:root{
  --bg:#faf8f3;--card:#ffffff;--text:#0d1f33;--muted:#5b6475;--accent:#0d1f33;--accent-text:#ffffff;
  --gold:#fbbc1a;--good:#f5b400;--border:#ebe6da;--shade:rgba(13,31,51,.25);--hover:#fff5d6;--radius:14px;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0b1524;--card:#13213a;--text:#eef0f8;--muted:#9aa6bd;--accent:#fbbc1a;--accent-text:#0d1f33;
    --gold:#fbbc1a;--good:#fbbc1a;--border:#22314d;--shade:rgba(238,240,248,.3);--hover:#1d2d4a}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:20px 16px 48px}
header.top{display:flex;align-items:center;gap:10px;padding:8px 0 20px;font-weight:700;font-size:20px}
header.top a{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none}
header.top img.brand{display:block;height:58px;width:auto}
@media (max-width:520px){header.top img.brand{height:48px}}
header.top .logo{width:34px;height:34px;border-radius:10px;background:var(--accent);display:grid;place-items:center;color:#fff;font-size:14px;letter-spacing:-.02em}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px}
h1{font-size:clamp(26px,5vw,36px);line-height:1.15;margin:0 0 10px}
h2{font-size:20px;margin:0 0 10px}
p{margin:0 0 12px}
.muted{color:var(--muted)}
.small{font-size:13px}
.btn{appearance:none;border:0;border-radius:12px;padding:13px 22px;font:inherit;font-weight:600;cursor:pointer;background:var(--accent);color:var(--accent-text)}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.facts div{background:var(--bg);border-radius:12px;padding:12px;text-align:center}
.facts b{display:block;font-size:22px}
.hidden{display:none!important}
.bar{height:8px;background:var(--border);border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--gold);border-radius:99px;transition:width .25s}
.qhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:14px;color:var(--muted)}
.timer{font-variant-numeric:tabular-nums;font-weight:700;color:var(--text)}
.timer.low{color:#e5484d}
.cat{display:inline-block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:16px 0 4px}
.prompt{font-size:20px;font-weight:600;margin:0 0 14px}
.series{font-size:28px;font-weight:700;letter-spacing:.02em;margin:6px 0 18px;word-spacing:.15em}
.mgrid{display:grid;grid-template-columns:repeat(3,92px);gap:6px;justify-content:center;margin:6px 0 18px}
.mgrid .cell{width:92px;height:92px;border:1px solid var(--border);border-radius:10px;display:grid;place-items:center;background:var(--bg)}
.mgrid .cell.q{font-size:34px;font-weight:700;color:var(--accent);border:2px dashed var(--accent)}
.mgrid svg,.opt svg{width:100%;height:100%;display:block}
.opts{display:grid;gap:10px}
.opts.grid{grid-template-columns:repeat(3,1fr)}
.opt{display:flex;align-items:center;gap:12px;text-align:left;width:100%;background:var(--card);color:var(--text);border:2px solid var(--border);border-radius:12px;padding:12px 14px;font:inherit;cursor:pointer}
.opt:hover{background:var(--hover)}
.opt.sel{border-color:var(--accent);background:var(--hover)}
.opt .k{flex:none;width:26px;height:26px;border-radius:8px;background:var(--bg);display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--muted)}
.opt.sel .k{background:var(--accent);color:var(--accent-text)}
.opts.grid .opt{flex-direction:column;padding:8px;gap:6px}
.opts.grid .opt .pic{width:84px;height:84px}
.nav{display:flex;justify-content:space-between;gap:10px;margin-top:20px}
.score{text-align:center;padding:10px 0 6px}
.score .num{font-size:84px;font-weight:800;line-height:1;color:var(--accent)}
.score .tier{font-size:20px;font-weight:700;margin-top:6px}
.cats{display:grid;gap:12px;margin:20px 0}
.cats .row{display:grid;grid-template-columns:130px 1fr 44px;gap:10px;align-items:center;font-size:14px}
.cats .bar>i{background:var(--good)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
details{border-top:1px solid var(--border);padding:12px 0}
details:first-of-type{border-top:0}
summary{cursor:pointer;font-weight:600}
footer{text-align:center;color:var(--muted);font-size:13px;margin-top:24px}
footer a{color:inherit}
.chbanner{background:var(--hover);border:1px solid var(--accent);border-radius:12px;padding:12px 14px;margin:0 0 16px;font-weight:600}
.vs{font-weight:700;margin:10px 0 0}
.scorecard{display:block;width:100%;max-width:360px;margin:6px auto 14px;border-radius:12px;border:1px solid var(--border)}
.sharebtns{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}
.sbtn{display:flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 14px;font:inherit;font-weight:600;font-size:15px;cursor:pointer;text-decoration:none;border:1px solid var(--border);background:var(--card);color:var(--text)}
.sbtn:hover{background:var(--hover)}
.sbtn.wa{background:#25d366;border-color:#25d366;color:#fff}
.sbtn.x{background:#000;border-color:#000;color:#fff}
.sbtn.fb{background:#1877f2;border-color:#1877f2;color:#fff}
.sbtn.wa:hover,.sbtn.x:hover,.sbtn.fb:hover{filter:brightness(1.08)}
@media (prefers-color-scheme:dark){.sbtn.x{border-color:#444}}
.rv{border-top:1px solid var(--border);padding:14px 0}
.rv:first-child{border-top:0}
.rv .rvh{display:flex;gap:8px;align-items:baseline;font-size:13px;color:var(--muted);margin-bottom:4px}
.rv .mark{font-weight:800;font-size:15px}.rv .ok{color:#12a36b}.rv .no{color:#e5484d}.rv .skip{color:var(--muted)}
.rv .rvq{font-weight:600;margin:0 0 6px}
.rv .rvbody .series{font-size:20px;margin:4px 0 8px}
.rv .rvbody .mgrid{grid-template-columns:repeat(3,54px);justify-content:start;margin:4px 0 8px}
.rv .rvbody .mgrid .cell{width:54px!important;height:54px!important;font-size:20px}
.rv .rva svg{width:100%;height:100%;display:block}
.rv .rva{font-size:14px;margin:0 0 4px}
.rv .rva .pic{display:inline-block;width:44px;height:44px;vertical-align:middle}
.rv .why{font-size:14px;color:var(--muted);margin:0;background:var(--bg);border-radius:10px;padding:8px 10px}
#review summary{font-size:18px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--text);color:var(--bg);padding:10px 16px;border-radius:10px;font-size:14px}
@media (max-width:520px){
  .card{padding:18px}
  .mgrid{grid-template-columns:repeat(3,78px)}.mgrid .cell{width:78px;height:78px}
  .opts.grid{grid-template-columns:repeat(2,1fr)}
  .cats .row{grid-template-columns:100px 1fr 40px}
  .score .num{font-size:68px}
}
/* menu */
header.top{justify-content:space-between;flex-wrap:wrap;gap:8px 16px}
nav.menu{display:flex;gap:4px;font-size:15px;font-weight:600}
nav.menu a{color:var(--muted);text-decoration:none;padding:7px 10px;border-radius:10px}
nav.menu a:hover{background:var(--hover);color:var(--text)}
nav.menu a.on{color:var(--text);background:var(--card);border:1px solid var(--border)}
@media (max-width:520px){nav.menu{font-size:14px}nav.menu a{padding:6px 8px}}
/* article pages */
.article h1{margin-bottom:6px}.article h2{font-size:21px;margin:26px 0 8px}
.article ul{padding-left:20px;margin:0 0 12px}.article li{margin:0 0 6px}
.article a{color:inherit;font-weight:600}
table.iq{width:100%;border-collapse:collapse;margin:8px 0 14px;font-size:15px}
table.iq th,table.iq td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--border)}
table.iq th{font-size:13px;color:var(--muted);font-weight:600}
.cta{background:var(--hover);border-radius:12px;padding:16px;margin:18px 0}
.sources{font-size:13px;color:var(--muted)}.sources a{font-weight:400}