/**
 * Background Music Controls
 * Floating music control button with modern design
 */

/* Main music control button */
.music-control {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent), rgba(100, 255, 218, 0.8));
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(100, 255, 218, 0.3);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.music-control:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(100, 255, 218, 0.5);
}

.music-control:active {
    transform: scale(0.95);
}

/* Music control icon */
.music-control-icon {
    width: 24px;
    height: 24px;
    fill: var(--bg-dark);
    transition: all 0.3s ease;
}

/* Music control states */
.music-control.playing .play-icon {
    display: none;
}

.music-control.playing .pause-icon {
    display: block;
}

.music-control.paused .play-icon {
    display: block;
}

.music-control.paused .pause-icon {
    display: none;
}

.music-control.muted {
    opacity: 0.6;
    background: linear-gradient(135deg, #6b7280, rgba(107, 114, 128, 0.8));
}

/* Volume control panel */
.volume-control {
    position: fixed;
    bottom: 5rem;
    right: 2rem;
    background: rgba(17, 34, 64, 0.95);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 1rem;
    padding: 1rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    min-width: 200px;
}

.volume-control.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.volume-control h4 {
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 0 0.75rem 0;
    text-align: center;
}

/* Volume slider */
.volume-slider {
    width: 100%;
    height: 4px;
    background: rgba(100, 255, 218, 0.2);
    border-radius: 2px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    margin-bottom: 0.75rem;
}

.volume-slider::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(100, 255, 218, 0.4);
    transition: all 0.2s ease;
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 8px rgba(100, 255, 218, 0.6);
}

.volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(100, 255, 218, 0.4);
    transition: all 0.2s ease;
}

.volume-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 8px rgba(100, 255, 218, 0.6);
}

/* Volume control buttons */
.volume-controls {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.volume-btn {
    background: rgba(100, 255, 218, 0.1);
    border: 1px solid rgba(100, 255, 218, 0.3);
    border-radius: 0.5rem;
    padding: 0.5rem;
    color: var(--text-light);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
    text-align: center;
}

.volume-btn:hover {
    background: rgba(100, 255, 218, 0.2);
    color: var(--accent);
}

/* Audio visualization */
.audio-visualizer {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 120px;
    height: 40px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 998;
}

.audio-visualizer.visible {
    opacity: 1;
    visibility: visible;
}

.visualizer-bars {
    display: flex;
    align-items: end;
    justify-content: space-between;
    height: 100%;
    gap: 2px;
}

.visualizer-bar {
    width: 3px;
    background: linear-gradient(to top, var(--accent), rgba(100, 255, 218, 0.3));
    border-radius: 2px;
    transition: height 0.1s ease;
    min-height: 4px;
}

/* Responsive design */
@media (max-width: 768px) {
    .music-control {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
    }
    
    .music-control-icon {
        width: 20px;
        height: 20px;
    }
    
    .volume-control {
        bottom: 4rem;
        right: 1.5rem;
        min-width: 160px;
        padding: 0.75rem;
    }
    
    .audio-visualizer {
        bottom: 1.5rem;
        left: 1.5rem;
        width: 100px;
        height: 32px;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    .music-control,
    .volume-control,
    .visualizer-bar {
        transition: none;
    }
    
    .audio-visualizer {
        display: none;
    }
}

/* Focus styles for keyboard navigation */
.music-control:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.volume-slider:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.volume-btn:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}