:root{
  --bg:#F2F4F6; --surface:#FFFFFF; --ink:#12202E; --muted:#5B6B7A; --line:#D3DAE1;
  --accent:#E4611B; --accent-ink:#FFFFFF; --brand:#1D4E89; --soft:#E9EEF3;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0F161D; --surface:#161F29; --ink:#E8EDF1; --muted:#9AA8B4; --line:#2A3641;
    --accent:#F07A36; --accent-ink:#0F161D; --brand:#7FB0E8; --soft:#1E2934;
  }
}
:root[data-theme="dark"]{
  --bg:#0F161D; --surface:#161F29; --ink:#E8EDF1; --muted:#9AA8B4; --line:#2A3641;
  --accent:#F07A36; --accent-ink:#0F161D; --brand:#7FB0E8; --soft:#1E2934;
}

*{box-sizing:border-box}
html{color-scheme:light dark}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"IBM Plex Sans",system-ui,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

.top{position:sticky;top:0;z-index:5;background:var(--surface);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.logo{display:flex;align-items:center;gap:10px;font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:700;font-size:28px;letter-spacing:.04em;text-transform:uppercase;text-decoration:none}
.logo i{width:14px;height:14px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 4px var(--soft)}
.logo small{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-weight:400;font-size:11px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-left:6px}
.phone{display:flex;align-items:baseline;gap:14px;text-decoration:none}
.phone .num{white-space:nowrap;font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:700;font-size:34px;letter-spacing:.02em;line-height:1;font-variant-numeric:tabular-nums}
.phone .lbl{white-space:nowrap;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

.hero{padding:56px 0 40px;border-bottom:1px solid var(--line)}
.hero h1{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:600;font-size:clamp(34px,5vw,58px);line-height:1;letter-spacing:-.01em;margin:0 0 14px;max-width:16ch;text-wrap:balance}
.hero p{max-width:60ch;margin:0 0 26px;color:var(--muted);font-size:18px}
.contacts{display:flex;flex-wrap:wrap;gap:12px}
.chip{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border:1px solid var(--line);background:var(--surface);text-decoration:none;font-weight:500}
.chip b{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-weight:500;font-size:15px}
.chip .k{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.chip.hot{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.chip.hot .k{color:inherit;opacity:.8}

.catalog{padding:40px 0 16px}
.catalog-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--ink);padding-bottom:8px;margin-bottom:8px}
.catalog-head h2{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:600;font-size:26px;margin:0;text-transform:uppercase;letter-spacing:.04em}
.catalog-head span{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted);letter-spacing:.06em}
.product{display:grid;grid-template-columns:280px 1fr 220px;gap:32px;padding:32px 0;border-bottom:1px solid var(--line);align-items:start}
.photo{margin:0;background:#FFFFFF;border:1px solid var(--line);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.photo img{width:100%;height:100%;object-fit:contain;display:block}
.eyebrow{display:flex;gap:16px;align-items:baseline;flex-wrap:wrap;margin-bottom:6px}
.cat{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);font-weight:600}
.sku{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted)}
.product h2{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:600;font-size:32px;line-height:1.05;margin:0 0 12px;text-wrap:balance}
.desc{margin:0 0 18px;max-width:62ch}
.specs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;border-top:1px solid var(--line)}
.spec{padding:10px 12px 10px 0;border-right:1px solid var(--line);margin-right:12px}
.spec:last-child{border-right:0}
.spec dt{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.spec dd{margin:2px 0 0;font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:14px;font-weight:500}
.buy{background:var(--surface);border:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:10px}
.price{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:700;font-size:46px;line-height:1;font-variant-numeric:tabular-nums}
.price .cur{font-size:26px;vertical-align:top;margin-right:2px;color:var(--muted)}
.stock{font-size:13px;color:var(--muted);margin-bottom:6px}
.btn{display:block;text-align:center;padding:12px 14px;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;font-size:15px;letter-spacing:.02em}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}

.order{padding:48px 0 56px}
.order h2{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:600;font-size:26px;margin:0 0 20px;text-transform:uppercase;letter-spacing:.04em}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.col{background:var(--surface);border-top:3px solid var(--brand);padding:22px 22px 24px}
.col h3{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:600;font-size:22px;margin:0 0 10px;letter-spacing:.02em}
.col p{margin:0 0 10px}
.col ul{margin:0;padding-left:18px}
.col li{margin:4px 0}
.col .big{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;font-weight:700;font-size:30px;line-height:1.1;display:block;margin:6px 0 2px;text-decoration:none}
.col .em{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:15px;text-decoration:none;display:block;margin-top:6px}
.col .addr{margin-top:12px}

footer{border-top:1px solid var(--line);padding:22px 0 40px;color:var(--muted);font-size:13px}

@media (max-width:900px){
  .product{grid-template-columns:200px 1fr}
  .buy{grid-column:1/-1;flex-direction:row;flex-wrap:wrap;align-items:center}
  .buy .price{flex:1 1 100%}
  .buy .btn{flex:1 1 40%}
  .specs{grid-template-columns:repeat(2,1fr)}
  .spec:nth-child(2){border-right:0}
  .cols{grid-template-columns:1fr}
}
@media (max-width:600px){
  .product{grid-template-columns:1fr}
  .photo{max-width:320px}
  .top .wrap{justify-content:center;text-align:center;gap:10px}
  .phone{flex-direction:column;align-items:center;gap:2px}
  .phone .num{font-size:30px}
}
@media (prefers-reduced-motion:no-preference){
  .btn,.chip{transition:filter .15s}
  .btn:hover,.chip:hover{filter:brightness(.93)}
}