/**
 * Universal Product Grid - Premium Skins
 * 16 unique product card variations for WooCommerce
 * 
 * @package Bith_Core
 * @since 1.0.0
 */

/* =============================================
   BASE STYLES & SHARED COMPONENTS
   ============================================= */
.bith-universal-product-grid {
    width: 100%;
}

.products-grid,
.products-list {
    display: grid;
    width: 100%;
}

.products-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.products-list {
    grid-template-columns: 1fr;
    gap: 20px;
}

/* Product Card Base */
.product-card {
    background: var(--surface, #ffffff);
    border-radius: var(--radius, 20px);
    overflow: hidden;
    transition: transform var(--transition-normal, 0.3s ease),
        box-shadow var(--transition-normal, 0.3s ease);
}

.product-image-wrapper {
    position: relative;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow, 0.5s ease);
}

/* Product Badges */
.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 6px 14px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 6px;
    z-index: 10;
}

.badge-sale {
    background: var(--color-sale, #E53E3E);
    color: #ffffff;
}

.badge-new {
    background: var(--color-new, #38A169);
    color: #ffffff;
}

/* Product Info */
.product-info {
    padding: 20px;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--bith-primary, #4FD1C5);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.product-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--bith-heading-color, #1A202C);
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.product-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast, 0.2s ease);
}

.product-title a:hover {
    color: var(--bith-primary, #4FD1C5);
}

/* Product Rating */
.product-rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.stars {
    display: flex;
    gap: 2px;
}

.stars i {
    font-size: 0.75rem;
    color: var(--bith-accent, #F6AD55);
}

.rating-count {
    font-size: 0.75rem;
    color: var(--bith-text-muted, #718096);
}

/* Product Price */
.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* WooCommerce Price Structure */
.product-price .woocommerce-Price-amount,
.product-price .amount,
.product-price ins,
.product-price ins .woocommerce-Price-amount {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--bith-heading-color, #1A202C);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.product-price ins {
    background: none;
    text-decoration: none;
}

.product-price del,
.product-price del .woocommerce-Price-amount,
.product-price .price-regular {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--bith-text-muted, #999);
    text-decoration: line-through;
    opacity: 0.75;
}

/* Legacy custom classes (if used) */
.price-sale,
.price-current {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--bith-heading-color, #1A202C);
    letter-spacing: -0.02em;
}

.price-regular {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--bith-text-muted, #999);
    text-decoration: line-through;
    opacity: 0.75;
}

/* Add to Cart Buttons */
.btn-add-cart {
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast, 0.2s ease);
}

/* =============================================
   SKIN 1: The Classic Retail
   ============================================= */
.skin-classic {
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
}

.skin-classic:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover, 0 15px 35px -10px rgba(79, 209, 197, 0.3));
}

.skin-classic .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-classic .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.skin-classic:hover .product-image {
    transform: scale(1.05);
}

.skin-classic .btn-add-cart.slide-up {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(135deg, var(--bith-primary, #4FD1C5), var(--bith-primary-dark, #38B2AC));
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transform: translateY(100%);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 -4px 16px rgba(79, 209, 197, 0.2);
}

.skin-classic:hover .btn-add-cart.slide-up {
    transform: translateY(0);
    box-shadow: 0 -8px 24px rgba(79, 209, 197, 0.3);
}

.skin-classic .btn-add-cart.slide-up:hover {
    background: linear-gradient(135deg, var(--bith-primary-dark, #38B2AC), #2C7A7B);
    letter-spacing: 0.05em;
}

/* =============================================
   SKIN 2: Minimalist Clean
   ============================================= */
.skin-minimal {
    background: transparent;
    box-shadow: none;
    border-radius: 0;
}

.skin-minimal .product-image-wrapper {
    aspect-ratio: 1 / 1;
    background: var(--surface-gray, #F7FAFC);
    border-radius: var(--radius-sm, 12px);
    margin-bottom: 16px;
    transition: background var(--transition-normal, 0.3s ease);
}

.skin-minimal:hover .product-image-wrapper {
    background: #EDF2F7;
}

.skin-minimal .product-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    transition: transform var(--transition-slow, 0.5s ease);
}

.skin-minimal:hover .product-image {
    transform: scale(1.08);
}

.skin-minimal .product-info {
    padding: 0;
    text-align: left;
}

.skin-minimal .product-title {
    font-size: 0.95rem;
    font-weight: 500;
}

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

.skin-minimal .product-rating .stars i {
    font-size: 0.65rem;
}

.skin-minimal .product-price .price-sale,
.skin-minimal .product-price .price-current {
    font-size: 1.4rem;
    font-weight: 800;
}

.badge-sale-minimal,
.badge-new-minimal {
    background: transparent;
    color: var(--bith-heading-color, #1A202C);
    font-size: 0.65rem;
    font-weight: 600;
    padding: 4px 0;
}

.badge-sale-minimal {
    color: var(--color-sale, #E53E3E);
}

.badge-new-minimal {
    color: var(--color-new, #38A169);
}

/* =============================================
   SKIN 3: The Floating Action
   ============================================= */
.skin-floating {
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
}

.skin-floating:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg, 0 10px 30px -10px rgba(79, 209, 197, 0.2));
}

.skin-floating .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-floating .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-floating-add {
    position: absolute;
    bottom: 15px;
    right: 15px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bith-primary, #4FD1C5), var(--bith-primary-dark, #38B2AC));
    color: white;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 8px 24px rgba(79, 209, 197, 0.5),
        0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
    z-index: 10;
}

.btn-floating-add .floating-text {
    display: none;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.btn-floating-add:hover {
    width: 145px;
    border-radius: 28px;
    box-shadow: 0 12px 32px rgba(79, 209, 197, 0.6),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-floating-add:hover .floating-text {
    display: block;
}

.btn-floating-add:active {
    transform: scale(0.92);
}

/* =============================================
   SKIN 4: Gallery Hover (Swap)
   ============================================= */
.skin-gallery {
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.08));
    border: 1px solid var(--bith-border-color, #E2E8F0);
}

.skin-gallery:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg, 0 10px 30px -10px rgba(79, 209, 197, 0.2));
    border-color: transparent;
}

.skin-gallery .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-gallery .product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity var(--transition-slow, 0.5s ease);
}

.skin-gallery .product-image.primary {
    opacity: 1;
}

.skin-gallery .product-image.secondary {
    opacity: 0;
}

.skin-gallery:hover .product-image.primary {
    opacity: 0;
}

.skin-gallery:hover .product-image.secondary {
    opacity: 1;
}

.btn-add-cart-gallery {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    background: transparent;
    color: var(--bith-heading-color, #1A202C);
    border: 2px solid var(--bith-border-color, #E2E8F0);
    border-radius: var(--radius-sm, 12px);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
}

.btn-add-cart-gallery:hover {
    background: var(--bith-primary, #4FD1C5);
    border-color: var(--bith-primary, #4FD1C5);
    color: white;
}

/* =============================================
   SKIN 5: Glassmorphism Info
   ============================================= */
.skin-glass {
    position: relative;
    aspect-ratio: 3 / 4;
    border-radius: var(--radius, 20px);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08);
}

.skin-glass:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 16px 48px rgba(79, 209, 197, 0.2),
        0 8px 16px rgba(0, 0, 0, 0.1);
}

.skin-glass .product-image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.skin-glass .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.skin-glass:hover .product-image {
    transform: scale(1.08);
}

.glass-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 20px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.04);
    transform: translateY(0);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.skin-glass:hover .glass-info {
    transform: translateY(-8px);
    background: linear-gradient(to top, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.9) 100%);
}

.glass-content {
    flex: 1;
}

.glass-content .product-title {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 6px;
    line-height: 1.3;
}

.glass-content .product-price {
    gap: 8px;
}

.glass-content .price-sale,
.glass-content .price-current {
    font-size: 1.2rem;
    font-weight: 600;
}

.glass-content .price-regular {
    font-size: 0.85rem;
    font-weight: 400;
}

.btn-glass-cart {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bith-primary, #4FD1C5) 0%, var(--bith-primary-dark, #38B2AC) 100%);
    color: white;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 8px 24px rgba(79, 209, 197, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.08);
}

.btn-glass-cart:hover {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 12px 32px rgba(79, 209, 197, 0.5),
        0 4px 12px rgba(0, 0, 0, 0.12);
}

.badge-glass-sale,
.badge-glass-new {
    padding: 8px 16px;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 8px;
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.badge-glass-sale {
    background: rgba(229, 62, 62, 0.92);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-glass-new {
    background: rgba(56, 161, 105, 0.92);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* =============================================
   SKIN 6: Quick View Focus
   ============================================= */
.skin-quickview {
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
}

.skin-quickview:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg, 0 10px 30px -10px rgba(79, 209, 197, 0.2));
}

.skin-quickview .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-quickview .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.quickview-overlay {
    position: absolute;
    inset: 0;
    background: var(--surface-dark, rgba(26, 32, 44, 0.85));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal, 0.3s ease);
}

.skin-quickview:hover .quickview-overlay {
    opacity: 1;
    visibility: visible;
}

.btn-quickview,
.btn-add-quickview {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border: none;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateY(25px);
    opacity: 0;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.skin-quickview:hover .btn-quickview,
.skin-quickview:hover .btn-add-quickview {
    transform: translateY(0);
    opacity: 1;
}

.skin-quickview:hover .btn-add-quickview {
    transition-delay: 0.1s;
}

.btn-quickview {
    background: white;
    color: var(--bith-heading-color, #1A202C);
}

.btn-quickview:hover {
    background: var(--surface-gray, #F7FAFC);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
}

.btn-add-quickview {
    background: linear-gradient(135deg, var(--bith-primary, #4FD1C5), var(--bith-primary-dark, #38B2AC));
    color: white;
}

.btn-add-quickview:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(79, 209, 197, 0.4);
}

/* =============================================
   SKIN 7: Sale Countdown
   ============================================= */
.skin-countdown {
    border: 2px solid var(--bith-accent, #F6AD55);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
    background: linear-gradient(to bottom, var(--surface, #ffffff), rgba(246, 173, 85, 0.05));
}

.skin-countdown:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px -10px rgba(246, 173, 85, 0.3);
}

.skin-countdown .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-countdown .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.countdown-bar {
    background: linear-gradient(135deg, var(--bith-accent, #F6AD55), var(--color-flash, #DD6B20));
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.countdown-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    white-space: nowrap;
}

.countdown-label i {
    animation: flame 0.5s ease-in-out infinite alternate;
}

@keyframes flame {
    to {
        transform: scale(1.2);
    }
}

.countdown-timer {
    display: flex;
    align-items: center;
    gap: 4px;
}

.countdown-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 32px;
}

.countdown-value {
    font-size: 1rem;
    font-weight: 800;
    color: white;
    font-variant-numeric: tabular-nums;
}

.countdown-text {
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
}

.countdown-separator {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    opacity: 0.7;
}

.btn-add-countdown {
    width: 100%;
    padding: 16px;
    margin-top: 15px;
    background: linear-gradient(135deg, var(--bith-accent, #F6AD55) 0%, var(--color-flash, #DD6B20) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-sm, 12px);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 6px 20px rgba(246, 173, 85, 0.45),
        0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.btn-add-countdown::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-add-countdown:hover::before {
    left: 100%;
}

.btn-add-countdown:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 28px rgba(246, 173, 85, 0.55),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

/* =============================================
   SKIN 8: Horizontal List (Landscape)
   ============================================= */
.skin-horizontal {
    display: flex;
    flex-direction: row;
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
    border-radius: var(--radius, 20px);
    overflow: hidden;
}

.skin-horizontal:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg, 0 10px 30px -10px rgba(79, 209, 197, 0.2));
}

.skin-horizontal .product-image-wrapper {
    width: 30%;
    min-width: 200px;
    aspect-ratio: 1 / 1;
    flex-shrink: 0;
}

.skin-horizontal .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow, 0.5s ease);
}

.skin-horizontal:hover .product-image {
    transform: scale(1.05);
}

.product-details {
    flex: 1;
    padding: 25px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.product-meta .product-category {
    margin-bottom: 0;
}

.product-sku {
    font-size: 0.7rem;
    color: var(--bith-text-muted, #718096);
}

.skin-horizontal .product-title {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.product-excerpt {
    font-size: 0.85rem;
    color: var(--bith-text-muted, #718096);
    margin-bottom: 12px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid var(--bith-border-color, #E2E8F0);
}

.product-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-wishlist {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--surface-gray, #F7FAFC);
    border: none;
    color: var(--bith-text-muted, #718096);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast, 0.2s ease);
}

.btn-wishlist:hover {
    background: rgba(229, 62, 62, 0.1);
    color: var(--color-sale, #E53E3E);
}

.btn-add-horizontal {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bith-primary, #4FD1C5);
    color: white;
    border: none;
    border-radius: var(--radius-sm, 12px);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
}

.btn-add-horizontal:hover {
    background: var(--bith-primary-dark, #38B2AC);
    transform: translateY(-2px);
}

/* =============================================
   ADVANCED CREATIVE SKINS (9-16)
   ============================================= */

/* =============================================
   SKIN 9: 3D Tilt Parallax
   ============================================= */
.skin-3d-tilt {
    perspective: 1000px;
    background: var(--surface, #ffffff);
    box-shadow: var(--shadow-lg, 0 10px 30px -10px rgba(79, 209, 197, 0.2));
    transform-style: preserve-3d;
}

.skin-3d-tilt .tilt-inner {
    transform-style: preserve-3d;
    transition: transform 0.5s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

.skin-3d-tilt .product-image-wrapper {
    aspect-ratio: 1 / 1;
    transform: translateZ(20px);
    transition: transform 0.5s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

.skin-3d-tilt .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-add-3d {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px;
    margin-top: 15px;
    background: linear-gradient(135deg, var(--bith-primary, #4FD1C5), var(--bith-secondary, #6366F1));
    color: white;
    border: none;
    border-radius: var(--radius-sm, 12px);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-add-3d:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-add-3d i {
    transition: transform var(--transition-fast, 0.2s ease);
}

.btn-add-3d:hover i {
    transform: translateX(5px);
}

/* =============================================
   SKIN 10: Neon Cyberpunk
   ============================================= */
.skin-neon {
    position: relative;
    background: linear-gradient(145deg, #12121a, #1a1a2e);
    border: 1px solid rgba(0, 255, 255, 0.1);
    overflow: visible;
}

.skin-neon:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.3), 0 0 80px rgba(255, 0, 255, 0.2);
}

.skin-neon .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-neon .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.8);
    transition: all 0.4s ease;
}

.skin-neon:hover .product-image {
    filter: saturate(1.2) brightness(1.1);
}

.skin-neon .product-info {
    background: rgba(10, 10, 15, 0.9);
}

.skin-neon .product-title {
    color: #fff !important;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.skin-neon .stars i {
    color: #ff00ff !important;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

.skin-neon .price-sale,
.skin-neon .price-current {
    color: #00ffff !important;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
}

.btn-add-neon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px;
    margin-top: 15px;
    background: transparent;
    color: #00ffff;
    border: 2px solid #00ffff;
    border-radius: var(--radius-sm, 12px);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2), inset 0 0 15px rgba(0, 255, 255, 0.1);
}

.btn-add-neon:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.4), inset 0 0 30px rgba(0, 255, 255, 0.2);
    transform: scale(1.02);
}

/* =============================================
   SKIN 11: Magazine Editorial
   ============================================= */
.skin-editorial {
    display: flex;
    flex-direction: column;
    background: transparent;
    box-shadow: none;
    overflow: visible;
}

.editorial-image {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    border-radius: 0;
}

.editorial-image .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: all 0.8s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

.skin-editorial:hover .editorial-image .product-image {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.editorial-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
}

.editorial-issue {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--bith-text-muted, #718096);
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.editorial-content {
    padding: 30px 0;
}

.editorial-category {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--bith-text-muted, #718096);
    margin-bottom: 15px;
}

.editorial-title {
    font-family: Georgia, serif;
    font-size: 1.8rem !important;
    font-weight: 400 !important;
    line-height: 1.2 !important;
    letter-spacing: -0.02em;
    margin-bottom: 15px !important;
}

.editorial-quote {
    font-style: italic;
    font-size: 0.9rem;
    color: var(--bith-text-muted, #718096);
    margin-bottom: 25px;
}

.editorial-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--bith-border-color, #E2E8F0);
}

.btn-editorial {
    padding: 10px 25px;
    background: transparent;
    color: var(--bith-heading-color, #1A202C);
    border: 1px solid var(--bith-heading-color, #1A202C);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
}

.btn-editorial:hover {
    background: var(--bith-heading-color, #1A202C);
    color: white;
}

/* =============================================
   SKIN 12: Polaroid Stack
   ============================================= */
.skin-polaroid {
    position: relative;
    background: transparent;
    box-shadow: none;
    transform: rotate(var(--rotation, 0deg));
    transition: transform 0.4s var(--ease-bounce, cubic-bezier(0.175, 0.885, 0.32, 1.275));
}

.skin-polaroid:hover {
    transform: rotate(0deg) scale(1.05);
    z-index: 10;
}

.polaroid-frame {
    background: white;
    padding: 12px 12px 50px 12px;
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.4s ease;
}

.skin-polaroid:hover .polaroid-frame {
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.25);
}

.polaroid-image {
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.polaroid-image .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.9) contrast(1.05);
}

.polaroid-caption {
    padding: 15px 5px 0;
    text-align: center;
}

.polaroid-caption .product-title {
    font-family: 'Caveat', cursive, 'Inter';
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 8px;
}

.btn-polaroid {
    position: absolute;
    bottom: -15px;
    right: -15px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bith-primary, #4FD1C5);
    color: white;
    border: 4px solid white;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(79, 209, 197, 0.4);
    transition: all var(--transition-fast, 0.2s ease);
    opacity: 0;
    transform: scale(0.8);
}

.skin-polaroid:hover .btn-polaroid {
    opacity: 1;
    transform: scale(1);
}

.btn-polaroid:hover {
    background: var(--bith-primary-dark, #38B2AC);
    transform: scale(1.1) !important;
}

/* =============================================
   SKIN 13: Split Reveal
   ============================================= */
.skin-split {
    aspect-ratio: 3 / 4;
    overflow: hidden;
    cursor: pointer;
}

.split-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.split-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    text-align: center;
    opacity: 0;
    transition: opacity 0.4s ease 0.2s;
    z-index: 10;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
}

.skin-split:hover .split-content {
    opacity: 1;
}

.split-content .product-badge {
    position: relative;
    top: auto;
    left: auto;
    margin-bottom: 15px;
}

.split-content .product-title {
    color: white;
    font-size: 1.3rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.split-content .product-price .price-sale,
.split-content .product-price .price-current {
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.split-content .product-price .price-regular {
    color: rgba(255, 255, 255, 0.7);
}

.btn-split {
    width: 60px;
    height: 60px;
    margin-top: 20px;
    border-radius: 50%;
    background: var(--bith-primary, #4FD1C5);
    color: white;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast, 0.2s ease);
    box-shadow: 0 4px 20px rgba(79, 209, 197, 0.5);
}

.btn-split:hover {
    background: white;
    color: var(--bith-primary, #4FD1C5);
    transform: scale(1.1);
}

/* =============================================
   SKIN 14: Holographic Shine
   ============================================= */
.skin-holographic {
    position: relative;
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0, 0, 0, 0.1));
    overflow: hidden;
}

.skin-holographic:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl, 0 20px 40px -15px rgba(79, 209, 197, 0.25));
}

.holo-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(255, 0, 0, 0.1) 0%,
            rgba(255, 154, 0, 0.1) 10%,
            rgba(208, 222, 33, 0.1) 20%,
            rgba(79, 220, 74, 0.1) 30%,
            rgba(63, 218, 216, 0.1) 40%,
            rgba(47, 201, 226, 0.1) 50%,
            rgba(28, 127, 238, 0.1) 60%,
            rgba(95, 21, 242, 0.1) 70%,
            rgba(186, 12, 248, 0.1) 80%,
            rgba(251, 7, 217, 0.1) 90%,
            rgba(255, 0, 0, 0.1) 100%);
    background-size: 200% 200%;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 5;
    mix-blend-mode: overlay;
}

.skin-holographic:hover .holo-overlay {
    opacity: 1;
}

.skin-holographic .product-image-wrapper {
    aspect-ratio: 1 / 1;
}

.skin-holographic .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-holo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px;
    margin-top: 15px;
    background: linear-gradient(135deg, #ff00ff, #00ffff);
    background-size: 200% 200%;
    color: white;
    border: none;
    border-radius: var(--radius-sm, 12px);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
}

.btn-holo:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 20px rgba(255, 0, 255, 0.4);
}

/* =============================================
   SKIN 15: Minimal Line Art
   ============================================= */
.skin-lineart {
    position: relative;
    background: transparent;
    box-shadow: none;
    padding: 10px;
    border: 2px solid transparent;
    transition: border-color 0.8s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

.skin-lineart:hover {
    border-color: var(--bith-primary, #4FD1C5);
}

.skin-lineart .product-image-wrapper {
    aspect-ratio: 1 / 1;
    background: var(--surface-gray, #F7FAFC);
    margin-bottom: 15px;
}

.skin-lineart .product-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    transition: transform var(--transition-slow, 0.5s ease);
}

.skin-lineart:hover .product-image {
    transform: scale(1.05);
}

.skin-lineart .product-info {
    padding: 0 10px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.skin-lineart .product-title {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.skin-lineart .product-price {
    gap: 8px;
}

.skin-lineart .product-price .price-sale,
.skin-lineart .product-price .price-current {
    font-size: 1rem;
}

.btn-lineart {
    margin-left: auto;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--bith-heading-color, #1A202C);
    border: 2px solid var(--bith-heading-color, #1A202C);
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 300;
    cursor: pointer;
    transition: all var(--transition-fast, 0.2s ease);
}

.btn-lineart:hover {
    background: var(--bith-heading-color, #1A202C);
    color: white;
    transform: rotate(90deg);
}

/* =============================================
   SKIN 16: Morph Blob
   ============================================= */
.skin-blob {
    position: relative;
    background: transparent;
    box-shadow: none;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blob-shape {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blob-svg {
    width: 90%;
    height: 90%;
    transition: transform 0.5s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

.blob-path {
    fill: var(--bith-primary-light, #81E6D9);
    opacity: 0.3;
    transition: all 0.8s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}

.skin-blob:hover .blob-path {
    fill: var(--bith-primary, #4FD1C5);
    opacity: 0.2;
}

.blob-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 20px;
}

.blob-content .product-image-wrapper {
    width: 160px;
    height: 160px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.5s var(--ease-bounce, cubic-bezier(0.175, 0.885, 0.32, 1.275));
}

.skin-blob:hover .blob-content .product-image-wrapper {
    transform: scale(1.1);
}

.blob-content .product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blob-content .product-info {
    padding: 0;
}

.blob-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bith-primary, #4FD1C5);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 50px;
    margin-bottom: 10px;
}

.blob-content .product-title {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.blob-content .product-price {
    justify-content: center;
    margin-bottom: 15px;
}

.btn-blob {
    width: 50px;
    height: 50px;
    margin: 0 auto;
    border-radius: 50%;
    background: var(--bith-heading-color, #1A202C);
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast, 0.2s ease);
    box-shadow: 0 4px 15px rgba(26, 32, 44, 0.3);
}

.btn-blob:hover {
    background: var(--bith-primary, #4FD1C5);
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 6px 25px rgba(79, 209, 197, 0.4);
}

/* =============================================
   RESPONSIVE DESIGN
   ============================================= */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

    .skin-horizontal {
        flex-direction: column;
    }

    .skin-horizontal .product-image-wrapper {
        width: 100%;
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 768px) {
    .countdown-bar {
        flex-direction: column;
        text-align: center;
    }

    .product-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }

    .product-actions {
        justify-content: flex-end;
    }
}

@media (max-width: 576px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .products-grid,
    .products-list {
        gap: 20px;
    }

    .quickview-overlay button span {
        display: none;
    }

    .btn-quickview,
    .btn-add-quickview {
        width: 50px;
        height: 50px;
        padding: 0;
        border-radius: 50%;
        justify-content: center;
    }

    .skin-blob {
        min-height: 320px;
    }

    .blob-content .product-image-wrapper {
        width: 130px;
        height: 130px;
    }
}