/* Multimedia CSS - Professional & Attractive Design */

:root {
    --primary: #6c5ce7;
    --secondary: #a29bfe;
    --accent: #fd79a8;
    --success: #00b894;
    --bg: #f6f7fb;
    --card: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.1);
    --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.15);
    --radius: 12px;
}

/* Media Grid */
.multimedia-section {
    background: var(--card);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.multimedia-section h2 {
    color: var(--primary);
    margin-top: 0;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.section-intro {
    color: var(--muted);
    font-size: 1.05rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Video Grid */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.media-card {
    background: var(--bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.media-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.media-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    aspect-ratio: 16 / 9;
}

.media-container video,
.media-container audio {
    width: 100%;
    height: 100%;
    display: block;
}

.media-container video::-webkit-media-controls {
    background: linear-gradient(180deg, rgba(0,0,0,0.3), rgba(0,0,0,0.1));
}

.media-info {
    padding: 1.5rem;
}

.media-info h3 {
    margin: 0 0 0.75rem 0;
    color: var(--text);
    font-size: 1.25rem;
    line-height: 1.4;
}

.media-info p {
    margin: 0 0 1.25rem 0;
    color: var(--muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

.media-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.media-meta span {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    background: var(--bg);
    border-radius: 20px;
    color: var(--muted);
    border: 1px solid var(--border);
}

.media-meta .duration {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
}

.media-meta .level {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
    border: none;
}

/* Audio List */
.audio-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.audio-card {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg);
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    align-items: flex-start;
}

.audio-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.audio-player-wrapper {
    flex-shrink: 0;
    width: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.audio-icon {
    font-size: 2.5rem;
}

.audio-player-wrapper audio {
    width: 100%;
    max-width: 120px;
    border-radius: 8px;
}

.audio-player-wrapper audio::-webkit-media-controls-panel {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
}

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

.audio-info h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text);
    font-size: 1.15rem;
}

.audio-info p {
    margin: 0 0 1rem 0;
    color: var(--muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

.audio-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--muted);
    flex-wrap: wrap;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
}

.cta-section h2 {
    color: white;
    margin-top: 0;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* Lazy Loading Placeholder */
.lazy-video,
.lazy-audio {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .multimedia-section {
        padding: 1.5rem;
    }

    .media-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .audio-card {
        flex-direction: column;
        gap: 1rem;
    }

    .audio-player-wrapper {
        width: 100%;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .audio-player-wrapper audio {
        max-width: 100%;
        flex: 1;
    }

    .multimedia-section h2 {
        font-size: 1.5rem;
    }

    .section-intro {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .multimedia-section {
        padding: 1rem;
    }

    .media-grid {
        gap: 1rem;
    }

    .media-card {
        border-width: 1px;
    }

    .media-info {
        padding: 1rem;
    }

    .audio-card {
        padding: 1rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

/* Print Styles */
@media print {
    .multimedia-section {
        page-break-inside: avoid;
    }

    .media-card,
    .audio-card {
        page-break-inside: avoid;
    }

    .btn {
        display: none;
    }
}

/* Accessibility */
audio:focus,
video:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* Video Controls Enhancement */
video::-webkit-media-controls-panel {
    background: linear-gradient(180deg, rgba(0,0,0,0.4), rgba(0,0,0,0.2));
}

video::-moz-media-controls-panel {
    background: linear-gradient(180deg, rgba(0,0,0,0.4), rgba(0,0,0,0.2));
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}