 4.4svh, 2.32rem);
  padding: 0.32rem 0.75rem;
  border-radius: 2px;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1;
  text-transform: uppercase;
  cursor: pointer;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-select-button {
  border: 1px solid rgba(140, 53, 255, 0.68);
  background: linear-gradient(180deg, rgba(255, 94, 197, 0.95) 0%, rgba(143, 6, 101, 0.96) 100%);
  color: #fff;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    inset 0 -8px 12px rgba(0, 0, 0, 0.22),
    0 0 0 1px rgba(0, 0, 0, 0.7);}body.piano-app-page[data-page="piano"] .sound-select-button:hover,
body.piano-app-page[data-page="piano"] .sound-select-button:focus-visible {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-select-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-select-button:focus-visible {
  border-color: #ff4fca;
  color: #ffdef5;}body.piano-app-page[data-page="piano"] .sound-select-chevron {
  width: 0.48rem;
  height: 0.48rem;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
  transform: translateY(0.12rem) rotate(45deg);
  flex: 0 0 auto;}body.piano-app-page[data-page="piano"] .sound-options {
  position: fixed;
  z-index: 48;
  right: auto;
  bottom: var(--sound-menu-bottom, 4rem);
  left: var(--sound-menu-left, 1rem);
  width: var(--sound-menu-width, 12rem);
  display: grid;
  gap: 0.22rem;
  padding: 0.3rem;
  border-radius: 7px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-options {
  border: 1px solid rgba(167, 61, 255, 0.65);
  background: rgba(8, 2, 20, 0.96);
  box-shadow: 0 0.85rem 1.8rem rgba(0, 0, 0, 0.38), 0 0 1.4rem rgba(120, 41, 255, 0.18);}body.piano-app-page[data-page="piano"] .sound-options[hidden] {
  display: none;}body.piano-app-page[data-page="piano"] .sound-option {
  width: 100%;
  min-height: 2rem;
  padding: 0.38rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-ui);
  font-size: 0.96rem;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-option {
  color: #e8dfff;}body.piano-app-page[data-page="piano"] .sound-option:hover,
body.piano-app-page[data-page="piano"] .sound-option:focus-visible {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-option:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-option:focus-visible {
  border-color: rgba(255, 79, 202, 0.7);
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-option.is-selected {
  border-color: rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(50, 3, 105, 0.88) 0%, rgba(27, 3, 51, 0.96) 100%);
  color: #fff;}.header-native-select {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}body.piano-app-page[data-page="piano"] .header-menu {
  display: inline-flex;}body.piano-app-page[data-page="piano"] .header-menu-button,
body.piano-app-page[data-page="piano"] .header-menu-button:hover,
body.piano-app-page[data-page="piano"] .header-menu-button:focus,
body.piano-app-page[data-page="piano"] .header-menu-button:focus-visible,
body.piano-app-page[data-page="piano"] .header-menu-button:active {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem;
  font-family: var(--font-ui);}body.piano-app-page[data-page="piano"] .header-menu-button,
body.piano-app-page[data-page="piano"] .header-menu-button:hover,
body.piano-app-page[data-page="piano"] .header-menu-button:focus,
body.piano-app-page[data-page="piano"] .header-menu-button:focus-visible,
body.piano-app-page[data-page="piano"] .header-menu-button:active {
  background-position: 0 0;
  background-size: 100% 100%;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:active {
  border-color: rgba(167, 61, 255, 0.7);
  background-color: rgba(8, 2, 20, 0.96);
  background-image: linear-gradient(180deg, rgba(8, 2, 20, 0.96), rgba(3, 1, 10, 0.98));
  color: #fff;
  box-shadow:
    0 0 0 1px rgba(167, 61, 255, 0.7) inset,
    0 0.85rem 1.8rem rgba(0, 0, 0, 0.22),
    0 0 1.1rem rgba(120, 41, 255, 0.16);}body.piano-app-page[data-page="piano"] .header-menu-button:focus-visible {
  outline-offset: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:focus-visible {
  outline: 2px solid #d98cff;}body.piano-app-page[data-page="piano"] .header-menu-chevron {
  width: 0.48rem;
  height: 0.48rem;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-0.12rem) rotate(45deg);
  flex: 0 0 auto;}body.piano-app-page[data-page="piano"] .header-menu-button.instrument-family-select .header-menu-chevron {
  display: none;}body.piano-app-page[data-page="piano"] .header-options {
  position: fixed;
  z-index: 49;
  top: var(--header-menu-top, 4rem);
  right: auto;
  left: var(--header-menu-left, 1rem);
  width: var(--header-menu-width, 12rem);
  display: grid;
  gap: 0.22rem;
  max-height: calc(100svh - var(--header-menu-top, 4rem) - 0.75rem);
  overflow-y: auto;
  padding: 0.3rem;
  border-radius: 7px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-options {
  border: 1px solid rgba(167, 61, 255, 0.65);
  background: rgba(8, 2, 20, 0.96);
  box-shadow: 0 0.85rem 1.8rem rgba(0, 0, 0, 0.38), 0 0 1.4rem rgba(120, 41, 255, 0.18);}body.piano-app-page[data-page="piano"] .header-options[hidden] {
  display: none;}body.piano-app-page[data-page="piano"] .header-option {
  width: 100%;
  min-height: 2rem;
  padding: 0.38rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-ui);
  font-size: 0.96rem;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-option {
  color: #e8dfff;}body.piano-app-page[data-page="piano"] .header-option:hover,
body.piano-app-page[data-page="piano"] .header-option:focus-visible {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-option:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-option:focus-visible {
  border-color: rgba(255, 79, 202, 0.7);
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-option.is-selected {
  border-color: rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(50, 3, 105, 0.88) 0%, rgba(27, 3, 51, 0.96) 100%);
  color: #fff;}body.piano-app-page[data-page="piano"] .header-option:disabled {
  cursor: not-allowed;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-option:disabled {
  color: rgba(232, 223, 255, 0.42);}body.piano-app-page[data-page="piano"] .header-select option {
  min-height: 2rem;
  padding: 0.38rem 0.5rem;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.96rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select option {
  background: rgba(8, 2, 20, 0.96);
  color: #e8dfff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select option:checked {
  border-color: rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(50, 3, 105, 0.88) 0%, rgba(27, 3, 51, 0.96) 100%);
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-select option:disabled {
  color: rgba(232, 223, 255, 0.42);}body.piano-app-page[data-page="piano"] .sound-card-robot {
  width: clamp(3.1rem, 6vw, 4.25rem);
  height: auto;
  max-width: 100%;
  transform-origin: 50% 70%;
  transform: scaleX(-1) rotate(-5deg);
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .sound-card-robot {
  filter: drop-shadow(0 0.48rem 0.85rem rgba(103, 52, 255, 0.24));}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot {
  display: grid;
  place-items: center;
  min-height: clamp(3.1rem, 6vw, 4.25rem);}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot img {
  width: clamp(3.1rem, 6vw, 4.25rem);}body.piano-app-page[data-page="piano"] .chord-details-layout .future-illustration-slot .info-card-robot {
  transform-origin: 50% 58%;
  transform: scaleX(-1) rotate(-0.5deg);}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-details-layout .future-illustration-slot .info-card-robot {
  filter: drop-shadow(0 0.48rem 0.85rem rgba(103, 52, 255, 0.24));}@media (min-width: 981px) {body.piano-app-page[data-page="piano"] .chord-details-layout {
    grid-template-columns: minmax(11rem, 0.38fr) minmax(0, 1fr);
    align-items: stretch;}body.piano-app-page[data-page="piano"] .chord-details-layout .sound-card,
body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card {
    height: 100%;}body.piano-app-page[data-page="piano"] .chord-details-layout .sound-card {
    min-height: 100%;
    padding: 0.44rem 0.58rem;}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card {
    grid-template-columns: clamp(3.1rem, 6vw, 4.25rem) minmax(0, 1fr);}
}@media (max-width: 820px) {body.piano-app-page[data-page="piano"] .chord-details-layout {
    grid-template-columns: 1fr;}body.piano-app-page[data-page="piano"] .sound-card {
    grid-template-columns: minmax(0, 1fr) auto;}
}body.piano-app-page[data-page="piano"] .octave-toggle {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  align-self: center;
  justify-self: start;
  width: clamp(2.75rem, 3.8vw, 3.45rem);
  height: clamp(2.75rem, 3.8vw, 3.45rem);
  min-width: clamp(2.75rem, 3.8vw, 3.45rem);
  min-height: clamp(2.75rem, 3.8vw, 3.45rem);
  padding: 0;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
  font-size: clamp(0.72rem, 0.9vw, 0.86rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: normal;}body.piano-app-page[data-page="piano"][data-theme="dark"] .octave-toggle {
  border: 1px solid #ff4fca;
  background: linear-gradient(180deg, rgba(255, 94, 197, 0.95) 0%, rgba(143, 6, 101, 0.96) 100%);
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.08), 0 0 18px rgba(255, 79, 202, 0.28);
  color: #fff;}body.piano-app-page[data-page="piano"] .octave-toggle:hover,
body.piano-app-page[data-page="piano"] .octave-toggle:focus-visible {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .octave-toggle:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .octave-toggle:focus-visible {
  border-color: #ff9de0;
  background: linear-gradient(180deg, rgba(255, 94, 197, 0.95) 0%, rgba(143, 6, 101, 0.96) 100%);
  color: #fff;}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-left-column {
  transition: grid-template-columns 180ms ease, transform 180ms ease, opacity 160ms ease;}@media (min-width: 981px) {body.piano-app-page[data-page="piano"] .chord-display.is-two-octaves .chord-layout {
    grid-template-columns: 0 minmax(0, 1fr) !important;
    gap: 0 !important;}body.piano-app-page[data-page="piano"] .chord-display.is-two-octaves .chord-left-column {
    min-width: 19rem;
    pointer-events: none;
    transform: translateX(calc(-100vw - 2rem));}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-display.is-two-octaves .chord-left-column {
    opacity: 0;}body.piano-app-page[data-page="piano"] .chord-display.is-two-octaves .piano-card {
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"] .chord-display.is-two-octaves .piano-card .piano-svg {
    max-height: clamp(10.4rem, 31svh, 17rem);}
}@media (max-width: 980px) {body.piano-app-page[data-page="piano"] .chord-display.is-two-octaves .chord-layout {
    grid-template-columns: 1fr !important;}body.piano-app-page[data-page="piano"] .chord-display.is-two-octaves .chord-left-column {
    pointer-events: auto;
    transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-display.is-two-octaves .chord-left-column {
    opacity: 1;}
}body.piano-app-page[data-page="piano"] .hero-image-frame {
  aspect-ratio: 48 / 7;
  width: 100%;
  max-width: 100%;
  height: 175px;
  max-height: none;
  border: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;}@media (max-width: 980px) {body.piano-app-page[data-page="piano"] .hero-image-frame {
    aspect-ratio: auto;
    height: clamp(8.5rem, 22vw, 11rem);}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
    object-fit: cover;
    object-position: 45% center;}
}@media (max-width: 620px) {body.piano-app-page[data-page="piano"] .hero-image-frame {
    height: clamp(8.25rem, 44vw, 10.5rem);}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
    object-position: 42% center;}
}body.piano-app-page[data-page="piano"] .hero-section {
  border: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
  clip-path: none;}body.piano-app-page[data-page="piano"] .hero-section::before,
body.piano-app-page[data-page="piano"] .hero-section::after {
  display: none;}body.piano-app-page[data-page="piano"] .app-shell::before {
  display: none;}body.piano-app-page[data-page="piano"] main {
  gap: 0;}body.piano-app-page[data-page="piano"] .chord-workspace {
  position: relative;
  border-radius: 5px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .chord-workspace {
  border: 1px solid rgba(140, 53, 255, 0.55);
  box-shadow:
    0 0 0 1px rgba(255, 79, 202, 0.16),
    0 0 34px rgba(67, 19, 121, 0.44);}body.piano-app-page[data-page="piano"] .site-brand-lockup,
body.piano-app-page[data-page="piano"] .site-actions {
  margin-top: 1rem;}body.piano-app-page[data-page="piano"] .site-logo {
  margin-top: 0;}body.piano-app-page[data-page="piano"] .instrument-family-select,
body.piano-app-page[data-page="piano"] .instrument-family-select:hover,
body.piano-app-page[data-page="piano"] .instrument-family-select:focus,
body.piano-app-page[data-page="piano"] .instrument-family-select:focus-visible,
body.piano-app-page[data-page="piano"] .instrument-family-select:active {
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%, 0 0;
  background-size: 0.34rem 0.34rem, 0.34rem 0.34rem, 100% 100%;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:active {
  border-color: #ff68c8;
  color: #120011;
  background-color: #ff84d2;
  background-image:
    linear-gradient(45deg, transparent 50%, #120011 50%),
    linear-gradient(135deg, #120011 50%, transparent 50%),
    linear-gradient(0deg, #ffb3e4 0%, #ff5ec5 58%, #d4149d 100%);
  box-shadow:
    0 0 0 1px rgb(255 255 255 / 0.36) inset,
    0 0 1rem rgb(255 72 186 / 0.28);}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select {
  background-image:
    linear-gradient(45deg, transparent 50%, #120011 50%),
    linear-gradient(135deg, #120011 50%, transparent 50%),
    linear-gradient(180deg, #ffb3e4 0%, #ff5ec5 58%, #d4149d 100%);}body.piano-app-page[data-page="piano"] .instrument-family-select:focus,
body.piano-app-page[data-page="piano"] .instrument-family-select:focus-visible {
  outline-offset: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus-visible {
  outline: 2px solid #d98cff;}body.piano-app-page[data-page="piano"] #instrument-family-menu,
body.piano-app-page[data-page="piano"] #instrument-family-menu:hover,
body.piano-app-page[data-page="piano"] #instrument-family-menu:focus,
body.piano-app-page[data-page="piano"] #instrument-family-menu:focus-visible,
body.piano-app-page[data-page="piano"] #instrument-family-menu:active,
body.piano-app-page[data-page="piano"] #piano-area-menu,
body.piano-app-page[data-page="piano"] #piano-area-menu:hover,
body.piano-app-page[data-page="piano"] #piano-area-menu:focus,
body.piano-app-page[data-page="piano"] #piano-area-menu:focus-visible,
body.piano-app-page[data-page="piano"] #piano-area-menu:active,
body.piano-app-page[data-page="piano"] #theme-menu,
body.piano-app-page[data-page="piano"] #theme-menu:hover,
body.piano-app-page[data-page="piano"] #theme-menu:focus,
body.piano-app-page[data-page="piano"] #theme-menu:focus-visible,
body.piano-app-page[data-page="piano"] #theme-menu:active {
  font-family: var(--font-ui);}body.piano-app-page[data-page="piano"] #instrument-family-menu,
body.piano-app-page[data-page="piano"] #instrument-family-menu:hover,
body.piano-app-page[data-page="piano"] #instrument-family-menu:focus,
body.piano-app-page[data-page="piano"] #instrument-family-menu:focus-visible,
body.piano-app-page[data-page="piano"] #instrument-family-menu:active,
body.piano-app-page[data-page="piano"] #piano-area-menu,
body.piano-app-page[data-page="piano"] #piano-area-menu:hover,
body.piano-app-page[data-page="piano"] #piano-area-menu:focus,
body.piano-app-page[data-page="piano"] #piano-area-menu:focus-visible,
body.piano-app-page[data-page="piano"] #piano-area-menu:active,
body.piano-app-page[data-page="piano"] #theme-menu,
body.piano-app-page[data-page="piano"] #theme-menu:hover,
body.piano-app-page[data-page="piano"] #theme-menu:focus,
body.piano-app-page[data-page="piano"] #theme-menu:focus-visible,
body.piano-app-page[data-page="piano"] #theme-menu:active {
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%, 0 0;
  background-size: 0.34rem 0.34rem, 0.34rem 0.34rem, 100% 100%;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:active,
body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu,
body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu:active,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu:active {
  border-color: rgba(167, 61, 255, 0.7);
  background-color: rgba(8, 2, 20, 0.96);
  background-image:
    linear-gradient(45deg, transparent 50%, #a73dff 50%),
    linear-gradient(135deg, #a73dff 50%, transparent 50%),
    linear-gradient(180deg, rgba(8, 2, 20, 0.96), rgba(3, 1, 10, 0.98));
  color: #fff;
  box-shadow:
    0 0 0 1px rgba(167, 61, 255, 0.7) inset,
    0 0.85rem 1.8rem rgba(0, 0, 0, 0.22),
    0 0 1.1rem rgba(120, 41, 255, 0.16);}body.piano-app-page[data-page="piano"] #piano-area-menu option,
body.piano-app-page[data-page="piano"] #theme-menu option {
  min-height: 2rem;
  padding: 0.38rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-ui);
  font-size: 0.96rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu option,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu option {
  color: #e8dfff;}body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu option:checked,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu option:checked {
  border-color: rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(50, 3, 105, 0.88) 0%, rgba(27, 3, 51, 0.96) 100%);
  color: #fff;}body.piano-app-page[data-page="piano"] #piano-area-menu option:hover,
body.piano-app-page[data-page="piano"] #theme-menu option:hover {
  outline: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu option:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu option:hover {
  border-color: rgba(255, 79, 202, 0.7);
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] #piano-area-menu option:disabled,
body.piano-app-page[data-page="piano"][data-theme="dark"] #theme-menu option:disabled {
  color: rgba(232, 223, 255, 0.42);}body.piano-app-page[data-page="piano"] #instrument-family-menu option {
  min-height: 2rem;
  padding: 0.38rem 0.5rem;
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 0.96rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu option {
  background: rgba(8, 2, 20, 0.96);
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu option:checked {
  border-color: rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(50, 3, 105, 0.88) 0%, rgba(27, 3, 51, 0.96) 100%);
  color: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu option:disabled {
  color: rgba(255, 255, 255, 0.45);}body.piano-app-page[data-page="piano"] #instrument-family-menu,
body.piano-app-page[data-page="piano"] #instrument-family-menu:hover,
body.piano-app-page[data-page="piano"] #instrument-family-menu:focus,
body.piano-app-page[data-page="piano"] #instrument-family-menu:focus-visible,
body.piano-app-page[data-page="piano"] #instrument-family-menu:active {
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%, 0 0;
  background-size: 0.34rem 0.34rem, 0.34rem 0.34rem, 100% 100%;
  background-repeat: no-repeat;}

body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] #instrument-family-menu:active {
  border-color: #ffc2eb;
  background-color: #ff84d2;
  background-image:
    linear-gradient(45deg, transparent 50%, #120011 50%),
    linear-gradient(135deg, #120011 50%, transparent 50%),
    linear-gradient(180deg, #ffb3e4 0%, #ff5ec5 58%, #d4149d 100%);
  color: #120011;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.36) inset,
    0 0 1rem rgba(255, 72, 186, 0.28);}body.piano-app-page[data-page="piano"] .selector-panel {
  border-radius: 5px;
  clip-path: none;
  animation: none;}body.piano-app-page[data-page="piano"] .selector-panel {
  background-position: 0 0;
  background-size: 100% 100%;}

body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel {
  border-color: var(--pv-border);
  background:
    linear-gradient(180deg, rgba(15, 20, 39, 0.96), rgba(4, 7, 16, 0.98)) padding-box;}body.piano-app-page[data-page="piano"] .selector-panel-kicker {
  margin: 0 0 0.2rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-kicker {
  color: #fff;}body.piano-app-page[data-page="piano"] .selector-welcome {
  position: relative;
  display: grid;
  align-content: start;
  gap: 0.44rem;
  width: 100%;
  min-width: 0;
  padding: clamp(0.58rem, 0.82vw, 0.8rem);
  overflow: hidden;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-welcome {
  border: 1px solid var(--pv-border-bright);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent 34%),
    linear-gradient(180deg, rgba(7, 8, 24, 0.98), rgba(3, 5, 15, 0.98));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.055),
    inset 0 -18px 38px rgba(0, 0, 0, 0.28),
    0 0 24px rgba(168, 70, 255, 0.26);}body.piano-app-page[data-page="piano"] .selector-welcome::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-welcome::before {
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.035) 0,
    rgba(255, 255, 255, 0.035) 1px,
    transparent 1px,
    transparent 8px
  );
  opacity: 0.28;}body.piano-app-page[data-page="piano"] .selector-welcome > * {
  position: relative;
  z-index: 1;}body.piano-app-page[data-page="piano"] .selector-welcome-heading {
  display: grid;
  gap: 0.38rem;
  padding-bottom: 0.46rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-welcome-heading {
  border-bottom: 1px solid var(--pv-border-bright);}body.piano-app-page[data-page="piano"] .selector-welcome h2,
body.piano-app-page[data-page="piano"] .selector-welcome-heading p {
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(0.78rem, 1.05vw, 1rem);
  line-height: 1.55;
  letter-spacing: 0;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-welcome h2,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-welcome-heading p {
  color: var(--pv-text);
  text-shadow:
    0 0 10px rgba(248, 242, 255, 0.44),
    0 0 18px rgba(187, 69, 255, 0.46);}body.piano-app-page[data-page="piano"] .selector-welcome > p {
  margin: 0;
  font-size: clamp(0.82rem, 0.95vw, 0.94rem);
  line-height: 1.4;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-welcome > p {
  color: var(--pv-text);}@media (min-width: 981px) {body.piano-app-page[data-page="piano"] .selector-welcome {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: stretch;
    justify-self: end;
    width: clamp(17rem, 21vw, 20rem);}
}body.piano-app-page[data-page="piano"] .selector-panel .root-selector .root-menu button {
  flex-basis: 4rem;
  width: 4rem;
  min-width: 4rem;}body.piano-app-page[data-page="piano"] .selector-panel .root-menu button,
body.piano-app-page[data-page="piano"] .selector-panel .category-tabs button,
body.piano-app-page[data-page="piano"] .selector-panel .type-menu button {
  font-size: 1rem;}body.piano-app-page[data-page="piano"] .root-menu-centered button,
body.piano-app-page[data-page="piano"] .selector-panel .root-menu.root-menu-centered button,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu.root-menu-centered button {
  font-size: 1rem;}body.piano-app-page[data-page="piano"] .selector-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity 0.3s ease;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel::after {
  opacity: 0;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);}body.piano-app-page[data-page="piano"] .progression-summary-card {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: start;
  align-items: start;
  gap: 1rem;}body.piano-app-page[data-page="piano"] .progression-summary-card .chord-emblem {
  grid-column: 1;
  grid-row: 1;}body.piano-app-page[data-page="piano"] .progression-summary-card .chord-heading-row {
  grid-column: 2;
  grid-row: 1;
  align-self: start;
  min-width: 0;
  padding-right: 7rem;}body.piano-app-page[data-page="piano"] .progression-summary-card [data-home-progression-title] {
  align-self: start;
  margin-top: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card {
  grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-emblem {
  display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-heading-row {
  grid-column: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card [data-home-progression-title] {
  font-size: 2rem;
  margin-left: 0.15rem;
  margin-top: 0.15rem;}body.piano-app-page[data-page="piano"] .chord-left-column .progressions-list-card {
  display: grid;
  align-content: start;
  gap: 0.34rem;
  min-height: 0;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-list-card h2 {
  color: var(--pv-accent);
  text-shadow: 0 0 12px var(--pv-glow);}body.piano-app-page[data-page="piano"] .progressions-list-card .related-carousel-button {
  padding: 0.55rem 0.85rem;
  border-radius: 2px;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: none;
  transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-list-card .related-carousel-button {
  border: 1px solid rgba(140, 53, 255, 0.68);
  background: linear-gradient(180deg, rgba(13, 17, 32, 0.98), rgba(5, 8, 19, 0.98));
  color: var(--pv-text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.035), inset 0 -8px 12px rgba(0, 0, 0, 0.22), 0 0 0 1px rgba(0, 0, 0, 0.7);}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-list-card .related-chords-list li.is-active {
  border-color: #360163;
  box-shadow: 0 0 16px rgba(255, 104, 200, 0.18);}body.piano-app-page[data-page="piano"] .progressions-list-card .related-chords-list li button {
  width: 1.72rem;
  min-width: 1.72rem;
  min-height: 1.72rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-list-card .related-chords-list li button {
  border-color: rgba(167, 61, 255, 0.75);
  background: rgba(11, 8, 28, 0.92);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 0 10px rgba(167, 61, 255, 0.16);}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-list-card .related-chords-list li button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-list-card .related-chords-list li button:focus-visible {
  border-color: #ff68c8;
  background: rgba(46, 10, 73, 0.96);
  box-shadow: 0 0 14px rgba(255, 104, 200, 0.22);}body.piano-app-page[data-page="piano"] .homepage-progression-animation {
  width: 100%;
  margin: 0;}body.piano-app-page[data-page="piano"] .homepage-progression-animation .progression-step {
  min-height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;}body.piano-app-page[data-page="piano"] .homepage-progression-animation .progression-step > span {
  display: block;
  margin: 0 0 0.35rem;
  font-family: var(--font-brand);
  font-size: 0.82rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .homepage-progression-animation .progression-step > span {
  color: var(--pv-accent);
  text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"] .homepage-progression-animation .progression-keyboard {
  min-width: 0;}body.piano-app-page[data-page="piano"] .homepage-progression-animation .progression-keyboard .piano-svg {
  display: block;
  width: 100%;
  height: auto;}@media (min-width: 701px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-content: end;
    gap: 0.5rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel h2 {
    grid-column: 1;
    margin-bottom: 0;
    font-family: var(--font-brand);
    font-size: 0.62rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    line-height: 1;
    text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .key-selector-panel h2 {
    color: #a73dff;
    text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0.42rem;
    width: 100%;
    margin: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu button {
    display: grid;
    place-items: center;
    width: 100%;
    min-width: 0;
    aspect-ratio: 1;
    padding: 0;
    white-space: nowrap;}
}body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .scale-line {
  justify-self: center;
  width: 100%;
  margin: 0.5rem 0 0;
  padding-top: 0.55rem;
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 1.8vw, 1.55rem);
  line-height: 1;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .key-selector-panel .scale-line {
  border-top: 1px solid #392052;
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .keyboard-legend {
  justify-self: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .keyboard-legend [data-home-progression-step-label] {
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .keyboard-legend [data-home-progression-step-label] {
  color: #ff68c8;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-fields {
  display: grid;
  align-self: center;
  gap: 0.34rem;
  min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-list {
  min-width: 0;
  margin: 0;
  padding: 0.34rem 0.55rem;
  overflow: hidden;
  border: 0;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: clamp(0.78rem, 1.05vw, 0.95rem);
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-songs-label,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-songs-list {
  background: rgba(8, 10, 27, 0.72);
  color: var(--pv-text);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-label {
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-songs-label {
  color: #ff4fca;
  text-shadow: 0 0 10px var(--pv-glow);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-songs-separator {
  color: #ff4fca;}body.piano-app-page[data-page="piano"] .homepage-progression-animation .progression-step > span {
  display: none;}body.piano-app-page[data-page="piano"] .progression-summary-card,
body.piano-app-page[data-page="piano"] .progressions-list-card,
body.piano-app-page[data-page="piano"] .progression-customizer,
body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .selector-panel {
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    color 0.18s ease,
    opacity 0.18s ease,
    transform 0.18s ease;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .selector-panel,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progressions-list-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-info-card {
  animation: home-progressions-soft-in 0.22s ease both;}@keyframes home-progressions-soft-in {
  from {
    opacity: 0.82;
    transform: translateY(2px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 0.32fr);
  gap: 0.42rem;
  align-items: stretch;
  padding: 0.42rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message {
  display: none;}@media (min-width: 981px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode {
    height: auto;
    min-height: 100svh;
    overflow-x: hidden;
    overflow-y: auto;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .app-shell,
body.piano-app-page[data-page="piano"].is-home-progressions-mode main {
    height: auto;
    min-height: 0;
    overflow: visible;}body.piano-app-page[data-page="piano"].is-home-progressions-mode main {
    grid-template-rows: auto auto;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-workspace {
    grid-template-rows: auto minmax(0, 1fr);
    height: calc(100svh - 12.15rem);
    overflow: hidden;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-display {
    grid-template-rows: minmax(0, 1fr) auto;
    min-height: 0;
    overflow: hidden;}
}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer-section {
  display: grid;
  gap: 0.28rem;
  min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-section {
  margin: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main {
  align-content: start;
  align-items: start;
  grid-template-rows: max-content max-content;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side {
  align-content: start;
  align-items: start;
  grid-template-rows: max-content max-content;
  padding: 0.42rem;
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder-side {
  border: 1px solid rgba(167, 61, 255, 0.7);
  background:
    linear-gradient(180deg, rgb(50 3 105), rgb(25 2 51));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 10px rgba(167, 61, 255, 0.12);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select {
  display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-list {
  display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder .selector-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer .selector-label {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder .selector-label,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer .selector-label {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
  display: grid;
  gap: 0.24rem;
  min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  width: 100%;
  margin: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons {
  grid-template-columns: repeat(2, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select-wrap,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-select-wrap {
  grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid {
  grid-template-columns: repeat(7, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select {
  min-width: 0;
  min-height: 1.68rem;
  padding: 0.24rem 0.42rem;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select {
  width: 100%;
  border: 1px solid rgba(91, 71, 128, 0.38);
  background: var(--pv-panel);
  color: var(--pv-text);
  cursor: pointer;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-select {
  max-width: 100%;
  text-align-last: center;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder button,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer button,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select {
  border: 1px solid rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));
  color: var(--pv-text);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 10px rgba(167, 61, 255, 0.12);}
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select option:not(:checked) {
  background: #8c35ff;
}

body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select option:checked {
  color: #fff;
}

body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid button {
  width: auto;
  min-width: 0;
  aspect-ratio: auto;
  padding: 0.28rem 0.28rem;
  white-space: nowrap;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side button {
  min-height: 1.55rem;
  padding-block: 0.18rem;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder-side button {
  border-color: rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer button:focus-visible {
  border-color: #ff68c8;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 16px rgba(255, 104, 200, 0.18);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select:focus-visible {
  border-color: #ff68c8;
  outline: none;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 16px rgba(255, 104, 200, 0.18);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-builder button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-option-select {
  border-color: #d9bcff;
  background:
    linear-gradient(180deg, rgba(137, 52, 255, 0.94), rgba(57, 7, 110, 0.96));
  color: #fff;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.45);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.16),
    0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer button:disabled {
  cursor: not-allowed;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer button:disabled {
  opacity: 0.48;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility] {
  background: linear-gradient(180deg, rgba(10, 12, 24, 0.98), rgba(3, 6, 15, 0.98));
  text-shadow: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.025);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility="add"] {
  border-color: #22d866;
  color: #65ff95;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.025),
    0 0 5px rgba(34, 216, 102, 0.2);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility="remove"] {
  border-color: #ff5f98;
  color: #ff80aa;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.025),
    0 0 5px rgba(255, 95, 152, 0.2);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility="random"] {
  border-color: #ffa31a;
  color: #ffc24a;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.025),
    0 0 5px rgba(255, 163, 26, 0.2);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility="reset"] {
  border-color: #28cfff;
  color: #67e7ff;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.025),
    0 0 5px rgba(40, 207, 255, 0.2);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility]:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility]:focus-visible {
  border-color: currentColor;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 7px currentColor;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-card {
  display: grid;
  align-content: start;
  gap: 0;
  min-height: 0;
  margin: 0;
  padding: 0.32rem 0.42rem;
  border: 0;
  border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-scale-card {
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-card .selector-label {
  margin-bottom: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-card .scale-line {
  margin: 0;
  padding: 0;
  border: 0;
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.05;
  text-align: left;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-scale-card .scale-line {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.24rem;
  align-items: start;
  padding-block: 0.38rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-emblem {
  display: grid;
  grid-column: 1;
  grid-row: 1;
  width: clamp(4.35rem, 5.7vw, 5.25rem);
  margin-right: 0.25rem;
  align-self: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-heading-row {
  grid-column: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  gap: 0.12rem 0.48rem;
  align-self: start;
  align-items: start;
  min-width: 0;
  padding-right: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card [data-home-progression-title] {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  font-size: 2.1vw;
  line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card [data-home-progression-summary-formula] {
  grid-column: 1;
  grid-row: 2;
  margin: 0;
  font-size: 0.86rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .scale-line {
  grid-column: 1;
  grid-row: 2;
  margin: 0.25rem 0 0;
  padding: 0;
  border: 0;
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.05;
  text-align: left;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-summary-card .scale-line {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .notation-toggle {
  grid-column: 2;
  grid-row: 1 / span 2;
  justify-self: end;
  align-self: center;
  margin-top: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-symbol {
  width: clamp(4.35rem, 5.7vw, 5.25rem);
  min-height: clamp(4.35rem, 5.7vw, 5.25rem);
  font-size: clamp(1.55rem, 2.25vw, 1.85rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-display,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-layout,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-left-column {
  height: 100%;
  min-height: 0;
  overflow: hidden;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-display {
  grid-template-rows: minmax(0, 1fr) 5.25rem;
  row-gap: 0.48rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-left-column {
  grid-template-rows: auto minmax(0, 1fr);
  align-content: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
  position: relative;
  display: grid;
  gap: 0.32rem;
  align-content: space-between;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  padding-block: 0.42rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer h2 {
  margin: 0;
  padding-right: 9.4rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-customizer h2 {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid {
  display: grid;
  grid-template-columns: none;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 0.28rem;
  width: 100%;
  min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button {
  display: grid;
  gap: 0.16rem;
  min-height: 3.05rem;
  place-items: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select {
  font-size: 1.08rem;
  min-height: 3.05rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button span {
  font-size: 0.62rem;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-step-button span {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button strong {
  font-family: var(--font-body);
  font-size: 1.08rem;
  line-height: 1;
  white-space: nowrap;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-step-button strong {
  color: inherit;}@media (min-width: 933px), (min-width: 768px) and (min-height: 431px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(5)) {
    gap: 0.2rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(5)) .progression-step-button {
    gap: 0.12rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(5)) .progression-step-button span {
    font-size: 0.58rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(5)) .progression-step-button strong {
    font-size: 1rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(7)) {
    gap: 0.16rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(7)) .progression-step-button {
    gap: 0.08rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(7)) .progression-step-button span {
    font-size: 0.52rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid:has(.progression-step-button:nth-child(7)) .progression-step-button strong {
    font-size: 0.92rem;}
}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
  grid-template-columns: auto auto minmax(0, 1fr) auto;
  gap: 0.45rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card {
  gap: 0.38rem;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  padding-block: 0.42rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .play-button {
  width: clamp(2.75rem, 3.8vw, 3.45rem);
  height: clamp(2.75rem, 3.8vw, 3.45rem);
  min-width: clamp(2.75rem, 3.8vw, 3.45rem);
  min-height: clamp(2.75rem, 3.8vw, 3.45rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .octave-toggle {
  width: clamp(2.75rem, 3.8vw, 3.45rem);
  height: clamp(2.75rem, 3.8vw, 3.45rem);
  min-width: clamp(2.75rem, 3.8vw, 3.45rem);
  min-height: clamp(2.75rem, 3.8vw, 3.45rem);
  aspect-ratio: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header .repeat-button {
  width: clamp(2.75rem, 3.8vw, 3.45rem);
  height: clamp(2.75rem, 3.8vw, 3.45rem);
  min-width: clamp(2.75rem, 3.8vw, 3.45rem);
  min-height: clamp(2.75rem, 3.8vw, 3.45rem);
  border-radius: 4px;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .keyboard {
  display: grid;
  align-items: stretch;
  justify-items: stretch;
  min-height: 0;
  margin-bottom: 0;
  overflow: hidden;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-step,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-step {
  grid-template-rows: minmax(0, 1fr);
  align-items: stretch;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-step > span {
  display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard .piano-svg {
  width: 100%;
  height: 100%;
  max-height: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .piano-metrics {
  min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .note-line p,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .formula-line {
  overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-card {
  align-items: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout {
  height: 5.25rem;
  min-height: 5.25rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout .sound-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout .chord-info-card {
  height: 100%;
  min-height: 0;
  padding-block: 0.22rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .sound-card-robot,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout .future-illustration-slot img {
  width: clamp(3.1rem, 6vw, 4.25rem);
  height: auto;
  max-width: 100%;
  max-height: none;
  object-fit: contain;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout .future-illustration-slot {
  width: auto;
  min-width: 0;
  height: auto;
  min-height: clamp(3.1rem, 6vw, 4.25rem);
  place-self: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .sound-card-robot {
  align-self: center;
  justify-self: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout .future-illustration-slot .info-card-robot {
  width: clamp(3.1rem, 6vw, 4.25rem);
  height: auto;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-list {
  padding-block: 0.22rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-card {
  animation: home-progressions-soft-in 0.22s ease both;}@media (max-width: 1180px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
    grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side {
    grid-template-columns: minmax(0, 0.5fr) minmax(0, 0.5fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));}
}@media (max-width: 1200px) and (min-width: 981px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-left-column,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
    gap: clamp(0.12rem, 0.28vw, 0.18rem);
    align-content: start;
    grid-auto-rows: max-content;
    padding-block: clamp(0.26rem, 0.5vw, 0.34rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer h2 {
    padding-right: 0;
    font-size: clamp(0.68rem, 1vw, 0.76rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    gap: clamp(0.1rem, 0.22vw, 0.14rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer .selector-label {
    font-size: clamp(0.56rem, 0.84vw, 0.64rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select {
    min-height: clamp(1.72rem, 2.4vw, 1.9rem);
    padding: 0.1rem clamp(0.14rem, 0.35vw, 0.24rem);
    font-size: clamp(0.7rem, 1vw, 0.8rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button {
    gap: 0.06rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button span {
    font-size: clamp(0.46rem, 0.74vw, 0.54rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button strong,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select {
    font-size: clamp(0.76rem, 1.18vw, 0.9rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility] {
    min-height: clamp(1.56rem, 2.2vw, 1.72rem);
    overflow: hidden;
    padding-inline: clamp(0.1rem, 0.32vw, 0.18rem);
    text-overflow: ellipsis;
    white-space: nowrap;}
}@media (max-width: 980px) and (min-width: 768px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
    gap: clamp(0.14rem, 0.42vw, 0.24rem);
    align-content: start;
    grid-auto-rows: max-content;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    gap: clamp(0.1rem, 0.32vw, 0.16rem);
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row [data-home-progression-utility] {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;}
}@media (max-width: 860px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card {
    grid-template-columns: minmax(0, 1fr);}

}@media (max-width: 700px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
    padding: 0.7rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side {
    grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
    grid-template-columns: auto auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header .octave-toggle {
    grid-column: 1 / -1;
    justify-self: end;}
}@media (prefers-reduced-motion: reduce) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .selector-panel,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progressions-list-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-info-card {
    animation: none;}
}body.piano-app-page[data-page="piano"] .github-icon-card {
  position: relative;
  display: grid;
  place-items: center;
  align-self: stretch;
  justify-self: start;
  aspect-ratio: 1;
  width: auto;
  min-width: 0;
  min-height: 0;
  max-height: 100%;
  overflow: hidden;
  border-radius: 3px;
  clip-path: polygon(0 8px, 8px 8px, 8px 0, calc(100% - 8px) 0, calc(100% - 8px) 8px, 100% 8px, 100% calc(100% - 8px), calc(100% - 8px) calc(100% - 8px), calc(100% - 8px) 100%, 8px 100%, 8px calc(100% - 8px), 0 calc(100% - 8px));}body.piano-app-page[data-page="piano"][data-theme="dark"] .github-icon-card {
  border: 1px solid var(--pv-border);
  background:
    radial-gradient(circle at 45% 38%, rgba(187, 69, 255, 0.34), transparent 3rem),
    linear-gradient(180deg, #160b2a, #060713);
  box-shadow:
    0 0 0 1px rgba(167, 61, 255, 0.12),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 0 14px rgba(168, 70, 255, 0.14),
    0 0 10px rgba(168, 70, 255, 0.12);
  color: #f5e6ff;}body.piano-app-page[data-page="piano"] .github-icon-card::before {
  content: "";
  position: absolute;
  inset: 6px;
  z-index: 0;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .github-icon-card::before {
  border: 1px solid rgba(167, 61, 255, 0.28);
  box-shadow: inset 0 0 8px rgba(167, 61, 255, 0.08);}body.piano-app-page[data-page="piano"] .github-icon-card svg {
  position: relative;
  z-index: 1;
  width: 40.5%;
  height: 40.5%;}body.piano-app-page[data-page="piano"][data-theme="dark"] .github-icon-card svg {
  fill: currentColor;
  filter: drop-shadow(0 0 0.35rem rgba(168, 70, 255, 0.32));}body.piano-app-page[data-page="piano"] .chord-details-layout .chord-info-card p {
  font-size: 0.9rem;}body.piano-app-page[data-page="piano"] .notation-toggle button[aria-pressed="true"] {
  box-shadow: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .notation-toggle button[aria-pressed="true"] {
  border-color: #ff68c8;
  background: #2f0221f5;
  color: #fff;}/* Keys and progressions page in the homepage dashboard skin. */
body.piano-app-page[data-page="piano"] .key-progressions-page {
  gap: clamp(0.48rem, 0.86vw, 0.72rem);
  padding-bottom: clamp(0.5rem, 1.1vw, 0.85rem);}body.piano-app-page[data-page="piano"] .key-progressions-page .hero-section {
  margin-bottom: 0;}body.piano-app-page[data-page="piano"] .key-selector-panel {
  gap: 0.5rem;
  min-height: 0;
  padding: clamp(0.68rem, 1vw, 0.86rem);
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-selector-panel {
  border-color: rgba(140, 53, 255, 0.55);
  box-shadow:
    0 0 0 1px rgba(255, 79, 202, 0.14),
    0 0 24px rgba(67, 19, 121, 0.26),
    inset 0 0 0 1px rgba(255, 255, 255, 0.035);}body.piano-app-page[data-page="piano"] .key-selector-panel h2,
body.piano-app-page[data-page="piano"] .key-progressions-page .section-heading-row h2 {
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(0.9rem, 1.45vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.25;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-selector-panel h2,
body.piano-app-page[data-page="piano"][data-theme="dark"] .key-progressions-page .section-heading-row h2 {
  color: #fff;
  text-shadow:
    0 0 8px rgba(244, 236, 255, 0.36),
    0 0 14px rgba(167, 61, 255, 0.28);}body.piano-app-page[data-page="piano"] .key-selector-panel .helper-text {
  font-size: clamp(0.92rem, 1.25vw, 1.02rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-selector-panel .helper-text {
  color: #d9d0e8;}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
  gap: 0.32rem;
  margin-top: 0;}body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
  flex: 1 1 4.25rem;
  min-width: 4rem;
  min-height: 2.1rem;
  padding: 0.32rem 0.44rem;
  font-size: 0.94rem;}body.piano-app-page[data-page="piano"] .key-summary-card {
  min-height: clamp(5.8rem, 11vw, 7.3rem);
  padding: clamp(0.78rem, 1.25vw, 1rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card {
  border-color: rgba(140, 53, 255, 0.48);
  background:
    radial-gradient(circle at 5% 44%, rgba(56, 217, 255, 0.2), transparent 7.6rem),
    radial-gradient(circle at 93% 22%, rgba(255, 79, 202, 0.16), transparent 10rem),
    linear-gradient(180deg, rgba(12, 16, 32, 0.92), rgba(4, 7, 16, 0.96));}body.piano-app-page[data-page="piano"] .key-summary-card .section-kicker {
  margin-bottom: 0.24rem;}body.piano-app-page[data-page="piano"] .key-summary-card h2 {
  font-size: clamp(1.65rem, 3.6vw, 3rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card h2 {
  text-shadow:
    0 0 8px rgba(244, 236, 255, 0.42),
    0 0 20px rgba(167, 61, 255, 0.32);}body.piano-app-page[data-page="piano"] .key-summary-card .scale-line {
  max-width: 100%;
  font-family: var(--font-ui);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  letter-spacing: 0.05em;
  overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-summary-card .scale-line {
  color: #f0e8ff;}body.piano-app-page[data-page="piano"] .key-summary-icon {
  width: clamp(2.5rem, 5vw, 3.4rem);}body.piano-app-page[data-page="piano"] .key-summary-sprite {
  width: clamp(4.6rem, 9vw, 6.6rem);}body.piano-app-page[data-page="piano"] .key-chords {
  gap: clamp(0.48rem, 0.86vw, 0.72rem);}body.piano-app-page[data-page="piano"] .key-progressions-page .section-heading-row-with-asset {
  margin-bottom: 0;
  padding: clamp(0.62rem, 0.95vw, 0.78rem) clamp(0.74rem, 1.15vw, 1rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-progressions-page .section-heading-row-with-asset {
  border-color: rgba(140, 53, 255, 0.42);}body.piano-app-page[data-page="piano"] .section-heading-icon {
  width: clamp(2.25rem, 4.3vw, 3rem);}body.piano-app-page[data-page="piano"] .key-chord-grid {
  gap: clamp(0.48rem, 0.86vw, 0.72rem);}body.piano-app-page[data-page="piano"] .key-chord-grid .card {
  min-height: 0;
  gap: 0.48rem;
  padding: 0.62rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title {
  gap: 0.44rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .card-title h3 {
  font-family: var(--font-ui);
  font-size: clamp(1.05rem, 1.55vw, 1.25rem);
  letter-spacing: 0.04em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .card-title h3 {
  color: #f8f1ff;}body.piano-app-page[data-page="piano"] .key-chord-grid .card > p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.15;}body.piano-app-page[data-page="piano"][data-theme="dark"] .key-chord-grid .card > p {
  color: #d9d0e8;}body.piano-app-page[data-page="piano"] .key-chord-grid .keyboard {
  overflow: hidden;}body.piano-app-page[data-page="piano"] .progressions-panel {
  gap: clamp(0.5rem, 0.9vw, 0.74rem);
  padding: clamp(0.72rem, 1.05vw, 0.92rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel {
  border-color: rgba(140, 53, 255, 0.55);
  box-shadow:
    0 0 0 1px rgba(255, 79, 202, 0.14),
    0 0 24px rgba(67, 19, 121, 0.26),
    inset 0 0 0 1px rgba(255, 255, 255, 0.035);}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
  padding-right: clamp(5.2rem, 10vw, 7.2rem);}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
  width: clamp(4.4rem, 9vw, 6.3rem);}body.piano-app-page[data-page="piano"] .progressions-panel ol {
  gap: 0.5rem;}body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
  min-height: 3.65rem;
  padding: 0.52rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel ol > li {
  background:
    linear-gradient(90deg, rgba(167, 61, 255, 0.1), transparent 42%),
    linear-gradient(180deg, rgba(8, 12, 26, 0.9), rgba(3, 7, 18, 0.84));}body.piano-app-page[data-page="piano"] .progressions-panel span {
  font-size: clamp(1rem, 1.4vw, 1.15rem);}body.piano-app-page[data-page="piano"] .progressions-panel .progression-chords {
  font-size: clamp(0.95rem, 1.25vw, 1.08rem);
  line-height: 1.12;}body.piano-app-page[data-page="piano"][data-theme="dark"] .progressions-panel .progression-chords {
  color: #f0e8ff;}@media (min-width: 981px) {body.piano-app-page[data-page="piano"]:has(.key-progressions-page) {
    height: auto;
    overflow-y: auto;}body.piano-app-page[data-page="piano"]:has(.key-progressions-page) .app-shell {
    grid-template-rows: auto;
    height: auto;
    min-height: calc(100svh - (var(--home-dashboard-padding, 0.5rem) * 2));
    overflow: visible;}body.piano-app-page[data-page="piano"] main.key-progressions-page {
    display: grid;
    grid-template-rows: auto;
    gap: clamp(0.48rem, 0.86vw, 0.72rem);
    min-height: 0;
    overflow: visible;}body.piano-app-page[data-page="piano"] .key-chord-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .key-chord-grid .play-button,
body.piano-app-page[data-page="piano"] .key-chord-grid .repeat-button {
    width: 2.2rem;
    height: 2.2rem;}body.piano-app-page[data-page="piano"] .key-chord-grid .piano-svg {
    max-height: 4.9rem;}
}@media (max-width: 980px) {body.piano-app-page[data-page="piano"] .key-progressions-page {
    gap: 0.65rem;}
}@media (max-width: 620px) {body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
    flex-basis: 4.8rem;}body.piano-app-page[data-page="piano"] .key-summary-card {
    justify-items: start;
    text-align: left;}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
    padding-right: 0;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
    display: none;}
}@media (min-width: 981px) {body.piano-app-page[data-page="piano"] .chord-details-layout {
    grid-template-columns: minmax(11rem, 0.38fr) minmax(0, 1fr) auto;}
}@media (min-width: 1024px) and (max-width: 1366px) and (orientation: landscape) {body.piano-app-page[data-page="piano"] {
    --home-chord-details-height: clamp(5rem, 8svh, 5.45rem);}
}@media (max-width: 820px) {body.piano-app-page[data-page="piano"] .github-icon-card {
    width: clamp(3rem, 15vw, 4rem);
    min-height: clamp(3rem, 15vw, 4rem);
    justify-self: end;}
}@media (orientation: portrait) and (max-width: 1180px) {body.piano-app-page[data-page="piano"] {
    --home-dashboard-gap: clamp(0.5rem, 1.8vw, 0.8rem);
    --home-dashboard-padding: clamp(0.5rem, 2vw, 0.85rem);
    width: 100%;
    min-width: 0;
    max-width: 100%;
    height: auto !important;
    min-height: 100svh;
    padding: var(--home-dashboard-padding);
    overflow-x: hidden;
    overflow-y: auto !important;}body.piano-app-page[data-page="piano"]::after {
    content: "For the best experience, rotate your device.";
    position: fixed;
    right: max(0.75rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    z-index: 90;
    max-width: min(19rem, calc(100vw - 1.5rem));
    padding: 0.45rem 0.62rem;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: clamp(0.78rem, 1.8vw, 0.9rem);
    line-height: 1.15;
    pointer-events: none;
    text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"]::after {
    border: 1px solid rgba(255, 104, 200, 0.58);
    background: rgba(5, 2, 17, 0.86);
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.05),
      0 0.65rem 1.4rem rgba(0, 0, 0, 0.28),
      0 0 1rem rgba(167, 61, 255, 0.18);
    color: #f4ecff;}body.piano-app-page[data-page="piano"] .app-shell,
body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] .chord-workspace,
body.piano-app-page[data-page="piano"] .chord-display,
body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-left-column,
body.piano-app-page[data-page="piano"] .chord-details-layout,
body.piano-app-page[data-page="piano"] .key-progressions-page {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow: visible !important;}body.piano-app-page[data-page="piano"] .app-shell {
    display: grid;
    grid-template-rows: auto;
    gap: var(--home-dashboard-gap);}body.piano-app-page[data-page="piano"] .site-header {
    position: relative;
    inset: auto;
    height: auto;
    min-height: 0;
    align-items: flex-start;
    gap: 0.55rem;
    padding: clamp(0.48rem, 1.6vw, 0.75rem);
    overflow: visible;}body.piano-app-page[data-page="piano"] .site-brand-lockup,
body.piano-app-page[data-page="piano"] .site-actions {
    margin-top: 0;}body.piano-app-page[data-page="piano"] .site-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
    gap: 0.42rem;
    width: 100%;}body.piano-app-page[data-page="piano"] .header-control,
body.piano-app-page[data-page="piano"] .header-select {
    width: 100%;
    min-width: 0;
    min-height: 2.35rem;
    padding: 0.4rem 1.55rem 0.4rem 0.58rem;
    font-size: clamp(0.78rem, 2vw, 0.95rem);}body.piano-app-page[data-page="piano"] .header-icon-button {
    width: 2.35rem;
    min-width: 2.35rem;
    min-height: 2.35rem;}body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] .chord-workspace,
body.piano-app-page[data-page="piano"] .chord-display,
body.piano-app-page[data-page="piano"] .key-progressions-page {
    display: grid;
    grid-template-rows: auto;
    gap: var(--home-dashboard-gap);}body.piano-app-page[data-page="piano"] .hero-section {
    margin: 0;
    padding: 0;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    aspect-ratio: auto;
    height: clamp(7.4rem, 22vw, 10rem);
    min-height: 0;
    max-height: none;}body.piano-app-page[data-page="piano"] .hero-image-frame .hero-banner-image {
    object-fit: cover;
    object-position: 45% center;}body.piano-app-page[data-page="piano"] .selector-panel,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.55rem;
    min-height: 0;
    padding: clamp(0.65rem, 1.8vw, 0.85rem);
    overflow: visible;}body.piano-app-page[data-page="piano"] .category-tabs,
body.piano-app-page[data-page="piano"] .type-menu,
body.piano-app-page[data-page="piano"] .root-selector .root-menu,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu {
    gap: 0.28rem;
    overflow: visible;}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
    flex: 1 1 clamp(4.45rem, 21vw, 6rem);
    width: auto;
    min-width: 0;
    min-height: 2rem;
    padding: 0.3rem 0.36rem;
    font-size: clamp(0.78rem, 1.9vw, 0.92rem);
    white-space: normal;}body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-details-layout,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-layout,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card {
    grid-template-columns: minmax(0, 1fr) !important;}body.piano-app-page[data-page="piano"] .chord-left-column {
    grid-template-rows: auto;
    gap: var(--home-dashboard-gap);}body.piano-app-page[data-page="piano"] .card,
body.piano-app-page[data-page="piano"] .progressions-panel,
body.piano-app-page[data-page="piano"] .section-heading-row-with-asset {
    padding: clamp(0.62rem, 1.8vw, 0.82rem);}body.piano-app-page[data-page="piano"] .chord-summary-card {
    grid-template-columns: clamp(4.4rem, 11vw, 5.25rem) minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .chord-emblem,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-emblem {
    width: clamp(4.4rem, 11vw, 5.25rem);}body.piano-app-page[data-page="piano"] .chord-symbol,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-symbol {
    min-height: clamp(4.4rem, 11vw, 5.25rem);
    font-size: clamp(1.45rem, 4vw, 1.85rem);}body.piano-app-page[data-page="piano"] .chord-heading-row h2,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card [data-home-progression-title],
body.piano-app-page[data-page="piano"] .key-summary-card h2 {
    font-size: clamp(1.25rem, 4.6vw, 2rem);}body.piano-app-page[data-page="piano"] .piano-card {
    grid-template-rows: auto auto auto;
    gap: 0.38rem;
    min-height: 0 !important;}body.piano-app-page[data-page="piano"] .piano-card-header,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
    display: grid !important;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0.4rem;
    align-items: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
    grid-template-columns: auto auto minmax(0, 1fr) auto;}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button,
body.piano-app-page[data-page="piano"] .octave-toggle {
    width: clamp(2.55rem, 7vw, 3.1rem);
    height: clamp(2.55rem, 7vw, 3.1rem);
    min-width: clamp(2.55rem, 7vw, 3.1rem);
    min-height: clamp(2.55rem, 7vw, 3.1rem);}body.piano-app-page[data-page="piano"] .piano-card-header > .piano-metrics {
    flex-basis: auto;
    min-width: 0;}body.piano-app-page[data-page="piano"] .piano-metric-row,
body.piano-app-page[data-page="piano"] .note-line {
    grid-template-columns: minmax(3.75rem, auto) minmax(0, 1fr);
    gap: 0.34rem;}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline],
body.piano-app-page[data-page="piano"] [data-progression-chords] {
    font-size: clamp(0.78rem, 2vw, 0.95rem);
    overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"] .keyboard-legend {
    font-size: clamp(0.74rem, 1.7vw, 0.85rem);}body.piano-app-page[data-page="piano"] .piano-card .keyboard {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .piano-card .piano-svg,
body.piano-app-page[data-page="piano"] .key-chord-grid .piano-svg,
body.piano-app-page[data-page="piano"] .progression-keyboard .piano-svg,
body.piano-app-page[data-page="piano"] .homepage-progression-animation .progression-keyboard .piano-svg {
    width: 100%;
    min-width: 0 !important;
    height: auto;
    max-height: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
    align-content: start;
    height: auto;}body.piano-app-page[data-page="piano"] .key-summary-card {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    min-height: 0;}body.piano-app-page[data-page="piano"] .key-summary-card .scale-line,
body.piano-app-page[data-page="piano"] .progressions-panel .progression-chords {
    font-size: clamp(0.9rem, 2.2vw, 1.05rem);}body.piano-app-page[data-page="piano"] .key-summary-sprite {
    display: none;}body.piano-app-page[data-page="piano"] .key-chord-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
    padding-right: clamp(3.8rem, 10vw, 5rem);}body.piano-app-page[data-page="piano"] .progressions-panel ol > li {
    min-height: 0;}
}@media (max-width: 768px) {body.piano-app-page[data-page="piano"] {
    padding: 0.5rem;}body.piano-app-page[data-page="piano"] .site-header {
    padding: 0.5rem;}body.piano-app-page[data-page="piano"] .site-actions {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;}body.piano-app-page[data-page="piano"] #theme-menu {
    grid-column: 1 / -2;}body.piano-app-page[data-page="piano"] .hero-image-frame {
    height: clamp(7.5rem, 36vw, 9.75rem);}body.piano-app-page[data-page="piano"] .category-tabs button,
body.piano-app-page[data-page="piano"] .type-menu button,
body.piano-app-page[data-page="piano"] .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .key-selector-panel .root-menu button {
    flex-basis: clamp(4rem, 29vw, 5.15rem);
    min-height: 1.95rem;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card,
body.piano-app-page[data-page="piano"] .key-summary-card {
    grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .chord-emblem,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-emblem {
    grid-column: 1;
    grid-row: auto;
    width: 4.35rem;}body.piano-app-page[data-page="piano"] .chord-symbol,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-symbol {
    min-height: 4.35rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-heading-row {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .piano-card-header,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
    grid-template-columns: auto auto;}body.piano-app-page[data-page="piano"] .piano-card-header > .piano-metrics,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header > .piano-metrics {
    grid-column: 1 / -1;
    grid-row: auto;}body.piano-app-page[data-page="piano"] .octave-toggle,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header .octave-toggle {
    grid-column: auto;
    justify-self: end;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .key-chord-grid {
    grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .progressions-panel .section-heading-row {
    padding-right: 0;}body.piano-app-page[data-page="piano"] .progressions-panel-sprite {
    display: none;}
}@media (min-width: 933px), (min-width: 768px) and (min-height: 431px) {body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel {
    row-gap: 0.25rem;
    padding: 0.25rem clamp(0.5rem, 1.35vw, 0.62rem) 0.34rem;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .selector-group {
    gap: 0.25rem;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector {
    margin-top: 0;}body.piano-app-page[data-page="piano"] .selector-panel .root-selector .root-menu,
body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .category-tabs,
body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .type-menu {
    display: grid;
    flex-wrap: nowrap;
    width: 100%;
    gap: clamp(0.14rem, 0.28vw, 0.22rem);}body.piano-app-page[data-page="piano"] .selector-panel .root-selector .root-menu {
    grid-template-columns: repeat(12, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .category-tabs {
    grid-template-columns: repeat(5, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .type-menu {
    grid-template-columns: repeat(7, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .selector-panel .root-selector .root-menu button,
body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .category-tabs button,
body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .type-menu button {
    flex: initial;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    padding-inline: clamp(0.1rem, 0.28vw, 0.24rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;}body.piano-app-page[data-page="piano"] .selector-panel .root-selector .root-menu button {
    font-size: clamp(0.62rem, 0.82vw, 0.86rem);}body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .category-tabs button,
body.piano-app-page[data-page="piano"] .selector-panel .chord-type-selector .type-menu button {
    font-size: clamp(0.66rem, 0.86vw, 0.88rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button {
    font-size: 1rem;}
}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button {
  min-width: 0;
  min-height: 1.68rem;
  padding-block: 0.24rem;
  border-radius: 3px;
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1;
  text-align: center;
  text-transform: none;}body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button {
  border: 1px solid rgba(167, 61, 255, 0.7);
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));
  color: var(--pv-text);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 10px rgba(167, 61, 255, 0.12);}body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button:focus-visible {
  border-color: #ff68c8;
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));
  color: var(--pv-text);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 16px rgba(255, 104, 200, 0.18);}body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button:not(.is-active):not([aria-pressed="true"]) {
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));}body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button[aria-pressed="true"],
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button.is-active,
body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button[aria-pressed="true"] {
  border-color: #d9bcff;
  background:
    linear-gradient(180deg, rgba(137, 52, 255, 0.94), rgba(57, 7, 110, 0.96));
  color: #fff;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.45);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.16),
    0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"][data-theme="dark"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button:not(.is-active):not([aria-pressed="true"]) {
  background: #130225f5;}@media (min-width: 933px), (min-width: 768px) and (min-height: 431px) {body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .root-selector .root-menu button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .category-tabs button {
    min-height: clamp(1.86rem, 4svh, 2.08rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) .selector-panel .chord-type-selector .type-menu button {
    min-height: clamp(1.82rem, 3.8svh, 2.02rem);}
}@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"]::after {
    content: none;
    display: none;}body.piano-app-page[data-page="piano"] main > .hero-section {
    display: none;
    margin: 0;
    padding: 0;}body.piano-app-page[data-page="piano"] .site-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr)) repeat(2, 2.35rem);
    align-items: center;
    gap: 0.28rem;}body.piano-app-page[data-page="piano"] [data-header-menu-button] {
    font-size: 1rem;
    font-weight: 700;}body.piano-app-page[data-page="piano"] .header-menu[data-header-menu-for="instrument-family-menu"],
body.piano-app-page[data-page="piano"] .header-menu[data-header-menu-for="piano-area-menu"] {
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"] .header-menu[data-header-menu-for="theme-menu"] {
    width: 2.35rem;
    min-width: 2.35rem;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="instrument-family-menu"],
body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="piano-area-menu"] {
    display: inline-flex;
    justify-content: center;
    width: 100%;
    min-width: 0;
    height: 2.35rem;
    min-height: 2.35rem;
    padding: 0 0.35rem;
    overflow: hidden;
    text-align: center;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="theme-menu"],
body.piano-app-page[data-page="piano"] .header-icon-button,
body.piano-app-page[data-page="piano"] .mobile-github-link {
    display: inline-grid;
    place-items: center;
    width: 2.35rem;
    min-width: 2.35rem;
    height: 2.35rem;
    min-height: 2.35rem;
    padding: 0;}body.piano-app-page[data-page="piano"] .header-favorite-button {
    display: none;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="piano-area-menu"] [data-header-menu-value] {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="piano-area-menu"],
body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="theme-menu"] {
    justify-content: center;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="theme-menu"] [data-header-menu-value],
body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="piano-area-menu"] .header-menu-chevron,
body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="theme-menu"] .header-menu-chevron {
    display: none;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="theme-menu"]::before {
    content: "";
    width: 1.2rem;
    height: 1.2rem;
    background: currentColor;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;}body.piano-app-page[data-page="piano"] .header-menu-button[data-header-menu-for="theme-menu"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M17.8 2.2a2.9 2.9 0 0 1 4.1 4.1l-8 8-4.1-4.1 8-8ZM8.4 11.5l4.1 4.1c-1.48 1.18-3.27 1.72-5.36 1.62-.24 1.66-1.61 3.08-4.11 4.26.86-1.42 1.1-2.68.73-3.77-.49-1.45.08-3.04 1.37-3.86l3.27-2.35Z'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M17.8 2.2a2.9 2.9 0 0 1 4.1 4.1l-8 8-4.1-4.1 8-8ZM8.4 11.5l4.1 4.1c-1.48 1.18-3.27 1.72-5.36 1.62-.24 1.66-1.61 3.08-4.11 4.26.86-1.42 1.1-2.68.73-3.77-.49-1.45.08-3.04 1.37-3.86l3.27-2.35Z'/%3E%3C/svg%3E");}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button[data-header-menu-for="piano-area-menu"]::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button[data-header-menu-for="theme-menu"]::before {
    background: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button[data-header-menu-for="piano-area-menu"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M9 18.5A3.5 3.5 0 1 1 7 15.34V5.2a1 1 0 0 1 .8-.98l10-2A1 1 0 0 1 19 3.2v11.3a3.5 3.5 0 1 1-2-3.16V7.42l-8 1.6V18.5Z'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M9 18.5A3.5 3.5 0 1 1 7 15.34V5.2a1 1 0 0 1 .8-.98l10-2A1 1 0 0 1 19 3.2v11.3a3.5 3.5 0 1 1-2-3.16V7.42l-8 1.6V18.5Z'/%3E%3C/svg%3E");}body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button[data-header-menu-for="theme-menu"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M17.8 2.2a2.9 2.9 0 0 1 4.1 4.1l-8 8-4.1-4.1 8-8ZM8.4 11.5l4.1 4.1c-1.48 1.18-3.27 1.72-5.36 1.62-.24 1.66-1.61 3.08-4.11 4.26.86-1.42 1.1-2.68.73-3.77-.49-1.45.08-3.04 1.37-3.86l3.27-2.35Z'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M17.8 2.2a2.9 2.9 0 0 1 4.1 4.1l-8 8-4.1-4.1 8-8ZM8.4 11.5l4.1 4.1c-1.48 1.18-3.27 1.72-5.36 1.62-.24 1.66-1.61 3.08-4.11 4.26.86-1.42 1.1-2.68.73-3.77-.49-1.45.08-3.04 1.37-3.86l3.27-2.35Z'/%3E%3C/svg%3E");}body.piano-app-page[data-page="piano"][data-theme="dark"] .mobile-github-link {
    color: #a73dff;}body.piano-app-page[data-page="piano"] .mobile-github-link svg {
    width: 1.34rem;
    height: 1.34rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .mobile-github-link svg {
    fill: currentColor;}body.piano-app-page[data-page="piano"] .app-shell,
body.piano-app-page[data-page="piano"] main,
body.piano-app-page[data-page="piano"] .chord-workspace,
body.piano-app-page[data-page="piano"] .chord-display,
body.piano-app-page[data-page="piano"] .chord-layout,
body.piano-app-page[data-page="piano"] .chord-left-column,
body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"] .related-chords-card,
body.piano-app-page[data-page="piano"] .progression-summary-card,
body.piano-app-page[data-page="piano"] .progression-customizer,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select {
    min-width: 0;
    max-width: 100%;}body.piano-app-page[data-page="piano"] .chord-left-column {
    display: contents;}body.piano-app-page[data-page="piano"] .chord-summary-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card {
    order: 1;
    grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .piano-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card {
    order: 2;}body.piano-app-page[data-page="piano"] .related-chords-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
    order: 3;}body.piano-app-page[data-page="piano"] .chord-emblem,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-emblem {
    display: none;}body.piano-app-page[data-page="piano"] .chord-heading-row,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-heading-row {
    grid-column: 1;}body.piano-app-page[data-page="piano"] [data-dynamic-chord-title],
body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-home-progression-title] {
    font-size: clamp(1.25rem, 4.6vw, 2rem);}body.piano-app-page[data-page="piano"] .chord-workspace > .selector-panel {
    gap: 0.34rem;
    padding: 0.48rem;}body.piano-app-page[data-page="piano"] .selector-welcome {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message {
    display: none;}body.piano-app-page[data-page="piano"] .chord-workspace .selector-group {
    display: grid;
    gap: 0.28rem;}body.piano-app-page[data-page="piano"] .chord-workspace .selector-panel-kicker,
body.piano-app-page[data-page="piano"] .chord-workspace .selector-label {
    margin: 0;
    line-height: 1;}body.piano-app-page[data-page="piano"] .chord-workspace .category-tabs,
body.piano-app-page[data-page="piano"] .chord-workspace .type-menu,
body.piano-app-page[data-page="piano"] .chord-workspace .root-selector .root-menu {
    justify-content: center;
    gap: 0.18rem;
    width: 100%;}body.piano-app-page[data-page="piano"] .chord-workspace .root-selector .root-menu {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));}body.piano-app-page[data-page="piano"] .chord-workspace .category-tabs button,
body.piano-app-page[data-page="piano"] .chord-workspace .type-menu button,
body.piano-app-page[data-page="piano"] .chord-workspace .root-selector .root-menu button {
    flex: 1 1 3.6rem;
    width: auto;
    min-width: 0;
    min-height: 1.85rem;
    padding: 0.16rem 0.22rem;
    font-size: 0.74rem;
    line-height: 1.05;}body.piano-app-page[data-page="piano"] .chord-workspace .category-tabs button {
    flex-basis: 4.2rem;}body.piano-app-page[data-page="piano"] .chord-workspace .type-menu button {
    flex-basis: 4.8rem;}body.piano-app-page[data-page="piano"] .piano-card-header,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
    display: grid !important;
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    gap: 0.28rem;
    align-items: center;}body.piano-app-page[data-page="piano"] .piano-card .play-button,
body.piano-app-page[data-page="piano"] .piano-card .repeat-button,
body.piano-app-page[data-page="piano"] .octave-toggle {
    width: 2.55rem;
    height: 2.55rem;
    min-width: 2.55rem;
    min-height: 2.55rem;}body.piano-app-page[data-page="piano"] .piano-card .play-button {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .piano-card .repeat-button {
    grid-column: 2;}body.piano-app-page[data-page="piano"] .octave-toggle,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header .octave-toggle {
    grid-column: 4;
    grid-row: 1;
    justify-self: end;}body.piano-app-page[data-page="piano"] .piano-card-header > .piano-metrics,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header > .piano-metrics {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    min-width: 0;
    flex-basis: auto;}body.piano-app-page[data-page="piano"] .piano-metric-row,
body.piano-app-page[data-page="piano"] .note-line {
    grid-template-columns: minmax(3.15rem, max-content) minmax(0, 1fr);
    gap: 0.24rem;
    align-items: start;}body.piano-app-page[data-page="piano"] .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"] .note-line .stat-label {
    font-size: 0.72rem;
    line-height: 1.1;}body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-dynamic-chord-notes-inline],
body.piano-app-page[data-page="piano"] [data-progression-chords] {
    min-width: 0;
    font-size: 0.82rem;
    line-height: 1.1;
    overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header > .piano-metrics {
    grid-column: 3;
    grid-row: 1;
    align-self: stretch;
    width: 100%;
    height: 2.75rem;
    min-height: 2.75rem;
    align-content: center;
    overflow: hidden;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-metric-row,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line {
    grid-template-columns: minmax(2.65rem, max-content) minmax(0, 1fr);
    gap: 0.18rem;
    align-items: center;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-metric-row {
    padding-bottom: 0.08rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line {
    padding-top: 0.08rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line .stat-label {
    font-size: 0.56rem;
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .formula-line,
body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-progression-chords] {
    font-size: 0.62rem;
    line-height: 1;}body.piano-app-page[data-page="piano"] .chord-info-card,
body.piano-app-page[data-page="piano"] .related-chords-card,
body.piano-app-page[data-page="piano"] .chord-left-column .related-chords-card,
body.piano-app-page[data-page="piano"] .github-icon-card,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-songs-card {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard .piano-svg {
    width: 100%;
    min-width: 0 !important;
    max-width: 100%;
    height: auto !important;
    max-height: 9rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
    grid-template-columns: minmax(0, 1fr) minmax(7.4rem, 0.78fr);
    align-items: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main {
    grid-column: 1 / -1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side {
    grid-column: 1;
    grid-row: 2;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
    gap: 0.2rem;
    padding: 0.44rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid button {
    font-size: 0.74rem;
    font-weight: 400;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select {
    display: grid;
    grid-column: 2;
    grid-row: 2;
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    align-self: stretch;
    gap: 0.28rem;
    padding: 0.42rem;
    border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-mobile-formula-select {
    border: 1px solid rgba(167, 61, 255, 0.7);
    background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.035),
      0 0 10px rgba(167, 61, 255, 0.12);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open {
    display: contents;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open .selector-label {
    grid-column: 2;
    grid-row: 2;
    align-self: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open .progression-mobile-formula-button {
    grid-column: 2;
    grid-row: 2;
    align-self: end;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-button {
    width: 100%;
    min-width: 0;
    overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-list {
    display: grid;
    grid-column: 1 / -1;
    grid-row: 3;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.14rem;
    min-width: 0;
    padding: 0.42rem;
    border-radius: 3px;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-mobile-formula-list {
    border: 1px solid rgba(167, 61, 255, 0.7);
    background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.035),
      0 0 10px rgba(167, 61, 255, 0.12);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-list[hidden] {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-option {
    min-width: 0;
    min-height: 2rem;
    padding: 0.14rem 0.18rem;
    line-height: 1.05;
    overflow-wrap: anywhere;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer h2 {
    margin: 0;
    padding-right: 0;
    font-size: 0.76rem;
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    gap: 0.14rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer .selector-label {
    margin: 0;
    font-size: 0.62rem;
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode #progression-formula-title,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-formula-title,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select {
    min-height: 2rem;
    padding: 0.14rem 0.18rem;
    font-size: 0.76rem;
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button {
    gap: 0.08rem;
    min-height: 2.2rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button span {
    font-size: 0.56rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button strong {
    font-size: 0.88rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode {
    --progression-mobile-gap: clamp(0.12rem, 0.55svh, 0.26rem);
    --progression-mobile-card-padding: clamp(0.22rem, 0.85svh, 0.36rem);
    --progression-mobile-button-height: clamp(1.56rem, 4.2svh, 1.9rem);
    --progression-mobile-font-size: clamp(0.62rem, 1.95vw, 0.74rem);
    height: auto !important;
    min-height: 100svh !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .app-shell {
    grid-template-rows: auto minmax(0, 1fr);
    gap: var(--progression-mobile-gap);
    height: auto !important;
    min-height: calc(100svh - 1rem) !important;
    max-height: none !important;
    overflow: visible !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode main,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-workspace,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-display,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-layout {
    min-height: 0;
    overflow: visible !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode main {
    height: auto !important;
    max-height: none !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-workspace {
    grid-template-rows: auto auto !important;
    gap: var(--progression-mobile-gap);
    height: auto !important;
    max-height: none !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-display,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-layout {
    height: auto !important;
    max-height: none !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-display {
    grid-template-rows: auto auto !important;
    gap: var(--progression-mobile-gap);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-layout {
    grid-template-rows: auto auto auto !important;
    gap: var(--progression-mobile-gap);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
    gap: var(--progression-mobile-gap);
    padding: var(--progression-mobile-card-padding);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer-section {
    gap: calc(var(--progression-mobile-gap) * 0.7);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select {
    gap: calc(var(--progression-mobile-gap) * 0.7);
    padding: var(--progression-mobile-card-padding);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-utility-row {
    gap: calc(var(--progression-mobile-gap) * 0.55);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder .selector-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer .selector-label {
    font-size: clamp(0.48rem, 1.6vw, 0.58rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-option {
    min-height: var(--progression-mobile-button-height);
    padding: clamp(0.08rem, 0.45svh, 0.14rem) clamp(0.12rem, 0.75vw, 0.18rem);
    font-size: var(--progression-mobile-font-size);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-button {
    min-height: var(--progression-mobile-button-height);
    font-size: clamp(0.54rem, 1.65vw, 0.68rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card {
    gap: calc(var(--progression-mobile-gap) * 0.55);
    padding: var(--progression-mobile-card-padding) clamp(0.34rem, 1.3vw, 0.5rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .chord-heading-row {
    gap: 0.05rem 0.28rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-home-progression-title] {
    font-size: clamp(0.9rem, 3.25vw, 1.18rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .scale-line {
    font-size: clamp(0.58rem, 1.75vw, 0.72rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .notation-toggle button {
    min-width: 1.78rem;
    min-height: 1.78rem;
    padding: 0;
    font-size: 0.78rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card {
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: var(--progression-mobile-gap);
    padding: var(--progression-mobile-card-padding) clamp(0.34rem, 1.3vw, 0.5rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header {
    gap: calc(var(--progression-mobile-gap) * 0.75);
    padding-bottom: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .play-button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .repeat-button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .octave-toggle {
    width: clamp(2.08rem, 6.2vw, 2.36rem);
    height: clamp(2.08rem, 6.2vw, 2.36rem);
    min-width: clamp(2.08rem, 6.2vw, 2.36rem);
    min-height: clamp(2.08rem, 6.2vw, 2.36rem);
    font-size: clamp(0.56rem, 1.5vw, 0.7rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header .octave-toggle {
    width: clamp(2.08rem, 6.2vw, 2.36rem);
    height: clamp(2.08rem, 6.2vw, 2.36rem);
    min-width: clamp(2.08rem, 6.2vw, 2.36rem);
    min-height: clamp(2.08rem, 6.2vw, 2.36rem);
    font-size: clamp(0.56rem, 1.5vw, 0.7rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header > .piano-metrics {
    height: clamp(2.08rem, 6.2vw, 2.36rem);
    min-height: clamp(2.08rem, 6.2vw, 2.36rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-metric-row,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line {
    gap: 0.12rem;
    padding: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line {
    padding-top: 0.25rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line .stat-label {
    font-size: clamp(0.46rem, 1.3vw, 0.54rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .formula-line,
body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-progression-chords] {
    font-size: clamp(0.5rem, 1.45vw, 0.6rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .keyboard-legend {
    margin: 0;
    font-size: clamp(0.62rem, 1.7vw, 0.74rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .keyboard {
    padding: clamp(0.24rem, 0.9svh, 0.42rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard .piano-svg {
    height: 100% !important;
    max-height: clamp(4.8rem, 15svh, 7.25rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout {
    gap: var(--progression-mobile-gap);
    height: auto !important;
    min-height: clamp(1.9rem, 5.8svh, 2.45rem) !important;
    max-height: none !important;
    overflow: visible !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout .sound-card {
    min-height: 0;
    padding: 0.12rem 0.22rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .sound-card-robot {
    width: clamp(1.55rem, 5.2vw, 2rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer {
    gap: var(--progression-mobile-gap);
    padding: var(--progression-mobile-card-padding);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer h2 {
    font-size: clamp(0.58rem, 1.8vw, 0.68rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button {
    gap: 0.04rem;
    min-height: var(--progression-mobile-button-height);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button span {
    font-size: clamp(0.44rem, 1.3vw, 0.52rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button strong {
    font-size: clamp(0.7rem, 2vw, 0.84rem);}
}@media (max-width: 767px) and (max-height: 700px),
  (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"].is-home-progressions-mode {
    --progression-mobile-gap: 0.08rem;
    --progression-mobile-card-padding: 0.16rem;
    --progression-mobile-button-height: 1.34rem;
    --progression-mobile-font-size: 0.56rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder .selector-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer .selector-label {
    font-size: 0.44rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-degree-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-buttons button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-option {
    min-height: var(--progression-mobile-button-height);
    padding: 0.04rem 0.08rem;
    font-size: var(--progression-mobile-font-size);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid button {
    padding: 0.04rem 0.06rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-button {
    min-height: var(--progression-mobile-button-height);
    padding: 0.04rem 0.08rem;
    font-size: 0.5rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-home-progression-title] {
    font-size: 0.78rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .scale-line {
    font-size: 0.5rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .notation-toggle button {
    min-width: 1.5rem;
    min-height: 1.5rem;
    font-size: 0.66rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .play-button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .repeat-button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header .octave-toggle {
    width: 1.86rem;
    height: 1.86rem;
    min-width: 1.86rem;
    min-height: 1.86rem;
    font-size: 0.52rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card-header > .piano-metrics {
    height: 1.86rem;
    min-height: 1.86rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-metric-row .stat-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .note-line .stat-label {
    font-size: 0.42rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .formula-line,
body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-progression-chords] {
    font-size: 0.46rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .keyboard-legend {
    font-size: 0.52rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .piano-card .keyboard {
    padding: 0.12rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-details-layout {
    height: auto !important;
    min-height: 1.85rem !important;
    max-height: none !important;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .sound-card-robot {
    width: 1.4rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer h2 {
    font-size: 0.52rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button span {
    font-size: 0.4rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-step-button strong {
    font-size: 0.64rem;}
}@media (orientation: portrait) and (max-width: 980px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-step,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard {
    display: block;
    height: auto;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    padding: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .homepage-progression-animation .progression-keyboard .piano-svg {
    display: block;
    width: 100%;
    min-width: 0 !important;
    max-width: 100%;
    height: auto !important;
    max-height: none;}
}@media (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"].is-home-progressions-mode {
    --progression-landscape-scale: 0.53;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode main {
    justify-items: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .chord-workspace {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: none !important;
    transform: none;
    transform-origin: top left;}
}@media (min-width: 933px), (min-width: 768px) and (min-height: 431px) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder {
    grid-template-columns: minmax(0, 1fr) minmax(15rem, 0.32fr);
    grid-template-rows: minmax(0, auto) minmax(0, auto);
    align-items: stretch;
    column-gap: 0.42rem;
    row-gap: clamp(0.16rem, 0.25vw, 0.24rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main {
    grid-column: 1;
    grid-row: 1 / span 2;
    align-self: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message {
    position: relative;
    display: grid;
    grid-column: 2;
    grid-row: 1;
    align-content: start;
    align-self: stretch;
    gap: clamp(0.14rem, 0.28vw, 0.22rem);
    width: 100%;
    min-width: 0;
    padding: clamp(0.28rem, 0.45vw, 0.38rem);
    overflow: hidden;
    border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-info-message {
    border: 1px solid var(--pv-border-bright);
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent 34%),
      linear-gradient(180deg, rgba(7, 8, 24, 0.98), rgba(3, 5, 15, 0.98));
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, 0.055),
      inset 0 -18px 38px rgba(0, 0, 0, 0.28),
      0 0 24px rgba(168, 70, 255, 0.26);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-info-message::before {
    background: repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.035) 0,
      rgba(255, 255, 255, 0.035) 1px,
      transparent 1px,
      transparent 8px
    );
    opacity: 0.28;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message > * {
    position: relative;
    z-index: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message-heading {
    display: grid;
    gap: 0.18rem;
    padding-bottom: clamp(0.16rem, 0.3vw, 0.24rem);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-info-message-heading {
    border-bottom: 1px solid var(--pv-border-bright);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message h2 {
    margin: 0;
    font-family: var(--font-brand);
    font-size: clamp(0.5rem, 0.7vw, 0.66rem);
    line-height: 1.28;
    letter-spacing: 0;
    text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-info-message h2 {
    color: var(--pv-text);
    text-shadow:
      0 0 10px rgba(248, 242, 255, 0.44),
      0 0 18px rgba(187, 69, 255, 0.46);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-info-message > p {
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.24;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-info-message > p {
    color: var(--pv-text);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side {
    grid-column: 2;
    grid-row: 2;
    align-self: stretch;
    padding: clamp(0.32rem, 0.52vw, 0.42rem);}
}@media (orientation: landscape) and (min-width: 981px) {body.piano-app-page[data-page="piano"]::after {
    content: none;}
}body.piano-app-page[data-page="piano"] .orientation-advisory {
  display: none;
  position: fixed;
  inset: 0;
  min-height: 100dvh;
  z-index: 9999;
  box-sizing: border-box;
  padding: clamp(1rem, 4vw, 2rem);
  overflow: hidden;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory {
  background:
    radial-gradient(circle at 50% 42%, rgba(168, 70, 255, 0.2), transparent 18rem),
    rgba(2, 2, 10, 0.82);
  color: var(--pv-text, #f8f2ff);}body.piano-app-page[data-page="piano"] .orientation-advisory__panel {
  position: relative;
  display: grid;
  gap: 0.85rem;
  width: min(28rem, calc(100vw - 2rem));
  max-width: 100%;
  padding: clamp(1.25rem, 3.4vw, 1.85rem);
  overflow: hidden;
  border-radius: 6px;
  text-align: center;}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory__panel {
  border: 1px solid var(--pv-border-bright, #a846ff);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 45%),
    linear-gradient(135deg, rgba(19, 10, 43, 0.96), rgba(5, 7, 20, 0.98));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 -18px 42px rgba(0, 0, 0, 0.34),
    0 0 28px rgba(168, 70, 255, 0.48),
    0 0 70px rgba(54, 220, 255, 0.14);}body.piano-app-page[data-page="piano"] .orientation-advisory__panel::before {
  content: "";
  position: absolute;
  inset: 6px;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory__panel::before {
  border: 1px solid rgba(54, 220, 255, 0.22);}body.piano-app-page[data-page="piano"] .orientation-advisory__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory__panel::after {
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.035) 0,
    rgba(255, 255, 255, 0.035) 1px,
    transparent 1px,
    transparent 7px
  );
  opacity: 0.32;}body.piano-app-page[data-page="piano"] .orientation-advisory__icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto;
  border-radius: 50%;}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory__icon {
  border: 1px solid rgba(54, 220, 255, 0.58);
  background: rgba(4, 7, 18, 0.78);
  box-shadow:
    inset 0 0 18px rgba(54, 220, 255, 0.18),
    0 0 22px rgba(187, 69, 255, 0.42);}body.piano-app-page[data-page="piano"] .orientation-advisory__icon::before {
  content: "";
  position: absolute;
  width: 1.35rem;
  height: 2rem;
  border-radius: 0.25rem;
  transform: rotate(-18deg);}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory__icon::before {
  border: 2px solid var(--pv-text, #f8f2ff);
  box-shadow: 0 0 12px rgba(248, 242, 255, 0.38);}body.piano-app-page[data-page="piano"] .orientation-advisory__icon::after {
  content: "";
  position: absolute;
  width: 2.28rem;
  height: 2.28rem;
  border: 2px solid transparent;
  border-radius: 50%;
  transform: rotate(34deg);}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory__icon::after {
  border-top-color: var(--pv-accent-3, #36dcff);
  border-right-color: var(--pv-accent-3, #36dcff);
  filter: drop-shadow(0 0 6px rgba(54, 220, 255, 0.8));}body.piano-app-page[data-page="piano"] .orientation-advisory p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-brand);
  font-size: clamp(0.72rem, 2.2vw, 0.98rem);
  line-height: 1.75;
  letter-spacing: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"] .orientation-advisory p {
  color: var(--pv-text, #f8f2ff);
  text-shadow:
    0 0 10px rgba(248, 242, 255, 0.42),
    0 0 20px rgba(187, 69, 255, 0.38);}@media (orientation: landscape) and (hover: none) and (pointer: coarse) and (max-height: 520px) {body.piano-app-page[data-page="piano"] .orientation-advisory--mobile {
    display: flex;}body.piano-app-page[data-page="piano"] .orientation-advisory__panel {
    width: min(26rem, calc(100vw - 2rem));
    padding: clamp(1rem, 4svh, 1.35rem);}body.piano-app-page[data-page="piano"] .orientation-advisory__icon {
    width: 3rem;
    height: 3rem;}
}@media (orientation: portrait) and (hover: none) and (pointer: coarse) and (min-width: 768px) and (max-width: 1180px) {body.piano-app-page[data-page="piano"] .orientation-advisory--tablet {
    display: flex;}
}body.piano-app-page[data-page="piano"] .guitar-card {
  display: grid !important;
  grid-template-columns: 1fr !important;
  grid-template-rows: auto auto minmax(0, 1fr);
  align-content: stretch;
  gap: 0.42rem;
  min-height: clamp(18rem, 41svh, 23rem);}body.piano-app-page[data-page="piano"] .guitar-card .piano-card-header {
  display: flex !important;
  flex-wrap: nowrap;
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  gap: 0.48rem;
  align-items: center;
  width: 100%;
  min-width: 0;
  padding-bottom: 0.38rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-card .piano-card-header {
  border-bottom: 1px solid rgba(187, 69, 255, 0.68);}body.piano-app-page[data-page="piano"] .guitar-card .play-button,
body.piano-app-page[data-page="piano"] .guitar-card .repeat-button {
  grid-column: auto;
  grid-row: auto;
  flex: 0 0 auto;
  align-self: center;
  justify-self: start;
  width: clamp(3.1rem, 4.5vw, 4.15rem);
  height: clamp(3.1rem, 4.5vw, 4.15rem);
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-card .repeat-button {
  border-color: var(--pv-border-bright);
  background:
    radial-gradient(circle at 48% 45%, rgba(255, 255, 255, 0.12), transparent 1.45rem),
    linear-gradient(180deg, #3c166e, #10081f);
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.08), 0 0 18px var(--pv-glow);}body.piano-app-page[data-page="piano"] .guitar-card .piano-card-header > .piano-metrics {
  flex: 1 1 18rem;
  grid-column: auto;
  grid-template-columns: 1fr;
  gap: 0;
  width: 100%;
  min-width: 18rem;
  margin-left: 0;
  padding: 0;
  border-bottom: 0;}body.piano-app-page[data-page="piano"] .guitar-card .keyboard-legend {
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  justify-self: start;
  margin: 0.05rem 0 0;
  font-size: clamp(0.88rem, 1.25vw, 1.05rem);
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-card .keyboard-legend {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .guitar-card .keyboard {
  display: grid;
  grid-column: 1 / -1 !important;
  grid-row: auto !important;
  align-items: center;
  width: 100%;
  max-height: none;
  margin: 0;
  padding: 0.45rem;
  pointer-events: none;
  overflow: hidden;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-card .keyboard {
  border-color: rgba(168, 70, 255, 0.62);
  box-shadow: inset 0 0 18px rgba(168, 70, 255, 0.1);}body.piano-app-page[data-page="piano"] .guitar-voicing-control {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.42rem;
  width: 100%;
  min-width: 0;
  padding: 0.28rem 0.38rem;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-voicing-control {
  border: 1px solid rgba(187, 69, 255, 0.58);
  background: linear-gradient(180deg, rgba(18, 5, 35, 0.86), rgba(8, 2, 20, 0.92));
  box-shadow: inset 0 0 12px rgba(167, 61, 255, 0.12);}body.piano-app-page[data-page="piano"] .guitar-voicing-kicker,
body.piano-app-page[data-page="piano"] .guitar-voicing-control strong {
  font-family: var(--font-ui);
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"] .guitar-voicing-kicker {
  font-size: clamp(0.88rem, 1.12vw, 1.02rem);}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-voicing-kicker {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"] .guitar-voicing-control strong {
  min-width: 0;
  font-size: clamp(1.05rem, 1.5vw, 1.32rem);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-spacing: 0.08em;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-voicing-control strong {
  color: var(--pv-text);}body.piano-app-page[data-page="piano"] .guitar-next-voicing,
body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle {
  min-height: 2rem;
  padding: 0.18rem 0.52rem;
  border-radius: 4px;
  font-family: var(--font-ui);
  font-size: clamp(0.98rem, 1.18vw, 1.12rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-next-voicing,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-guitar-mode .guitar-play-mode-toggle {
  border: 1px solid var(--pv-border-bright);
  color: var(--pv-text);
  background: linear-gradient(180deg, rgba(167, 61, 255, 0.86), rgba(49, 7, 107, 0.95));
  box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.08), 0 0 12px rgba(167, 61, 255, 0.2);}body.piano-app-page[data-page="piano"] .guitar-next-voicing:hover,
body.piano-app-page[data-page="piano"] .guitar-next-voicing:focus-visible,
body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle:hover,
body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle:focus-visible {
  outline: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-next-voicing:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-next-voicing:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-guitar-mode .guitar-play-mode-toggle:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"].is-guitar-mode .guitar-play-mode-toggle:focus-visible {
  border-color: var(--pv-accent-2);
  color: #fff;
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.12), 0 0 16px rgba(255, 104, 200, 0.35);}body.piano-app-page[data-page="piano"] .guitar-next-voicing:disabled {
  cursor: default;
  box-shadow: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-next-voicing:disabled {
  opacity: 0.52;}body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.24rem;
  white-space: nowrap;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-guitar-mode .guitar-play-mode-toggle span {
  color: var(--pv-muted);}body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle strong {
  letter-spacing: 0;}body.piano-app-page[data-page="piano"][data-theme="dark"].is-guitar-mode .guitar-play-mode-toggle strong {
  color: rgba(232, 223, 255, 0.7);}body.piano-app-page[data-page="piano"][data-theme="dark"].is-guitar-mode .guitar-play-mode-toggle strong.is-active {
  color: var(--pv-accent-2);
  text-shadow: 0 0 8px rgba(255, 104, 200, 0.55);}body.piano-app-page[data-page="piano"] .guitar-svg {
  display: block;
  width: 100%;
  min-width: 0;
  max-height: clamp(11rem, 27svh, 15.5rem);
  height: auto;
  pointer-events: none;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-svg {
  filter: drop-shadow(0 0 10px rgba(167, 61, 255, 0.24));}body.piano-app-page[data-page="piano"] .progression-keyboard .guitar-svg {
  width: 100%;
  max-height: 9rem;}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .guitar-card {
  grid-template-rows: auto auto auto minmax(0, 1fr);}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .guitar-voicing-control--progression {
  align-self: start;
  min-height: 0;}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .guitar-card .keyboard {
  align-items: center;
  justify-items: stretch;}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .homepage-progression-animation,
body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .homepage-progression-animation .progression-step,
body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .homepage-progression-animation .progression-keyboard {
  height: auto;}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .homepage-progression-animation .progression-step {
  grid-template-rows: auto;
  align-items: center;}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .progression-keyboard .guitar-svg {
  max-height: clamp(11rem, 27svh, 15.5rem);}@media (min-width: 933px), (min-width: 768px) and (min-height: 431px) {body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .guitar-card .piano-card-header .repeat-button {
    width: clamp(3.1rem, 4.5vw, 4.15rem);
    height: clamp(3.1rem, 4.5vw, 4.15rem);
    min-width: clamp(3.1rem, 4.5vw, 4.15rem);
    min-height: clamp(3.1rem, 4.5vw, 4.15rem);}
}body.piano-app-page[data-page="piano"] .guitar-fret,
body.piano-app-page[data-page="piano"] .guitar-nut {
  stroke-linecap: round;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-fret,
body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-nut {
  stroke: rgba(233, 220, 255, 0.72);}body.piano-app-page[data-page="piano"] .guitar-fret {
  stroke-width: 2.2;}body.piano-app-page[data-page="piano"] .guitar-fret.is-active-fret {
  stroke-width: 2.8;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-fret.is-active-fret {
  stroke: rgba(255, 236, 254, 0.94);
  filter: drop-shadow(0 0 4px rgba(255, 104, 200, 0.36));}body.piano-app-page[data-page="piano"] .guitar-nut {
  stroke-width: 5.5;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-nut {
  stroke: #f8f2ff;
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.32));}body.piano-app-page[data-page="piano"] .guitar-string {
  stroke-width: 2.4;
  stroke-linecap: round;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-string {
  stroke: rgba(255, 194, 235, 0.78);}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-fret-marker {
  fill: rgba(255, 104, 200, 0.62);
  filter: drop-shadow(0 0 5px rgba(255, 104, 200, 0.35));}body.piano-app-page[data-page="piano"] .guitar-active-fret-range {
  stroke-width: 1;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-active-fret-range {
  fill: rgba(167, 61, 255, 0.11);
  stroke: rgba(255, 104, 200, 0.22);}body.piano-app-page[data-page="piano"] .guitar-barre-line {
  stroke-width: 5.8;
  stroke-linecap: round;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-barre-line {
  stroke: rgba(255, 104, 200, 0.78);
  opacity: 0.78;
  filter: drop-shadow(0 0 6px rgba(255, 104, 200, 0.46));}body.piano-app-page[data-page="piano"] .guitar-barre-label-bg {
  stroke-width: 1;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-barre-label-bg {
  fill: rgba(18, 5, 35, 0.94);
  stroke: rgba(255, 104, 200, 0.55);}body.piano-app-page[data-page="piano"] .guitar-note {
  stroke-width: 1.7;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note {
  fill: var(--pv-key-active);
  stroke: #f8f2ff;
  filter: drop-shadow(0 0 5px rgba(167, 61, 255, 0.9));}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-open-note {
  fill: rgba(8, 2, 20, 0.96);
  stroke: var(--pv-accent-2);}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-svg.is-playing .guitar-note {
  fill: var(--pv-accent-2);
  stroke: #fff;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-svg.is-playing.has-current-note .guitar-note {
  fill: var(--pv-key-active);
  stroke: #d9bcff;
  opacity: 0.55;
  filter: drop-shadow(0 0 3px rgba(167, 61, 255, 0.45));}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-svg.is-playing.has-current-note .guitar-note.is-current-note {
  fill: var(--pv-accent-2);
  stroke: #fff;
  opacity: 1;
  filter:
    drop-shadow(0 0 5px rgba(255, 104, 200, 0.95))
    drop-shadow(0 0 12px rgba(255, 104, 200, 0.48));}body.piano-app-page[data-page="piano"] .guitar-note-name-marker {
  fill: rgba(248, 251, 255, 0.96);
  stroke: rgba(49, 108, 255, 0.82);
  stroke-width: 1.2;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-name-marker {
  fill: rgba(8, 2, 20, 0.94);
  stroke: rgba(255, 104, 200, 0.72);
  filter: drop-shadow(0 0 4px rgba(255, 104, 200, 0.32));}body.piano-app-page[data-page="piano"] .guitar-note-label,
body.piano-app-page[data-page="piano"] .guitar-finger-label,
body.piano-app-page[data-page="piano"] .guitar-string-label,
body.piano-app-page[data-page="piano"] .guitar-fret-label,
body.piano-app-page[data-page="piano"] .guitar-base-fret-label,
body.piano-app-page[data-page="piano"] .guitar-barre-label,
body.piano-app-page[data-page="piano"] .guitar-string-indicator,
body.piano-app-page[data-page="piano"] .guitar-fallback-title,
body.piano-app-page[data-page="piano"] .guitar-fallback-notes,
body.piano-app-page[data-page="piano"] .guitar-muted {
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0;
  text-anchor: middle;}body.piano-app-page[data-page="piano"] .guitar-note-label {
  font-size: 14px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-label {
  fill: #130225;}body.piano-app-page[data-page="piano"] .guitar-finger-label {
  font-family: var(--font-ui);
  font-size: 17px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-finger-label {
  fill: #fff7ff;
  text-shadow: none;}body.piano-app-page[data-page="piano"] .guitar-svg.is-extended .guitar-note-label {
  font-size: 10.5px;}body.piano-app-page[data-page="piano"] .guitar-svg.is-extended .guitar-finger-label {
  font-size: 14px;}body.piano-app-page[data-page="piano"] .guitar-note-name-label.is-secondary-note-name {
  font-size: 8px;}body.piano-app-page[data-page="piano"] .guitar-svg.is-extended .guitar-note-name-label.is-secondary-note-name {
  font-size: 7px;}body.piano-app-page[data-page="piano"] .guitar-note-name-label {
  fill: #1b2434;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-name-label {
  fill: rgba(255, 230, 250, 0.95);}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-label.is-held-note-label {
  opacity: 0.62;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-label.is-current-note-label {
  opacity: 1;}body.piano-app-page[data-page="piano"] .guitar-open-note + .guitar-note-label {
  font-size: 11px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-open-note + .guitar-note-label {
  fill: var(--pv-accent-2);}body.piano-app-page[data-page="piano"] .guitar-string-label,
body.piano-app-page[data-page="piano"] .guitar-fret-label,
body.piano-app-page[data-page="piano"] .guitar-base-fret-label {
  font-size: 12px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-string-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-fret-label,
body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-base-fret-label {
  fill: rgba(232, 223, 255, 0.84);}body.piano-app-page[data-page="piano"] .guitar-barre-label {
  font-family: var(--font-ui);
  font-size: 13px;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-barre-label {
  fill: #fff7ff;}body.piano-app-page[data-page="piano"] .guitar-string-indicator {
  font-size: 15px;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-string-indicator {
  fill: var(--pv-accent-2);}body.piano-app-page[data-page="piano"] .guitar-muted {
  font-size: 18px;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-muted {
  fill: rgba(255, 104, 200, 0.88);}body.piano-app-page[data-page="piano"] .guitar-fallback-title {
  font-size: 15px;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-fallback-title {
  fill: var(--pv-accent-2);}body.piano-app-page[data-page="piano"] .guitar-fallback-notes {
  font-size: 12px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-fallback-notes {
  fill: rgba(232, 223, 255, 0.86);}@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"] .guitar-card {
    order: 2;
    min-width: 0;
    max-width: 100%;
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 0.32rem;
    min-height: clamp(18rem, 41svh, 23rem);}body.piano-app-page[data-page="piano"] .guitar-card .piano-card-header,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .guitar-card .piano-card-header {
    display: grid !important;
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    gap: 0.28rem;
    align-items: center;}body.piano-app-page[data-page="piano"] .guitar-card .play-button,
body.piano-app-page[data-page="piano"] .guitar-card .repeat-button,
body.piano-app-page[data-page="piano"] .guitar-card .octave-toggle {
    width: 2.55rem;
    height: 2.55rem;
    min-width: 2.55rem;
    min-height: 2.55rem;}body.piano-app-page[data-page="piano"] .guitar-card .play-button {
    grid-column: 1;}body.piano-app-page[data-page="piano"] .guitar-card .repeat-button {
    grid-column: 2;}body.piano-app-page[data-page="piano"] .guitar-card .octave-toggle {
    grid-column: 4;
    grid-row: 1;
    justify-self: end;}body.piano-app-page[data-page="piano"] .guitar-card .piano-card-header > .piano-metrics {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    min-width: 0;
    flex-basis: auto;}body.piano-app-page[data-page="piano"] .guitar-voicing-control {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.28rem 0.36rem;
    padding: 0.24rem 0.3rem;}body.piano-app-page[data-page="piano"] .guitar-voicing-control .guitar-next-voicing {
    grid-column: 1 / -1;
    width: 100%;
    min-height: 1.85rem;}body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle {
    width: 100%;
    min-height: 1.95rem;
    font-size: 0.92rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .guitar-card .piano-card-header > .piano-metrics {
    grid-column: 3;
    grid-row: 1;
    align-self: stretch;
    width: 100%;
    height: 2.75rem;
    min-height: 2.75rem;
    align-content: center;
    overflow: hidden;}body.piano-app-page[data-page="piano"] .guitar-card .keyboard {
    min-width: 0;
    max-width: 100%;
    padding: 0.32rem;}body.piano-app-page[data-page="piano"] .guitar-card .guitar-svg {
    max-height: clamp(9.6rem, 30svh, 13.5rem);}body.piano-app-page[data-page="piano"] .progression-keyboard .guitar-svg {
    max-height: 8rem;}body.piano-app-page[data-page="piano"].is-guitar-mode.is-home-progressions-mode .progression-keyboard .guitar-svg {
    max-height: clamp(9.6rem, 30svh, 13.5rem);}body.piano-app-page[data-page="piano"] .guitar-note-label {
    font-size: 13px;}
}@media (max-width: 420px) {body.piano-app-page[data-page="piano"] .guitar-card .guitar-svg {
    max-height: 11.5rem;}body.piano-app-page[data-page="piano"] .guitar-note-label {
    font-size: 12px;}body.piano-app-page[data-page="piano"] .guitar-string-label,
body.piano-app-page[data-page="piano"] .guitar-fret-label {
    font-size: 11px;}body.piano-app-page[data-page="piano"].is-guitar-mode .guitar-play-mode-toggle {
    gap: 0.16rem;
    font-size: 0.82rem;}
}body.piano-app-page[data-page="piano"] .guitar-note-name-toggle {
  grid-column: 1 / -1;
  justify-self: center;
  width: fit-content;
  max-width: 100%;
  min-height: 1.55rem;
  margin: -0.18rem 0 0;
  padding: 0.12rem 0.42rem;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: clamp(0.78rem, 1vw, 0.9rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: none;
  cursor: pointer;
  border: 1px solid rgba(30, 40, 58, 0.7);
  color: #1b2434;
  background: linear-gradient(180deg, #f9fbff 0%, #d8dee9 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.68),
    0 1px 0 rgba(0, 0, 0, 0.22);}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-name-toggle {
  border: 1px solid rgba(255, 104, 200, 0.42);
  color: rgba(232, 223, 255, 0.82);
  background: rgba(8, 2, 20, 0.38);
  box-shadow: inset 0 0 8px rgba(167, 61, 255, 0.08);}body.piano-app-page[data-page="piano"] .guitar-note-name-toggle:hover,
body.piano-app-page[data-page="piano"] .guitar-note-name-toggle:focus-visible {
  outline: 2px solid rgba(255, 104, 200, 0.82);
  outline-offset: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-name-toggle:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-name-toggle:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .guitar-note-name-toggle[aria-pressed="true"] {
  border-color: rgba(255, 104, 200, 0.74);
  color: #fff7ff;
  background: rgba(38, 8, 67, 0.72);}body.piano-app-page[data-page="piano"][data-instrument-family="ukulele"] .guitar-barre-line {
  stroke-width: 4.3;}body.piano-app-page[data-page="piano"][data-theme="dark"][data-instrument-family="ukulele"] .guitar-barre-line {
  stroke: rgba(255, 104, 200, 0.52);
  opacity: 0.64;
  filter: drop-shadow(0 0 3px rgba(255, 104, 200, 0.26));}body.piano-app-page[data-page="piano"][data-theme="dark"][data-instrument-family="ukulele"] .guitar-barre-label-bg {
  fill: rgba(8, 2, 20, 0.72);
  stroke: rgba(255, 104, 200, 0.34);}body.piano-app-page[data-page="piano"][data-instrument-family="ukulele"] .guitar-barre-label {
  font-size: 11px;}body.piano-app-page[data-page="piano"][data-theme="dark"][data-instrument-family="ukulele"] .guitar-barre-label {
  fill: rgba(232, 223, 255, 0.72);}@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"] .guitar-note-name-toggle {
    min-height: 1.45rem;
    margin-top: -0.1rem;
    font-size: 0.76rem;}
}body.piano-app-page[data-page="piano"] .selector-panel.selector-panel-with-rail {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: clamp(0.34rem, 0.82vw, 0.58rem);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-panel-content {
  display: grid;
  grid-column: 2;
  grid-row: 1;
  gap: 0.5rem;
  min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .selector-panel-with-rail .progression-builder-content {
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 0.32fr);
  align-items: stretch;
  gap: 0.42rem;}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.28rem;
  align-self: start;
  grid-column: 1;
  grid-row: 1;
  justify-self: start;
  width: max-content;
  margin: 0;
  padding: 0.28rem;
  border-radius: 4px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail {
  border: 1px solid rgba(168, 70, 255, 0.78);
  background:
    linear-gradient(180deg, rgba(12, 5, 27, 0.96), rgba(4, 5, 16, 0.98));
  box-shadow:
    inset 0 0 12px rgba(167, 61, 255, 0.14),
    0 0 16px rgba(167, 61, 255, 0.18);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail button {
  display: grid;
  place-items: center;
  width: 2.05rem;
  min-width: 2.05rem;
  height: 2.05rem;
  min-height: 2.05rem;
  padding: 0;
  border-radius: 3px;
  font-family: var(--font-ui);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button {
  border: 1px solid var(--pv-border-bright);
  background: linear-gradient(180deg, var(--pv-button), var(--pv-bg-deep));
  color: var(--pv-accent-2);
  text-shadow: 0 0 8px rgba(255, 79, 202, 0.35);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 9px rgba(167, 61, 255, 0.18);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail .selector-rail-button-wide {
  font-size: 0.92rem;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button:focus-visible {
  border-color: #ffb7ec;
  background: linear-gradient(180deg, var(--pv-accent-2), var(--pv-accent));
  color: #fff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.38);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.22),
    0 0 18px rgba(255, 79, 202, 0.36);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail button:focus-visible {
  outline-offset: 2px;}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button:focus-visible {
  outline: 2px solid var(--pv-cyan, var(--pv-focus));}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button[data-notation][aria-pressed="true"] {
  border-color: var(--pv-accent-2);
  background: linear-gradient(180deg, var(--pv-bg-deep), var(--pv-button));
  color: #fff;
  text-shadow:
    0 0 8px rgba(255, 255, 255, 0.42),
    0 0 12px var(--pv-glow);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.12),
    inset -3px -3px 0 rgba(167, 61, 255, 0.32),
    0 0 14px var(--pv-glow);}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button[data-note-name-toggle][aria-pressed="true"] {
  border-color: var(--pv-border-bright);
  background: linear-gradient(180deg, var(--pv-button), var(--pv-bg-deep));
  color: var(--pv-accent-2);
  text-shadow: 0 0 8px rgba(255, 79, 202, 0.35);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 9px rgba(167, 61, 255, 0.18);}body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button[data-note-name-toggle][aria-pressed="true"]:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel-with-rail .selector-mode-rail button[data-note-name-toggle][aria-pressed="true"]:focus-visible {
  border-color: #ffb7ec;
  background: linear-gradient(180deg, var(--pv-accent-2), var(--pv-accent));
  color: #fff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.38);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.22),
    0 0 18px rgba(255, 79, 202, 0.36);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail {
  grid-template-columns: auto minmax(0, 1fr);}@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"] .selector-panel.selector-panel-with-rail,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .selector-panel-with-rail .progression-builder-content {
    grid-template-columns: minmax(0, 1fr);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-panel-content {
    grid-column: 1;
    grid-row: 2;}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail {
    grid-column: 1;
    grid-row: 1;
    grid-template-columns: repeat(3, max-content);
    justify-self: start;
    width: max-content;}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail button {
    width: 1.92rem;
    min-width: 1.92rem;
    height: 1.92rem;
    min-height: 1.92rem;
    font-size: 1.12rem;}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail .selector-rail-button-wide {
    font-size: 0.82rem;}
}@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0.38rem;
    width: 100%;
    min-width: 0;
    padding: 0.38rem;
    overflow-x: hidden;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-mode-rail {
    grid-column: 1;
    grid-row: 1;
    grid-template-columns: 1fr;
    gap: 0.22rem;
    justify-self: start;
    width: auto;
    min-width: 0;
    padding: 0.22rem;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-mode-rail button {
    width: 2rem;
    min-width: 2rem;
    height: 2rem;
    min-height: 2rem;
    padding: 0;
    font-size: 1.06rem;
    line-height: 1;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-mode-rail .selector-rail-button-wide {
    width: 2rem;
    min-width: 2rem;
    font-size: 0.66rem;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-panel-content {
    grid-column: 2;
    grid-row: 1;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.34rem;
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-welcome {
    display: none;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-group {
    gap: 0.22rem;
    min-width: 0;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .chord-type-selector {
    margin-top: 0;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-label {
    margin: 0;
    font-size: clamp(0.64rem, 2.4vw, 0.78rem);
    line-height: 1;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu {
    display: grid;
    justify-content: stretch;
    gap: 0.16rem;
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu {
    grid-template-columns: repeat(6, minmax(0, 1fr));}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs {
    grid-template-columns: repeat(5, minmax(0, 1fr));}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: clamp(0.08rem, 0.65vw, 0.16rem);
    overflow: visible;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu button {
    width: auto;
    min-width: 0;
    max-width: 100%;
    min-height: 1.75rem;
    padding: 0.14rem 0.16rem;
    overflow-wrap: anywhere;
    font-size: clamp(0.58rem, 2vw, 0.72rem);
    line-height: 1.08;
    white-space: normal;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu button {
    min-height: 1.68rem;
    font-size: clamp(0.66rem, 2.35vw, 0.82rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs button {
    min-height: 1.62rem;
    padding-inline: 0.08rem;
    font-size: clamp(0.46rem, 1.65vw, 0.62rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .chord-type-selector .type-menu button {
    flex: 1 1 auto;
    min-width: 0;
    min-height: clamp(1.62rem, 7.3vw, 1.9rem);
    padding-inline: clamp(0.04rem, 0.8vw, 0.16rem);
    overflow-wrap: normal;
    font-size: clamp(0.44rem, 1.75vw, 0.58rem);
    line-height: 1;
    white-space: nowrap;}
}@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: clamp(0.32rem, 1.3vw, 0.46rem);
    width: 100%;
    min-width: 0;
    padding: clamp(0.22rem, 0.85svh, 0.36rem);
    overflow-x: hidden;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .selector-mode-rail {
    grid-column: 1;
    grid-row: 1;
    grid-template-columns: 1fr;
    gap: 0.18rem;
    align-self: start;
    justify-self: start;
    width: auto;
    min-width: 0;
    padding: 0.2rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .selector-mode-rail button {
    width: clamp(1.78rem, 8vw, 2rem);
    min-width: clamp(1.78rem, 8vw, 2rem);
    height: clamp(1.78rem, 8vw, 2rem);
    min-height: clamp(1.78rem, 8vw, 2rem);
    font-size: clamp(0.98rem, 4.2vw, 1.12rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .selector-mode-rail .selector-rail-button-wide {
    font-size: clamp(0.58rem, 2.6vw, 0.68rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .selector-panel-content.progression-builder-content {
    grid-column: 2;
    grid-row: 1;
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(6.4rem, 1fr);
    gap: clamp(0.18rem, 0.8vw, 0.28rem);
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main {
    grid-column: 1 / -1;
    grid-row: 1;
    gap: clamp(0.16rem, 0.7vw, 0.24rem);
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-main .progression-builder-section {
    gap: clamp(0.14rem, 0.6vw, 0.22rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode #progression-formula-title,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-grid {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: clamp(0.12rem, 0.55vw, 0.18rem);
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid button {
    width: auto;
    min-width: 0;
    min-height: clamp(1.5rem, 5.8vw, 1.78rem);
    padding: 0.08rem 0.1rem;
    font-size: clamp(0.62rem, 2.5vw, 0.76rem);
    line-height: 1;
    white-space: nowrap;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side {
    grid-column: 1;
    grid-row: 2;
    align-self: stretch;
    gap: clamp(0.12rem, 0.55vw, 0.2rem);
    min-width: 0;
    padding: clamp(0.18rem, 0.7svh, 0.28rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select {
    grid-column: 2;
    grid-row: 2;
    align-self: stretch;
    gap: clamp(0.12rem, 0.55vw, 0.2rem);
    min-width: 0;
    padding: clamp(0.18rem, 0.7svh, 0.28rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(0.12rem, 0.55vw, 0.18rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder .selector-label {
    margin: 0;
    font-size: clamp(0.5rem, 1.9vw, 0.62rem);
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-button {
    min-width: 0;
    min-height: clamp(1.48rem, 5.6vw, 1.76rem);
    padding: 0.08rem 0.12rem;
    line-height: 1;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-button {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open {
    display: grid;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open .selector-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open .progression-mobile-formula-button {
    grid-column: auto;
    grid-row: auto;
    align-self: auto;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail > .progression-mobile-formula-list {
    grid-column: 1 / -1;
    grid-row: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(0.12rem, 0.55vw, 0.18rem);
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-x: hidden;
    padding: clamp(0.18rem, 0.7svh, 0.28rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .chord-type-selector .category-tabs button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .chord-type-selector .type-menu button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu.progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .key-selector-panel .root-menu button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select .progression-mobile-formula-button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-select.is-open .progression-mobile-formula-button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-mobile-formula-button {
    font-size: 0.7rem;
    font-weight: 500;}
}@media (min-width: 933px), (min-width: 768px) and (min-height: 431px) {body.piano-app-page[data-page="piano"] #major-chords > .selector-panel.selector-panel-with-rail,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail {
    grid-template-columns: clamp(2.55rem, 4.2vw, 3.05rem) minmax(0, 1fr);
    align-items: stretch;
    gap: clamp(0.28rem, 0.55vw, 0.42rem);
    width: 100%;
    min-width: 0;
    padding: clamp(0.26rem, 0.5vw, 0.42rem);
    overflow-x: hidden;}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail {
    align-self: stretch;
    justify-self: stretch;
    width: 100%;
    min-width: 0;
    grid-template-rows: repeat(3, minmax(0, 1fr));
    align-content: stretch;
    gap: clamp(0.2rem, 0.38vw, 0.28rem);
    padding: clamp(0.2rem, 0.38vw, 0.28rem);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail button {
    width: 100%;
    min-width: 0;
    height: auto;
    min-height: clamp(2.05rem, 3.9vw, 2.45rem);
    padding: 0;
    font-size: clamp(1.1rem, 1.9vw, 1.38rem);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-mode-rail .selector-rail-button-wide {
    font-size: clamp(0.66rem, 1.05vw, 0.88rem);}body.piano-app-page[data-page="piano"] .selector-panel-with-rail .selector-panel-content {
    align-self: stretch;
    width: 100%;
    min-width: 0;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-panel-content {
    grid-template-columns: minmax(0, 1fr) minmax(0, clamp(13rem, 24vw, 17rem));
    grid-template-rows: max-content 1fr;
    align-items: stretch;
    gap: clamp(0.24rem, 0.45vw, 0.36rem) clamp(0.3rem, 0.6vw, 0.48rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-group {
    min-width: 0;
    gap: clamp(0.16rem, 0.32vw, 0.24rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .chord-type-selector {
    grid-column: 1;
    min-width: 0;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-welcome {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: stretch;
    justify-self: stretch;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    padding: clamp(0.46rem, 0.8vw, 0.68rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-welcome h2 {
    font-size: clamp(0.88rem, 1.55vw, 1.18rem);
    line-height: 1.08;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-welcome p {
    line-height: 1.25;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .selector-label,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .selector-label {
    margin: 0;
    font-size: clamp(0.58rem, 0.78vw, 0.7rem);
    line-height: 1;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-root-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-option-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-scale-toggle {
    display: grid;
    width: 100%;
    min-width: 0;
    gap: clamp(0.16rem, 0.28vw, 0.24rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs {
    grid-template-columns: repeat(5, minmax(0, 1fr));}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu {
    grid-template-columns: repeat(auto-fit, minmax(3.7rem, 1fr));}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-option-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-scale-toggle button {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    min-height: clamp(1.72rem, 3.4vw, 2.05rem);
    padding: 0.16rem clamp(0.12rem, 0.34vw, 0.24rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1;}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .root-selector .root-menu button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-root-grid button {
    min-height: clamp(1.88rem, 3.6vw, 2.18rem);
    font-size: clamp(0.74rem, 1.1vw, 1rem);}body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .category-tabs button,
body.piano-app-page[data-page="piano"]:not(.is-home-progressions-mode) #major-chords > .selector-panel.selector-panel-with-rail .type-menu button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-option-grid button {
    font-size: clamp(0.74rem, 1.05vw, 0.95rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .root-menu.progression-root-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-option-grid,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .root-menu.progression-root-grid button,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-option-grid button {
    min-height: 1.5rem;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .selector-panel-content.progression-builder-content {
    grid-template-columns: minmax(0, 1fr) clamp(13rem, 24vw, 17rem);
    grid-template-rows: max-content 1fr;
    align-items: stretch;
    gap: clamp(0.26rem, 0.5vw, 0.38rem) clamp(0.3rem, 0.6vw, 0.48rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-builder-main {
    grid-column: 1;
    grid-row: 1 / span 2;
    align-content: start;
    align-items: stretch;
    gap: clamp(0.18rem, 0.34vw, 0.26rem);
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-builder-section {
    gap: clamp(0.14rem, 0.28vw, 0.22rem);
    min-width: 0;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-info-message {
    display: grid;
    grid-column: 2;
    grid-row: 1;
    align-content: start;
    gap: clamp(0.22rem, 0.4vw, 0.32rem);
    min-width: 0;
    min-height: 0;
    padding: clamp(0.42rem, 0.72vw, 0.62rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-builder-side {
    grid-column: 2;
    grid-row: 2;
    align-self: stretch;
    align-content: start;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(0.16rem, 0.32vw, 0.24rem);
    min-width: 0;
    padding: clamp(0.42rem, 0.72vw, 0.62rem);}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-mobile-formula-select,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail > .progression-mobile-formula-list {
    display: none;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-option-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-scale-toggle {
    grid-template-columns: repeat(2, minmax(0, max-content));
    justify-content: start;}body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-scale-toggle button {
    width: auto;
    min-width: clamp(3.45rem, 6vw, 4.3rem);
    min-height: clamp(1.55rem, 2.9vw, 1.82rem);
    font-size: clamp(0.68rem, 0.95vw, 0.82rem);}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail .progression-scale-select-wrap {
    grid-template-columns: minmax(0, min(100%, 13rem));
    justify-content: start;}
}

body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-toggle.progression-scale-select-wrap {
  grid-template-columns: minmax(0, min(100%, 13rem));
  justify-content: start;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-select-wrap {
  position: relative;
  z-index: 30;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select-wrap {
  position: relative;
  z-index: 25;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-options-row {
  position: relative;
  z-index: 25;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-select {
  min-height: 1.22rem;
  padding: 0.08rem 0.42rem;
  line-height: 1;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-options {
  position: absolute;
  z-index: 30;
  top: calc(100% + 0.18rem);
  left: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.18rem;
  width: 100%;
  min-width: 100%;
  padding: 0.24rem;
  border: 1px solid rgba(167, 61, 255, 0.7);
  border-radius: 3px;
  background: linear-gradient(180deg, rgba(12, 13, 29, 0.98), rgba(5, 7, 16, 0.98));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 16px rgba(255, 104, 200, 0.18);
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-options[hidden] {
  display: none;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-scale-options button {
  min-height: 1.6rem;
  padding: 0.12rem 0.22rem;
  font-size: 0.68rem;
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-chord-mode-options {
  width: min(100%, 18rem);
}
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder.selector-panel-with-rail,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .selector-panel-with-rail .progression-builder-content,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-side,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-builder-section,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-customizer,
body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-options-row {
  overflow: visible !important;
}
body.piano-app-page[data-page="piano"][data-theme="dark"].is-home-progressions-mode .progression-scale-options {
  border-color: #a73dff;
}

@media (min-width: 768px) {
  body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select-wrap .progression-chord-mode-options {
    top: auto;
    bottom: calc(100% + 0.18rem);
  }
}

@media (max-width: 767px), (max-width: 932px) and (max-height: 430px) and (orientation: landscape) and (hover: none) and (pointer: coarse) {
  body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-option-select-wrap .progression-chord-mode-options {
    top: auto;
    bottom: calc(100% + 0.18rem);
  }

  body.piano-app-page[data-page="piano"] [data-progression-formula],
  body.piano-app-page[data-page="piano"] [data-progression-chords],
  body.piano-app-page[data-page="piano"] .scale-line {
    font-size: 0.85rem;
  }

  body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-progression-formula],
  body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-progression-chords],
  body.piano-app-page[data-page="piano"].is-home-progressions-mode [data-home-progression-scale] {
    font-size: 0.85rem;
  }

  body.piano-app-page[data-page="piano"].is-home-progressions-mode .progression-summary-card .scale-line {
    font-size: 0.85rem;
  }
}

/* Piano shared header alignment. */
body.piano-app-page[data-page="piano"] .site-header {
  background: transparent;
  border: 0;
  box-shadow: none;
  clip-path: none;
}

body.piano-app-page[data-page="piano"] .site-header::before,
body.piano-app-page[data-page="piano"] .site-header::after {
  display: none;
}

body.piano-app-page[data-page="piano"] .site-brand-lockup,
body.piano-app-page[data-page="piano"] .site-actions {
  background: transparent;
  border: 0;
  box-shadow: none;
  clip-path: none;
}

body.piano-app-page[data-page="piano"] .site-header .site-brand {
  font-family: var(--font-brand);
  font-weight: 400;
  letter-spacing: 0.03em;
  line-height: 1.12;
  text-transform: uppercase;
}

body.piano-app-page[data-page="piano"] .site-actions button {
  appearance: none;
  -webkit-appearance: none;
  border-style: solid;
  cursor: pointer;
}

/* Piano Dark Theme header visuals. */
body.piano-app-page[data-page="piano"][data-theme="dark"] .site-header {
  background: transparent;
  border: 0;
  box-shadow: none;
}

body.piano-app-page[data-page="piano"][data-theme="dark"] .site-brand {
  color: var(--pv-text);
  text-shadow:
    0 0 0.42rem rgba(244, 236, 255, 0.46),
    0 0 0.9rem rgba(167, 61, 255, 0.32);
}

body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:not(.instrument-family-select),
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:not(.instrument-family-select):hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:not(.instrument-family-select):focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:not(.instrument-family-select):focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button:not(.instrument-family-select):active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button:active {
  border-color: rgba(167, 61, 255, 0.86);
  background-color: rgba(8, 2, 20, 0.94);
  background-image: linear-gradient(180deg, rgba(8, 2, 20, 0.94), rgba(3, 1, 10, 0.98));
  color: #fff;
  box-shadow:
    0 0 0 1px rgba(167, 61, 255, 0.72) inset,
    0 0.85rem 1.8rem rgba(0, 0, 0, 0.22),
    0 0 1.1rem rgba(120, 41, 255, 0.16);
}

body.piano-app-page[data-page="piano"][data-theme="dark"] .header-icon-button {
  color: var(--pv-accent-2);
}

/* Piano shared banner cleanup. */
body.piano-app-page[data-page="piano"] .hero-section,
body.piano-app-page[data-page="piano"] .hero-image-frame,
body.piano-app-page[data-page="piano"] .future-illustration-slot {
  background: transparent;
  border: 0;
  box-shadow: none;
}

body.piano-app-page[data-page="piano"] .hero-section::before,
body.piano-app-page[data-page="piano"] .hero-section::after,
body.piano-app-page[data-page="piano"] .hero-image-frame::before,
body.piano-app-page[data-page="piano"] .hero-image-frame::after,
body.piano-app-page[data-page="piano"] .future-illustration-slot::before,
body.piano-app-page[data-page="piano"] .future-illustration-slot::after {
  display: none;
}

body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-image-frame,
body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot {
  background: transparent;
  background-image: none;
  border: 0;
  box-shadow: none;
}

body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-section::after,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-image-frame::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .hero-image-frame::after,
body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot::before,
body.piano-app-page[data-page="piano"][data-theme="dark"] .future-illustration-slot::after {
  display: none;
}

body.piano-app-page[data-page="piano"] main .hero-section .hero-image-frame {
  background: transparent;
}

body.piano-app-page[data-page="piano"] .hero-section .hero-image-frame .hero-banner-image {
  opacity: 1;
  transition: opacity 150ms ease;
}

body.piano-app-page[data-page="piano"].is-theme-switching .hero-section .hero-image-frame {
  background: transparent;
}

body.piano-app-page[data-page="piano"].is-theme-switching .hero-section .hero-image-frame .hero-banner-image {
  opacity: 0 !important;
}

@media (prefers-reduced-motion: reduce) {
  body.piano-app-page[data-page="piano"] .hero-section .hero-image-frame .hero-banner-image {
    transition-duration: 1ms;
  }
}

/* Piano Dark Theme instrument family button. */
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .instrument-family-select:active,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button.instrument-family-select,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button.instrument-family-select:hover,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button.instrument-family-select:focus,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button.instrument-family-select:focus-visible,
body.piano-app-page[data-page="piano"][data-theme="dark"] .header-menu-button.instrument-family-select:active {
  background-color: rgba(255, 94, 197, 0.95);
  background-image: linear-gradient(180deg, rgba(255, 94, 197, 0.95) 0%, rgba(143, 6, 101, 0.96) 100%);
  color: #120011;
}

/* Keep the dark selector panel border static. */
body.piano-app-page[data-page="piano"] .selector-panel::after {
  display: none;
}

body.piano-app-page[data-page="piano"][data-theme="dark"] .selector-panel {
  border-color: var(--pv-border);
  background: linear-gradient(180deg, rgba(15, 20, 39, 0.96), rgba(4, 7, 16, 0.98)) padding-box;
  animation: none;
}

body.piano-app-page[data-page="piano"] .scale-line,
body.piano-app-page[data-page="piano"] .formula-line,
body.piano-app-page[data-page="piano"] [data-progression-chords] {
  font-weight: 700;
}