/**
 * Dengo E-commerce Stylesheet
 * Mobile-first design based on provided screenshots
 * Brazilian Chocolate Artisan Store
 */

/* ===========================
   CSS VARIABLES (Theming Layer)
   =========================== */
:root {
    /* Colors - extracted from design screenshots */
    --color-primary: #FFC107;
    --color-primary-dark: #FFA000;
    --color-primary-light: #FFECB3;

    --color-secondary: #1a1a1a;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;

    --color-bg: #FFFFFF;
    --color-bg-light: #F5F5F5;
    --color-bg-gray: #EEEEEE;

    --color-border: #E0E0E0;
    --color-border-light: #F0F0F0;

    --color-success: #4CAF50;
    --color-error: #F44336;
    --color-warning: #FF9800;
    --color-info: #2196F3;

    /* Spacing scale (8px base) */
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-7: 32px;
    --spacing-8: 40px;
    --spacing-9: 48px;
    --spacing-10: 64px;

    /* Font sizes */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */

    /* Font weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --max-width: 1200px;
    --header-height: 64px;
}

/* ===========================
   RESET & BASE
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===========================
   LAYOUT
   =========================== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-4);
}

.logo {
    height: 32px;
    width: auto;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.cart-icon {
    position: relative;
    padding: var(--spacing-2);
}

.cart-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Footer */
.footer {
    background-color: var(--color-bg-light);
    padding: var(--spacing-8) 0 var(--spacing-6);
    margin-top: var(--spacing-10);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-3);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.footer-links a {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* ===========================
   COMPONENTS
   =========================== */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-bg-light);
}

.btn-full {
    width: 100%;
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

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

/* Cards */
.card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.card-content {
    padding: var(--spacing-4);
}

.card-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-price {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-top: var(--spacing-2);
}

.price-current {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.price-old {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.discount-badge {
    background-color: var(--color-error);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    padding: 2px var(--spacing-2);
    border-radius: var(--radius-sm);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-4);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-2);
}

.form-input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-light);
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-bg);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Horizontal Scroll Container */
.scroll-container {
    display: flex;
    gap: var(--spacing-4);
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--spacing-2) 0;
}

.scroll-container::-webkit-scrollbar {
    display: none;
}

.scroll-item {
    flex: 0 0 auto;
    width: 160px;
}

/* Quantity Stepper */
.quantity-stepper {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-1);
}

.quantity-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-secondary);
    transition: background-color var(--transition-fast);
}

.quantity-btn:hover {
    background-color: var(--color-primary-dark);
}

.quantity-value {
    min-width: 40px;
    text-align: center;
    font-weight: var(--font-weight-semibold);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

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

.badge-warning {
    background-color: var(--color-warning);
    color: white;
}

.badge-error {
    background-color: var(--color-error);
    color: white;
}

.badge-info {
    background-color: var(--color-info);
    color: white;
}

/* Alert */
.alert {
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-4);
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #A5D6A7;
}

.alert-error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #EF9A9A;
}

.alert-warning {
    background-color: #FFF3E0;
    color: #E65100;
    border: 1px solid #FFCC80;
}

.alert-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border: 1px solid #90CAF9;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    gap: var(--spacing-6);
}

.tab {
    padding: var(--spacing-3) var(--spacing-2);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.tab.active {
    color: var(--color-text);
    border-bottom-color: var(--color-primary);
}

/* ===========================
   PAGE SPECIFIC
   =========================== */

/* Hero Banner */
.hero-banner {
    width: 100%;
    aspect-ratio: 21 / 9;
    object-fit: cover;
    object-position: center center;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
}

/* Category Banner - more compact for category pages */
.category-banner {
    width: 100%;
    aspect-ratio: 4 / 1;
    object-fit: cover;
    object-position: center center;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
}

.category-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 3 / 2;
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-4);
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: white;
}

.category-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

/* Product Section */
.product-section {
    margin-bottom: var(--spacing-8);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

.section-link {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-weight: var(--font-weight-medium);
}

/* Product Detail */
.product-images {
    margin-bottom: var(--spacing-6);
}

.product-image-main {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
}

.product-image-thumbs {
    display: flex;
    gap: var(--spacing-3);
}

.product-image-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.product-image-thumb.active,
.product-image-thumb:hover {
    border-color: var(--color-primary);
}

.product-info {
    margin-bottom: var(--spacing-6);
}

.product-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-3);
}

.product-description {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
}

/* Shipping Calculator */
.shipping-calculator {
    background-color: var(--color-bg-light);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
}

.shipping-options {
    margin-top: var(--spacing-4);
}

.shipping-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.shipping-option:last-child {
    border-bottom: none;
}

.shipping-info {
    flex: 1;
}

.shipping-name {
    font-weight: var(--font-weight-semibold);
}

.shipping-eta {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.shipping-price {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
}

/* Cart */
.cart-items {
    margin-bottom: var(--spacing-6);
}

.cart-item {
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
}

.cart-item-price {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
}

.cart-item-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-remove {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

/* Cart Summary */
.cart-summary {
    background-color: var(--color-bg-light);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    position: sticky;
    bottom: var(--spacing-4);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.summary-row:last-of-type {
    border-bottom: none;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-2);
    margin: var(--spacing-6) 0;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.page-link:hover {
    background-color: var(--color-bg-light);
}

.page-link.active {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    border-color: var(--color-primary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-10) var(--spacing-4);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-4);
    opacity: 0.3;
}

.empty-state-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
}

.empty-state-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-6);
}

/* ===========================
   UTILITIES
   =========================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-bold { font-weight: var(--font-weight-bold); }

.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }

/* ===========================
   RESPONSIVE
   =========================== */
@media (min-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .category-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .scroll-item {
        width: 200px;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .scroll-item {
        width: 240px;
    }
}

/* ===========================
   E-COMMERCE IMPROVEMENTS
   =========================== */

/* Category Navigation Bar */
.category-nav {
    background-color: var(--color-secondary);
    padding: var(--spacing-3) 0;
}

.category-nav .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-6);
    overflow-x: auto;
    scrollbar-width: none;
}

.category-nav .container::-webkit-scrollbar {
    display: none;
}

.category-nav a {
    color: white;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.category-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
}

/* Hero Section with Overlay */
.hero-section {
    position: relative;
    margin-bottom: var(--spacing-8);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.hero-section .hero-banner {
    margin-bottom: 0;
    aspect-ratio: 3.5 / 1;
}

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-8) var(--spacing-6);
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
    color: white;
}

.hero-overlay h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
}

.hero-overlay p {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-4);
    opacity: 0.9;
}

@media (min-width: 768px) {
    .hero-section .hero-banner {
        aspect-ratio: 4 / 1;
    }

    .hero-overlay {
        padding: var(--spacing-10) var(--spacing-8);
    }

    .hero-overlay h1 {
        font-size: var(--font-size-3xl);
    }
}

/* Carousel with Navigation Buttons */
.carousel-wrapper {
    position: relative;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
    box-shadow: var(--shadow-md);
    opacity: 0;
}

.carousel-wrapper:hover .carousel-btn {
    opacity: 1;
}

.carousel-btn:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-secondary);
}

.carousel-btn-prev {
    left: -20px;
}

.carousel-btn-next {
    right: -20px;
}

/* Always show on mobile */
@media (max-width: 768px) {
    .carousel-btn {
        display: none;
    }
}

/* Product Card Improvements */
.product-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-card-link {
    display: block;
}

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

.product-card-image img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

/* Discount Badge on Card */
.product-card-badge {
    position: absolute;
    top: var(--spacing-3);
    left: var(--spacing-3);
    background-color: var(--color-error);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    z-index: 5;
}

.product-card-info {
    padding: var(--spacing-4);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--spacing-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.4em;
}

.product-card-prices {
    margin-top: auto;
}

.product-card-price-old {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.product-card-price-current {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

/* Add to Cart Button */
.product-card-actions {
    padding: 0 var(--spacing-4) var(--spacing-4);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

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

.btn-add-cart {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.btn-add-cart:hover {
    background-color: var(--color-primary-dark);
}

/* Always show button on mobile */
@media (max-width: 768px) {
    .product-card-actions {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Product Sections with Alternating Background */
.product-sections {
    margin-top: var(--spacing-6);
}

.product-section-alt {
    padding: var(--spacing-8) 0;
}

.product-section-alt:nth-child(even) {
    background-color: var(--color-bg-light);
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    padding-left: calc(50vw - 50%);
    padding-right: calc(50vw - 50%);
}

.product-section-alt .section-header {
    max-width: var(--max-width);
    margin: 0 auto var(--spacing-4);
    padding: 0 var(--spacing-4);
}

.product-section-alt .carousel-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Section Link Style */
.section-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-primary-dark);
    font-weight: var(--font-weight-semibold);
    transition: gap var(--transition-fast);
}

.section-link:hover {
    gap: var(--spacing-2);
    color: var(--color-primary-dark);
}

/* Promo Banner */
.promo-banner {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    text-align: center;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.promo-banner a {
    color: inherit;
    text-decoration: underline;
}

/* ===========================
   PRODUCT DETAIL PAGE
   =========================== */

/* Container principal */
.product-detail-container {
    padding-top: var(--spacing-6);
    padding-bottom: var(--spacing-10);
}

/* Breadcrumb estilizado */
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-6);
}

.breadcrumb a {
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-primary-dark);
}

.breadcrumb-separator {
    color: var(--color-text-muted);
}

.breadcrumb-current {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}

/* Grid responsivo - Mobile first (coluna única) */
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

/* Galeria de imagens */
.product-gallery {
    position: relative;
}

.product-gallery .product-image-main {
    width: 100%;
    max-height: 400px;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    background-color: var(--color-bg-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
}

.product-gallery .product-image-thumbs {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
}

.product-gallery .product-image-thumb {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.product-gallery .product-image-thumb:hover {
    transform: scale(1.05);
}

.product-gallery .product-image-thumb.active {
    border-color: var(--color-primary);
}

/* Coluna de informações */
.product-info-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.product-info-column .product-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: 1.3;
    color: var(--color-text);
}

/* Box de preço destacado */
.product-price-box {
    background: var(--color-bg-light);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
}

.product-price-box .discount-badge {
    display: inline-block;
    margin-bottom: var(--spacing-2);
}

.product-price-box .price-old {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    text-decoration: line-through;
    margin-bottom: var(--spacing-1);
}

.product-price-box .price-current {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.product-price-box .price-installments {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-2);
}

/* Descrição do produto */
.product-info-column .product-description {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: var(--font-size-base);
}

/* Separador de seção */
.product-section-divider {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-5);
    margin-top: var(--spacing-2);
}

/* Área de adicionar ao carrinho */
.product-add-cart {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.product-add-cart .quantity-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.product-add-cart .quantity-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
}

/* Sticky Add to Cart - Mobile */
.product-add-cart-mobile {
    display: none;
}

@media (max-width: 767px) {
    .product-add-cart-mobile {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--color-bg);
        padding: var(--spacing-4);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
        z-index: 50;
        border-top: 1px solid var(--color-border);
    }

    .product-add-cart-mobile .mobile-price {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: var(--spacing-3);
    }

    .product-add-cart-mobile .mobile-price-value {
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-bold);
    }

    /* Esconder o add to cart original em mobile */
    .product-add-cart {
        display: none;
    }

    /* Adicionar padding inferior para compensar o sticky */
    .product-detail-container {
        padding-bottom: 120px;
    }
}

/* Desktop Layout - 2 colunas */
@media (min-width: 768px) {
    .product-detail-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-8);
        align-items: start;
    }

    /* Galeria fixa à esquerda */
    .product-gallery {
        position: sticky;
        top: calc(var(--header-height) + 24px);
    }

    .product-gallery .product-image-main {
        max-height: 500px;
    }

    .product-gallery .product-image-thumb {
        width: 80px;
        height: 80px;
    }

    .product-gallery .product-image-thumbs {
        justify-content: flex-start;
    }

    /* Info column */
    .product-info-column .product-name {
        font-size: var(--font-size-3xl);
    }

    .product-price-box .price-current {
        font-size: 2.5rem;
    }

    /* Add to cart row layout */
    .product-add-cart {
        flex-direction: row;
        align-items: center;
    }

    .product-add-cart .btn {
        flex: 1;
    }
}

/* Large Desktop */
@media (min-width: 1024px) {
    .product-detail-grid {
        gap: var(--spacing-10);
    }

    .product-gallery .product-image-main {
        max-height: 550px;
    }
}

/* ===========================
   CART PAGE IMPROVEMENTS
   =========================== */

/* Cart Container */
.cart-container {
    padding-top: var(--spacing-6);
    padding-bottom: var(--spacing-10);
    overflow-x: hidden;
}

/* Page Title */
.cart-container .page-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
}

/* Cart Grid Layout */
.cart-page-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 1024px) {
    .cart-page-grid {
        grid-template-columns: 1fr 380px;
        gap: var(--spacing-8);
        align-items: start;
    }
}

/* Cart Main Section */
.cart-main {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

/* Improved Cart Items */
.cart-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.cart-item {
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: box-shadow var(--transition-fast);
}

.cart-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Larger Cart Item Images */
.cart-item-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .cart-item {
        padding: var(--spacing-5);
        gap: var(--spacing-5);
    }

    .cart-item-image {
        width: 120px;
        height: 120px;
    }
}

/* Cart Item Info */
.cart-item-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

.cart-item-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
    color: var(--color-text);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.cart-item-price {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-3);
}

.cart-item-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.cart-item-total {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

/* Remove Button */
.cart-remove {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    cursor: pointer;
    background: none;
    border: none;
    padding: var(--spacing-1) 0;
    transition: opacity var(--transition-fast);
}

.cart-remove:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* Shipping Section */
.shipping-section {
    background: var(--color-bg-light);
    padding: var(--spacing-5);
    border-radius: var(--radius-lg);
}

.shipping-section .section-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
}

.shipping-section .section-description {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
}

/* Shipping Options Cards */
.shipping-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.shipping-option-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.shipping-option-card:hover {
    border-color: var(--color-primary-light);
}

.shipping-option-card.selected {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 212, 175, 55), 0.1);
}

.shipping-option-card input[type="radio"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    accent-color: var(--color-primary);
}

.shipping-option-info {
    flex: 1;
}

.shipping-option-name {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

.shipping-option-eta {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.shipping-option-price {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
}

/* Cart Sidebar */
.cart-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

@media (min-width: 1024px) {
    .cart-sidebar {
        position: sticky;
        top: calc(var(--header-height, 80px) + var(--spacing-4));
    }
}

/* Cart Summary */
.cart-summary {
    background-color: var(--color-bg-light);
    padding: var(--spacing-5);
    border-radius: var(--radius-lg);
    /* Remove old sticky bottom */
    position: static;
    bottom: auto;
}

.cart-summary-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
    font-size: var(--font-size-base);
}

.summary-row:last-of-type {
    border-bottom: none;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-top: var(--spacing-3);
    padding-top: var(--spacing-3);
    border-top: 2px solid var(--color-border);
}

/* Cart Actions */
.cart-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    margin-top: var(--spacing-5);
}

.btn-checkout {
    padding: var(--spacing-4);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
}

.btn-continue-shopping {
    padding: var(--spacing-3);
}

/* Free Shipping Alert */
.free-shipping-alert {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light, #4a3728) 100%);
    color: white;
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    text-align: center;
}

.free-shipping-alert strong {
    display: block;
    margin-bottom: var(--spacing-2);
}

.free-shipping-progress {
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    margin-top: var(--spacing-3);
    overflow: hidden;
}

.free-shipping-progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* Quantity Stepper in Cart */
.cart-item .quantity-stepper {
    display: inline-flex;
    align-items: center;
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.cart-item .quantity-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    transition: background-color var(--transition-fast);
}

.cart-item .quantity-btn:hover {
    background-color: var(--color-border);
}

.cart-item .quantity-value {
    min-width: 40px;
    text-align: center;
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   CHECKOUT WIZARD
   ============================================ */

/* Checkout Container - Two Column Layout */
.checkout-container {
    padding-top: var(--spacing-6);
    padding-bottom: var(--spacing-8);
    overflow-x: hidden;
}

.checkout-page-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 1024px) {
    .checkout-page-grid {
        grid-template-columns: 1fr 380px;
        gap: var(--spacing-8);
        align-items: start;
    }
}

.checkout-main {
    min-width: 0;
}

.checkout-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

@media (min-width: 1024px) {
    .checkout-sidebar {
        position: sticky;
        top: calc(var(--header-height, 80px) + var(--spacing-4));
    }
}

/* Progress Bar */
.checkout-progress {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-8);
    position: relative;
    padding: 0 var(--spacing-4);
}

.checkout-progress::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}

.checkout-progress-line {
    position: absolute;
    top: 20px;
    left: 60px;
    height: 2px;
    background: var(--color-primary);
    z-index: 1;
    transition: width 0.4s ease;
    width: 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    position: relative;
    z-index: 2;
    flex: 1;
}

.progress-step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
}

.progress-step-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-weight: var(--font-weight-medium);
    transition: color 0.3s ease;
}

.progress-step.active .progress-step-number {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-secondary);
}

.progress-step.active .progress-step-label {
    color: var(--color-text);
    font-weight: var(--font-weight-semibold);
}

.progress-step.completed .progress-step-number {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
    color: white;
}

.progress-step.completed .progress-step-number::after {
    content: '✓';
}

.progress-step.completed .progress-step-number span {
    display: none;
}

/* Step Containers */
.checkout-step {
    display: none;
    animation: stepFadeIn 0.4s ease;
}

.checkout-step.active {
    display: block;
}

@keyframes stepFadeIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.checkout-step-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
    color: var(--color-text);
}

/* Form Improvements */
.checkout-form-card {
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
}

.checkout-form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
}

@media (min-width: 640px) {
    .checkout-form-row.two-cols {
        grid-template-columns: 1fr 1fr;
    }

    .checkout-form-row.number-complement {
        grid-template-columns: 1fr 2fr;
    }

    .checkout-form-row.city-state {
        grid-template-columns: 2fr 1fr;
    }
}

/* CEP Input with Button */
.cep-input-group {
    display: flex;
    gap: var(--spacing-2);
}

.cep-input-group .form-input {
    flex: 1;
}

.cep-input-group .btn {
    white-space: nowrap;
}

/* Shipping Info in Checkout */
.checkout-shipping-info {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.checkout-shipping-info-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
}

.checkout-shipping-info-name {
    font-weight: var(--font-weight-semibold);
}

.checkout-shipping-info-price {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.checkout-shipping-info-eta {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* Payment Methods */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.payment-method-card {
    position: relative;
    padding: var(--spacing-5);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--color-bg);
}

.payment-method-card:hover {
    border-color: var(--color-primary-light, #e8c547);
}

.payment-method-card.selected {
    border-color: var(--color-primary);
    background: rgba(212, 175, 55, 0.05);
}

.payment-method-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.payment-method-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.payment-method-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    font-size: 24px;
}

.payment-method-info {
    flex: 1;
}

.payment-method-name {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-1);
}

.payment-method-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.payment-method-radio {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.payment-method-card.selected .payment-method-radio {
    border-color: var(--color-primary);
}

.payment-method-card.selected .payment-method-radio::after {
    content: '';
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* Credit Card Form */
.card-form {
    margin-top: var(--spacing-5);
    padding-top: var(--spacing-5);
    border-top: 1px solid var(--color-border);
    display: none;
}

.card-form.visible {
    display: block;
    animation: stepFadeIn 0.3s ease;
}

.card-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

@media (max-width: 639px) {
    .card-form-row {
        grid-template-columns: 1fr;
    }
}

/* Navigation Buttons */
.checkout-nav {
    display: flex;
    gap: var(--spacing-3);
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-5);
    border-top: 1px solid var(--color-border);
}

.checkout-nav .btn {
    flex: 1;
}

.checkout-nav .btn-back {
    flex: 0 0 auto;
    min-width: 120px;
}

@media (min-width: 640px) {
    .checkout-nav {
        justify-content: flex-end;
    }

    .checkout-nav .btn {
        flex: 0 0 auto;
        min-width: 180px;
    }
}

/* Order Summary in Checkout */
.checkout-summary {
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
}

.checkout-summary-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
}

.checkout-summary-items {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: var(--spacing-4);
    padding-right: var(--spacing-2);
}

.checkout-summary-item {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-2) 0;
}

.checkout-summary-item + .checkout-summary-item {
    border-top: 1px solid var(--color-border);
}

.checkout-summary-item-image {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.checkout-summary-item-info {
    flex: 1;
    min-width: 0;
}

.checkout-summary-item-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.checkout-summary-item-qty {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
}

.checkout-summary-item-price {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
}

.checkout-summary-totals {
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--color-border);
}

.checkout-summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-2) 0;
    font-size: var(--font-size-sm);
}

.checkout-summary-row.total {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    padding-top: var(--spacing-3);
    margin-top: var(--spacing-2);
    border-top: 2px solid var(--color-border);
}

/* Form Validation Styles */
.form-input.error {
    border-color: var(--color-error);
}

.form-error-message {
    color: var(--color-error);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-1);
    display: none;
}

.form-group.has-error .form-error-message {
    display: block;
}

.form-group.has-error .form-input {
    border-color: var(--color-error);
}

/* Loading Overlay */
.checkout-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.checkout-loading.visible {
    opacity: 1;
    visibility: visible;
}

.checkout-loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.checkout-loading-text {
    margin-top: var(--spacing-4);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
}

/* Mobile Summary Bar (hidden on desktop) */
.checkout-mobile-summary {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-4);
    z-index: 100;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

@media (max-width: 1023px) {
    .checkout-mobile-summary {
        display: block;
    }

    .checkout-container {
        padding-bottom: 120px;
    }

    .checkout-sidebar {
        display: none;
    }
}

.checkout-mobile-summary-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
}

.checkout-mobile-summary-total {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
}

.checkout-mobile-summary-items {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* Checkout Mobile Fixes */
@media (max-width: 480px) {
    .checkout-progress {
        padding: 0;
    }

    .checkout-progress::before {
        left: 40px;
        right: 40px;
    }

    .checkout-progress-line {
        left: 40px;
    }

    .progress-step-number {
        width: 32px;
        height: 32px;
        font-size: var(--font-size-sm);
    }

    .progress-step-label {
        font-size: var(--font-size-xs);
    }
}

/* Shipping Section in Checkout */
.checkout-shipping-section {
    margin-top: var(--spacing-5);
    padding-top: var(--spacing-5);
    border-top: 1px solid var(--color-border);
}

.checkout-shipping-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-4);
}