/* Modern Knowledge Center Styles - Scoped to prevent header conflicts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

.knowledge-page * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.knowledge-page {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
}

.knowledge-page .container1 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1rem;
    position: relative;
}

.knowledge-page .page-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.knowledge-page .page-title::after {
    content: '';
    position: absolute;
    bottom: -0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    border-radius: 2px;
}

.knowledge-page .video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    padding: 0.5rem 0;
}

.knowledge-page .video-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 123, 255, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    border: 1px solid rgba(0, 123, 255, 0.1);
}

.knowledge-page .video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 123, 255, 0.15);
    border-color: rgba(0, 123, 255, 0.2);
}

.knowledge-page .video-thumbnail {
    position: relative;
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.knowledge-page .video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.knowledge-page .video-card:hover .video-thumbnail img {
    transform: scale(1.05);
}

.knowledge-page .play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.knowledge-page .video-card:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
}

.knowledge-page .play-button svg {
    width: 48px;
    height: 36px;
    transition: all 0.3s ease;
}

.knowledge-page .video-card:hover .play-button svg {
    filter: brightness(1.1);
}

.knowledge-page .video-info {
    padding: 1rem;
}

.knowledge-page .video-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.knowledge-page .video-description {
    color: #64748b;
    font-size: 0.85rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.knowledge-page .no-videos {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem 1rem;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 123, 255, 0.08);
    border: 1px solid rgba(0, 123, 255, 0.1);
}

.knowledge-page .no-videos p {
    font-size: 1rem;
    color: #64748b;
    font-weight: 500;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    position: relative;
    margin: 5% auto;
    width: 90%;
    max-width: 1000px;
    height: 85%;
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: 300;
    cursor: pointer;
    z-index: 1001;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.video-container {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .knowledge-page .container1 {
        padding: 1rem 0.75rem;
    }
    
    .knowledge-page .page-title {
        font-size: 1.8rem;
        margin-bottom: 1rem;
    }
    
    .knowledge-page .video-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .knowledge-page .video-card {
        border-radius: 10px;
    }
    
    .knowledge-page .video-thumbnail {
        height: 140px;
    }
    
    .knowledge-page .video-info {
        padding: 0.75rem;
    }
    
    .modal-content {
        width: 95%;
        height: 80%;
        margin: 15% auto;
    }
    
    .close {
        top: -35px;
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .knowledge-page .container1 {
        padding: 0.75rem 0.5rem;
    }
    
    .knowledge-page .page-title {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .knowledge-page .video-grid {
        gap: 0.5rem;
    }
    
    .knowledge-page .video-thumbnail {
        height: 120px;
    }
    
    .knowledge-page .video-info {
        padding: 0.75rem;
    }
    
    .knowledge-page .video-title {
        font-size: 0.95rem;
    }
    
    .knowledge-page .video-description {
        font-size: 0.8rem;
    }
}

/* Loading Animation */
.knowledge-page .video-thumbnail img {
    animation: imageLoad 0.6s ease forwards;
}

@keyframes imageLoad {
    from {
        opacity: 0;
        transform: scale(1.1);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Accessibility Improvements */
.knowledge-page .video-card:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .knowledge-page * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .knowledge-page .video-card {
        border: 2px solid #007bff;
    }
    
    .knowledge-page .video-title {
        color: #000000;
    }
    
    .knowledge-page .video-description {
        color: #333333;
    }
}