/* Minimal Professional Design for YouTunes */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #1a1a1a;
    --text-secondary: #6c757d;
    --border-color: #e0e0e0;
    --accent: #0066cc;
    --accent-hover: #0052a3;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-content {
    margin-bottom: 16px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tagline {
    font-size: 14px;
    color: var(--text-secondary);
}

.search-bar {
    display: flex;
    gap: 8px;
    max-width: 600px;
}

.search-bar input {
    flex: 1;
    padding: 12px 16px;
    font-size: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    outline: none;
    transition: all 0.2s;
}

.search-bar input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.search-bar button {
    padding: 12px 20px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.search-bar button:hover {
    background: var(--accent-hover);
}

/* Main Content */
.main {
    padding: 48px 0;
}

.section {
    margin-bottom: 64px;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

/* Track Grid (Latest) */
.track-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.track-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s;
}

.track-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.track-card-header {
    margin-bottom: 16px;
}

.track-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.track-source {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.track-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.tag {
    padding: 4px 10px;
    background: var(--bg-secondary);
    border-radius: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.tag.genre {
    background: #e3f2fd;
    color: #1565c0;
}

.tag.mood {
    background: #f3e5f5;
    color: #6a1b9a;
}

.tag.channel {
    background: #fff3e0;
    color: #e65100;
}

.track-actions {
    display: flex;
    gap: 8px;
}

.btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #e0e0e0;
}

/* Track List (Archive) */
.track-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.track-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.track-item:hover {
    box-shadow: var(--shadow);
}

.track-item-main {
    flex: 1;
}

.track-item-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.track-item-meta {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.track-item-actions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    padding: 8px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.icon-btn:hover {
    background: var(--bg-secondary);
    color: var(--accent);
}

/* Player */
.player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 200;
    transition: transform 0.3s;
}

.player.hidden {
    transform: translateY(100%);
}

.player-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.player-info {
    flex: 1;
    min-width: 0;
}

.player-title {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-meta {
    font-size: 13px;
    color: var(--text-secondary);
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.control-btn {
    padding: 8px;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn:hover {
    background: var(--bg-secondary);
}

.player-progress {
    width: 200px;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    cursor: pointer;
    margin-bottom: 4px;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s;
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 32px 0;
    margin-top: 64px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent);
}

/* Loading State */
.loading {
    text-align: center;
    padding: 48px;
    color: var(--text-secondary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--text-secondary);
}

.empty-state h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 16px 0;
    }

    .logo {
        font-size: 24px;
    }

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

    .player-content {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .player-controls {
        flex-wrap: wrap;
    }

    .player-progress {
        order: -1;
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .search-bar {
        flex-direction: column;
    }

    .search-bar button {
        width: 100%;
    }

    .track-item {
        flex-direction: column;
        align-items: stretch;
    }

    .track-item-actions {
        justify-content: space-between;
    }
}