:root {
  --bg-base: #28241C;
  --bg-panel: #322D24;
  --bg-card: #3C352B;
  --bg-elevated: #463E33;
  --bg-inset: #12100C;

  --wood: #D28C44;
  --wood-light: #E6B570;
  --wood-glow: rgba(230, 181, 112, 0.15);
  --metal: #C8C6C0;
  --metal-dim: #908E88;

  --text-main: #F4F0E6;
  --text-mid: #A8A090;
  --text-muted: #726C60;

  --accent: #F79C28;
  --accent-glow: rgba(247, 156, 40, 0.25);
  --in-tune: #40DF8A;
  --in-tune-glow: rgba(64, 223, 138, 0.2);
  --warning: #FBBF24;
  --error: #F87171;

  --shadow-dark: rgba(20, 15, 10, 0.45);
  --highlight-warm: rgba(255, 250, 240, 0.06);
  --bg-modal: #4A4236;

  --font-sans: 'Inter', "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --r-xl: 20px;
  --r-lg: 14px;
  --r-md: 10px;
  --r-sm: 6px;
}


* {
  box-sizing: border-box;
}

body {
  margin-block: 0;
  margin-inline: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overflow-y: auto;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
  overflow-wrap: anywhere;
  word-break: normal;
  line-break: strict;


  background-color: var(--bg-base);
  background-image:
    repeating-linear-gradient(135deg,
      transparent,
      transparent 2px,
      rgba(255, 255, 255, 0.008) 2px,
      rgba(255, 255, 255, 0.008) 3px);
}

button,
select {
  font-family: var(--font-sans);
  outline: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


.ambient-glow {
  position: absolute;
  inset-block-start: 0;
  inset-block-end: 0;
  inset-inline-start: 50%;
  width: 100%;
  max-width: 480px;
  height: 100%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 40%,
      var(--wood-glow) 0%,
      transparent 60%);
  z-index: -1;
  pointer-events: none;
  transition: background 0.5s ease-out;
}

.ambient-glow.in-tune {
  background: radial-gradient(ellipse at 50% 40%,
      var(--in-tune-glow) 0%, transparent 55%);
}

.ambient-glow.warning {
  background: radial-gradient(ellipse at 50% 40%,
      rgba(251, 191, 36, 0.10) 0%, transparent 55%);
}


.app-container {
  width: clamp(360px, 100%, 480px);
  margin-inline: auto;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  grid-template-columns: minmax(0, 1fr);
  position: relative;
  padding-block-start: max(1rem, env(safe-area-inset-top));
  padding-inline-end: max(0.75rem, env(safe-area-inset-right));
  padding-block-end: max(1rem, env(safe-area-inset-bottom));
  padding-inline-start: max(0.75rem, env(safe-area-inset-left));

  background: var(--bg-panel);
  background-image:
    linear-gradient(180deg,
      rgba(200, 160, 112, 0.08) 0%,
      transparent 15%,
      transparent 85%,
      rgba(200, 160, 112, 0.06) 100%);
  border-inline-start: 3px solid rgba(200, 160, 112, 0.22);
  border-inline-end: 3px solid rgba(200, 160, 112, 0.22);
  box-shadow:
    inset 0 0 40px rgba(0, 0, 0, 0.12),
    0 0 60px rgba(0, 0, 0, 0.3);
}


.mic-start-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 35%,
    rgba(255, 245, 230, 0.04) 0%,
    rgba(40, 36, 28, 0.22) 22%,
    rgba(40, 36, 28, 0.58) 72%,
    rgba(40, 36, 28, 0.74) 100%
  );
  transition: opacity 0.3s ease-out;
}

.mic-start-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  transform: translateY(-12vh);
}

.mic-start-container.hidden {
  opacity: 0;
  pointer-events: none;
}

.btn-start-inline {
  display: flex;
  align-items: center;
  pointer-events: auto;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: var(--r-xl);

  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
  color: var(--wood-light);
  border: 1px solid var(--wood);
  box-shadow:
    0 0 20px var(--accent-glow),
    0 4px 20px var(--shadow-dark),
    inset 0 1px 0 var(--highlight-warm);
  transition: background 0.2s, box-shadow 0.2s, border-color 0.2s;
  cursor: pointer;
}

.btn-start-inline.disabled {
  opacity: 0.72;
  cursor: progress;
  pointer-events: none;
}

.btn-start-inline:hover {
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-base) 100%);
  border-color: var(--wood-light);
  box-shadow:
    0 0 35px var(--accent-glow),
    0 6px 24px var(--shadow-dark),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-start-inline:active {
  background: var(--bg-card);
  box-shadow:
    0 0 10px var(--accent-glow),
    0 2px 10px var(--shadow-dark),
    inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-start-inline.hidden {
  display: none;
}

.mic-start-message {
  margin: 0;
  max-width: min(28rem, calc(100vw - 3rem));
  padding: 0.7rem 0.95rem;
  border: 1px solid rgba(230, 181, 112, 0.22);
  border-radius: var(--r-md);
  background: rgba(18, 16, 12, 0.56);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
}


.top-bar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding-block: 0.5rem;
  padding-inline: 0.25rem;
  margin-block-end: 0.75rem;

  background:
    repeating-linear-gradient(0deg,
      transparent,
      transparent 1px,
      rgba(255, 255, 255, 0.015) 1px,
      rgba(255, 255, 255, 0.015) 2px),
    linear-gradient(180deg,
      rgba(255, 255, 255, 0.03) 0%,
      transparent 50%,
      rgba(0, 0, 0, 0.05) 100%);
  border-block-end: 1px solid rgba(200, 160, 112, 0.12);
}

.controls {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.settings-fab {
  position: fixed;
  inset-inline-end: max(0.75rem, calc(50vw - 240px + 0.75rem), env(safe-area-inset-right));
  inset-block-end: calc(env(safe-area-inset-bottom) + 1rem);
  box-sizing: border-box;
  --settings-fab-outline: rgba(200, 160, 112, 0.16);
  --settings-fab-outline-frame: rgba(200, 160, 112, 0.08);
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  z-index: 9500;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%),
    var(--bg-inset);
  border-color: rgba(200, 160, 112, 0.18);
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.18),
    inset 0 1px 2px rgba(255, 255, 255, 0.03),
    inset 0 -1px 2px rgba(0, 0, 0, 0.14);
}

.settings-fab::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 1px solid var(--settings-fab-outline-frame);
  border-inline-start: 2px solid var(--settings-fab-outline);
  border-inline-end: 2px solid var(--settings-fab-outline);
  border-radius: calc(var(--r-md) + 3px);
  pointer-events: none;
}

.settings-fab svg {
  width: 21px;
  height: 21px;
}

.settings-fab:focus,
.settings-fab:focus-visible,
.settings-fab:-moz-focusring {
  outline: none;
}

.settings-fab::-moz-focus-inner {
  border: 0;
}

.active-preset-display {
  display: flex;
  align-items: center;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(0.95rem, 4.5vw, 1.15rem);
  color: var(--text-main);
  letter-spacing: -0.2px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  padding-block: 0.45rem;
  transition: color 0.2s, opacity 0.2s;
  flex: 1;
  max-width: 300px;
}

.active-preset-display::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-inline-start: 6px;
  background-color: currentColor;
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg fill='none' stroke='black' stroke-width='4' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'><path d='M6 9l6 6 6-6'></path></svg>");
  mask-image: url("data:image/svg+xml;utf8,<svg fill='none' stroke='black' stroke-width='4' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'><path d='M6 9l6 6 6-6'></path></svg>");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.active-preset-display:hover {
  color: var(--wood-light);
}

.active-preset-display:hover::after {
  background-image: url("data:image/svg+xml;utf8,<svg fill='none' stroke='%23e0a060' stroke-width='4' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'><path d='M6 9l6 6 6-6'></path></svg>");
  opacity: 1;
}

.preset-dropdown {
  background: var(--bg-inset);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  padding-block: 0.45rem;
  padding-inline: 0.75rem;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 0.85rem;
  min-height: 44px;
  min-width: 44px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
  transition: border-color 0.2s;
  cursor: pointer;
}

.preset-dropdown:focus {
  border-color: var(--wood);
}

.preset-dropdown-narrow {
  padding-block: 0.45rem;
  padding-inline: 0.45rem;
  font-size: 0.8rem;
  min-width: 44px;
}

.btn-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-inset);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--r-md);
  color: var(--text-mid);
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
  transition: all 0.2s;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

.btn-icon:hover {
  color: var(--wood-light);
  border-color: rgba(200, 160, 112, 0.25);
}

.btn-icon.active {
  color: var(--in-tune);
  border-color: rgba(52, 211, 153, 0.3);
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.4),
    0 0 10px var(--in-tune-glow);
}

.btn-icon-stop.is-live,
.btn-icon-stop.is-live:hover {
  color: var(--error);
  border-color: rgba(255, 255, 255, 0.06);
}


.tuner-core {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  position: relative;
  gap: 0.45rem;
}


.gadget-panel {
  background:

    repeating-linear-gradient(160deg,
      transparent,
      transparent 4px,
      rgba(200, 160, 112, 0.012) 4px,
      rgba(200, 160, 112, 0.012) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, #342E24 100%);
  border: 1px solid rgba(200, 160, 112, 0.12);
  border-radius: var(--r-xl);
  padding: 0.9rem;
  box-shadow:
    0 4px 20px var(--shadow-dark),
    inset 0 1px 0 var(--highlight-warm);
  position: relative;
}

.module-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 2px;
  color: var(--wood-light);
  margin-block-end: 0.35rem;
  text-transform: uppercase;
  opacity: 0.8;
}

.gadget-top-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.625rem;
  height: 88px;
}

.scope-module,
.readout-module {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}


.waveform-container,
.readout-display {
  flex: 1;
  border-radius: var(--r-md);
  border: 1.5px solid rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;

  box-shadow:
    inset 0 0 15px rgba(0, 0, 0, 0.8),
    inset 0 0 3px rgba(0, 0, 0, 0.9),
    0 1px 0 rgba(255, 255, 255, 0.03);
}


.waveform-container {
  background:
    radial-gradient(ellipse at center, #081A0E 0%, #040D06 100%);
}

#waveform-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.scope-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(52, 211, 153, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(52, 211, 153, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  background-position: center center;
  pointer-events: none;
}

.scope-freq-overlay {
  position: absolute;
  inset-block-end: 4px;
  inset-inline-end: 6px;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  z-index: 5;
  pointer-events: none;
  opacity: 0.8;
}

.scope-freq-overlay .freq-label {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  color: rgba(52, 211, 153, 0.85);
}

.scope-freq-overlay .freq-val {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: rgba(52, 211, 153, 0.85);
  white-space: pre;
}


.readout-display {
  background:
    radial-gradient(ellipse at center, #16140E 0%, #121213 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
  min-height: 0;
}

.note-display-wrapper {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}


.huge-note {
  font-size: clamp(2.25rem, 8vw, 3rem);
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  background: linear-gradient(180deg, #FFD080 0%, #E0A030 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 12px rgba(245, 180, 60, 0.25));
  transition: all 0.2s;
}

.huge-note.in-tune {
  background: linear-gradient(180deg, #80FFB8 0%, #30D880 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 16px rgba(59, 224, 160, 0.4));
}

.note-octave {
  font-size: 1rem;
  font-weight: 600;
  color: #8E8E93;
  margin-block-start: 0.25rem;
  margin-inline-start: 0.1rem;
}

.standby-dash {
  font-weight: 100;
  color: #333;
}

.cents-text {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: #8E8E93;
  margin-block-start: 0.25rem;
}

.cents-text.in-tune {
  color: var(--in-tune);
}

.cents-text.warning {
  color: var(--warning);
}


.radio-tuner-module {
  background:
    repeating-linear-gradient(160deg,
      transparent,
      transparent 4px,
      rgba(200, 160, 112, 0.012) 4px,
      rgba(200, 160, 112, 0.012) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, #342E24 100%);
  border-radius: var(--r-xl);
  padding: 1rem 0.75rem;
  border: 1px solid rgba(200, 160, 112, 0.12);
  position: relative;
  box-shadow:
    0 4px 20px var(--shadow-dark),
    inset 0 1px 0 var(--highlight-warm);
}

.radio-tuner-module .module-label {
  color: var(--wood-light);
  opacity: 0.8;
}

.radio-scale {
  height: 32px;
  background-color: #060606;
  background-image: linear-gradient(90deg,
      rgba(220, 38, 38, 0.15) 0%, rgba(220, 38, 38, 0.15) 25%,
      rgba(245, 158, 11, 0.15) 25%, rgba(245, 158, 11, 0.15) 46%,
      rgba(16, 185, 129, 0.25) 46%, rgba(16, 185, 129, 0.25) 54%,
      rgba(245, 158, 11, 0.15) 54%, rgba(245, 158, 11, 0.15) 75%,
      rgba(220, 38, 38, 0.15) 75%, rgba(220, 38, 38, 0.15) 100%);
  border: 2px solid #141210;
  border-radius: var(--r-sm);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.95), inset 0 -1px 3px rgba(0, 0, 0, 0.8), 0 1px 0 rgba(255, 255, 255, 0.05);
  margin-block-end: 0.35rem;
}

.radio-scale.in-tune {
  background-image: linear-gradient(90deg,
      rgba(220, 38, 38, 0.15) 0%, rgba(220, 38, 38, 0.15) 25%,
      rgba(245, 158, 11, 0.15) 25%, rgba(245, 158, 11, 0.15) 46%,
      rgba(16, 185, 129, 0.5) 46%, rgba(16, 185, 129, 0.5) 54%,
      rgba(245, 158, 11, 0.15) 54%, rgba(245, 158, 11, 0.15) 75%,
      rgba(220, 38, 38, 0.15) 75%, rgba(220, 38, 38, 0.15) 100%);
  box-shadow: inset 0 0 20px rgba(52, 211, 153, 0.2), inset 0 3px 8px rgba(0, 0, 0, 0.95), inset 0 -1px 3px rgba(0, 0, 0, 0.8), 0 1px 0 rgba(255, 255, 255, 0.05);
}

.scale-ticks {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent 5px, rgba(4, 4, 4, 0.95) 5px, rgba(4, 4, 4, 0.95) 8px);
  background-position: center;
}

.scale-ticks::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.1) 15%, rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, 0.2) 85%, rgba(0, 0, 0, 0.8) 100%);
}

.radio-needle {
  position: absolute;
  inset-block-start: 0;
  inset-block-end: 0;
  width: 13px;
  background: var(--accent);
  inset-inline-start: 50%;
  transform: translateX(-50%);
  z-index: 10;
  transition: inset-inline-start 0.1s ease-out, background 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.9), 0 0 4px rgba(255, 255, 255, 0.8);
}

.radio-needle.in-tune {
  background: var(--in-tune);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.9), 0 0 6px rgba(255, 255, 255, 0.9);
}

.radio-labels {
  display: grid;
  grid-template-columns: auto auto auto auto auto;
  justify-content: space-between;
  padding: 0 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.center-zero {
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 800;
  transform: scaleY(0.8);
  display: inline-block;
  opacity: 0.9;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
  transition: color 0.2s, text-shadow 0.2s, opacity 0.2s;
}

.center-zero.in-tune {
  color: var(--in-tune);
  opacity: 1;
  text-shadow: 0 0 12px var(--in-tune-glow);
}


.bottom-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: 0.75rem;
  min-height: 0;
}


.strings-container {
  background:
    repeating-linear-gradient(160deg,
      transparent,
      transparent 4px,
      rgba(200, 160, 112, 0.01) 4px,
      rgba(200, 160, 112, 0.01) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, #342E24 100%);
  padding: 0.75rem 0.9rem;
  border-radius: var(--r-xl);
  border: 1px solid rgba(200, 160, 112, 0.12);
  box-shadow:
    0 4px 20px var(--shadow-dark),
    inset 0 1px 0 var(--highlight-warm);
}

.strings-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
  position: relative;
  align-items: center;
}

.strings-row::-webkit-scrollbar {
  display: none;
}

.strings-row.chromatic-layout {
  display: grid;
  grid-template-columns: repeat(7, 44px);
  justify-content: center;
  gap: 0.35rem;
}

.strings-row.chromatic-layout .strings-row-label {
  grid-column: 1 / -1;
  margin-block-end: 0.2rem;
}

.strings-row.chromatic-layout .string-key {
  width: 100%;
}

.chromatic-layout .string-val {
  font-size: 0.95rem;
  transform: translateY(4px);
}

.chromatic-layout .string-range {
  visibility: hidden;
}

.strings-row-label {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 2px;
  color: var(--wood-light);
  margin-block-end: 0.4rem;
  text-align: left;
  opacity: 0.8;
}


.string-key {
  flex: 0 0 auto;
  width: 44px;
  aspect-ratio: 1/1.45;
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
  border: 1px solid rgba(200, 160, 112, 0.12);
  border-radius: var(--r-md);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-block-end: 0.65rem;
  cursor: pointer;
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: all 0.15s ease-out;
}

.key-edge {
  position: absolute;
  inset: 0;
  border-radius: var(--r-md);
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.15);
  pointer-events: none;
}

.key-indicator {
  position: absolute;
  inset-block-start: 0.45rem;
  width: 8px;
  height: 4px;
  border-radius: 2px;

  background: rgba(200, 160, 112, 0.1);
  transition: all 0.2s;
}

.string-key .string-num {
  font-size: 0.6rem;
  color: var(--text-muted);
  font-weight: 700;
  margin-block-end: 0.15rem;
  z-index: 1;
}

.string-key .string-val {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-mid);
  z-index: 1;
  margin-block-end: 0.15rem;
}

.string-key .string-range {
  font-size: 0.5rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  z-index: 1;
}

.string-key:hover {
  border-color: rgba(200, 160, 112, 0.25);
  box-shadow:
    0 3px 10px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}


.string-key.active .string-val {
  color: var(--text-main);
}

.string-key.active .string-range {
  color: var(--text-mid);
}

.string-key.active .key-indicator {
  background: var(--in-tune);
  box-shadow: 0 0 6px var(--in-tune), 0 0 12px var(--in-tune-glow);
}


.string-key.locked {
  background: linear-gradient(180deg, var(--bg-card) 0%, #201E18 100%);
  transform: translateY(2px);
  border-color: rgba(200, 160, 112, 0.18);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.string-key.locked .key-edge {
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.2);
}

.string-key.locked .key-indicator {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent), 0 0 12px var(--accent-glow);
}


.piano-meter-module {
  padding: 0;
}

.piano-88 {
  position: relative;
  height: 72px;
  border-radius: 0 0 var(--r-md) var(--r-md);
  overflow: hidden;
  border: 1px solid var(--piano-border, rgba(80, 70, 50, 0.3));
  border-block-start: 2px solid var(--piano-border-top, rgba(0, 0, 0, 0.3));
  background: var(--piano-bg, #181614);
  box-shadow: var(--piano-shadow, inset 0 1px 4px rgba(0, 0, 0, 0.5), 0 3px 10px rgba(0, 0, 0, 0.3));
}

.piano-88-white-layer {
  display: flex;
  height: 100%;
}

.piano-88-black-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.pk88 {
  position: relative;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.08s ease-out, background-color 0.15s, box-shadow 0.15s;
  --press-value: 0;
}


.pk88-w {
  flex: 1;
  min-width: 0;
  background: linear-gradient(180deg, #F4F0E8 0%, #E0DACB 100%);
  height: 100%;
  border-inline-end: 1px solid rgba(0, 0, 0, 0.09);
  border-end-start-radius: 3px;
  border-end-end-radius: 3px;
  box-shadow:
    inset 0 calc(var(--press-value) * 6px) calc(var(--press-value) * 8px) rgba(0, 0, 0, 0.3),
    inset 0 -2px 3px rgba(0, 0, 0, 0.05),
    0 1px 2px rgba(0, 0, 0, 0.12);
}

.pk88-w:last-child {
  border-inline-end: none;
}

.pk88-w:hover {
  background: linear-gradient(180deg, #FEFCF6 0%, #EBE5D8 100%);
}

.pk88-w.active {
  background: var(--active-bg, linear-gradient(180deg, #F4F0E8 0%, #E0DACB 100%)) !important;
  box-shadow: var(--active-glow, inset 0 -2px 3px rgba(0, 0, 0, 0.05)) !important;
}



.pk88-b {
  position: absolute;
  inset-block-start: 0;
  height: calc(62% - (var(--press-value) * 3%));
  pointer-events: auto;
  background: linear-gradient(180deg, #2A2620 0%, #1C1A14 100%);
  border-end-start-radius: 3px;
  border-end-end-radius: 3px;
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.55),
    inset 0 -1px 0 rgba(255, 255, 255, 0.05);
  z-index: 2;
  transition: height 0.08s ease-out, background-color 0.15s, box-shadow 0.15s;
}

.pk88-b:hover {
  background: linear-gradient(180deg, #38342C 0%, #24221A 100%);
}

.pk88-b:active {
  height: 60%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

.pk88-b.active {
  background: var(--active-bg, linear-gradient(180deg, #2A2620 0%, #1C1A14 100%)) !important;
  box-shadow: var(--active-glow, 0 2px 4px rgba(0, 0, 0, 0.55)) !important;
}

.pk88.pk88-w.manual-press {
  box-shadow:
    inset 0 6px 8px rgba(0, 0, 0, 0.3),
    inset 0 -2px 3px rgba(0, 0, 0, 0.05),
    0 1px 2px rgba(0, 0, 0, 0.12) !important;
}

.pk88.pk88-b.manual-press {
  height: 59%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

.piano-indicator {
  position: absolute;
  inset-block-start: auto;
  inset-block-end: 0;
  width: 6px;
  height: 6px;
  margin-block-end: 4px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  box-shadow: 0 0 8px rgba(240, 160, 48, 0.7), 0 0 3px rgba(255, 255, 255, 0.3);
  z-index: 10;
  transition: inset-inline-start 0.1s ease-out, inset-block-end 0.15s ease-out,
    background 0.2s, box-shadow 0.2s, opacity 0.3s;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
}

.piano-indicator.active {
  opacity: 1;
}

.piano-labels {
  display: flex;
  justify-content: space-between;
  padding: 0.2rem 4px 0;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.piano-labels span:nth-child(2) {
  color: var(--text-mid);
}


.error-banner {
  position: fixed;
  inset-block-start: 1rem;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 400px;
  background: var(--error);
  color: #fff;
  padding: 1rem;
  border-radius: var(--r-lg);
  z-index: 200;
  transition: transform 0.3s, opacity 0.3s;
  box-shadow: 0 10px 30px rgba(248, 113, 113, 0.25);
}

.error-banner.hidden {
  transform: translate(-50%, -100%);
  opacity: 0;
  pointer-events: none;
}

.error-content {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.error-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.error-text {
  flex: 1;
}

.error-text p {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.btn-sm {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  padding: 0.4rem 1rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 0.8rem;
}


.bottom-sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.bottom-sheet-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.bottom-sheet {
  position: fixed;
  inset-block-end: 0;
  inset-inline-start: 0;
  inset-inline-end: 0;
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
  background: var(--bg-modal);
  background-image: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, transparent 100%);
  border-block-start: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.6), 0 -1px 4px rgba(0, 0, 0, 0.4);
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.25rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));
  gap: 0.85rem;
}

.bottom-sheet.open {
  transform: translateY(0);
}

.bottom-sheet-handle {
  width: 40px;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  margin-block-end: 0.25rem;
  cursor: pointer;
}

.palette-switcher {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-md);
  width: 100%;
  flex-wrap: wrap;
  justify-content: space-between;
}

.palette-divider {
  display: none;
}

.palette-label {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--text-main);
  margin: 0;
  text-transform: none;
}

.palette-swatches-container {
  display: flex;
  gap: 10px;
  align-items: center;
}

.swatch {
  position: relative;
  display: block;
  width: 30px;
  height: 30px;
  min-width: 30px;
  min-height: 30px;
  aspect-ratio: 1 / 1;
  flex-shrink: 0;
  border-radius: 50%;
  border: none;
  outline: none;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background-clip: padding-box;
}

.swatch::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.3), inset 0 -2px 4px rgba(0, 0, 0, 0.2), 0 2px 6px rgba(0, 0, 0, 0.3);
  pointer-events: none;
  z-index: 2;
  transition: box-shadow 0.2s;
}

.swatch::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: 50%;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(0.5);
  transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.4));
}

.swatch:hover {
  transform: scale(1.1);
}

.swatch-active::after {
  opacity: 1;
  transform: scale(1);
}

.bottom-sheet-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.bottom-sheet-dev-tools {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.bottom-sheet-dev-tools[hidden] {
  display: none;
}

.setting-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 50px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-md);
  transition: background 0.2s ease, border-color 0.2s ease;
  position: relative;
  cursor: pointer;
}

.setting-row:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.setting-row label {
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 500;
  letter-spacing: 0.3px;
  pointer-events: none;
  grid-column: 1;
  grid-row: 1;
  margin: 0;
}

.setting-row select.preset-dropdown {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  z-index: 10;
}

.setting-row::after {
  content: attr(data-value);
  font-size: 0.95rem;
  color: var(--wood-light);
  font-weight: 600;
  pointer-events: none;
  grid-column: 2;
  grid-row: 1;
  text-align: right;
  display: flex;
  align-items: center;
}

.setting-row .row-chevron {
  width: 14px;
  height: 14px;
  color: var(--text-main);
  opacity: 0.7;
  pointer-events: none;
  grid-column: 3;
  grid-row: 1;
  display: flex;
  align-items: center;
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  font-size: 0.95rem;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.action-btn:active {
  transform: translateY(1px);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.05);
}

.action-btn:disabled {
  opacity: 0.48;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.action-btn:disabled:hover,
.action-btn:disabled:active {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
  transform: none;
}

.action-btn svg {
  flex-shrink: 0;
}

.action-btn-label {
  min-width: 0;
}

.action-inline-note {
  width: 100%;
  margin-block: -2px 2px;
  margin-inline: 0;
  padding-block: 10px;
  padding-inline: 12px;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.action-inline-note[hidden] {
  display: none;
}

.app-footer {
  margin-block-start: 1.5rem;
  padding-block: 1rem 4.5rem;
  border-block-start: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.feature-promo-unit {
  position: relative;
  width: 100%;
  max-width: 308px;
  display: block;
  overflow: visible;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  text-decoration: none;
  opacity: 0.96;
  transition: opacity 0.18s ease;
}

.feature-promo-unit img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.feature-promo-unit:hover {
  opacity: 1;
}

.feature-promo-unit:active {
  opacity: 0.9;
}

.promo-label {
  position: absolute;
  inset-block-start: 6px;
  inset-inline-start: 6px;
  z-index: 1;
  font-size: 0.5rem;
  padding: 3px 6px;
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 0;
  color: rgba(0, 0, 0, 0.72);
  background: rgba(255, 255, 255, 0.82);
  line-height: 1;
  pointer-events: none;
}

.is-offline .feature-promo-unit {
  display: none !important;
}

.footer-info {
  text-align: center;
  width: 100%;
  padding-inline: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.privacy-notice {
  font-size: 0.65rem;
  color: var(--text-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin: 0;
  line-height: 1.5;
  opacity: 0.8;
  text-align: left;
}

.disclaimer {
  font-size: 0.65rem;
  color: var(--text-mid);
  line-height: 1.6;
  opacity: 0.8;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.footer-link {
  color: var(--wood-light);
  text-decoration: underline;
  display: inline-block;
  margin-block-start: 0.1rem;
  white-space: nowrap;
}

.footer-link:hover {
  text-decoration: underline;
}

.privacy-notice svg {
  flex-shrink: 0;
  color: var(--in-tune);
  margin-block-start: -0.1rem;
}

.dev-toolbar {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding-block: 0;
}

.btn-dev {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1;
  min-height: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.btn-dev:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.btn-dev:active {
  transform: translateY(1px);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.05);
}



.skin-pastel-white {
  --bg-base: #EBE7DA;
  --bg-panel: #F2EFE5;
  --bg-card: #FAF8F2;
  --bg-elevated: #FFFFFF;
  --bg-inset: #E0DBCB;
  --wood: #C6B9A7;
  --wood-light: #DAD0C1;
  --wood-glow: rgba(198, 185, 167, 0.25);
  --text-main: #1A1410;
  --text-mid: #403429;
  --text-muted: #6B5B4C;
  --accent: #D28163;
  --accent-glow: rgba(210, 129, 99, 0.25);
  --in-tune: #4C9E74;
  --in-tune-glow: rgba(76, 158, 116, 0.25);
  --shadow-dark: rgba(70, 60, 50, 0.15);
  --highlight-warm: rgba(255, 255, 255, 0.9);
  --bg-modal: #F2EFE5;
  --piano-border: rgba(198, 185, 167, 0.5);
  --piano-border-top: rgba(198, 185, 167, 0.5);
  --piano-bg: var(--bg-card);
  --piano-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.8), 0 3px 10px rgba(70, 60, 50, 0.1);
}

.skin-pastel-white .app-container {
  color: var(--text-main);
  border-inline-start-color: rgba(198, 185, 167, 0.4);
  border-inline-end-color: rgba(198, 185, 167, 0.4);
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, transparent 15%, transparent 85%, rgba(255, 255, 255, 0.4) 100%);
  box-shadow: inset 0 0 50px rgba(198, 185, 167, 0.15), 0 0 60px rgba(70, 60, 50, 0.1);
}

.skin-pastel-white .gadget-panel,
.skin-pastel-white .radio-tuner-module,
.skin-pastel-white .strings-container {
  background:
    repeating-linear-gradient(160deg, transparent, transparent 4px, rgba(198, 185, 167, 0.04) 4px, rgba(198, 185, 167, 0.04) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, var(--bg-panel) 100%);
  border-color: rgba(198, 185, 167, 0.5);
  box-shadow: 0 4px 15px rgba(70, 60, 50, 0.08), inset 0 1px 0 rgba(255, 255, 255, 1);
}

.skin-pastel-white .string-key { border-color: rgba(198, 185, 167, 0.6); background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-card) 100%); box-shadow: 0 2px 6px rgba(70, 60, 50, 0.12), inset 0 1px 2px rgba(255,255,255,0.8); }
.skin-pastel-white .string-key:hover { border-color: rgba(198, 185, 167, 0.8); box-shadow: 0 3px 10px rgba(70, 60, 50, 0.18), inset 0 1px 2px rgba(255,255,255,0.9); }
.skin-pastel-white .key-indicator { background: rgba(198, 185, 167, 0.4); }
.skin-pastel-white .bottom-sheet { border-block-start: 1px solid rgba(198, 185, 167, 0.4); box-shadow: 0 -8px 40px rgba(70, 60, 50, 0.1), 0 -2px 6px rgba(70, 60, 50, 0.06); }
.skin-pastel-white .setting-row, .skin-pastel-white .action-btn, .skin-pastel-white .palette-switcher { background: var(--bg-card); border-color: rgba(198, 185, 167, 0.4); box-shadow: 0 1px 4px rgba(70, 60, 50, 0.06); }
.skin-pastel-white .setting-row::after { color: var(--text-mid); }
.skin-pastel-white .setting-row:hover, .skin-pastel-white .action-btn:hover { background: var(--bg-elevated); border-color: rgba(198, 185, 167, 0.7); box-shadow: 0 2px 6px rgba(70, 60, 50, 0.1); }
.skin-pastel-white .preset-dropdown { background: var(--bg-panel); border-color: rgba(198, 185, 167, 0.4); color: var(--text-main); box-shadow: 0 1px 3px rgba(70, 60, 50, 0.08); }
.skin-pastel-white .btn-icon { background: var(--bg-card); border-color: rgba(198, 185, 167, 0.4); box-shadow: 0 1px 3px rgba(70, 60, 50, 0.08); }
.skin-pastel-white .settings-fab { --settings-fab-outline: rgba(198, 185, 167, 0.22); --settings-fab-outline-frame: rgba(198, 185, 167, 0.10); }
.skin-pastel-white .btn-icon:hover { border-color: rgba(198, 185, 167, 0.7); box-shadow: 0 2px 5px rgba(70, 60, 50, 0.12); }
.skin-pastel-white a, .skin-pastel-white .footer-links a { color: var(--text-mid); }
.skin-pastel-white a:hover, .skin-pastel-white .footer-links a:hover { color: var(--text-main); }

.skin-pastel-white .module-label, .skin-pastel-white .radio-tuner-module .module-label { color: var(--text-muted); opacity: 1; }
.skin-pastel-white .mic-start-message { background: rgba(255, 255, 255, 0.8); border-color: rgba(198, 185, 167, 0.6); color: var(--text-main); box-shadow: 0 2px 8px rgba(70, 60, 50, 0.1); }
.skin-pastel-white .btn-start-inline { color: var(--text-main); }

.skin-obsidian {
  --bg-base: #1C1C1E;
  --bg-panel: #242426;
  --bg-card: #2C2C2E;
  --bg-elevated: #3A3A3C;
  --bg-inset: #121213;
  --wood: #5C5C60;
  --wood-light: #8E8E93;
  --wood-glow: rgba(200, 200, 205, 0.1);
  --text-main: #F2F2F7;
  --text-mid: #AEAEB2;
  --text-muted: #8E8E93;
  --accent: #E5E5EA;
  --accent-glow: rgba(229, 229, 234, 0.2);
  --in-tune: #34C759;
  --in-tune-glow: rgba(52, 199, 89, 0.3);
  --shadow-dark: rgba(0, 0, 0, 0.8);
  --highlight-warm: rgba(255, 255, 255, 0.06);
  --bg-modal: #242426;
}

.skin-obsidian .app-container {
  color: var(--text-main);
  border-inline-start-color: rgba(255, 255, 255, 0.05);
  border-inline-end-color: rgba(255, 255, 255, 0.05);
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, transparent 15%, transparent 85%, rgba(255, 255, 255, 0.01) 100%);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.3), 0 0 60px rgba(0, 0, 0, 0.5);
}

.skin-obsidian .gadget-panel,
.skin-obsidian .radio-tuner-module,
.skin-obsidian .strings-container {
  background:
    repeating-linear-gradient(160deg, transparent, transparent 4px, rgba(255, 255, 255, 0.015) 4px, rgba(255, 255, 255, 0.015) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, #242426 100%);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.skin-obsidian .string-key { border-color: rgba(255, 255, 255, 0.1); background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-card) 100%); box-shadow: 0 2px 8px rgba(0,0,0,0.3), inset 0 1px 1px rgba(255,255,255,0.05); }
.skin-obsidian .string-key:hover { border-color: rgba(255, 255, 255, 0.2); box-shadow: 0 3px 10px rgba(0,0,0,0.4), inset 0 1px 1px rgba(255,255,255,0.08); }
.skin-obsidian .key-indicator { background: rgba(255, 255, 255, 0.1); }
.skin-obsidian .bottom-sheet { border-block-start: 1px solid rgba(255, 255, 255, 0.08); box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.6), 0 -1px 4px rgba(0, 0, 0, 0.4); }
.skin-obsidian .setting-row, .skin-obsidian .action-btn, .skin-obsidian .palette-switcher { background: var(--bg-card); border-color: rgba(255, 255, 255, 0.08); box-shadow: 0 2px 6px rgba(0,0,0,0.2); }
.skin-obsidian .setting-row::after { color: var(--text-main); }
.skin-obsidian .setting-row:hover, .skin-obsidian .action-btn:hover { background: var(--bg-elevated); border-color: rgba(255, 255, 255, 0.15); box-shadow: 0 3px 8px rgba(0,0,0,0.3); }
.skin-obsidian .preset-dropdown { background: var(--bg-panel); border-color: rgba(255, 255, 255, 0.08); color: var(--text-main); }
.skin-obsidian .btn-icon { background: var(--bg-card); border-color: rgba(255, 255, 255, 0.08); box-shadow: 0 2px 6px rgba(0,0,0,0.2); }
.skin-obsidian .settings-fab { --settings-fab-outline: rgba(255, 255, 255, 0.10); --settings-fab-outline-frame: rgba(255, 255, 255, 0.05); }
.skin-obsidian .btn-icon:hover { border-color: rgba(255, 255, 255, 0.15); box-shadow: 0 3px 8px rgba(0,0,0,0.3); }

.skin-obsidian .btn-start-inline { color: var(--text-main); }

.skin-pastel-mint {
  --bg-base: #9AC0AE;
  --bg-panel: #ACCEBE;
  --bg-card: #C3DFD1;
  --bg-elevated: #D2E9DC;
  --bg-inset: #87AD9A;
  --wood: #658F7B;
  --wood-light: #7DA691;
  --wood-glow: rgba(101, 143, 123, 0.25);
  --text-main: #142E20;
  --text-mid: #254A36;
  --text-muted: #437358;
  --accent: #EBAA6A;
  --accent-glow: rgba(235, 170, 106, 0.35);
  --in-tune: #3A9C5E;
  --in-tune-glow: rgba(58, 156, 94, 0.3);
  --shadow-dark: rgba(20, 50, 35, 0.18);
  --highlight-warm: rgba(255, 255, 255, 0.85);
  --bg-modal: #ACCEBE;
  --piano-border: rgba(101, 143, 123, 0.5);
  --piano-border-top: rgba(101, 143, 123, 0.5);
  --piano-bg: var(--bg-card);
  --piano-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.7), 0 3px 10px rgba(20, 50, 35, 0.1);
}

.skin-pastel-mint .app-container {
  color: var(--text-main);
  border-inline-start-color: rgba(101, 143, 123, 0.4);
  border-inline-end-color: rgba(101, 143, 123, 0.4);
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, transparent 15%, transparent 85%, rgba(255, 255, 255, 0.4) 100%);
  box-shadow: inset 0 0 50px rgba(101, 143, 123, 0.15), 0 0 60px rgba(20, 50, 35, 0.15);
}

.skin-pastel-mint .gadget-panel,
.skin-pastel-mint .radio-tuner-module,
.skin-pastel-mint .strings-container {
  background:
    repeating-linear-gradient(160deg, transparent, transparent 4px, rgba(101, 143, 123, 0.05) 4px, rgba(101, 143, 123, 0.05) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, var(--bg-panel) 100%);
  border-color: rgba(101, 143, 123, 0.4);
  box-shadow: 0 5px 20px rgba(20, 50, 35, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.skin-pastel-mint .string-key { border-color: rgba(101, 143, 123, 0.5); background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-card) 100%); box-shadow: 0 3px 8px rgba(20, 50, 35, 0.15), inset 0 1px 2px rgba(255,255,255,0.7); }
.skin-pastel-mint .string-key:hover { border-color: rgba(101, 143, 123, 0.8); box-shadow: 0 4px 12px rgba(20, 50, 35, 0.2), inset 0 1px 2px rgba(255,255,255,0.8); }
.skin-pastel-mint .key-indicator { background: rgba(101, 143, 123, 0.4); }
.skin-pastel-mint .bottom-sheet { border-block-start: 1px solid rgba(101, 143, 123, 0.3); box-shadow: 0 -8px 40px rgba(20, 50, 35, 0.15), 0 -2px 6px rgba(20, 50, 35, 0.08); }
.skin-pastel-mint .setting-row, .skin-pastel-mint .action-btn, .skin-pastel-mint .palette-switcher { background: var(--bg-card); border-color: rgba(101, 143, 123, 0.3); box-shadow: 0 2px 6px rgba(20, 50, 35, 0.08); }
.skin-pastel-mint .setting-row::after { color: var(--text-mid); }
.skin-pastel-mint .setting-row:hover, .skin-pastel-mint .action-btn:hover { background: var(--bg-elevated); border-color: rgba(101, 143, 123, 0.6); box-shadow: 0 3px 8px rgba(20, 50, 35, 0.12); }
.skin-pastel-mint .preset-dropdown { background: var(--bg-panel); border-color: rgba(101, 143, 123, 0.3); color: var(--text-main); box-shadow: 0 2px 4px rgba(20, 50, 35, 0.08); }
.skin-pastel-mint .btn-icon { background: var(--bg-card); border-color: rgba(101, 143, 123, 0.3); box-shadow: 0 2px 4px rgba(20, 50, 35, 0.08); }
.skin-pastel-mint .settings-fab { --settings-fab-outline: rgba(101, 143, 123, 0.2); --settings-fab-outline-frame: rgba(101, 143, 123, 0.1); }
.skin-pastel-mint .btn-icon:hover { border-color: rgba(101, 143, 123, 0.6); box-shadow: 0 3px 6px rgba(20, 50, 35, 0.12); }
.skin-pastel-mint a, .skin-pastel-mint .footer-links a { color: var(--text-mid); }
.skin-pastel-mint a:hover, .skin-pastel-mint .footer-links a:hover { color: var(--text-main); }

.skin-pastel-mint .module-label, .skin-pastel-mint .radio-tuner-module .module-label { color: var(--text-muted); opacity: 1; }
.skin-pastel-mint .mic-start-message { background: rgba(255, 255, 255, 0.7); border-color: rgba(101, 143, 123, 0.6); color: var(--text-main); box-shadow: 0 2px 8px rgba(20, 50, 35, 0.1); }
.skin-pastel-mint .btn-start-inline { color: var(--text-main); }

.skin-navy-sky {
  --bg-base: #1C2632;
  --bg-panel: #263442;
  --bg-card: #324455;
  --bg-elevated: #40566A;
  --bg-inset: #121922;
  --wood: #7BA4C6;
  --wood-light: #A9CDEE;
  --wood-glow: rgba(123, 164, 198, 0.2);
  --text-main: #EDEDED;
  --text-mid: #A0B0C0;
  --text-muted: #708090;
  --accent: #FDE047;
  --accent-glow: rgba(253, 224, 71, 0.3);
  --in-tune: #6EE7B7;
  --in-tune-glow: rgba(110, 231, 183, 0.3);
  --shadow-dark: rgba(10, 20, 30, 0.4);
  --highlight-warm: rgba(200, 230, 255, 0.06);
  --bg-modal: #36495C;
}

.skin-navy-sky .app-container {
  color: var(--text-main);
  border-inline-start-color: rgba(123, 164, 198, 0.25);
  border-inline-end-color: rgba(123, 164, 198, 0.25);
  background-image: linear-gradient(180deg, rgba(123, 164, 198, 0.1) 0%, transparent 15%, transparent 85%, rgba(123, 164, 198, 0.08) 100%);
}

.skin-navy-sky .gadget-panel,
.skin-navy-sky .radio-tuner-module,
.skin-navy-sky .strings-container {
  background:
    repeating-linear-gradient(160deg, transparent, transparent 4px, rgba(123, 164, 198, 0.02) 4px, rgba(123, 164, 198, 0.02) 5px),
    linear-gradient(180deg, var(--bg-card) 0%, #263442 100%);
  border-color: rgba(123, 164, 198, 0.15);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.skin-navy-sky .string-key { border-color: rgba(123, 164, 198, 0.15); box-shadow: 0 2px 8px rgba(0,0,0,0.25); }
.skin-navy-sky .string-key:hover { border-color: rgba(123, 164, 198, 0.3); box-shadow: 0 3px 10px rgba(0,0,0,0.3); }
.skin-navy-sky .key-indicator { background: rgba(123, 164, 198, 0.2); }
.skin-navy-sky .preset-dropdown { background: var(--bg-panel); color: var(--text-main); }
.skin-navy-sky .setting-row::after { color: var(--text-main); }
.skin-navy-sky .settings-fab { --settings-fab-outline: rgba(123, 164, 198, 0.18); --settings-fab-outline-frame: rgba(123, 164, 198, 0.09); }

.skin-navy-sky .btn-start-inline { color: var(--text-main); }

.btn-dev.recording {
  background: rgba(248, 113, 113, 0.15);
  border-color: rgba(248, 113, 113, 0.3);
  color: #F87171;
  animation: rec-pulse 1.2s ease-in-out infinite;
}

@keyframes rec-pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}