/* Interactive Chord Player Styles with Site Design */
    .chord-player-container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 2rem;
    }

    /* Premium Banner */
    .premium-banner {
      background: var(--gradient-primary);
      padding: 12px 0;
      text-align: center;
      margin-bottom: 2rem;
      border-radius: var(--border-radius);
      box-shadow: var(--shadow-medium);
    }

    .premium-banner p {
      color: white;
      margin: 0;
      font-weight: 500;
    }

    .premium-button {
      background: rgba(255, 255, 255, 0.2);
      color: white;
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: var(--border-radius);
      padding: 8px 16px;
      margin-left: 16px;
      font-weight: 600;
      cursor: pointer;
      backdrop-filter: blur(10px);
      transition: var(--transition-fast);
    }

    .premium-button:hover {
      background: rgba(255, 255, 255, 0.3);
      transform: translateY(-2px);
    }

    /* Song Header */
    .song-header-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      padding: 2rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-medium);
      position: relative;
      overflow: hidden;
    }

    .song-header-content {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 2rem;
    }
    
    .song-info {
      flex: 1;
      min-width: 0;
    }

    .song-info h1 {
      font-size: clamp(1.8rem, 4vw, 2.5rem);
      font-weight: 800;
      background: var(--gradient-primary);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 0.5rem;
    }

    .artist-info {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-secondary);
    }

    .artist-badge {
      background: rgba(79, 195, 247, 0.2);
      color: var(--accent-blue);
      padding: 4px 12px;
      border-radius: 50px;
      font-size: 0.875rem;
      font-weight: 600;
      border: 1px solid rgba(79, 195, 247, 0.3);
    }
    
    .main-chords-display {
      margin-top: 12px;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      align-items: center;
    }
    
    .main-chords-display::before {
      content: "Main chords:";
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-right: 4px;
    }
    
    .main-chord-badge {
      background: rgba(79, 195, 247, 0.15);
      color: var(--accent-blue);
      padding: 4px 10px;
      border-radius: 6px;
      font-weight: 600;
      font-size: 0.9rem;
      border: 1px solid rgba(79, 195, 247, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    
    .chord-analysis.has-capo {
      background: rgba(239, 68, 68, 0.15);
      color: #EF4444;
      border: 1px solid rgba(239, 68, 68, 0.3);
      border-radius: 8px;
      padding: 12px;
    }
    
    .original-progression {
      font-size: 0.9em;
      opacity: 0.7;
      margin-left: 8px;
    }
    
    .main-chord-badge .original-chord {
      font-size: 0.8rem;
      opacity: 0.7;
      margin-left: 2px;
    }

    .header-actions {
      display: flex;
      gap: 8px;
      margin-top: 1rem;
      justify-content: flex-start !important; /* Position buttons on the left */
      align-items: flex-start;
      align-self: flex-start;
      width: auto;
      text-align: left;
    }

    .action-btn {
      width: 20px !important;  /* Force narrow width */
      height: 20px !important; /* Force narrow height */
      min-width: 20px !important; /* Prevent stretching */
      max-width: 20px !important; /* Prevent stretching */
      padding: 0 !important; /* Remove any padding */
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      color: var(--text-secondary);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition-fast);
      font-size: 0.8rem; /* Bigger icon size as requested */
      flex-shrink: 0; /* Prevent flex shrinking */
    }

    .action-btn:hover {
      background: var(--accent-blue);
      color: white;
      transform: translateY(-2px);
    }

    /* Media Player */
    .media-player-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      padding: 2rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-medium);
    }

    .player-controls {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 1.5rem;
    }
    
    .song-header-card .player-controls {
      margin-top: 2rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--border-color);
      margin-bottom: 0;
    }

    .play-pause-btn {
      width: 64px;
      height: 64px;
      background: var(--gradient-primary);
      border: none;
      border-radius: 50%;
      color: white;
      font-size: 1.5rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition-smooth);
      box-shadow: var(--shadow-medium);
    }

    .play-pause-btn:hover {
      transform: scale(1.05);
      box-shadow: var(--shadow-heavy);
    }

    .timeline-container {
      flex: 1;
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .time-display {
      font-size: 0.9rem;
      color: var(--text-secondary);
      min-width: 45px;
      font-family: 'JetBrains Mono', monospace;
    }

    .progress-track {
      flex: 1;
      position: relative;
      height: 8px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      cursor: pointer;
      overflow: hidden;
    }

    .progress-fill {
      height: 100%;
      background: var(--gradient-primary);
      border-radius: 4px;
      width: 0%;
      transition: width 0.1s ease;
    }

    .progress-thumb {
      position: absolute;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 16px;
      height: 16px;
      background: white;
      border: 2px solid var(--accent-blue);
      border-radius: 50%;
      cursor: pointer;
      left: 0%;
      box-shadow: var(--shadow-light);
    }

    /* YouTube Player */
    .youtube-player {
      width: 400px;
      height: 225px;
      border-radius: var(--border-radius);
      overflow: hidden;
      background: rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .youtube-player iframe {
      width: 100%;
      height: 100%;
      border: none;
    }

    /* Toolbar */
    .toolbar-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      padding: 1.5rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-medium);
    }

    .toolbar-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 1rem;
    }

    .toolbar-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      padding: 1rem;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      cursor: pointer;
      transition: var(--transition-fast);
      color: var(--text-secondary);
      position: relative;
    }

    .toolbar-item:hover {
      background: rgba(79, 195, 247, 0.1);
      border-color: var(--accent-blue);
      color: var(--accent-blue);
      transform: translateY(-2px);
    }

    .toolbar-item.active {
      background: rgba(79, 195, 247, 0.2);
      border-color: var(--accent-blue);
      color: var(--accent-blue);
    }

    .toolbar-label {
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .toolbar-value {
      font-size: 0.8rem;
      background: rgba(255, 255, 255, 0.1);
      padding: 2px 8px;
      border-radius: 12px;
      font-family: 'JetBrains Mono', monospace;
    }
    
    .tempo-controls {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .tempo-btn {
      width: 24px;
      height: 24px;
      background: rgba(79, 195, 247, 0.1);
      border: 1px solid rgba(79, 195, 247, 0.3);
      color: var(--accent-blue);
      cursor: pointer;
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
      font-size: 0.75rem;
    }
    
    .tempo-btn:hover {
      background: rgba(79, 195, 247, 0.2);
      border-color: var(--accent-blue);
      transform: scale(1.1);
    }
    
    .tempo-btn:active {
      transform: scale(0.95);
    }
    
    .tempo-bpm {
      font-size: 0.75rem;
      color: var(--text-secondary);
      margin-top: 4px;
    }

    /* Volume Popup */
    .volume-popup {
      position: absolute;
      top: -120px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 1rem;
      box-shadow: var(--shadow-heavy);
      opacity: 0;
      visibility: hidden;
      transition: var(--transition-fast);
      z-index: 1000;
      min-width: 120px;
    }

    .volume-popup.show {
      opacity: 1;
      visibility: visible;
      transform: translateX(-50%) translateY(-5px);
    }

    .volume-popup::after {
      content: '';
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 0;
      border-left: 8px solid transparent;
      border-right: 8px solid transparent;
      border-top: 8px solid var(--card-bg);
    }

    .volume-slider-container {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
    }

    .volume-slider {
      width: 80px;
      height: 4px;
      -webkit-appearance: none;
      appearance: none;
      background: rgba(255, 255, 255, 0.2);
      border-radius: 2px;
      outline: none;
      cursor: pointer;
    }

    .volume-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 16px;
      height: 16px;
      background: var(--gradient-primary);
      border-radius: 50%;
      cursor: pointer;
      box-shadow: var(--shadow-light);
    }

    .volume-slider::-moz-range-thumb {
      width: 16px;
      height: 16px;
      background: var(--gradient-primary);
      border-radius: 50%;
      cursor: pointer;
      border: none;
      box-shadow: var(--shadow-light);
    }

    .volume-percentage {
      font-size: 0.9rem;
      color: var(--text-primary);
      font-weight: 600;
      font-family: 'JetBrains Mono', monospace;
    }

    /* Voice Commands Toolbar Item */
    .voice-commands-toolbar-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
    }

    .voice-commands-switch {
      display: inline-block;
      position: relative;
      width: 44px;
      height: 24px;
      cursor: pointer;
    }

    .voice-commands-checkbox {
      opacity: 0;
      width: 0;
      height: 0;
      position: absolute;
    }

    .voice-commands-toggle {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      transition: var(--transition-fast);
    }

    .voice-commands-toggle:before {
      content: "";
      position: absolute;
      height: 18px;
      width: 18px;
      left: 2px;
      bottom: 2px;
      background: var(--text-secondary);
      border-radius: 50%;
      transition: var(--transition-fast);
    }

    .voice-commands-checkbox:checked + .voice-commands-toggle {
      background: var(--accent-blue);
      border-color: var(--accent-blue);
    }

    .voice-commands-checkbox:checked + .voice-commands-toggle:before {
      transform: translateX(20px);
      background: white;
    }

    .voice-commands-toolbar-item:hover .voice-commands-toggle {
      background: rgba(79, 195, 247, 0.2);
      border-color: var(--accent-blue);
    }

    .voice-commands-toolbar-item:hover .toolbar-label {
      color: var(--accent-blue);
    }

    /* Capo Popup */
    .capo-popup {
      position: absolute;
      top: -400px;
      left: 50%;
      transform: translateX(-50%) translateY(-10px);
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: 12px;
      padding: 24px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      opacity: 0;
      visibility: hidden;
      transition: var(--transition-fast);
      z-index: 1000;
      min-width: 320px;
      color: #333333;
    }
    .capo-popup.show {
      opacity: 1;
      visibility: visible;
      transform: translateX(-50%) translateY(-5px);
    }
    .capo-popup::after {
      content: '';
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 0;
      border-left: 8px solid transparent;
      border-right: 8px solid transparent;
      border-top: 8px solid #FFFFFF;
    }

    /* Popup Header */
    .popup-header {
      text-align: center;
      margin-bottom: 24px;
    }
    .popup-header h3 {
      font-size: 1.2rem;
      font-weight: 600;
      color: #333333;
      margin: 0;
    }

    /* Fret Selector */
    .fret-selector-container {
      position: relative;
      margin-bottom: 24px;
    }
    .no-capo-indicator {
      position: absolute;
      top: -25px;
      left: -10px;
      font-size: 1.2rem;
      font-weight: bold;
      color: #666666;
      cursor: pointer;
      padding: 4px;
      border-radius: 4px;
      transition: background-color 0.2s;
    }
    .no-capo-indicator:hover {
      background-color: #F3F4F6;
    }
    /* Capo Popup Fretboard - Professional Implementation */
    .capo-popup-fretboard {
      display: flex;
      align-items: center;
      gap: 8px;
      background-color: #fff;
      border: 1px solid #e5e7eb;
      border-radius: 12px;
      padding: 12px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      width: 100%;
      max-width: 500px;
    }

    /* The 'No Capo' (×) button */
    .no-capo-btn {
      background: none;
      border: none;
      font-size: 24px;
      font-weight: 300;
      color: #6b7280;
      cursor: pointer;
      padding: 0 8px;
      transition: color 0.2s;
    }
    .no-capo-btn:hover {
      color: #111827;
    }

    /* The main area containing the fretboard layers */
    .fretboard-area {
      position: relative;
      flex-grow: 1;
      height: 80px;
    }

    /* Layer 1: The Visual Grid */
    .fretboard-grid {
      position: absolute;
      inset: 0;
      background-image: repeating-linear-gradient(
        to bottom,
        transparent,
        transparent 14.6%,
        #d1d5db 14.6%,
        #d1d5db 15.6%
      );
      background-position: 0 5px;
    }

    /* The vertical fret lines - positioned with realistic guitar spacing */
    .fret-line {
      position: absolute;
      top: 0;
      bottom: 0;
      width: 1px;
      background-color: #d1d5db;
      left: var(--fret-position);
    }
    
    /* Realistic guitar fret spacing - scaled to fill the entire fretboard width */
    .fret-line:nth-child(1) { --fret-position: 11.18%; }   /* Fret 1 */
    .fret-line:nth-child(2) { --fret-position: 21.74%; }   /* Fret 2 */
    .fret-line:nth-child(3) { --fret-position: 31.78%; }   /* Fret 3 */
    .fret-line:nth-child(4) { --fret-position: 41.34%; }   /* Fret 4 */
    .fret-line:nth-child(5) { --fret-position: 50.32%; }   /* Fret 5 */
    .fret-line:nth-child(6) { --fret-position: 58.76%; }   /* Fret 6 */
    .fret-line:nth-child(7) { --fret-position: 66.68%; }   /* Fret 7 */
    .fret-line:nth-child(8) { --fret-position: 74.12%; }   /* Fret 8 */
    .fret-line:nth-child(9) { --fret-position: 81.10%; }   /* Fret 9 */
    .fret-line:nth-child(10) { --fret-position: 87.64%; }  /* Fret 10 */
    .fret-line:nth-child(11) { --fret-position: 93.78%; }  /* Fret 11 */
    .fret-line:nth-child(12) { --fret-position: 99.52%; }  /* Fret 12 */
    .fret-line:nth-child(13) { --fret-position: 100%; }    /* Right border */

    /* Layer 2: Absolutely Positioned Visuals */
    .fretboard-elements {
      position: absolute;
      inset: 0;
      pointer-events: none;
    }
    
    /* Allow pointer events only on the capo visualizer */
    .fretboard-elements .capo-visualizer {
      pointer-events: auto;
    }

    /* The blue capo indicator */
    .capo-visualizer {
      position: absolute;
      top: 5px;
      bottom: 5px;
      width: 8px;
      background-color: #3b82f6;
      border-radius: 4px;
      left: var(--capo-position, 0);
      opacity: var(--capo-opacity, 0);
      transition: left 0.3s ease, opacity 0.3s ease;
      cursor: grab;
      box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
      z-index: 10;
      border: 2px solid #1e40af;
      transform: translateX(-50%);
    }
    
    .capo-visualizer:hover {
      background-color: #2563eb;
      box-shadow: 0 4px 8px rgba(59, 130, 246, 0.5);
    }
    
    .capo-visualizer:active {
      cursor: grabbing;
    }
    
    .capo-visualizer.dragging {
      transition: none;
      cursor: grabbing;
    }

    /* The gray fret marker dots - positioned between realistic frets */
    .fret-marker {
      position: absolute;
      width: 8px;
      height: 8px;
      background-color: #9ca3af;
      border-radius: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
    }
    
    .fret-marker[style*="--fret: 3"] { left: 26.76%; }  /* Between fret 2 and 3 */
    .fret-marker[style*="--fret: 5"] { left: 45.83%; }  /* Between fret 4 and 5 */
    .fret-marker[style*="--fret: 7"] { left: 62.72%; }  /* Between fret 6 and 7 */
    .fret-marker[style*="--fret: 9"] { left: 77.61%; }  /* Between fret 8 and 9 */
    .fret-marker[style*="--fret: 12"] { left: 96.65%; } /* Between fret 11 and 12 */
    .fret-marker.double-dot-1 { top: 33%; }
    .fret-marker.double-dot-2 { top: 66%; }

    /* Layer 3: Invisible Clickable Zones */
    .fret-click-zones {
      position: absolute;
      inset: 0;
    }

    .fret-zone {
      position: absolute;
      top: 0;
      bottom: 0;
      cursor: pointer;
      border-radius: 4px;
      transition: background-color 0.2s;
    }
    .fret-zone:hover {
      background-color: rgba(59, 130, 246, 0.1);
    }

    /* Updated Chords Grid */
    .updated-chords-grid {
      display: flex;
      justify-content: space-around;
      gap: 16px;
      margin-top: 24px;
      flex-wrap: wrap;
    }
    .chord-diagram-mini {
      display: flex;
      flex-direction: column;
      align-items: center;
      min-width: 60px;
    }
    .chord-name-mini {
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 4px;
      color: #333333;
    }
    .fretboard-mini {
      width: 48px;
      height: 60px;
      border: 1px solid #D1D5DB;
      border-radius: 4px;
      background: #F9FAFB;
      position: relative;
      margin-bottom: 4px;
    }
    .string-indicators {
      display: flex;
      justify-content: space-between;
      width: 48px;
      font-size: 0.7rem;
      color: #666666;
    }

    /* Loop Popup */
    .loop-popup {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.8);
      backdrop-filter: blur(10px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 2000;
      opacity: 0;
      visibility: hidden;
      transition: var(--transition-fast);
    }
    .loop-popup.show {
      opacity: 1;
      visibility: visible;
    }
    .loop-popup-content {
      background: #FFFFFF;
      border: 1px solid #E5E7EB;
      border-radius: 16px;
      padding: 32px;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
      max-width: 90vw;
      max-height: 80vh;
      overflow-y: auto;
      color: #333333;
      position: relative;
    }
    .loop-popup-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid #E5E7EB;
    }
    .loop-popup-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: #333333;
      margin: 0;
    }
    .loop-close-btn {
      background: none;
      border: none;
      color: #666666;
      font-size: 1.5rem;
      cursor: pointer;
      padding: 4px;
      border-radius: 4px;
      transition: all 0.2s;
    }
    .loop-close-btn:hover {
      background: #F3F4F6;
      color: #333333;
    }
    .loop-instructions {
      background: #F0F9FF;
      border: 1px solid #BAE6FD;
      border-radius: 8px;
      padding: 16px;
      margin-bottom: 24px;
      color: #0369A1;
      font-size: 0.9rem;
    }
    .chord-chart-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 16px;
      margin-bottom: 24px;
      max-height: 400px;
      overflow-y: auto;
    }
    
    .chord-chart-grid:has(.beat-style) {
      grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      gap: 8px;
    }
    .chord-chart-item {
      background: #F9FAFB;
      border: 2px solid #E5E7EB;
      border-radius: 12px;
      padding: 16px;
      text-align: center;
      cursor: pointer;
      transition: all 0.2s;
      position: relative;
      user-select: none;
    }
    
    .chord-chart-item.beat-style {
      min-height: 60px;
      padding: 8px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }
    
    .chord-chart-item.beat-style.empty-beat {
      background: #F1F5F9;
      border-color: #CBD5E1;
      opacity: 0.6;
    }
    
    .chord-chart-item.beat-style.chord-labeled {
      background: #EFF6FF;
      border-color: #3B82F6;
    }
    
    .chord-chart-item.beat-style .chord-chart-time.small {
      font-size: 0.7rem;
      opacity: 0.7;
    }
    .chord-chart-item:hover {
      background: #F3F4F6;
      border-color: #3B82F6;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
    }
    .chord-chart-item.selected {
      background: #3B82F6;
      color: white;
      border-color: #2563EB;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    }
    .chord-chart-item.start-selected {
      background: #10B981;
      color: white;
      border-color: #059669;
    }
    .chord-chart-item.end-selected {
      background: #F59E0B;
      color: white;
      border-color: #D97706;
    }
    .chord-chart-name {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .chord-chart-time {
      font-size: 0.8rem;
      opacity: 0.8;
      font-family: 'JetBrains Mono', monospace;
    }
    .chord-chart-number {
      position: absolute;
      top: -8px;
      right: -8px;
      background: #3B82F6;
      color: white;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      font-weight: 600;
    }
    .loop-status {
      background: #10B981;
      color: white;
      padding: 12px 16px;
      border-radius: 8px;
      text-align: center;
      font-weight: 600;
      margin-top: 16px;
    }
    .loop-indicator {
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid #10B981;
      color: #065F46;
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-left: 8px;
    }

    /* Chord Progression */
    .chord-progression-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      padding: 2rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-medium);
      position: relative;
    }
    
    .progression-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.5rem;
      flex-wrap: wrap;
      gap: 1rem;
    }
    
    .progression-tabs {
      display: flex;
      gap: 4px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: var(--border-radius);
      padding: 4px;
      border: 1px solid var(--border-color);
      margin-bottom: 1rem;
    }
    
    .progression-tab {
      padding: 8px 16px;
      border: none;
      background: none;
      color: var(--text-secondary);
      cursor: pointer;
      border-radius: calc(var(--border-radius) - 4px);
      font-weight: 500;
      transition: var(--transition-fast);
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 0.875rem;
    }
    
    .progression-tab:hover {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-primary);
    }
    
    .progression-tab.active {
      background: var(--gradient-primary);
      color: white;
      box-shadow: var(--shadow-light);
    }
    
    .progression-tab i {
      font-size: 0.875rem;
    }
    
    /* Simple Mode Styles */
    .simple-chord-display {
      padding: 2rem 0;
    }
    
    .simple-chord-labels {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      align-items: center;
    }
    
    .simple-label-row {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 1rem;
    }
    
    .simple-chord-label {
      padding: 1rem 1.5rem;
      border-radius: 12px;
      font-weight: 700;
      text-align: center;
      min-width: 80px;
      transition: all 0.3s ease;
      font-family: 'JetBrains Mono', monospace;
    }
    
    .simple-chord-label.center-label {
      background: var(--gradient-primary);
      color: white;
      font-size: 1.5rem;
      min-width: 120px;
      box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    }
    
    .simple-chord-label.side-label {
      background: rgba(255, 255, 255, 0.1);
      color: var(--text-secondary);
      font-size: 1.2rem;
      border: 1px solid var(--border-color);
    }
    
    #beatnr {
      background: linear-gradient(135deg, #ff6b6b 0%, #ff8787 100%);
      font-size: 1.3rem;
      min-width: 100px;
    }
    
    /* Simple View II - Glowy Display Styles */
    .harmonic-flow-canvas {
      background: radial-gradient(circle at center, rgba(79, 195, 247, 0.08) 0%, transparent 60%);
      border-radius: 20px;
      padding: 3rem 2rem;
      position: relative;
      overflow: hidden;
      margin: 2rem 0;
    }
    
    .timeline-flow {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 4rem;
      position: relative;
    }
    
    .chord-particle {
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
      transition: all 0.6s ease;
    }
    
    .chord-particle.past {
      opacity: 0.7;
      transform: scale(0.9);
    }
    
    .chord-particle.current {
      transform: scale(1);
    }
    
    .chord-particle.future {
      opacity: 0.7;
      transform: scale(0.9);
    }
    
    .particle-glow {
      width: 100px;
      height: 100px;
      border-radius: 50%;
      position: relative;
      margin-bottom: 1rem;
      transition: all 0.6s ease;
    }
    
    .past .particle-glow {
      background: radial-gradient(circle, rgba(96, 125, 139, 0.4) 0%, rgba(96, 125, 139, 0.1) 70%, transparent 100%);
      box-shadow: 0 0 20px rgba(96, 125, 139, 0.3);
    }
    
    .current .particle-glow {
      background: radial-gradient(circle, rgba(79, 195, 247, 0.8) 0%, rgba(79, 195, 247, 0.3) 70%, transparent 100%);
      box-shadow: 0 0 40px rgba(79, 195, 247, 0.6), 0 0 80px rgba(79, 195, 247, 0.3);
      animation: pulse-glow 2s ease-in-out infinite alternate;
    }
    
    .future .particle-glow {
      background: radial-gradient(circle, rgba(156, 39, 176, 0.5) 0%, rgba(156, 39, 176, 0.2) 70%, transparent 100%);
      box-shadow: 0 0 25px rgba(156, 39, 176, 0.4);
    }
    
    @keyframes pulse-glow {
      0% { 
        box-shadow: 0 0 40px rgba(79, 195, 247, 0.6), 0 0 80px rgba(79, 195, 247, 0.3);
        transform: scale(1);
      }
      100% { 
        box-shadow: 0 0 60px rgba(79, 195, 247, 0.8), 0 0 120px rgba(79, 195, 247, 0.4);
        transform: scale(1.05);
      }
    }
    
    .chord-name {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-primary);
      text-align: center;
      margin-bottom: 0.5rem;
      font-family: 'JetBrains Mono', monospace;
    }
    
    .chord-info {
      text-align: center;
      opacity: 0.9;
    }
    
    .chord-type {
      font-size: 0.8rem;
      color: var(--text-accent);
      font-weight: 600;
      margin-bottom: 0.25rem;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    
    .chord-beats {
      font-size: 0.9rem;
      color: var(--text-secondary);
      font-weight: 500;
    }
    
    .chord-bar {
      font-size: 0.8rem;
      color: var(--text-accent);
      font-style: italic;
      margin-top: 0.25rem;
    }
    
    .flow-line {
      position: absolute;
      height: 2px;
      background: linear-gradient(90deg, transparent 0%, rgba(79, 195, 247, 0.5) 50%, transparent 100%);
      top: 50%;
      transform: translateY(-50%);
      opacity: 0.6;
    }
    
    .line-1 {
      left: 25%;
      width: 20%;
    }
    
    .line-2 {
      right: 25%;
      width: 20%;
    }
    
    .ripple-effect {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 120px;
      height: 120px;
      border: 2px solid rgba(79, 195, 247, 0.3);
      border-radius: 50%;
      transform: translate(-50%, -50%);
      animation: ripple 3s linear infinite;
    }
    
    @keyframes ripple {
      0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
      }
      100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
      }
    }
    
    /* Debug Table Styles */
    #debugChordTable td {
      padding: 8px 12px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      text-align: center;
      color: var(--text-secondary);
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.9rem;
      transition: all 0.2s ease;
    }
    
    #debugChordRow td {
      background: rgba(255, 255, 255, 0.05);
      font-weight: 600;
    }
    
    #debugBeatRow td {
      background: rgba(255, 255, 255, 0.03);
      font-size: 0.8rem;
    }
    
    #debugChordTable td.active,
    #debugChordRow td.active,
    #debugBeatRow td.active {
      background: var(--accent-blue) !important;
      color: white !important;
      font-weight: 700 !important;
      transform: scale(1.05) !important;
      box-shadow: 0 0 15px rgba(33, 150, 243, 0.6) !important;
      border: 2px solid rgba(33, 150, 243, 0.8) !important;
      animation: pulseActive 2s infinite !important;
      position: relative;
      z-index: 10;
    }
    
    @keyframes pulseActive {
      0%, 100% { box-shadow: 0 0 15px rgba(33, 150, 243, 0.6); }
      50% { box-shadow: 0 0 25px rgba(33, 150, 243, 0.9); }
    }
    
    /* Make chord names in debug table clickable */
    #debugChordRow td {
      cursor: pointer;
      transition: all 0.2s ease;
      position: relative;
    }
    
    #debugChordRow td:hover {
      background: rgba(33, 150, 243, 0.3) !important;
      color: white !important;
      transform: scale(1.02);
      box-shadow: 0 0 10px rgba(33, 150, 243, 0.4);
    }
    
    #debugChordRow td:hover::after {
      content: 'Click to jump';
      position: absolute;
      bottom: -25px;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(0, 0, 0, 0.8);
      color: white;
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 0.7rem;
      white-space: nowrap;
      z-index: 1000;
      pointer-events: none;
    }
    
    /* Grid Mode Styles */
    .grid-controls {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 1rem;
      padding: 12px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }
    
    .grid-control-label {
      color: var(--text-secondary);
      font-size: 0.875rem;
      font-weight: 500;
    }
    
    .grid-column-btn {
      width: 32px;
      height: 32px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid var(--border-color);
      color: var(--text-secondary);
      cursor: pointer;
      border-radius: 6px;
      font-weight: 600;
      transition: all 0.2s ease;
    }
    
    .grid-column-btn:hover {
      background: rgba(79, 195, 247, 0.2);
      border-color: var(--accent-blue);
      color: var(--accent-blue);
    }
    
    .grid-column-btn.active {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
    }
    
    /* Keep grid look identical; only constrain its container height for scrolling */
    #gridMode { display: flex; flex-direction: column; }
    .chord-grid {
      display: grid;
      gap: clamp(10px, 1vw, 16px); /* Maintain comfortable spacing across widths */
      padding: 8px;
      max-height: 420px; /* Let grid expand naturally up to this, then scroll */
      overflow-y: auto;
      overflow-x: hidden;
      background: rgba(255, 255, 255, 0.05);
      border-radius: var(--border-radius);
      border: 1px solid var(--border-color);
    }
    
    .chord-grid[data-columns="4"] {
      grid-template-columns: repeat(4, 1fr);
    }
    
    .chord-grid[data-columns="8"] {
      grid-template-columns: repeat(8, 1fr);
    }
    
    .chord-grid[data-columns="12"] {
      grid-template-columns: repeat(12, 1fr);
    }
    
    .chord-grid[data-columns="16"] {
      grid-template-columns: repeat(16, 1fr);
    }
    /* Scale label size with column count for readability */
    .chord-grid[data-columns="16"] .grid-beat-block { font-size: 0.8rem; }
    .chord-grid[data-columns="12"] .grid-beat-block { font-size: 1rem; }
    .chord-grid[data-columns="8"] .grid-beat-block { font-size: 1.4rem; }
    .chord-grid[data-columns="4"] .grid-beat-block { font-size: 1.7rem; }
    
    .grid-beat-block {
      width: 100%;
      aspect-ratio: 1 / 1; /* Scale with columns to fill available width */
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      cursor: pointer;
      transition: all 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem; /* Base size; overridden per column count above */
      font-weight: 600;
      color: transparent;
      position: relative;
      box-sizing: border-box;
      overflow: hidden; /* Prevent label overflow at small sizes */
      white-space: nowrap;
      text-overflow: ellipsis;
    }
    
    .grid-beat-block:hover {
      background: rgba(79, 195, 247, 0.2);
      border-color: var(--accent-blue);
      transform: scale(1.05);
    }
    
    .grid-beat-block.chord-labeled {
      color: var(--text-primary);
      background: rgba(79, 195, 247, 0.15);
      border-color: var(--accent-blue);
      font-weight: 700;
    }
    
    .grid-beat-block.active {
      background: var(--accent-blue);
      color: white;
      box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.3);
      transform: scale(1.1);
      z-index: 2;
    }
    
    .grid-beat-block.empty-beat {
      background: rgba(255, 255, 255, 0.03);
      border-color: rgba(255, 255, 255, 0.1);
      opacity: 0.5;
    }

    .chord-timeline {
      display: flex;
      background: rgba(255, 255, 255, 0.05);
      border-radius: var(--border-radius);
      overflow-x: auto;
      overflow-y: hidden;
      border: 1px solid var(--border-color);
      padding: 8px;
      gap: 2px;
      align-items: center;
      min-height: 60px;
    }
    
    /* Revolutionary Beat-based Progression Styles */
    .beat-block {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      cursor: pointer;
      transition: all 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 600;
      color: transparent;
      position: relative;
    }
    
    .beat-block:hover {
      background: rgba(79, 195, 247, 0.2);
      border-color: var(--accent-blue);
      transform: scale(1.1);
    }
    
    .beat-block.empty-beat {
      background: rgba(255, 255, 255, 0.03);
      border-color: rgba(255, 255, 255, 0.1);
      opacity: 0.5;
    }
    
    .beat-block.empty-beat:hover {
      background: rgba(255, 255, 255, 0.08);
      transform: scale(1.05);
    }
    
    .beat-block.chord-labeled {
      color: var(--text-primary);
      background: rgba(79, 195, 247, 0.15);
      border-color: var(--accent-blue);
      font-weight: 700;
      min-width: 40px;
      width: auto;
      padding: 0 8px;
    }
    
    .beat-block.active {
      background: var(--accent-blue);
      color: white;
      box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.3);
      transform: scale(1.15);
      z-index: 2;
    }
    
    .beat-block.active.chord-labeled {
      background: var(--accent-blue);
      border-color: var(--primary-bg);
      font-weight: 800;
    }
    
    /* Smooth scrolling for long progressions */
    .chord-timeline::-webkit-scrollbar {
      height: 6px;
    }
    
    .chord-timeline::-webkit-scrollbar-track {
      background: rgba(255, 255, 255, 0.1);
      border-radius: 3px;
    }
    
    .chord-timeline::-webkit-scrollbar-thumb {
      background: var(--accent-blue);
      border-radius: 3px;
    }

    .chord-block {
      flex-grow: 1;
      padding: 20px 16px;
      text-align: center;
      font-weight: 700;
      font-size: 1.2rem;
      border-right: 1px solid var(--border-color);
      cursor: pointer;
      transition: var(--transition-fast);
      color: var(--text-primary);
      position: relative;
    }

    .chord-block:last-child {
      border-right: none;
    }

    .chord-block:hover {
      background: rgba(79, 195, 247, 0.1);
      transform: translateY(-2px);
    }

    .chord-block.active {
      background: var(--gradient-primary);
      color: white;
      box-shadow: var(--shadow-medium);
    }

    .chord-progress-indicator {
      position: absolute;
      bottom: 0;
      left: 0;
      height: 4px;
      background: var(--gradient-primary);
      transition: width 0.1s ease;
      border-radius: 0 0 var(--border-radius) var(--border-radius);
    }

    /* Content Tabs */
    .content-tabs-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      padding: 2rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-medium);
    }

    .tabs-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .tab-buttons {
      display: flex;
      gap: 24px;
    }

    .tab-btn {
      padding: 12px 0;
      border: none;
      background: none;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-secondary);
      cursor: pointer;
      border-bottom: 3px solid transparent;
      transition: var(--transition-fast);
    }

    .tab-btn.active {
      color: var(--accent-blue);
      border-bottom-color: var(--accent-blue);
    }

    .instrument-selector {
      display: flex;
      background: rgba(255, 255, 255, 0.05);
      border-radius: var(--border-radius);
      padding: 4px;
      border: 1px solid var(--border-color);
    }

    .instrument-btn {
      padding: 8px 16px;
      border: none;
      background: none;
      color: var(--text-secondary);
      cursor: pointer;
      border-radius: calc(var(--border-radius) - 4px);
      font-weight: 500;
      transition: var(--transition-fast);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .instrument-btn.active {
      background: var(--gradient-primary);
      color: white;
      box-shadow: var(--shadow-light);
    }

    /* Chord Diagrams */
    .chord-diagrams-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
      gap: 2rem;
      margin-top: 2rem;
    }
    
    .chord-diagram-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 0.5rem;
      background: transparent;
      border: none;
      transition: var(--transition-fast);
    }
    
    .chord-diagram-item:hover {
      transform: translateY(-2px);
    }
    
    .chord-diagram svg {
      color: var(--text-primary);
      max-width: 100%;
      height: auto;
    }
    
    .chord-diagram-error {
      opacity: 0.6;
    }
    
    .diagram-placeholder {
      padding: 2rem;
      text-align: center;
      color: var(--text-secondary);
      font-style: italic;
    }
    
    .loading-diagrams {
      grid-column: 1 / -1;
      text-align: center;
      padding: 2rem;
      color: var(--text-secondary);
    }

    .chord-diagram {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 1.5rem;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      transition: var(--transition-fast);
    }

    .chord-diagram:hover {
      background: rgba(79, 195, 247, 0.1);
      border-color: var(--accent-blue);
      transform: translateY(-2px);
    }

    .chord-name {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-primary);
    }

    .fretboard {
      position: relative;
      width: 80px;
      height: 100px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
    }

    .fret-number {
      position: absolute;
      top: -8px;
      left: -16px;
      font-size: 0.75rem;
      color: var(--text-secondary);
      font-weight: 600;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .chord-player-container {
        padding: 1rem;
      }

      .song-header-content {
        flex-direction: column;
        align-items: flex-start;
      }
      
      .youtube-player {
        width: 100%;
        height: 200px;
        order: -1;
        margin-bottom: 1rem;
      }
      
      .song-header-card .player-controls {
        flex-direction: column;
        gap: 15px;
        margin-top: 1.5rem;
        padding-top: 1rem;
      }
      
      .timeline-container {
        width: 100%;
        order: 2;
      }

      .tabs-header {
        flex-direction: column;
        align-items: stretch;
      }

      .tab-buttons {
        justify-content: center;
      }

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

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

    }

    /* Hidden elements for audio player integration */
    .hidden-audio-elements {
      display: none;
    }
    
    /* See Also Section */
    .see-also-section {
      margin-top: 3rem;
      padding: 2rem 0;
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      box-shadow: var(--shadow-medium);
    }
    
    .see-also-header {
      text-align: center;
      margin-bottom: 2rem;
    }
    
    .see-also-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      padding: 0 2rem;
      max-width: 1200px;
      margin: 0 auto;
    }
    
    @media (max-width: 768px) {
      .see-also-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }
    }
    
    @media (max-width: 1200px) and (min-width: 769px) {
      .see-also-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    
    .see-also-card {
      background: var(--card-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius-large);
      overflow: hidden;
      transition: var(--transition-smooth);
      box-shadow: var(--shadow-medium);
    }
    
    .see-also-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-heavy);
      border-color: var(--accent-blue);
    }
    
    .see-also-card .main-link {
      display: block;
      text-decoration: none;
      color: inherit;
    }
    
    .see-also-loading {
      display: none;
    }

/* ===================================
   Vocal Remover Mixer Styles
   =================================== */

.mixer-section-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-large);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}

.mixer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border-color);
}

.mixer-toggle-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.mixer-toggle-btn:hover {
  color: var(--accent-blue);
}

.mixer-toggle-btn i {
  transition: transform 0.3s ease;
}

.mixer-controls-header {
  display: none;
  align-items: center;
  gap: 1rem;
}

.mixer-stems-select {
  background: #2a2a2a !important;
  border: 1px solid var(--border-color);
  color: #ffffff !important;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mixer-stems-select:hover {
  border-color: var(--accent-blue);
}

.mixer-stems-select option {
  background: #2a2a2a !important;
  color: #ffffff !important;
  padding: 0.5rem;
}

.mixer-stems-select option:hover {
  background: #3a3a3a !important;
}

.mixer-process-btn {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.mixer-process-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.mixer-process-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.mixer-content {
  padding: 2rem;
}

.mixer-loading {
  text-align: center;
  padding: 3rem;
}

.mixer-loading .loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.mixer-loading .loading-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.mixer-tracks-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.track-row {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  display: grid;
  grid-template-columns: 100px 100px 1fr 50px;
  gap: 1rem;
  align-items: center;
}

.track-name {
  font-weight: 600;
  color: var(--text-primary);
}

.track-controls {
  display: flex;
  gap: 0.5rem;
}

.track-controls button {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition-fast);
}

.track-controls button:hover {
  background: rgba(79, 195, 247, 0.1);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.track-controls button.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
}

.volume-slider {
  width: 100%;
  height: 4px;
  background: var(--border-color);
  outline: none;
  border-radius: 2px;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--accent-blue);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition-fast);
}

.volume-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--accent-blue);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition-fast);
}

.volume-slider::-moz-range-thumb:hover {
  transform: scale(1.2);
}

.download-btn {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.download-btn:hover {
  background: rgba(156, 39, 176, 0.1);
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.slider-waveform-area {
  grid-column: 1 / -1;
  position: relative;
  height: 50px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.waveform-container {
  width: 100%;
  height: 50px;
}

.live-waveform-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px;
  z-index: 10;
  display: none;
}

.mixer-playback-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.mixer-playback-controls button {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.mixer-playback-controls button:hover {
  background: rgba(79, 195, 247, 0.1);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: scale(1.1);
}

.mixer-play-pause-btn {
  background: var(--gradient-primary) !important;
  color: white !important;
  border: none !important;
}

.mixer-play-pause-btn:hover {
  transform: scale(1.1) !important;
}

.mixer-progress-bar {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mixer-progress-bar .progress-bar {
  flex: 1;
  height: 6px;
  background: var(--border-color);
  outline: none;
  border-radius: 3px;
  cursor: pointer;
}

.mixer-progress-bar .progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent-blue);
  border-radius: 50%;
  cursor: pointer;
}

.mixer-progress-bar .progress-bar::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--accent-blue);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.mixer-progress-bar .progress-time {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 50px;
  text-align: right;
}

/* Responsive styles */
@media (max-width: 768px) {
  .mixer-header {
    flex-direction: column;
    gap: 1rem;
  }

  .mixer-controls-header {
    width: 100%;
    justify-content: space-between;
  }

  .track-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .slider-waveform-area {
    grid-column: 1;
  }

  .mixer-playback-controls {
    flex-wrap: wrap;
  }
}