/* ===============================
   VIDEOS PAGE STYLES
   Стили для страницы видео-курсов
   =============================== */

/* Filters and Search */
.videos-filters {
    padding: 2rem 0;
    background: var(--light-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filters-search-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.search-box {
    position: relative;
    max-width: 400px;
    width: 100%;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 3rem 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.1);
}

.search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-light);
    transition: var(--transition);
}

.search-btn:hover {
    color: var(--primary-color);
}

.sort-container select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--white);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    min-width: 200px;
}

/* Featured Course */
.featured-course {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--white);
}

.featured-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.featured-video .video-container {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.featured-badge {
    display: inline-block;
    background: var(--accent-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.featured-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    color: var(--white);
}

.featured-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.featured-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.featured-stats .stat {
    text-align: center;
}

.featured-price {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.featured-price .price-old {
    font-size: 1.2rem;
    opacity: 0.7;
    text-decoration: line-through;
}

.featured-price .price-new {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.featured-actions {
    display: flex;
    gap: 1rem;
}

.featured-actions .btn {
    min-width: 150px;
}

/* Courses Grid */
.courses-section {
    padding: 4rem 0;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.course-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.course-duration {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
}

.course-level {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
}

.course-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-badge.new {
    background: var(--success);
    color: var(--white);
}

.course-badge.bestseller {
    background: var(--accent-color);
    color: var(--text-primary);
}

.course-content {
    padding: 1.5rem;
}

.course-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.course-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.course-instructor {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.instructor-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.instructor-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stars {
    color: var(--accent-color);
}

.rating-value {
    font-weight: 600;
    color: var(--text-primary);
}

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

.course-price .price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.course-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-icon:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.load-more-container {
    text-align: center;
    margin-top: 2rem;
}

/* Course Bundle */
.course-bundle {
    padding: 4rem 0;
    background: var(--light-bg);
}

.bundle-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.bundle-title {
    color: var(--primary-color);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.bundle-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.bundle-includes h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.bundle-includes ul {
    list-style: none;
    margin-bottom: 2rem;
}

.bundle-includes li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.bundle-price {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.bundle-price .price-old {
    font-size: 1.5rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.bundle-price .price-new {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.discount {
    background: var(--success);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
}

.bundle-guarantee {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.bundle-courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.bundle-course-item {
    text-align: center;
}

.bundle-course-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
}

.bundle-course-item span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Reviews Section */
.reviews-section {
    padding: 4rem 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.review-name {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.review-rating {
    color: var(--accent-color);
}

.review-text {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-style: italic;
}

.review-course {
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Modal Styles */
.modal-large {
    max-width: 900px;
}

.modal-video {
    margin-bottom: 2rem;
}

.modal-video video {
    width: 100%;
    border-radius: var(--border-radius);
}

.modal-course-info {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .filters-search-container {
        padding: 0 1rem;
    }
    
    .filters-container {
        flex-direction: column;
        width: 100%;
    }
    
    .filter-btn {
        width: 100%;
        text-align: center;
    }
    
    .featured-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .featured-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bundle-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .bundle-courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .course-actions {
        flex-direction: column;
    }
    
    .course-actions .btn {
        width: 100%;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .featured-stats {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .bundle-courses-grid {
        grid-template-columns: 1fr;
    }
    
    .course-meta {
        flex-direction: column;
        align-items: flex-start;
    }
}