/* ============================================================
   S&K Glazing — skglazing.uk (supply-only shop)
   Brand: graphite / teal, Space Grotesk + IBM Plex Sans
   Carried over from the skglazing.co.uk shop prototype for
   family consistency across the two-domain S&K Glazing brand.
   ============================================================ */

:root{
  --ink:#1b1e23; --graphite:#2a2f36; --glass:#f5f7f9; --paper:#ffffff;
  --line:#e2e7ec; --line-strong:#cdd4db; --steel:#5b636d; --muted:#8b939c;
  --teal:#0c6e62; --teal-dark:#0a5a50; --teal-tint:#e7f2f0;
  --amber:#a9701a; --amber-tint:#fbf1e0;
  --radius:7px; --radius-lg:14px; --maxw:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"IBM Plex Sans",system-ui,sans-serif;color:var(--ink);
  background:var(--glass);line-height:1.55;font-size:16px}
h1,h2,h3{font-family:"Space Grotesk",sans-serif;margin:0;letter-spacing:-.01em;line-height:1.15}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* top bar */
.topbar{position:sticky;top:0;z-index:40;background:var(--ink);color:#fff;border-bottom:1px solid #000}
.topbar .wrap{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;flex-direction:column;font-family:"Space Grotesk";font-weight:700;font-size:19px;letter-spacing:-.02em}
.brand small{font-family:"IBM Plex Sans";font-weight:500;font-size:11px;color:#aeb6be;letter-spacing:.02em}
nav.mainnav{display:flex;gap:22px;font-size:14px;font-weight:500}
nav.mainnav a{color:#c9cfd6;padding:4px 0;border-bottom:2px solid transparent}
nav.mainnav a:hover,nav.mainnav a.active{color:#fff;border-color:var(--teal)}
.spacer{flex:1}
.cart-link{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#fff;
  background:var(--teal);padding:8px 14px;border-radius:var(--radius)}
.cart-link:hover{background:var(--teal-dark)}
.vat-toggle{display:inline-flex;background:#0f1215;border:1px solid #333;border-radius:6px;overflow:hidden;font-size:12px}
.vat-toggle button{background:none;border:0;color:#9aa2ab;padding:6px 11px}
.vat-toggle button.active{background:var(--teal);color:#fff}
.crosslink{background:#0f1215;color:#9aa2ab;font-size:12px;text-align:center;padding:6px 0}
.crosslink a{color:#d9dde1;border-bottom:1px dotted #666}

/* hero */
.hero{background:var(--graphite);color:#fff;padding:64px 0 56px}
.hero .wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.hero .hero-img{width:100%;border-radius:var(--radius-lg);object-fit:cover;aspect-ratio:4/3}
@media(max-width:880px){.hero .wrap{grid-template-columns:1fr}.hero .hero-img{display:none}}
.hero .kicker{color:#8fd6ca;font-size:13px;font-weight:600;margin-bottom:10px}
.hero h1{font-size:clamp(30px,5vw,46px);max-width:14ch}
.hero p.lede{font-size:18px;color:#c9cfd6;max-width:52ch;margin-top:16px}
.hero-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:var(--radius);font-weight:600;font-size:15px}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark)}
.btn-ghost{background:transparent;color:#fff;border:1px solid #4c545e}
.btn-ghost:hover{border-color:#8fd6ca}

/* section */
section{padding:52px 0}
section h2{font-size:26px;margin-bottom:6px}
.section-lede{color:var(--steel);max-width:60ch;margin-bottom:28px}

/* material grid */
.material-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.material-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;display:flex;flex-direction:column;gap:10px}
.material-card h3{font-size:18px}
.material-card .lead-time{font-size:12px;color:var(--steel)}
.status{display:inline-flex;align-self:flex-start;font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px}
.status.live{background:var(--teal-tint);color:var(--teal-dark)}
.status.enquire{background:var(--amber-tint);color:var(--amber)}
.material-card .go{margin-top:auto;font-size:14px;font-weight:600;color:var(--teal)}

/* product grid */
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.product-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.product-card .thumb{aspect-ratio:4/3;background:linear-gradient(135deg,#eef1f3,#dfe4e8);display:flex;align-items:center;justify-content:center}
.product-card .thumb svg{width:60%}
.product-card .body{padding:16px 18px 18px}
.product-card h3{font-size:16px;margin-bottom:4px}
.product-card .price{font-family:"Space Grotesk";font-weight:700;font-size:19px;color:var(--ink);margin-top:8px}
.product-card .price small{font-family:"IBM Plex Sans";font-weight:500;font-size:12px;color:var(--muted)}

/* designer / configurator layout */
.designer{display:grid;grid-template-columns:1.1fr .9fr;gap:32px}
@media(max-width:880px){.designer{grid-template-columns:1fr}}
.canvas-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:420px}
.controls-panel{display:flex;flex-direction:column;gap:18px}
.control-group{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.control-group label{display:block;font-size:12px;font-weight:600;color:var(--steel);margin-bottom:8px;text-transform:none}
.control-group .row{display:flex;gap:10px}
.control-group input[type=number]{width:100%;padding:9px 10px;border:1px solid var(--line-strong);border-radius:6px;font-size:15px}
.swatches{display:flex;gap:8px;flex-wrap:wrap}
.swatch{padding:8px 12px;border:1px solid var(--line-strong);border-radius:6px;font-size:13px;background:#fff}
.swatch.active{border-color:var(--teal);background:var(--teal-tint);color:var(--teal-dark);font-weight:600}
.checkbox-row{display:flex;align-items:center;gap:8px;font-size:14px}
.price-summary{background:var(--graphite);color:#fff;border-radius:var(--radius-lg);padding:22px}
.price-summary .line{display:flex;justify-content:space-between;font-size:14px;padding:6px 0;color:#c9cfd6}
.price-summary .total{display:flex;justify-content:space-between;font-family:"Space Grotesk";font-weight:700;font-size:24px;border-top:1px solid #454b53;margin-top:8px;padding-top:12px}
.price-summary .deposit-note{font-size:12px;color:#8fd6ca;margin-top:10px}

/* checkout */
.checkout-lanes{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:28px}
@media(max-width:640px){.checkout-lanes{grid-template-columns:1fr}}
.lane{border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;background:#fff}
.lane h4{font-size:15px;margin-bottom:6px}
.lane p{font-size:13px;color:var(--steel);margin-bottom:0}

/* footer */
footer{background:var(--ink);color:#9aa2ab;padding:40px 0 28px;font-size:13px;margin-top:40px}
footer .foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
@media(max-width:640px){footer .foot-grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:13px;margin-bottom:10px}
footer a{display:block;padding:3px 0;color:#9aa2ab}
footer a:hover{color:#fff}
footer .legal{border-top:1px solid #2c3138;margin-top:24px;padding-top:16px;color:#6b7178}

/* hero photo — used on info/material pages that were previously text-only */
.hero-photo{width:100%;max-height:340px;object-fit:cover;border-radius:var(--radius-lg);margin:20px 0 8px}
.hero-photo-note{font-size:11px;color:var(--muted);margin-bottom:20px}

/* enquiry notice */
.enquire-notice{background:var(--amber-tint);border:1px solid #e7cf9f;color:#7a5416;border-radius:var(--radius);padding:16px 18px;margin-bottom:24px;font-size:14px}

/* form */
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.form-field input,.form-field textarea,.form-field select{width:100%;padding:10px 12px;border:1px solid var(--line-strong);border-radius:6px;font-size:15px;font-family:inherit}