.piano-page-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 32px;
  max-width: 600px;
}
.virtual-piano {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 32px 0;
}
.piano-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  align-items: flex-end;
  justify-content: center;
}
.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.control-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.piano-select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  cursor: pointer;
  min-width: 180px;
}
.piano-select:focus {
  outline: none;
  border-color: var(--primary);
}
.octave-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}
.control-btn {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.control-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.sustain-btn {
  padding: 8px 16px;
}
.sustain-btn.active {
  background: var(--primary);
  color: var(--bg);
  border-color: var(--primary);
}
.octave-display {
  font-variant-numeric: tabular-nums;
  min-width: 32px;
  text-align: center;
  font-weight: 500;
  color: var(--primary);
}
.volume-range {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  min-width: 120px;
  margin-top: 4px;
}
.volume-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
}
.volume-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: none;
}
.piano-keyboard {
  display: flex;
  justify-content: center;
  position: relative;
  height: 200px;
  max-width: 900px;
  margin: 0 auto;
  user-select: none;
}
.piano-keyboard-full {
  max-width: 100%;
}
.piano-key {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 12px;
  cursor: pointer;
  transition: background 0.08s ease;
  position: relative;
}
.white-key {
  width: 48px;
  height: 200px;
  background: linear-gradient(to bottom, #f5f5f0, #e8e4dc);
  border: 1px solid #999;
  border-radius: 0 0 6px 6px;
  z-index: 1;
}
.white-key:hover {
  background: linear-gradient(to bottom, #fff, #f0ede6);
}
.white-key:active,
.white-key.active {
  background: linear-gradient(to bottom, var(--primary-light), var(--primary));
  border-color: var(--primary-dark);
}
.black-key {
  width: 32px;
  height: 130px;
  background: linear-gradient(to bottom, #2a2a2a, #0a0a0a);
  border: 1px solid #000;
  border-radius: 0 0 4px 4px;
  margin: 0 -16px;
  z-index: 2;
  color: #666;
}
.black-key:hover {
  background: linear-gradient(to bottom, #3a3a3a, #1a1a1a);
}
.black-key:active,
.black-key.active {
  background: linear-gradient(to bottom, var(--primary-dark), #6b4c3b);
  color: var(--primary-light);
}
.key-label {
  font-size: 0.65rem;
  pointer-events: none;
}
.white-key .key-label {
  color: #666;
}
.black-key .key-label {
  color: #666;
  font-size: 0.55rem;
}
.key-shortcut {
  font-size: 0.55rem;
  opacity: 0.4;
  pointer-events: none;
  margin-top: 2px;
}
.piano-hints {
  text-align: center;
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.piano-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 8px;
  text-align: center;
}
.piano-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 24px;
  text-align: center;
}
@media (max-width: 768px) {
  .piano-controls {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }
  .piano-keyboard {
    height: 150px;
  }
  .white-key {
    width: 28px;
    height: 150px;
  }
  .black-key {
    width: 20px;
    height: 95px;
    margin: 0 -10px;
  }
  .key-label {
    font-size: 0.45rem;
  }
  .key-shortcut {
    display: none;
  }
  .virtual-piano {
    padding: 16px;
  }
}
@media (max-width: 480px) {
  .piano-keyboard {
    height: 120px;
  }
  .white-key {
    width: 20px;
    height: 120px;
  }
  .black-key {
    width: 14px;
    height: 75px;
    margin: 0 -7px;
  }
  .key-label {
    display: none;
  }
}

/* ══════════════════════════════════════════
   Score Editor
══════════════════════════════════════════ */
.score-editor {
  margin-top: 40px;
  border-top: 2px solid var(--border);
  padding-top: 32px;
}
.score-editor-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--text);
}
.score-settings {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-bottom: 20px;
  padding: 16px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: flex-end;
}
.score-setting-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.score-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.score-input {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 10px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  min-width: 160px;
}
.score-input:focus { outline: none; border-color: var(--primary); }
.score-select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 10px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  cursor: pointer;
}
.score-select:focus { outline: none; border-color: var(--primary); }
.score-range {
  -webkit-appearance: none;
  appearance: none;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  min-width: 110px;
  margin-top: 4px;
}
.score-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
}
.score-range::-moz-range-thumb {
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: none;
}

/* Toolbar */
.score-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 12px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: center;
}
.score-toolbar-group {
  display: flex;
  align-items: center;
  gap: 4px;
}
.score-toolbar-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-right: 4px;
  white-space: nowrap;
}
.score-btn {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 10px;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: 'Times New Roman', serif;
  line-height: 1;
  min-width: 32px;
}
.score-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.score-btn.active {
  background: var(--primary);
  color: var(--btn-primary-text, #fff);
  border-color: var(--primary);
}
.score-btn-play {
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 6px 14px;
  background: var(--primary);
  color: var(--btn-primary-text, #fff);
  border-color: var(--primary);
}
.score-btn-play:hover { opacity: 0.88; color: var(--btn-primary-text, #fff); }
.score-btn-play.active {
  background: var(--text-muted);
  border-color: var(--text-muted);
}
.score-btn-rec {
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 6px 12px;
  color: #c0392b;
  border-color: #e0b0b0;
}
.score-btn-rec:hover { border-color: #c0392b; color: #c0392b; }
.score-btn-rec.active {
  background: #c0392b;
  color: #fff;
  border-color: #c0392b;
  animation: recPulse 1.2s ease-in-out infinite;
}
.score-btn-action {
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 5px 10px;
}
@keyframes recPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Note picker */
.score-note-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 12px;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: center;
}
.score-note-btn {
  font-family: var(--font-body);
  font-size: 0.88rem;
  padding: 6px 10px;
  min-width: 44px;
}
.score-oct-btn {
  font-family: var(--font-body);
  font-size: 0.88rem;
  padding: 6px 10px;
  min-width: 34px;
}

/* Canvas */
.score-canvas-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  margin-bottom: 10px;
  min-height: 140px;
}
#score-canvas {
  display: block;
  max-width: 100%;
}

.score-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .score-settings { gap: 12px; }
  .score-toolbar { gap: 6px 10px; }
  .score-toolbar-group { flex-wrap: wrap; }
}