/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-light: #f9fafb;
    --background-dark: #111827;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-4);
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    white-space: nowrap;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Hero section specific button styling for better readability */
.hero .btn-secondary {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.hero .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.25);
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-outline:hover {
    background-color: var(--text-primary);
    color: white;
    border-color: var(--text-primary);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
}

/* Header */
.header {
    background-color: var(--background);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-fast);
}

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

.logo a {
    text-decoration: none;
    color: var(--text-primary);
}

.logo h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
}

.logo span {
    color: var(--primary-color);
}

.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-8);
    margin: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: var(--radius-full);
}

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

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    padding: var(--spacing-2) var(--spacing-4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    width: 250px;
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.search-btn {
    position: absolute;
    right: var(--spacing-1);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-full);
    transition: color var(--transition-fast);
}

.search-btn:hover {
    color: var(--primary-color);
}

.cart-icon {
    position: relative;
    color: var(--text-secondary);
    font-size: var(--font-size-xl);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.cart-icon:hover {
    color: var(--primary-color);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--secondary-color);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-20) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
}

.hero-title span {
    color: var(--secondary-color);
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-8);
    color: white;
    line-height: 1.6;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.hero-image {
    text-align: center;
}

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transform: rotate(5deg);
    transition: transform var(--transition-slow);
}

.hero-img:hover {
    transform: rotate(0deg) scale(1.05);
}

/* Features Section */
.features {
    padding: var(--spacing-20) 0;
    background-color: var(--background-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-8);
    background-color: var(--background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-4);
    background-color: var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin: 0;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    color: var(--text-primary);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-12);
}

/* Featured Products Section */
.featured-products {
    padding: var(--spacing-20) 0;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(300px, 350px));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
    padding: var(--spacing-4);
    justify-content: center;
}

/* Products Page Specific Styles */
.products-section {
    padding: var(--spacing-16) 0;
    background: linear-gradient(180deg, var(--background-light) 0%, var(--background) 50%, var(--background-light) 100%);
    min-height: 100vh;
}

.products-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-12);
    align-items: start;
}

.filters-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.products-content {
    min-height: 600px;
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
    background: var(--background);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.products-info h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.products-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.sort-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.sort-control label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.sort-select {
    padding: var(--spacing-2) var(--spacing-4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--background);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.view-toggle {
    display: flex;
    gap: var(--spacing-1);
    background: var(--background-light);
    padding: var(--spacing-1);
    border-radius: var(--radius-lg);
}

.view-btn {
    padding: var(--spacing-2) var(--spacing-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.view-btn.active,
.view-btn:hover {
    background: var(--background);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.loading-products {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-20);
    color: var(--text-secondary);
}

.loading-products .spinner {
    margin-bottom: var(--spacing-4);
}

.no-products {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-20);
    text-align: center;
    color: var(--text-secondary);
}

.no-products i {
    margin-bottom: var(--spacing-6);
    color: var(--text-light);
}

.no-products h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-3);
}

.no-products p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin: 0;
}

/* Categories Section */
.categories {
    padding: var(--spacing-20) 0;
    background-color: var(--background-light);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-8);
}

.category-card {
    background-color: var(--background);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.category-image {
    height: 200px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.category-card:hover .category-image img {
    transform: scale(1.1);
}

.category-content {
    padding: var(--spacing-6);
}

.category-content h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.category-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
}

/* Newsletter Section */
.newsletter {
    padding: var(--spacing-16) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-8);
    align-items: center;
}

.newsletter-text h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-2);
}

.newsletter-text p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-3);
}

.newsletter-input {
    padding: var(--spacing-3) var(--spacing-4);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    min-width: 300px;
}

.newsletter-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
    background-color: var(--background-dark);
    color: white;
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-4);
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-4);
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-8);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

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

.payment-logo {
    height: 24px;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.payment-logo:hover {
    opacity: 1;
}

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.loading-spinner.active {
    opacity: 1;
    visibility: visible;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }

.hidden { display: none; }
.visible { display: block; }

/* Enhanced Cart Page Styles */
.cart-section {
    padding: var(--spacing-16) 0;
    background: linear-gradient(180deg, var(--background-light) 0%, var(--background) 50%, var(--background-light) 100%);
    min-height: 80vh;
}

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-12);
    align-items: start;
}

.cart-items {
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.cart-items::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--secondary-color) 100%);
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-8);
    padding-bottom: var(--spacing-6);
    border-bottom: 2px solid var(--border-light);
}

.cart-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cart-actions {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-6);
    border-top: 2px solid var(--border-light);
    text-align: center;
}

.cart-actions .btn {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
    font-weight: 600;
    background: linear-gradient(135deg, var(--text-secondary) 0%, var(--text-primary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.cart-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
}

/* Page Header Enhancements */
.page-header {
    padding: var(--spacing-12) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="cart-pattern" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23cart-pattern)"/></svg>');
    opacity: 0.3;
}

.page-header-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.page-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-4);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Recommended Products Section Enhancement */
.recommended-products {
    padding: var(--spacing-20) 0;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background) 100%);
}

.recommended-products .section-header {
    margin-bottom: var(--spacing-16);
}

.recommended-products .section-title {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Cart Item Animation Classes */
.cart-item-enter {
    animation: cartItemEnter 0.5s ease-out;
}

.cart-item-exit {
    animation: cartItemExit 0.3s ease-in forwards;
}

.cart-item-update {
    animation: cartItemUpdate 0.3s ease-out;
}

/* Quantity Change Animation */
.quantity-change {
    animation: quantityPulse 0.4s ease-out;
}

/* Loading State for Cart */
.cart-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-20);
    color: var(--text-secondary);
}

.cart-loading .spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-6);
}

.cart-loading h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.cart-loading p {
    color: var(--text-secondary);
    margin: 0;
}

/* Success/Error States */
.cart-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 2px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    margin: var(--spacing-4) 0;
    color: var(--accent-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    animation: slideInFromTop 0.5s ease-out;
}

.cart-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    border: 2px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    margin: var(--spacing-4) 0;
    color: #dc2626;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    animation: slideInFromTop 0.5s ease-out;
}

/* Responsive Cart Layout */
@media (max-width: 1024px) {
    .cart-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .cart-summary {
        order: -1;
    }
}

@media (max-width: 768px) {
    .cart-items,
    .summary-card,
    .coupon-card,
    .security-info {
        padding: var(--spacing-6);
    }
    
    .cart-item {
        flex-direction: column;
        gap: var(--spacing-4);
        padding: var(--spacing-5);
    }
    
    .cart-item-image {
        width: 100%;
        height: 200px;
        align-self: center;
        max-width: 200px;
    }
    
    .cart-item-actions {
        flex-direction: column;
        gap: var(--spacing-4);
        align-items: stretch;
    }
    
    .quantity-controls {
        justify-content: center;
    }
    
    .cart-item-price {
        text-align: center;
        font-size: var(--font-size-2xl);
    }
    
    .page-title {
        font-size: var(--font-size-3xl);
    }
    
    .cart-header {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .cart-section {
        padding: var(--spacing-8) 0;
    }
    
    .cart-items,
    .summary-card {
        padding: var(--spacing-4);
    }
    
    .cart-item {
        padding: var(--spacing-4);
        margin-bottom: var(--spacing-4);
    }
    
    .cart-item-image {
        height: 150px;
    }
    
    .security-badges {
        gap: var(--spacing-2);
    }
    
    .security-badge {
        padding: var(--spacing-2);
    }
    
    .security-badge span {
        font-size: var(--font-size-xs);
    }
}

/* CHECKOUT PAGE STYLES */
.checkout-section {
    padding: var(--spacing-16) 0;
    background: linear-gradient(180deg, var(--background-light) 0%, var(--background) 50%, var(--background-light) 100%);
    min-height: 80vh;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-12);
    align-items: start;
}

/* Checkout Progress Indicator */
.checkout-progress {
    padding: var(--spacing-8) 0;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
    border-bottom: 1px solid var(--border-light);
}

.progress-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    max-width: 600px;
    margin: 0 auto;
}

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

.step-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    transition: all var(--transition-normal);
    border: 3px solid var(--border-color);
    background: var(--background);
    color: var(--text-light);
}

.progress-step.completed .step-icon {
    background: linear-gradient(135deg, var(--accent-color) 0%, #059669 100%);
    border-color: var(--accent-color);
    color: white;
    box-shadow: var(--shadow-lg);
}

.progress-step.active .step-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s infinite;
}

.step-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
}

.progress-step.completed .step-label,
.progress-step.active .step-label {
    color: var(--text-primary);
}

.progress-line {
    width: 80px;
    height: 3px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}

.progress-line.completed {
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--primary-color) 100%);
}

.progress-line.completed::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

/* Checkout Form Container */
.checkout-form-container {
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.checkout-form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--secondary-color) 100%);
}

.checkout-form-container h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-8);
    text-align: center;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Form Sections */
.form-section {
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.form-section:hover {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.form-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-3);
    border-bottom: 2px solid var(--border-light);
    position: relative;
}

.form-section h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: var(--radius-full);
}

/* Form Rows and Groups */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
    background: var(--background);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: white;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.field-error {
    color: #ef4444;
    font-size: var(--font-size-xs);
    font-weight: 500;
    margin-top: var(--spacing-1);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.field-error::before {
    content: '⚠';
    font-size: var(--font-size-sm);
}

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

.payment-method {
    position: relative;
}

.payment-method input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.payment-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.payment-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.5s;
}

.payment-method input[type="radio"]:checked + .payment-label {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, var(--background) 100%);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.payment-method input[type="radio"]:checked + .payment-label::before {
    left: 100%;
}

.payment-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--border-light) 100%);
    color: var(--text-secondary);
    font-size: var(--font-size-xl);
    transition: all var(--transition-fast);
    border: 2px solid var(--border-light);
}

.payment-method input[type="radio"]:checked + .payment-label .payment-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.payment-info {
    flex: 1;
}

.payment-info h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
}

.payment-info p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.payment-logos {
    display: flex;
    gap: var(--spacing-2);
    align-items: center;
}

.payment-logo-small {
    height: 24px;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.payment-method input[type="radio"]:checked + .payment-label .payment-logo-small {
    opacity: 1;
}

/* Checkbox Groups */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
    cursor: pointer;
    margin-top: 2px;
}

.checkbox-group label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1.5;
}

.checkbox-group label a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.checkbox-group label a:hover {
    text-decoration: underline;
}

/* Order Summary Container */
.order-summary-container {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.order-summary {
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.order-summary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--secondary-color) 100%);
}

.order-summary h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    text-align: center;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Order Items */
.order-items {
    margin-bottom: var(--spacing-6);
    max-height: 300px;
    overflow-y: auto;
    padding-right: var(--spacing-2);
}

.order-item {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.order-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.order-item-image {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--background-light);
}

.order-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.order-item-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.order-item-details h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
    line-height: 1.3;
}

.order-item-details p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin: 0;
}

.order-item-price {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--primary-color);
    text-align: right;
}

/* Order Totals */
.order-totals {
    border-top: 2px solid var(--border-light);
    padding-top: var(--spacing-4);
}

.order-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.order-total-row span:last-child {
    font-weight: 600;
    color: var(--text-primary);
}

.order-total-row.discount {
    color: var(--accent-color);
}

.order-total-row.discount span:last-child {
    color: var(--accent-color);
}

.order-total-row.final-total {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    border-top: 2px solid var(--border-light);
    margin-top: var(--spacing-3);
    padding-top: var(--spacing-3);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
    border-radius: var(--radius-lg);
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
}

.order-total-row.final-total span:last-child {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* Checkout Actions */
.checkout-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-6);
    margin-top: var(--spacing-12);
    padding: var(--spacing-6);
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.checkout-actions .btn {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.checkout-actions .btn::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;
}

.checkout-actions .btn:hover::before {
    left: 100%;
}

.checkout-actions .btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow-lg);
}

.checkout-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.checkout-actions .btn-secondary {
    background: linear-gradient(135deg, var(--text-secondary) 0%, var(--text-primary) 100%);
    color: white;
    border: none;
}

.checkout-actions .btn-secondary:hover {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: var(--spacing-5) var(--spacing-10);
    font-size: var(--font-size-lg);
}

/* Security Section */
.security-section {
    padding: var(--spacing-12) 0;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background) 100%);
}

.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
}

.security-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background: var(--background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.security-feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.security-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
    color: white;
    font-size: var(--font-size-xl);
    box-shadow: var(--shadow-lg);
    animation: security-pulse 3s ease-in-out infinite;
}

.security-content h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.security-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .checkout-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .order-summary-container {
        position: static;
        order: -1;
    }
    
    .checkout-actions {
        flex-direction: column;
        gap: var(--spacing-4);
    }
    
    .checkout-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .checkout-section {
        padding: var(--spacing-8) 0;
    }
    
    .checkout-form-container,
    .order-summary {
        padding: var(--spacing-6);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .progress-steps {
        gap: var(--spacing-2);
    }
    
    .progress-line {
        width: 40px;
    }
    
    .step-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .step-label {
        font-size: var(--font-size-xs);
    }
    
    .payment-label {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }
    
    .payment-info {
        text-align: center;
    }
    
    .security-features {
        grid-template-columns: 1fr;
    }
    
    .security-feature {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .checkout-form-container,
    .order-summary {
        padding: var(--spacing-4);
    }
    
    .form-section {
        padding: var(--spacing-4);
    }
    
    .order-items {
        max-height: 200px;
    }
    
    .order-item {
        flex-direction: column;
        text-align: center;
    }
    
    .order-item-image {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }
    
    .checkout-actions {
        padding: var(--spacing-4);
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes slideInFromTop {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes cartItemEnter {
    from { 
        opacity: 0; 
        transform: translateX(-30px) scale(0.95); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0) scale(1); 
    }
}

@keyframes cartItemExit {
    from { 
        opacity: 1; 
        transform: translateX(0) scale(1); 
    }
    to { 
        opacity: 0; 
        transform: translateX(30px) scale(0.95); 
    }
}

@keyframes cartItemUpdate {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

@keyframes quantityPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes security-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in {
    animation: slideIn 0.5s ease-out;
}