.filter-sidebar {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    position: sticky;
    top: 20px;
}

.filter-section {
    padding: 20px;
}

.filter-section h5 {
    font-size: 0.85rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filter-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: #475569;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.filter-item:hover {
    background: #f1f5f9;
    color: #003f7d;
}

.filter-item.active {
    background: #003f7d;
    color: white;
}

.filter-item i {
    width: 18px;
    text-align: center;
    font-size: 0.85rem;
}

.content-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    color: #64748b;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.25s ease;
}

.tab-btn:hover {
    border-color: #003f7d;
    color: #003f7d;
}

.tab-btn.active {
    background: #003f7d;
    border-color: #003f7d;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 63, 125, 0.25);
}

.tab-btn i {
    font-size: 1rem;
}

.tab-btn .count {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
}

.tab-btn.active .count {
    background: rgba(255, 255, 255, 0.2);
}

.content-panel {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.content-panel.active {
    opacity: 1;
    transform: translateY(0);
}

.documents-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.document-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
    transition: all 0.25s ease;
}

.document-row:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transform: translateX(4px);
}

.doc-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.doc-icon i {
    font-size: 1.25rem;
    color: #dc2626;
}

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

.doc-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 4px 0;
}

.doc-info p {
    font-size: 0.85rem;
    color: #94a3b8;
    margin: 0 0 6px 0;
}

.doc-category {
    display: inline-block;
    padding: 3px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    background: #f1f5f9;
    color: #64748b;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.doc-download {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #003f7d 0%, #0052b3 100%);
    color: white;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: all 0.25s ease;
}

.doc-download:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 63, 125, 0.3);
    color: white;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.video-card {
    display: block;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    background: #1e293b;
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.video-thumb .play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 56px;
    height: 56px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.video-thumb .play-btn i {
    color: #003f7d;
    font-size: 1.2rem;
    margin-left: 4px;
}

.video-card:hover .play-btn {
    transform: translate(-50%, -50%) scale(1.15);
}

.video-info {
    padding: 16px;
}

.video-info h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 6px 0;
}

.video-category {
    font-size: 0.75rem;
    color: #003f7d;
    font-weight: 600;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 12px;
}

.empty-state i {
    font-size: 3rem;
    color: #cbd5e1;
    margin-bottom: 16px;
}

.empty-state h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #475569;
    margin-bottom: 8px;
}

.empty-state p {
    color: #94a3b8;
    margin-bottom: 20px;
}

@media (max-width: 991px) {
    .filter-sidebar {
        position: static;
        margin-bottom: 20px;
    }

    .filter-list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .filter-item {
        padding: 8px 14px;
    }
}

@media (max-width: 768px) {
    .content-tabs {
        flex-direction: column;
    }

    .document-row {
        flex-direction: column;
        text-align: center;
    }

    .doc-download {
        width: 100%;
        justify-content: center;
    }
}