/* ============================================================
   Studio Lighting Kits — Design System
   Niche: professional studio & video LED lighting (tech / pro-creative)
   Personality: precise, technical, confident, studio-grade
   ============================================================ */

:root {
  /* Palette — deep studio charcoal + warm tungsten amber accent */
  --color-bg:             #0f1114;
  --color-bg-2:           #14171c;
  --color-surface:        #1a1e24;
  --color-surface-alt:    #12151a;
  --color-surface-hi:     #232830;
  --color-border:         #2a3038;
  --color-border-hi:      #3a424d;
  --color-text-primary:   #f5f7fa;
  --color-text-secondary: #b9c1cc;
  --color-text-muted:     #7c8797;
  --color-accent:         #f5a623;   /* tungsten amber */
  --color-accent-2:       #ffce6b;
  --color-accent-hover:   #ffb838;
  --color-accent-fg:      #14100a;
  --color-cool:           #5bc8ff;   /* daylight 5600K cool */
  --color-success:        #37d67a;
  --color-warning:        #ffb020;
  --color-error:          #ff5c6c;

  --font-heading: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius-sm: 6px; --radius-md: 12px; --radius-lg: 20px; --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 8px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.5);
  --shadow-glow: 0 0 40px rgba(245,166,35,.25);

  --space-xs: 4px; --space-sm: 8px; --space-md: 16px; --space-lg: 24px;
  --space-xl: 40px; --space-2xl: 64px; --space-3xl: 96px;
  --transition-fast: 150ms ease; --transition-base: 250ms ease;
  --maxw: 1240px;
}

*, *::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);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  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; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
ul { list-style: none; }
h1,h2,h3,h4,h5 { font-family: var(--font-heading); color: var(--color-text-primary); line-height: 1.15; font-weight: 700; letter-spacing: -0.02em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: var(--space-2xl) 0; }
.section-alt { background: var(--color-surface-alt); }
.section-header { text-align: center; max-width: 620px; margin: 0 auto var(--space-xl); }
.section-title { font-size: clamp(1.6rem, 4vw, 2.4rem); }
.section-subtitle { color: var(--color-text-muted); margin-top: var(--space-sm); font-size: 1.05rem; }
.eyebrow { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .18em; text-transform: uppercase; color: var(--color-accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-full); font-weight: 600; font-size: .95rem;
  transition: all var(--transition-base); white-space: nowrap; border: 1px solid transparent; }
.btn-primary { background: var(--color-accent); color: var(--color-accent-fg); box-shadow: var(--shadow-glow); }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
.btn-secondary { background: var(--color-surface-hi); color: var(--color-text-primary); border-color: var(--color-border-hi); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-ghost { background: transparent; color: var(--color-text-secondary); border-color: var(--color-border); }
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-sm { padding: 8px 16px; font-size: .85rem; }
.btn-lg { padding: 15px 30px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: var(--radius-full);
  font-size: .72rem; font-weight: 700; font-family: var(--font-mono); letter-spacing: .03em; }
.badge-sale { background: rgba(255,92,108,.15); color: var(--color-error); }
.badge-new { background: rgba(91,200,255,.15); color: var(--color-cool); }
.badge-out { background: rgba(124,135,151,.18); color: var(--color-text-muted); }
.badge-accent { background: var(--color-accent); color: var(--color-accent-fg); }

/* Announcement */
.announcement-bar { background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  color: var(--color-accent-fg); text-align: center; font-size: .82rem; font-weight: 600;
  padding: 8px 12px; letter-spacing: .02em; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(15,17,20,.9); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border); }
.nav-inner { display: flex; align-items: center; gap: var(--space-lg); height: 68px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 800;
  color: var(--color-text-primary); font-size: 1.15rem; letter-spacing: -.02em; white-space: nowrap; flex-shrink: 0; }
.nav-logo .logo-mark { width: 30px; height: 30px; flex-shrink: 0; }
.nav-logo .logo-text { white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links > li > a { display: block; padding: 8px 14px; border-radius: var(--radius-sm); font-size: .92rem;
  font-weight: 500; color: var(--color-text-secondary); transition: color var(--transition-fast); }
.nav-links > li > a:hover { color: var(--color-accent); }
.nav-dropdown { position: relative; }
.nav-dropdown-menu { position: absolute; top: 100%; left: 0; min-width: 230px; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(8px); transition: all var(--transition-base); }
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown-menu a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); font-size: .9rem; }
.nav-dropdown-menu a:hover { background: var(--color-surface-hi); color: var(--color-accent); }
.nav-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn { width: 42px; height: 42px; display: grid; place-items: center; border-radius: var(--radius-full);
  color: var(--color-text-secondary); transition: all var(--transition-fast); position: relative; }
.icon-btn:hover { background: var(--color-surface-hi); color: var(--color-accent); }
.cart-count { position: absolute; top: 2px; right: 2px; min-width: 18px; height: 18px; padding: 0 4px;
  background: var(--color-accent); color: var(--color-accent-fg); border-radius: var(--radius-full);
  font-size: .68rem; font-weight: 800; display: grid; place-items: center; font-family: var(--font-mono); }
.hamburger { display: none; }

/* Mobile menu */
.mobile-menu { position: fixed; inset: 0 0 0 auto; width: min(84vw, 340px); background: var(--color-surface);
  z-index: 200; transform: translateX(100%); transition: transform var(--transition-base);
  padding: var(--space-lg); overflow-y: auto; border-left: 1px solid var(--color-border); }
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 199; opacity: 0;
  visibility: hidden; transition: opacity var(--transition-base); }
.mobile-menu-overlay.open { opacity: 1; visibility: visible; }
.mobile-menu h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--color-text-muted);
  margin: var(--space-lg) 0 var(--space-sm); font-family: var(--font-mono); }
.mobile-menu a { display: block; padding: 11px 0; font-size: 1.05rem; color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border); }
.mobile-menu-close { float: right; font-size: 1.6rem; color: var(--color-text-muted); }

/* Search bar */
.search-panel { position: fixed; top: 0; left: 0; right: 0; background: var(--color-surface); z-index: 150;
  padding: var(--space-lg) 0; border-bottom: 1px solid var(--color-border); transform: translateY(-100%);
  transition: transform var(--transition-base); box-shadow: var(--shadow-lg); }
.search-panel.open { transform: translateY(0); }
.search-form { display: flex; gap: 10px; align-items: center; }
.search-input { flex: 1; background: var(--color-bg); border: 1px solid var(--color-border); color: var(--color-text-primary);
  padding: 14px 18px; border-radius: var(--radius-full); }
.search-input:focus { outline: none; border-color: var(--color-accent); }
.search-results { margin-top: var(--space-md); display: grid; gap: 8px; max-height: 60vh; overflow-y: auto; }
.search-item { display: flex; gap: 12px; align-items: center; padding: 10px; border-radius: var(--radius-md);
  transition: background var(--transition-fast); }
.search-item:hover { background: var(--color-surface-hi); }
.search-item img { width: 54px; height: 54px; object-fit: cover; border-radius: var(--radius-sm); }
.search-item .si-price { margin-left: auto; font-family: var(--font-mono); color: var(--color-accent); }

/* Hero */
.hero { position: relative; min-height: 78vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(105deg, rgba(15,17,20,.94) 0%, rgba(15,17,20,.72) 45%, rgba(15,17,20,.25) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 640px; padding: var(--space-2xl) 0; }
.hero-title { font-size: clamp(2.2rem, 6vw, 4rem); margin: var(--space-md) 0; color: #fff; }
.hero-title .accent { color: var(--color-accent); }
.hero-subtitle { font-size: clamp(1rem, 2.4vw, 1.25rem); color: var(--color-text-secondary); max-width: 520px; }
.hero-actions { display: flex; gap: var(--space-md); margin-top: var(--space-xl); flex-wrap: wrap; }
.hero-stats { display: flex; gap: var(--space-xl); margin-top: var(--space-2xl); flex-wrap: wrap; }
.hero-stat .num { font-family: var(--font-heading); font-size: 1.8rem; color: var(--color-accent); font-weight: 800; }
.hero-stat .lbl { font-size: .82rem; color: var(--color-text-muted); }

/* Grids */
.grid-auto { display: grid; gap: var(--space-lg); grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.grid-2 { display: grid; gap: var(--space-lg); grid-template-columns: repeat(2, 1fr); }
.grid-3 { display: grid; gap: var(--space-lg); grid-template-columns: repeat(3, 1fr); }
.grid-4 { display: grid; gap: var(--space-lg); grid-template-columns: repeat(4, 1fr); }

/* Product card */
.product-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--transition-base); display: flex; flex-direction: column; }
.product-card:hover { border-color: var(--color-border-hi); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.product-card-media { position: relative; aspect-ratio: 1/1; overflow: hidden; background: var(--color-surface-alt); }
.product-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-base); }
.product-card:hover .product-card-media img { transform: scale(1.05); }
.product-card-badges { position: absolute; top: 10px; left: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.product-card-body { padding: var(--space-md); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.product-card-vendor { font-size: .72rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .08em; font-family: var(--font-mono); }
.product-card-title { font-size: .98rem; font-weight: 600; color: var(--color-text-primary); line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-card-price { display: flex; align-items: baseline; gap: 8px; margin-top: auto; padding-top: 8px; }
.product-card-price .price { font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; color: var(--color-accent); }
.product-card-price .compare { font-size: .85rem; color: var(--color-text-muted); text-decoration: line-through; }
.product-card .btn { margin-top: 10px; }

/* Collection card */
.collection-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4/3;
  display: flex; align-items: flex-end; border: 1px solid var(--color-border); }
.collection-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-base); }
.collection-card:hover img { transform: scale(1.06); }
.collection-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,17,20,.92), transparent 70%); }
.collection-card-body { position: relative; z-index: 1; padding: var(--space-lg); width: 100%; }
.collection-card-body h3 { color: #fff; font-size: 1.25rem; }
.collection-card-body .count { font-size: .82rem; color: var(--color-accent-2); font-family: var(--font-mono); }

/* Placeholder media (no image) */
.media-fallback { display: grid; place-items: center; width: 100%; height: 100%;
  background: radial-gradient(circle at 50% 30%, var(--color-surface-hi), var(--color-surface-alt));
  color: var(--color-border-hi); }
.media-fallback svg { width: 40%; max-width: 90px; opacity: .5; }

/* Breadcrumb */
.breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: .82rem; color: var(--color-text-muted);
  padding: var(--space-md) 0; font-family: var(--font-mono); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { opacity: .5; }

/* Collection page */
.collection-hero { position: relative; padding: var(--space-2xl) 0; border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt); }
.collection-hero h1 { font-size: clamp(1.8rem, 5vw, 3rem); }
.collection-hero p { color: var(--color-text-secondary); max-width: 620px; margin-top: 10px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md);
  padding: var(--space-md) 0; flex-wrap: wrap; }
.toolbar .result-count { font-size: .88rem; color: var(--color-text-muted); font-family: var(--font-mono); }
.toolbar-controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.select-styled { background: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-text-primary);
  padding: 9px 14px; border-radius: var(--radius-full); font-size: .88rem; }
.select-styled:focus { outline: none; border-color: var(--color-accent); }
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: var(--space-2xl); flex-wrap: wrap; }
.pagination-btn { min-width: 42px; height: 42px; padding: 0 12px; display: grid; place-items: center;
  border: 1px solid var(--color-border); border-radius: var(--radius-md); font-family: var(--font-mono); font-size: .9rem;
  color: var(--color-text-secondary); transition: all var(--transition-fast); }
.pagination-btn:hover, .pagination-btn.active { border-color: var(--color-accent); color: var(--color-accent); }
.pagination-btn.active { background: var(--color-accent); color: var(--color-accent-fg); }

/* Product page */
.product-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--space-2xl); align-items: start; padding: var(--space-lg) 0 var(--space-2xl); }
.product-gallery { position: sticky; top: 88px; }
.gallery-main-wrap { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border);
  background: var(--color-surface-alt); aspect-ratio: 1/1; }
.gallery-main-wrap img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-top: 12px; }
.gallery-thumb { aspect-ratio: 1/1; border-radius: var(--radius-md); overflow: hidden; border: 2px solid var(--color-border);
  cursor: pointer; background: var(--color-surface-alt); 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-family: var(--font-mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--color-accent); }
.product-title { font-size: clamp(1.5rem, 3.5vw, 2.1rem); }
.product-rating-row { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: var(--color-text-muted); }
.rating-stars { color: var(--color-accent); letter-spacing: 2px; }
.product-price-wrap { display: flex; align-items: baseline; gap: 12px; }
.product-price { font-family: var(--font-mono); font-size: 1.8rem; font-weight: 700; color: var(--color-text-primary); }
.product-compare-price { font-size: 1.1rem; color: var(--color-text-muted); text-decoration: line-through; }
.option-group { display: flex; flex-direction: column; gap: 8px; }
.option-label { font-size: .85rem; font-weight: 600; color: var(--color-text-primary); }
.option-label span { color: var(--color-text-muted); font-weight: 400; }
.option-btns { display: flex; flex-wrap: wrap; gap: 8px; }
.option-btn { padding: 9px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-full);
  font-size: .88rem; color: var(--color-text-secondary); transition: all var(--transition-fast); background: var(--color-surface); }
.option-btn:hover { border-color: var(--color-border-hi); }
.option-btn.active { border-color: var(--color-accent); background: var(--color-accent); color: var(--color-accent-fg); font-weight: 600; }
.qty-control { display: inline-flex; align-items: center; border: 1px solid var(--color-border); border-radius: var(--radius-full); overflow: hidden; }
.qty-btn { width: 42px; height: 46px; font-size: 1.2rem; color: var(--color-text-secondary); }
.qty-btn:hover { color: var(--color-accent); }
.qty-input { width: 48px; height: 46px; text-align: center; background: transparent; border: none; color: var(--color-text-primary); font-family: var(--font-mono); }
.qty-input:focus { outline: none; }
.atc-row { display: flex; gap: 10px; flex-wrap: wrap; }
.atc-row .btn { flex: 1; min-width: 160px; }
.availability-msg { font-size: .88rem; display: flex; align-items: center; gap: 8px; }
.availability-msg .dot { width: 8px; height: 8px; border-radius: 50%; }
.availability-msg.in .dot { background: var(--color-success); }
.availability-msg.low .dot { background: var(--color-warning); }
.availability-msg.out .dot { background: var(--color-text-muted); }
.product-short-desc { color: var(--color-text-secondary); border-top: 1px solid var(--color-border); padding-top: var(--space-md); }
.product-accordions { border-top: 1px solid var(--color-border); }
.accordion { border-bottom: 1px solid var(--color-border); }
.accordion-head { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 16px 0;
  font-weight: 600; color: var(--color-text-primary); font-size: 1rem; }
.accordion-head .icon { transition: transform var(--transition-fast); color: var(--color-accent); }
.accordion.open .accordion-head .icon { transform: rotate(45deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height var(--transition-base); }
.accordion.open .accordion-body { max-height: 900px; }
.accordion-body-inner { padding-bottom: 16px; color: var(--color-text-secondary); }
.accordion-body-inner ul { list-style: disc; padding-left: 20px; }

/* Trust badges */
.trust-badges { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
.trust-item { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; padding: var(--space-lg);
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.trust-item svg { width: 34px; height: 34px; color: var(--color-accent); }
.trust-item h4 { font-size: .98rem; }
.trust-item p { font-size: .82rem; color: var(--color-text-muted); }

/* Sticky ATC */
.sticky-atc { position: fixed; bottom: 0; left: 0; right: 0; z-index: 90; background: rgba(20,23,28,.97);
  backdrop-filter: blur(12px); border-top: 1px solid var(--color-border); padding: 12px 0;
  transform: translateY(110%); transition: transform var(--transition-base); }
.sticky-atc.visible { transform: translateY(0); }
.sticky-atc-inner { display: flex; align-items: center; gap: var(--space-md); }
.sticky-atc-product { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; }
.sticky-atc-product img { width: 46px; height: 46px; object-fit: cover; border-radius: var(--radius-sm); }
.sticky-atc-product .st-title { font-size: .9rem; color: var(--color-text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sticky-atc-product .st-price { font-family: var(--font-mono); color: var(--color-accent); font-weight: 700; }

/* Reviews */
.reviews-summary { display: grid; grid-template-columns: auto 1fr; gap: var(--space-2xl); align-items: center;
  padding: var(--space-xl); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.reviews-avg { text-align: center; }
.reviews-score { font-family: var(--font-heading); font-size: 3.4rem; font-weight: 800; color: var(--color-text-primary); line-height: 1; }
.reviews-bars { display: flex; flex-direction: column; gap: 6px; }
.rating-bar { display: flex; align-items: center; gap: 10px; font-size: .82rem; color: var(--color-text-muted); }
.rating-bar .track { flex: 1; height: 8px; background: var(--color-surface-hi); border-radius: var(--radius-full); overflow: hidden; }
.rating-bar .fill { height: 100%; background: var(--color-accent); }
.review-card { padding: var(--space-lg); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.review-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; flex-wrap: wrap; gap: 6px; }
.review-author { font-weight: 600; color: var(--color-text-primary); }
.review-verified { font-size: .72rem; color: var(--color-success); font-family: var(--font-mono); }
.review-title { font-weight: 600; color: var(--color-text-primary); margin: 6px 0; }
.review-body { color: var(--color-text-secondary); font-size: .92rem; }
.review-date { font-size: .78rem; color: var(--color-text-muted); font-family: var(--font-mono); }

/* Cart drawer */
.cart-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 210; opacity: 0; visibility: hidden; transition: opacity var(--transition-base); }
.cart-overlay.open { opacity: 1; visibility: visible; }
.cart-drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(92vw, 420px); background: var(--color-surface);
  z-index: 211; transform: translateX(100%); transition: transform var(--transition-base); display: flex; flex-direction: column;
  border-left: 1px solid var(--color-border); }
.cart-drawer.open { transform: translateX(0); }
.cart-drawer-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-lg); border-bottom: 1px solid var(--color-border); }
.cart-drawer-header h2 { font-size: 1.2rem; display: flex; align-items: center; gap: 10px; }
.cart-lines { flex: 1; overflow-y: auto; padding: var(--space-md) var(--space-lg); display: flex; flex-direction: column; gap: var(--space-md); }
.cart-item { display: grid; grid-template-columns: 72px 1fr auto; gap: 12px; padding-bottom: var(--space-md); border-bottom: 1px solid var(--color-border); }
.cart-item img { width: 72px; height: 72px; object-fit: cover; border-radius: var(--radius-md); background: var(--color-surface-alt); }
.cart-item-title { font-size: .9rem; color: var(--color-text-primary); font-weight: 600; }
.cart-item-variant { font-size: .78rem; color: var(--color-text-muted); }
.cart-item-price { font-family: var(--font-mono); color: var(--color-accent); font-size: .9rem; margin-top: 4px; }
.cart-item-remove { font-size: .76rem; color: var(--color-text-muted); text-decoration: underline; margin-top: 6px; }
.cart-item-remove:hover { color: var(--color-error); }
.cart-qty { display: inline-flex; align-items: center; border: 1px solid var(--color-border); border-radius: var(--radius-full); }
.cart-qty button { width: 30px; height: 30px; color: var(--color-text-secondary); }
.cart-qty span { min-width: 26px; text-align: center; font-family: var(--font-mono); font-size: .85rem; }
.cart-footer { padding: var(--space-lg); border-top: 1px solid var(--color-border); display: flex; flex-direction: column; gap: 12px; }
.cart-subtotal { display: flex; justify-content: space-between; font-size: 1.05rem; color: var(--color-text-primary); font-weight: 600; }
.cart-subtotal strong { font-family: var(--font-mono); color: var(--color-accent); }
.cart-tax-note { font-size: .78rem; color: var(--color-text-muted); text-align: center; }
.cart-empty { text-align: center; padding: var(--space-2xl) var(--space-md); color: var(--color-text-muted); }

/* Toast */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 30px); z-index: 300;
  background: var(--color-surface-hi); color: var(--color-text-primary); padding: 13px 22px; border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg); font-size: .9rem; opacity: 0; transition: all var(--transition-base); border: 1px solid var(--color-border-hi); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast-success { border-color: var(--color-success); }
.toast-error { border-color: var(--color-error); }

/* Forms */
.form-grid { display: grid; gap: var(--space-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .82rem; font-weight: 600; color: var(--color-text-primary); }
.field input, .field select, .field textarea { background: var(--color-bg); border: 1px solid var(--color-border);
  color: var(--color-text-primary); padding: 12px 14px; border-radius: var(--radius-md); width: 100%; transition: border-color var(--transition-fast); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--color-accent); }
.field .hint { font-size: .74rem; color: var(--color-text-muted); }
.field.invalid input, .field.invalid select { border-color: var(--color-error); }
.field .error-msg { font-size: .74rem; color: var(--color-error); display: none; }
.field.invalid .error-msg { display: block; }

/* Checkout layout */
.checkout-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--space-2xl); align-items: start; padding: var(--space-xl) 0 var(--space-3xl); }
.checkout-section { margin-bottom: var(--space-xl); }
.checkout-section h2 { font-size: 1.15rem; margin-bottom: var(--space-md); display: flex; align-items: center; gap: 10px; }
.checkout-section h2 .step-num { width: 26px; height: 26px; background: var(--color-accent); color: var(--color-accent-fg);
  border-radius: 50%; display: grid; place-items: center; font-size: .82rem; font-family: var(--font-mono); font-weight: 700; }
.order-summary { position: sticky; top: 88px; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-lg); }
.order-summary h2 { font-size: 1.1rem; margin-bottom: var(--space-md); }
.summary-line { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--color-border); align-items: center; }
.summary-line img { width: 56px; height: 56px; object-fit: cover; border-radius: var(--radius-sm); }
.summary-line .sl-title { font-size: .85rem; color: var(--color-text-primary); }
.summary-line .sl-meta { font-size: .74rem; color: var(--color-text-muted); }
.summary-line .sl-price { margin-left: auto; font-family: var(--font-mono); color: var(--color-accent); font-size: .88rem; }
.summary-totals { padding-top: var(--space-md); display: flex; flex-direction: column; gap: 8px; }
.summary-totals .row { display: flex; justify-content: space-between; font-size: .9rem; color: var(--color-text-secondary); }
.summary-totals .row.grand { font-size: 1.2rem; color: var(--color-text-primary); font-weight: 700; padding-top: 10px; border-top: 1px solid var(--color-border); }
.summary-totals .row.grand strong { font-family: var(--font-mono); color: var(--color-accent); }
.card-input-wrap { position: relative; }
.card-brands { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); display: flex; gap: 4px; font-size: .7rem; color: var(--color-text-muted); font-family: var(--font-mono); }
.secure-note { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--color-text-muted); margin-top: var(--space-md); }
.secure-note svg { width: 16px; height: 16px; color: var(--color-success); }

/* Thank you */
.thankyou { text-align: center; padding: var(--space-3xl) 0; max-width: 640px; margin: 0 auto; }
.thankyou .check-circle { width: 84px; height: 84px; margin: 0 auto var(--space-lg); background: rgba(55,214,122,.14);
  border-radius: 50%; display: grid; place-items: center; }
.thankyou .check-circle svg { width: 42px; height: 42px; color: var(--color-success); }
.thankyou h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); margin-bottom: var(--space-sm); }
.order-detail-box { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-lg); text-align: left; margin: var(--space-xl) 0; }
.order-detail-box .odr { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--color-border); font-size: .9rem; }
.order-detail-box .odr:last-child { border: none; }

/* Article / page content */
.prose { max-width: 760px; margin: 0 auto; }
.prose h1 { font-size: clamp(1.8rem,4vw,2.6rem); margin-bottom: var(--space-md); }
.prose h2 { font-size: 1.5rem; margin: var(--space-xl) 0 var(--space-sm); color: var(--color-text-primary); }
.prose h3 { font-size: 1.2rem; margin: var(--space-lg) 0 var(--space-sm); }
.prose p { margin-bottom: var(--space-md); color: var(--color-text-secondary); }
.prose ul, .prose ol { margin: 0 0 var(--space-md) 22px; color: var(--color-text-secondary); }
.prose ul { list-style: disc; } .prose ol { list-style: decimal; }
.prose li { margin-bottom: 6px; }
.prose a { color: var(--color-accent); text-decoration: underline; }
.prose img { border-radius: var(--radius-md); margin: var(--space-md) 0; }
.prose strong { color: var(--color-text-primary); }
.article-hero { position: relative; min-height: 46vh; display: flex; align-items: flex-end; overflow: hidden; border-radius: var(--radius-lg); margin-bottom: var(--space-xl); }
.article-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.article-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,17,20,.95), transparent); }
.article-hero-body { position: relative; z-index: 1; padding: var(--space-xl); }
.article-meta { display: flex; gap: 14px; font-size: .82rem; color: var(--color-text-muted); font-family: var(--font-mono); margin: var(--space-sm) 0 var(--space-lg); flex-wrap: wrap; }
.share-row { display: flex; gap: 10px; margin: var(--space-xl) 0; }
.share-row button { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--color-border); display: grid; place-items: center; color: var(--color-text-secondary); }
.share-row button:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--color-border); }

/* Footer */
.footer { background: var(--color-surface-alt); border-top: 1px solid var(--color-border); padding: var(--space-2xl) 0 var(--space-lg); margin-top: var(--space-3xl); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-xl); }
.footer-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 800; color: var(--color-text-primary); font-size: 1.15rem; margin-bottom: var(--space-md); }
.footer-col h4 { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--color-text-muted); margin-bottom: var(--space-md); font-family: var(--font-mono); }
.footer-col a { display: block; padding: 6px 0; font-size: .9rem; color: var(--color-text-secondary); transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--color-accent); }
.footer-about { color: var(--color-text-muted); font-size: .9rem; max-width: 320px; }
.social-links { display: flex; gap: 10px; margin-top: var(--space-md); }
.social-links a { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--color-border); display: grid; place-items: center; color: var(--color-text-secondary); }
.social-links a:hover { border-color: var(--color-accent); color: var(--color-accent); }
.footer-contact { font-size: .88rem; color: var(--color-text-secondary); margin-top: var(--space-md); }
.footer-contact a:hover { color: var(--color-accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: var(--space-2xl); padding-top: var(--space-lg); border-top: 1px solid var(--color-border); font-size: .82rem; color: var(--color-text-muted); flex-wrap: wrap; gap: 10px; }
.payment-icons { display: flex; gap: 8px; font-family: var(--font-mono); font-size: .72rem; }

/* Skeleton */
.skeleton { background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-hi) 50%, var(--color-surface) 75%);
  background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--radius-md); }
@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 .5s ease; }
.slide-up { animation: slideUp .6s ease backwards; }

/* Accessibility */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; } }

.cta-band { background: linear-gradient(120deg, var(--color-surface-hi), var(--color-surface)); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-2xl); text-align: center; }
.cta-band h2 { font-size: clamp(1.5rem,4vw,2.2rem); margin-bottom: var(--space-sm); }

.brand-story { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2xl); align-items: center; }
.brand-story img { border-radius: var(--radius-lg); }
.feature-list { display: flex; flex-direction: column; gap: var(--space-md); margin-top: var(--space-lg); }
.feature-list li { display: flex; gap: 12px; }
.feature-list .fi-icon { color: var(--color-accent); flex-shrink: 0; }

.related-strip { margin-top: var(--space-3xl); }

/* ============================================================
   RESPONSIVE — mobile-first hardening
   ============================================================ */
@media (max-width: 1024px) {
  .product-layout { grid-template-columns: 1fr; gap: var(--space-xl); }
  .product-gallery { position: static; top: auto; }
  .checkout-layout { grid-template-columns: 1fr; }
  .order-summary { position: static; }
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .brand-story { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: grid; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .trust-badges { grid-template-columns: repeat(2, 1fr); }
  .reviews-summary { grid-template-columns: 1fr; gap: var(--space-lg); text-align: center; }
  .hero { min-height: 68vh; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  /* IMPORTANT: keep product & gallery images static and stable on mobile.
     No sticky, no transforms, no float — images stay in normal flow. */
  .product-gallery { position: static !important; top: auto !important; }
  .gallery-main-wrap { position: relative; aspect-ratio: 1/1; }
  .gallery-main-wrap img,
  .product-card-media img,
  .collection-card img { position: relative; transform: none !important; }
  .product-card:hover .product-card-media img,
  .collection-card:hover img { transform: none !important; }
  .gallery-thumbs { grid-template-columns: repeat(4, 1fr); }

  /* Logo sizing for small screens — single clean line */
  .nav-inner { height: 60px; gap: 10px; }
  .nav-logo { font-size: 1rem; gap: 7px; }
  .nav-logo .logo-mark { width: 24px; height: 24px; }
  .nav-logo .logo-text { font-size: .98rem; }

  .container { padding: 0 16px; }
  .section { padding: var(--space-xl) 0; }
  .grid-3, .grid-4, .grid-auto { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .product-card-body { padding: 12px; }
  .product-card-title { font-size: .88rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: var(--space-lg); }
  .reviews-summary { padding: var(--space-lg); }
  .sticky-atc-product .st-title { max-width: 140px; }
}
@media (max-width: 400px) {
  .grid-3, .grid-4, .grid-auto { grid-template-columns: 1fr 1fr; gap: 10px; }
  .nav-logo .logo-text { font-size: .9rem; }
  .btn { padding: 11px 16px; font-size: .9rem; }
}