:root{--bg:#0e1116;--surface:#171b22;--line:#262c36;--text:#eef1f5;--muted:#8f99a8;--accent:#60a5fa;--on-accent:#06192e;--r:14px;--bar:64px}
:root[data-theme=light]{--bg:#f6f7f9;--surface:#fff;--line:#e3e6ea;--text:#12161c;--muted:#5d6775;--accent:#2563eb;--on-accent:#fff}
*{box-sizing:border-box;margin:0}
body{font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);padding-bottom:calc(var(--bar) + env(safe-area-inset-bottom) + 76px)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.wrap{max-width:560px;margin:0 auto;padding:0 16px}
.top{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:12px;height:56px}
.top img.mk{width:auto;height:28px}.ml{display:none}[data-theme=light] .ml{display:block}[data-theme=light] .md{display:none}
.top b{font-size:15px;letter-spacing:.04em}.top small{display:block;font-size:12px;color:var(--muted);line-height:1.1}
.top .sp{flex:1}
.ib{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line)}
h1{font-size:28px;line-height:1.2;margin:24px 0 8px}
.lede{color:var(--muted);margin-bottom:20px}
.eyebrow{font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:700;text-transform:uppercase}
.seg{display:flex;gap:8px;overflow-x:auto;padding:4px 0 16px;scrollbar-width:none}
.chip{flex:none;min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--muted)}
.chip[aria-pressed=true]{border-color:var(--accent);color:var(--text);box-shadow:inset 0 0 0 1px var(--accent)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:12px;display:block}
.card img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:var(--line)}
.card .b{padding:14px 16px 16px}
.tag{font-size:12px;color:var(--muted);letter-spacing:.06em}
.card h3{font-size:16px;line-height:1.35;margin:4px 0 6px}
.card p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.price{font-weight:800;font-size:18px;margin-top:10px}
.hot{position:absolute;top:12px;left:12px;background:var(--accent);color:var(--on-accent);font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px}
.rel{position:relative}
.sec{display:flex;justify-content:space-between;align-items:end;margin:28px 0 12px}
.sec h2{font-size:20px}
.sec a{color:var(--accent);font-size:14px;min-height:44px;display:flex;align-items:center}
.row{display:flex;gap:12px;align-items:center;padding:14px 16px;min-height:64px}
.row .ico{width:40px;height:40px;border-radius:10px;background:var(--line);display:grid;place-items:center;flex:none}
.row small{display:block;color:var(--muted);font-size:13px;line-height:1.35}
.empty{padding:24px;text-align:center;color:var(--muted);font-size:14px}
/* bottom action bar */
.cta{position:fixed;left:0;right:0;bottom:calc(var(--bar) + env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--line);padding:10px 16px}
.cta .in{max-width:560px;margin:0 auto}
.cta .sum{font-size:13px;color:var(--muted);margin-bottom:6px}
.btn{width:100%;min-height:48px;border-radius:12px;background:var(--accent);color:var(--on-accent);font-weight:700;display:flex;align-items:center;justify-content:center}
/* tab bar */
.tabs{position:fixed;left:0;right:0;bottom:0;height:calc(var(--bar) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--surface);border-top:1px solid var(--line);display:flex}
.tabs a,.tabs button{flex:1;min-height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:12px;color:var(--muted)}
.tabs .on{color:var(--accent)}
svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
/* sheet */
.scrim{position:fixed;inset:0;background:#0008;opacity:0;pointer-events:none;transition:.2s;z-index:10}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:11;background:var(--surface);border-radius:20px 20px 0 0;padding:16px 16px calc(16px + env(safe-area-inset-bottom));transform:translateY(105%);transition:transform .25s;max-width:560px;margin:0 auto}
.open .scrim{opacity:1;pointer-events:auto}.open .sheet{transform:none}
.sheet header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.sheet .card{margin:0 0 8px}
.dnav,.dcta{display:none}
.top b,.top small,.dnav a,.dnav button,.dcta{white-space:nowrap}
@media(min-width:768px) and (max-width:1099px){.dcta{display:none!important}.top small{display:none}}
.dnav a,.dnav button{min-height:44px;padding:0 14px;display:flex;align-items:center;border-radius:10px;color:var(--muted)}
.dnav .on{color:var(--text)}
.dcta{min-height:44px;padding:0 18px;border-radius:12px;background:var(--accent);color:var(--on-accent);font-weight:700;align-items:center}
/* tablet */
@media(min-width:768px){
 body{padding-bottom:0}
 .wrap{max-width:900px;padding:0 32px}
 .cta,.tabs{display:none}
 .dnav,.dcta{display:flex}
 .top .wrap{height:64px}
 h1{font-size:40px}
 #list{display:grid;grid-template-columns:1fr 1fr;gap:16px}#list .card{margin:0}
 .sheet{bottom:auto;top:50%;left:50%;right:auto;width:440px;border-radius:20px;transform:translate(-50%,-45%);opacity:0;pointer-events:none;transition:.2s}
 .open .sheet{transform:translate(-50%,-50%);opacity:1;pointer-events:auto}
}
/* desktop */
@media(min-width:1100px){
 .wrap{max-width:1180px;padding:0 40px}
 .hero{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;padding:32px 0}
 .hero .intro{padding-right:8px}
 h1{font-size:56px;letter-spacing:-.02em}
 .lede{font-size:18px;max-width:480px}
 .feat{margin:0}
 #list{grid-template-columns:repeat(3,1fr)}
 .card{transition:border-color .15s,transform .15s}.card:hover{border-color:var(--accent);transform:translateY(-2px)}
 .dnav a:hover,.dnav button:hover{color:var(--text)}
}
footer{margin-top:32px;padding:20px 0;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
footer nav{display:flex;flex-wrap:wrap;gap:4px 16px;margin-bottom:10px}footer nav a{min-height:44px;display:flex;align-items:center}
/* ---- trang con */
.brandlink{display:flex;align-items:center;gap:12px}
.dgh{display:none;min-height:44px;padding:0 14px;align-items:center;color:var(--muted);white-space:nowrap}
.mob{display:grid}
.grid,.cats{display:grid;gap:12px}.grid .card,.cats .card{margin:0}
.card s,.price s{color:var(--muted);font-weight:400;font-size:14px;margin-left:6px}
.meta{font-size:13px;color:var(--muted)}.small{font-size:13px;color:var(--muted);margin-top:10px}.small a,.lnk{color:var(--accent)}
.tools{display:flex;gap:8px;margin-bottom:12px}
input,select{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:12px;min-height:48px;padding:0 14px;min-width:0}
.tools input{flex:1}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}
.crumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:16px 0 4px;font-size:13px;color:var(--muted)}.crumb a{min-height:32px;display:flex;align-items:center}
.pd{display:grid;gap:16px}.pd h1{margin-top:8px}.pimg{width:100%;border-radius:var(--r);border:1px solid var(--line);margin:12px 0;display:block}
.price.big{font-size:30px;line-height:1.2}.price em{font-style:normal;font-size:13px;background:#ef444433;color:#f87171;border-radius:999px;padding:2px 10px;margin-left:6px;vertical-align:middle}
.ticks{list-style:none;padding:0;margin:14px 0;font-size:14px;display:grid;gap:6px}.ticks li::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-right:10px}
.note{font-size:14px;border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:14px;color:var(--muted)}.note b{color:var(--text)}
.dbtn{display:none}
.tabsbox .seg{padding:12px 16px 0}.tabsbox p{margin-bottom:12px;color:var(--muted)}.tabsbox b{color:var(--text)}
.auth{max-width:420px;margin:0 auto;padding-top:24px}.auth h1{font-size:24px;margin:8px 0 20px}
.auth form{display:grid;gap:14px}.auth .btn{margin-top:4px}
.fld{display:grid;gap:6px;font-size:14px;color:var(--muted)}
.doc{max-width:720px;padding-top:16px}.doc h1{font-size:28px;margin:8px 0 12px}.doc h2{font-size:18px;margin:24px 0 8px}
.doc p,.doc li{color:var(--muted);margin-bottom:8px}.doc ul{padding-left:20px;margin-bottom:8px}.doc a{color:var(--accent)}
.mailrow{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;margin:12px 0;overflow:hidden;background:var(--bg)}
.mailrow input{flex:1;border:0;background:none;border-radius:0}.mailrow input:focus{outline:0}.dom{padding:0 14px;color:var(--muted);font-size:14px;white-space:nowrap}
.mailrow:focus-within{outline:2px solid var(--accent)}
.acts{display:flex;gap:8px}.acts .chip{flex:none}.acts .btn{flex:1}
.card h2{font-size:18px;margin:4px 0}
@media(min-width:768px){
 .dgh{display:flex}.mob{display:none}
 .grid{grid-template-columns:1fr 1fr;gap:16px}.cats{grid-template-columns:repeat(3,1fr)}
 .pd{grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}.buy{position:sticky;top:84px}.dbtn{display:flex}
 .tabsbox{margin-top:24px}
}
@media(min-width:768px) and (max-width:1099px){.dgh{display:none}}
@media(min-width:1100px){.grid{grid-template-columns:repeat(3,1fr)}}
.authbox{display:flex;gap:4px;align-items:center}.authbox[hidden]{display:none}
.err{color:#f87171;font-size:14px}
.plans{display:grid;gap:16px;margin-top:8px}.plan{margin:0;position:relative}.plan .price small{font-size:14px;color:var(--muted);font-weight:400}
.plan .ticks{margin:16px 0 20px}.plan.pro{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.btn.ghost{background:none;color:var(--text);border:1px solid var(--line)}
@media(min-width:768px){.plans{grid-template-columns:1fr 1fr;align-items:stretch}.plan .b{height:100%;display:flex;flex-direction:column}.plan .btn{margin-top:auto}}