/* Minimal High-Contrast Theme */
:root {
  /* Monochrome Base */
  --bg-primary: #000000;
  --bg-secondary: #111111;
  --bg-tertiary: #222222;
  --bg-panel: #0a0a0a;
  --bg-input: #1a1a1a;
  
  /* High Contrast Text */
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #999999;
  --text-dim: #666666;
  
  /* Brand Accent Colors */
  --accent-primary: #ff6b35;
  --accent-active: #ff0000;
  --accent-hover: #333333;
  --accent-border: #444444;
  
  /* Display Colors */
  --display-text: #ffffff;
  --display-bg: #000000;
  --display-border: #333333;
  
  /* Component Sizes */
  --knob-size-small: 40px;
  --knob-size-medium: 60px;
  --knob-size-large: 80px;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Borders and Shadows */
  --border-radius: 4px;
  --border-radius-large: 8px;
  --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-large: 0 8px 16px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 0.1s ease;
  --transition-medium: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* Minimal Knob Control */
.knob-control {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  user-select: none;
}

.knob-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.knob-handle {
  position: relative;
  background: var(--bg-secondary);
  border: 2px solid var(--accent-border);
  border-radius: 50%;
  cursor: grab;
  transition: all var(--transition-fast);
}

.knob-handle:hover {
  border-color: var(--accent-primary);
}

.knob-control.dragging .knob-handle {
  cursor: grabbing;
  border-color: var(--accent-active);
}

.knob-indicator {
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 25%;
  background: var(--text-primary);
}

.knob-value {
  background: var(--display-bg);
  color: var(--display-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--display-border);
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: normal;
  text-align: center;
  min-width: 50px;
}

.knob-label {
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
}

/* Simple Display Component */
.led-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.led-screen {
  background: var(--display-bg);
  border: 1px solid var(--display-border);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: 'Courier New', monospace;
  color: var(--display-text);
}

.led-text {
  font-weight: normal;
  letter-spacing: 1px;
}

.led-label {
  color: var(--text-muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Beat Indicator Component */
.beat-indicator {
  user-select: none;
}

/* Circular Beat Indicator */
.beat-indicator--circular .beat-circle {
  position: relative;
  width: 120px;
  height: 120px;
  border: 2px solid var(--bg-tertiary);
  border-radius: 50%;
  background: var(--bg-secondary);
  box-shadow: inset var(--shadow-small);
}

.beat-indicator--circular .beat {
  position: absolute;
  width: 20px;
  height: 20px;
  transform-origin: 60px 60px;
}

.beat-indicator--circular .beat-0 { transform: rotate(0deg) translateY(-50px); }
.beat-indicator--circular .beat-1 { transform: rotate(90deg) translateY(-50px); }
.beat-indicator--circular .beat-2 { transform: rotate(180deg) translateY(-50px); }
.beat-indicator--circular .beat-3 { transform: rotate(270deg) translateY(-50px); }

.beat-indicator--circular .beat-main {
  width: 16px;
  height: 16px;
  background: var(--bg-tertiary);
  border: 2px solid var(--bg-primary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.beat-indicator--circular .beat.active .beat-main {
  background: var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-primary);
  transform: scale(1.2);
}

/* Bar Beat Indicator */
.beat-indicator--bar .beat-bar {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid var(--bg-tertiary);
}

.beat-indicator--bar .beat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.beat-indicator--bar .beat-main {
  width: 24px;
  height: 32px;
  background: var(--bg-tertiary);
  border: 1px solid var(--bg-primary);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.beat-indicator--bar .beat.active .beat-main {
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
}

.beat-indicator--bar .subdivisions {
  display: flex;
  gap: 2px;
}

.beat-indicator--bar .subdivision {
  width: 4px;
  height: 8px;
  background: var(--bg-primary);
  border-radius: 1px;
  transition: background var(--transition-fast);
}

.beat-indicator--bar .subdivision.active-subdivision {
  background: var(--accent-secondary);
}

/* LED Beat Indicator */
.beat-indicator--led .led-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid var(--bg-tertiary);
}

.beat-indicator--led .current-beat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.beat-indicator--led .beat-number {
  font-family: 'Courier New', monospace;
  font-size: 24px;
  font-weight: bold;
  color: var(--led-green);
  text-shadow: 0 0 8px var(--led-green);
  background: var(--led-green-dim);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  min-width: 40px;
  text-align: center;
}

.beat-indicator--led .beat-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.beat-indicator--led .beat-dots {
  display: flex;
  gap: var(--spacing-xs);
}

.beat-indicator--led .beat-dot {
  width: 12px;
  height: 12px;
  background: var(--led-green-dim);
  border: 1px solid var(--bg-primary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.beat-indicator--led .beat-dot.active {
  background: var(--led-green);
  box-shadow: 0 0 8px var(--led-green);
}

/* Size Modifiers */
.beat-indicator--small { transform: scale(0.8); }
.beat-indicator--large { transform: scale(1.2); }

/* Flash Animation */
.beat-indicator.flash {
  animation: flash 0.1s ease-in-out;
}

@keyframes flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Polyrhythm Track Component */
.polyrhythm-track {
  background: var(--bg-secondary, #111111);
  border: 1px solid var(--accent-border, #444444);
  border-radius: var(--border-radius, 4px);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-small, 0 2px 4px rgba(0, 0, 0, 0.3));
}

.track-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm, 8px) var(--spacing-md, 16px);
  background: var(--bg-tertiary, #222222);
  border-radius: var(--border-radius, 4px) var(--border-radius, 4px) 0 0;
  border-bottom: 1px solid var(--accent-border, #444444);
}

.track-controls {
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
}

.track-controls button {
  width: 24px;
  height: 24px;
  font-size: 10px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius, 4px);
  transition: all var(--transition-fast, 0.1s);
}

.track-mute.active {
  background: var(--accent-active);
  box-shadow: 0 0 6px var(--accent-active);
}

.track-solo.active {
  background: #ffaa00;
  box-shadow: 0 0 6px #ffaa00;
}

.track-remove {
  background: var(--bg-tertiary);
  border-color: var(--accent-border);
}

.track-remove:hover {
  background: var(--accent-active);
  box-shadow: 0 0 6px var(--accent-active);
}

.track-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.track-body {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md, 16px);
  background: var(--bg-secondary, #111111);
  border-radius: 0 0 var(--border-radius, 4px) var(--border-radius, 4px);
}

@media (max-width: 768px) {
  .track-body {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
  }
  
  .track-visualizer {
    order: 3;
    justify-content: center;
  }
  
  .track-pattern, .track-volume {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.track-pattern, .track-subdivision, .track-volume {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.track-pattern label, .track-subdivision label, .track-volume label {
  font-size: 9px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.track-pattern select, .track-subdivision select {
  width: 50px;
  padding: 2px 4px;
  font-size: 12px;
}

.track-volume {
  flex: 1;
  flex-direction: row;
  gap: var(--spacing-xs);
}

.volume-slider {
  flex: 1;
  height: 20px;
}

.volume-value {
  font-size: 10px;
  color: var(--text-muted);
  min-width: 25px;
  text-align: right;
}

.track-visualizer {
  flex: 2;
  display: flex;
  align-items: center;
}

.beat-dots {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.beat-dot {
  width: 16px;
  height: 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--accent-border);
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.beat-dot:hover {
  border-color: var(--accent-primary);
}

.beat-dot.muted {
  background: #666666;
  border-color: #666666;
  opacity: 0.5;
}

.beat-dot.muted.active {
  border-color: #666666;
  background: #666666;
  box-shadow: 0 0 4px #666666;
}

.beat-dot.downbeat {
  background: var(--text-primary);
}

.beat-dot.strong {
  background: var(--text-muted);
}

.beat-dot.active {
  background: var(--accent-active);
  box-shadow: 0 0 4px var(--accent-active);
}

/* Add Track Button */
.add-track-button {
  background: var(--accent-primary, #ff6b35);
  border: 2px solid var(--accent-primary, #ff6b35);
  color: var(--text-primary, #ffffff);
  padding: 4px 6px;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2px;
  border-radius: var(--border-radius, 4px);
  transition: all var(--transition-medium, 0.2s);
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.2);
  white-space: nowrap;
  height: 28px;
  flex-shrink: 0;
}

.add-track-button:hover {
  background: var(--accent-secondary, #00ff88);
  border-color: var(--accent-secondary, #00ff88);
  box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
  transform: translateY(-1px);
}

/* Reference Track Section */
.reference-section {
  background: var(--bg-panel, #252525);
  border: 2px solid var(--accent-border, #444444);
  border-radius: var(--border-radius-large, 8px);
  box-shadow: var(--shadow-medium, 0 4px 8px rgba(0, 0, 0, 0.4));
  margin: var(--spacing-md, 16px);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md, 16px);
  background: var(--bg-secondary, #111111);
  border-radius: var(--border-radius, 4px);
  border: 1px solid var(--accent-border, #444444);
  margin: var(--spacing-sm, 8px);
}

.reference-info {
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
}

.reference-track-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  flex-shrink: 0;
}

.reference-track-display .track-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.reference-track-display .track-label {
  font-size: 14px;
  font-weight: bold;
  color: var(--text-primary);
}

.reference-track-display .track-tempo {
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
}

.reference-dots .beat-dot, .polyrhythm-dots .beat-dot {
  border: 2px solid var(--accent-primary);
}

.reference-dots .beat-dot.active, .polyrhythm-dots .beat-dot.active {
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
}

.reference-dots .beat-dot.muted.active, .polyrhythm-dots .beat-dot.muted.active {
  background: #666666;
  border-color: #666666;
  box-shadow: 0 0 4px #666666;
}

.reference-dots .beat-dot.downbeat, .polyrhythm-dots .beat-dot.downbeat {
  background: var(--accent-primary);
  opacity: 0.7;
}

.reference-dots .beat-dot.downbeat.active, .polyrhythm-dots .beat-dot.downbeat.active {
  opacity: 1;
  box-shadow: 0 0 12px var(--accent-primary);
}