:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1e222b;--line:#2a2f3a;--text:#e6e8ee;--muted:#939aab;--accent:#4f7cff;--danger:#ef4444;--ok:#22c55e}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Malgun Gothic,Apple SD Gothic Neo,sans-serif;-webkit-font-smoothing:antialiased}.wrap{max-width:720px;margin:0 auto;padding:48px 20px 80px}.wrap-wide{max-width:1100px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px}h1{font-size:22px;margin:0 0 6px;letter-spacing:-.02em}h2{font-size:16px;margin:28px 0 12px}p{line-height:1.65;margin:0 0 12px}label,p{color:var(--muted)}label{display:block;font-size:13px;margin-bottom:6px}input[type=email],input[type=password],input[type=text],textarea{width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;color:var(--text);padding:12px 14px;font-size:15px;font-family:inherit}input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}textarea{resize:vertical;line-height:1.6}button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:12px 18px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button.ghost{background:transparent;border:1px solid var(--line);color:var(--muted)}button.small{padding:6px 10px;font-size:12px}a,button.linklike{color:var(--accent)}button.linklike{background:none;border:0;padding:0;font-size:13px;font-weight:400;text-decoration:underline;cursor:pointer}.tabs{display:flex;gap:8px;margin-bottom:20px}.tabs>button{background:transparent;border:1px solid var(--line);color:var(--muted);padding:9px 16px;font-size:14px}.tabs>button.on{background:var(--accent);border-color:var(--accent);color:#fff}.err{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.4);color:#fca5a5;padding:12px 14px;border-radius:8px;margin:14px 0 0}.err,.notice{font-size:14px}.notice{background:rgba(79,124,255,.1);border:1px solid rgba(79,124,255,.35);border-radius:10px;padding:16px 18px;margin:18px 0 4px;line-height:1.7;color:var(--muted)}.notice b{color:var(--text);font-size:15px}.rule{color:var(--muted);font-size:14px;line-height:1.9;padding-left:18px;margin:0}.rule li::marker{color:var(--accent)}.bar{height:4px;background:var(--panel-2);border-radius:999px;overflow:hidden;margin-bottom:8px}.bar>i{display:block;height:100%;background:var(--accent);transition:width .25s}.timer{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;letter-spacing:-.03em}.timer.warn{color:var(--danger)}.meta{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:20px}.sec{font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.prompt{font-size:19px;line-height:1.55;margin:0 0 20px;color:var(--text);font-weight:500}pre.code{background:#0b0d12;border:1px solid var(--line);border-radius:8px;padding:14px 16px;overflow-x:auto;font-size:14px;margin:0 0 20px}.choices{display:grid;grid-gap:10px;gap:10px}.choice{display:flex;gap:12px;align-items:flex-start;text-align:left;background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:14px 16px;font-size:15px;font-weight:400;line-height:1.5;transition:border-color .12s,background .12s}.choice.picked,.choice:hover:not(:disabled){border-color:var(--accent)}.choice.picked{background:rgba(79,124,255,.12)}.choice>b{flex:none;width:22px;height:22px;border-radius:6px;background:var(--line);display:grid;place-items:center;font-size:12px}.choice.picked>b{background:var(--accent)}table{width:100%;border-collapse:collapse;font-size:14px}td,th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:500;font-size:12px}.tag{display:inline-block;padding:3px 8px;border-radius:999px;font-size:11px;font-weight:600}.tag.invited{background:#33384a;color:#b6bdd0}.tag.in_progress{background:rgba(79,124,255,.18);color:#93b0ff}.tag.submitted{background:rgba(34,197,94,.15);color:#7ee2a8}.tag.disqualified{background:rgba(239,68,68,.15);color:#fca5a5}.table-scroll{overflow-x:auto}