.page-gallery {
    background: var(--bg-primary);
}

.page-gallery .gallery-mobile-tabs {
    margin-top: calc(-1 * var(--navbar-height));
    padding-top: calc(var(--navbar-height) + 16px);
}

.gallery-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: calc(100vh - var(--navbar-height));
}

.gallery-sidebar {
    position: sticky;
    top: var(--navbar-height);
    height: calc(100vh - var(--navbar-height));
    padding: 32px 24px;
    border-right: 1px solid var(--border);
    background: var(--bg-surface);
    overflow-y: auto;
}

.sidebar-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
    padding: 0 12px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    cursor: pointer;
}

.sidebar-link:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.sidebar-link.active {
    color: var(--accent);
    background: var(--accent-light);
    font-weight: 600;
}

.sidebar-link-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.sidebar-link-count {
    margin-left: auto;
    font-size: 0.78rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

.sidebar-divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

.sidebar-info {
    padding: 12px;
    font-size: 0.82rem;
    color: var(--text-tertiary);
    line-height: 1.5;
}

.gallery-main {
    padding: 32px;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.gallery-header-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gallery-header-count {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    font-weight: 400;
    margin-left: 8px;
}

.gallery-view-toggle {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--radius-sm);
}

.view-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--text-tertiary);
    transition: var(--transition-fast);
    cursor: pointer;
}

.view-btn:hover {
    color: var(--text-secondary);
}

.view-btn.active {
    background: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: var(--shadow-xs);
}

.gallery-grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

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

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-secondary);
    transition: var(--transition-fast);
}

.gallery-grid-view .gallery-item {
    aspect-ratio: 4/3;
}

.gallery-list-view .gallery-item {
    display: grid;
    grid-template-columns: 240px 1fr;
    height: 160px;
}

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

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.65), transparent 50%);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
}

.gallery-item:hover .gallery-item-overlay {
    opacity: 1;
}

.gallery-item-info h4 {
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.gallery-item-info p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
}

.gallery-item-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-primary);
}

.gallery-list-view .gallery-item-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.gallery-list-view .gallery-item-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.gallery-list-view .gallery-item-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.gallery-list-view .gallery-item-meta {
    font-size: 0.78rem;
    color: var(--text-tertiary);
}

.gallery-empty {
    text-align: center;
    padding: 80px 20px;
    grid-column: 1 / -1;
}

.gallery-empty-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
}

.gallery-empty h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.gallery-empty p {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.gallery-mobile-tabs {
    display: none;
    padding: 16px 20px;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
    background: var(--bg-surface);
}

.mobile-tab-btn {
    padding: 8px 18px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: var(--bg-surface);
    transition: var(--transition-fast);
    cursor: pointer;
    flex-shrink: 0;
}

.mobile-tab-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

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

@media (max-width: 1024px) {
    .gallery-layout {
        grid-template-columns: 200px 1fr;
    }
}

@media (max-width: 768px) {
    .gallery-layout {
        grid-template-columns: 1fr;
    }

    .gallery-sidebar {
        display: none;
    }

    .gallery-mobile-tabs {
        display: flex;
    }

    .gallery-main {
        padding: 20px;
    }

    .gallery-grid-view {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 12px;
    }

    .gallery-list-view .gallery-item {
        grid-template-columns: 160px 1fr;
        height: 120px;
    }
}

@media (max-width: 480px) {
    .gallery-grid-view {
        grid-template-columns: 1fr;
    }

    .gallery-list-view .gallery-item {
        grid-template-columns: 1fr;
        height: auto;
    }

    .gallery-list-view .gallery-item img {
        aspect-ratio: 16/9;
    }
}