/* Modern Cart Styles */
:root {
    /* Import existing variables from shop.css */
    --primary: #8B4513;
    --primary-light: #A0522D;
    --primary-dark: #654321;
    --secondary: #D2691E;
    --accent: #CD853F;
    --background: #FAF9F6;
    --surface: #FFFFFF;
    --text-primary: #2C1810;
    --text-secondary: #6B5B73;
    --text-muted: #8B7D8B;
    --border: #E5E0DB;
    --brown-50: #FAF9F6;
    --brown-100: #F5F0EB;
    --brown-200: #E5E0DB;
    --brown-300: #D4C4B0;
    --brown-400: #C4A484;
    --brown-500: #B8946F;
    --brown-600: #A67C52;
    --brown-700: #8B5A2B;
    --brown-800: #6B4423;
    --brown-900: #4A2C17;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* Cart Layout */
.cart-layout {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-lg);
    min-height: 80vh;
}

/* Cart Header */
.cart-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--brown-50) 0%, var(--background) 100%);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cart-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" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23A0522D" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23cart)"/></svg>');
    opacity: 0.3;
}

.cart-header h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-md) 0;
    position: relative;
    z-index: 2;
}

.cart-header h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}

.cart-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin: 0;
    position: relative;
    z-index: 2;
}

/* Cart Content */
.cart-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-2xl);
    align-items: start;
}

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

.cart-item {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    transition: var(--transition-normal);
    display: flex;
    gap: var(--space-lg);
    align-items: center;
    position: relative;
    overflow: hidden;
}

.cart-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.cart-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

/* Cart Item Image */
.cart-item-image {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--brown-50);
    flex-shrink: 0;
    position: relative;
}

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

.cart-item:hover .cart-item-image img {
    transform: scale(1.05);
}

.cart-item-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--brown-100);
    color: var(--text-muted);
    font-size: 2rem;
}

/* Cart Item Details */
.cart-item-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.cart-item-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

.cart-item-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

.cart-item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-xs);
}

.cart-item-sku {
    background: var(--brown-100);
    color: var(--text-muted);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: monospace;
}

.cart-item-category {
    background: var(--primary);
    color: white;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Cart Item Controls */
.cart-item-controls {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-md);
    min-width: 200px;
}

.cart-item-pricing {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-xs);
}

.cart-item-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.cart-item-total {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--brown-50);
    border-radius: var(--radius-md);
    padding: var(--space-xs);
    border: 1px solid var(--border);
}

.quantity-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.quantity-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.quantity-btn:disabled {
    background: var(--brown-300);
    cursor: not-allowed;
    transform: none;
}

.quantity-input {
    width: 50px;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    outline: none;
}

.quantity-input::-webkit-outer-spin-button,
.quantity-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.quantity-input[type=number] {
    -moz-appearance: textfield;
}

.cart-item-actions {
    display: flex;
    gap: var(--space-sm);
}

.remove-btn {
    background: var(--error);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.remove-btn:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.wishlist-btn {
    background: var(--brown-100);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.wishlist-btn:hover {
    background: var(--brown-200);
    border-color: var(--primary);
}

/* Cart Summary */
.cart-summary {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    position: sticky;
    top: var(--space-xl);
    height: fit-content;
}

.summary-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--brown-100);
}

.summary-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.summary-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
}

.summary-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.summary-value {
    font-weight: 600;
    color: var(--text-primary);
}

.summary-total {
    border-top: 2px solid var(--brown-200);
    padding-top: var(--space-md);
    margin-top: var(--space-md);
}

.summary-total .summary-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.summary-total .summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.summary-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.checkout-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

.checkout-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.continue-shopping-btn {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.continue-shopping-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Empty Cart State */
.empty-cart {
    text-align: center;
    padding: var(--space-3xl);
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.empty-cart-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.empty-cart h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-md) 0;
}

.empty-cart p {
    color: var(--text-secondary);
    margin: 0 0 var(--space-xl) 0;
    font-size: 1.1rem;
}

.empty-cart .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: var(--transition-normal);
}

.empty-cart .btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Loading States */
.cart-item.loading {
    opacity: 0.6;
    pointer-events: none;
}

.cart-item.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid var(--brown-200);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Animations */
.cart-item {
    animation: slideInUp 0.5s ease-out;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .cart-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .cart-summary {
        position: static;
        order: -1;
    }
}

@media (max-width: 768px) {
    .cart-layout {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .cart-header {
        padding: var(--space-xl) var(--space-md);
    }
    
    .cart-item {
        flex-direction: column;
        text-align: center;
        gap: var(--space-md);
    }
    
    .cart-item-image {
        width: 100px;
        height: 100px;
    }
    
    .cart-item-controls {
        align-items: center;
        min-width: auto;
        width: 100%;
    }
    
    .cart-item-actions {
        justify-content: center;
        width: 100%;
    }
    
    .cart-item-quantity {
        justify-content: center;
    }
    
    .summary-actions {
        gap: var(--space-sm);
    }
    
    .checkout-btn,
    .continue-shopping-btn {
        width: 100%;
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .cart-layout {
        padding: var(--space-lg) var(--space-sm);
    }
    
    .cart-header h1 {
        font-size: 2rem;
    }
    
    .cart-header p {
        font-size: 1rem;
    }
    
    .cart-item {
        padding: var(--space-md);
    }
    
    .cart-item-image {
        width: 80px;
        height: 80px;
    }
    
    .cart-item-title {
        font-size: 1.1rem;
    }
    
    .cart-item-price {
        font-size: 1.3rem;
    }
    
    .cart-item-total {
        font-size: 1rem;
    }
    
    .quantity-btn {
        width: 28px;
        height: 28px;
        font-size: 0.9rem;
    }
    
    .quantity-input {
        width: 40px;
        font-size: 0.9rem;
    }
    
    .remove-btn,
    .wishlist-btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.8rem;
    }
    
    .cart-summary {
        padding: var(--space-lg);
    }
    
    .summary-header h3 {
        font-size: 1.3rem;
    }
    
    .summary-total .summary-value {
        font-size: 1.3rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for keyboard navigation */
.quantity-btn:focus,
.remove-btn:focus,
.wishlist-btn:focus,
.checkout-btn:focus,
.continue-shopping-btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .cart-item,
    .cart-summary,
    .empty-cart {
        border: 2px solid currentColor;
    }
    
    .quantity-btn,
    .remove-btn,
    .checkout-btn {
        border: 2px solid currentColor;
    }
}