:root{
  --bg:#ffffff; --bg-2:#f6f7f9; --ink:#12151c; --muted:#5b6472; --line:#e6e8ec;
  --brand:#111827; --accent:#f59e0b; --accent-2:#0f766e; --radius:14px; --max:1180px;
  --shadow:0 1px 2px rgba(16,20,28,.05),0 8px 24px rgba(16,20,28,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:13px}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(28px,5vw,44px);letter-spacing:-.02em}
h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.01em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  border:none;border-radius:999px;padding:13px 24px;font-weight:600;font-size:15px;
  background:var(--brand);color:#fff;transition:transform .08s ease,opacity .2s}
.btn:hover{opacity:.92}
.btn:active{transform:translateY(1px)}
.btn.alt{background:var(--accent);color:#111}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn.block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* header */
header#site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--max);margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;
  background:var(--brand);color:#fff;font-weight:800;font-size:15px}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{color:var(--muted);font-weight:500;font-size:15px}
.nav-links a:hover,.nav-links a.on{color:var(--ink)}
.cart-link{margin-left:auto;position:relative;color:var(--ink)}
.cart-count{position:absolute;top:-8px;right:-9px;min-width:18px;height:18px;padding:0 4px;
  display:inline-flex;align-items:center;justify-content:center;background:var(--accent);
  color:#111;font-size:11px;font-weight:700;border-radius:999px}

/* hero */
.hero{background:linear-gradient(135deg,#0b0f19,#1f2937 60%,#0f766e);color:#fff;overflow:hidden}
.hero-inner{max-width:var(--max);margin:0 auto;padding:64px 20px 72px;display:grid;
  grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}
.hero h1{color:#fff}
.hero p{color:#c9d2e0;font-size:18px;max-width:42ch}
.hero .kicker{color:var(--accent);font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:13px;margin-bottom:14px}
.hero-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.hero-art{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hero-art .tile{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);overflow:hidden}
.trust{display:flex;gap:26px;flex-wrap:wrap;justify-content:center;padding:18px 20px;
  background:var(--bg-2);border-bottom:1px solid var(--line);color:var(--muted);font-size:14px;font-weight:500}
.trust span{display:inline-flex;align-items:center;gap:8px}

/* sections */
section{padding:52px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.section-head .link{color:var(--accent-2);font-weight:600}

/* product grid */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(16,20,28,.12)}
.card-art{position:relative;aspect-ratio:1/1;background:var(--bg-2)}
.art-img{width:100%;height:100%;object-fit:cover;aspect-ratio:1/1;display:block}
.badge{position:absolute;top:10px;left:10px;background:var(--brand);color:#fff;font-size:11px;
  font-weight:700;padding:4px 9px;border-radius:999px;letter-spacing:.02em}
.badge.off{left:auto;right:10px;background:var(--accent);color:#111}
.card-body{padding:13px 14px 16px}
.card-cat{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.card-name{font-weight:600;font-size:15px;margin:3px 0 6px;min-height:2.6em}
.card-price{font-weight:700}
.card-price s{color:var(--muted);font-weight:400;font-size:13px;margin-left:6px}

/* filters */
.chips{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:24px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;
  font-size:14px;font-weight:500;cursor:pointer;color:var(--muted)}
.chip.on{background:var(--brand);color:#fff;border-color:var(--brand)}

/* product detail */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:36px 0}
.pd-art{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.pd-cat{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:12px;font-weight:600}
.pd-price{font-size:26px;font-weight:800;margin:10px 0}
.pd-price s{color:var(--muted);font-weight:400;font-size:17px;margin-left:8px}
.pd-price .save{color:#0f766e;font-size:14px;font-weight:700;margin-left:8px}
.size-row{display:flex;gap:9px;flex-wrap:wrap;margin:6px 0 20px}
.size{width:46px;height:46px;border:1.5px solid var(--line);border-radius:10px;background:#fff;
  font-weight:600;cursor:pointer}
.size.on{border-color:var(--brand);background:var(--brand);color:#fff}
.label{font-weight:600;font-size:14px;margin-bottom:8px;display:block}
.feature-list{margin:22px 0 0;padding:0;list-style:none}
.feature-list li{display:flex;gap:10px;padding:7px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.feature-list li b{color:var(--ink)}

/* cart */
.cart-wrap{display:grid;grid-template-columns:1.6fr .9fr;gap:28px;padding:30px 0}
.cart-row{display:grid;grid-template-columns:84px 1fr auto;gap:16px;align-items:center;
  padding:16px 0;border-bottom:1px solid var(--line)}
.cart-row .thumb{width:84px;height:84px;border-radius:10px;overflow:hidden;background:var(--bg-2);border:1px solid var(--line)}
.qty{display:inline-flex;align-items:center;border:1.5px solid var(--line);border-radius:10px;overflow:hidden}
.qty button{width:32px;height:34px;border:none;background:#fff;cursor:pointer;font-size:16px}
.qty span{width:34px;text-align:center;font-weight:600}
.summary{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:22px;height:fit-content}
.sum-row{display:flex;justify-content:space-between;padding:7px 0;color:var(--muted)}
.sum-row.total{color:var(--ink);font-weight:800;font-size:18px;border-top:1px solid var(--line);margin-top:8px;padding-top:14px}
.link-x{background:none;border:none;color:var(--muted);cursor:pointer;font-size:13px;text-decoration:underline}
.empty{text-align:center;padding:70px 20px;color:var(--muted)}

/* legal / content pages */
.page{padding:44px 0;max-width:820px;margin:0 auto}
.page h1{margin-bottom:6px}
.page .updated{color:var(--muted);font-size:14px;margin-bottom:28px}
.page h2{margin-top:32px}
.page p,.page li{color:#2b3240}
.page ul{padding-left:20px}
.info-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin:18px 0}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:8px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.field input,.field textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:11px 13px;font:inherit}

/* footer */
footer#site-footer{background:#0b0f19;color:#c9d2e0;margin-top:40px}
.foot-grid{max-width:var(--max);margin:0 auto;padding:46px 20px 28px;display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
.foot-grid h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.foot-grid a{display:block;color:#9aa6b8;padding:5px 0;font-size:14px}
.foot-grid a:hover{color:#fff}
.foot-brand{color:#fff;margin-bottom:10px}
.foot-bar{max-width:var(--max);margin:0 auto;padding:16px 20px 32px;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.08);color:#7d8798;font-size:13px}
.foot-bar .pay b{color:#c9d2e0}

@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr}.hero-art{max-width:420px}
  .pd,.cart-wrap{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:520px){.grid{grid-template-columns:repeat(2,1fr);gap:12px}.foot-grid{grid-template-columns:1fr}}