/**
 * Products Page Styles
 * Professional styling for product listing pages
 */

/* Header Styles */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-4) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header .header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.btn-back {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.btn-back:hover {
    background: var(--gray-50);
    color: var(--primary-dark);
}

.page-title h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.page-title p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: var(--spacing-1) 0 0;
}

.header-right {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    display: flex;
    justify-content: flex-end;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.welcome-text {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.user-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-2));
    right: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--spacing-2);
    z-index: 1000;
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    font-size: var(--font-size-sm);
}

.user-dropdown a:hover {
    background: var(--gray-50);
    color: var(--primary-color);
}

.user-dropdown hr {
    margin: var(--spacing-2) 0;
    border: none;
    border-top: 1px solid var(--gray-200);
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-6) var(--spacing-4);
}

/* Filters Section */
.filters-section {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    box-shadow: var(--shadow-sm);
}

.filters-container {
    display: flex;
    gap: var(--spacing-3);
    flex-wrap: wrap;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: var(--spacing-3);
    color: var(--gray-400);
    z-index: 1;
}

.search-box input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-3) var(--spacing-3) 2.5rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all 0.2s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filter-group {
    position: relative;
}

.filter-group select {
    padding: var(--spacing-3) 2.5rem var(--spacing-3) var(--spacing-3);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--white);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 180px;
    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='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#applyFilters {
    padding: var(--spacing-3) var(--spacing-6);
    white-space: nowrap;
}

/* Products Section */
.products-section {
    margin-bottom: var(--spacing-8);
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.products-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.view-toggle {
    display: flex;
    gap: var(--spacing-2);
    background: var(--gray-100);
    padding: var(--spacing-1);
    border-radius: var(--radius-lg);
}

.view-btn {
    padding: var(--spacing-2) var(--spacing-4);
    border: none;
    background: transparent;
    color: var(--gray-600);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
}

.view-btn.active {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

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

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-6);
}

.products-grid.list-view {
    grid-template-columns: 1fr;
}

.products-grid.list-view .product-card {
    display: flex;
    flex-direction: row;
    max-width: 100%;
}

.products-grid.list-view .product-image {
    width: 250px;
    height: 200px;
    flex-shrink: 0;
}

.products-grid.list-view .product-info {
    flex: 1;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.product-image {
    position: relative;
    height: 220px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--spacing-4);
    transition: transform 0.3s ease;
}

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay .btn {
    padding: var(--spacing-3) var(--spacing-5);
}

.product-info {
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-category {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-2);
}

.product-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-2) 0;
    line-height: 1.4;
}

.product-description {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    line-height: 1.5;
    margin-bottom: var(--spacing-4);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
}

.price-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.price-label {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

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

.min-quantity {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.min-quantity i {
    color: var(--gray-400);
}

.product-actions {
    display: flex;
    gap: var(--spacing-2);
    margin-top: auto;
}

.product-actions .btn {
    flex: 1;
    justify-content: center;
    min-height: 44px;
}

.product-actions .btn-secondary {
    flex: 0 0 auto;
    width: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-actions .add-to-favorites {
    color: var(--gray-400);
    border: 1px solid var(--gray-300);
}

.product-actions .add-to-favorites.favorited {
    color: var(--error-color);
    border-color: var(--error-color);
}

.product-actions .add-to-favorites:hover {
    color: var(--error-color);
    border-color: var(--error-color);
    background: rgba(239, 68, 68, 0.1);
}

/* No Products State */
.no-products {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-4);
    grid-column: 1 / -1;
}

.no-products i {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-4);
}

.no-products h3 {
    font-size: var(--font-size-xl);
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.no-products p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-6);
}

/* Pagination */
.pagination-section {
    margin-top: var(--spacing-8);
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    background: var(--white);
    padding: var(--spacing-3);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.pagination-btn {
    padding: var(--spacing-2) var(--spacing-4);
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--gray-700);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: 500;
    min-height: 44px;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    padding: 0 var(--spacing-4);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-2xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-5);
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    min-width: 44px;
    min-height: 44px;
}

.modal-close:hover {
    background: var(--error-color);
    color: white;
}

.modal-body {
    padding: var(--spacing-5);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-5);
    border-top: 1px solid var(--gray-200);
}

.product-modal-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-6);
}

.product-modal-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gray-50);
}

.product-modal-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-modal-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
}

.product-modal-info .product-category {
    margin-bottom: var(--spacing-3);
}

.product-modal-info .product-description {
    margin-bottom: var(--spacing-4);
    -webkit-line-clamp: unset;
}

.product-features {
    margin-top: var(--spacing-4);
}

.product-features h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
}

.product-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-features li {
    padding: var(--spacing-2) 0;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.product-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
    margin-right: var(--spacing-2);
}

.loading-spinner {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--gray-600);
}

.error-message {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--error-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-4);
    }
    
    .product-modal-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header .header-left {
        flex-wrap: wrap;
    }
    
    .filters-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box,
    .filter-group select {
        width: 100%;
        min-width: unset;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .products-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .product-details {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-2);
    }
    
    .modal-content {
        max-height: 95vh;
        margin: var(--spacing-2);
    }
    
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-4) var(--spacing-3);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid.list-view .product-card {
        flex-direction: column;
    }
    
    .products-grid.list-view .product-image {
        width: 100%;
    }
    
    .page-title h1 {
        font-size: var(--font-size-xl);
    }
    
    .welcome-text {
        display: none;
    }
    
    .modal-content {
        margin: 0;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        max-height: 100vh;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-4);
    }
}