.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 120px 0 80px;
    text-align: center;
    color: var(--text-light);
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 20px;
    opacity: 0.9;
}

.products-container {
    padding: 60px 0 100px;
    background: var(--bg-secondary);
}

.products-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
}

.products-sidebar {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 32px 24px;
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.filter-section {
    margin-bottom: 32px;
}

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

.filter-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.category-list,
.brand-list,
.price-list,
.stock-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-list a,
.brand-list label,
.price-list label,
.stock-list label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    padding: 8px 12px;
    border-radius: 4px;
}

.category-list a:hover,
.brand-list label:hover,
.price-list label:hover,
.stock-list label:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.category-list a.active {
    background: var(--primary-color);
    color: var(--text-light);
}

.category-list a.active:hover {
    background: var(--primary-dark);
}

input[type="checkbox"],
input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.products-main {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.products-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.products-count {
    font-size: 14px;
    color: var(--text-secondary);
}

.products-count span {
    color: var(--primary-color);
    font-weight: 700;
}

.products-sort select {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-primary);
    cursor: pointer;
    transition: var(--transition);
}

.products-sort select:hover {
    border-color: var(--primary-color);
}

.products-sort select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.products-view {
    display: flex;
    gap: 8px;
}

.view-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

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

.view-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

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

.product-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

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

.product-image {
    height: 200px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-image i {
    font-size: 64px;
    color: var(--primary-color);
    opacity: 0.3;
    transition: var(--transition);
}

.product-card:hover .product-image i {
    opacity: 0.5;
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-light);
}

.product-badge.hot {
    background: var(--accent-color);
}

.product-badge.new {
    background: var(--primary-color);
}

.product-badge.pre-order {
    background: #95a5a6;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.product-category {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 8px;
}

.product-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.product-brand {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.product-stock {
    font-size: 12px;
    color: #27ae60;
    font-weight: 500;
}

.product-stock.pre-order {
    color: #95a5a6;
}

.product-actions {
    display: flex;
    gap: 12px;
}

.product-actions .btn {
    flex: 1;
    justify-content: center;
    padding: 10px 16px;
    font-size: 14px;
}

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

.btn-view:hover {
    background: var(--primary-color);
    color: var(--text-light);
    border-color: var(--primary-color);
}

.btn-inquiry {
    background: var(--primary-color);
    color: var(--text-light);
}

.btn-inquiry:hover {
    background: var(--primary-dark);
}

.products-grid.list-view .product-card {
    display: grid;
    grid-template-columns: 200px 1fr;
}

.products-grid.list-view .product-image {
    height: 100%;
}

.products-grid.list-view .product-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}

.pagination-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-primary);
}

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

.pagination-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-light);
}

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

@media (max-width: 1024px) {
    .products-layout {
        grid-template-columns: 240px 1fr;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .products-layout {
        grid-template-columns: 1fr;
    }

    .products-sidebar {
        position: static;
        margin-bottom: 24px;
    }

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

    .products-toolbar {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }

    .products-toolbar > * {
        width: 100%;
    }

    .products-sort select,
    .products-view {
        justify-content: center;
    }

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

    .products-grid.list-view .product-image {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 36px;
    }

    .page-header p {
        font-size: 16px;
    }

    .products-main {
        padding: 20px;
    }

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