:root{color-scheme:light;--ink:#18354a;--muted:#566a76;--blue:#11678c;--blue2:#e5f3f8;--line:#cfdee4;--bg:#f3f7f8;--white:#fff;--good:#187247;--bad:#a63c36;--warn:#885d12}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}a{color:var(--blue)}.wrap{width:min(100% - 32px,860px);margin-inline:auto}.site-head{background:#103a54;color:white}.head-inner{display:flex;justify-content:space-between;align-items:center;padding:24px 0}.eyebrow{margin:0 0 4px;text-transform:uppercase;letter-spacing:.09em;font-size:12px;font-weight:700;color:#bce5f1}h1{font-size:clamp(22px,4vw,32px);line-height:1.2;margin:0}.head-mark{display:grid;place-items:center;border:2px solid #8bc9db;border-radius:50%;width:62px;height:62px;font-weight:800;font-size:23px;flex:none;margin-left:15px}.head-mark span{font-size:11px}main{padding:28px 0 40px;min-height:70vh}footer{border-top:1px solid var(--line);padding-bottom:24px;color:var(--muted);font-size:13px}.panel{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:clamp(18px,4vw,30px);margin:0 0 18px;box-shadow:0 3px 14px #1d46500b}.panel h2{margin:0 0 9px;font-size:22px}.panel h3{margin:0 0 8px;font-size:18px}.muted{color:var(--muted)}.small{font-size:13px}.notice{border-left:4px solid var(--blue);background:var(--blue2);border-radius:8px;padding:12px 14px;margin:14px 0}.notice.warn{border-color:#bc8b34;background:#fff7e4}.notice.error{border-color:var(--bad);background:#fff0ed}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{border:1px solid var(--blue);background:var(--blue);color:white;border-radius:10px;padding:11px 16px;font-weight:700;min-height:44px}.btn.secondary{background:white;color:var(--blue)}.btn.danger{background:white;border-color:var(--bad);color:var(--bad)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mode-card{border:1px solid var(--line);border-radius:14px;padding:18px}.mode-card p{margin:4px 0 16px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{background:#f1f7fa;border-radius:12px;padding:12px}.stat strong{font-size:22px;display:block}.stat span{font-size:12px;color:var(--muted)}.field{display:block;font-weight:700;margin:14px 0 5px}.input{width:100%;border:1px solid #91aab5;border-radius:9px;padding:11px;background:white;color:var(--ink);min-height:44px}.run-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.timer{font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.timer.low{color:var(--bad)}.progress-line{height:7px;background:#dce9ee;border-radius:9px;overflow:hidden;margin:18px 0}.progress-line span{display:block;height:100%;background:var(--blue)}.question-text{font-size:clamp(19px,3vw,25px);font-weight:700;line-height:1.35;margin:22px 0}.option{display:flex;align-items:flex-start;gap:11px;padding:14px;border:1px solid var(--line);border-radius:12px;margin:9px 0;cursor:pointer}.option:has(input:checked){border-color:var(--blue);background:var(--blue2)}.option input{margin-top:5px;flex:none}.option.correct{border-color:var(--good);background:#ebf8f0}.option.wrong{border-color:var(--bad);background:#fff0ed}.pill{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.07em;border-radius:99px;padding:5px 9px;background:var(--blue2);color:var(--blue)}.pill.good{background:#e4f5e9;color:var(--good)}.pill.bad{background:#fff0ed;color:var(--bad)}.score{font-size:42px;font-weight:800;line-height:1.1;margin:8px 0}.review{border-top:1px solid var(--line);padding:15px 0}.review p{margin:4px 0}.review .small{word-break:break-word}.split{display:flex;justify-content:space-between;gap:12px;align-items:center}.save-status{font-weight:700;font-size:13px}.save-status.fail{color:var(--bad)}.save-status.ok{color:var(--good)}.hide{display:none!important}@media(max-width:600px){.grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(3,1fr)}.stat{padding:9px}.stat strong{font-size:18px}.head-mark{display:none}.run-top{align-items:flex-start}.actions .btn{flex:1 1 100%}}