:root{
  --bg:#F6F7FB; --surface:#FFFFFF; --line:#E1E3EE; --fg:#212244; --muted:#5A5A72;
  --accent:#0C39FF; --accent-soft:#E7ECFF; --on-accent:#FFFFFF;
  --good:#127A4B; --good-soft:#E3F4EB; --bad:#B42318; --bad-soft:#FCE9E7; --warn:#8A5A00; --warn-soft:#FFF2D6;
  --font:"Golos Text", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --r:10px;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#12131F; --surface:#1B1D2D; --line:#2E3047; --fg:#E9EAF4; --muted:#A3A5BD;
  --accent:#7D95FF; --accent-soft:#232A52; --on-accent:#0E1024;
  --good:#5CCB93; --good-soft:#163428; --bad:#FF8A7E; --bad-soft:#3A1C1C; --warn:#F2C065; --warn-soft:#3A2E14;
  color-scheme:dark}}
[hidden]{display:none!important}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);font-size:16px;line-height:1.5}
.wrap{max-width:760px;margin:0 auto;padding-inline:16px;padding-block:24px 64px;display:flex;flex-direction:column;gap:20px}
.wrap.wide{max-width:1100px}
header.top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px}
.brand{font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
h1{font-size:28px;line-height:1.2;margin:4px 0 0;font-weight:700;text-wrap:balance}
h2{font-size:20px;margin:0;font-weight:600;text-wrap:balance}
p{margin:0}
.muted{color:var(--muted)}
.stack{display:flex;flex-direction:column;gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:16px;min-width:0}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.fact{display:flex;flex-direction:column;gap:2px}
.fact b{font-size:22px;font-variant-numeric:tabular-nums}
.fact span{font-size:13px;color:var(--muted)}
.fact.card{padding:16px;gap:2px}
.blocks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;border-top:1px solid var(--line)}
.blocks li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.blocks li span:last-child{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
label.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500}
input[type=text],input[type=password]{font:16px var(--font);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);width:100%;max-width:420px}
.btn{font:600 15px var(--font);border-radius:8px;padding:11px 20px;cursor:pointer;border:1px solid transparent}
.btn.primary{background:var(--accent);color:var(--on-accent)}
.btn.primary:disabled{opacity:.4;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn.small{padding:6px 10px;font-size:13px;font-weight:500}
.btn.danger{background:var(--bad);color:var(--on-accent)}
a.btn{text-decoration:none;display:inline-flex;align-items:center}
td .btn+.btn{margin-left:6px}
.btn:focus-visible,.opt:focus-within,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.row.between{justify-content:space-between}
.chip{display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.03em;padding:3px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent);white-space:nowrap}
.chip.good{background:var(--good-soft);color:var(--good)}
.chip.bad{background:var(--bad-soft);color:var(--bad)}
.chip.warn{background:var(--warn-soft);color:var(--warn)}
.qmeta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.progress{height:6px;background:var(--line);border-radius:999px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--accent);transition:width .2s}
.clock{display:flex;flex-direction:column;gap:6px}
.clock .lbl{display:flex;justify-content:space-between;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.clock .lbl b{color:var(--fg);font-weight:600}
.clock .lbl b.low{color:var(--bad)}
.clock .bar2{height:4px;background:var(--line);border-radius:999px;overflow:hidden}
.clock .bar2 i{display:block;height:100%;background:var(--accent)}
.clock .bar2 i.low{background:var(--bad)}
.qtext{font-size:19px;font-weight:600;line-height:1.4;text-wrap:pretty}
.hint{font-size:13px;color:var(--muted)}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1px solid var(--line);border-radius:8px;cursor:pointer;background:var(--bg)}
.opt input{margin-top:4px;accent-color:var(--accent);flex:none}
.opt:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.score{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 16px}
.score .pct{font-size:48px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.bars{display:flex;flex-direction:column;gap:12px}
.bar{display:grid;grid-template-columns:minmax(0,1fr) 64px;gap:4px 12px;align-items:center;font-size:14px}
.bar .track{grid-column:1 / -1;height:8px;background:var(--line);border-radius:999px;overflow:hidden}
.bar .track i{display:block;height:100%;background:var(--accent)}
.bar .track i.low{background:var(--bad)}
.bar .num{text-align:right;font-variant-numeric:tabular-nums;color:var(--muted)}
.review{display:flex;flex-direction:column;gap:12px}
.ritem{border:1px solid var(--line);border-radius:8px;padding:14px 16px;display:flex;flex-direction:column;gap:8px;background:var(--bg)}
.ritem .q{font-weight:600}
.ans{font-size:14px;display:grid;grid-template-columns:110px minmax(0,1fr);gap:4px 10px;margin:0}
.ans dt{color:var(--muted)}
.ans dd{margin:0}
.expl{font-size:14px;color:var(--muted)}
.src{font-size:12px;color:var(--muted)}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px}
table{border-collapse:collapse;width:100%;font-size:14px;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.03em;text-transform:uppercase;background:var(--surface)}
tr:last-child td{border-bottom:0}
.empty{padding:24px;text-align:center;color:var(--muted);font-size:14px}
.note{font-size:13px;color:var(--muted)}
.err{color:var(--bad)}
.toggle{display:inline-flex;gap:8px;align-items:center;font-size:14px;cursor:pointer}
@media (max-width:560px){
  h1{font-size:23px}.card{padding:18px}.facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .qtext{font-size:17px}.score .pct{font-size:40px}.ans{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){.progress i{transition:none}}