/* ============================================
   LGV DESIGN SYSTEM - LIGHT THEME
   Clean, Lab-Grade Aesthetic
   ============================================ */

:root {
  /* Light theme colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-elevated: #e2e8f0;
  
  /* Text */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  /* Accent colors - matching labels */
  --accent-cyan: #06b6d4;
  --accent-blue: #2563eb;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --accent-purple: #8b5cf6;
  
  /* Borders */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
  
  /* Spacing */
  --container-max: 1200px;
  --section-padding: 5rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* ============================================
   RESET & BASE
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================
   TRUST BAR
   ============================================ */

.trust-bar {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  padding: 0.625rem 0;
}

.trust-items {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: white;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-main a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-main a:hover,
.nav-main a.active {
  color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.cart-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.cart-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-cyan);
}

.cart-btn svg {
  color: var(--text-secondary);
}

.cart-count {
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--accent-cyan);
  color: white;
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-main {
    display: none;
  }
  
  .cart-btn span:not(.cart-count) {
    display: none;
  }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  padding: 6rem 0;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.hero-badge svg {
  color: var(--accent-cyan);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35);
}

.btn-secondary {
  background: white;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-cyan);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
  padding: var(--section-padding) 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
}

/* ============================================
   PRODUCTS GRID
   ============================================ */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Product Cards - Minimal Clean */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: all var(--transition-base);
  overflow: hidden;
}

.product-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-card-inner {
  display: block;
  padding: 1.75rem;
  text-decoration: none;
  color: inherit;
}

.product-card-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.product-card-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.product-card-dose {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.product-card-stock {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.product-card-stock.in-stock { color: var(--accent-green); }
.product-card-stock.out-of-stock { color: var(--accent-red); }

.stock-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.product-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.product-card-price {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.product-card-btn {
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.product-card-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.product-card-btn.disabled {
  background: var(--bg-tertiary) !important;
  color: var(--text-muted) !important;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ============================================
   FEATURES GRID
   ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  text-align: center;
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(37, 99, 235, 0.1));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--accent-cyan);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   CATEGORY FILTERS
   ============================================ */

.category-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  border-color: transparent;
}

/* ============================================
   CART SIDEBAR
   ============================================ */

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 420px;
  height: 100%;
  height: 100dvh;
  background: var(--bg-card);
  border-left: 1px solid var(--border-color);
  z-index: 1101;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

@supports (-webkit-touch-callout: none) {
  .cart-sidebar {
    height: -webkit-fill-available;
  }
}

.cart-sidebar.active {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.cart-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

.cart-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cart-close:hover {
  background: var(--bg-elevated);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
  min-height: 0;
}

.cart-footer {
  padding: 1.5rem;
  padding-bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
  background: var(--bg-card);
}

.cart-subtotal {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.cart-subtotal span:last-child {
  font-weight: 600;
  font-family: var(--font-mono);
}

.cart-shipping-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.cart-checkout-btn {
  display: block;
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cart-checkout-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35);
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-column h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 0.5rem;
}

.footer-column a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

/* ============================================
   PAGE HEADER
   ============================================ */

.page-header-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
  text-align: center;
}

.page-header-section h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.page-header-section p {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* ============================================
   PRODUCT PAGE
   ============================================ */

.product-page {
  padding: 3rem 0;
}

.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.product-image-area {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.product-info h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.product-sku {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.product-price {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.product-stock {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

.product-stock-dot {
  width: 8px;
  height: 8px;
  background: currentColor;
  border-radius: 50%;
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.quantity-selector label {
  font-weight: 500;
  color: var(--text-secondary);
}

.quantity-controls {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.quantity-controls button {
  width: 44px;
  height: 44px;
  background: var(--bg-tertiary);
  border: none;
  font-size: 1.25rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.quantity-controls button:hover {
  background: var(--bg-elevated);
}

.quantity-controls input {
  width: 60px;
  height: 44px;
  border: none;
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font-mono);
  background: var(--bg-card);
}

.add-to-cart-btn {
  width: 100%;
  padding: 1.125rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  font-size: 1.0625rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.add-to-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35);
}

@media (max-width: 900px) {
  .product-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ============================================
   TABS
   ============================================ */

.product-tabs {
  margin-top: 3rem;
}

.tab-nav {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.tab-btn {
  padding: 1rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: -1px;
}

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

.tab-btn.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-panel h3 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

.tab-panel p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* ============================================
   RESEARCH PAGES
   ============================================ */

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.research-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all var(--transition-base);
}

.research-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-md);
}

.research-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.research-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* ============================================
   UTILITIES
   ============================================ */

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* ============================================
   AGE VERIFICATION MODAL
   ============================================ */

.age-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.age-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3rem;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.age-modal h2 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.age-modal p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.age-buttons {
  display: flex;
  gap: 1rem;
}

.age-buttons button {
  flex: 1;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.age-confirm {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: white;
  border: none;
}

.age-confirm:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.35);
}

.age-deny {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.age-deny:hover {
  background: var(--bg-elevated);
}

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

@media (max-width: 640px) {
  .hero {
    padding: 4rem 0;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.0625rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
  }
}