:root{
  --navy:#1a2152; --navy-2:#232d65; --navy-3:#34418c; --brand-navy:#232d65;
  --red:#ef432a; --red-d:#c7321c;
  --ink:#16202e; --muted:#5b6b82; --line:#dde3ec; --bg:#f4f6fa; --card:#fff;
  --ok:#1f7a4d; --radius:10px;
  --shadow:0 1px 2px rgba(11,27,51,.06),0 8px 24px rgba(11,27,51,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;font-size:15.5px}
h1,h2,h3,.display{font-family:"Barlow",Inter,sans-serif;letter-spacing:-.01em;line-height:1.15;margin:0 0 .5em}
a{color:var(--navy-3)}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.eyebrow{font:600 12px/1 Inter,sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--red-d)}

/* header */
.topbar{background:var(--brand-navy);color:#c9cfe8;font-size:12.5px}
.topbar .wrap{display:flex;gap:16px;justify-content:space-between;align-items:center;padding-top:7px;padding-bottom:7px}
.topbar a{color:#fff;text-decoration:none;white-space:nowrap}
.nav{background:#fff;position:sticky;top:0;z-index:50;border-bottom:3px solid var(--red);box-shadow:0 2px 14px rgba(26,33,82,.10)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand img{height:62px;width:auto}
.wordmark{color:var(--red);font:800 22px/1 Barlow,sans-serif;letter-spacing:.06em}
.wordmark small{display:block;font:600 9px/1.6 Inter,sans-serif;letter-spacing:.32em;color:var(--brand-navy)}
.shoptag{color:var(--brand-navy);background:transparent;border:1.5px solid var(--brand-navy);font:700 11px/1 Inter,system-ui,sans-serif;letter-spacing:.12em;text-transform:uppercase;padding:6px 9px;border-radius:4px}
.links{display:flex;align-items:center;gap:4px}
.links a{color:var(--brand-navy);text-decoration:none;font-weight:500;font-size:14.5px;padding:9px 13px;border-radius:6px}
.links a:hover,.links a.on{color:var(--red-d);background:#f3f4fa}
.links .cart-link,.links .cart-link:hover{background:var(--red);color:#fff;margin-left:8px;display:flex;gap:8px;align-items:center}
.links .cart-link:hover{background:var(--red-d)}
.badge{background:#fff;color:var(--red);border-radius:99px;font:700 12px/1 Inter,system-ui,sans-serif;padding:4px 7px;min-width:22px;text-align:center}
.menu-btn{display:none;background:none;border:0;color:var(--brand-navy);font-size:26px;cursor:pointer}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,#3a4796 0%,transparent 60%),linear-gradient(180deg,var(--navy-2) 0%,#141a42 100%);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;top:40px;width:520px;height:2px;background:var(--red);transform:rotate(-24deg);opacity:.85}
.hero h1{font-size:clamp(34px,5vw,54px);font-weight:700;max-width:720px}
.hero .eyebrow{color:#ff7a62}
.hero p{color:#cdd2ea;max-width:620px;font-size:17px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.stats{display:flex;gap:40px;margin-top:40px;flex-wrap:wrap}
.stats div{border-left:2px solid var(--red);padding-left:14px}
.stats b{display:block;font:700 26px/1.1 Barlow,system-ui,sans-serif}
.stats span{color:#aab2d6;font-size:13px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px/1 Inter,system-ui,sans-serif;padding:14px 22px;border-radius:8px;border:1.5px solid transparent;cursor:pointer;text-decoration:none;transition:.15s}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red-d)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-line{border-color:var(--line);color:var(--navy);background:#fff}.btn-line:hover{border-color:var(--navy-3)}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy-3)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-block{width:100%}

/* sections */
section{padding:56px 0}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.sec-head h2{font-size:32px;margin:6px 0 0}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:8px 14px;font:500 13.5px Inter,system-ui,sans-serif;cursor:pointer;color:var(--ink)}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}

/* product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 130px;gap:14px;padding:22px;text-decoration:none;color:inherit;transition:.18s;position:relative;overflow:hidden}
.pcard:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--red);transform:scaleY(0);transform-origin:top;transition:.2s}
.pcard:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(11,27,51,.13)}
.pcard:hover:before{transform:scaleY(1)}
.pcard .cat{font:600 11px Inter,system-ui,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.pcard h3{font-size:24px;margin:6px 0 4px;color:var(--navy)}
.pcard p{margin:0 0 12px;color:var(--muted);font-size:14px}
.pcard .meta{font-size:13px;color:var(--ink)}
.pcard .meta b{color:var(--navy)}
.pcard .from{margin-top:14px;font:700 17px Barlow,system-ui,sans-serif;color:var(--navy)}
.pcard .from small{font:400 12px Inter,system-ui,sans-serif;color:var(--muted)}
.pcard img{width:130px;height:150px;object-fit:contain;align-self:center}
.pcard .go{color:var(--red);font-weight:600;font-size:14px;margin-top:10px;display:inline-block}

/* how it works */
.how{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{padding:22px;border-radius:var(--radius);background:var(--bg);position:relative}
.step:before{counter-increment:s;content:"0" counter(s);font:700 34px Barlow,system-ui,sans-serif;color:var(--red);display:block;margin-bottom:8px}
.step h3{font-size:18px}
.step p{margin:0;color:var(--muted);font-size:14px}
.assure{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:30px}
.assure div{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--muted)}
.assure b{color:var(--ink);display:block}
.ico{flex:0 0 36px;height:36px;border-radius:8px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:16px}

/* product page */
.crumbs{font-size:13px;color:var(--muted);padding:20px 0 0}
.crumbs a{color:var(--muted)}
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;padding:26px 0 40px;align-items:start}
.pd-media{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;display:grid;place-items:center;min-height:420px;position:sticky;top:96px}
.pd-media img{max-height:380px;object-fit:contain}
.pd h1{font-size:44px;color:var(--navy);margin-bottom:4px}
.pd .tag{font-size:17px;color:var(--muted);margin:0 0 18px}
.pd .summary{margin:0 0 22px}
.opt{margin-bottom:18px}
.opt label{display:block;font:600 13px Inter,system-ui,sans-serif;letter-spacing:.04em;margin-bottom:8px;color:var(--ink)}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{border:1.5px solid var(--line);background:#fff;border-radius:8px;padding:10px 14px;font:600 14px Inter,system-ui,sans-serif;cursor:pointer;min-width:56px;color:var(--ink)}
.pill:hover{border-color:var(--navy-3)}
.pill.on{border-color:var(--navy);background:var(--navy);color:#fff}
.buybox{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-top:6px}
.price{font:700 30px Barlow,system-ui,sans-serif;color:var(--navy)}
.price small{font:400 13px Inter,system-ui,sans-serif;color:var(--muted);margin-left:6px}
.poa{font:600 18px Barlow,system-ui,sans-serif;color:var(--navy)}
.qtyrow{display:flex;gap:12px;margin-top:14px}
.qty{display:flex;border:1.5px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.qty button{border:0;background:#fff;width:40px;font-size:18px;cursor:pointer;color:var(--navy)}
.qty input{width:52px;border:0;text-align:center;font:600 15px Inter,system-ui,sans-serif;-moz-appearance:textfield}
.qty input::-webkit-inner-spin-button{display:none}
.small{font-size:13px;color:var(--muted)}
.adv{columns:2;padding:0;margin:0;list-style:none}
.adv li{padding:4px 0 4px 20px;position:relative;font-size:14px;break-inside:avoid}
.adv li:before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;background:var(--red);border-radius:2px}
.tabs{margin-top:10px}
.spec{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.spec th,.spec td{padding:10px 12px;text-align:center;border-bottom:1px solid var(--line)}
.spec th:first-child,.spec td:first-child{text-align:left;font-weight:600}
.spec thead th{background:var(--navy);color:#fff;font-weight:600}
.spec td.sel,.spec th.sel{background:#fdecef;color:var(--red-d);font-weight:700}
.spec thead th.sel{background:var(--red);color:#fff}
.tablewrap{overflow-x:auto;border-radius:10px}

/* cart & checkout */
.page-title{padding:36px 0 10px}
.page-title h1{font-size:38px;color:var(--navy)}
.two{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start;padding-bottom:60px}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;box-shadow:var(--shadow)}
.panel h2{font-size:20px;color:var(--navy)}
.line{display:grid;grid-template-columns:72px 1fr auto auto;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.line:last-child{border-bottom:0}
.line img{width:72px;height:80px;object-fit:contain}
.line h3{font-size:17px;margin:0;color:var(--navy)}
.line .sub{font-size:13px;color:var(--muted)}
.line .lt{font:700 16px Barlow,system-ui,sans-serif;text-align:right;min-width:110px}
.rm{background:none;border:0;color:var(--muted);font-size:12.5px;cursor:pointer;padding:0;text-decoration:underline}
.sumrow{display:flex;justify-content:space-between;padding:7px 0;font-size:14.5px}
.sumrow.total{border-top:1px solid var(--line);margin-top:8px;padding-top:14px;font:700 20px Barlow,system-ui,sans-serif;color:var(--navy)}
.note{background:#f1f5fb;border-left:3px solid var(--navy-3);padding:12px 14px;border-radius:6px;font-size:13.5px;color:var(--ink);margin:14px 0}
.note.red{background:#fdf0f2;border-color:var(--red)}
.empty{text-align:center;padding:50px 20px}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:14px}
.field label{display:block;font:600 13px Inter,system-ui,sans-serif;margin-bottom:6px}
.field label .opt-t{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1.5px solid var(--line);border-radius:8px;font:15px Inter,system-ui,sans-serif;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--navy-3);box-shadow:0 0 0 3px rgba(29,58,102,.12)}
.field input:user-invalid{border-color:#e3a2ad}
fieldset{border:0;padding:0;margin:0 0 20px}
legend{font:700 17px Barlow,system-ui,sans-serif;color:var(--navy);margin-bottom:12px;padding:0}
.radio{display:flex;gap:10px;flex-wrap:wrap}
.radio label{flex:1;min-width:180px;border:1.5px solid var(--line);border-radius:8px;padding:12px 14px;cursor:pointer;display:flex;gap:10px;align-items:flex-start;font-weight:500;font-size:14px}
.radio label:has(input:checked){border-color:var(--navy);background:#f3f6fb}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.check input{margin-top:4px}
.mini-line{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;padding:6px 0;border-bottom:1px dashed var(--line)}
.done{text-align:center;max-width:640px;margin:40px auto 80px}
.done .tick{width:70px;height:70px;border-radius:50%;background:var(--ok);color:#fff;display:grid;place-items:center;font-size:34px;margin:0 auto 18px}
.ref{font:700 22px Barlow,system-ui,sans-serif;color:var(--navy);background:#fff;border:1px dashed var(--navy-3);border-radius:8px;padding:10px 16px;display:inline-block;margin:6px 0 16px}
.prose{max-width:820px;padding-bottom:60px}
.prose h2{font-size:22px;color:var(--navy);margin-top:30px}
.prose p,.prose li{color:#2d3a4d}
.kv{display:grid;grid-template-columns:160px 1fr;gap:6px 14px;font-size:14.5px}
.kv dt{color:var(--muted)}.kv dd{margin:0;font-weight:600}

/* footer */
footer{background:var(--navy);color:#c3c9e4;margin-top:0}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding-top:44px;padding-bottom:30px}
.foot strong{color:#fff;display:block;margin-bottom:10px;font-family:Barlow,system-ui,sans-serif;font-size:16px}
.foot p{margin:0;font-size:14px}
.foot a{display:block;color:#b9c4d6;text-decoration:none;font-size:14px;padding:3px 0;word-break:break-word}
.foot a:hover{color:#fff}
.legal{border-top:1px solid rgba(255,255,255,.1);padding-top:16px;padding-bottom:22px;font-size:12.5px;color:#8898b1}

#toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,120px);background:var(--navy);color:#fff;padding:14px 18px;border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.25);transition:.25s;z-index:99;font-size:14.5px;max-width:calc(100% - 32px)}
#toast.show{transform:translate(-50%,0)}
#toast a{color:#fff;font-weight:700;margin-left:10px}

@media (max-width:960px){
  .steps{grid-template-columns:1fr 1fr}
  .assure{grid-template-columns:1fr}
  .pd{grid-template-columns:1fr;gap:24px}
  .pd-media{position:static;min-height:300px}
  .two{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .wrap{padding:0 16px}
  .topbar .wrap{flex-direction:column;gap:4px;text-align:center}
  .menu-btn{display:block}
  .links{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;box-shadow:0 12px 20px rgba(26,33,82,.12);flex-direction:column;align-items:stretch;padding:10px 16px 16px;gap:2px}
  .menu-open .links{display:flex}
  .links .cart-link{margin:6px 0 0;justify-content:center}
  .shoptag{display:none}
  .brand img{height:50px}
  .hero{padding:44px 0 50px}
  .hero:after{display:none}
  .grid{grid-template-columns:1fr}
  .pcard{grid-template-columns:1fr 96px;padding:18px}
  .pcard img{width:96px;height:120px}
  .steps{grid-template-columns:1fr}
  .adv{columns:1}
  .pd h1{font-size:34px}
  form .row{grid-template-columns:1fr}
  .line{grid-template-columns:56px 1fr;gap:10px}
  .line img{width:56px;height:64px}
  .line .qty,.line .lt{grid-column:2}
  .line .lt{text-align:left}
  .foot{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}
}