/* ============================================
   4 Seasons Shopping — Kids' Summer Sun Protection
   Design System: Bright, cheerful, family-friendly
   ============================================ */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }

/* --- CSS Variables (Design Tokens) --- */
:root {
  /* Colors — Summer sun protection theme */
  --color-bg: #fdfbf7;
  --color-surface: #ffffff;
  --color-surface-alt: #f5f0e8;
  --color-border: #e8e0d4;
  --color-text-primary: #1a3a52;
  --color-text-secondary: #4a5560;
  --color-text-muted: #8a9099;
  --color-accent: #1a4d6e;
  --color-accent-hover: #143d58;
  --color-accent-fg: #ffffff;
  --color-coral: #ff6b4a;
  --color-coral-hover: #e85a3a;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-error: #e74c3c;
  --color-sale: #ff6b4a;

  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(26, 77, 110, 0.08);
  --shadow-md: 0 4px 12px rgba(26, 77, 110, 0.12);
  --shadow-lg: 0 12px 32px rgba(26, 77, 110, 0.16);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  /* Layout */
  --container-max: 1280px;
  --header-height: 72px;
}

/* --- Base Typography --- */
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

p { margin-bottom: var(--space-md); }

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-base);
  text-align: center;
  white-space: nowrap;
  min-height: 48px;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-fg);
}
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }

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

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}
.btn-secondary:hover { background: var(--color-accent); color: var(--color-accent-fg); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { background: var(--color-surface-alt); border-color: var(--color-accent); }

.btn-sm { padding: 8px 16px; font-size: 0.85rem; min-height: 40px; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; min-height: 56px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-heading);
}
.badge-sale { background: var(--color-sale); color: #fff; }
.badge-new { background: var(--color-success); color: #fff; }
.badge-out { background: var(--color-text-muted); color: #fff; }
.badge-count {
  background: var(--color-coral);
  color: #fff;
  min-width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  padding: 0 6px;
}

/* --- Announcement Bar --- */
.announcement-bar {
  background: var(--color-accent);
  color: #fff;
  text-align: center;
  padding: 10px var(--space-md);
  font-size: 0.85rem;
  font-weight: 500;
}
.announcement-bar strong { font-weight: 600; }

/* --- Navigation --- */
.nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0 var(--space-md);
  height: var(--header-height);
}
.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-accent);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.nav-logo span { color: var(--color-coral); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.nav-links a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  position: relative;
}
.nav-links a:hover { color: var(--color-coral); }
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-coral);
  transition: width var(--transition-base);
}
.nav-links a:hover::after { width: 100%; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.nav-search-btn, .nav-cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.nav-search-btn:hover, .nav-cart-btn:hover { background: var(--color-surface-alt); }
.nav-cart-btn .badge-count {
  position: absolute;
  top: 2px;
  right: 2px;
}


/* --- Nav Dropdown --- */
.nav-dropdown {
  position: relative;
}
.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}
.nav-dropdown-toggle:hover { color: var(--color-coral); }
.nav-dropdown-toggle .chevron {
  font-size: 0.7rem;
  transition: transform var(--transition-base);
}
.nav-dropdown:hover .nav-dropdown-toggle .chevron { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-base);
  z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 10px var(--space-md);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.nav-dropdown-menu a:hover {
  background: var(--color-surface-alt);
  color: var(--color-coral);
  padding-left: calc(var(--space-md) + 4px);
}
.nav-dropdown-menu a::after { display: none; }

/* Mobile menu collections expandable */
.mobile-menu .mobile-collections-section { margin-top: 0; }
.mobile-menu .mobile-collections-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
}
.mobile-menu .mobile-collections-toggle .chevron {
  transition: transform var(--transition-base);
}
.mobile-menu .mobile-collections-toggle.open .chevron { transform: rotate(180deg); }
.mobile-menu .mobile-collections-list {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}
.mobile-menu .mobile-collections-list.open { max-height: 400px; }
.mobile-menu .mobile-collections-list a {
  padding-left: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

/* --- Checkout Page Styles --- */
.checkout-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding: var(--space-lg) 0;
}
.checkout-form-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}
.checkout-form-section h2 {
  font-size: 1.15rem;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
}
.checkout-summary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
}
.checkout-summary h2 {
  font-size: 1.15rem;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
}
.checkout-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.checkout-item img { width: 64px; height: 64px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.checkout-item-info { flex: 1; min-width: 0; }
.checkout-item-info h4 { font-size: 0.85rem; margin-bottom: 2px; }
.checkout-item-info .variant { font-size: 0.8rem; color: var(--color-text-muted); }
.checkout-item-info .qty-price { font-size: 0.85rem; color: var(--color-text-secondary); margin-top: 4px; }
.checkout-totals { margin-top: var(--space-md); }
.checkout-total-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs) 0;
  font-size: 0.9rem;
}
.checkout-total-row.grand {
  border-top: 2px solid var(--color-border);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-heading);
}
.checkout-total-row.grand strong { font-family: var(--font-mono); color: var(--color-accent); }
.checkout-payment-methods {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin: var(--space-md) 0;
}
.payment-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.9rem;
}
.payment-option:hover { border-color: var(--color-accent); }
.payment-option.selected { border-color: var(--color-accent); background: rgba(26, 77, 110, 0.05); }
.payment-option input { accent-color: var(--color-accent); }
.checkout-secure-badge {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(39, 174, 96, 0.08);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-success);
  margin-bottom: var(--space-md);
}
.order-confirmation {
  text-align: center;
  padding: var(--space-3xl) var(--space-md);
  max-width: 600px;
  margin: 0 auto;
}
.order-confirmation .check-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(39, 174, 96, 0.1);
  border-radius: var(--radius-full);
  font-size: 2.5rem;
  color: var(--color-success);
}
.order-confirmation h1 { margin-bottom: var(--space-md); }
.order-confirmation p { font-size: 1.05rem; color: var(--color-text-secondary); margin-bottom: var(--space-lg); }
.order-number {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}
.order-confirmation-details {
  text-align: left;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}
.order-confirmation-details h3 { margin-bottom: var(--space-sm); font-size: 1rem; }

@media (min-width: 768px) {
  .checkout-layout { grid-template-columns: 1fr 380px; }
}

/* --- Search Bar (header) --- */
.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  transition: border-color var(--transition-fast);
}
.search-bar:focus-within { border-color: var(--color-accent); }
.search-bar input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.9rem;
  width: 180px;
}
.search-results {
  position: absolute;
  top: 100%;
  right: 0;
  width: 360px;
  max-height: 400px;
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  display: none;
  z-index: 200;
}
.search-results.show { display: block; }
.search-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.search-item:hover { background: var(--color-surface-alt); }
.search-item img { width: 50px; height: 50px; object-fit: cover; border-radius: var(--radius-sm); }
.search-item-info h4 { font-size: 0.9rem; margin-bottom: 2px; }
.search-item-info .price { font-family: var(--font-mono); font-size: 0.85rem; color: var(--color-coral); font-weight: 600; }

/* --- Hamburger / Mobile Menu --- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  position: fixed;
  top: 0;
  left: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  z-index: 300;
  transition: left var(--transition-base);
  overflow-y: auto;
  padding: var(--space-xl) var(--space-lg);
}
.mobile-menu.open { left: 0; }
.mobile-menu-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 250;
  display: none;
}
.mobile-menu-overlay.show { display: block; }
.mobile-menu h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  margin: var(--space-lg) 0 var(--space-sm);
}
.mobile-menu a {
  display: block;
  padding: var(--space-sm) 0;
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}
.mobile-menu a:hover { color: var(--color-coral); }
.mobile-menu-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(26, 77, 110, 0.75) 0%, rgba(26, 77, 110, 0.45) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  padding: var(--space-3xl) var(--space-md);
  color: #fff;
}
.hero-eyebrow {
  display: inline-block;
  background: var(--color-coral);
  color: #fff;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
}
.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-md);
  line-height: 1.15;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-xl);
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- Sections --- */
.section { padding: var(--space-2xl) 0; }
.section-alt { background: var(--color-surface-alt); }
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}
.section-title {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}
.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* --- Grids --- */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-lg); }

/* --- Product Card --- */
.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-accent);
}
.product-card-img {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-surface-alt);
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-badges {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  z-index: 1;
}
.product-card-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}
.product-card-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card-title a:hover { color: var(--color-coral); }
.product-card-price-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: auto;
}
.product-card-price {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent);
}
.product-card-compare-price {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}
.product-card-atc {
  width: 100%;
  margin-top: var(--space-sm);
}

/* --- Collection Card --- */
.collection-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  display: block;
}
.collection-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}
.collection-card:hover img { transform: scale(1.05); }
.collection-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg);
  background: linear-gradient(transparent, rgba(26, 77, 110, 0.85));
  color: #fff;
}
.collection-card-overlay h3 { color: #fff; margin-bottom: var(--space-xs); }
.collection-card-overlay p { font-size: 0.85rem; margin: 0; opacity: 0.9; }

/* --- Blog Card --- */
.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}
.blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.blog-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: var(--space-md); display: flex; flex-direction: column; gap: var(--space-sm); flex: 1; }
.blog-card-meta { font-size: 0.8rem; color: var(--color-text-muted); display: flex; gap: var(--space-sm); }
.blog-card-title { font-size: 1.1rem; line-height: 1.3; }
.blog-card-excerpt { font-size: 0.9rem; color: var(--color-text-secondary); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.blog-card-read-more { color: var(--color-coral); font-weight: 600; font-size: 0.85rem; margin-top: auto; }

/* --- Trust Badges --- */
.trust-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
}
.trust-item {
  text-align: center;
  padding: var(--space-lg);
}
.trust-item-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-alt);
  border-radius: var(--radius-full);
  font-size: 1.5rem;
}
.trust-item h4 { font-size: 1rem; margin-bottom: var(--space-xs); }
.trust-item p { font-size: 0.85rem; color: var(--color-text-muted); margin: 0; }

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}
.breadcrumb a:hover { color: var(--color-coral); }
.breadcrumb-separator { color: var(--color-text-muted); }
.breadcrumb-item[aria-current] { color: var(--color-text-primary); font-weight: 500; }

/* --- Product Page Layout --- */
.product-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding: var(--space-lg) 0;
}
.product-gallery { display: flex; flex-direction: column; gap: var(--space-md); }
.gallery-main-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  aspect-ratio: 1;
}
.gallery-main-wrap img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
}
.gallery-thumb {
  width: 80px;
  height: 80px;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}
.gallery-thumb.active { border-color: var(--color-accent); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-info { display: flex; flex-direction: column; gap: var(--space-md); }
.product-vendor { font-size: 0.85rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 1px; }
.product-title { font-size: 1.6rem; line-height: 1.2; }
.product-price-wrap { display: flex; align-items: center; gap: var(--space-md); }
.product-price { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; color: var(--color-accent); }
.product-compare-price { font-family: var(--font-mono); font-size: 1.1rem; color: var(--color-text-muted); text-decoration: line-through; }

.rating-stars { display: flex; align-items: center; gap: 4px; }
.rating-stars .star { color: #f5a623; font-size: 1.1rem; }
.rating-stars .star-empty { color: var(--color-border); }
.rating-stars .rating-text { font-size: 0.85rem; color: var(--color-text-muted); margin-left: var(--space-xs); }

/* --- Option Selectors --- */
.option-group { display: flex; flex-direction: column; gap: var(--space-sm); }
.option-label { font-family: var(--font-heading); font-weight: 600; font-size: 0.9rem; color: var(--color-text-primary); }
.option-btns { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.option-btn {
  padding: 8px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  background: var(--color-surface);
}
.option-btn:hover { border-color: var(--color-accent); }
.option-btn.active { border-color: var(--color-accent); background: var(--color-accent); color: #fff; }
.option-btn.unavailable { opacity: 0.4; text-decoration: line-through; cursor: not-allowed; }

/* --- Quantity Control --- */
.qty-control {
  display: inline-flex;
  align-items: center;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.qty-btn {
  width: 40px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 600;
  transition: background var(--transition-fast);
}
.qty-btn:hover { background: var(--color-surface-alt); }
.qty-input {
  width: 50px;
  height: 44px;
  text-align: center;
  border: none;
  border-left: 2px solid var(--color-border);
  border-right: 2px solid var(--color-border);
  font-family: var(--font-mono);
  font-weight: 600;
  outline: none;
}

/* --- Sticky ATC --- */
.sticky-atc {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
  padding: var(--space-sm) var(--space-md);
  z-index: 90;
  display: none;
  align-items: center;
  gap: var(--space-md);
}
.sticky-atc.visible { display: flex; }
.sticky-atc-product {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  min-width: 0;
}
.sticky-atc-product img { width: 48px; height: 48px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.sticky-atc-product .info { min-width: 0; }
.sticky-atc-product .info h4 { font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sticky-atc-product .info .price { font-family: var(--font-mono); font-weight: 700; color: var(--color-accent); font-size: 0.9rem; }

/* --- Product Accordions --- */
.product-accordions { display: flex; flex-direction: column; gap: var(--space-xs); margin-top: var(--space-lg); }
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.accordion-header {
  padding: var(--space-md);
  background: var(--color-surface);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.accordion-header:hover { background: var(--color-surface-alt); }
.accordion-header .icon { transition: transform var(--transition-base); font-size: 1.2rem; }
.accordion.open .accordion-header .icon { transform: rotate(45deg); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}
.accordion.open .accordion-body { max-height: 2000px; }
.accordion-body-inner { padding: var(--space-md); color: var(--color-text-secondary); font-size: 0.9rem; line-height: 1.7; }
.accordion-body-inner ul { padding-left: var(--space-lg); list-style: disc; }
.accordion-body-inner li { margin-bottom: var(--space-xs); }

/* --- Reviews Section --- */
.reviews-section { padding: var(--space-xl) 0; }
.reviews-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}
.reviews-avg {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.reviews-score { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; color: var(--color-text-primary); }
.reviews-bars { flex: 1; display: flex; flex-direction: column; gap: var(--space-xs); }
.rating-bar { display: flex; align-items: center; gap: var(--space-sm); font-size: 0.8rem; }
.rating-bar-track { flex: 1; height: 6px; background: var(--color-surface-alt); border-radius: var(--radius-full); overflow: hidden; }
.rating-bar-fill { height: 100%; background: #f5a623; border-radius: var(--radius-full); }

.review-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}
.review-header { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-sm); }
.review-author { font-family: var(--font-heading); font-weight: 600; font-size: 0.95rem; }
.review-verified { font-size: 0.75rem; color: var(--color-success); display: flex; align-items: center; gap: 4px; }
.review-title { font-family: var(--font-heading); font-weight: 600; margin-bottom: var(--space-xs); }
.review-body { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.7; }

/* --- Cart Drawer --- */
.cart-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 400;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.cart-overlay.show { opacity: 1; visibility: visible; }
.cart-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 420px;
  height: 100vh;
  background: var(--color-surface);
  z-index: 500;
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.cart-drawer.open { right: 0; }
.cart-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}
.cart-drawer-header h2 { font-size: 1.25rem; display: flex; align-items: center; gap: var(--space-sm); }
.cart-lines { flex: 1; overflow-y: auto; padding: var(--space-md) var(--space-lg); }
.cart-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}
.cart-item img { width: 72px; height: 72px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-info h4 { font-size: 0.9rem; margin-bottom: 2px; }
.cart-item-info .variant { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: var(--space-sm); }
.cart-item-info .price { font-family: var(--font-mono); font-weight: 600; color: var(--color-accent); font-size: 0.9rem; }
.cart-item-controls { display: flex; align-items: center; gap: var(--space-sm); margin-top: var(--space-sm); }
.cart-item-controls .qty-control { transform: scale(0.85); transform-origin: left; }
.cart-item-remove { font-size: 0.8rem; color: var(--color-error); margin-left: auto; }
.cart-item-remove:hover { text-decoration: underline; }
.cart-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border);
}
.cart-subtotal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
}
.cart-subtotal strong { font-family: var(--font-mono); font-size: 1.2rem; color: var(--color-accent); }
.cart-tax-note { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: var(--space-md); }
.cart-empty { text-align: center; padding: var(--space-2xl) var(--space-lg); }
.cart-empty p { color: var(--color-text-muted); margin-bottom: var(--space-lg); }

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-text-primary);
  color: #fff;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 999;
  opacity: 0;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast-success { background: var(--color-success); }
.toast-error { background: var(--color-error); }

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-xl) 0;
}
.pagination-btn {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}
.pagination-btn:hover { border-color: var(--color-accent); background: var(--color-surface-alt); }
.pagination-btn.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* --- Sort Bar --- */
.sort-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.sort-bar select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: var(--color-surface);
  cursor: pointer;
}
.sort-bar select:focus { outline: none; border-color: var(--color-accent); }
.product-count { font-size: 0.85rem; color: var(--color-text-muted); }

/* --- Availability --- */
.availability-msg {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.availability-msg.in-stock { color: var(--color-success); }
.availability-msg.out-of-stock { color: var(--color-error); }

/* --- Footer --- */
.footer {
  background: var(--color-text-primary);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: var(--space-md); }
.footer-col a { display: block; padding: var(--space-xs) 0; font-size: 0.9rem; color: rgba(255,255,255,0.6); transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--color-coral); }
.footer-logo { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; color: #fff; margin-bottom: var(--space-md); }
.footer-logo span { color: var(--color-coral); }
.footer-col p { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-bottom: var(--space-md); }
.social-links { display: flex; gap: var(--space-sm); }
.social-links a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  transition: background var(--transition-fast);
}
.social-links a:hover { background: var(--color-coral); }
.footer-bottom {
  max-width: var(--container-max);
  margin: var(--space-xl) auto 0;
  padding: var(--space-lg) var(--space-md);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: var(--space-md);
}
.payment-icons { display: flex; gap: var(--space-sm); align-items: center; }
.payment-icons span { font-size: 0.75rem; padding: 4px 8px; border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius-sm); }

/* --- Skeleton --- */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-alt) 25%, var(--color-border) 50%, var(--color-surface-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Animations --- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

.fade-in { animation: fadeIn 0.5s ease; }
.slide-up { animation: slideUp 0.5s ease; }

/* --- FAQ Section --- */
.faq-section { max-width: 760px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}
.faq-question {
  padding: var(--space-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.faq-question:hover { background: var(--color-surface-alt); }
.faq-question .icon { transition: transform var(--transition-base); font-size: 1.2rem; }
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}
.faq-item.open .faq-answer { max-height: 500px; }
.faq-answer-inner { padding: 0 var(--space-md) var(--space-md); color: var(--color-text-secondary); font-size: 0.9rem; line-height: 1.7; }

/* --- Newsletter --- */
.newsletter {
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-2xl) 0;
  text-align: center;
}
.newsletter h2 { color: #fff; margin-bottom: var(--space-sm); }
.newsletter p { color: rgba(255,255,255,0.8); margin-bottom: var(--space-lg); }
.newsletter-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 440px;
  margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
}

/* --- Policy Pages --- */
.policy-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding: var(--space-lg) 0;
}
.policy-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.policy-sidebar a {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}
.policy-sidebar a:hover { background: var(--color-surface-alt); }
.policy-sidebar a.active { background: var(--color-accent); color: #fff; }
.policy-content h1 { margin-bottom: var(--space-lg); }
.policy-content h2 { margin: var(--space-lg) 0 var(--space-sm); font-size: 1.25rem; }
.policy-content p { margin-bottom: var(--space-md); }
.policy-content ul { padding-left: var(--space-lg); list-style: disc; margin-bottom: var(--space-md); }
.policy-content li { margin-bottom: var(--space-xs); }

/* --- Contact Form --- */
.contact-form { display: flex; flex-direction: column; gap: var(--space-md); max-width: 560px; }
.form-group { display: flex; flex-direction: column; gap: var(--space-xs); }
.form-group label { font-family: var(--font-heading); font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--color-accent); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-error { color: var(--color-error); font-size: 0.85rem; }
.form-success { color: var(--color-success); font-size: 0.9rem; font-weight: 600; }

/* --- 404 Page --- */
.error-page {
  text-align: center;
  padding: var(--space-3xl) var(--space-md);
}
.error-page h1 { font-size: 5rem; color: var(--color-coral); margin-bottom: var(--space-md); }
.error-page p { font-size: 1.1rem; color: var(--color-text-secondary); margin-bottom: var(--space-lg); }

/* --- Article Page --- */
.article-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.article-hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
}
.article-hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
}
.article-hero-content {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) var(--space-md);
  color: #fff;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}
.article-hero-content h1 { color: #fff; font-size: 2rem; margin-bottom: var(--space-sm); }
.article-meta { display: flex; gap: var(--space-md); font-size: 0.85rem; color: rgba(255,255,255,0.8); }
.article-body { max-width: 760px; margin: 0 auto; padding: var(--space-xl) 0; }
.article-body h2 { margin: var(--space-lg) 0 var(--space-sm); }
.article-body h3 { margin: var(--space-lg) 0 var(--space-sm); }
.article-body p { margin-bottom: var(--space-md); line-height: 1.8; }
.article-body ul { padding-left: var(--space-lg); list-style: disc; margin-bottom: var(--space-md); }
.article-body li { margin-bottom: var(--space-sm); }
.article-body img { max-width: 100%; border-radius: var(--radius-md); margin: var(--space-md) 0; }
.social-share { display: flex; gap: var(--space-sm); margin: var(--space-xl) 0; padding: var(--space-lg) 0; border-top: 1px solid var(--color-border); }
.social-share button {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}
.social-share button:hover { border-color: var(--color-accent); background: var(--color-surface-alt); }

/* --- Value Props --- */
.value-props {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.value-prop {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}
.value-prop-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  font-size: 1.3rem;
}
.value-prop h4 { font-size: 1rem; margin-bottom: var(--space-xs); }
.value-prop p { font-size: 0.85rem; color: var(--color-text-muted); margin: 0; }

/* --- Promo Banner --- */
.promo-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 280px;
}
.promo-banner-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
}
.promo-banner-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(255, 107, 74, 0.85), rgba(26, 77, 110, 0.7));
}
.promo-banner-content {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl);
  color: #fff;
  max-width: 480px;
}
.promo-banner-content h2 { color: #fff; font-size: 1.75rem; margin-bottom: var(--space-sm); }
.promo-banner-content p { color: rgba(255,255,255,0.9); margin-bottom: var(--space-lg); }

/* --- Accessibility --- */
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- Responsive Breakpoints --- */
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .trust-badges { grid-template-columns: repeat(4, 1fr); }
  .value-props { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 3rem; }
  h1 { font-size: 2.25rem; }
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .policy-layout { grid-template-columns: 240px 1fr; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .newsletter-form { width: 440px; }
}

@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .product-layout { grid-template-columns: 1fr 1fr; }
  .nav-links { display: flex; }
  .hamburger { display: none; }
  .hero-title { font-size: 3.5rem; }
  .container { padding: 0 var(--space-lg); }
}

@media (min-width: 1280px) {
  .hero { min-height: 600px; }
}

@media (max-width: 1023px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-search-bar { display: none; }
}

@media (max-width: 639px) {
  .hero { min-height: 440px; }
  .hero-title { font-size: 2rem; }
  .hero-content { padding: var(--space-2xl) var(--space-md); }
  .section { padding: var(--space-xl) 0; }
  .section-title { font-size: 1.5rem; }
  .product-title { font-size: 1.3rem; }
  .cart-drawer { width: 100%; max-width: 100%; }
  .sticky-atc { padding: var(--space-sm); }
  .sticky-atc-product img { width: 40px; height: 40px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .sort-bar { flex-direction: column; align-items: flex-start; }
}