/**
 * Modern Responsive CSS with Container Queries
 * Custom Simple Peptide Plugin - WooCommerce 10.0+ Compatible
 * 
 * Uses CSS Container Queries for responsive design instead of legacy media queries
 * Follows WCAG 2.2 AA accessibility standards
 */

/* Container Query Support Detection */
@supports (container-type: inline-size) {
    .woocommerce-cart,
    .woocommerce-checkout,
    .woocommerce .products,
    .csp-wholesale-section {
        container-type: inline-size;
    }
}

/* Wholesale Pricing Display */
.csp-wholesale-pricing {
    container-type: inline-size;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

/* Small Container (< 400px) */
@container (max-width: 400px) {
    .csp-wholesale-pricing {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .csp-wholesale-pricing .pricing-tiers {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .csp-wholesale-pricing .tier-item {
        padding: 0.5rem;
        border-radius: 4px;
        background: rgba(255, 255, 255, 0.8);
    }
    
    .packaging-option {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 0.75rem;
    }
    
    .packaging-option input {
        margin-bottom: 0.25rem;
    }
}

/* Medium Container (401px - 768px) */
@container (min-width: 401px) and (max-width: 768px) {
    .csp-wholesale-pricing .pricing-tiers {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .csp-wholesale-pricing .tier-item {
        padding: 0.75rem;
        border: 1px solid #ced4da;
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.9);
        text-align: center;
    }
    
    .packaging-option {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 0.75rem;
        align-items: center;
        padding: 0.75rem 1rem;
    }
}

/* Large Container (> 768px) */
@container (min-width: 769px) {
    .csp-wholesale-pricing .pricing-tiers {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    
    .csp-wholesale-pricing .tier-item {
        padding: 1.25rem;
        border: 1px solid #ced4da;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.95);
        text-align: center;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .csp-wholesale-pricing .tier-item:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    }
    
    .packaging-option {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 1rem;
        align-items: center;
        padding: 1rem 1.25rem;
    }
}

/* Cart-specific Container Queries */
.woocommerce-cart {
    container-type: inline-size;
}

@container (max-width: 600px) {
    .woocommerce-cart .cart-item {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .woocommerce-cart .cart-item .product-thumbnail {
        order: -1;
        align-self: center;
        max-width: 80px;
    }
    
    .woocommerce-cart .cart-item .product-name {
        font-weight: 600;
        text-align: center;
    }
    
    .woocommerce-cart .cart-item .product-price,
    .woocommerce-cart .cart-item .product-subtotal {
        font-size: 1.1rem;
        font-weight: 600;
        text-align: center;
    }
}

@container (min-width: 601px) {
    .woocommerce-cart .cart-item {
        display: grid;
        grid-template-columns: auto 1fr auto auto auto;
        gap: 1rem;
        align-items: center;
        padding: 1.25rem;
        border-bottom: 1px solid #e0e0e0;
    }
}

/* Checkout Container Queries */
.woocommerce-checkout {
    container-type: inline-size;
}

@container (max-width: 768px) {
    .woocommerce-checkout .checkout-form {
        display: flex;
        flex-direction: column;
    }
    
    .woocommerce-checkout .col-1,
    .woocommerce-checkout .col-2 {
        width: 100%;
        margin-bottom: 2rem;
    }
    
    .csp-wholesale-checkout-notes {
        margin: 1rem 0;
        padding: 1rem;
        background: #f8f9fa;
        border-left: 4px solid #007cba;
        border-radius: 0 6px 6px 0;
    }
}

@container (min-width: 769px) {
    .woocommerce-checkout .checkout-form {
        display: grid;
        grid-template-columns: 1fr 400px;
        gap: 2rem;
    }
    
    .csp-wholesale-checkout-notes {
        grid-column: 1 / -1;
        margin: 1.5rem 0;
        padding: 1.5rem;
        background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        border: 1px solid #dee2e6;
        border-radius: 8px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }
}

/* WCAG 2.2 AA Accessibility Enhancements */
.csp-wholesale-pricing,
.packaging-option,
.csp-wholesale-checkout-notes {
    /* High contrast focus indicators */
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.packaging-option:focus-within,
.csp-wholesale-pricing:focus-within {
    outline-color: #005fcc;
    outline-style: solid;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .packaging-option,
    .csp-wholesale-pricing .tier-item {
        transition: none;
    }
    
    .csp-wholesale-pricing .tier-item:hover {
        transform: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .csp-wholesale-pricing {
        background: #ffffff;
        border: 2px solid #000000;
    }
    
    .csp-wholesale-pricing .tier-item {
        background: #ffffff;
        border: 2px solid #000000;
        color: #000000;
    }
    
    .packaging-option:hover,
    .packaging-option:has(input:checked) {
        background: #000000;
        color: #ffffff;
        border-color: #ffffff;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .csp-wholesale-pricing {
        background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
        border-color: #718096;
        color: #f7fafc;
    }
    
    .csp-wholesale-pricing .tier-item {
        background: rgba(45, 55, 72, 0.9);
        border-color: #718096;
        color: #f7fafc;
    }
    
    .packaging-option {
        background-color: #2d3748;
        color: #f7fafc;
    }
    
    .packaging-option:hover {
        background-color: #4a5568;
        border-color: #718096;
    }
    
    .packaging-option:has(input:checked) {
        background-color: #2b6cb0;
        border-color: #3182ce;
    }
}

/* Legacy fallback for browsers without container query support */
@supports not (container-type: inline-size) {
    /* Mobile First Approach */
    .csp-wholesale-pricing .pricing-tiers {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    @media (min-width: 401px) {
        .csp-wholesale-pricing .pricing-tiers {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }
    }
    
    @media (min-width: 769px) {
        .csp-wholesale-pricing .pricing-tiers {
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
    }
}