/* ========================================
   CSS Variables
   ======================================== */
:root {
    --primary-bg: #ffffff;
    --secondary-bg: #f7f7f7;
    --accent-yellow: #f5a623;
    --accent-yellow-light: #ffd93d;
    --accent-yellow-dark: #e59510;
    --accent-dark: #1a1a1a;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --text-muted: #888888;
    --card-bg: #ffffff;
    --border-color: #e5e5e5;
    --border-light: #f0f0f0;
    --success: #22c55e;
    --error: #ef4444;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s ease;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.15);
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* ========================================
   Product Card - Premium Design
   ======================================== */
.product-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
    animation: fadeIn 0.5s ease;
    position: relative;
    cursor: pointer;
}

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

.product-image {
    position: relative;
    aspect-ratio: 1;
    background: var(--secondary-bg);
    overflow: hidden;
    cursor: pointer;
}

/* Shimmer loading placeholder */
.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        var(--secondary-bg) 0%,
        #eeeeee 40%,
        #f0f0f0 60%,
        var(--secondary-bg) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    z-index: 1;
    pointer-events: none;
}

.product-image.loaded::after {
    display: none;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.05);
    transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-image img.loaded-img,
.product-image.loaded img {
    opacity: 1;
    transform: scale(1);
}

.product-card:hover .product-image.loaded img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 6px 12px;
    background: var(--accent-yellow);
    color: var(--text-primary);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.product-actions {
    position: absolute;
    bottom: var(--space-sm);
    right: var(--space-sm);
    display: flex;
    gap: 8px;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateY(0);
}

.action-btn {
    width: 40px;
    height: 40px;
    background: var(--accent-dark);
    color: var(--accent-yellow);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--accent-yellow);
    color: var(--text-primary);
    transform: scale(1.1);
}

.action-btn svg {
    width: 20px;
    height: 20px;
}

.product-info {
    padding: var(--space-md);
}

.product-category {
    font-size: 0.7rem;
    color: var(--accent-yellow);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
    margin-bottom: 6px;
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    cursor: pointer;
}

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


/* ========================================
   Category Page
   ======================================== */
.category-page {
    display: none;
    padding: var(--space-xl) 0;
    min-height: 100vh;
    background: var(--primary-bg);
}

.category-page.active {
    display: block;
}

.category-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    font-size: 0.9rem;
}

.category-back-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    transition: var(--transition);
}

.category-back-link:hover {
    color: var(--accent-yellow);
}

.category-back-link svg {
    width: 18px;
    height: 18px;
}

.category-page-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--secondary-bg);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-xl);
}

.category-page-icon {
    font-size: 3rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, var(--accent-yellow-light) 100%);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 20px rgba(245, 166, 35, 0.3);
}

.category-page-info {
    flex: 1;
}

.category-page-name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-xs) 0;
}

.category-page-count {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0;
}

.category-page-products {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

/* Category Page Product Card */
.category-page-product {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.category-page-product:hover {
    border-color: var(--accent-yellow);
    color: #fff !important;
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.category-page-product-image {
    width: 100%;
    aspect-ratio: 1;
    background: var(--secondary-bg);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.category-page-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.category-page-product:hover .category-page-product-image img {
    transform: scale(1.08);
}

.category-page-product-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 4px 12px;
    background: var(--accent-yellow);
    color: var(--primary-bg);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.category-page-product-badge.new {
    background: #22c55e;
}

.category-page-product-info {
    padding: var(--space-md);
}

.category-page-product-category {
    font-size: 0.8rem;
    color: var(--accent-yellow);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-page-product-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
    height: 2.8em;
    cursor: pointer;
}

.category-page-product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.category-page-product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-yellow);
}

.category-page-product-cart {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-yellow);
    border: none;
    border-radius: var(--radius);
    color: var(--primary-bg);
    cursor: pointer;
    transition: var(--transition);
}

.category-page-product-cart:hover {
    background: var(--accent-yellow-dark);
    transform: scale(1.1);
}

.category-page-product-cart svg {
    width: 20px;
    height: 20px;
}

/* Category Page Pagination */
.category-page-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
}

.pagination-btn {
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.pagination-btn.active {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: #fff !important;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(245, 166, 35, 0.3);
    pointer-events: none;
}

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

.pagination-btn svg {
    width: 20px;
    height: 20px;
}

.pagination-ellipsis {
    padding: 0 var(--space-sm);
    color: var(--text-muted);
}

/* ========================================
   Products Grid Base
   ======================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

/* ========================================
   Responsive - Products & Category Page
   ======================================== */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .category-page-products {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }
}

@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .filter-bar {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .category-page {
        padding: var(--space-md) 0;
    }

    .category-breadcrumb {
        margin-bottom: var(--space-lg);
        font-size: 0.85rem;
    }

    .category-page-header {
        padding: var(--space-lg);
        flex-direction: column;
        text-align: center;
    }

    .category-page-icon {
        width: 64px;
        height: 64px;
        font-size: 2.5rem;
    }

    .category-page-name {
        font-size: 1.5rem;
    }

    .category-page-products {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .category-page-product-name {
        font-size: 0.9rem;
    }

    .category-page-product-price {
        font-size: 1.1rem;
    }

    .pagination-btn {
        min-width: 36px;
        height: 36px;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Filter Controls (Sort + View + Count)
   ======================================== */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.filter-tab {
    padding: 0.5rem 1.25rem;
    background: var(--card-bg);
    border: 1.5px solid transparent;
    border-radius: 100px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.filter-tab::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-yellow);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 100px;
    z-index: 0;
}

.filter-tab:hover {
    border-color: var(--accent-yellow);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 166, 35, 0.15);
}

.filter-tab.active {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--text-primary);
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(245, 166, 35, 0.3);
    transform: translateY(-1px);
}

.filter-tab.active::before {
    opacity: 0;
}

.filter-tab:active {
    transform: translateY(0);
}

.filter-controls {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.filter-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.filter-count #productCount {
    font-weight: 700;
    color: var(--accent-yellow);
    font-size: 1rem;
}

.filter-sort {
    position: relative;
}

.filter-select {
    appearance: none;
    padding: 0.5rem 2rem 0.5rem 0.875rem;
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.2s;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23555' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.625rem center;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-yellow);
    color: #fff !important;
}

/* View Toggle */
.filter-view-toggle {
    display: flex;
    gap: 4px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 3px;
}

.view-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
}

.view-btn svg {
    width: 18px;
    height: 18px;
}

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

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

/* ========================================
   Pagination Bar
   ======================================== */
.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    min-width: 140px;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.pagination-pages {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.pagination-size {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   List View Mode
   ======================================== */
.products-grid.view-list {
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

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

.products-grid.view-list .product-image {
    height: 160px;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.products-grid.view-list .product-info {
    padding: var(--space-lg);
}

.products-grid.view-list .product-actions {
    opacity: 1;
    position: static;
    transform: none;
    justify-content: flex-start;
    padding: var(--space-sm) var(--space-lg);
}

/* ========================================
   Responsive Filter
   ======================================== */
@media (max-width: 768px) {
    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-controls {
        width: 100%;
        justify-content: space-between;
    }

    .pagination-bar {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }

    .pagination-info {
        text-align: center;
    }

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

    .products-grid.view-list .product-image {
        height: 200px;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
}

@media (max-width: 480px) {
    .filter-view-toggle {
        display: none;
    }
}

/* Pagination Buttons */
.pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-family: inherit;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

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

.pagination-btn.active {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: #fff !important;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(245, 166, 35, 0.3);
    pointer-events: none;
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-btn svg {
    width: 16px;
    height: 16px;
}

.pagination-ellipsis {
    padding: 0 var(--space-xs);
    color: var(--text-muted);
}