/**
 * WC Equivalent Products - Frontend Styles
 */

/* ========================================
   CSS Variables
======================================== */
:root {
    --wcep-primary: #3B82F6;
    --wcep-primary-dark: #1D4ED8;
    --wcep-success: #10B981;
    --wcep-warning: #F59E0B;
    --wcep-danger: #EF4444;
    --wcep-gray-100: #F3F4F6;
    --wcep-gray-200: #E5E7EB;
    --wcep-gray-400: #9CA3AF;
    --wcep-gray-600: #4B5563;
    --wcep-gray-800: #1F2937;
    --wcep-gray-900: #111827;
    --wcep-radius: 12px;
    --wcep-radius-sm: 8px;
    --wcep-shadow: 0 1px 3px rgba(0,0,0,0.1);
    --wcep-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --wcep-transition: all 0.2s ease;
}

/* ========================================
   Main Container
======================================== */
.wcep-equivalent-products {
    margin: 40px 0;
    padding: 0;
}

.wcep-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--wcep-gray-900);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--wcep-gray-100);
}

/* ========================================
   Products Grid
======================================== */
.wcep-products-grid {
    display: grid;
    gap: 20px;
}

.wcep-cols-2 .wcep-products-grid { grid-template-columns: repeat(2, 1fr); }
.wcep-cols-3 .wcep-products-grid { grid-template-columns: repeat(3, 1fr); }
.wcep-cols-4 .wcep-products-grid { grid-template-columns: repeat(4, 1fr); }
.wcep-cols-5 .wcep-products-grid { grid-template-columns: repeat(5, 1fr); }
.wcep-cols-6 .wcep-products-grid { grid-template-columns: repeat(6, 1fr); }

/* ========================================
   Product Card - Base
======================================== */
.wcep-product-card {
    position: relative;
    background: white;
    border-radius: var(--wcep-radius);
    overflow: hidden;
    transition: var(--wcep-transition);
}

.wcep-product-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

/* ========================================
   Product Card - Modern Style (Default)
======================================== */
.wcep-style-modern .wcep-product-card {
    box-shadow: var(--wcep-shadow);
    border: 1px solid var(--wcep-gray-200);
}

.wcep-style-modern .wcep-product-card:hover {
    box-shadow: var(--wcep-shadow-md);
    transform: translateY(-4px);
}

/* ========================================
   Product Card - Minimal Style
======================================== */
.wcep-style-minimal .wcep-product-card {
    background: transparent;
}

.wcep-style-minimal .wcep-product-image {
    border-radius: var(--wcep-radius);
    overflow: hidden;
}

/* ========================================
   Product Card - Bordered Style
======================================== */
.wcep-style-bordered .wcep-product-card {
    border: 2px solid var(--wcep-gray-200);
}

.wcep-style-bordered .wcep-product-card:hover {
    border-color: var(--wcep-primary);
}

/* ========================================
   Product Card - Elevated Style
======================================== */
.wcep-style-elevated .wcep-product-card {
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.wcep-style-elevated .wcep-product-card:hover {
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    transform: translateY(-8px);
}

/* ========================================
   Product Card - Glassmorphism Style
======================================== */
.wcep-style-glassmorphism .wcep-product-card {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

/* ========================================
   Product Image
======================================== */
.wcep-product-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--wcep-gray-100);
}

.wcep-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.wcep-badge-sale {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--wcep-danger);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}

/* ========================================
   Product Content
======================================== */
.wcep-product-content {
    padding: 16px;
}

.wcep-product-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--wcep-gray-800);
    margin: 0 0 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.wcep-product-rating {
    margin-bottom: 8px;
}

.wcep-product-rating .star-rating {
    font-size: 12px;
}

.wcep-product-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--wcep-gray-900);
}

.wcep-product-price del {
    font-size: 13px;
    font-weight: 400;
    color: var(--wcep-gray-400);
    margin-right: 8px;
}

.wcep-product-price ins {
    text-decoration: none;
    color: var(--wcep-danger);
}

/* ========================================
   Product Actions
======================================== */
.wcep-product-actions {
    padding: 0 16px 16px;
}

.wcep-add-to-cart,
.wcep-select-options {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 600;
    background: var(--wcep-primary);
    color: white;
    border: none;
    border-radius: var(--wcep-radius-sm);
    cursor: pointer;
    transition: var(--wcep-transition);
    text-decoration: none;
}

.wcep-add-to-cart:hover,
.wcep-select-options:hover {
    background: var(--wcep-primary-dark);
}

.wcep-add-to-cart svg {
    width: 18px;
    height: 18px;
}

.wcep-add-to-cart.loading {
    pointer-events: none;
    opacity: 0.7;
}

.wcep-add-to-cart.added {
    background: var(--wcep-success);
}

/* ========================================
   Carousel Layout
======================================== */
.wcep-swiper {
    position: relative;
    padding-bottom: 40px;
}

.wcep-swiper .swiper-slide {
    height: auto;
}

.wcep-swiper-nav {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
    padding: 0 10px;
}

.wcep-swiper-prev,
.wcep-swiper-next {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 1px solid var(--wcep-gray-200);
    border-radius: 50%;
    cursor: pointer;
    pointer-events: all;
    transition: var(--wcep-transition);
    box-shadow: var(--wcep-shadow);
}

.wcep-swiper-prev:hover,
.wcep-swiper-next:hover {
    background: var(--wcep-primary);
    color: white;
    border-color: var(--wcep-primary);
}

.wcep-swiper-prev svg,
.wcep-swiper-next svg {
    width: 20px;
    height: 20px;
}

.wcep-swiper-pagination {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.wcep-swiper-pagination .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    background: var(--wcep-gray-300);
    opacity: 1;
}

.wcep-swiper-pagination .swiper-pagination-bullet-active {
    background: var(--wcep-primary);
    width: 24px;
    border-radius: 4px;
}

/* ========================================
   List Layout
======================================== */
.wcep-layout-list .wcep-products-grid {
    grid-template-columns: 1fr;
}

.wcep-layout-list .wcep-product-card {
    display: flex;
    align-items: center;
}

.wcep-layout-list .wcep-product-link {
    display: flex;
    align-items: center;
    flex: 1;
}

.wcep-layout-list .wcep-product-image {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
    aspect-ratio: auto;
}

.wcep-layout-list .wcep-product-content {
    flex: 1;
}

.wcep-layout-list .wcep-product-actions {
    padding: 16px;
    width: 160px;
    flex-shrink: 0;
}

/* ========================================
   Compact Layout
======================================== */
.wcep-layout-compact .wcep-product-content {
    padding: 12px;
}

.wcep-layout-compact .wcep-product-title {
    font-size: 13px;
    -webkit-line-clamp: 1;
}

.wcep-layout-compact .wcep-product-price {
    font-size: 14px;
}

.wcep-layout-compact .wcep-product-actions {
    padding: 0 12px 12px;
}

.wcep-layout-compact .wcep-add-to-cart,
.wcep-layout-compact .wcep-select-options {
    padding: 8px 12px;
    font-size: 12px;
}

/* ========================================
   Responsive
======================================== */
@media (max-width: 992px) {
    .wcep-cols-5 .wcep-products-grid,
    .wcep-cols-6 .wcep-products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .wcep-cols-3 .wcep-products-grid,
    .wcep-cols-4 .wcep-products-grid,
    .wcep-cols-5 .wcep-products-grid,
    .wcep-cols-6 .wcep-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .wcep-layout-list .wcep-product-card {
        flex-direction: column;
    }
    
    .wcep-layout-list .wcep-product-link {
        flex-direction: column;
    }
    
    .wcep-layout-list .wcep-product-image {
        width: 100%;
        height: auto;
        aspect-ratio: 1;
    }
    
    .wcep-layout-list .wcep-product-actions {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .wcep-cols-2 .wcep-products-grid,
    .wcep-cols-3 .wcep-products-grid,
    .wcep-cols-4 .wcep-products-grid,
    .wcep-cols-5 .wcep-products-grid,
    .wcep-cols-6 .wcep-products-grid {
        grid-template-columns: 1fr;
    }
    
    .wcep-section-title {
        font-size: 1.25rem;
    }
}

/* ========================================
   Animation
======================================== */
@keyframes wcepFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.wcep-product-card {
    animation: wcepFadeIn 0.4s ease forwards;
}

.wcep-product-card:nth-child(1) { animation-delay: 0s; }
.wcep-product-card:nth-child(2) { animation-delay: 0.1s; }
.wcep-product-card:nth-child(3) { animation-delay: 0.2s; }
.wcep-product-card:nth-child(4) { animation-delay: 0.3s; }