/*!
 * Single Product Page Styles
 * Premium Professional Design
 * Version: 6.0 - Mobile Optimized
 */

/* ============================================
   Main Product Section
   ============================================ */
.single-product-section {
    padding: var(--spacing-20) 0 var(--spacing-16);
    background: linear-gradient(135deg, var(--color-bg-black) 0%, var(--color-bg-darker) 50%, var(--color-bg-black) 100%);
    min-height: calc(100vh - var(--header-height));
    position: relative;
    overflow: hidden;
}

.single-product-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.single-product-section .container {
    position: relative;
    z-index: 1;
}

.single-product-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-12);
    max-width: 1400px;
    margin: 0 auto;
    align-items: start;
}

/* ============================================
   Product Images Column
   ============================================ */
.product-images-column {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-6));
    height: fit-content;
    z-index: 10;
}

.product-main-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 3px solid rgba(212, 175, 55, 0.2);
    box-shadow: 
        0 25px 80px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(212, 175, 55, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: var(--spacing-6);
}

.product-main-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
    pointer-events: none;
}

.product-main-image:hover {
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 
        0 30px 100px rgba(212, 175, 55, 0.3),
        0 0 0 2px rgba(212, 175, 55, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}

.product-main-image:hover::before {
    opacity: 1;
}

.product-main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    image-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    position: relative;
    z-index: 0;
}

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

.product-main-image .no-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-gray);
    font-size: var(--font-size-xl);
}

.product-main-image .no-image-placeholder i {
    font-size: 4rem;
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

/* ============================================
   Product Thumbnails
   ============================================ */
.product-thumbnails {
    display: flex;
    gap: var(--spacing-4);
    overflow-x: auto;
    padding: var(--spacing-2);
    scrollbar-width: thin;
    scrollbar-color: var(--color-gold) rgba(255, 255, 255, 0.1);
}

.product-thumbnails::-webkit-scrollbar {
    height: 6px;
}

.product-thumbnails::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
}

.product-thumbnails::-webkit-scrollbar-thumb {
    background: var(--color-gold);
    border-radius: var(--radius-full);
}

.thumbnail-item {
    position: relative;
    flex: 0 0 100px;
    width: 100px;
    height: 100px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.1);
    background: var(--color-bg-dark);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.thumbnail-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    transition: border-color 0.3s ease;
    z-index: 2;
    pointer-events: none;
}

.thumbnail-item:hover {
    transform: translateY(-4px) scale(1.05);
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.4);
}

.thumbnail-item:hover::before {
    border-color: var(--color-gold);
}

.thumbnail-item.active {
    border-color: var(--color-gold);
    box-shadow: 
        0 8px 28px rgba(212, 175, 55, 0.6),
        inset 0 0 0 2px rgba(212, 175, 55, 0.3);
    transform: scale(1.08);
}

.thumbnail-item.active::before {
    border-color: var(--color-gold);
    box-shadow: inset 0 0 0 2px rgba(212, 175, 55, 0.5);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    pointer-events: none;
    image-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: transform 0.4s ease;
}

.thumbnail-item:hover img {
    transform: scale(1.1);
}

/* ============================================
   Product Details Column
   ============================================ */
.product-details-column {
    position: relative;
    color: var(--color-text-white);
    padding: var(--spacing-12);
    background: linear-gradient(135deg, rgba(20, 20, 20, 0.95) 0%, rgba(10, 10, 10, 0.98) 100%);
    border-radius: var(--radius-2xl);
    border: 2px solid rgba(212, 175, 55, 0.15);
    box-shadow: 
        0 25px 80px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
}

.product-details-column::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-gold), var(--color-gold-light), var(--color-gold), transparent);
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
}

.product-details-column::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.08) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Product Title */
.product-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-text-white);
    margin-bottom: var(--spacing-8);
    font-weight: var(--font-weight-black);
    line-height: 1.3;
    letter-spacing: -0.01em;
    position: relative;
    padding-bottom: var(--spacing-5);
    z-index: 1;
}

.product-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), transparent);
    border-radius: var(--radius-full);
}

/* Price Section */
.product-price-section {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-5);
    margin-bottom: var(--spacing-8);
    flex-wrap: wrap;
    padding: var(--spacing-6);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(212, 175, 55, 0.05) 100%);
    border-radius: var(--radius-xl);
    border: 2px solid rgba(212, 175, 55, 0.2);
    box-shadow: 
        0 8px 24px rgba(212, 175, 55, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

.current-price {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: var(--font-weight-black);
    color: var(--color-gold);
    text-shadow: 0 2px 12px rgba(212, 175, 55, 0.4);
    line-height: 1;
    letter-spacing: -0.02em;
}

.old-price {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--color-text-gray-dark);
    text-decoration: line-through;
    opacity: 0.7;
    font-weight: var(--font-weight-medium);
    position: relative;
}

.old-price::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-text-gray-dark);
    opacity: 0.8;
}

.discount-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: var(--color-text-white);
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-full);
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    font-weight: var(--font-weight-extrabold);
    box-shadow: 
        0 4px 16px rgba(231, 76, 60, 0.5),
        0 2px 8px rgba(231, 76, 60, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.discount-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.discount-badge:hover {
    transform: scale(1.08) translateY(-2px);
    box-shadow: 
        0 6px 24px rgba(231, 76, 60, 0.6),
        0 3px 12px rgba(231, 76, 60, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.discount-badge:hover::before {
    left: 100%;
}

/* Description */
.product-description {
    color: var(--color-text-gray-light);
    line-height: 1.9;
    margin-bottom: var(--spacing-10);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    padding: var(--spacing-6);
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-xl);
    border-right: 4px solid var(--color-gold);
    position: relative;
    z-index: 1;
}

.product-description::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1), transparent);
    border-radius: 0 0 0 60px;
}

.product-description p {
    margin-bottom: var(--spacing-4);
}

.product-description p:last-child {
    margin-bottom: 0;
}

/* Option Groups */
.product-option-group {
    margin-bottom: var(--spacing-10);
    position: relative;
    z-index: 1;
}

.option-label {
    display: block;
    color: var(--color-text-white);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-5);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    padding-right: var(--spacing-2);
}

.option-label::after {
    content: ':';
    color: var(--color-gold);
    margin-right: var(--spacing-2);
}

/* Color Options */
.color-options-images {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.color-option-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.color-option-image .color-image-preview,
.color-option-image .color-image-placeholder {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.15);
    background: var(--color-bg-dark);
    transition: all 0.4s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.color-option-image .color-image-preview {
    object-fit: cover;
    object-position: center;
}

.color-option-image .color-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-gray);
    font-size: var(--font-size-xl);
}

.color-option-image .color-name {
    font-size: var(--font-size-sm);
    color: var(--color-text-gray-light);
    font-weight: var(--font-weight-medium);
    text-align: center;
    transition: color 0.3s ease;
}

.color-option-image:hover .color-image-preview,
.color-option-image:hover .color-image-placeholder {
    border-color: rgba(212, 175, 55, 0.5);
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.4);
}

.color-option-image:hover .color-name {
    color: var(--color-gold);
}

.color-option-image.selected .color-image-preview,
.color-option-image.selected .color-image-placeholder {
    border-color: var(--color-gold);
    box-shadow: 
        0 8px 24px rgba(212, 175, 55, 0.6),
        inset 0 0 0 2px rgba(212, 175, 55, 0.3);
    transform: scale(1.1);
}

.color-option-image.selected .color-name {
    color: var(--color-gold);
    font-weight: var(--font-weight-bold);
}

/* Size Options */
.size-options {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.size-option {
    min-width: 60px;
    padding: var(--spacing-4) var(--spacing-6);
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    color: var(--color-text-white);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.size-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.size-option:hover {
    border-color: rgba(212, 175, 55, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
}

.size-option:hover::before {
    opacity: 1;
}

.size-option.selected {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
    border-color: var(--color-gold);
    color: var(--color-bg-black);
    box-shadow: 
        0 8px 24px rgba(212, 175, 55, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transform: translateY(-3px) scale(1.05);
    font-weight: var(--font-weight-bold);
}

.size-option.selected::before {
    opacity: 0;
}

/* Quantity Selector */
.quantity-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    max-width: 200px;
}

.qty-btn {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: var(--color-bg-black);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 4px 12px rgba(212, 175, 55, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.qty-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.qty-btn:active::before {
    width: 200px;
    height: 200px;
}

.qty-btn:hover {
    background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 100%);
    transform: translateY(-2px);
    box-shadow: 
        0 6px 16px rgba(212, 175, 55, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.qty-btn:active {
    transform: translateY(0);
}

.qty-input {
    flex: 1;
    height: 48px;
    text-align: center;
    border: 2px solid rgba(212, 175, 55, 0.2);
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
    color: var(--color-text-white);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.qty-input:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 
        0 0 0 4px rgba(212, 175, 55, 0.15),
        0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Action Buttons */
.product-actions {
    margin-top: var(--spacing-12);
    margin-bottom: var(--spacing-10);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    position: relative;
    z-index: 1;
}

.product-actions .btn {
    width: 100%;
    padding: var(--spacing-5) var(--spacing-8);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    font-weight: var(--font-weight-bold);
    min-height: 56px;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-actions .btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.product-actions .btn:hover::before {
    width: 400px;
    height: 400px;
}

/* Product Meta */
.product-meta {
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-10);
    border-top: 2px solid rgba(212, 175, 55, 0.2);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, transparent 100%);
    padding: var(--spacing-10);
    border-radius: var(--radius-xl);
    position: relative;
    z-index: 1;
}

.product-meta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-5);
    color: var(--color-text-gray-light);
    font-size: var(--font-size-base);
}

.meta-item:last-child {
    margin-bottom: 0;
}

.meta-item i {
    color: var(--color-gold);
    font-size: var(--font-size-xl);
    width: 24px;
    text-align: center;
}

/* ============================================
   Related Products Section
   ============================================ */
.related-products-section {
    padding: var(--spacing-20) 0;
    background: linear-gradient(180deg, var(--color-bg-darker) 0%, var(--color-bg-black) 100%);
    position: relative;
}

.related-products-section .section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.related-products-section .section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-6);
}

.related-products-section .section-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
}

.products-grid-related {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-12);
}

.products-grid-related .product-card {
    background: linear-gradient(180deg, var(--color-bg-card) 0%, var(--color-bg-dark) 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(212, 175, 55, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    cursor: pointer;
    will-change: transform;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    width: 100%;
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

.products-grid-related .product-card:hover {
    transform: translateY(-16px) scale(1.01);
    box-shadow: 
        0 20px 60px rgba(212, 175, 55, 0.25),
        0 0 0 2px rgba(212, 175, 55, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border-color: rgba(212, 175, 55, 0.3);
}

.products-grid-related .product-image {
    position: relative;
    width: 100%;
    height: 450px;
    background: linear-gradient(135deg, var(--color-bg-darker) 0%, var(--color-bg-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    flex-shrink: 0;
}

.products-grid-related .product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    image-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    filter: brightness(1) contrast(1.05);
}

.products-grid-related .product-card:hover .product-image img {
    transform: scale(1.05);
    filter: brightness(1.05) contrast(1.1);
}

.products-grid-related .product-badge {
    position: absolute;
    top: var(--spacing-5);
    right: var(--spacing-5);
    z-index: 10;
    opacity: 1 !important;
}

.products-grid-related .product-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    display: flex;
    gap: var(--spacing-4);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 5;
    flex-direction: column;
    width: 85%;
    max-width: 260px;
    pointer-events: none;
    background: transparent !important;
    backdrop-filter: none !important;
}

.products-grid-related .product-card:hover .product-overlay {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    pointer-events: all;
}

.products-grid-related .btn-quick-view,
.products-grid-related .btn-add-cart {
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    font-weight: var(--font-weight-extrabold);
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-size: var(--font-size-base);
    min-height: 48px;
    min-width: 140px;
    text-align: center;
    position: relative;
    z-index: 6;
    box-shadow: 
        0 4px 16px rgba(212, 175, 55, 0.5),
        0 2px 8px rgba(212, 175, 55, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
}

.products-grid-related .btn-quick-view {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2) 0%, rgba(212, 175, 55, 0.1) 100%);
    border: 2px solid var(--color-gold);
    color: var(--color-gold);
}

.products-grid-related .btn-add-cart {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
    color: var(--color-bg-black);
}

.products-grid-related .btn-quick-view:hover,
.products-grid-related .btn-add-cart:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 8px 24px rgba(212, 175, 55, 0.6),
        0 4px 12px rgba(212, 175, 55, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.products-grid-related .product-info {
    padding: var(--spacing-6) var(--spacing-6) var(--spacing-8);
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, var(--color-bg-card) 100%);
    position: relative;
    z-index: 3;
    border-top: 1px solid rgba(212, 175, 55, 0.15);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 140px;
}

.products-grid-related .product-title {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-5);
    color: var(--color-text-white);
    line-height: 1.4;
    min-height: 3em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.products-grid-related .product-title a {
    color: var(--color-text-white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.products-grid-related .product-title a:hover {
    color: var(--color-gold);
    text-shadow: 0 2px 12px rgba(212, 175, 55, 0.4);
}

.products-grid-related .product-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.products-grid-related .price-current {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: var(--font-weight-black);
    color: var(--color-gold);
    letter-spacing: -0.02em;
    text-shadow: 0 2px 12px rgba(212, 175, 55, 0.4);
    line-height: 1;
}

.products-grid-related .price-old {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-text-gray-dark);
    text-decoration: line-through;
    opacity: 0.7;
    font-weight: var(--font-weight-medium);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 968px) {
    .single-product-wrapper {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-8) !important;
        display: grid !important;
    }
    
    .product-images-column {
        position: relative !important;
        top: 0 !important;
        order: 1 !important;
    }
    
    .product-details-column {
        order: 2 !important;
    }
    
    .product-main-image {
        aspect-ratio: 1 / 1 !important;
    }
}

@media (max-width: 768px) {
    .single-product-section {
        padding: var(--spacing-6) 0 !important;
        min-height: auto !important;
    }
    
    .single-product-wrapper {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-6) !important;
        display: grid !important;
    }
    
    .product-images-column {
        position: relative !important;
        top: 0 !important;
        order: 1 !important;
        height: auto !important;
    }
    
    .product-details-column {
        order: 2 !important;
        padding: var(--spacing-6) !important;
        background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-dark) 100%) !important;
        border-radius: var(--radius-xl) !important;
        border: 1px solid rgba(212, 175, 55, 0.15) !important;
        box-shadow: 
            0 8px 32px rgba(0, 0, 0, 0.4),
            0 0 0 1px rgba(212, 175, 55, 0.1) !important;
    }
    
    .product-main-image {
        aspect-ratio: 1 / 1 !important;
        border-width: 2px !important;
        border-radius: var(--radius-xl) !important;
        margin-bottom: var(--spacing-4) !important;
        max-height: none !important;
        height: auto !important;
    }
    
    .product-main-image img {
        object-fit: contain !important;
        image-rendering: -webkit-optimize-contrast !important;
        filter: brightness(1) contrast(1.05) !important;
        width: 100% !important;
        height: 100% !important;
    }
    
    .product-thumbnails {
        gap: var(--spacing-2);
        overflow-x: auto;
        padding: var(--spacing-2) 0;
        scrollbar-width: thin;
        scrollbar-color: var(--color-gold) transparent;
    }
    
    .product-thumbnails::-webkit-scrollbar {
        height: 4px;
    }
    
    .product-thumbnails::-webkit-scrollbar-thumb {
        background: var(--color-gold);
        border-radius: var(--radius-full);
    }
    
    .thumbnail-item {
        flex: 0 0 70px;
        width: 70px;
        height: 70px;
        min-width: 70px;
    }
    
    .product-title {
        font-size: clamp(1.25rem, 5vw, 1.75rem) !important;
        font-weight: var(--font-weight-bold) !important;
        margin-bottom: var(--spacing-4) !important;
        line-height: 1.3 !important;
    }
    
    .product-price-section {
        padding: var(--spacing-4) !important;
        margin-bottom: var(--spacing-5) !important;
        border-radius: var(--radius-lg) !important;
    }
    
    .current-price {
        font-size: clamp(1.5rem, 5vw, 2rem) !important;
        font-weight: var(--font-weight-extrabold) !important;
    }
    
    .old-price {
        font-size: clamp(1rem, 3vw, 1.25rem) !important;
    }
    
    .discount-badge {
        font-size: var(--font-size-sm) !important;
        padding: var(--spacing-1) var(--spacing-4) !important;
    }
    
    .product-description {
        font-size: var(--font-size-sm) !important;
        line-height: 1.6 !important;
        padding: var(--spacing-4) !important;
        margin-bottom: var(--spacing-5) !important;
    }
    
    .product-option-group {
        margin-bottom: var(--spacing-5) !important;
    }
    
    .option-label {
        font-size: var(--font-size-sm) !important;
        margin-bottom: var(--spacing-3) !important;
        font-weight: var(--font-weight-semibold) !important;
    }
    
    .color-options-images {
        gap: var(--spacing-3) !important;
        flex-wrap: wrap !important;
        justify-content: flex-start !important;
    }
    
    .color-option-image {
        width: 60px !important;
        height: 60px !important;
        min-width: 60px !important;
        border-width: 2px !important;
    }
    
    .size-options {
        gap: var(--spacing-2) !important;
        flex-wrap: wrap !important;
    }
    
    .size-option {
        padding: var(--spacing-2) var(--spacing-4) !important;
        font-size: var(--font-size-sm) !important;
        min-width: 50px !important;
        min-height: 40px !important;
    }
    
    .quantity-selector {
        gap: var(--spacing-2) !important;
        margin-bottom: var(--spacing-5) !important;
    }
    
    .qty-button {
        width: 40px !important;
        height: 40px !important;
        font-size: var(--font-size-base) !important;
    }
    
    .qty-input {
        width: 70px !important;
        height: 40px !important;
        font-size: var(--font-size-base) !important;
    }
    
    .product-actions {
        margin-top: var(--spacing-6) !important;
        gap: var(--spacing-3) !important;
        flex-direction: column !important;
        display: flex !important;
    }
    
    .product-actions .btn {
        width: 100% !important;
        padding: var(--spacing-4) var(--spacing-6) !important;
        font-size: var(--font-size-base) !important;
        min-height: 48px !important;
        font-weight: var(--font-weight-semibold) !important;
    }
    
    .product-meta {
        margin-top: var(--spacing-6) !important;
        padding: var(--spacing-5) !important;
        border-radius: var(--radius-lg) !important;
    }
    
    .product-meta-item {
        font-size: var(--font-size-sm) !important;
        padding: var(--spacing-2) 0 !important;
    }
    
    .products-grid-related {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-4) !important;
    }
    
    .products-grid-related .product-image {
        height: 250px !important;
    }
}

@media (max-width: 480px) {
    .single-product-section {
        padding: var(--spacing-4) 0 !important;
    }
    
    .single-product-wrapper {
        gap: var(--spacing-4) !important;
    }
    
    .product-details-column {
        padding: var(--spacing-4) !important;
        border-radius: var(--radius-lg) !important;
    }
    
    .product-main-image {
        border-width: 1px !important;
        border-radius: var(--radius-lg) !important;
        margin-bottom: var(--spacing-3) !important;
    }
    
    .product-thumbnails {
        gap: var(--spacing-2) !important;
    }
    
    .thumbnail-item {
        flex: 0 0 60px !important;
        width: 60px !important;
        height: 60px !important;
        min-width: 60px !important;
    }
    
    .product-title {
        font-size: clamp(1.1rem, 6vw, 1.5rem) !important;
        margin-bottom: var(--spacing-3) !important;
    }
    
    .product-price-section {
        padding: var(--spacing-3) !important;
        margin-bottom: var(--spacing-4) !important;
    }
    
    .current-price {
        font-size: clamp(1.25rem, 6vw, 1.75rem) !important;
    }
    
    .old-price {
        font-size: var(--font-size-sm) !important;
    }
    
    .discount-badge {
        font-size: 0.7rem !important;
        padding: 3px var(--spacing-3) !important;
    }
    
    .product-description {
        font-size: 0.875rem !important;
        padding: var(--spacing-3) !important;
        margin-bottom: var(--spacing-4) !important;
    }
    
    .color-option-image {
        width: 55px !important;
        height: 55px !important;
        min-width: 55px !important;
    }
    
    .size-option {
        padding: var(--spacing-2) var(--spacing-3) !important;
        font-size: 0.8rem !important;
        min-width: 45px !important;
        min-height: 36px !important;
    }
    
    .qty-button {
        width: 36px !important;
        height: 36px !important;
        font-size: var(--font-size-sm) !important;
    }
    
    .qty-input {
        width: 60px !important;
        height: 36px !important;
        font-size: var(--font-size-sm) !important;
    }
    
    .product-actions {
        margin-top: var(--spacing-5) !important;
        gap: var(--spacing-2) !important;
        flex-direction: column !important;
    }
    
    .product-actions .btn {
        padding: var(--spacing-3) var(--spacing-5) !important;
        font-size: var(--font-size-sm) !important;
        min-height: 44px !important;
        width: 100% !important;
    }
    
    .product-meta {
        margin-top: var(--spacing-5) !important;
        padding: var(--spacing-4) !important;
    }
    
    .products-grid-related {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-3) !important;
    }
    
    .products-grid-related .product-image {
        height: 280px !important;
    }
}