/* Tiệm Gốm Mẫu — demo. Token theo design/README.md của portfolio (navy, kem, hổ phách). Không tải phông ngoài. */
:root{
  --navy-900:#08172C;--navy-800:#0B1F3A;--navy-700:#14325C;--navy-500:#2F5A92;--navy-300:#9DB4D3;
  --cream-50:#FBF8F1;--cream-100:#F6F0E3;--cream-200:#EADFC8;--cream-300:#D9CBAE;
  --accent:#E58A2B;--accent-ink:#8F4309;--ink:#0B1F3A;--muted:#44546B;--line:rgba(11,31,58,.16);--ok:#1F6B45;--err:#A4262C;
  --f-display:"Bricolage Grotesque","Be Vietnam Pro",system-ui,"Segoe UI",sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:ui-monospace,"JetBrains Mono",Consolas,monospace;
  --r1:4px;--r2:10px;--r3:20px;--shadow:0 1px 0 rgba(11,31,58,.06),0 12px 28px -14px rgba(11,31,58,.28);--wrap:1180px;--ease:cubic-bezier(.2,.7,.2,1)
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:400 17px/1.6 var(--f-body);color:var(--ink);background:var(--cream-50);overflow-x:hidden}
body.lock{overflow:hidden}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;margin:0 0 12px;letter-spacing:-.015em;font-weight:700;text-wrap:balance}
h1{font-size:clamp(1.9rem,6.4vw,3.2rem)}h2{font-size:clamp(1.4rem,4vw,2rem)}h3,.h3{font-size:1.1rem;font-family:var(--f-display);font-weight:700}
p{margin:0 0 12px;overflow-wrap:anywhere}
a{color:inherit}
button,input,select{font:inherit;color:inherit}
img,svg{max-width:100%}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 16px}
@media(min-width:768px){.wrap{padding:0 32px}}
.pad{padding-top:32px;padding-bottom:64px}
.muted{color:var(--muted)}.sm{font-size:.88rem}
.hint{font-size:.9rem;color:var(--muted);margin:6px 0 0;min-height:0}
.hint:empty{display:none}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--navy-900);padding:12px 16px;z-index:200}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:3px}
[hidden]{display:none!important}
h1:focus{outline:none}
main:focus{outline:none}

/* topbar + header */
.topbar{background:var(--navy-900);color:var(--cream-100);font-size:.86rem}
.topbar-in{display:flex;flex-wrap:wrap;gap:4px 16px;align-items:center;justify-content:space-between;min-height:44px;padding-top:4px;padding-bottom:4px}
.topbar a{color:var(--accent);font-weight:600;min-height:44px;display:inline-flex;align-items:center;white-space:nowrap}
.hdr{position:sticky;top:0;z-index:50;background:rgba(251,248,241,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:12px;min-height:64px}
.logo{font:800 1.15rem var(--f-display);text-decoration:none;display:flex;align-items:center;gap:8px;min-height:44px;margin-right:auto;white-space:nowrap}
.logo i{font-style:normal;color:var(--accent-ink)}
.logo-mark{width:26px;height:26px;border-radius:8px;background:var(--navy-800);position:relative;flex:none}
.logo-mark::after{content:"";position:absolute;left:5px;right:5px;top:9px;height:9px;border-radius:2px 2px 9px 9px;background:var(--accent)}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:2px;background:var(--cream-100)}
.lang button{font:600 .82rem var(--f-mono);border:0;background:none;min-width:44px;min-height:44px;border-radius:999px;cursor:pointer;color:var(--muted)}
.lang button[aria-pressed=true]{background:var(--navy-800);color:var(--cream-50)}
.cart-btn{position:relative;min-width:48px;min-height:48px;border-radius:999px;border:2px solid var(--navy-800);background:none;display:grid;place-items:center;cursor:pointer}
.cart-btn:hover{background:var(--cream-200)}
.cart-count{position:absolute;top:-6px;right:-6px;min-width:22px;height:22px;border-radius:11px;background:var(--accent);color:var(--navy-900);font:700 .78rem/22px var(--f-mono);text-align:center;padding:0 5px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px 22px;border-radius:999px;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .2s var(--ease),background .2s;text-align:center}
.btn:hover{transform:translateY(-2px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn-primary{background:var(--accent);color:var(--navy-900)}
.btn-primary:hover:not(:disabled){background:#F09A40}
.btn-dark{background:var(--navy-800);color:var(--cream-50)}
.btn-ghost{border-color:var(--navy-800);background:none}
.btn-ghost:hover{background:var(--cream-200)}
.btn-ghost-l{border-color:var(--navy-800);background:none}
.btn-ghost-d{border-color:var(--navy-300);color:var(--cream-100);background:none}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.link-btn{background:none;border:0;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;cursor:pointer;min-height:44px;padding:0 6px;color:var(--ink);font-size:.92rem}
.icon-btn{width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:none;font-size:1.6rem;line-height:1;cursor:pointer}

/* hero */
.hero{background:var(--navy-800);color:var(--cream-100);padding:32px 0 40px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(157,180,211,.07) 1px,transparent 1px) 0 0/48px 48px,linear-gradient(90deg,rgba(157,180,211,.07) 1px,transparent 1px) 0 0/48px 48px;pointer-events:none}
.hero-in{position:relative;display:grid;gap:24px}
.hero h1{color:var(--cream-50)}
.hero .lead{color:var(--navy-300);max-width:52ch;margin:0}
.eyebrow{font:500 .78rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);flex:none}
.hero-art{display:none}
@media(min-width:700px){.hero-in{grid-template-columns:1.3fr 1fr;align-items:center}.hero-art{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.hero-art .art{border-radius:var(--r2);aspect-ratio:3/4}}
.art{display:block;width:100%;height:100%}

/* shop layout */
.shop{display:grid;gap:16px;padding-top:24px;padding-bottom:56px}
@media(min-width:900px){.shop{grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start}.filters{position:sticky;top:84px}}
.filters summary{list-style:none;min-height:48px;display:flex;align-items:center;padding:0 16px;border:1px solid var(--line);border-radius:var(--r2);font-weight:600;cursor:pointer;background:var(--cream-100)}
.filters summary::-webkit-details-marker{display:none}
.filters summary::after{content:"+";margin-left:auto;font-size:1.3rem}
.filters details[open] summary::after{content:"−"}
@media(min-width:900px){.filters summary{pointer-events:none;border:0;background:none;padding:0;font:700 1.1rem var(--f-display)}.filters summary::after{content:none}}
.fbody{padding:16px 0;display:grid;gap:18px}
fieldset{border:0;padding:0;margin:0;min-width:0}
legend{font-weight:600;padding:0;margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:44px;padding:8px 16px;border-radius:999px;border:1.5px solid var(--navy-800);background:none;cursor:pointer;display:inline-flex;align-items:center;font-size:.95rem}
.chip[aria-pressed=true],.chip-r:has(input:checked){background:var(--navy-800);color:var(--cream-50)}
.chip-r{position:relative}
.chip-r input{position:absolute;opacity:0;inset:0;cursor:pointer;margin:0}
.chip-r:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:3px}
.range{display:grid;gap:2px;margin-bottom:6px}
.range label{font-size:.88rem;color:var(--muted)}
input[type=range]{width:100%;min-height:44px;accent-color:var(--accent-ink);margin:0}
#prange{display:block;font:600 .85rem var(--f-mono);color:var(--accent-ink)}
.chk{display:flex;align-items:center;gap:12px;min-height:44px;cursor:pointer}
.chk input{width:24px;height:24px;accent-color:var(--navy-800);flex:none}
.bar{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;margin-bottom:16px}
.bar p{margin:0;font-weight:600}
.sortl{display:flex;align-items:center;gap:10px;font-size:.95rem}
select,input:not([type=range]):not([type=radio]):not([type=checkbox]){min-height:48px;font-size:16px;padding:8px 12px;border:1.5px solid var(--navy-800);border-radius:var(--r2);background:#fff;width:100%;max-width:100%}
.sortl select{width:auto;min-width:0}
.grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media(min-width:640px){.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
@media(min-width:1100px){.shop .grid{grid-template-columns:repeat(3,minmax(0,1fr))}.related .grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.none{grid-column:1/-1;padding:32px;text-align:center;color:var(--muted)}
.card-a{display:block;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:var(--r3);overflow:hidden;height:100%;transition:transform .2s var(--ease),box-shadow .2s}
.card-a:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card-img{aspect-ratio:1;position:relative}
.tag-sale{position:absolute;top:8px;left:8px;background:var(--accent);color:var(--navy-900);font:700 .74rem var(--f-mono);padding:4px 8px;border-radius:999px}
.card-b{padding:12px 14px 16px}
.card-b h3{font-size:1rem;margin-bottom:6px}
.price-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 10px}
.price-row b{font-size:1.02rem}.price-row s{color:var(--muted);font-size:.88rem}
.price-row.big b{font-size:1.7rem;font-family:var(--f-display)}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin-top:6px;font-size:.88rem}
.stars{color:var(--accent-ink);font-weight:600}.stars small{color:var(--muted);font-weight:400}
.badge{font:600 .75rem var(--f-mono);padding:3px 9px;border-radius:999px;white-space:nowrap}
.b-ok{background:#DCEFE3;color:var(--ok)}.b-low{background:#FBE7CC;color:var(--accent-ink)}.b-out{background:#F3D8DA;color:var(--err)}

/* pdp */
.crumbs{padding:16px 0 8px;font-size:.92rem;color:var(--muted)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px}
.pdp{display:grid;gap:24px;padding-bottom:32px}
@media(min-width:800px){.pdp{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;align-items:start}.gal{position:sticky;top:84px}}
.gal-main{aspect-ratio:1;border-radius:var(--r3);overflow:hidden;border:1px solid var(--line)}
.thumbs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:8px}
.thumb{padding:0;border:2px solid transparent;border-radius:var(--r2);overflow:hidden;cursor:pointer;aspect-ratio:1;min-height:44px;background:none}
.thumb[aria-pressed=true]{border-color:var(--accent)}
.opt{margin:18px 0}
.lbl{display:block;font-weight:600;margin-bottom:8px}
.swatches{display:flex;flex-wrap:wrap;gap:10px}
.sw{position:relative;width:48px;height:48px;display:block;cursor:pointer}
.sw input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer;width:100%;height:100%}
.sw-dot{display:block;width:100%;height:100%;border-radius:50%;border:2px solid var(--line)}
.sw input:checked+.sw-dot{border-color:var(--navy-800);outline:2px solid var(--navy-800);outline-offset:2px}
.sw input:focus-visible+.sw-dot{outline:3px solid var(--accent);outline-offset:3px}
.qty{display:inline-flex;align-items:center;border:1.5px solid var(--navy-800);border-radius:999px;overflow:hidden;background:#fff}
.qty button{width:48px;height:48px;border:0;background:none;font-size:1.3rem;cursor:pointer}
.qty button:hover:not(:disabled){background:var(--cream-200)}
.qty button:disabled{opacity:.4}
.qty input{width:56px!important;min-height:48px;border:0!important;text-align:center;padding:0!important;border-radius:0!important}
.qty.sm button{width:44px;height:44px}
.qv{min-width:30px;text-align:center;font-weight:600}
.facts{list-style:none;padding:0;margin:20px 0 0;color:var(--muted);font-size:.95rem;display:grid;gap:6px}
.facts li::before{content:"· ";color:var(--accent-ink);font-weight:700}
.related{padding:24px 0 56px;border-top:1px solid var(--line)}

/* cart, drawer, summary */
.two{display:grid;gap:24px}
@media(min-width:900px){.two{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;align-items:start}.two>.panel,.two>aside{position:sticky;top:84px}}
.panel{background:var(--cream-100);border:1px solid var(--line);border-radius:var(--r3);padding:20px}
.lines{list-style:none;margin:0;padding:0}
.line{display:grid;grid-template-columns:76px minmax(0,1fr);gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.line-img{width:76px;height:76px;border-radius:var(--r2);overflow:hidden}
.line-b{display:grid;gap:2px;min-width:0}
.line-n{font-weight:600;text-decoration:none;min-height:24px;overflow-wrap:anywhere}
.line-n:hover{text-decoration:underline}
.line-r{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;margin-top:6px}
.line-r b{margin-left:auto}
.sum{margin:12px 0}
.sum div{display:flex;justify-content:space-between;gap:12px;padding:5px 0}
.sum dt{color:var(--muted)}.sum dd{margin:0;font-weight:600;text-align:right}
.sum-t{border-top:1px solid var(--line);margin-top:6px;padding-top:12px!important;font-size:1.15rem}
.sum-t dt{color:var(--ink);font-weight:700}
.coupon{margin:14px 0}
.coupon label{display:block;font-weight:600;margin-bottom:6px}
.coupon-r{display:flex;gap:8px}.coupon-r .btn{flex:none;min-width:48px;padding:10px 16px}
.hint.bad,.bad{color:var(--err)}
input[aria-invalid=true],select[aria-invalid=true]{border-color:var(--err);border-width:2px}
.mini{list-style:none;margin:0 0 8px;padding:0;display:grid;gap:8px}
.mini li{display:flex;justify-content:space-between;gap:12px}
.mini small{color:var(--muted)}
.overlay{position:fixed;inset:0;background:rgba(8,23,44,.55);z-index:90}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(440px,100vw);background:var(--cream-50);z-index:100;display:flex;flex-direction:column;box-shadow:-12px 0 40px rgba(8,23,44,.3);animation:slide .25s var(--ease)}
.drawer-h{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line)}
.drawer-h h2{margin:0;font-size:1.25rem}
.drawer-b{flex:1;overflow-y:auto;padding:8px 16px 24px;overscroll-behavior:contain}
.drawer-act{display:grid;gap:10px;margin-top:8px}
@keyframes slide{from{transform:translateX(30px);opacity:0}to{transform:none;opacity:1}}

/* checkout */
.note-demo{background:#FBE7CC;border-left:4px solid var(--accent);padding:10px 14px;border-radius:var(--r1);max-width:70ch}
.fld{margin-bottom:16px}
.fld label{display:block;font-weight:600;margin-bottom:6px}
.err{color:var(--err);font-size:.9rem;margin:6px 0 0}.err:empty{display:none}
.err-sum{background:#F3D8DA;color:var(--err);border:1px solid var(--err);border-radius:var(--r2);padding:12px 14px;margin-bottom:16px;font-weight:600}
.rad{display:flex;align-items:center;gap:12px;min-height:52px;padding:8px 14px;border:1.5px solid var(--line);border-radius:var(--r2);margin-bottom:8px;cursor:pointer;background:#fff}
.rad:has(input:checked){border-color:var(--navy-800);background:var(--cream-100)}
.rad input{width:22px;height:22px;accent-color:var(--navy-800);flex:none}
.rad span{display:flex;flex:1;justify-content:space-between;gap:12px;flex-wrap:wrap}
.code{font:700 clamp(1.5rem,6vw,2.2rem) var(--f-mono);letter-spacing:.06em;margin:0 0 14px;overflow-wrap:anywhere}
.qr-box{width:min(240px,100%);margin:8px 0 14px;border:6px solid #fff;box-shadow:var(--shadow)}
.qr{display:block;width:100%;height:auto}
.done .lead{color:var(--muted);max-width:60ch}

/* tech + footer */
.tech{padding-top:8px;padding-bottom:40px}
.tech details{border:1px solid var(--line);border-radius:var(--r2);background:var(--cream-100)}
.tech summary{min-height:52px;display:flex;align-items:center;padding:0 18px;font:700 1.05rem var(--f-display);cursor:pointer}
.tech details>div{padding:0 18px 18px}
.tech-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
@media(min-width:800px){.tech-list{grid-template-columns:1fr 1fr;gap:16px 32px}}
.tech-list li{display:grid;gap:2px;font-size:.95rem}
.tech-list b{font-family:var(--f-display)}.tech-list span{color:var(--muted)}
.ftr{background:var(--navy-900);color:var(--cream-100);padding:24px 0}
.ftr-in{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.ftr p{margin:0;max-width:70ch;font-size:.92rem;color:var(--navy-300)}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.btn:hover,.card-a:hover{transform:none}}