/* ==========================================================================
   AIR FLOW - Storefront design system
   Industrial + modern premium. Loaded after site.css on public pages only;
   the admin area keeps site.css alone and is unaffected by this file.

   Direction: product-first, photography-led. Charcoal is punctuation, not the
   ground. Safety orange is the single accent. Squared geometry, tight
   uppercase type, generous but purposeful rhythm.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS
   -------------------------------------------------------------------------- */
:root{
  /* Ink & ground */
  --sf-ink:#121517;          /* near-black, headings and dark sections */
  --sf-ink-soft:#1d2226;     /* raised surface inside dark sections */
  --sf-ink-line:#2e353b;     /* hairline on dark */
  --sf-body:#41484f;         /* body copy on light */
  --sf-muted:#79828b;        /* meta, captions */
  --sf-muted-dark:#98a1aa;   /* meta on dark */

  --sf-ground:#ffffff;       /* cards, primary surface */
  --sf-shell:#f2f2ef;        /* page shell - warm off-white, not grey */
  --sf-shell-2:#e9e9e4;      /* alternating band */
  --sf-line:#dcdcd6;         /* hairline on light */
  --sf-line-soft:#ebebe6;

  /* Accent */
  --sf-accent:#e8500f;
  --sf-accent-dark:#c04008;
  --sf-accent-tint:#fdf0e9;

  /* Signal */
  --sf-ok:#0f7b42;
  --sf-warn:#b45309;
  --sf-err:#c02626;

  /* Geometry - squared, industrial */
  --sf-r:2px;
  --sf-r-lg:3px;

  /* Type */
  --sf-font:"Helvetica Neue",Helvetica,"Segoe UI",Arial,system-ui,sans-serif;
  --sf-track-wide:.16em;   /* eyebrows, small caps */
  --sf-track-nav:.08em;

  /* Rhythm */
  --sf-gutter:24px;
  --sf-max:1280px;
  --sf-section:clamp(56px,7vw,96px);

  /* Depth - used sparingly; industrial, not floaty */
  --sf-lift:0 1px 2px rgba(18,21,23,.05), 0 8px 24px rgba(18,21,23,.06);
  --sf-lift-hi:0 2px 4px rgba(18,21,23,.06), 0 18px 44px rgba(18,21,23,.12);
}

/* --------------------------------------------------------------------------
   2. BASE
   -------------------------------------------------------------------------- */
body{
  background:var(--sf-shell);
  color:var(--sf-body);
  font-family:var(--sf-font);
  font-size:16px;
  line-height:1.6;
}
main{display:block}

h1,h2,h3,h4,h5{color:var(--sf-ink);font-weight:800;letter-spacing:-.02em;line-height:1.08}
h1{font-size:clamp(2rem,4.4vw,3.4rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.15rem)}
h3{font-size:1.1rem;letter-spacing:-.01em}
h4{font-size:.95rem;letter-spacing:-.01em}

::selection{background:var(--sf-accent);color:#fff}

.sf-wrap{max-width:var(--sf-max);margin:0 auto;padding:0 var(--sf-gutter);width:100%}
.sf-wrap-narrow{max-width:840px;margin:0 auto;padding:0 var(--sf-gutter)}

/* Skip link - keyboard accessibility */
.sf-skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--sf-ink);
  color:#fff;padding:12px 20px;font-weight:700;font-size:.85rem}
.sf-skip:focus{left:0}

:focus-visible{outline:2px solid var(--sf-accent);outline-offset:2px}

/* --------------------------------------------------------------------------
   3. TYPOGRAPHIC UTILITIES
   -------------------------------------------------------------------------- */
.sf-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.7rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-wide);color:var(--sf-accent);
  margin:0 0 14px;
}
.sf-eyebrow::before{content:"";width:22px;height:2px;background:var(--sf-accent);flex:none}
.sf-eyebrow-plain::before{display:none}
.on-dark .sf-eyebrow{color:var(--sf-accent)}

.sf-lede{font-size:1.05rem;line-height:1.65;color:var(--sf-body);max-width:62ch}
.on-dark .sf-lede{color:var(--sf-muted-dark)}
.sf-meta{font-size:.8rem;color:var(--sf-muted);letter-spacing:.02em}
.sf-kicker{font-size:.72rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-wide);color:var(--sf-muted)}

/* --------------------------------------------------------------------------
   4. SECTIONS
   -------------------------------------------------------------------------- */
.sf-section{padding:var(--sf-section) 0}
.sf-section-tight{padding:calc(var(--sf-section) * .62) 0}
.sf-section--shell{background:var(--sf-shell)}
.sf-section--alt{background:var(--sf-shell-2)}
.sf-section--white{background:var(--sf-ground)}
.sf-section--dark{background:var(--sf-ink);color:var(--sf-muted-dark)}
.sf-section--dark h1,.sf-section--dark h2,
.sf-section--dark h3,.sf-section--dark h4{color:#fff}
.on-dark{color:var(--sf-muted-dark)}
.on-dark h1,.on-dark h2,.on-dark h3,.on-dark h4{color:#fff}

/* Section header: title left, action right, hairline underneath */
.sf-shead{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:16px;margin-bottom:32px;
  border-bottom:1px solid var(--sf-line);
}
.sf-section--dark .sf-shead{border-color:var(--sf-ink-line)}
.sf-shead h2{margin:0}
.sf-shead-sub{margin:8px 0 0;color:var(--sf-muted);font-size:.92rem;max-width:60ch}
.sf-shead-link{
  flex:none;font-size:.78rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-nav);color:var(--sf-ink);
  border-bottom:2px solid var(--sf-accent);padding-bottom:3px;white-space:nowrap;
}
.sf-shead-link:hover{color:var(--sf-accent)}
.sf-section--dark .sf-shead-link{color:#fff}

/* --------------------------------------------------------------------------
   5. BUTTONS
   -------------------------------------------------------------------------- */
.sf-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--sf-r);border:2px solid transparent;
  font-family:inherit;font-size:.8rem;font-weight:800;line-height:1;
  text-transform:uppercase;letter-spacing:var(--sf-track-nav);
  cursor:pointer;text-align:center;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease;
}
.sf-btn:active{transform:translateY(1px)}

.sf-btn-primary{background:var(--sf-accent);border-color:var(--sf-accent);color:#fff}
.sf-btn-primary:hover{background:var(--sf-accent-dark);border-color:var(--sf-accent-dark);color:#fff}

.sf-btn-dark{background:var(--sf-ink);border-color:var(--sf-ink);color:#fff}
.sf-btn-dark:hover{background:#000;border-color:#000;color:#fff}

.sf-btn-outline{background:transparent;border-color:var(--sf-ink);color:var(--sf-ink)}
.sf-btn-outline:hover{background:var(--sf-ink);color:#fff}

.sf-btn-ghost{background:transparent;border-color:var(--sf-line);color:var(--sf-ink)}
.sf-btn-ghost:hover{border-color:var(--sf-ink)}

/* On dark grounds */
.on-dark .sf-btn-outline,.sf-section--dark .sf-btn-outline{border-color:#4a545c;color:#fff}
.on-dark .sf-btn-outline:hover,.sf-section--dark .sf-btn-outline:hover{background:#fff;color:var(--sf-ink);border-color:#fff}

.sf-btn-lg{padding:17px 34px;font-size:.85rem}
.sf-btn-sm{padding:9px 16px;font-size:.72rem}
.sf-btn-block{display:flex;width:100%}
.sf-btn[disabled],.sf-btn.is-disabled{opacity:.45;pointer-events:none}

.sf-btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* Text link with industrial arrow */
.sf-link{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.85rem;
  color:var(--sf-ink);border-bottom:1px solid var(--sf-line);padding-bottom:2px;
}
.sf-link:hover{color:var(--sf-accent);border-color:var(--sf-accent)}
.on-dark .sf-link{color:#fff;border-color:var(--sf-ink-line)}

/* --------------------------------------------------------------------------
   6. BADGES / PILLS
   -------------------------------------------------------------------------- */
.sf-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--sf-r);
  font-size:.66rem;font-weight:800;text-transform:uppercase;
  letter-spacing:.09em;line-height:1;white-space:nowrap;
}
.sf-badge-accent{background:var(--sf-accent);color:#fff}
.sf-badge-dark{background:var(--sf-ink);color:#fff}
.sf-badge-quiet{background:var(--sf-shell-2);color:var(--sf-body)}
.sf-badge-ok{background:#e6f6ec;color:var(--sf-ok)}
.sf-badge-low{background:#fff4e5;color:var(--sf-warn)}
.sf-badge-out{background:#f3f3f0;color:var(--sf-muted)}
.sf-badge-outline{background:transparent;border:1px solid var(--sf-line);color:var(--sf-body)}

/* Stock dot */
.sf-stock{display:inline-flex;align-items:center;gap:7px;font-size:.78rem;font-weight:700}
.sf-stock::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.sf-stock-in{color:var(--sf-ok)}
.sf-stock-low{color:var(--sf-warn)}
.sf-stock-out{color:var(--sf-muted)}

/* --------------------------------------------------------------------------
   7. MEDIA SLOTS
   Every image position on the site is a .sf-media slot with a fixed ratio, so
   real photography can drop in later without any layout change. When no image
   is present it renders as an intentional labelled placeholder, never as a
   broken or fake image.
   -------------------------------------------------------------------------- */
.sf-media{
  position:relative;display:block;overflow:hidden;
  background:var(--sf-shell-2);
  aspect-ratio:1 / 1;
}
.sf-media img{width:100%;height:100%;object-fit:cover;display:block}
.sf-media-contain img{object-fit:contain;padding:8%}
.sf-media-4x3{aspect-ratio:4 / 3}
.sf-media-3x2{aspect-ratio:3 / 2}
.sf-media-16x9{aspect-ratio:16 / 9}
.sf-media-4x5{aspect-ratio:4 / 5}
.sf-media-tall{aspect-ratio:3 / 4}
.sf-media-free{aspect-ratio:auto;height:100%}

/* Placeholder: diagonal machined hatch + a label naming the shot required */
.sf-slot{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:8px;text-align:center;padding:18px;
  background:
    repeating-linear-gradient(135deg,
      rgba(18,21,23,.045) 0 1px,
      transparent 1px 9px),
    var(--sf-shell-2);
  border:1px solid var(--sf-line-soft);
  color:var(--sf-muted);
}
.sf-slot-mark{
  width:34px;height:34px;border:2px solid var(--sf-line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:1rem;
  color:var(--sf-muted);background:var(--sf-ground);
}
.sf-slot-label{
  font-size:.66rem;font-weight:800;text-transform:uppercase;
  letter-spacing:.12em;line-height:1.45;max-width:22ch;
}
.sf-slot-dark{
  background:
    repeating-linear-gradient(135deg,
      rgba(255,255,255,.05) 0 1px,
      transparent 1px 9px),
    var(--sf-ink-soft);
  border-color:var(--sf-ink-line);color:var(--sf-muted-dark);
}
.sf-slot-dark .sf-slot-mark{background:transparent;border-color:var(--sf-ink-line);color:var(--sf-muted-dark)}

/* Overlay caption used on editorial imagery */
.sf-media-caption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;color:#fff;
  background:linear-gradient(to top,rgba(0,0,0,.72),rgba(0,0,0,0));
  font-size:.8rem;font-weight:700;letter-spacing:.03em;
}

/* --------------------------------------------------------------------------
   8. GRIDS
   -------------------------------------------------------------------------- */
.sf-grid{display:grid;gap:20px}
.sf-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.sf-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.sf-grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.sf-grid-gap-lg{gap:28px}

/* Product grid: auto-fills, so it holds up from 3 products to hundreds */
.sf-product-grid{
  display:grid;gap:1px;background:var(--sf-line);
  border:1px solid var(--sf-line);
  grid-template-columns:repeat(auto-fill,minmax(248px,1fr));
}

/* --------------------------------------------------------------------------
   9. HEADER
   -------------------------------------------------------------------------- */
.sf-header{position:sticky;top:0;z-index:60;background:var(--sf-ground);
  border-bottom:1px solid var(--sf-line)}

/* Utility strip - thin dark bar carrying the trade facts */
.sf-utility{background:var(--sf-ink);color:var(--sf-muted-dark);font-size:.73rem}
.sf-utility .sf-wrap{display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:34px;flex-wrap:wrap}
.sf-utility-list{display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  letter-spacing:.04em}
.sf-utility-list span{display:inline-flex;align-items:center;gap:7px}
.sf-utility-list b{color:#fff;font-weight:700}
.sf-utility a{color:var(--sf-muted-dark)}
.sf-utility a:hover{color:#fff}
.sf-utility-dot{width:4px;height:4px;background:var(--sf-accent);border-radius:50%;flex:none}

/* Main bar */
.sf-bar{display:flex;align-items:center;gap:32px;min-height:76px}

.sf-brand{display:flex;align-items:center;gap:12px;flex:none}
.sf-brand-block{
  display:flex;align-items:center;justify-content:center;
  width:38px;height:38px;background:var(--sf-accent);color:#fff;
  font-weight:900;font-size:1rem;letter-spacing:-.04em;border-radius:var(--sf-r);flex:none;
}
.sf-brand-name{font-size:1.16rem;font-weight:900;letter-spacing:.13em;
  color:var(--sf-ink);line-height:1.05}
.sf-brand-sub{display:block;font-size:.57rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--sf-muted);margin-top:3px}

.sf-nav{display:flex;align-items:center;gap:4px;margin-right:auto}
.sf-nav > a,.sf-nav-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;font-size:.79rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-nav);color:var(--sf-ink);
  background:none;border:0;font-family:inherit;cursor:pointer;position:relative;
}
.sf-nav > a::after,.sf-nav-trigger::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--sf-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.sf-nav > a:hover::after,.sf-nav-trigger:hover::after,
.sf-nav > a.is-active::after{transform:scaleX(1)}

.sf-actions{display:flex;align-items:center;gap:6px;flex:none}
.sf-action{
  display:inline-flex;align-items:center;gap:8px;padding:10px 12px;
  font-size:.79rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-nav);color:var(--sf-ink);border-radius:var(--sf-r);
}
.sf-action:hover{background:var(--sf-shell)}
.sf-action-cart{background:var(--sf-ink);color:#fff}
.sf-action-cart:hover{background:#000;color:#fff}
.sf-cart-count{
  display:inline-flex;align-items:center;justify-content:center;min-width:19px;height:19px;
  padding:0 5px;background:var(--sf-accent);color:#fff;border-radius:10px;
  font-size:.68rem;font-weight:800;
}
.sf-icon{width:17px;height:17px;flex:none;stroke:currentColor;fill:none;stroke-width:1.9;
  stroke-linecap:round;stroke-linejoin:round}

/* Products mega-panel (CSS-only, opens on hover and keyboard focus) */
.sf-nav-item{position:relative;display:flex}
.sf-panel{
  position:absolute;top:100%;left:0;min-width:520px;
  background:var(--sf-ground);border:1px solid var(--sf-line);
  box-shadow:var(--sf-lift-hi);padding:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.sf-nav-item:hover .sf-panel,
.sf-nav-item:focus-within .sf-panel{opacity:1;visibility:visible;transform:translateY(0)}
.sf-panel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 24px}
.sf-panel-grid a{display:block;padding:9px 10px;font-size:.88rem;font-weight:600;
  color:var(--sf-body);border-left:2px solid transparent}
.sf-panel-grid a:hover{color:var(--sf-ink);background:var(--sf-shell);border-color:var(--sf-accent)}
.sf-panel-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--sf-line)}

/* Mobile */
.sf-burger{display:none;align-items:center;justify-content:center;width:44px;height:44px;
  background:var(--sf-ink);color:#fff;border:0;border-radius:var(--sf-r);cursor:pointer}
.sf-mobile{display:none;border-top:1px solid var(--sf-line);background:var(--sf-ground)}
.sf-mobile.is-open{display:block}
.sf-mobile a{display:block;padding:14px 0;font-size:.9rem;font-weight:800;
  text-transform:uppercase;letter-spacing:var(--sf-track-nav);color:var(--sf-ink);
  border-bottom:1px solid var(--sf-line-soft)}
.sf-mobile a.sf-mobile-sub{padding-left:16px;font-size:.82rem;font-weight:600;
  text-transform:none;letter-spacing:0;color:var(--sf-body)}
.sf-mobile-foot{padding:18px 0 24px;display:grid;gap:10px}

/* --------------------------------------------------------------------------
   10. FLASHES
   -------------------------------------------------------------------------- */
.sf-flashes{padding-top:18px}
.sf-flash{display:flex;gap:12px;align-items:flex-start;padding:13px 16px;
  margin-bottom:10px;font-size:.9rem;background:var(--sf-ground);
  border:1px solid var(--sf-line);border-left:3px solid var(--sf-muted)}
.sf-flash-success{border-left-color:var(--sf-ok)}
.sf-flash-error{border-left-color:var(--sf-err)}
.sf-flash-info,.sf-flash-message{border-left-color:var(--sf-accent)}

/* --------------------------------------------------------------------------
   11. HERO
   Product-first: the photography is a full column of the layout, not a
   decorative background behind text.
   -------------------------------------------------------------------------- */
.sf-hero{background:var(--sf-ink);color:var(--sf-muted-dark);overflow:hidden}
.sf-hero-inner{
  display:grid;grid-template-columns:minmax(0,0.86fr) minmax(0,1.14fr);
  align-items:stretch;gap:0;
}
.sf-hero-copy{padding:clamp(44px,5.5vw,80px) clamp(24px,4vw,64px) clamp(44px,5.5vw,80px) 0;
  display:flex;flex-direction:column;justify-content:center}
.sf-hero h1{color:#fff;margin:0 0 20px;max-width:15ch}
.sf-hero h1 em{font-style:normal;color:var(--sf-accent)}
.sf-hero p{color:var(--sf-muted-dark);max-width:46ch;font-size:1.02rem;margin:0 0 30px}

/* Hero credential strip */
.sf-hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:38px;
  border-top:1px solid var(--sf-ink-line)}
.sf-hero-fact{padding:18px 26px 0 0;margin-right:26px;border-right:1px solid var(--sf-ink-line)}
.sf-hero-fact:last-child{border-right:0;margin-right:0;padding-right:0}
.sf-hero-fact b{display:block;color:#fff;font-size:1.5rem;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.sf-hero-fact span{display:block;font-size:.7rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.11em;color:var(--sf-muted-dark);margin-top:5px}

/* Hero media: one lead shot plus two supporting shots */
.sf-hero-media{display:grid;grid-template-columns:1.55fr 1fr;grid-template-rows:1fr 1fr;
  gap:2px;background:var(--sf-ink-line);min-height:520px}
.sf-hero-media > *:first-child{grid-row:span 2}
.sf-hero-media .sf-media{aspect-ratio:auto;height:100%}

/* Orange rule that ties the hero to the section below */
.sf-hero-rule{height:4px;background:var(--sf-accent)}

/* --------------------------------------------------------------------------
   12. CATEGORY TILES
   -------------------------------------------------------------------------- */
.sf-cat-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.sf-cat{
  position:relative;display:block;background:var(--sf-ground);
  border:1px solid var(--sf-line);overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.sf-cat:hover{border-color:var(--sf-ink);box-shadow:var(--sf-lift);transform:translateY(-2px)}
.sf-cat .sf-media{aspect-ratio:5 / 4}
.sf-cat-body{padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.sf-cat-name{font-size:.95rem;font-weight:800;color:var(--sf-ink);letter-spacing:-.01em}
.sf-cat-count{font-size:.72rem;font-weight:700;color:var(--sf-muted);text-transform:uppercase;letter-spacing:.08em}
.sf-cat-arrow{width:26px;height:26px;flex:none;display:flex;align-items:center;justify-content:center;
  background:var(--sf-shell);color:var(--sf-ink);font-weight:800;font-size:.85rem;
  transition:background .18s ease,color .18s ease}
.sf-cat:hover .sf-cat-arrow{background:var(--sf-accent);color:#fff}

/* --------------------------------------------------------------------------
   13. PRODUCT CARD
   -------------------------------------------------------------------------- */
.sf-card{
  position:relative;display:flex;flex-direction:column;background:var(--sf-ground);
  transition:box-shadow .18s ease,transform .18s ease;
}
.sf-card:hover{box-shadow:var(--sf-lift-hi);transform:translateY(-3px);z-index:2}
.sf-card-media{position:relative;background:var(--sf-ground)}
.sf-card-media .sf-media{background:var(--sf-ground)}
.sf-card-media .sf-media img{object-fit:contain;padding:12%}
.sf-card-media .sf-slot{background:
    repeating-linear-gradient(135deg,rgba(18,21,23,.04) 0 1px,transparent 1px 9px),
    var(--sf-shell);border:0}

.sf-card-flags{position:absolute;top:12px;left:12px;display:flex;flex-direction:column;
  align-items:flex-start;gap:6px;z-index:2}
.sf-card-amazon{position:absolute;top:12px;right:12px;z-index:2}

.sf-card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:7px;flex:1;
  border-top:1px solid var(--sf-line-soft)}
.sf-card-sku{font-size:.67rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--sf-muted)}
.sf-card-name{font-size:.95rem;font-weight:700;color:var(--sf-ink);line-height:1.35;
  letter-spacing:-.005em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sf-card:hover .sf-card-name{color:var(--sf-accent)}
.sf-card-spec{font-size:.78rem;color:var(--sf-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sf-card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:flex-end;
  justify-content:space-between;gap:12px}

.sf-price{font-size:1.08rem;font-weight:800;color:var(--sf-ink);letter-spacing:-.02em;
  display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.sf-price-mrp{font-size:.82rem;font-weight:500;color:var(--sf-muted);text-decoration:line-through}
.sf-price-off{font-size:.7rem;font-weight:800;color:var(--sf-accent);letter-spacing:.05em}
.sf-price-note{font-size:.7rem;color:var(--sf-muted);font-weight:600;letter-spacing:.03em}
.sf-price-lg{font-size:2rem}

/* Whole card is a link; the CTA sits above it */
.sf-card-hit{position:absolute;inset:0;z-index:1}
.sf-card-cta{position:relative;z-index:2}

/* --------------------------------------------------------------------------
   14. FEATURE / VALUE ROWS
   -------------------------------------------------------------------------- */
.sf-vgrid{display:grid;gap:1px;background:var(--sf-line);border:1px solid var(--sf-line);
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.sf-v{background:var(--sf-ground);padding:26px 24px}
.sf-section--dark .sf-vgrid{background:var(--sf-ink-line);border-color:var(--sf-ink-line)}
.sf-section--dark .sf-v{background:var(--sf-ink)}
.sf-v-num{font-size:.7rem;font-weight:800;letter-spacing:.14em;color:var(--sf-accent);margin-bottom:14px}
.sf-v h3{margin:0 0 8px;font-size:1rem}
.sf-v p{margin:0;font-size:.88rem;color:var(--sf-muted)}

/* Split editorial block: media one side, copy the other */
.sf-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(28px,5vw,64px);align-items:center}
.sf-split-media{display:grid;gap:12px}
.sf-split-media-stack{grid-template-columns:repeat(2,1fr)}
.sf-split-media-stack > :first-child{grid-column:span 2}
.sf-split-copy h2{margin:0 0 16px}

/* Numbered spec list used for quality/process copy */
.sf-checklist{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:14px}
.sf-checklist li{display:flex;gap:12px;align-items:flex-start;font-size:.92rem}
.sf-checklist li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:7px;background:var(--sf-accent);
}

/* Stat band */
.sf-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:1px;background:var(--sf-ink-line);border:1px solid var(--sf-ink-line)}
.sf-stat{background:var(--sf-ink);padding:28px 24px}
.sf-stat b{display:block;color:#fff;font-size:2.1rem;font-weight:800;letter-spacing:-.03em;line-height:1}
.sf-stat span{display:block;margin-top:9px;font-size:.72rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.11em;color:var(--sf-muted-dark)}

/* --------------------------------------------------------------------------
   15. CTA BANDS
   -------------------------------------------------------------------------- */
.sf-cta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  background:var(--sf-line);border:1px solid var(--sf-line)}
.sf-cta-panel{background:var(--sf-ground);padding:clamp(28px,3.4vw,44px)}
.sf-cta-panel h3{font-size:1.35rem;margin:0 0 12px}
.sf-cta-panel p{color:var(--sf-muted);font-size:.92rem;margin:0 0 22px;max-width:44ch}
.sf-cta-panel--dark{background:var(--sf-ink)}
.sf-cta-panel--dark h3{color:#fff}
.sf-cta-panel--dark p{color:var(--sf-muted-dark)}

.sf-closer{background:var(--sf-ink);color:var(--sf-muted-dark);position:relative}
.sf-closer-inner{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:clamp(28px,5vw,72px);align-items:center;padding:clamp(48px,6vw,80px) 0}
.sf-closer h2{color:#fff;margin:0 0 16px;max-width:18ch}

/* --------------------------------------------------------------------------
   16. FOOTER
   -------------------------------------------------------------------------- */
.sf-footer{background:var(--sf-ink);color:var(--sf-muted-dark);margin-top:0}
.sf-footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:clamp(44px,5vw,68px) 0 44px}
.sf-footer h4{font-size:.7rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-wide);color:#fff;margin:0 0 18px}
.sf-footer a{display:block;padding:6px 0;font-size:.88rem;color:var(--sf-muted-dark)}
.sf-footer a:hover{color:var(--sf-accent)}
.sf-footer-brand .sf-brand-name{color:#fff}
.sf-footer-brand p{font-size:.88rem;color:var(--sf-muted-dark);margin:18px 0 0;max-width:38ch}
.sf-footer-note{font-size:.78rem;color:var(--sf-muted);margin-top:14px}
.sf-footer-bar{border-top:1px solid var(--sf-ink-line);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.78rem;color:var(--sf-muted)}
.sf-footer-terms{display:flex;gap:20px;flex-wrap:wrap}
.sf-footer-terms a{padding:0;font-size:.78rem}

/* --------------------------------------------------------------------------
   17. CATALOGUE PAGE
   -------------------------------------------------------------------------- */
.sf-pagehead{background:var(--sf-ground);border-bottom:1px solid var(--sf-line);
  padding:34px 0 30px}
.sf-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.76rem;
  font-weight:600;color:var(--sf-muted);margin-bottom:16px;letter-spacing:.03em}
.sf-crumbs a:hover{color:var(--sf-accent)}
.sf-crumbs-sep{color:var(--sf-line)}
.sf-pagehead h1{margin:0;font-size:clamp(1.7rem,3.2vw,2.5rem)}
.sf-pagehead p{margin:12px 0 0;max-width:64ch;color:var(--sf-muted);font-size:.95rem}

.sf-catalogue{display:grid;grid-template-columns:246px minmax(0,1fr);
  gap:40px;align-items:start;padding:36px 0 var(--sf-section)}

.sf-facet{background:var(--sf-ground);border:1px solid var(--sf-line);position:sticky;top:96px}
.sf-facet-head{padding:15px 18px;border-bottom:1px solid var(--sf-line);
  font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:var(--sf-track-wide);
  color:var(--sf-ink)}
.sf-facet-list{padding:10px 0}
.sf-facet-list a{display:block;padding:8px 18px;font-size:.88rem;color:var(--sf-body);
  border-left:2px solid transparent}
.sf-facet-list a:hover{background:var(--sf-shell);color:var(--sf-ink)}
.sf-facet-list a.is-active{color:var(--sf-ink);font-weight:800;border-color:var(--sf-accent);
  background:var(--sf-accent-tint)}
.sf-facet-sub{padding-left:32px !important;font-size:.83rem !important;color:var(--sf-muted) !important}
.sf-facet-sub.is-active{color:var(--sf-ink) !important}
.sf-facet-foot{padding:16px 18px;border-top:1px solid var(--sf-line)}

.sf-toolbar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding-bottom:16px;margin-bottom:22px;border-bottom:1px solid var(--sf-line)}
.sf-toolbar-count{font-size:.8rem;font-weight:700;color:var(--sf-muted);
  text-transform:uppercase;letter-spacing:.08em;margin-right:auto}
.sf-search{display:flex;align-items:center;gap:0;border:1px solid var(--sf-line);
  background:var(--sf-ground)}
.sf-search input[type=text]{border:0;min-width:200px;padding:10px 12px;font-size:.88rem;background:transparent}
.sf-search input[type=text]:focus{outline:none}
.sf-search:focus-within{border-color:var(--sf-ink)}
.sf-search button{border:0;background:var(--sf-ink);color:#fff;padding:11px 16px;
  font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;cursor:pointer}
.sf-select{border:1px solid var(--sf-line);background:var(--sf-ground);padding:10px 12px;
  font-family:inherit;font-size:.85rem;font-weight:600;color:var(--sf-ink);width:auto;
  border-radius:0}

.sf-pager{display:flex;flex-wrap:wrap;gap:6px;margin-top:34px;align-items:center}
.sf-pager a,.sf-pager span{min-width:40px;height:40px;display:inline-flex;align-items:center;
  justify-content:center;padding:0 12px;border:1px solid var(--sf-line);background:var(--sf-ground);
  font-size:.85rem;font-weight:700;color:var(--sf-ink)}
.sf-pager a:hover{border-color:var(--sf-ink)}
.sf-pager .is-current{background:var(--sf-ink);border-color:var(--sf-ink);color:#fff}
.sf-pager .sf-pager-gap{border:0;background:transparent;color:var(--sf-muted);min-width:20px}

.sf-empty{background:var(--sf-ground);border:1px dashed var(--sf-line);
  padding:64px 28px;text-align:center}
.sf-empty h3{margin:0 0 8px}
.sf-empty p{margin:0 auto;max-width:46ch;color:var(--sf-muted);font-size:.92rem}

/* --------------------------------------------------------------------------
   18. PRODUCT DETAIL
   -------------------------------------------------------------------------- */
.sf-pdp{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(28px,4vw,56px);align-items:start;padding:32px 0 var(--sf-section)}

.sf-gallery{position:sticky;top:96px;display:grid;gap:12px}
.sf-gallery-main{background:var(--sf-ground);border:1px solid var(--sf-line)}
.sf-gallery-main .sf-media{aspect-ratio:1;background:var(--sf-ground)}
.sf-gallery-main .sf-media img{object-fit:contain;padding:7%}
.sf-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.sf-thumb{background:var(--sf-ground);border:1px solid var(--sf-line);cursor:pointer;padding:0;
  display:block;width:100%}
.sf-thumb .sf-media{aspect-ratio:1;background:var(--sf-ground)}
.sf-thumb .sf-media img{object-fit:contain;padding:10%}
.sf-thumb.is-active{border-color:var(--sf-accent);box-shadow:inset 0 0 0 1px var(--sf-accent)}

.sf-buy{background:var(--sf-ground);border:1px solid var(--sf-line);padding:24px}
.sf-pdp-title{margin:6px 0 10px;font-size:clamp(1.5rem,2.6vw,2.05rem)}
.sf-pdp-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:.78rem;color:var(--sf-muted);margin-bottom:18px}
.sf-pdp-short{font-size:.95rem;color:var(--sf-body);margin:0 0 20px}
.sf-price-block{padding:18px 0;border-top:1px solid var(--sf-line);border-bottom:1px solid var(--sf-line);margin-bottom:20px}

.sf-variants{display:grid;gap:8px;margin-bottom:20px}
.sf-variant-label{font-size:.7rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-wide);color:var(--sf-muted)}
.sf-variant-options{display:flex;flex-wrap:wrap;gap:8px}
.sf-variant-radio{position:absolute;opacity:0;width:0;height:0}
.sf-variant-chip{
  display:inline-flex;flex-direction:column;gap:2px;padding:9px 14px;cursor:pointer;
  border:1px solid var(--sf-line);background:var(--sf-ground);
  font-size:.85rem;font-weight:700;color:var(--sf-ink);min-width:88px;
}
.sf-variant-chip small{font-weight:600;font-size:.72rem;color:var(--sf-muted)}
.sf-variant-radio:checked + .sf-variant-chip{border-color:var(--sf-accent);
  box-shadow:inset 0 0 0 1px var(--sf-accent);background:var(--sf-accent-tint)}
.sf-variant-radio:focus-visible + .sf-variant-chip{outline:2px solid var(--sf-accent);outline-offset:2px}

.sf-buyrow{display:flex;gap:10px;align-items:stretch;margin-bottom:12px}
.sf-qty{display:flex;align-items:center;border:1px solid var(--sf-line);background:var(--sf-ground);flex:none}
.sf-qty button{width:40px;border:0;background:transparent;font-size:1.1rem;font-weight:700;
  color:var(--sf-ink);cursor:pointer;font-family:inherit}
.sf-qty button:hover{color:var(--sf-accent)}
.sf-qty input{width:46px;border:0;text-align:center;font-family:inherit;font-size:.95rem;
  font-weight:700;padding:12px 0;background:transparent;-moz-appearance:textfield}
.sf-qty input::-webkit-outer-spin-button,
.sf-qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.sf-qty input:focus{outline:none}

.sf-amazon{display:flex;align-items:center;gap:14px;padding:14px 16px;margin-top:14px;
  background:var(--sf-shell);border:1px solid var(--sf-line)}
.sf-amazon-copy{flex:1;min-width:0}
.sf-amazon-copy b{display:block;font-size:.85rem;color:var(--sf-ink)}
.sf-amazon-copy span{font-size:.78rem;color:var(--sf-muted)}

.sf-assure{display:grid;gap:10px;margin-top:20px;padding-top:18px;border-top:1px solid var(--sf-line)}
.sf-assure div{display:flex;gap:10px;align-items:flex-start;font-size:.82rem;color:var(--sf-body)}
.sf-assure b{color:var(--sf-ink)}

.sf-wholesale-note{margin-top:16px;padding:18px;background:var(--sf-ink);color:var(--sf-muted-dark)}
.sf-wholesale-note b{color:#fff;display:block;margin-bottom:6px;font-size:.92rem}
.sf-wholesale-note p{margin:0 0 14px;font-size:.83rem}

/* PDP information tabs (CSS-only radio tabs) */
.sf-tabs{background:var(--sf-ground);border:1px solid var(--sf-line)}
.sf-tabs-nav{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--sf-line)}
.sf-tab-radio{position:absolute;opacity:0;width:0;height:0}
.sf-tab-label{padding:16px 22px;font-size:.78rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-nav);color:var(--sf-muted);cursor:pointer;
  border-bottom:2px solid transparent;margin-bottom:-1px}
.sf-tab-label:hover{color:var(--sf-ink)}
.sf-tab-body{display:none;padding:28px 26px}
.sf-tab-body p{max-width:76ch}
#sf-tab-1:checked ~ .sf-tabs-nav [for=sf-tab-1],
#sf-tab-2:checked ~ .sf-tabs-nav [for=sf-tab-2],
#sf-tab-3:checked ~ .sf-tabs-nav [for=sf-tab-3]{color:var(--sf-ink);border-bottom-color:var(--sf-accent)}
#sf-tab-1:checked ~ #sf-panel-1,
#sf-tab-2:checked ~ #sf-panel-2,
#sf-tab-3:checked ~ #sf-panel-3{display:block}

.sf-spec-table{width:100%;border-collapse:collapse;font-size:.9rem}
.sf-spec-table th{width:240px;text-align:left;padding:12px 16px 12px 0;color:var(--sf-muted);
  font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;
  border-bottom:1px solid var(--sf-line-soft);vertical-align:top}
.sf-spec-table td{padding:12px 0;color:var(--sf-ink);font-weight:600;
  border-bottom:1px solid var(--sf-line-soft)}
.sf-spec-group{font-size:.72rem;font-weight:800;text-transform:uppercase;
  letter-spacing:var(--sf-track-wide);color:var(--sf-accent);padding:22px 0 6px}
.sf-spec-group:first-child{padding-top:0}

.sf-features{list-style:none;margin:0;padding:0;display:grid;gap:12px;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.sf-features li{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;color:var(--sf-body)}
.sf-features li::before{content:"";flex:none;width:8px;height:8px;margin-top:7px;background:var(--sf-accent)}

/* --------------------------------------------------------------------------
   19. RESPONSIVE
   Mobile is designed, not degraded: the hero reorders so photography leads,
   the catalogue facets become a horizontal rail, and the buy box stays whole.
   -------------------------------------------------------------------------- */
@media (max-width:1100px){
  .sf-hero-inner{grid-template-columns:1fr}
  .sf-hero-copy{padding:44px 0 40px;order:2}
  .sf-hero-media{order:1;min-height:0;grid-template-rows:auto;
    grid-template-columns:repeat(3,1fr)}
  .sf-hero-media > *:first-child{grid-row:auto;grid-column:span 3}
  .sf-hero-media .sf-media{aspect-ratio:4 / 3;height:auto}
  .sf-hero-media > *:first-child .sf-media{aspect-ratio:16 / 9}
  .sf-catalogue{grid-template-columns:1fr;gap:24px}
  .sf-facet{position:static}
  .sf-facet-list{display:flex;gap:6px;overflow-x:auto;padding:12px}
  .sf-facet-list a{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;
    background:var(--sf-shell);padding:9px 14px}
  .sf-facet-list a.is-active{border-color:var(--sf-accent)}
  .sf-facet-sub{padding-left:14px !important}
  .sf-pdp{grid-template-columns:1fr}
  .sf-gallery{position:static}
}

@media (max-width:960px){
  .sf-nav,.sf-actions .sf-action-desktop{display:none}
  .sf-burger{display:inline-flex}
  .sf-bar{min-height:64px;gap:14px;justify-content:space-between}
  .sf-brand{margin-right:auto}
  .sf-split{grid-template-columns:1fr}
  .sf-closer-inner{grid-template-columns:1fr}
  .sf-cta{grid-template-columns:1fr}
  .sf-footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .sf-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sf-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:720px){
  body{font-size:15px}
  .sf-utility-list span:nth-child(n+3){display:none}
  .sf-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sf-cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sf-grid-2,.sf-grid-3,.sf-grid-4{grid-template-columns:1fr}
  .sf-shead{flex-direction:column;align-items:flex-start;gap:14px}
  .sf-hero-fact{padding-right:18px;margin-right:18px}
  .sf-hero-fact b{font-size:1.25rem}
  .sf-thumbs{grid-template-columns:repeat(4,1fr)}
  .sf-tab-label{padding:13px 15px;font-size:.72rem}
  .sf-tab-body{padding:22px 18px}
  .sf-spec-table th{width:44%;padding-right:12px}
  .sf-footer-top{grid-template-columns:1fr}
  .sf-buy{padding:20px 18px}
  .sf-card-body{padding:14px}
}

@media (max-width:420px){
  .sf-product-grid,.sf-cat-grid{grid-template-columns:1fr}
  .sf-buyrow{flex-wrap:wrap}
  .sf-buyrow .sf-btn{flex:1 1 100%}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .sf-card:hover,.sf-cat:hover{transform:none}
}

/* --------------------------------------------------------------------------
   19b. INCOMPLETE CATALOGUE DATA
   Products imported from the poster carry no price, stock or photography yet.
   These states are designed, not apologised for.
   -------------------------------------------------------------------------- */
.sf-price-tbc span{font-size:.82em;letter-spacing:.02em;color:var(--sf-ink);
  font-weight:700}
.sf-preview-note{margin:0 0 26px;padding:12px 16px;font-size:.82rem;
  background:#fff;border-left:3px solid var(--sf-accent);color:var(--sf-ink)}
.sf-preview-note b{font-weight:700}
.sf-quote{margin-top:20px;padding:22px;background:#fff;
  border:1px solid var(--sf-line)}
.sf-quote>b{display:block;font-size:1.02rem;letter-spacing:.01em;
  margin-bottom:8px}
.sf-quote p{margin:0 0 16px;font-size:.86rem;color:var(--sf-muted);
  line-height:1.6}
.sf-quote-variants{list-style:none;margin:0 0 16px;padding:0;display:flex;
  flex-wrap:wrap;gap:6px}
.sf-quote-variants li{font-size:.76rem;padding:5px 11px;background:var(--sf-shell);
  border:1px solid var(--sf-line);color:var(--sf-ink)}
.sf-quote-actions{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:420px){
  .sf-quote{padding:18px}
  .sf-quote-actions .sf-btn{flex:1 1 100%;text-align:center}
}

/* --------------------------------------------------------------------------
   20. UTILITIES
   -------------------------------------------------------------------------- */
.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}