:root{
  --bg:#faf8f5; --surface:#ffffff; --soft:#f3efe9; --ink:#1c1a17; --muted:#6f6a63; --line:#e7e2db;
  --accent:#8a5a3b; --danger:#b3261e; --overlay:rgba(20,18,15,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
a{color:inherit}
button,select,input{font:inherit;color:inherit}
.serif{font-family:"Cormorant Garamond",Georgia,serif}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}

/* language blocks for long-form pages */
[data-lang]{display:none}
html[lang="en"] [data-lang="en"], html[lang="vi"] [data-lang="vi"]{display:block}

/* ---------- header ---------- */
.promo{background:var(--ink);color:#f3efe9;text-align:center;font-size:13px;padding:8px 16px}
.site-header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;height:64px}
.logo{font-size:26px;letter-spacing:.12em;font-weight:600;text-transform:uppercase;text-decoration:none;white-space:nowrap}
.controls{display:flex;align-items:center;gap:8px}
.controls select{border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:6px 8px;font-size:13px}
.cart-btn{position:relative;border:1px solid var(--ink);background:var(--ink);color:#fff;border-radius:6px;padding:7px 14px;font-size:13px;cursor:pointer;white-space:nowrap}
.badge{position:absolute;top:-7px;right:-7px;background:var(--accent);color:#fff;border-radius:999px;font-size:11px;min-width:18px;height:18px;display:grid;place-items:center;padding:0 4px}
.menu-btn{display:none;border:1px solid var(--line);background:var(--surface);border-radius:6px;width:36px;height:34px;cursor:pointer;font-size:18px}
.nav{display:flex;gap:4px;justify-content:center;flex-wrap:wrap;border-top:1px solid var(--line);padding:6px 0}
.nav a{text-decoration:none;font-size:13px;letter-spacing:.06em;text-transform:uppercase;padding:8px 12px;border-radius:4px;color:var(--muted)}
.nav a:hover{color:var(--ink);background:var(--soft)}
.nav a.on{color:var(--ink);font-weight:600;box-shadow:inset 0 -2px 0 var(--ink);border-radius:0}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--ink);color:#fff;border:0;border-radius:6px;padding:12px 22px;cursor:pointer;font-weight:500;text-decoration:none;text-align:center}
.btn.accent{background:var(--accent)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.link{border:0;background:none;color:var(--muted);text-decoration:underline;cursor:pointer;font-size:12px}

/* ---------- home ---------- */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;padding:56px 0}
.hero h1{font-size:clamp(40px,6vw,68px);line-height:1.02;font-weight:500}
.hero p{color:var(--muted);margin:16px 0 24px;max-width:440px}
.hero-art{aspect-ratio:4/5;border-radius:4px;background:linear-gradient(160deg,#d9c3ad,#8a5a3b 70%,#4a3021);position:relative;overflow:hidden}
.hero-art::after{content:"AW 26";position:absolute;bottom:18px;left:20px;color:#fff;font-family:"Cormorant Garamond",serif;font-size:28px;letter-spacing:.1em}
.perks{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;font-size:14px;color:var(--muted)}
.perks b{display:block;color:var(--ink);font-weight:600}
.tiles{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.tile{position:relative;aspect-ratio:3/4;border-radius:4px;overflow:hidden;text-decoration:none;color:#fff;display:flex;align-items:flex-end;padding:16px}
.tile svg{position:absolute;inset:18% 22% auto;width:56%;opacity:.35;color:#fff}
.tile span{position:relative;font-family:"Cormorant Garamond",serif;font-size:24px;line-height:1.1}
.tile:hover{filter:brightness(1.05)}

/* ---------- category page ---------- */
.page-hero{padding:40px 0 8px}
.crumbs{font-size:12px;color:var(--muted);margin-bottom:10px}
.crumbs a{text-decoration:none}
.page-hero h1{font-size:clamp(36px,5vw,56px);font-weight:500;line-height:1.05}
.page-hero p{color:var(--muted);max-width:620px;margin-top:8px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin:36px 0 20px}
.section-head h2{font-size:34px;font-weight:500}
.toolbar{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--muted)}
.toolbar select{border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:6px 8px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px 18px;margin-bottom:64px}
.card{cursor:pointer}
.thumb{aspect-ratio:3/4;border-radius:4px;display:grid;place-items:center;margin-bottom:10px;position:relative;overflow:hidden;transition:transform .3s}
.card:hover .thumb{transform:scale(1.015)}
.thumb svg{width:58%;height:58%;opacity:.85}
.tag{position:absolute;top:10px;left:10px;background:var(--surface);color:var(--ink);font-size:11px;padding:3px 8px;border-radius:3px;text-transform:uppercase;letter-spacing:.06em}
.card h3{font-size:15px;font-weight:500}
.card .price{color:var(--muted);font-size:14px}

/* ---------- long-form pages (size guide, policy) ---------- */
.doc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:40px;padding:24px 0 72px}
.doc > *{min-width:0}
.toc{position:sticky;top:150px;align-self:start;display:flex;flex-direction:column;gap:2px;font-size:14px}
.toc a{text-decoration:none;color:var(--muted);padding:6px 10px;border-left:2px solid var(--line)}
.toc a:hover{color:var(--ink);border-left-color:var(--ink)}
.doc section{margin-bottom:44px;scroll-margin-top:150px}
.doc h2{font-family:"Cormorant Garamond",Georgia,serif;font-size:30px;font-weight:500;margin-bottom:10px}
.doc h3{font-size:15px;margin:18px 0 6px}
.doc p,.doc li{color:#45413b;font-size:15px}
.doc ul,.doc ol{padding-left:20px;margin:8px 0}
.doc li{margin:4px 0}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:6px;background:var(--surface);margin:12px 0}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:520px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{background:var(--soft);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em}
tr:last-child td{border-bottom:0}
.callout{background:var(--soft);border-left:3px solid var(--accent);padding:12px 16px;border-radius:4px;font-size:14px;margin:12px 0}
.unit-toggle{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden;margin:6px 0}
.unit-toggle button{border:0;background:var(--surface);padding:6px 14px;cursor:pointer;font-size:13px}
.unit-toggle button.on{background:var(--ink);color:#fff}

/* ---------- overlays ---------- */
.overlay{position:fixed;inset:0;background:var(--overlay);z-index:40;display:none}
.overlay.open{display:block}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(420px,100%);background:var(--surface);z-index:50;transform:translateX(100%);transition:transform .3s;display:flex;flex-direction:column}
.drawer.open{transform:none}
.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-head h3{font-size:24px;font-weight:500}
.x{border:0;background:none;font-size:24px;cursor:pointer;line-height:1}
.drawer-body{flex:1;overflow:auto;padding:16px 20px}
.drawer-foot{border-top:1px solid var(--line);padding:16px 20px}
.line-item{display:grid;grid-template-columns:64px 1fr auto;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.line-item .mini{aspect-ratio:3/4;border-radius:3px}
.qty{display:inline-flex;border:1px solid var(--line);border-radius:4px;margin-top:6px}
.qty button{border:0;background:none;width:26px;cursor:pointer}
.qty span{min-width:22px;text-align:center}
.row{display:flex;justify-content:space-between;gap:12px;font-size:14px;margin:4px 0}
.row.total{font-size:17px;font-weight:600;margin-top:10px}
.empty{color:var(--muted);text-align:center;padding:48px 0}

.modal{position:fixed;inset:0;z-index:50;display:none;place-items:center;padding:16px}
.modal.open{display:grid}
.modal-box{background:var(--surface);border-radius:6px;width:min(880px,100%);max-height:92vh;overflow:auto;position:relative}
.modal-box > .x{position:absolute;top:12px;right:14px;z-index:2}
.pd{display:grid;grid-template-columns:1fr 1fr}
.pd .thumb{margin:0;border-radius:0;aspect-ratio:auto;min-height:420px}
.pd-info{padding:32px 28px}
.pd-info h3{font-size:32px;font-weight:500;line-height:1.1}
.pd-info .price{font-size:18px;margin:8px 0 16px}
.pd-info p{color:var(--muted);font-size:14px;margin-bottom:20px}
.label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:8px;display:flex;justify-content:space-between}
.label a{text-transform:none;letter-spacing:0}
.sizes{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.size{min-width:44px;border:1px solid var(--line);background:var(--surface);border-radius:4px;padding:8px 10px;cursor:pointer;font-size:13px}
.size.on{border-color:var(--ink);background:var(--ink);color:#fff}
.note{font-size:12px;color:var(--muted);margin-top:12px}

.checkout{display:grid;grid-template-columns:1.3fr 1fr}
.co-form{padding:32px 28px}
.co-sum{padding:32px 28px;background:var(--bg);border-left:1px solid var(--line)}
.co-form h3,.co-sum h3{font-size:26px;font-weight:500;margin-bottom:16px}
.field{display:flex;flex-direction:column;gap:4px;margin-bottom:12px;font-size:13px}
.field input,.field select{border:1px solid var(--line);border-radius:4px;padding:10px;background:var(--surface)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pay-box{border:1px dashed var(--line);border-radius:6px;padding:14px;font-size:13px;color:var(--muted);margin:8px 0 16px;background:var(--bg)}
.ship-opt{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:4px;padding:10px;margin-bottom:8px;font-size:14px;cursor:pointer}
.ship-opt span:last-child{margin-left:auto}
.success{padding:56px 28px;text-align:center}
.success h3{font-size:36px;font-weight:500}
.success p{color:var(--muted);margin:10px 0 24px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:40px 0 28px;color:var(--muted);font-size:14px;background:var(--surface)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;margin-bottom:24px}
.foot-grid h4{color:var(--ink);font-size:12px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.foot-grid a{display:block;text-decoration:none;padding:3px 0}
.foot-grid a:hover{color:var(--ink)}
.copy{border-top:1px solid var(--line);padding-top:16px;font-size:12px}

@media (max-width:960px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .tiles{grid-template-columns:repeat(3,1fr)}
  .doc{grid-template-columns:minmax(0,1fr);gap:20px}
  .toc{position:static;flex-direction:row;flex-wrap:wrap}
  .toc a{border-left:0;border-bottom:2px solid var(--line)}
}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav{display:none;flex-direction:column;align-items:stretch}
  .nav.open{display:flex}
  .nav a.on{box-shadow:inset 2px 0 0 var(--ink)}
  .hero{grid-template-columns:1fr;padding:32px 0}
  .hero-art{aspect-ratio:16/10}
  .grid{grid-template-columns:repeat(2,1fr)}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .pd,.checkout{grid-template-columns:1fr}
  .pd .thumb{min-height:300px}
  .co-sum{border-left:0;border-top:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .perks{grid-template-columns:1fr}
  .bar{gap:8px}
  .logo{font-size:16px;letter-spacing:.06em}
  .controls{gap:4px}
  .controls select{padding:5px 2px;font-size:12px}
  .cart-btn{padding:6px 9px;font-size:12px}
  .badge{right:-4px}
  .two{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}