/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    :root {
        --space-xl: 2rem;
    }
    
    .pureaxis-product-hero {
        padding: var(--space-lg) var(--space-md);
    }
    
    .pureaxis-product-hero .product-title {
        font-size: 2rem;
    }
    
    .pureaxis-specs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }
}

/* Mobile (320px - 768px) */
@media (max-width: 768px) {
    .pureaxis-product-hero {
        text-align: center;
        padding: var(--space-md) var(--space-sm);
        border-radius: var(--radius-lg);
    }
    
    .pureaxis-product-hero .product-title {
        font-size: 1.75rem;
    }
    
    .pureaxis-product-hero .product-subtitle {
        font-size: 1rem;
    }
    
    .pureaxis-quality-badges {
        justify-content: center;
    }
    
    .pureaxis-badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .pureaxis-specs-grid {
        grid-template-columns: 1fr;
    }
    
    .pureaxis-spec-card {
        padding: var(--space-sm);
    }
    
    .pureaxis-variation-options {
        flex-direction: column;
    }
    
    .pureaxis-variation-option {
        min-width: 100%;
    }
    
    .pureaxis-product-card:hover {
        transform: translateY(-4px);
    }
    
    /* Collapsible sections on mobile */
    .pureaxis-collapsible-header {
        cursor: pointer;
        padding: var(--space-sm);
        background: var(--pureaxis-off-white);
        border-radius: var(--radius-sm);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .pureaxis-collapsible-header::after {
        content: '+';
        font-size: 1.5rem;
        font-weight: 300;
        transition: transform var(--transition-normal);
    }
    
    .pureaxis-collapsible-header.active::after {
        content: '−';
    }
    
    .pureaxis-collapsible-content {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-slow);
    }
    
    .pureaxis-collapsible-content.active {
        max-height: 2000px;
    }
}

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
    .pureaxis-product-hero .product-title {
        font-size: 1.5rem;
    }
    
    .pureaxis-spec-card .spec-value {
        font-size: 1rem;
    }
    
    .pureaxis-variation-option .strength {
        font-size: 1.125rem;
    }
    
    .ux-peptide-specs .specs-table td {
        display: block;
        width: 100%;
        padding: 0.5rem;
    }
    
    .ux-peptide-specs .specs-table td:first-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    
    .ux-peptide-specs .specs-table td:last-child {
        padding-top: 0;
    }
}