/* ============================================
   DECO HOME GADGET — Smart Home Decor Storefront
   Design System: Modern Tech-Home Aesthetic
   Colors: Deep teal primary, warm amber accent
   Fonts: Space Grotesk (headings) + Inter (body)
   ============================================ */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); color: var(--color-text-primary); background: var(--color-bg); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Color palette — tech-home niche */
  --color-bg: #f7f8f6;
  --color-surface: #ffffff;
  --color-surface-alt: #eef1ee;
  --color-surface-dark: #1a2e2a;
  --color-border: #d8ddd9;
  --color-border-light: #e8ebe8;
  --color-text-primary: #1a2e2a;
  --color-text-secondary: #4a5a52;
  --color-text-muted: #8a9690;
  --color-accent: #0d6e5e;
  --color-accent-hover: #095448;
  --color-accent-light: #e0f0ec;
  --color-accent-fg: #ffffff;
  --color-amber: #d4933a;
  --color-amber-light: #f5ecd9;
  --color-success: #2d8659;
  --color-warning: #c47f17;
  --color-error: #c0392b;
  --color-sale: #c0392b;

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

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

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(26,46,42,0.08);
  --shadow-md: 0 4px 12px rgba(26,46,42,0.10);
  --shadow-lg: 0 12px 32px rgba(26,46,42,0.14);

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

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

/* --- Accessibility --- */
.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; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* --- Container --- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-md); }
@media (min-width: 768px) { .container { padding: 0 var(--space-lg); } }
@media (min-width: 1024px) { .container { padding: 0 var(--space-xl); } }

/* --- Buttons --- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm); padding: 12px 24px; border-radius: var(--radius-md); font-weight: 600; font-size: 15px; transition: all var(--transition-fast); white-space: nowrap; text-align: center; line-height: 1.4; }
.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-secondary { background: var(--color-surface); color: var(--color-text-primary); border: 1.5px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-ghost { background: transparent; color: var(--color-text-primary); padding: 8px 16px; }
.btn-ghost:hover { background: var(--color-surface-alt); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-full { 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: 12px; font-weight: 600; }
.badge-sale { background: var(--color-sale); color: #fff; }
.badge-new { background: var(--color-accent); color: var(--color-accent-fg); }
.badge-out { background: var(--color-text-muted); color: #fff; }
.badge-count { background: var(--color-amber); color: #fff; min-width: 20px; height: 20px; border-radius: var(--radius-full); font-size: 11px; padding: 0 6px; }

/* --- Announcement Bar --- */
.announcement-bar { background: var(--color-surface-dark); color: #fff; text-align: center; padding: 10px var(--space-md); font-size: 13px; font-weight: 500; letter-spacing: 0.3px; }
.announcement-bar a { color: var(--color-amber); font-weight: 600; }

/* --- Navigation --- */
.nav { position: sticky; top: 0; z-index: 100; background: var(--color-surface); border-bottom: 1px solid var(--color-border-light); transition: box-shadow var(--transition-base); }
.nav.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-height); gap: var(--space-md); }
.nav-links { flex: 1; justify-content: center; }
.nav-logo { font-family: var(--font-heading); font-size: 22px; font-weight: 700; color: var(--color-text-primary); letter-spacing: -0.5px; white-space: nowrap; }
.nav-logo span { color: var(--color-accent); }
.nav-links { display: none; align-items: center; gap: var(--space-md); }
.nav-link { font-size: 14px; font-weight: 500; color: var(--color-text-secondary); transition: color var(--transition-fast); position: relative; white-space: nowrap; }
.nav-link:hover, .nav-link.active { color: var(--color-accent); }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--color-accent); transition: width var(--transition-fast); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* --- Nav Dropdown --- */
.nav-dropdown { position: relative; }
.nav-dropdown-toggle { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.nav-dropdown-arrow { font-size: 9px; transition: transform var(--transition-fast); }
.nav-dropdown:hover .nav-dropdown-arrow { transform: rotate(180deg); }
.nav-dropdown-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); min-width: 220px; padding: var(--space-xs); opacity: 0; visibility: hidden; transition: all var(--transition-fast); z-index: 200; }
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dropdown-item { display: block; padding: 10px var(--space-md); font-size: 14px; font-weight: 500; color: var(--color-text-secondary); border-radius: var(--radius-sm); transition: all var(--transition-fast); white-space: nowrap; }
.nav-dropdown-item:hover { background: var(--color-surface-alt); color: var(--color-accent); }
.nav-dropdown-all { border-top: 1px solid var(--color-border-light); margin-top: var(--space-xs); padding-top: var(--space-sm); font-weight: 600; color: var(--color-accent); }

/* Mobile dropdown (tap to open) */
@media (max-width: 1023px) {
  .nav-dropdown-menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: none; min-width: auto; padding: 0 0 0 var(--space-md); display: none; }
  .nav-dropdown.open .nav-dropdown-menu { display: block; }
  .nav-dropdown-arrow { transition: none; }
}

/* Mobile menu dropdown items */
.mobile-menu .nav-dropdown-toggle { color: var(--color-text-primary); font-size: 16px; font-weight: 500; padding: var(--space-sm) 0; border-bottom: 1px solid var(--color-border-light); display: flex; justify-content: space-between; align-items: center; width: 100%; }
.mobile-menu .nav-dropdown-menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: none; min-width: auto; padding: 0; display: none; }
.mobile-menu .nav-dropdown.open .nav-dropdown-menu { display: block; }
.mobile-menu .nav-dropdown-item { padding: var(--space-sm) var(--space-md); font-size: 15px; border-bottom: 1px solid var(--color-border-light); border-radius: 0; }

.nav-actions { display: flex; align-items: center; gap: var(--space-sm); }
.nav-action-btn { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: var(--radius-md); color: var(--color-text-secondary); transition: all var(--transition-fast); position: relative; }
.nav-action-btn:hover { background: var(--color-surface-alt); color: var(--color-accent); }
.nav-action-btn svg { width: 22px; height: 22px; }
.cart-count-badge { position: absolute; top: 2px; right: 2px; }

/* Search in nav */
.nav-search { display: none; position: relative; flex: 0 1 200px; max-width: 200px; }
.nav-search input { width: 100%; padding: 10px 16px 10px 40px; border: 1.5px solid var(--color-border); border-radius: var(--radius-full); font-size: 14px; background: var(--color-surface-alt); transition: border-color var(--transition-fast); }
.nav-search input:focus { border-color: var(--color-accent); background: var(--color-surface); outline: none; }
.nav-search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--color-text-muted); }
.search-results-dropdown { position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); max-height: 400px; overflow-y: auto; display: none; z-index: 200; }
.search-results-dropdown.show { display: block; }
.search-item { display: flex; align-items: center; gap: var(--space-md); padding: var(--space-md); border-bottom: 1px solid var(--color-border-light); transition: background var(--transition-fast); }
.search-item:hover { background: var(--color-surface-alt); }
.search-item img { width: 50px; height: 50px; border-radius: var(--radius-sm); object-fit: cover; }
.search-item-info h4 { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.search-item-info p { font-size: 13px; color: var(--color-accent); font-weight: 600; }

@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-search { display: flex; }
  .hamburger { display: none; }
}

/* --- Hamburger / Mobile Menu --- */
.hamburger { display: flex; flex-direction: column; gap: 5px; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: var(--radius-md); }
.hamburger span { width: 22px; height: 2px; background: var(--color-text-primary); transition: all var(--transition-fast); }
.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); z-index: 300; transition: left var(--transition-base); overflow-y: auto; padding: var(--space-xl) var(--space-lg); box-shadow: var(--shadow-lg); }
.mobile-menu.open { left: 0; }
.mobile-menu-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: rgba(26,46,42,0.5); z-index: 250; display: none; }
.mobile-menu-overlay.show { display: block; }
.mobile-menu h3 { font-family: var(--font-heading); font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); margin: var(--space-lg) 0 var(--space-sm); }
.mobile-menu-link { display: block; padding: var(--space-sm) 0; font-size: 16px; font-weight: 500; color: var(--color-text-primary); border-bottom: 1px solid var(--color-border-light); }
.mobile-menu-link:hover { color: var(--color-accent); }
.mobile-menu-close { position: absolute; top: var(--space-md); right: var(--space-md); font-size: 24px; color: var(--color-text-muted); }

/* --- Hero --- */
.hero { position: relative; min-height: 520px; display: flex; align-items: center; background: linear-gradient(135deg, var(--color-surface-dark) 0%, #0d3d34 100%); overflow: hidden; }
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.35; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(90deg, rgba(26,46,42,0.85) 0%, rgba(26,46,42,0.4) 100%); }
.hero-content { position: relative; z-index: 2; padding: var(--space-3xl) 0; max-width: 640px; }
.hero-eyebrow { display: inline-block; padding: 6px 14px; background: rgba(212,147,58,0.2); border: 1px solid var(--color-amber); color: var(--color-amber); border-radius: var(--radius-full); font-size: 13px; font-weight: 600; letter-spacing: 0.5px; margin-bottom: var(--space-md); }
.hero-title { font-family: var(--font-heading); font-size: clamp(32px, 5vw, 52px); font-weight: 700; color: #fff; line-height: 1.1; margin-bottom: var(--space-md); letter-spacing: -1px; }
.hero-subtitle { font-size: 18px; color: rgba(255,255,255,0.85); margin-bottom: var(--space-xl); max-width: 520px; line-height: 1.6; }
.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-dark { background: var(--color-surface-dark); color: #fff; }
.section-header { text-align: center; margin-bottom: var(--space-xl); }
.section-title { font-family: var(--font-heading); font-size: clamp(26px, 3.5vw, 36px); font-weight: 700; color: var(--color-text-primary); margin-bottom: var(--space-sm); letter-spacing: -0.5px; }
.section-dark .section-title { color: #fff; }
.section-subtitle { font-size: 17px; color: var(--color-text-secondary); max-width: 600px; margin: 0 auto; }
.section-dark .section-subtitle { color: rgba(255,255,255,0.7); }
.section-eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--color-accent); margin-bottom: var(--space-sm); }

/* --- Grids --- */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--space-lg); }
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* --- Collection Card --- */
.collection-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4/3; background: var(--color-surface-alt); transition: transform var(--transition-base), box-shadow var(--transition-base); }
.collection-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.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(26,46,42,0.9)); }
.collection-card-overlay h3 { font-family: var(--font-heading); font-size: 22px; color: #fff; margin-bottom: 4px; }
.collection-card-overlay p { font-size: 14px; color: rgba(255,255,255,0.8); }
.collection-card-badge { position: absolute; top: var(--space-md); right: var(--space-md); background: var(--color-accent); color: #fff; padding: 4px 12px; border-radius: var(--radius-full); font-size: 12px; font-weight: 600; }

/* --- Product Card --- */
.product-card { background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; transition: transform var(--transition-base), box-shadow var(--transition-base); border: 1px solid var(--color-border-light); display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-card-img-wrap { position: relative; aspect-ratio: 1; overflow: hidden; background: var(--color-surface-alt); }
.product-card-img { width: 100%; height: 100%; object-fit: cover; transition: opacity var(--transition-base); }
.product-card-img-alt { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity var(--transition-base); }
.product-card:hover .product-card-img-alt { opacity: 1; }
.product-card-badges { position: absolute; top: var(--space-sm); left: var(--space-sm); display: flex; flex-direction: column; gap: 4px; z-index: 2; }
.product-card-quick-add { position: absolute; bottom: var(--space-sm); left: var(--space-sm); right: var(--space-sm); padding: 10px; background: var(--color-surface); border-radius: var(--radius-md); font-size: 14px; font-weight: 600; color: var(--color-text-primary); border: 1px solid var(--color-border); opacity: 0; transform: translateY(8px); transition: all var(--transition-fast); text-align: center; }
.product-card:hover .product-card-quick-add { opacity: 1; transform: translateY(0); }
.product-card-quick-add:hover { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.product-card-body { padding: var(--space-md); flex: 1; display: flex; flex-direction: column; }
.product-card-vendor { font-size: 12px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.product-card-title { font-size: 15px; font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-sm); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-card-title a:hover { color: var(--color-accent); }
.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: 17px; font-weight: 700; color: var(--color-text-primary); }
.product-card-compare { font-family: var(--font-mono); font-size: 14px; color: var(--color-text-muted); text-decoration: line-through; }
.product-card-rating { display: flex; align-items: center; gap: 4px; margin-bottom: var(--space-sm); }
.product-card-rating .stars { color: var(--color-amber); font-size: 14px; }
.product-card-rating .count { font-size: 12px; color: var(--color-text-muted); }

/* --- Breadcrumb --- */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-xs); padding: var(--space-md) 0; font-size: 13px; color: var(--color-text-muted); }
.breadcrumb-item a:hover { color: var(--color-accent); }
.breadcrumb-sep { color: var(--color-text-muted); }
.breadcrumb-item.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 var(--space-2xl); }
@media (min-width: 768px) { .product-layout { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .product-layout { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-2xl); } }

/* Gallery */
.product-gallery { position: sticky; top: calc(var(--header-height) + var(--space-md)); }
.gallery-main-wrap { border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface-alt); aspect-ratio: 1; margin-bottom: var(--space-md); position: relative; }
.gallery-main { width: 100%; height: 100%; object-fit: contain; cursor: zoom-in; }
.gallery-thumbs { display: flex; gap: var(--space-sm); overflow-x: auto; padding-bottom: var(--space-xs); }
.gallery-thumb { width: 72px; height: 72px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid transparent; flex-shrink: 0; cursor: pointer; transition: border-color var(--transition-fast); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb.active { border-color: var(--color-accent); }
.gallery-thumb:hover { border-color: var(--color-accent); }

/* Product Info */
.product-info { padding-top: var(--space-sm); }
.product-vendor { font-size: 13px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: var(--space-sm); }
.product-title { font-family: var(--font-heading); font-size: clamp(24px, 3vw, 32px); font-weight: 700; color: var(--color-text-primary); margin-bottom: var(--space-sm); line-height: 1.2; letter-spacing: -0.5px; }
.product-rating-row { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-md); }
.product-rating-row .stars { color: var(--color-amber); font-size: 16px; }
.product-rating-row .count { font-size: 14px; color: var(--color-text-muted); }
.product-price-wrap { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-md); }
.product-price { font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--color-text-primary); }
.product-compare-price { font-family: var(--font-mono); font-size: 18px; color: var(--color-text-muted); text-decoration: line-through; }
.product-save-badge { background: var(--color-sale); color: #fff; padding: 4px 10px; border-radius: var(--radius-full); font-size: 13px; font-weight: 600; }
.product-short-desc { font-size: 15px; color: var(--color-text-secondary); margin-bottom: var(--space-lg); line-height: 1.7; }

/* Option selectors */
.option-group { margin-bottom: var(--space-md); }
.option-label { display: block; font-size: 14px; font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-sm); }
.option-label span { color: var(--color-text-muted); font-weight: 400; }
.option-btns { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.option-btn { padding: 8px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); font-size: 14px; font-weight: 500; color: var(--color-text-secondary); 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-light); color: var(--color-accent); font-weight: 600; }
.option-btn.unavailable { opacity: 0.4; text-decoration: line-through; cursor: not-allowed; }

/* Quantity control */
.qty-control { display: inline-flex; align-items: center; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.qty-btn { width: 40px; height: 44px; font-size: 18px; color: var(--color-text-secondary); transition: background var(--transition-fast); }
.qty-btn:hover { background: var(--color-surface-alt); color: var(--color-accent); }
.qty-input { width: 50px; height: 44px; text-align: center; border: none; border-left: 1.5px solid var(--color-border); border-right: 1.5px solid var(--color-border); font-weight: 600; font-size: 15px; }
.qty-input:focus { outline: none; }

/* ATC area */
.product-atc-row { display: flex; gap: var(--space-md); margin: var(--space-lg) 0; align-items: center; flex-wrap: wrap; }
.product-atc-btn { flex: 1; min-width: 200px; }
.availability-msg { font-size: 14px; font-weight: 500; margin-bottom: var(--space-md); }
.availability-msg.in-stock { color: var(--color-success); }
.availability-msg.out-stock { color: var(--color-error); }

/* Trust badges row */
.trust-badges { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); padding: var(--space-lg); background: var(--color-surface-alt); border-radius: var(--radius-md); margin: var(--space-lg) 0; }
@media (min-width: 640px) { .trust-badges { grid-template-columns: repeat(4, 1fr); } }
.trust-item { text-align: center; }
.trust-item svg { width: 28px; height: 28px; color: var(--color-accent); margin: 0 auto var(--space-xs); }
.trust-item p { font-size: 12px; color: var(--color-text-secondary); font-weight: 500; }

/* Accordions */
.product-accordions { margin: var(--space-xl) 0; }
.accordion { border-bottom: 1px solid var(--color-border); }
.accordion-header { display: flex; justify-content: space-between; align-items: center; padding: var(--space-md) 0; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--color-text-primary); }
.accordion-header:hover { color: var(--color-accent); }
.accordion-icon { transition: transform var(--transition-fast); font-size: 20px; color: var(--color-text-muted); }
.accordion.open .accordion-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: 0 0 var(--space-md); font-size: 15px; color: var(--color-text-secondary); line-height: 1.7; }
.accordion-body-inner h3 { font-size: 16px; font-weight: 600; color: var(--color-text-primary); margin: var(--space-md) 0 var(--space-sm); }
.accordion-body-inner ul { list-style: disc; padding-left: var(--space-lg); margin: var(--space-sm) 0; }
.accordion-body-inner li { margin-bottom: 4px; }
.accordion-body-inner table { margin: var(--space-sm) 0; }
.accordion-body-inner table td { padding: 6px var(--space-sm); border-bottom: 1px solid var(--color-border-light); font-size: 14px; }
.accordion-body-inner table td:first-child { font-weight: 600; color: var(--color-text-primary); width: 40%; }

/* Sticky ATC */
.sticky-atc { position: fixed; bottom: 0; left: 0; right: 0; background: var(--color-surface); border-top: 1px solid var(--color-border); padding: var(--space-sm) var(--space-md); z-index: 90; transform: translateY(100%); transition: transform var(--transition-base); display: flex; align-items: center; gap: var(--space-md); box-shadow: 0 -4px 12px rgba(0,0,0,0.08); }
.sticky-atc.visible { transform: translateY(0); }
.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 h4 { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sticky-atc-product p { font-size: 13px; color: var(--color-accent); font-weight: 600; }
.sticky-atc-btn { flex-shrink: 0; }
@media (min-width: 768px) { .sticky-atc { padding: var(--space-sm) var(--space-xl); } }

/* --- Reviews --- */
.reviews-section { padding: var(--space-xl) 0; }
.reviews-summary { display: flex; align-items: center; gap: var(--space-xl); margin-bottom: var(--space-xl); flex-wrap: wrap; }
.reviews-avg { text-align: center; }
.reviews-avg .score { font-family: var(--font-heading); font-size: 48px; font-weight: 700; color: var(--color-text-primary); }
.reviews-avg .stars { color: var(--color-amber); font-size: 20px; margin: var(--space-xs) 0; }
.reviews-avg .count { font-size: 14px; color: var(--color-text-muted); }
.reviews-bars { flex: 1; min-width: 240px; }
.rating-bar { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: 6px; }
.rating-bar-label { font-size: 13px; color: var(--color-text-muted); width: 40px; }
.rating-bar-track { flex: 1; height: 8px; background: var(--color-surface-alt); border-radius: var(--radius-full); overflow: hidden; }
.rating-bar-fill { height: 100%; background: var(--color-amber); border-radius: var(--radius-full); transition: width var(--transition-base); }
.rating-bar-count { font-size: 13px; color: var(--color-text-muted); width: 30px; text-align: right; }

.review-card { background: var(--color-surface); border: 1px solid var(--color-border-light); border-radius: var(--radius-md); padding: var(--space-lg); margin-bottom: var(--space-md); }
.review-header { display: flex; justify-content: space-between; align-items: start; margin-bottom: var(--space-sm); }
.review-author { font-weight: 600; font-size: 15px; color: var(--color-text-primary); }
.review-verified { font-size: 12px; color: var(--color-success); display: flex; align-items: center; gap: 4px; }
.review-title { font-weight: 600; font-size: 15px; margin-bottom: var(--space-xs); }
.review-body { font-size: 14px; color: var(--color-text-secondary); line-height: 1.6; }
.review-date { font-size: 13px; color: var(--color-text-muted); }
.rating-stars { color: var(--color-amber); font-size: 16px; margin-bottom: var(--space-xs); }

/* --- Cart Drawer --- */
.cart-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: rgba(26,46,42,0.5); 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: 90%; max-width: 420px; height: 100vh; background: var(--color-surface); z-index: 500; transition: right var(--transition-base); display: flex; flex-direction: column; }
.cart-drawer.open { right: 0; }
.cart-drawer-header { display: flex; justify-content: space-between; align-items: center; padding: var(--space-lg); border-bottom: 1px solid var(--color-border-light); }
.cart-drawer-header h2 { font-family: var(--font-heading); font-size: 20px; font-weight: 700; }
.cart-close { font-size: 24px; color: var(--color-text-muted); width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); }
.cart-close:hover { background: var(--color-surface-alt); }
.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-light); }
.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-title { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.cart-item-variant { font-size: 13px; color: var(--color-text-muted); margin-bottom: var(--space-sm); }
.cart-item-price { font-family: var(--font-mono); font-size: 15px; font-weight: 700; color: var(--color-text-primary); }
.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: 13px; color: var(--color-error); margin-left: auto; }
.cart-item-remove:hover { text-decoration: underline; }
.cart-empty { text-align: center; padding: var(--space-2xl) var(--space-lg); }
.cart-empty svg { width: 64px; height: 64px; color: var(--color-text-muted); margin: 0 auto var(--space-md); }
.cart-empty p { color: var(--color-text-muted); margin-bottom: var(--space-lg); }
.cart-footer { padding: var(--space-lg); border-top: 1px solid var(--color-border-light); }
.cart-subtotal { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-sm); }
.cart-subtotal span { font-size: 15px; color: var(--color-text-secondary); }
.cart-subtotal strong { font-family: var(--font-mono); font-size: 22px; font-weight: 700; }
.cart-tax-note { font-size: 13px; color: var(--color-text-muted); margin-bottom: var(--space-md); text-align: center; }
.cart-footer .btn { margin-bottom: var(--space-sm); }

/* --- Toast --- */
.toast { position: fixed; bottom: var(--space-xl); left: 50%; transform: translateX(-50%) translateY(100px); background: var(--color-surface-dark); color: #fff; padding: var(--space-md) var(--space-lg); border-radius: var(--radius-md); font-size: 15px; font-weight: 500; box-shadow: var(--shadow-lg); z-index: 600; opacity: 0; transition: all var(--transition-base); max-width: 90%; }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-error); }

/* --- Footer --- */
.footer { background: var(--color-surface-dark); color: rgba(255,255,255,0.7); padding: var(--space-2xl) 0 var(--space-lg); }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-xl); margin-bottom: var(--space-xl); }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-logo { font-family: var(--font-heading); font-size: 24px; font-weight: 700; color: #fff; margin-bottom: var(--space-md); }
.footer-logo span { color: var(--color-amber); }
.footer-desc { font-size: 14px; line-height: 1.7; margin-bottom: var(--space-md); max-width: 320px; }
.footer-col h4 { font-family: var(--font-heading); font-size: 15px; font-weight: 600; color: #fff; margin-bottom: var(--space-md); text-transform: uppercase; letter-spacing: 0.5px; }
.footer-col a { display: block; font-size: 14px; padding: 4px 0; color: rgba(255,255,255,0.6); transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--color-amber); }
.footer-contact-item { display: flex; align-items: start; gap: var(--space-sm); font-size: 14px; margin-bottom: var(--space-sm); }
.footer-contact-item svg { width: 18px; height: 18px; color: var(--color-amber); flex-shrink: 0; margin-top: 2px; }
.social-links { display: flex; gap: var(--space-sm); margin-top: var(--space-md); }
.social-links a { width: 40px; height: 40px; border-radius: var(--radius-md); background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; transition: background var(--transition-fast); }
.social-links a:hover { background: var(--color-accent); }
.social-links svg { width: 20px; height: 20px; color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: var(--space-lg); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-md); font-size: 13px; }
.footer-payments { display: flex; gap: var(--space-sm); align-items: center; }
.footer-payments span { font-size: 11px; padding: 4px 8px; background: rgba(255,255,255,0.08); border-radius: var(--radius-sm); font-weight: 600; }

/* --- Collection Page --- */
.collection-hero { position: relative; min-height: 240px; display: flex; align-items: center; justify-content: center; background: var(--color-surface-dark); overflow: hidden; }
.collection-hero img { position: absolute; width: 100%; height: 100%; object-fit: cover; opacity: 0.3; }
.collection-hero-content { position: relative; z-index: 2; text-align: center; padding: var(--space-2xl) var(--space-md); }
.collection-hero-content h1 { font-family: var(--font-heading); font-size: clamp(28px, 4vw, 40px); font-weight: 700; color: #fff; margin-bottom: var(--space-sm); }
.collection-hero-content p { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto; }

.sort-bar { display: flex; justify-content: space-between; align-items: center; padding: var(--space-md) 0; border-bottom: 1px solid var(--color-border-light); margin-bottom: var(--space-lg); flex-wrap: wrap; gap: var(--space-md); }
.sort-bar-left { font-size: 15px; color: var(--color-text-secondary); }
.sort-bar-left strong { color: var(--color-text-primary); }
.sort-select { padding: 8px 14px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); font-size: 14px; background: var(--color-surface); cursor: pointer; }
.sort-select:focus { border-color: var(--color-accent); outline: none; }

.filter-chips { display: flex; gap: var(--space-sm); flex-wrap: wrap; margin-bottom: var(--space-lg); }
.filter-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; background: var(--color-accent-light); color: var(--color-accent); border-radius: var(--radius-full); font-size: 13px; font-weight: 500; }
.filter-chip button { font-size: 16px; line-height: 1; }

/* --- Pagination --- */
.pagination { display: flex; justify-content: center; gap: var(--space-xs); margin: var(--space-xl) 0; }
.pagination-btn { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 14px; font-weight: 500; color: var(--color-text-secondary); transition: all var(--transition-fast); }
.pagination-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.pagination-btn.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* --- Search Page --- */
.search-page { padding: var(--space-2xl) 0; }
.search-input-wrap { position: relative; max-width: 600px; margin: 0 auto var(--space-xl); }
.search-input-wrap input { width: 100%; padding: 14px 20px 14px 48px; border: 2px solid var(--color-border); border-radius: var(--radius-full); font-size: 16px; }
.search-input-wrap input:focus { border-color: var(--color-accent); outline: none; }
.search-input-wrap svg { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); width: 22px; height: 22px; color: var(--color-text-muted); }
.search-empty { text-align: center; padding: var(--space-2xl) 0; }
.search-empty h3 { font-family: var(--font-heading); font-size: 24px; margin-bottom: var(--space-sm); }
.search-empty p { color: var(--color-text-muted); margin-bottom: var(--space-lg); }

/* --- 404 Page --- */
.error-page { text-align: center; padding: var(--space-3xl) 0; }
.error-page h1 { font-family: var(--font-heading); font-size: clamp(60px, 10vw, 120px); font-weight: 700; color: var(--color-accent); line-height: 1; margin-bottom: var(--space-md); }
.error-page h2 { font-family: var(--font-heading); font-size: 24px; margin-bottom: var(--space-md); }
.error-page p { color: var(--color-text-secondary); margin-bottom: var(--space-lg); }

/* --- Policy Pages --- */
.policy-layout { display: grid; grid-template-columns: 1fr; gap: var(--space-xl); padding: var(--space-lg) 0 var(--space-2xl); }
@media (min-width: 768px) { .policy-layout { grid-template-columns: 240px 1fr; } }
.policy-sidebar { }
.policy-sidebar h3 { font-family: var(--font-heading); font-size: 15px; font-weight: 600; margin-bottom: var(--space-md); text-transform: uppercase; letter-spacing: 0.5px; }
.policy-sidebar a { display: block; padding: var(--space-sm) 0; font-size: 14px; color: var(--color-text-secondary); border-bottom: 1px solid var(--color-border-light); }
.policy-sidebar a:hover, .policy-sidebar a.active { color: var(--color-accent); font-weight: 600; }
.policy-content { max-width: 800px; }
.policy-content h1 { font-family: var(--font-heading); font-size: 32px; font-weight: 700; margin-bottom: var(--space-lg); }
.policy-content h2 { font-family: var(--font-heading); font-size: 22px; font-weight: 600; margin: var(--space-xl) 0 var(--space-sm); }
.policy-content p { font-size: 15px; color: var(--color-text-secondary); margin-bottom: var(--space-md); line-height: 1.7; }
.policy-content ul { list-style: disc; padding-left: var(--space-lg); margin-bottom: var(--space-md); }
.policy-content li { font-size: 15px; color: var(--color-text-secondary); margin-bottom: 6px; line-height: 1.6; }
.policy-updated { font-size: 14px; color: var(--color-text-muted); margin-bottom: var(--space-lg); }

/* --- Page Content --- */
.page-content { max-width: 800px; margin: 0 auto; padding: var(--space-lg) 0 var(--space-2xl); }
.page-content h1 { font-family: var(--font-heading); font-size: 32px; font-weight: 700; margin-bottom: var(--space-lg); }
.page-content h2 { font-family: var(--font-heading); font-size: 22px; font-weight: 600; margin: var(--space-xl) 0 var(--space-sm); }
.page-content p { font-size: 16px; color: var(--color-text-secondary); margin-bottom: var(--space-md); line-height: 1.8; }
.page-content ul { list-style: disc; padding-left: var(--space-lg); margin-bottom: var(--space-md); }
.page-content li { font-size: 16px; color: var(--color-text-secondary); margin-bottom: var(--space-sm); line-height: 1.7; }
.page-content img { border-radius: var(--radius-md); margin: var(--space-md) 0; }

/* --- Contact Form --- */
.contact-form { max-width: 600px; margin: var(--space-lg) 0; }
.form-group { margin-bottom: var(--space-md); }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: var(--space-xs); }
.form-group label .required { color: var(--color-error); }
.form-input { width: 100%; padding: 12px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); font-size: 15px; transition: border-color var(--transition-fast); }
.form-input:focus { border-color: var(--color-accent); outline: none; }
.form-textarea { min-height: 120px; resize: vertical; }
.form-error { font-size: 13px; color: var(--color-error); margin-top: 4px; display: none; }
.form-error.show { display: block; }
.form-success { padding: var(--space-md) var(--space-lg); background: var(--color-accent-light); border: 1px solid var(--color-accent); border-radius: var(--radius-md); color: var(--color-accent); font-weight: 500; margin-bottom: var(--space-lg); display: none; }
.form-success.show { display: block; }

/* --- FAQ Section --- */
.faq-section { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border-light); }
.faq-question { display: flex; justify-content: space-between; align-items: center; padding: var(--space-md) 0; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--color-text-primary); }
.faq-question:hover { color: var(--color-accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-base); }
.faq-answer-inner { padding: 0 0 var(--space-md); font-size: 15px; color: var(--color-text-secondary); line-height: 1.7; }

/* --- Value Props / Why Choose Us --- */
.value-props { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
@media (min-width: 768px) { .value-props { grid-template-columns: repeat(4, 1fr); } }
.value-prop { text-align: center; padding: var(--space-lg); }
.value-prop svg { width: 40px; height: 40px; color: var(--color-accent); margin: 0 auto var(--space-md); }
.value-prop h3 { font-family: var(--font-heading); font-size: 17px; font-weight: 600; margin-bottom: var(--space-xs); }
.value-prop p { font-size: 14px; color: var(--color-text-secondary); }

/* --- Newsletter --- */
.newsletter { background: var(--color-accent-light); border-radius: var(--radius-lg); padding: var(--space-2xl) var(--space-lg); text-align: center; margin: var(--space-xl) 0; }
.newsletter h3 { font-family: var(--font-heading); font-size: 24px; font-weight: 700; margin-bottom: var(--space-sm); }
.newsletter p { color: var(--color-text-secondary); margin-bottom: var(--space-lg); }
.newsletter-form { display: flex; gap: var(--space-sm); max-width: 480px; margin: 0 auto; flex-wrap: wrap; }
.newsletter-form input { flex: 1; min-width: 200px; padding: 12px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); font-size: 15px; }
.newsletter-form input:focus { border-color: var(--color-accent); outline: none; }

/* --- Blog --- */
.blog-card { background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border-light); transition: transform var(--transition-base), box-shadow var(--transition-base); }
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.blog-card-body { padding: var(--space-lg); }
.blog-card-date { font-size: 13px; color: var(--color-text-muted); margin-bottom: var(--space-sm); }
.blog-card h3 { font-family: var(--font-heading); font-size: 18px; font-weight: 600; margin-bottom: var(--space-sm); line-height: 1.3; }
.blog-card p { font-size: 14px; color: var(--color-text-secondary); margin-bottom: var(--space-md); }
.blog-card .read-more { font-size: 14px; font-weight: 600; color: var(--color-accent); }

/* --- Skeleton --- */
.skeleton { background: linear-gradient(90deg, var(--color-surface-alt) 25%, var(--color-border-light) 50%, var(--color-surface-alt) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
@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 0.4s ease; }
.slide-up { animation: slideUp 0.5s ease; }

/* --- Spinner --- */
.spinner { width: 20px; height: 20px; border: 2px solid var(--color-border); border-top-color: var(--color-accent); border-radius: 50%; animation: spin 0.8s linear infinite; }

/* --- Related Products --- */
.related-products { padding: var(--space-xl) 0; }

/* --- Promotional Banner --- */
.promo-banner { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface-dark); min-height: 320px; display: flex; align-items: center; }
.promo-banner img { position: absolute; width: 100%; height: 100%; object-fit: cover; opacity: 0.4; }
.promo-banner-content { position: relative; z-index: 2; padding: var(--space-2xl); max-width: 500px; }
.promo-banner-content h2 { font-family: var(--font-heading); font-size: 28px; font-weight: 700; color: #fff; margin-bottom: var(--space-sm); }
.promo-banner-content p { color: rgba(255,255,255,0.8); margin-bottom: var(--space-lg); }

/* --- Educational Section --- */
.edu-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
@media (min-width: 768px) { .edu-grid { grid-template-columns: repeat(3, 1fr); } }
.edu-card { background: var(--color-surface); border: 1px solid var(--color-border-light); border-radius: var(--radius-md); padding: var(--space-lg); transition: border-color var(--transition-fast); }
.edu-card:hover { border-color: var(--color-accent); }
.edu-card h3 { font-family: var(--font-heading); font-size: 18px; font-weight: 600; margin-bottom: var(--space-sm); }
.edu-card p { font-size: 14px; color: var(--color-text-secondary); margin-bottom: var(--space-md); }
.edu-card a { font-size: 14px; font-weight: 600; color: var(--color-accent); }

/* --- Responsive helpers --- */
.hide-mobile { display: none; }
@media (min-width: 768px) { .hide-mobile { display: block; } .hide-desktop { display: none; } }
.text-center { text-align: center; }
.mt-xl { margin-top: var(--space-xl); }
.mb-xl { margin-bottom: var(--space-xl); }