:root {
    --bg-color: #0d0d0d;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #999999;
    --accent: #2196f3;
    --accent-hover: #1976d2;
    --border: rgba(255, 255, 255, 0.08);
    --radius: 8px;
    --spacing: 16px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    padding: 2rem 1rem;
}

.bg-glow {
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, #1a1a1a 0%, #0d0d0d 60%);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.mix-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing);
    margin-bottom: var(--spacing);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.mix-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.mix-card.highlighted {
    border-color: var(--accent);
    background: #1e1e1e;
}

.mix-content {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--spacing);
    align-items: start;
}

.cover-wrapper {
    position: relative;
    width: 120px;
    height: 120px;
    border-radius: 4px;
    overflow: hidden;
    background: #222;
}

.mix-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s;
}

.visualizer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    /* Let clicks pass to button */
    opacity: 0;
    transition: opacity 0.3s;
}

/* When playing, canvas is visible, cover is dimmed */
.cover-wrapper.active-visualizer .visualizer {
    opacity: 1;
}

.cover-wrapper.active-visualizer .mix-cover {
    opacity: 0.3;
    /* Dim cover to show visualizer clearly */
    filter: grayscale(100%);
}

.play-btn {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 2;
    /* Still clickable above visualizer */
}

.cover-wrapper:hover .play-btn,
.mix-card.playing .play-btn {
    opacity: 1;
}

.play-btn:hover {
    background: rgba(0, 0, 0, 0.5);
}

.play-btn svg {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

.mix-info {
    display: flex;
    flex-direction: column;
    height: 120px;
    /* Match cover height */
    justify-content: space-between;
}

.mix-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.mix-title {
    font-size: 1.125rem;
    /* 18px */
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

.mix-actions {
    display: flex;
    gap: 0.25rem;
    flex-shrink: 0;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    border: 1px solid transparent;
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-icon:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.mix-meta {
    font-size: 0.8125rem;
    /* 13px */
    color: var(--text-secondary);
    margin-top: -0.25rem;
    /* Tighten up */
}

.separator {
    margin: 0 0.35rem;
    opacity: 0.4;
}

/* Player Controls */
.player-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: auto;
}

.progress-container {
    flex: 1;
    height: 24px;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
    transition: height 0.2s;
}

.progress-container:hover .progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.15);
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.1s linear;
}

.progress-buffer {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    width: 0%;
}

.time-display {
    font-variant-numeric: tabular-nums;
    font-size: 0.75rem;
    color: var(--text-secondary);
    min-width: 35px;
    text-align: right;
}

.mix-description {
    margin-top: var(--spacing);
    padding-top: var(--spacing);
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: #ccc;
    line-height: 1.6;
}

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 3rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 600px) {
    .mix-content {
        grid-template-columns: 1fr;
        height: auto;
    }

    .cover-wrapper {
        width: 100%;
        height: auto;
        aspect-ratio: 16/9;
        /* Cinematic look on mobile */
    }

    .mix-cover {
        position: absolute;
        top: 0;
        left: 0;
    }

    .mix-info {
        height: auto;
        gap: 0.75rem;
    }

    .play-btn {
        opacity: 1;
        /* Always visible on mobile */
        background: rgba(0, 0, 0, 0.2);
        width: 48px;
        height: 48px;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        border-radius: 50%;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
}