/* ==========================================================================
   1. CSS VARIABLES & DESIGN TOKENS
   ========================================================================== */
:root {
    /* Primary Colors */
    --pureaxis-blue: #1e40af;
    --pureaxis-blue-dark: #1e3a8a;
    --pureaxis-blue-light: #3b82f6;
    --pureaxis-blue-gradient: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    
    /* Accent Colors */
    --pureaxis-green: #059669;
    --pureaxis-green-light: #10b981;
    --pureaxis-green-gradient: linear-gradient(135deg, #059669 0%, #10b981 100%);
    
    /* Neutral Colors */
    --pureaxis-white: #ffffff;
    --pureaxis-off-white: #f8fafc;
    --pureaxis-gray-100: #f1f5f9;
    --pureaxis-gray-200: #e2e8f0;
    --pureaxis-gray-300: #cbd5e1;
    --pureaxis-gray-600: #475569;
    --pureaxis-gray-900: #0f172a;
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --glass-blur: blur(10px);
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ==========================================================================
   2. GLOBAL STYLES & TYPOGRAPHY
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

body {
    font-family: var(--font-primary);
    color: var(--pureaxis-gray-900);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Molecule-inspired background pattern */
.pureaxis-bg-pattern {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(5, 150, 105, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Glass card utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-normal);
}

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

/* Gradient text utility */
.gradient-text {
    background: var(--pureaxis-blue-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   3. PRODUCT PAGE LAYOUT
   ========================================================================== */
/* Hero Section */
.pureaxis-product-hero {
    position: relative;
    padding: var(--space-xl) 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #ecfdf5 100%);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-xl);
    overflow: hidden;
}

.pureaxis-product-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.pureaxis-product-hero .product-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--pureaxis-gray-900);
    margin-bottom: var(--space-xs);
    line-height: 1.2;
}

.pureaxis-product-hero .product-subtitle {
    font-size: 1.25rem;
    color: var(--pureaxis-gray-600);
    font-weight: 400;
    margin-bottom: var(--space-md);
}

.pureaxis-product-hero .molecule-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--pureaxis-blue-gradient);
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
}

.molecule-badge::before {
    content: '⚛';
    font-size: 1.1em;
}

/* ==========================================================================
   4. QUALITY BADGES
   ========================================================================== */
.pureaxis-quality-badges {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin: var(--space-md) 0;
}

.pureaxis-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--pureaxis-gray-900);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.pureaxis-badge:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.pureaxis-badge svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.pureaxis-badge.purity {
    border-left: 3px solid var(--pureaxis-green);
}

.pureaxis-badge.lab-tested {
    border-left: 3px solid var(--pureaxis-blue-light);
}

.pureaxis-badge.research-grade {
    border-left: 3px solid #8b5cf6;
}

/* Animated checkmark for badges */
.pureaxis-badge .checkmark {
    display: inline-block;
    animation: checkmark 0.3s ease-in-out;
}

@keyframes checkmark {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* ==========================================================================
   5. QUICK SPECS GRID
   ========================================================================== */
.pureaxis-specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.pureaxis-spec-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: all var(--transition-normal);
    box-shadow: var(--glass-shadow);
}

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

.pureaxis-spec-card .spec-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pureaxis-blue-gradient);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
    color: white;
    font-size: 1.5rem;
}

.pureaxis-spec-card .spec-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--pureaxis-gray-600);
    margin-bottom: 0.25rem;
}

.pureaxis-spec-card .spec-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--pureaxis-gray-900);
}

.pureaxis-spec-card .spec-value.molecular-weight {
    font-family: var(--font-mono);
    color: var(--pureaxis-blue);
}

/* Molecule structure visualization */
.molecule-visual {
    position: relative;
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, rgba(5, 150, 105, 0.02) 100%);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.molecule-visual::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: molecule-pulse 3s ease-in-out infinite;
}

@keyframes molecule-pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

/* ==========================================================================
   6. VARIATION SELECTOR
   ========================================================================== */
.pureaxis-variation-selector {
    margin: var(--space-lg) 0;
}

.pureaxis-variation-selector .variation-options {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.pureaxis-variation-option {
    position: relative;
    flex: 1;
    min-width: 100px;
    padding: var(--space-md);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 2px solid var(--pureaxis-gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

.pureaxis-variation-option:hover {
    border-color: var(--pureaxis-blue-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.pureaxis-variation-option.selected {
    border-color: var(--pureaxis-blue);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(5, 150, 105, 0.05) 100%);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.pureaxis-variation-option .strength {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pureaxis-gray-900);
    display: block;
}

.pureaxis-variation-option .price {
    font-size: 0.875rem;
    color: var(--pureaxis-green);
    font-weight: 600;
    display: block;
    margin-top: 0.25rem;
}

.pureaxis-variation-option .best-value {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--pureaxis-green-gradient);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   7. SHOP PAGE CARDS
   ========================================================================== */
.pureaxis-product-card {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--glass-shadow);
}

.pureaxis-product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pureaxis-product-card .product-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
}

.pureaxis-product-card .product-image-wrapper img {
    transition: transform var(--transition-slow);
}

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

.pureaxis-product-card .card-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    background: var(--pureaxis-blue-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}

.pureaxis-product-card .card-content {
    padding: var(--space-md);
}

.pureaxis-product-card .product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--pureaxis-gray-900);
}

.pureaxis-product-card .product-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.pureaxis-product-card .meta-item {
    font-size: 0.75rem;
    color: var(--pureaxis-gray-600);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.pureaxis-product-card .molecule-structure {
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    opacity: 0.05;
    font-size: 8rem;
    pointer-events: none;
    user-select: none;
}

/* ==========================================================================
   8. UX BUILDER ELEMENTS
   ========================================================================== */
/* Peptide Specs Block */
.ux-peptide-specs {
    padding: var(--space-lg);
    background: linear-gradient(135deg, #f0f9ff 0%, #ecfdf5 100%);
    border-radius: var(--radius-lg);
    margin: var(--space-lg) 0;
}

.ux-peptide-specs .specs-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.ux-peptide-specs .specs-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--pureaxis-gray-900);
    margin-bottom: var(--space-xs);
}

.ux-peptide-specs .specs-header p {
    color: var(--pureaxis-gray-600);
    font-size: 1rem;
}

.ux-peptide-specs .specs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.ux-peptide-specs .specs-table tr {
    transition: background var(--transition-fast);
}

.ux-peptide-specs .specs-table tr:hover {
    background: rgba(255, 255, 255, 0.5);
}

.ux-peptide-specs .specs-table td {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--pureaxis-gray-200);
}

.ux-peptide-specs .specs-table td:first-child {
    font-weight: 600;
    color: var(--pureaxis-gray-600);
    width: 40%;
}

.ux-peptide-specs .specs-table td:last-child {
    font-weight: 500;
    color: var(--pureaxis-gray-900);
}

/* Quality Badge Block */
.ux-quality-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   9. ANIMATIONS
   ========================================================================== */
/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in-up-delay-1 { animation-delay: 0.1s; }
.fade-in-up-delay-2 { animation-delay: 0.2s; }
.fade-in-up-delay-3 { animation-delay: 0.3s; }
.fade-in-up-delay-4 { animation-delay: 0.4s; }

/* Shimmer Effect */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.shimmer {
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.4) 50%, 
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* Pulse Glow */
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 5px rgba(59, 130, 246, 0.3); }
    50% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.5); }
}

.pulse-glow {
    animation: pulseGlow 2s ease-in-out infinite;
}

/* ==========================================================================
   10. RESPONSIVE DESIGN (See responsive.css for more)
   ========================================================================== */
@media (max-width: 768px) {
    .pureaxis-specs-grid {
        grid-template-columns: 1fr;
    }
    
    .pureaxis-quality-badges {
        flex-direction: column;
    }
    
    .pureaxis-variation-options {
        flex-direction: column;
    }
}