/* Scale Generator Styles */

/* Scale Selection Controls */
.scale-controls {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  flex-direction: column;
  min-width: 140px;
}

.control-group--wide {
  flex: 1;
  min-width: 220px;
}

.select-field {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--fs-base);
  padding: var(--space-xs) var(--space-sm);
  box-sizing: border-box;
  cursor: pointer;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300ff41' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.select-field:focus {
  outline: none;
  border-color: var(--color-primary);
}

.select-field optgroup {
  color: var(--color-primary);
  font-weight: 600;
  font-style: normal;
  background: var(--color-bg);
}

.select-field option {
  color: var(--color-text);
  background: var(--color-bg);
  padding: 4px 8px;
}

.input-label {
  display: block;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
  font-family: var(--font-mono);
}

/* Playback Controls */
.playback-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.tempo-control {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.tempo-control .input-label {
  margin-bottom: 0;
  white-space: nowrap;
}

.tempo-control .slider {
  width: 120px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.tempo-value {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-primary);
  min-width: 70px;
}

/* Scale Info Panel */
.scale-info-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.info-header {
  margin-bottom: var(--space-md);
}

.info-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  color: var(--color-primary);
  margin: 0;
}

.info-alt {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin: var(--space-xs) 0 0;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.info-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.info-card--wide {
  grid-column: 1 / -1;
}

.info-card__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.info-card__value {
  font-family: var(--font-mono);
  font-size: var(--fs-base);
  color: var(--color-secondary);
  line-height: 1.6;
}

.notes-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.note-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  transition: border-color 0.2s, background 0.2s;
}

.note-chip--root {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.note-chip--active {
  background: rgba(0, 255, 65, 0.15);
  border-color: var(--color-primary);
}

.note-chip__name {
  font-weight: 600;
  color: var(--color-text);
}

.note-chip__hz {
  color: var(--color-text-muted);
  font-size: var(--fs-xs);
}

/* Visual Sections */
.visual-section {
  margin-bottom: var(--space-lg);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.panel-title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  color: var(--color-primary);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toggle-label {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.toggle-label input[type="checkbox"] {
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Piano Keyboard */
.piano-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-xs);
  overflow-x: auto;
}

.piano {
  display: flex;
  position: relative;
  height: 160px;
  min-width: 600px;
  user-select: none;
}

.piano-key {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 8px;
  transition: background 0.15s, box-shadow 0.15s;
  box-sizing: border-box;
}

.piano-key--white {
  background: #f0f0f0;
  width: 40px;
  height: 160px;
  z-index: 1;
  border-color: #bbb;
}

.piano-key--black {
  background: #222;
  width: 26px;
  height: 100px;
  margin-left: -13px;
  margin-right: -13px;
  z-index: 2;
  border-color: #000;
}

.piano-key--highlighted {
  background: rgba(0, 255, 65, 0.6) !important;
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.4);
}

.piano-key--root {
  background: rgba(255, 0, 200, 0.7) !important;
  box-shadow: 0 0 12px rgba(255, 0, 200, 0.5);
}

.piano-key--compare {
  background: rgba(0, 212, 255, 0.55) !important;
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.4);
}

.piano-key--shared {
  background: linear-gradient(135deg, rgba(0, 255, 65, 0.5), rgba(0, 212, 255, 0.5)) !important;
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.piano-key--playing {
  transform: scaleY(0.97);
  filter: brightness(1.3);
}

.piano-key__label {
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1;
  text-align: center;
  pointer-events: none;
}

.piano-key--white .piano-key__label {
  color: #333;
}

.piano-key--black .piano-key__label {
  color: #ccc;
}

.piano-key--highlighted .piano-key__label,
.piano-key--root .piano-key__label,
.piano-key--compare .piano-key__label,
.piano-key--shared .piano-key__label {
  color: #fff;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Guitar Fretboard */
.fretboard-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  overflow-x: auto;
}

#fretboard-canvas {
  display: block;
  width: 100%;
  max-width: 900px;
}

/* Staff Notation */
.staff-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  overflow-x: auto;
}

#staff-canvas {
  display: block;
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
}

/* Chords Grid */
.chords-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-sm);
}

.chord-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  text-align: center;
  transition: border-color 0.2s;
}

.chord-card:hover {
  border-color: var(--color-primary);
}

.chord-card__numeral {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.chord-card__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-secondary);
}

.chord-card__type {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.chord-card__notes {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Related Scales */
.related-scales-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Comparison Section */
.comparison-section .compare-controls {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.compare-legend {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.legend-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.legend-dot--primary {
  background: rgba(0, 255, 65, 0.7);
}

.legend-dot--cyan {
  background: rgba(0, 212, 255, 0.7);
}

.legend-dot--shared {
  background: linear-gradient(135deg, rgba(0, 255, 65, 0.5), rgba(0, 212, 255, 0.5));
}

.compare-notes {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* Steps Grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.step-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.step-card__number {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--space-sm);
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-primary);
}

.step-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  color: var(--color-secondary);
  margin: 0 0 var(--space-xs);
}

.step-card__text {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Tool Actions */
.tool-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}

.faq-item__question {
  padding: var(--space-md);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item__question::-webkit-details-marker {
  display: none;
}

.faq-item__question::after {
  content: '+';
  color: var(--color-primary);
  font-size: 1.2em;
  flex-shrink: 0;
  margin-left: var(--space-sm);
}

details[open] .faq-item__question::after {
  content: '\2212';
}

.faq-item__answer {
  padding: 0 var(--space-md) var(--space-md);
  color: var(--color-text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
}

/* Responsive */
@media (max-width: 768px) {
  .scale-controls {
    flex-direction: column;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .info-card--wide {
    grid-column: 1;
  }

  .related-scales-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr 1fr;
  }

  .playback-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .tempo-control {
    margin-left: 0;
    width: 100%;
  }

  .tempo-control .slider {
    flex: 1;
    width: auto;
  }

  .chords-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }

  .piano-key--white {
    width: 30px;
  }

  .piano-key--black {
    width: 20px;
    margin-left: -10px;
    margin-right: -10px;
  }

  .piano {
    height: 130px;
    min-width: 450px;
  }

  .piano-key--white {
    height: 130px;
  }

  .piano-key--black {
    height: 80px;
  }

  .comparison-section .compare-controls {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .card-grid {
    grid-template-columns: 1fr !important;
  }
}