:root{--navy:#142a66;--navy-deep:#0e1f4d;--red:#ed2e26;--red-deep:#c7211b;--white:#fff;--surface:#f5f6f8;--line:#e3e6ed;--muted:#5b6586;--ink:#1b2340;--ok:#0e8a5f;--shadow:0 24px 60px -24px #142a6673}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{color:var(--ink);background:var(--surface);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,sans-serif;line-height:1.5}.mono{font-family:JetBrains Mono,monospace}h1,h2,h3,.display{letter-spacing:-.02em;font-family:Space Grotesk,sans-serif}.screen{min-height:100vh;display:none}.screen.active{display:block}@media (prefers-reduced-motion:no-preference){.screen.active{animation:.45s fade}@keyframes fade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}}#gate{background:radial-gradient(1200px 600px at 80% -10%, #ed2e262e, transparent 55%), radial-gradient(900px 700px at -10% 110%, #ffffff0f, transparent 50%), linear-gradient(180deg,var(--navy),var(--navy-deep));place-items:center;min-height:100vh;padding:32px 20px;display:grid}.gate-card{background:var(--white);width:100%;max-width:430px;box-shadow:var(--shadow);border-radius:22px;padding:40px 36px 30px}.gate-mark{width:62px;height:auto;margin:0 auto 22px;display:block}.eyebrow{text-align:center;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin-bottom:8px;font-size:11px;font-weight:600}.gate-card h1{text-align:center;color:var(--navy);font-size:26px;font-weight:700}.gate-sub{text-align:center;color:var(--muted);margin:8px 0 28px;font-size:14px}.field{margin-bottom:16px}.field label{color:var(--navy);text-align:left;margin-bottom:6px;font-size:12.5px;font-weight:600;display:block}.field input{border:1.5px solid var(--line);width:100%;color:var(--ink);background:#fbfcfd;border-radius:11px;padding:13px 14px;font-family:inherit;font-size:15px;transition:border-color .15s,box-shadow 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0}.btn-ghost:hover{border-color:var(--navy)}.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy-deep)}.gate-foot{text-align:center;color:#9aa2bc;margin-top:22px;font-size:11.5px;line-height:1.6}.topbar{z-index:20;background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0}.topbar-inner{align-items:center;gap:14px;max-width:760px;margin:0 auto;padding:12px 20px;display:flex}.tb-mark{flex:none;width:30px;height:auto}.tb-title{color:var(--navy);font-family:Space Grotesk;font-size:15px;font-weight:600;line-height:1.2}.tb-title small{color:var(--muted);font-family:Inter;font-size:11.5px;font-weight:450;display:block}.tb-spacer{flex:1}.timer{color:var(--navy);background:var(--surface);border:1px solid var(--line);white-space:nowrap;border-radius:999px;align-items:center;gap:7px;padding:6px 14px;font-family:JetBrains Mono;font-size:15px;font-weight:700;display:flex}.timer.warn{color:var(--red);background:#fdeceb;border-color:#f6c9c6;animation:1s infinite pulse}@keyframes pulse{50%{opacity:.55}}.timer .dot{background:currentColor;border-radius:50%;width:7px;height:7px}.progress-rail{background:var(--line);height:3px}.progress-fill{background:var(--red);width:0;height:100%;transition:width .35s}.wrap{max-width:760px;margin:0 auto;padding:30px 20px 48px}.brief h1{color:var(--navy);margin-bottom:6px;font-size:30px}.brief .lede{color:var(--muted);max-width:52ch;margin-bottom:26px;font-size:15px}.meta-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px;margin-bottom:26px;display:grid}.meta{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px}.meta .k{letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-size:11px;font-weight:600}.meta .v{color:var(--navy);margin-top:4px;font-family:Space Grotesk;font-size:22px;font-weight:600}.rules{background:var(--white);border:1px solid var(--line);border-radius:14px;margin-bottom:26px;padding:20px 22px}.rules h3{text-transform:uppercase;letter-spacing:.08em;color:var(--navy);margin-bottom:12px;font-size:13px}.rules ul{list-style:none}.rules li{color:var(--ink);align-items:flex-start;gap:11px;padding:7px 0;font-size:14px;display:flex}.rules li svg{flex:none;margin-top:2px}.qsection{color:var(--brand);opacity:.9;text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;font-size:13px;font-weight:700}.qcount{letter-spacing:.08em;text-transform:uppercase;color:var(--red);margin-bottom:10px;font-size:12px;font-weight:600}.qtext{color:var(--navy);-webkit-user-select:none;user-select:none;margin-bottom:22px;font-family:Space Grotesk;font-size:21px;font-weight:600;line-height:1.35}.opt{text-align:left;cursor:pointer;-webkit-user-select:none;user-select:none;background:var(--white);border:1.5px solid var(--line);width:100%;color:var(--ink);border-radius:13px;align-items:center;gap:14px;margin-bottom:11px;padding:15px 16px;font-family:inherit;font-size:15px;transition:border-color .12s,background .12s;display:flex}.opt:hover{border-color:#b9c0d6}.opt .key{background:var(--surface);border:1px solid var(--line);width:28px;height:28px;color:var(--muted);border-radius:8px;flex:none;place-items:center;font-family:JetBrains Mono;font-size:13px;font-weight:700;transition:all .12s;display:grid}.opt.sel{border-color:var(--navy);background:#142a660a}.opt.sel .key{background:var(--navy);border-color:var(--navy);color:#fff}.opt:focus-visible{border-color:var(--navy);outline:none;box-shadow:0 0 0 4px #142a661f}.exam-nav{gap:12px;margin-top:24px;display:flex}.exam-nav .btn{flex:1;width:auto;padding:13px 18px}.palette{border-top:1px solid var(--line);flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:22px;display:flex}.palette .plabel{text-transform:uppercase;letter-spacing:.1em;color:var(--muted);flex-basis:100%;margin-bottom:4px;font-size:11px;font-weight:600}.pcell{border:1.5px solid var(--line);width:38px;height:38px;color:var(--muted);cursor:pointer;background:#fff;border-radius:9px;font-family:JetBrains Mono;font-size:13px;font-weight:700;transition:all .12s}.pcell.done{background:var(--navy);border-color:var(--navy);color:#fff}.pcell.cur{border-color:var(--red);color:var(--red);box-shadow:0 0 0 3px #ed2e262e}.pcell.cur.done{color:#fff}.review h1{color:var(--navy);margin-bottom:6px;font-size:28px}.review .lede{color:var(--muted);margin-bottom:24px;font-size:14.5px}.rev-summary{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px;display:grid}.warnbox{color:var(--red-deep);background:#fdeceb;border:1px solid #f6c9c6;border-radius:12px;margin-bottom:22px;padding:14px 16px;font-size:14px;display:none}.warnbox.show{display:block}#result{text-align:center}.result-inner{max-width:520px;margin:0 auto;padding:50px 20px 60px}.seal{width:200px;height:200px;margin:0 auto 6px;position:relative}.seal svg{transform:rotate(-90deg)}.seal .center{place-content:center;display:grid;position:absolute;inset:0}.seal .pct{color:var(--navy);font-family:Space Grotesk;font-size:48px;font-weight:700;line-height:1}.seal .pct span{color:var(--muted);font-size:24px}.seal .pmark{text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-top:2px;font-size:12px;font-weight:600}.verdict{border-radius:999px;align-items:center;gap:9px;margin:18px 0 6px;padding:9px 20px;font-family:Space Grotesk;font-size:15px;font-weight:600;display:inline-flex}.verdict.pass{color:var(--ok);background:#0e8a5f1f}.verdict.fail{color:var(--red-deep);background:#fdeceb}#result h1{color:var(--navy);margin-top:14px;font-size:27px}#result .who{color:var(--muted);margin-top:6px;font-size:14px}.stats{grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0 28px;display:grid}.stat{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px 10px}.stat .v{color:var(--navy);font-family:Space Grotesk;font-size:24px;font-weight:600}.stat .k{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-top:3px;font-size:11px;font-weight:600}.result-inner .btn{max-width:280px;margin:0 auto}.animate-spin{animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.inline{vertical-align:middle;display:inline-block}.mr-2{margin-right:8px}@media (width<=560px){.gate-card{padding:32px 24px 26px}.meta-grid{grid-template-columns:1fr 1fr}.tb-title small{display:none}.qtext{font-size:19px}}