/* Products Page Styles */

/* Products Section */
.products-section {
    padding: 40px 0;
}

.products-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}

/* Products Main */
.products-main {
    min-height: 100vh;
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212427;
    margin: 0;
}

.filter-toggle-btn {
    display: none;
    background: none;
    border: 2px solid #356df1;
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-toggle-btn:hover {
    background-color: #356df1;
}

.filter-toggle-btn:hover svg path {
    fill: #ffffff;
}

/* Products Topbar */
.products-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px 0;
    border-bottom: 1px solid #e9ecef;
}

.results-count {
    font-size: 14px;
    color: #6c757d;
}

.sort-select {
    padding: 8px 12px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    background-color: #ffffff;
    font-size: 14px;
    color: #495057;
    cursor: pointer;
    min-width: 180px;
}

.sort-select:focus {
    outline: none;
    border-color: #356df1;
    box-shadow: 0 0 0 2px rgba(53, 109, 241, 0.1);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

/* Course Item */
.course-item {
    background: #f5f7f8;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
    border: 1px solid #e9ecef;
}

.course-item:hover {
    transform: translateY(-5px);
    border-color: #356df1;
}

.course-category {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
}

.category-tag {
    background-color: #ff971a;
    color: #ffffff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 400;
    text-decoration: none;
    line-height: 1.3;
}

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

.course-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px 10px 0 0;
    transition: transform 0.3s ease;
}

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

.course-content {
    padding: 20px;
}

.course-title {
    margin: 0 0 12px 0;
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.4;
}

.course-title a {
    color: #212427;
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-title a:hover {
    color: #356df1;
}

.course-excerpt {
    color: #6c757d;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-instructor {
    margin-bottom: 12px;
}

.instructor-name {
    color: #356df1;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.instructor-name:hover {
    color: #000000;
}

.course-meta {
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    row-gap: 8px;
}

.course-lessons,
.course-location {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #6c757d;
}

.course-lessons svg,
.course-location svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.course-price {
    margin-bottom: 16px;
    font-size: 1.1rem;
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}

/* Giá giảm (sale price) - màu xanh, bold, lớn hơn */
.course-price .price {
    font-size: 1.25rem;
    font-weight: 700;
    color: #28a745;
}

/* Giá gốc (original price) - màu đỏ, gạch ngang, không bold */
.course-price .old-price {
    font-size: 1rem;
    font-weight: 400;
    color: #dc3545;
    text-decoration: line-through;
}

.course-price .free {
    color: #28a745;
}

.course-price .price-prefix,
.course-price .price-suffix {
    font-size: 0.875rem;
    font-weight: 400;
    color: #6c757d;
}

.course-button {
    margin-top: auto;
}

.btn-start-learning {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px 20px;
    background-color: #356df1;
    color: #ffffff;
    text-decoration: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn-start-learning:hover {
    background-color: #000000;
    color: #ffffff;
}

.btn-start-learning i {
    font-size: 12px;
}

/* Pagination */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.pagination {
    display: flex;
    align-items: center;
    gap: 14px;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 2px solid #6c757d;
    border-radius: 50%;
    color: #6c757d;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.page-link:hover,
.page-link.active {
    background-color: #356df1;
    border-color: #356df1;
    color: #ffffff;
}

.page-link.prev,
.page-link.next {
    font-size: 14px;
}

.page-link.prev svg,
.page-link.next svg {
    width: 20px;
    height: 20px;
}

/* Sidebar */
.products-sidebar {
    background: #f5f7f8;
    border-radius: 10px;
    padding: 0;
    position: sticky;
    top: 20px;
    border: 1px solid #e9ecef;
}

.sidebar-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e9ecef;
}

.sidebar-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: #212427;
}

.sidebar-close {
    background: none;
    border: none;
    font-size: 18px;
    color: #6c757d;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.sidebar-close:hover {
    background-color: #f8f9fa;
    color: #212427;
}

.sidebar-content {
    padding: 30px;
}

.filter-section {
    margin-bottom: 30px;
}

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

.filter-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #212427;
    margin: 0 0 16px 0;
}

.category-list,
.author-list,
.price-list,
.course-category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-list li,
.author-list li,
.price-list li,
.course-category-list li {
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-list a,
.author-list a,
.price-list a,
.course-category-list a {
    color: #495057;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    flex: 1;
}

.category-list a:hover,
.author-list a:hover,
.price-list a:hover,
.course-category-list a:hover {
    color: #356df1;
}

.count {
    color: #6c757d;
    font-size: 12px;
    margin-left: 8px;
}

.reset-filters-btn,
.apply-filters-btn {
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.reset-filters-btn {
    background-color: #356df1;
    color: #ffffff;
}

.reset-filters-btn:hover {
    background-color: #000000;
}

.apply-filters-btn {
    background-color: #356df1;
    color: #ffffff;
}

.apply-filters-btn:hover {
    background-color: #000000;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .products-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .filter-toggle-btn {
        display: block;
    }
    
    .products-sidebar {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        z-index: 1000;
        transition: right 0.3s ease;
        max-height: none;
        overflow-y: auto;
        border-radius: 0;
        padding: 0;
    }
    
    .products-sidebar .sidebar-header {
        display: flex;
    }
    
    .products-sidebar .sidebar-content {
        padding: 20px;
    }
    
    .products-sidebar.active {
        right: 0;
    }
    
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 768px) {
    .products-section {
        padding: 20px 0;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .products-topbar {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .course-content {
        padding: 16px;
    }
    
    .pagination {
        gap: 8px;
    }
    
    .page-link {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .products-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .page-title {
        font-size: 1.8rem;
        text-align: center;
    }
    
    .filter-toggle-btn {
        align-self: center;
    }
    
    .products-sidebar {
        width: 280px;
        padding: 0;
    }
    
    .products-sidebar .sidebar-content {
        padding: 20px;
    }
    
    .course-item {
        margin-bottom: 20px;
    }
}