/* ========================================
   Страница каталога курсов
======================================== */

/* Заголовок страницы */
.page-header {
    background: var(--primary);
    padding: 120px 0 60px;
    text-align: center;
    color: var(--white);
}

.page-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--white) !important;
}

.page-subtitle {
    font-size: 20px;
    opacity: 0.9;
    color: var(--white);
}

/* Секция курсов */
.courses-section {
    padding: 60px 0 100px;
    background: var(--light);
}

.courses-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
}

/* ========================================
   Боковая панель фильтров
======================================== */

.filters-sidebar {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: 90px;
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-light);
}

.filters-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.btn-reset {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.btn-reset:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.filter-group {
    margin-bottom: 24px;
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Кастомные чекбоксы */
.filter-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.filter-checkbox:hover {
    background: var(--light);
}

.filter-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkmark::after {
    content: '✓';
    font-size: 12px;
    color: var(--white);
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-fast);
}

.filter-checkbox input:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.filter-checkbox input:checked + .checkmark::after {
    opacity: 1;
    transform: scale(1);
}

.label-text {
    font-size: 14px;
    color: var(--dark);
}

/* ========================================
   Контент курсов
======================================== */

.courses-content {
    min-width: 0;
}

.courses-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.courses-count {
    font-size: 15px;
    color: var(--gray-dark);
}

.courses-count span {
    font-weight: 700;
    color: var(--dark);
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-options label {
    font-size: 14px;
    color: var(--gray-dark);
}

.sort-select {
    padding: 8px 32px 8px 12px;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    background: var(--light);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636E72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.sort-select:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Сетка курсов */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

/* Центрированная сетка для 2 курсов */
.courses-grid-centered {
    max-width: 900px;
    margin: 0 auto 40px;
}

/* Расширенные стили карточки курса */
.course-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.course-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.course-card:hover .course-image img {
    transform: scale(1.05);
}

.favorite-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    opacity: 0;
}

.course-card:hover .favorite-btn {
    opacity: 1;
}

.favorite-btn:hover {
    transform: scale(1.1);
    color: #E84393;
}

.favorite-btn.active {
    color: #E84393;
    opacity: 1;
}

.favorite-btn.active::before {
    content: '♥';
}

.course-category {
    font-size: 12px;
    color: var(--gray-dark);
    margin-bottom: 8px;
}

.course-content {
    padding: 20px;
}

.course-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.3;
}

.course-desc {
    font-size: 14px;
    color: var(--gray-dark);
    margin-bottom: 16px;
    line-height: 1.5;
}

.course-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--gray-dark);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--gray-light);
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stars {
    color: #FFD93D;
    font-size: 14px;
}

.rating-text {
    font-size: 13px;
    color: var(--gray-dark);
}

/* Бейджи курсов */
.course-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 12px;
    border-radius: var(--radius-xl);
    font-size: 11px;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-badge.beginner { background: var(--primary); }
.course-badge.travel { background: var(--accent-orange); }
.course-badge.kids { background: var(--accent-yellow); color: var(--dark); }

/* ========================================
   Пагинация
======================================== */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

.pagination-btn {
    padding: 10px 20px;
    background: var(--white);
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-xl);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: 8px;
}

.pagination-num {
    width: 40px;
    height: 40px;
    background: var(--white);
    border: 2px solid var(--gray-light);
    border-radius: 50%;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-num:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-num.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* ========================================
   Адаптивность
======================================== */

@media (max-width: 1024px) {
    .courses-layout {
        grid-template-columns: 1fr;
    }
    
    .filters-sidebar {
        position: static;
    }
    
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 36px;
    }
    
    .courses-toolbar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
}

/* ========================================
   Стили для активных ссылок навигации
======================================== */

.nav-links a.active {
    color: var(--primary);
}

.nav-links a.active::after {
    width: 100%;
}