/**
 * Management Page Redesign - Compact YouTube Cards
 * Version: 2.1
 */

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-xl);
    padding: var(--space-4xl) 0;
}

.course-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.15);
}

.course-video-thumbnail {
    width: 100%;
    height: 160px;
    position: relative;
    background: #000;
}

.course-video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-play-button {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ef4444;
}

.course-card:hover .video-play-button {
    transform: scale(1.1);
}

.course-category-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    background: rgba(239, 68, 68, 0.9);
    color: white;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    z-index: 2;
}

.video-duration-badge {
    position: absolute;
    bottom: var(--space-sm);
    right: var(--space-sm);
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 4px 8px;
    border-radius: var(--radius-md);
    font-size: 11px;
    font-weight: 600;
}

.course-content {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.course-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-instructor {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--gray-500);
}

.course-description {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    gap: var(--space-md);
    padding-top: var(--space-sm);
    margin-top: var(--space-sm);
    border-top: 1px solid var(--gray-100);
    font-size: 11px;
    color: var(--gray-500);
}

@media (max-width: 768px) {
    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

.course-card {
    animation: fadeInUp 0.4s ease-out backwards;
}

.course-card:nth-child(1) { animation-delay: 0.05s; }
.course-card:nth-child(2) { animation-delay: 0.1s; }
.course-card:nth-child(3) { animation-delay: 0.15s; }
.course-card:nth-child(4) { animation-delay: 0.2s; }
.course-card:nth-child(5) { animation-delay: 0.25s; }
.course-card:nth-child(6) { animation-delay: 0.3s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}