/* Local piano page: scoped purple/pink pixel glass system. */
.lv-piano-page {
  --lv-purple-900: #211743;
  --lv-purple-700: #6e4090;
  --lv-panel: rgba(42, 20, 65, .72);
  --lv-border: #ad82d6;
  --lv-pink: #f49bde;
  --lv-pink-bright: #ffb9e8;
  --lv-text: #fff1ff;
  --lv-muted: #d5b9e9;
  --lv-ink: #1a102d;
  box-sizing: border-box;
  width: min(100%, 1180px);
  min-width: 0;
  margin: clamp(12px, 3vw, 28px) auto 48px;
  padding: clamp(14px, 2.5vw, 30px);
  overflow: hidden;
  border: 2px solid rgba(244, 155, 222, .72);
  border-radius: 18px;
  background:
    linear-gradient(145deg, rgba(24, 13, 47, .82) 0%, rgba(34, 19, 67, .72) 48%, rgba(14, 9, 31, .86) 100%),
    radial-gradient(circle at 86% 8%, rgba(255, 185, 232, .2), transparent 22rem),
    url('/images/album/album-01.jpg') center 42% / cover no-repeat;
  background-attachment: scroll, scroll, fixed;
  box-shadow: 0 22px 60px rgba(13, 4, 28, .42), inset 0 0 0 1px rgba(255, 255, 255, .08);
  color: var(--lv-text);
  font-family: "Courier New", "Noto Sans SC", monospace;
  line-height: 1.5;
}

.lv-piano-page,
.lv-piano-page * {
  box-sizing: border-box;
}

.lv-piano-page h1,
.lv-piano-page h2,
.lv-piano-page p {
  margin-top: 0;
}

.lv-piano-page::after {
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  content: '';
  background: linear-gradient(90deg, rgba(255, 185, 232, .07), transparent 28%, transparent 72%, rgba(105, 220, 255, .06));
}

.lv-piano-page > * {
  position: relative;
  z-index: 1;
}

.lv-piano-page h1,
.lv-piano-page h2,
.lv-piano-page strong {
  color: var(--lv-text);
}

.lv-piano-page button,
.lv-piano-page a,
.lv-piano-page input {
  font: inherit;
}

.lv-piano-page button,
.lv-piano-page a {
  -webkit-tap-highlight-color: transparent;
}

.lv-piano-page button:focus-visible,
.lv-piano-page a:focus-visible,
.lv-piano-page input:focus-visible,
.lv-piano-page [tabindex="0"]:focus-visible {
  outline: 3px solid var(--lv-pink-bright);
  outline-offset: 3px;
}

.piano-return-bar,
.piano-page-heading,
.piano-console-heading,
.piano-section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.piano-return-bar {
  margin-bottom: clamp(20px, 4vw, 42px);
}

.piano-back-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 11px;
  border: 1px solid rgba(255, 185, 232, .62);
  border-radius: 7px;
  background: rgba(255, 255, 255, .08);
  color: var(--lv-text);
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.piano-back-link:hover {
  border-color: var(--lv-pink-bright);
  background: rgba(244, 155, 222, .2);
  transform: translateY(-1px);
}

.piano-route-chip,
.piano-console-badge,
.piano-source-note {
  color: var(--lv-muted);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.piano-page-heading {
  align-items: flex-end;
  margin-bottom: 20px;
}

.piano-eyebrow {
  margin-bottom: 6px;
  color: var(--lv-pink);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
}

.piano-page-heading h1 {
  margin-bottom: 8px;
  font-size: clamp(30px, 6vw, 58px);
  letter-spacing: .08em;
  line-height: 1.05;
  text-shadow: 0 0 18px rgba(255, 185, 232, .5);
}

.piano-lede {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--lv-muted);
}

.piano-brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 74px;
  height: 74px;
  border: 1px solid rgba(255, 185, 232, .62);
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(244, 155, 222, .35), rgba(110, 64, 144, .26));
  box-shadow: 0 0 24px rgba(244, 155, 222, .22);
  color: var(--lv-pink-bright);
  font-size: 22px;
}

.piano-brand-mark span {
  display: block;
  margin-top: -23px;
  color: var(--lv-text);
  font-size: 12px;
  letter-spacing: .1em;
}

.piano-help,
.piano-console,
.piano-source-panel {
  border: 1px solid rgba(173, 130, 214, .66);
  background: var(--lv-panel);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
}

.piano-help {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 13px 15px;
  border-left: 3px solid var(--lv-pink);
  border-radius: 9px;
}

.piano-help strong {
  display: block;
  margin-bottom: 3px;
  color: var(--lv-pink-bright);
}

.piano-help p {
  margin-bottom: 0;
  color: var(--lv-muted);
  font-size: 12px;
}

.piano-help-close {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 185, 232, .48);
  border-radius: 6px;
  background: rgba(255, 255, 255, .06);
  color: var(--lv-text);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

.piano-console,
.piano-source-panel {
  padding: clamp(13px, 2vw, 22px);
  border-radius: 13px;
}

.piano-console {
  position: relative;
  margin-bottom: 18px;
  background:
    radial-gradient(ellipse at 50% 72%, rgba(244, 155, 222, .16), transparent 45%),
    linear-gradient(160deg, rgba(63, 33, 87, .78), rgba(17, 11, 32, .92));
}

.piano-console-heading {
  align-items: flex-start;
  margin-bottom: 16px;
}

.piano-console-heading h2,
.piano-section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(19px, 3vw, 27px);
  letter-spacing: .04em;
}

.piano-console-badge {
  padding: 5px 8px;
  border: 1px solid rgba(244, 155, 222, .5);
  border-radius: 5px;
  color: var(--lv-pink-bright);
}

.piano-status-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(100px, .8fr) minmax(150px, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.piano-status-card,
.piano-octave-control {
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid rgba(173, 130, 214, .42);
  border-radius: 7px;
  background: rgba(15, 9, 29, .4);
}

.piano-status-label {
  display: block;
  margin-bottom: 3px;
  color: var(--lv-muted);
  font-size: 10px;
  letter-spacing: .08em;
}

.piano-status-card strong {
  display: block;
  overflow: hidden;
  color: var(--lv-text);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.piano-current-note {
  color: var(--lv-pink-bright) !important;
  font-size: 19px !important;
}

.piano-octave-buttons {
  display: flex;
  align-items: center;
  gap: 7px;
}

.piano-octave-buttons button {
  display: grid;
  width: 27px;
  height: 25px;
  place-items: center;
  border: 1px solid rgba(255, 185, 232, .68);
  border-radius: 5px;
  background: rgba(244, 155, 222, .16);
  color: var(--lv-text);
  cursor: pointer;
  line-height: 1;
}

.piano-octave-buttons button:hover:not(:disabled) {
  background: rgba(244, 155, 222, .34);
}

.piano-octave-buttons button:disabled {
  cursor: not-allowed;
  opacity: .38;
}

.piano-octave-buttons output {
  min-width: 55px;
  color: var(--lv-pink-bright);
  font-size: 11px;
  text-align: center;
}

.piano-performance-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.piano-range-control {
  display: grid;
  gap: 7px;
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid rgba(173, 130, 214, .42);
  border-radius: 7px;
  background: rgba(15, 9, 29, .4);
}

.piano-range-control .piano-status-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 0;
}

.piano-range-control output {
  color: var(--lv-pink-bright);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.piano-range-control input[type="range"] {
  width: 100%;
  min-width: 0;
  accent-color: var(--lv-pink-bright);
  cursor: pointer;
}

.piano-keyboard-scroll {
  width: 100%;
  max-width: 100%;
  padding: 12px 8px 16px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid rgba(173, 130, 214, .45);
  border-radius: 9px;
  background: rgba(8, 6, 19, .48);
  overscroll-behavior-x: contain;
  scrollbar-color: var(--lv-pink) rgba(255, 255, 255, .08);
  scrollbar-width: thin;
}

.piano-keyboard {
  --piano-black-width: 22px;
  position: relative;
  display: flex;
  align-items: stretch;
  width: 1110px;
  min-width: 1110px;
  height: clamp(188px, 25vw, 250px);
  isolation: isolate;
}

.piano-key {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  min-width: 0;
  padding: 8px 2px;
  border: 1px solid rgba(110, 64, 144, .66);
  border-radius: 0 0 6px 6px;
  cursor: pointer;
  font-size: 9px;
  line-height: 1.15;
  touch-action: none;
  user-select: none;
  transition: transform 80ms ease, filter 100ms ease, background-color 100ms ease, box-shadow 100ms ease;
}

.piano-key.is-white {
  z-index: 1;
  flex: 1 0 0;
  height: 100%;
  background: linear-gradient(180deg, #fffaff 0%, #ead8f2 72%, #c8a8d6 100%);
  box-shadow: inset 0 -9px 13px rgba(107, 59, 132, .2), 0 4px 0 rgba(18, 8, 31, .36);
  color: #4a2c5a;
}

.piano-key.is-black {
  position: absolute;
  top: 0;
  left: calc(var(--piano-after-white-index) * 100% / var(--piano-white-count));
  z-index: 3;
  width: var(--piano-black-width);
  height: 64%;
  transform: translateX(-50%);
  background: linear-gradient(165deg, #160e25 0%, #3a2051 58%, #78417f 100%);
  box-shadow: 0 5px 8px rgba(0, 0, 0, .48), inset 0 -5px 8px rgba(255, 185, 232, .12);
  color: #ffe8fa;
}

.piano-key[aria-pressed="true"],
.piano-key.is-pressed {
  filter: brightness(1.18);
  box-shadow: 0 0 16px rgba(255, 185, 232, .88), 0 0 3px var(--lv-pink-bright);
  transform: translateY(3px);
}

.piano-key.is-black[aria-pressed="true"],
.piano-key.is-black.is-pressed {
  transform: translate(-50%, 3px);
}

.piano-key:focus-visible {
  z-index: 8;
  outline: 3px solid var(--lv-pink-bright);
  outline-offset: -4px;
}

.piano-key-note {
  opacity: .78;
  font-size: 8px;
}

.piano-key-shortcut {
  position: absolute;
  top: 7px;
  font-size: 10px;
  font-weight: 700;
}

.piano-keyboard-caption {
  margin: 9px 0 0;
  color: var(--lv-muted);
  font-size: 10px;
  letter-spacing: .04em;
  text-align: center;
}

.piano-section-heading {
  align-items: flex-end;
  margin-bottom: 10px;
}

.piano-source-note {
  color: var(--lv-pink);
  text-align: right;
}

.piano-source-description {
  margin-bottom: 14px;
  color: var(--lv-muted);
  font-size: 12px;
}

.piano-source-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.piano-source-choice,
.piano-file-choice {
  display: flex;
  min-width: 0;
  min-height: 58px;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  padding: 10px 12px;
  overflow-wrap: anywhere;
  border: 1px solid rgba(173, 130, 214, .55);
  border-radius: 8px;
  background: rgba(255, 255, 255, .06);
  color: var(--lv-text);
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

button.piano-source-choice,
.piano-file-choice {
  cursor: pointer;
  text-align: left;
}

.piano-source-choice:hover,
.piano-source-choice.is-selected,
.piano-file-choice:hover {
  border-color: var(--lv-pink-bright);
  background: rgba(244, 155, 222, .17);
  transform: translateY(-1px);
}

.piano-source-choice small,
.piano-file-choice small {
  color: var(--lv-muted);
  font-size: 10px;
}

.piano-file-choice input {
  width: 100%;
  max-width: 100%;
  color: var(--lv-muted);
  font-size: 11px;
}

.piano-download-link {
  border-color: rgba(255, 185, 232, .55);
  background: rgba(244, 155, 222, .12);
}

@media (max-width: 680px) {
  .piano-status-grid {
    grid-template-columns: 1fr 1fr;
  }

  .piano-status-main,
  .piano-octave-control {
    grid-column: 1 / -1;
  }

  .piano-page-heading {
    align-items: flex-start;
  }

  .piano-brand-mark {
    flex-basis: 56px;
    height: 56px;
  }
}

@media (max-width: 390px) {
  .lv-piano-page {
    margin-top: 8px;
    padding: 11px;
    border-radius: 12px;
  }

  .piano-return-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
    margin-bottom: 22px;
  }

  .piano-route-chip {
    font-size: 9px;
  }

  .piano-page-heading h1 {
    font-size: 31px;
  }

  .piano-brand-mark {
    display: none;
  }

  .piano-source-grid {
    grid-template-columns: 1fr;
  }

  .piano-performance-controls {
    grid-template-columns: 1fr;
  }

  .piano-keyboard-scroll {
    margin-right: -1px;
    margin-left: -1px;
    padding-right: 5px;
    padding-left: 5px;
  }

  .piano-keyboard {
    height: 190px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lv-piano-page *,
  .lv-piano-page *::before,
  .lv-piano-page *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
}