:root{
  --pur:#563A74; --pur2:#7a5b9b; --lil:#A58EB8;
  --tbl-ink:#3B2551; --tbl-line:#6B4E8C; --tbl-head:#D9CBD5;
  --ink:#2b2333; --muted:#6f6480;
  --ok:#2f7d55; --okbg:#eef8f2; --bad:#b2403b; --badbg:#fbf1f0;
}
*{box-sizing:border-box}
body{
  margin:0; color:var(--ink);
  font-family:Montserrat,"Helvetica Neue",Arial,sans-serif; font-size:16px; line-height:1.5;
  background:#cbb8e0 url("/img/bg.jpg") center center / cover no-repeat fixed;
  padding:env(safe-area-inset-top,0) 0 env(safe-area-inset-bottom,0);
}
.wrap{max-width:760px;margin:0 auto;padding:26px 18px 30px;min-height:100vh}
.wrap.wide{max-width:1040px}
.card{background:#fff;border-radius:16px;padding:26px 24px;box-shadow:0 14px 38px rgba(50,28,78,.18)}
.card.start{padding-bottom:20px}
.brand{text-align:center;font-family:"Crimson Text",Georgia,serif;font-size:21px;color:#fff;margin-top:14px;letter-spacing:.3px;text-shadow:0 1px 3px rgba(60,35,90,.25)}
h1{font-size:22px;color:var(--pur);margin:0 0 4px;font-weight:700}
h2{font-size:17px;color:var(--pur);margin:0 0 14px;font-weight:700}
.topic{font-size:17px;color:var(--pur2);font-weight:600;margin-bottom:6px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.step{font-size:13px;font-weight:600;color:var(--pur2)}
.timer{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.bar{height:5px;background:#eee4f2;border-radius:99px;overflow:hidden;margin-bottom:20px}
.bar > i{display:block;height:100%;background:var(--lil);transition:width .25s}
.q{font-size:16px;margin:0 0 16px}
.hint{font-size:13px;color:var(--muted);margin:-8px 0 14px}
img.fig{display:block;max-width:100%;margin:14px auto 18px;border-radius:8px}
img.cat{display:block;margin:18px auto 6px}
img.cat.start{width:250px;margin:16px auto 0}
img.cat.end{width:140px;margin:6px auto 10px}
ol.lst{margin:0 0 16px 0;padding-left:22px;font-size:15px}
ol.lst li{margin-bottom:4px}
table.cond{border-collapse:collapse;width:100%;margin:10px 0 16px;font-size:15px;color:var(--tbl-ink)}
table.cond th{background:var(--tbl-head);color:var(--tbl-ink);text-align:left;font-weight:700}
table.cond th,table.cond td{border:1.5px solid var(--tbl-line);padding:8px 10px}
.opts{display:flex;flex-direction:column;gap:9px;margin-bottom:18px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:11px 13px;border:1.5px solid #e6dcef;border-radius:11px;cursor:pointer;background:#fff;text-align:left;font:inherit;color:inherit}
.opt:hover{border-color:var(--lil)}
.opt.sel{border-color:var(--pur);background:#f6f1fa}
.opt .mark{flex:0 0 24px;height:24px;border-radius:7px;background:#f1ebf6;color:var(--pur);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.opt.sel .mark{background:var(--pur);color:#fff}
.opt.key{border-color:#8cc0a4;background:#f0f9f4;opacity:1}
.opt.miss{border-color:#e3aba7;background:#fdf4f3;opacity:1}
.mrow{display:flex;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid #f0eaf5}
.mrow:last-child{border-bottom:none}
.mrow .lbl{flex:1}
.pick{display:flex;gap:6px;flex-wrap:wrap}
.pick button{width:38px;height:36px;border:1.5px solid #e6dcef;background:#fff;border-radius:9px;font:inherit;font-weight:600;color:var(--pur);cursor:pointer}
.pick button.sel{background:var(--pur);color:#fff;border-color:var(--pur)}
input.answer{width:100%;padding:12px 13px;border:1.5px solid #e6dcef;border-radius:11px;font:inherit;margin-bottom:18px}
input.answer:focus{outline:none;border-color:var(--pur)}
.btn{background:var(--pur);color:#fff;border:none;border-radius:11px;padding:13px 22px;font:inherit;font-weight:600;cursor:pointer}
.btn:disabled{background:#d6cbe2;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--pur);border:1.5px solid var(--lil)}
.btn.small{padding:8px 14px;font-size:14px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.res{border-radius:12px;padding:15px 16px;margin:4px 0 18px;font-size:15px}
.res.ok{background:var(--okbg);border:1px solid #bfe0cd}
.res.bad{background:var(--badbg);border:1px solid #edc9c6}
.res .verdict{font-weight:700;margin-bottom:6px}
.res.ok .verdict{color:var(--ok)}
.res.bad .verdict{color:var(--bad)}
.res .line{font-size:14px;margin:2px 0}
.res .expl{margin-top:10px;padding-top:10px;border-top:1px solid rgba(86,58,116,.15)}
.sum{display:grid;grid-template-columns:1fr auto;gap:6px 14px;margin:0 0 18px;font-size:15px}
.sum .k{color:var(--muted)}
.sum .v{font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.big{font-size:34px;font-weight:700;color:var(--pur);text-align:center;margin:4px 0 2px}
.bigsub{text-align:center;color:var(--muted);font-size:14px;margin-bottom:20px}
.note{font-size:13px;color:var(--muted);margin-top:14px}
.err{color:var(--bad);font-size:14px;margin:8px 0}
table.data{width:100%;border-collapse:collapse;font-size:14px}
table.data th{text-align:left;color:var(--pur);border-bottom:2px solid var(--tbl-head);padding:8px 10px;font-weight:700;white-space:nowrap}
table.data td{border-bottom:1px solid #f0eaf5;padding:8px 10px;vertical-align:top}
table.data tr:hover td{background:#faf7fd}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:600}
.pill.done{background:var(--okbg);color:var(--ok)}
.pill.going{background:#f3ecf8;color:var(--pur2)}
.tests{font-size:14px;color:var(--muted);margin-bottom:18px}
.tests code{background:#f4eff8;padding:2px 6px;border-radius:6px;color:var(--pur);font-size:13px}
[hidden]{display:none!important}
@media (max-width:480px){
  .card{padding:20px 16px}.big{font-size:29px}
  img.cat.start{width:200px}.wrap{padding:18px 12px 24px}
  table.data{font-size:13px}table.data th,table.data td{padding:7px 6px}
}