:root{
  --navy:#1B365D;--navy2:#12243f;--orange:#E85D04;--orange2:#c44d03;
  --bg:#F4F6F8;--card:#fff;--line:#E2E8F0;--text:#0F172A;--muted:#64748B;
  --ok:#15803D;--warn:#B45309;--bad:#B91C1C;--chip:#ECFDF3;
  --radius:12px;--shadow:0 8px 24px rgba(15,23,42,.06);
  --touch:56px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,Arial,"Noto Sans SC",sans-serif;background:var(--bg);color:var(--text);min-height:100%}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:40}
.top-row{display:flex;align-items:center;gap:16px;padding:10px 18px;max-width:1280px;margin:auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
.brand b{display:block;font-size:15px;line-height:1}
.brand small{display:block;color:#cbd5e1;font-weight:500;font-size:11px}
.mark{width:28px;height:28px;border-radius:6px;background:linear-gradient(#fff,#e2e8f0);color:var(--navy);display:grid;place-items:center;font-weight:900}
.searchbar{flex:1;display:flex;background:#fff;border-radius:8px;overflow:hidden;min-width:180px}
.searchbar input{border:0;padding:10px 12px;flex:1;outline:none;color:var(--text)}
.searchbar button{border:0;background:var(--orange);color:#fff;padding:0 16px;font-weight:700;cursor:pointer}
.top-links{display:flex;gap:14px;align-items:center;font-size:13px;white-space:nowrap}
.top-links a{opacity:.9}
.subnav{background:var(--navy2);color:#e2e8f0;font-size:13px}
.subnav .wrap{max-width:1280px;margin:auto;display:flex;gap:18px;padding:8px 18px;overflow:auto}
.subnav a.active{color:#fff;font-weight:700;border-bottom:2px solid var(--orange);padding-bottom:4px}
.wrap{max-width:1280px;margin:auto;padding:16px 18px 40px}
.hero{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.hero h1{margin:0 0 6px;font-size:28px}
.hero p{margin:0 0 16px;color:var(--muted)}
.finder{display:grid;grid-template-columns:1.4fr .7fr .7fr .7fr .7fr auto;gap:8px}
.finder input,.finder select,.field{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px;background:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:12px 16px;font-weight:700;cursor:pointer}
.btn-orange{background:var(--orange);color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text)}
.btn-lg{min-height:var(--touch);font-size:18px;width:100%}
.grid{display:grid;gap:14px}
.cats{grid-template-columns:repeat(4,1fr);margin-top:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.card .ph{height:170px;background:#fff;display:grid;place-items:center;padding:10px}
.card .ph img{max-height:150px;object-fit:contain}
.card .bd{padding:12px}
.sku{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted)}
.price{font-size:20px;font-weight:800;color:var(--navy)}
.price s{color:var(--muted);font-size:13px;font-weight:500;margin-left:6px}
.badge{display:inline-flex;align-items:center;gap:4px;background:var(--chip);color:var(--ok);font-size:12px;font-weight:700;border-radius:999px;padding:3px 8px}
.badge.warn{background:#FEF3C7;color:var(--warn)}
.badge.bad{background:#FEE2E2;color:var(--bad)}
.muted{color:var(--muted);font-size:13px}
.layout{display:grid;grid-template-columns:250px 1fr;gap:16px}
.filters{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;height:fit-content}
.filters h3{margin:0 0 10px;font-size:14px}
.filters label{display:flex;gap:8px;margin:8px 0;font-size:13px}
.prod-grid{grid-template-columns:repeat(3,1fr)}
.pdp{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pdp-photo{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;display:grid;place-items:center;min-height:420px}
.pdp-photo img{max-height:380px;object-fit:contain}
table{width:100%;border-collapse:collapse}
th,td{border-bottom:1px solid var(--line);text-align:left;padding:8px;font-size:14px}
.cart-item{display:grid;grid-template-columns:90px 1fr auto auto;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px}
.cart-item img{width:90px;height:70px;object-fit:contain}
.stepper{display:flex;align-items:center;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.stepper button{width:36px;height:36px;border:0;background:#f8fafc;cursor:pointer}
.stepper span{width:36px;text-align:center}
.footer{background:var(--navy);color:#cbd5e1;padding:28px 18px;margin-top:24px;font-size:13px}
.footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px;padding:0}
.wh{max-width:720px;margin:auto;padding:12px}
.wh-top{background:var(--navy);color:#fff;padding:14px 16px;display:flex;justify-content:space-between;align-items:center}
.task{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;margin:12px 0}
.task h2{margin:0 0 8px;font-size:22px}
.bin{font-size:32px;font-weight:900;letter-spacing:.04em}
.qty-big{font-size:42px;font-weight:900}
.wh-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.scan{min-height:64px;font-size:20px}
.ok-wide{grid-column:1/-1;background:var(--ok);color:#fff;min-height:72px;font-size:22px}
.tabbar{position:sticky;bottom:0;background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);text-align:center;padding:8px 0;font-size:11px}
.tabbar a{color:var(--muted)}
.tabbar a.on{color:var(--navy);font-weight:800}
.chiprow{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
.shop-chip{background:#DBEAFE;color:#1E3A8A;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700}
@media(max-width:900px){
  .finder,.cats,.prod-grid,.pdp,.layout,.footer .wrap,.cart-item{grid-template-columns:1fr}
  .top-links .hide{display:none}
  .searchbar{display:none}
  .pdp-photo{min-height:240px}
  .wh-actions{grid-template-columns:1fr}
}