/* Контейнер категорий */
.categories-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Заголовок */
.categories-header {
    text-align: center;
    margin-bottom: 3rem;
}

.categories-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.categories-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Поиск по категориям */
.categories-search {
    max-width: 500px;
    margin: 0 auto 3rem;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper i {
    position: absolute;
    left: 16px;
    color: var(--text-muted);
    z-index: 2;
}

#categoriesSearch {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: 1.1rem;
    font-family: 'Montserrat', sans-serif;
    transition: all 0.3s ease;
    background: var(--bg-primary);
}

#categoriesSearch:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 222, 0, 0.1);
    transform: translateY(-2px);
}

/* Статистика категорий */
.categories-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card-category {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
    cursor: pointer;
}

.stat-card-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.stat-card-category .stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-card-category .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-card-category .stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Сетка категорий */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.category-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-color);
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.category-info h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.category-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.category-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.category-popular {
    margin-bottom: 1.5rem;
}

.popular-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: block;
}

.popular-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.popular-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.popular-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.category-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-category-primary,
.btn-category-secondary {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-category-primary {
    background: var(--primary-color);
    color: white;
}

.btn-category-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-category-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-category-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

/* Облако тегов */
.popular-tags-section {
    margin-bottom: 4rem;
}

.popular-tags-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.tag-cloud-item {
    padding: 8px 16px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.tag-cloud-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-md);
}

.tag-cloud-item.size-1 {
    font-size: 0.8rem;
    padding: 6px 12px;
}

.tag-cloud-item.size-2 {
    font-size: 0.9rem;
    padding: 7px 14px;
}

.tag-cloud-item.size-3 {
    font-size: 1rem;
    padding: 8px 16px;
}

.tag-cloud-item.size-4 {
    font-size: 1.1rem;
    padding: 9px 18px;
}

.tag-cloud-item.size-5 {
    font-size: 1.2rem;
    padding: 10px 20px;
}

/* Секция новых материалов */
.recent-materials-section {
    margin-top: 3rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.see-all-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s;
}

.see-all-link:hover {
    gap: 8px;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .categories-container {
        padding: 1rem;
    }

    .categories-header h1 {
        font-size: 2rem;
    }

    .categories-description {
        font-size: 1.1rem;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .categories-stats {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .category-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .categories-header h1 {
        font-size: 1.75rem;
    }

    .category-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .category-stats {
        justify-content: center;
    }

    .tags-cloud {
        padding: 1rem;
        gap: 0.75rem;
    }

    .tag-cloud-item {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}

/* Анимации для категорий */
.category-card {
    animation: fadeInUp 0.6s ease-out;
}

.category-card:nth-child(2) {
    animation-delay: 0.1s;
}

.category-card:nth-child(3) {
    animation-delay: 0.2s;
}

.category-card:nth-child(4) {
    animation-delay: 0.3s;
}

.category-card:nth-child(5) {
    animation-delay: 0.4s;
}

.category-card:nth-child(6) {
    animation-delay: 0.5s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Эффект загрузки */
.loading-categories {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4rem;
    color: var(--text-muted);
}

.loading-categories i {
    font-size: 2rem;
    margin-right: 1rem;
}