/* TR-909 SynthMachine — Dark Amber Theme */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --amber-50: #fffbeb;
  --amber-100: #fef3c7;
  --amber-200: #fde68a;
  --amber-300: #fcd34d;
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --amber-700: #b45309;
  --amber-800: #92400e;
  --amber-900: #78350f;

  --bg-dark: #0a0a0a;
  --bg-panel: #141414;
  --bg-card: #1a1a1a;
  --bg-elevated: #222;

  --text-primary: #fafafa;
  --text-secondary: #888;
  --text-muted: #555;

  --border-subtle: #2a2a2a;
  --border-accent: #333;

  font-family: 'Space Grotesk', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2rem;
  background: var(--bg-dark);
  background-image:
    radial-gradient(ellipse at top, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(245, 158, 11, 0.05) 0%, transparent 40%);
  min-height: 100vh;
  color: var(--text-primary);
}

/* Main Panel */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  box-shadow:
    0 0 80px rgba(245, 158, 11, 0.1),
    0 25px 50px rgba(0, 0, 0, 0.5);
}

/* Header */
h1 {
  margin: 0 0 1.5rem 0;
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber-400);
  display: flex;
  align-items: center;
  gap: 1rem;
}

h1::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--amber-500);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--amber-500), 0 0 24px var(--amber-600);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Header Row with Engine Selector */
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.header-row h1 {
  margin: 0;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Header Icon Buttons */
.header-icon-btn {
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
}

.header-icon-btn:hover {
  color: var(--amber-400);
  opacity: 1;
  background: rgba(245, 158, 11, 0.1);
}

/* Share Modal */
.share-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.share-modal.active {
  display: flex;
}

.share-modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  padding: 1rem;
  width: 280px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.share-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.share-modal-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}

.share-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.share-modal-close:hover {
  color: var(--text-primary);
}

.share-modal-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.share-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.share-option:hover {
  background: var(--bg-elevated);
  border-color: var(--amber-700);
}

.share-option:disabled {
  opacity: 0.5;
  cursor: wait;
}

.share-option-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-dark);
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--amber-400);
  flex-shrink: 0;
}

.share-option-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.share-option-text strong {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.share-option-text small {
  font-size: 0.6rem;
  color: var(--text-muted);
}

/* Manage Patterns Modal */
.manage-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.manage-modal.active {
  display: flex;
}

.manage-modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  padding: 1rem;
  width: 320px;
  max-height: 80vh;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.manage-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.manage-modal-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}

.manage-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.manage-modal-close:hover {
  color: var(--text-primary);
}

.manage-modal-body {
  max-height: 300px;
  overflow-y: auto;
}

.manage-patterns-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.manage-pattern-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.manage-pattern-name {
  font-size: 0.75rem;
  color: var(--text-primary);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.manage-pattern-bpm {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
  flex-shrink: 0;
}

.manage-pattern-actions {
  display: flex;
  gap: 0.25rem;
  margin-left: 0.75rem;
}

.manage-pattern-actions button {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.25rem 0.4rem;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.manage-pattern-actions button:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.manage-pattern-actions .overwrite-btn:hover {
  color: var(--amber-400);
  background: rgba(245, 158, 11, 0.1);
}

.manage-pattern-actions .delete-btn:hover {
  color: #f87171;
  background: rgba(248, 113, 113, 0.1);
}

.manage-empty {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 2rem 1rem;
}

.engine-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.engine-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  color: var(--amber-400);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  min-width: 3rem;
  text-align: center;
}

.engine-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--amber-600);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.2);
}

.engine-btn:active {
  transform: scale(0.95);
}

/* Controls Bar */
.controls {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px 10px 0 0;
  border-bottom: none;
}

/* Second row: Volume + Play */
.controls-row-2 {
  border-radius: 0 0 10px 10px;
  border-top: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.controls-spacer {
  flex: 1;
}

.storage-controls {
  background: transparent;
  border: 1px dashed var(--border-accent);
  padding: 0.75rem 1rem;
}

/* Pattern Tabs */
.pattern-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
}

.tab-content {
  display: none;
  align-items: center;
  gap: 0.4rem;
}

.tab-content.active {
  display: flex;
}

.tab-content select {
  min-width: 130px;
}

.tab-content button {
  padding: 0.4rem 0.6rem;
  font-size: 1rem;
  line-height: 1;
}

.tab-dots {
  display: flex;
  gap: 6px;
  margin-left: 0.25rem;
}

.tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--border-accent);
  cursor: pointer;
  padding: 0;
  transition: all 0.2s ease;
}

.tab-dot:hover {
  background: var(--text-muted);
}

.tab-dot.active {
  background: var(--amber-500);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

/* Kit & Pattern Row */
.kit-pattern-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.kit-pattern-row label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
}

.kit-pattern-row select {
  -webkit-appearance: none;
  appearance: none;
  min-width: 110px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--amber-400);
  background: var(--bg-dark);
  border: 1px solid var(--border-accent);
  border-radius: 6px;
  padding: 0.45rem 1.8rem 0.45rem 0.6rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23f59e0b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  cursor: pointer;
}

.kit-label select {
  border-color: var(--amber-700);
}

.pattern-label select {
  min-width: 130px;
  border-color: var(--border-accent);
}


.controls-divider {
  width: 1px;
  height: 24px;
  background: var(--border-accent);
  margin: 0 0.5rem;
}

.controls label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
}

.controls label span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--amber-400);
  min-width: 32px;
}

.controls input[type='number'] {
  width: 4.5rem;
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border-accent);
  background: var(--bg-dark);
  color: var(--amber-400);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
}

.controls input[type='number']:focus {
  outline: none;
  border-color: var(--amber-600);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.controls input[type='range'] {
  width: 70px;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--bg-dark);
  outline: none;
}

.controls input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--amber-400), var(--amber-600));
  cursor: pointer;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
  transition: transform 0.1s;
}

.controls input[type='range']::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.controls input[type='range']::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--amber-400), var(--amber-600));
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

.controls select {
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border-accent);
  background: var(--bg-dark);
  color: var(--text-primary);
  font-size: 0.8rem;
  cursor: pointer;
  min-width: 150px;
}

.controls select:focus {
  outline: none;
  border-color: var(--amber-600);
}

/* Compact inline selects (Length, Scale) */
.controls label.compact-select {
  gap: 0.35rem;
}

.controls label.compact-select span {
  font-size: 0.55rem;
  min-width: auto;
  color: var(--text-muted);
}

.controls label.compact-select select {
  min-width: auto;
  width: auto;
  padding: 0.3rem 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--amber-400);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
}

/* Buttons */
.controls button {
  padding: 0.6rem 1.25rem;
  border-radius: 6px;
  border: none;
  font-weight: 600;
  font-size: 0.75rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all 0.15s ease;
}

.controls button#play-toggle {
  background: linear-gradient(135deg, var(--amber-500), var(--amber-700));
  color: #000;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
  min-width: 70px;
}

.controls button#play-toggle:hover {
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.5);
  transform: translateY(-1px);
}

.controls button#save-pattern {
  background: transparent;
  color: var(--amber-400);
  border: 1px solid var(--amber-800);
}

.controls button#delete-pattern {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-accent);
}

/* Status */
#status {
  min-height: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-bottom: 1.25rem;
  padding-left: 0.25rem;
}

/* Sequencer Grid */
.sequencer {
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.voice-row {
  display: grid;
  grid-template-columns: 100px repeat(16, 1fr);
  gap: 4px;
  align-items: center;
}

.voice-label,
.voice-label-short {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  background: none;
  border: none;
  padding: 0.25rem 0.35rem;
  margin: -0.25rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.voice-label:hover,
.voice-label-short:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* Muted state: strikethrough + dimmed */
.voice-label.muted,
.voice-label-short.muted {
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-color: var(--amber-800);
}

/* Solo state: amber highlight */
.voice-label.solo,
.voice-label-short.solo {
  color: var(--amber-400);
  background: rgba(245, 158, 11, 0.1);
  box-shadow: 0 0 0 1px var(--amber-700);
}

/* Dimmed row (won't play) */
.voice-row--dimmed .step {
  opacity: 0.3;
}

/* Step Buttons */
.step {
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 4px;
  border: none;
  outline: 1px solid var(--border-subtle);
  outline-offset: -1px;
  background: var(--bg-card);
  cursor: pointer;
  transition: background 0.1s ease, outline-color 0.1s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.step:hover:not(.step--on) {
  background: var(--bg-elevated);
}

.step--on,
.step--on:hover {
  background: linear-gradient(135deg, var(--amber-600), var(--amber-800));
  outline-color: transparent;
}

.step--accent,
.step--accent:hover {
  background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
  outline-color: transparent;
}

/* Subtle playhead - just a gentle brightness lift */
.step--playing {
  background: var(--bg-elevated);
}

.step--on.step--playing {
  background: linear-gradient(135deg, var(--amber-500), var(--amber-700));
}

.step--accent.step--playing {
  background: linear-gradient(135deg, var(--amber-400), var(--amber-500));
}

/* Bar lines - subtle dividers every 4 steps */
.step[data-index="4"],
.step[data-index="8"],
.step[data-index="12"] {
  position: relative;
}

.step[data-index="4"]::before,
.step[data-index="8"]::before,
.step[data-index="12"]::before {
  content: '';
  position: absolute;
  left: -3px;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border-accent);
  opacity: 0.4;
}

/* Voice Parameters with Knobs */
.voice-controls {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.voice-controls h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  margin: 0 0 1.25rem 0;
}

.params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

/* Voice Panel */
.voice-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1rem;
  transition: border-color 0.2s;
}

.voice-panel:hover {
  border-color: var(--border-accent);
}

.voice-panel-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.voice-panel-led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: all 0.1s;
}

.voice-panel-led.active {
  background: var(--amber-400);
  box-shadow: 0 0 10px var(--amber-500);
}

.voice-panel-name {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

/* Sample/Synth Toggle */
.sample-toggle {
  margin-left: auto;
  width: 20px;
  height: 20px;
  padding: 0;
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  background: var(--bg-dark);
  color: var(--text-muted);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sample-toggle:hover {
  border-color: var(--amber-700);
  color: var(--text-secondary);
}

.sample-toggle.sample-active {
  background: var(--amber-700);
  border-color: var(--amber-600);
  color: #000;
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.4);
}

/* Per-voice Engine Toggle (E1/E2) */
.engine-toggle-mini {
  margin-left: auto;
  width: 18px;
  height: 18px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 9px;
  background: #4a4a4a;
  color: rgba(255, 255, 255, 0.85);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.engine-toggle-mini:hover {
  background: #555;
  border-color: rgba(255, 255, 255, 0.25);
}

.engine-toggle-mini.engine-e2 {
  background: #8b6914;
  border-color: rgba(180, 140, 60, 0.5);
  color: rgba(255, 255, 255, 0.9);
  box-shadow: none;
}

.engine-toggle-mini.engine-e2:hover {
  background: #9a7518;
  border-color: rgba(200, 160, 70, 0.6);
}

/* When both sample toggle and engine toggle exist */
.sample-toggle + .engine-toggle-mini {
  margin-left: 0.35rem;
}

/* Voice Info Button */
.voice-info-btn {
  width: 16px;
  height: 16px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.6rem;
  font-style: italic;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0.4;
  margin-left: 0.25rem;
}

.voice-info-btn:hover {
  color: var(--amber-400);
  opacity: 1;
}

/* Voice Info Modal */
.voice-info-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.voice-info-modal.active {
  display: flex;
}

.voice-info-content {
  background: var(--bg-panel);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  padding: 1.25rem;
  max-width: 320px;
  width: 100%;
  max-height: 50vh;
  overflow-y: auto;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.voice-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.voice-info-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}

.voice-info-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.voice-info-close:hover {
  color: var(--text-primary);
}

.voice-info-section {
  margin-bottom: 0.75rem;
}

.voice-info-section:last-child {
  margin-bottom: 0;
}

.voice-info-label {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.voice-info-label.e2 {
  color: var(--amber-600);
}

.voice-info-text {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--text-secondary);
}

.voice-info-note {
  font-size: 0.65rem;
  font-style: italic;
  color: var(--text-muted);
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border-subtle);
}

/* Knobs Container */
.knobs-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* Individual Knob */
.knob-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.knob {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, #3a3a3a, #1a1a1a 70%);
  border: 2px solid #2a2a2a;
  position: relative;
  cursor: pointer;
  box-shadow:
    0 4px 8px rgba(0,0,0,0.4),
    inset 0 1px 0 rgba(255,255,255,0.1);
  transition: box-shadow 0.15s;
  touch-action: none; /* Essential for mobile knob dragging */
  -webkit-user-select: none;
  user-select: none;
}

.knob:hover {
  box-shadow:
    0 4px 12px rgba(0,0,0,0.5),
    0 0 0 1px var(--amber-800),
    inset 0 1px 0 rgba(255,255,255,0.1);
}

.knob::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3px;
  height: 14px;
  background: linear-gradient(to bottom, var(--amber-400), var(--amber-600));
  border-radius: 2px;
  transform-origin: center bottom;
  transform: translate(-50%, -100%);
  box-shadow: 0 0 6px var(--amber-500);
}

.knob::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  background: var(--bg-dark);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid #333;
}

.knob-label {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.knob-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--amber-400);
}

/* Legacy slider fallback (hidden by default, shown if knobs fail) */
.param-row {
  display: none;
}

/* Keyboard Hints */
.keyboard-hints {
  margin-top: 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.keyboard-hints kbd {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  margin: 0 0.15rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--amber-400);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border-accent);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Step Page Toggle (for mobile 8-step view) */
.step-page-toggle {
  display: none;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.step-page-btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border-accent);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.step-page-btn.active {
  background: var(--amber-700);
  border-color: var(--amber-600);
  color: #000;
}

.step-page-btn.has-playing {
  box-shadow: 0 0 8px var(--amber-500);
}

/* Mobile short labels - hidden by default */
.voice-label-short {
  display: none;
}

/* ========== MOBILE STYLES ========== */
@media (max-width: 768px) {
  body {
    padding: 0;
    margin: 0;
  }

  .panel {
    padding: 0.5rem 0;
    border-radius: 0;
    max-width: 100%;
    border: none;
    box-shadow: none;
  }

  h1 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    padding: 0 0.5rem;
  }

  /* Simplified controls on mobile */
  .controls {
    gap: 0.5rem;
    padding: 0.5rem;
    margin: 0 0.5rem 0.5rem;
    border-radius: 8px;
  }

  .controls-divider {
    display: none;
  }

  .controls label {
    font-size: 0.6rem;
  }

  .controls input[type='number'] {
    width: 3rem;
    padding: 0.35rem;
    font-size: 0.75rem;
  }

  .controls input[type='range'] {
    width: 45px;
  }

  .controls button {
    padding: 0.4rem 0.6rem;
    font-size: 0.6rem;
  }

  .controls select {
    min-width: 90px;
    font-size: 0.65rem;
    padding: 0.35rem 0.4rem;
  }

  .kit-pattern-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .kit-pattern-row select {
    min-width: 80px;
  }

  .pattern-label select {
    min-width: 100px;
  }

  .controls label.compact-select {
    gap: 0.25rem;
  }

  .controls label.compact-select select {
    font-size: 0.6rem;
    padding: 0.25rem 0.35rem;
  }

  /* Hide pattern tabs save/delete buttons on mobile */
  .tab-content button#save-pattern,
  .tab-content button#delete-pattern {
    display: none;
  }

  #status {
    font-size: 0.65rem;
    margin-bottom: 0.5rem;
  }

  /* Show step page toggle on mobile */
  .step-page-toggle {
    display: flex;
    margin-bottom: 0.5rem;
  }

  .step-page-btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.7rem;
  }

  #status {
    padding: 0 0.5rem;
  }

  /* Sequencer: full width edge-to-edge */
  .sequencer {
    margin: 0 0 0.75rem 0;
    padding: 0 4px;
    width: 100%;
    gap: 3px;
  }

  /* Sequencer grid: label + 8 equal steps */
  .voice-row {
    display: grid;
    grid-template-columns: 28px repeat(8, 1fr);
    gap: 3px;
  }

  /* Hide steps 9-16 by default (page 1) */
  .step[data-index="8"],
  .step[data-index="9"],
  .step[data-index="10"],
  .step[data-index="11"],
  .step[data-index="12"],
  .step[data-index="13"],
  .step[data-index="14"],
  .step[data-index="15"] {
    display: none;
  }

  /* When page 2 is active, hide 1-8 and show 9-16 */
  .sequencer.page-2 .step[data-index="0"],
  .sequencer.page-2 .step[data-index="1"],
  .sequencer.page-2 .step[data-index="2"],
  .sequencer.page-2 .step[data-index="3"],
  .sequencer.page-2 .step[data-index="4"],
  .sequencer.page-2 .step[data-index="5"],
  .sequencer.page-2 .step[data-index="6"],
  .sequencer.page-2 .step[data-index="7"] {
    display: none;
  }

  .sequencer.page-2 .step[data-index="8"],
  .sequencer.page-2 .step[data-index="9"],
  .sequencer.page-2 .step[data-index="10"],
  .sequencer.page-2 .step[data-index="11"],
  .sequencer.page-2 .step[data-index="12"],
  .sequencer.page-2 .step[data-index="13"],
  .sequencer.page-2 .step[data-index="14"],
  .sequencer.page-2 .step[data-index="15"] {
    display: block;
  }

  /* Short labels on mobile */
  .voice-label {
    display: none;
  }

  .voice-label-short {
    display: block;
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-align: right;
    padding: 0.2rem 2px;
    margin: 0;
  }

  .voice-label-short:hover {
    background: transparent;
  }

  .voice-label-short.muted {
    text-decoration-thickness: 1px;
  }

  .voice-label-short.solo {
    box-shadow: none;
    background: transparent;
  }

  /* Larger tap targets for steps - fill grid cell completely */
  .step {
    width: 100%;
    aspect-ratio: 1;
    min-height: 36px;
    border-radius: 3px;
    outline-width: 1px;
  }

  /* Hide bar lines on mobile */
  .step[data-index="4"]::before,
  .step[data-index="8"]::before,
  .step[data-index="12"]::before {
    display: none;
  }

  /* Voice parameters - compact layout for mobile */
  .voice-controls {
    margin-top: 1rem;
    padding: 0.75rem 0.5rem 0;
  }

  .voice-controls h2 {
    font-size: 0.7rem;
    margin-bottom: 0.75rem;
    padding: 0 0.25rem;
  }

  .params-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .voice-panel {
    padding: 0.6rem;
    border-radius: 8px;
  }

  .voice-panel-header {
    margin-bottom: 0.5rem;
    padding-bottom: 0.4rem;
  }

  .sample-toggle {
    width: 18px;
    height: 18px;
    font-size: 0.6rem;
  }

  .engine-toggle-mini {
    width: 16px;
    height: 16px;
    font-size: 0.55rem;
  }

  .sample-toggle + .engine-toggle-mini {
    margin-left: 0.25rem;
  }

  .knobs-container {
    gap: 0.75rem;
    flex-wrap: nowrap;
    justify-content: space-around;
  }

  .knob {
    width: 48px;
    height: 48px;
  }

  .knob::before {
    height: 14px;
  }

  .knob-label {
    font-size: 0.5rem;
  }

  .knob-value {
    font-size: 0.55rem;
  }

  /* Hide keyboard hints on mobile */
  .keyboard-hints {
    display: none;
  }
}