/* ===== 카테고리 페이지 스타일 ===== */

.category-page {
    min-height: calc(100vh - var(--header-height));
    padding-top: var(--header-height);
}

/* 페이지 헤더 */
.page-header {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    padding: 3rem var(--content-padding);
    border-bottom: 1px solid var(--color-border);
}

.header-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.video-count {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* 콘텐츠 레이아웃 */
.category-content {
    display: flex;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 2rem var(--content-padding);
    gap: 2rem;
}

/* 사이드바 */
.category-sidebar {
    width: 240px;
    flex-shrink: 0;
}

.sidebar-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.category-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.category-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.category-link.active {
    background: var(--color-brand-primary);
    color: var(--color-text-primary);
}

.category-link .icon {
    font-size: 1.125rem;
}

.category-link .category-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.sidebar-divider {
    height: 1px;
    background: var(--color-border);
    margin: 0.75rem 0;
}

/* 메인 콘텐츠 */
.video-content {
    flex: 1;
    min-width: 0;
}

/* 툴바 */
.content-toolbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-label {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.sort-link {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sort-link:hover {
    color: var(--color-text-primary);
}

.sort-link.active {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
}

/* 비디오 그리드 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}

.video-grid .video-card {
    display: block;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.video-grid .video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.video-grid .card-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.video-grid .card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.video-grid .card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.video-grid .video-card:hover .card-overlay {
    opacity: 1;
}

.video-grid .play-icon {
    width: 50px;
    height: 50px;
    background: var(--color-brand-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.video-grid .card-duration {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.video-grid .card-badge {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
}

.video-grid .card-badge.new {
    background: var(--color-success);
    color: white;
}

.video-grid .card-badge.hot {
    background: var(--color-brand-primary);
    color: white;
}

.video-grid .card-badge.premium {
    background: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    color: #1a1a1a;
}

.video-grid .card-info {
    padding: 1rem;
}

.video-grid .card-title {
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.video-grid .card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.video-grid .card-category {
    color: var(--color-brand-primary);
}

.video-grid .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.5rem;
}

.video-grid .tag {
    padding: 0.25rem 0.5rem;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    color: var(--color-text-secondary);
}

/* 페이지네이션 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.page-numbers {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.page-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.page-link.active {
    background: var(--color-brand-primary);
    color: white;
}

.page-link.prev,
.page-link.next {
    font-weight: 500;
}

.page-ellipsis {
    padding: 0.5rem;
    color: var(--color-text-tertiary);
}

/* 빈 상태 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.empty-icon {
    color: var(--color-text-tertiary);
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

.empty-state p {
    color: var(--color-text-tertiary);
    margin-bottom: 1.5rem;
}

/* 반응형 */
@media (max-width: 1024px) {
    .category-content {
        flex-direction: column;
    }

    .category-sidebar {
        width: 100%;
    }

    .category-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .category-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }

    .sidebar-divider {
        display: none;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 2rem var(--content-padding);
    }

    .page-title {
        font-size: 1.5rem;
    }

    .category-content {
        padding: 1.5rem var(--content-padding);
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }

    .video-grid .card-info {
        padding: 0.75rem;
    }

    .video-grid .card-title {
        font-size: 0.8125rem;
    }

    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .content-toolbar {
        flex-direction: column;
        gap: 1rem;
    }

    .sort-options {
        width: 100%;
        justify-content: center;
    }

    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}