/* Scrollbar Hide */
        .scrollbar-hide::-webkit-scrollbar { display: none; }
        .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
        
        /* Missing Color Variables */
        :root {
            --color-smoke: #E5E5E5;
            --color-snow-white: #FAFAFA;
            --color-silver-mist: #9CA3AF;
            --color-silver-glow: #F3F4F6;
            --color-success: #10B981;
            --color-info: #3B82F6;
            --color-warning: #F59E0B;
            --color-error: #EF4444;
        }
        
        /* Utility Classes */
        .smoke { color: var(--color-smoke); }
        .bg-smoke { background-color: var(--color-smoke); }
        .border-smoke { border-color: var(--color-smoke); }
        .text-silver-mist { color: var(--color-silver-mist); }
        .bg-silver-glow { background-color: var(--color-silver-glow); }
        .bg-snow-white { background-color: var(--color-snow-white); }
        .text-success { color: var(--color-success); }
        .text-info { color: var(--color-info); }
        .text-warning { color: var(--color-warning); }
        .text-error { color: var(--color-error); }
        .bg-success { background-color: var(--color-success); }
        .bg-info { background-color: var(--color-info); }
        .bg-warning { background-color: var(--color-warning); }
        .bg-error { background-color: var(--color-error); }
        
        /* Z-index Layers */
        .z-sticky { z-index: 100; }
        .z-fixed { z-index: 500; }
        .z-toast { z-index: 9999; }
        
        /* Layout - Converted from @apply */
        .container-custom {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        
        .section {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        @media (min-width: 1024px) {
            .section {
                padding-top: 4rem;
                padding-bottom: 4rem;
            }
        }
        
        /* Button Styles - Converted from @apply */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            background-color: #0A0A0A;
            color: white;
            font-weight: 500;
            letter-spacing: 0.025em;
            transition: all 0.2s;
            border: none;
            border-radius: 0.375rem;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary:hover {
            background-color: #1A1A1A;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .btn-primary:active {
            transform: scale(0.95);
        }
        
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border: 1px solid #1A1A1A;
            background-color: transparent;
            color: #0A0A0A;
            font-weight: 500;
            letter-spacing: 0.025em;
            transition: all 0.2s;
            border-radius: 0.375rem;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-secondary:hover {
            background-color: #F5F5F5;
        }
        .btn-secondary:active {
            transform: scale(0.95);
        }
        
        /* Product Card System - Converted from @apply */
        .product-card {
            position: relative;
            background-color: white;
            border: 1px solid #F5F5F5;
            border-radius: 0.5rem;
            overflow: hidden;
            transition: all 0.3s;
        }
        .product-card:hover {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }
        
        .product-image {
            aspect-ratio: 1 / 1;
            background-color: #F5F5F5;
            overflow: hidden;
            position: relative;
        }
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }
        .product-card:hover .product-image img {
            transform: scale(1.1);
        }
        
        .product-info {
            padding: 1rem;
        }
        
        .product-name {
            font-weight: 500;
            font-size: 0.875rem;
            line-height: 1.25rem;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s;
        }
        .product-card:hover .product-name {
            color: #A8A8A8;
        }
        
        .product-price {
            font-size: 1.125rem;
            line-height: 1.75rem;
            font-weight: 600;
            color: #0A0A0A;
        }
        
        /* Card Hover Effect - Converted from @apply */
        .card-hover {
            background-color: white;
            border: 1px solid #F5F5F5;
            border-radius: 0.5rem;
            transition: all 0.3s;
        }
        .card-hover:hover {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }
        
        /* Badge System - Converted from @apply */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 0.125rem 0.625rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            line-height: 1rem;
            font-weight: 500;
        }
        .badge-success {
            background-color: #D1FAE5;
            color: #065F46;
        }
        .badge-info {
            background-color: #DBEAFE;
            color: #1E40AF;
        }
        .badge-warning {
            background-color: #FEF3C7;
            color: #92400E;
        }
        .badge-error {
            background-color: #FEE2E2;
            color: #991B1B;
        }
        
        /* Cart Badge - Converted from @apply */
        .cart-badge {
            position: absolute;
            top: -0.25rem;
            right: -0.25rem;
            background-color: var(--color-error);
            color: white;
            font-size: 10px;
            font-weight: 700;
            border-radius: 9999px;
            width: 1.25rem;
            height: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        /* Silver Price Indicator - Removed (now in header) */
        
        /* Input Styles - Converted from @apply */
        .input {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid #D4D4D4;
            border-radius: 0.375rem;
            transition: all 0.2s;
        }
        .input:focus {
            border-color: #0A0A0A;
            outline: none;
            box-shadow: 0 0 0 1px #0A0A0A;
        }
        
        /* ================================================================
           PREMIUM UI COMPONENTS - Loaded from /public/css/mikro-premium.css
           All component styles moved to external file for better performance
           ================================================================ */
        
        /* ============================================================
           ANIMATIONS & TRANSITIONS
           ============================================================ */
        @keyframes shimmer {
            0% { background-position: -1000px 0; }
            100% { background-position: 1000px 0; }
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }
        
        /* Smooth transitions for all interactive elements */
        a, button, .category-item, .product-card-ultra {
            -webkit-tap-highlight-color: transparent;
        }
        
        /* ============================================================
           PRODUCT LISTING PAGE - Advanced Filters & Grid
           ============================================================ */
        
        /* Breadcrumb Enhancement */
        .breadcrumbs {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        
        .breadcrumbs a:hover {
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        
        /* Page Header */
        .page-header {
            background: white;
            border-bottom: 1px solid #F5F5F5;
            padding: 2rem 0;
        }
        
        @media (min-width: 1024px) {
            .page-header {
                padding: 3rem 0;
            }
        }
        
        /* Sidebar Filter Panel */
        .filter-panel {
            background: #FAFAFA;
            border-radius: 0.75rem;
            padding: 1.5rem;
            position: sticky;
            top: 6rem;
        }
        
        .filter-section {
            margin-bottom: 2rem;
        }
        
        .filter-section:last-child {
            margin-bottom: 0;
        }
        
        .filter-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #0A0A0A;
            margin-bottom: 1rem;
        }
        
        .filter-option {
            display: block;
            padding: 0.5rem 0.75rem;
            font-size: 0.875rem;
            color: #2D2D2D;
            border-radius: 0.375rem;
            transition: all 200ms;
        }
        
        .filter-option:hover {
            background: white;
            color: #0A0A0A;
        }
        
        .filter-option.active {
            background: white;
            color: #0A0A0A;
            font-weight: 500;
        }
        
        /* Sort Dropdown */
        .sort-dropdown {
            position: relative;
            display: inline-block;
        }
        
        .sort-button {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: white;
            border: 1px solid #E5E5E5;
            border-radius: 0.375rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: #0A0A0A;
            cursor: pointer;
            transition: all 200ms;
        }
        
        .sort-button:hover {
            border-color: #CCCCCC;
            background: #FAFAFA;
        }
        
        /* ============================================================
           PRODUCT DETAIL PAGE - Premium Layout
           ============================================================ */
        
        /* Image Gallery */
        .product-gallery {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        
        .main-product-image {
            aspect-ratio: 1 / 1;
            background: #FAFAFA;
            border-radius: 0.75rem;
            overflow: hidden;
            position: relative;
        }
        
        .main-product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .image-thumbnails {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0.5rem;
        }
        
        .thumbnail-button {
            aspect-ratio: 1 / 1;
            background: #FAFAFA;
            border-radius: 0.375rem;
            overflow: hidden;
            cursor: pointer;
            transition: all 200ms;
            border: 2px solid transparent;
        }
        
        .thumbnail-button:hover {
            border-color: #A8A8A8;
        }
        
        .thumbnail-button.active {
            border-color: #0A0A0A;
        }
        
        .thumbnail-button img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* Product Info Section */
        .product-detail-info {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        
        .product-detail-title {
            font-size: 1.875rem;
            line-height: 1.2;
            font-weight: 600;
            color: #0A0A0A;
            letter-spacing: -0.01em;
        }
        
        @media (min-width: 1024px) {
            .product-detail-title {
                font-size: 2.25rem;
            }
        }
        
        .product-price-box {
            padding: 1.5rem;
            background: #FAFAFA;
            border-radius: 0.75rem;
            border: 1px solid #F5F5F5;
        }
        
        .product-price-main {
            font-size: 2rem;
            font-weight: 700;
            color: #0A0A0A;
            font-variant-numeric: tabular-nums;
        }
        
        @media (min-width: 1024px) {
            .product-price-main {
                font-size: 2.5rem;
            }
        }
        
        .product-price-info {
            font-size: 0.75rem;
            color: #9CA3AF;
            margin-top: 0.25rem;
        }
        
        /* Variation Selector */
        .variation-selector {
            margin: 1.5rem 0;
        }
        
        .variation-label {
            font-size: 0.875rem;
            font-weight: 600;
            color: #0A0A0A;
            margin-bottom: 0.75rem;
            display: block;
        }
        
        .variation-options {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        
        .variation-option {
            padding: 0.625rem 1.25rem;
            background: white;
            border: 1.5px solid #E5E5E5;
            border-radius: 0.5rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: #2D2D2D;
            cursor: pointer;
            transition: all 200ms;
        }
        
        .variation-option:hover {
            border-color: #A8A8A8;
            background: #FAFAFA;
        }
        
        .variation-option.active {
            border-color: #0A0A0A;
            background: #0A0A0A;
            color: white;
        }
        
        .variation-option.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            text-decoration: line-through;
        }
        
        /* Quantity Selector */
        .quantity-selector {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .quantity-controls {
            display: flex;
            align-items: center;
            border: 1.5px solid #E5E5E5;
            border-radius: 0.5rem;
            overflow: hidden;
        }
        
        .quantity-btn {
            width: 48px;
            height: 48px;
            background: white;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 200ms;
            color: #0A0A0A;
            font-size: 1.125rem;
        }
        
        .quantity-btn:hover {
            background: #FAFAFA;
        }
        
        .quantity-btn:disabled {
            opacity: 0.3;
            cursor: not-allowed;
        }
        
        .quantity-input {
            width: 60px;
            height: 48px;
            text-align: center;
            border: none;
            border-left: 1px solid #E5E5E5;
            border-right: 1px solid #E5E5E5;
            font-size: 1rem;
            font-weight: 600;
            color: #0A0A0A;
            font-variant-numeric: tabular-nums;
        }
        
        .quantity-input:focus {
            outline: none;
        }
        
        /* Add to Cart Button - Large */
        .btn-add-to-cart {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            width: 100%;
            padding: 1rem 2rem;
            background: #0A0A0A;
            color: white;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.025em;
            border-radius: 0.75rem;
            border: none;
            cursor: pointer;
            transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .btn-add-to-cart:hover:not(:disabled) {
            background: #1A1A1A;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transform: translateY(-1px);
        }
        
        .btn-add-to-cart:active:not(:disabled) {
            transform: translateY(0);
        }
        
        .btn-add-to-cart:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
        
        .btn-add-to-cart i {
            font-size: 1.125rem;
        }
        
        /* Product Meta Info */
        .product-meta {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            padding: 1.25rem;
            background: #FAFAFA;
            border-radius: 0.5rem;
            margin-top: 1.5rem;
        }
        
        .product-meta-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.875rem;
        }
        
        .product-meta-item i {
            width: 20px;
            color: #A8A8A8;
        }
        
        .product-meta-label {
            color: #9CA3AF;
        }
        
        .product-meta-value {
            color: #0A0A0A;
            font-weight: 500;
            margin-left: auto;
        }
        
        /* Product Tabs */
        .product-tabs {
            margin-top: 3rem;
            border-top: 1px solid #F5F5F5;
            padding-top: 2rem;
        }
        
        .tab-buttons {
            display: flex;
            gap: 2rem;
            border-bottom: 2px solid #F5F5F5;
            margin-bottom: 2rem;
        }
        
        .tab-button {
            padding: 0.75rem 0;
            font-size: 1rem;
            font-weight: 500;
            color: #9CA3AF;
            background: none;
            border: none;
            border-bottom: 2px solid transparent;
            margin-bottom: -2px;
            cursor: pointer;
            transition: all 200ms;
        }
        
        .tab-button:hover {
            color: #2D2D2D;
        }
        
        .tab-button.active {
            color: #0A0A0A;
            border-bottom-color: #0A0A0A;
        }
        
        .tab-content {
            font-size: 0.9375rem;
            line-height: 1.7;
            color: #2D2D2D;
        }
        
        /* ============================================================
           CART PAGE - Clean & Organized
           ============================================================ */
        
        .cart-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        
        @media (min-width: 1024px) {
            .cart-container {
                grid-template-columns: 2fr 1fr;
            }
        }
        
        .cart-item {
            display: grid;
            grid-template-columns: 100px 1fr;
            gap: 1rem;
            padding: 1.5rem;
            background: white;
            border: 1px solid #F5F5F5;
            border-radius: 0.75rem;
            transition: all 200ms;
        }
        
        @media (min-width: 640px) {
            .cart-item {
                grid-template-columns: 120px 1fr auto;
                gap: 1.5rem;
            }
        }
        
        .cart-item:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        
        .cart-item-image {
            aspect-ratio: 1 / 1;
            background: #FAFAFA;
            border-radius: 0.5rem;
            overflow: hidden;
        }
        
        .cart-item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .cart-item-details {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .cart-item-name {
            font-size: 1rem;
            font-weight: 500;
            color: #0A0A0A;
            line-height: 1.4;
        }
        
        .cart-item-meta {
            font-size: 0.8125rem;
            color: #9CA3AF;
        }
        
        .cart-item-price {
            font-size: 1.125rem;
            font-weight: 600;
            color: #0A0A0A;
            font-variant-numeric: tabular-nums;
        }
        
        .cart-summary {
            position: sticky;
            top: 6rem;
            padding: 2rem;
            background: #FAFAFA;
            border-radius: 0.75rem;
            border: 1px solid #F5F5F5;
            height: fit-content;
        }
        
        .cart-summary-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #0A0A0A;
            margin-bottom: 1.5rem;
        }
        
        .cart-summary-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.75rem 0;
            border-bottom: 1px solid #E5E5E5;
        }
        
        .cart-summary-row:last-child {
            border-bottom: none;
            padding-top: 1rem;
            margin-top: 0.5rem;
        }
        
        .cart-summary-label {
            font-size: 0.875rem;
            color: #2D2D2D;
        }
        
        .cart-summary-value {
            font-size: 1rem;
            font-weight: 600;
            color: #0A0A0A;
            font-variant-numeric: tabular-nums;
        }
        
        .cart-summary-total .cart-summary-label {
            font-size: 1.125rem;
            font-weight: 600;
            color: #0A0A0A;
        }
        
        .cart-summary-total .cart-summary-value {
            font-size: 1.5rem;
        }
        
        /* ============================================================
           ACCOUNT PAGE - User Dashboard
           ============================================================ */
        
        .account-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        
        @media (min-width: 1024px) {
            .account-layout {
                grid-template-columns: 280px 1fr;
            }
        }
        
        .account-sidebar {
            background: #FAFAFA;
            border-radius: 0.75rem;
            padding: 1.5rem;
            height: fit-content;
            position: sticky;
            top: 6rem;
        }
        
        .account-menu-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            font-size: 0.9375rem;
            font-weight: 500;
            color: #2D2D2D;
            border-radius: 0.5rem;
            transition: all 200ms;
            text-decoration: none;
            margin-bottom: 0.25rem;
        }
        
        .account-menu-item:hover {
            background: white;
            color: #0A0A0A;
        }
        
        .account-menu-item.active {
            background: white;
            color: #0A0A0A;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        
        .account-menu-item i {
            width: 20px;
            text-align: center;
        }
        
        .order-card {
            background: white;
            border: 1px solid #F5F5F5;
            border-radius: 0.75rem;
            padding: 1.5rem;
            margin-bottom: 1rem;
            transition: all 200ms;
        }
        
        .order-card:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        
        .order-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #F5F5F5;
        }
        
        .order-number {
            font-size: 1rem;
            font-weight: 600;
            color: #0A0A0A;
        }
        
        .order-date {
            font-size: 0.8125rem;
            color: #9CA3AF;
        }
        
        .order-status-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.375rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.025em;
            text-transform: uppercase;
        }
        
        .order-status-pending {
            background: #FEF3C7;
            color: #92400E;
        }
        
        .order-status-processing {
            background: #DBEAFE;
            color: #1E40AF;
        }
        
        .order-status-completed {
            background: #D1FAE5;
            color: #065F46;
        }
        
        .order-status-cancelled {
            background: #FEE2E2;
            color: #991B1B;
        }
        
        /* ============================================================
           FORMS - Premium Input Styles
           ============================================================ */
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 500;
            color: #2D2D2D;
            margin-bottom: 0.5rem;
        }
        
        .form-label-required::after {
            content: ' *';
            color: #EF4444;
        }
        
        .form-input,
        .form-textarea,
        .form-select {
            width: 100%;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            color: #0A0A0A;
            background: white;
            border: 1.5px solid #E5E5E5;
            border-radius: 0.5rem;
            transition: all 200ms;
        }
        
        .form-input:focus,
        .form-textarea:focus,
        .form-select:focus {
            outline: none;
            border-color: #0A0A0A;
            box-shadow: 0 0 0 3px rgba(10, 10, 10, 0.1);
        }
        
        .form-input::placeholder,
        .form-textarea::placeholder {
            color: #9CA3AF;
        }
        
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        
        .form-error {
            display: block;
            margin-top: 0.375rem;
            font-size: 0.8125rem;
            color: #EF4444;
        }
        
        .form-help {
            display: block;
            margin-top: 0.375rem;
            font-size: 0.8125rem;
            color: #9CA3AF;
        }
        
        /* Checkbox & Radio Styles */
        .form-checkbox,
        .form-radio {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            cursor: pointer;
        }
        
        .form-checkbox input[type="checkbox"],
        .form-radio input[type="radio"] {
            width: 18px;
            height: 18px;
            border: 1.5px solid #E5E5E5;
            border-radius: 0.25rem;
            cursor: pointer;
            transition: all 200ms;
        }
        
        .form-radio input[type="radio"] {
            border-radius: 50%;
        }
        
        .form-checkbox input[type="checkbox"]:checked,
        .form-radio input[type="radio"]:checked {
            background-color: #0A0A0A;
            border-color: #0A0A0A;
        }
        
        /* ============================================================
           PAGINATION - Modern & Clean
           ============================================================ */
        
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 3rem;
        }
        
        .pagination-item {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 0.75rem;
            background: white;
            border: 1px solid #E5E5E5;
            border-radius: 0.375rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: #2D2D2D;
            text-decoration: none;
            transition: all 200ms;
        }
        
        .pagination-item:hover:not(.active):not(.disabled) {
            background: #FAFAFA;
            border-color: #CCCCCC;
        }
        
        .pagination-item.active {
            background: #0A0A0A;
            border-color: #0A0A0A;
            color: white;
        }
        
        .pagination-item.disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }
        
        /* ============================================================
           MODAL - Overlay & Content
           ============================================================ */
        
        .modal-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(4px);
            z-index: 9998;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1rem;
        }
        
        .modal-container {
            position: relative;
            width: 100%;
            max-width: 600px;
            max-height: 90vh;
            background: white;
            border-radius: 1rem;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
            z-index: 9999;
        }
        
        .modal-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem 2rem;
            border-bottom: 1px solid #F5F5F5;
        }
        
        .modal-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #0A0A0A;
        }
        
        .modal-close {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #F5F5F5;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            transition: all 200ms;
        }
        
        .modal-close:hover {
            background: #E5E5E5;
        }
        
        .modal-body {
            padding: 2rem;
            overflow-y: auto;
            max-height: calc(90vh - 140px);
        }
        
        .modal-footer {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 1rem;
            padding: 1.5rem 2rem;
            border-top: 1px solid #F5F5F5;
        }
        
        /* ============================================================
           LOADING STATES
           ============================================================ */
        
        .skeleton-loader {
            background: linear-gradient(
                90deg,
                #F5F5F5 0%,
                #ECECEC 50%,
                #F5F5F5 100%
            );
            background-size: 200% 100%;
            animation: shimmer 2s infinite;
            border-radius: 0.5rem;
        }
        
        .spinner {
            width: 24px;
            height: 24px;
            border: 3px solid #F5F5F5;
            border-top-color: #0A0A0A;
            border-radius: 50%;
            animation: spin 800ms linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        /* Button loading state */
        .btn-loading {
            position: relative;
            color: transparent !important;
            pointer-events: none;
        }
        
        .btn-loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 600ms linear infinite;
        }
        
        /* ============================================================
           RESPONSIVE UTILITIES
           ============================================================ */
        
        /* Mobile-first breakpoint helpers */
        @media (max-width: 639px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .product-detail-title {
                font-size: 1.5rem;
            }
        }
        
        /* ============================================================
           PRINT STYLES
           ============================================================ */
        
        @media print {
            .no-print,
            header,
            footer,
            .btn-add-to-cart,
            .slider-nav,
            .slider-dots {
                display: none !important;
            }
            
            body {
                background: white;
            }
            
            .product-card-ultra,
            .cart-item {
                box-shadow: none;
                border: 1px solid #E5E5E5;
            }
        }