:root{color-scheme:dark;--bg:#100f19;--panel:#191827;--line:#39364f;--text:#f7f5ff;--muted:#c5c1d6;--purple:#a78bfa;--blue:#7dd3fc;--gold:#fcd34d;font-size:16px}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 10% 0%,#7c3aed22,transparent 35%),radial-gradient(ellipse at 90% 8%,#0ea5e922,transparent 32%),var(--bg);color:var(--text);font:inherit;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55}body.large{font-size:19px}button,input{font:inherit}button{cursor:pointer;font-weight:750;border-radius:11px;padding:12px 16px;border:1px solid #514c70}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--gold);outline-offset:3px}button:disabled{opacity:.5;cursor:not-allowed}.skip{position:absolute;top:-60px}.skip:focus{top:8px;background:white;color:black;padding:8px}header{display:flex;align-items:center;gap:14px;padding:20px clamp(16px,4vw,50px);border-bottom:1px solid #ffffff18}.logo{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,#7c3aed,#0284c7);display:grid;place-items:center;font-weight:900}.eyebrow{font-size:.73rem;letter-spacing:.12em;font-weight:800;color:#c4b5fd;margin:0 0 4px}header h1{font-size:1.2rem;margin:0}.small{margin-left:auto;background:#25243a;color:white}.hidden{display:none!important}main{width:min(1120px,calc(100% - 30px));margin:28px auto 50px}.panel{background:#191827f2;border:1px solid var(--line);border-radius:18px;padding:clamp(18px,3vw,30px);margin-bottom:14px;box-shadow:0 12px 38px #0002}.hero{padding:clamp(25px,6vw,60px)}h2{line-height:1.12;margin-top:0}.hero h2{font-size:clamp(2.4rem,6vw,4.4rem);letter-spacing:-.04em}.hero h2 span{color:var(--purple)}.hero p:not(.eyebrow),.muted{color:var(--muted)}.actions,.stack{display:grid;gap:10px;max-width:520px;margin:20px 0}.primary{background:linear-gradient(120deg,#7c3aed,#2563eb);color:white;border-color:transparent}.secondary,.small{background:#25243a;color:white}.danger{background:#451d2b;color:#ffe4e6;border-color:#9f334f}.link{background:none;border:0;color:var(--blue);padding-left:0}.panel>label{display:block;font-weight:700;margin:14px 0 5px}input{display:block;width:100%;background:#11101c;color:white;border:1px solid #514c70;border-radius:10px;padding:12px;margin-bottom:12px}.heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:15px}.heading h2{margin:0}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.grid .panel{padding:18px}.grid p{margin-top:0}.code{font-size:clamp(1.3rem,2.5vw,2rem);font-weight:900;letter-spacing:.08em;color:var(--purple);overflow-wrap:anywhere}.gold{color:var(--gold)}.small{font-size:.85rem}.columns{display:grid;grid-template-columns:1fr 1fr;gap:14px}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.pill{border:1px solid #514c70;background:#27243c;border-radius:999px;padding:4px 10px;font-size:.8rem;font-weight:800}.score{margin-left:auto;color:var(--muted)}.score b{font-size:1.3rem;color:var(--gold)}.team{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px;margin-top:9px;border:1px solid #3d3957;border-radius:12px;background:#171624}.team button{padding:7px 10px;font-size:.8rem}.team .approve{background:#164e3b;color:white}.warning{color:var(--gold);font-weight:700}.caseIntro{font-size:1.05rem}.twist{margin:18px 0;padding:15px;border-left:4px solid var(--gold);background:#29253a;border-radius:0 12px 12px 0}.option{display:flex;align-items:flex-start;gap:12px;padding:14px;border:1px solid #514c70;background:#171624;border-radius:12px;margin:10px 0;cursor:pointer}.option:has(input:checked){border-color:var(--purple);background:#25213b}.option input{width:18px;margin:5px 0 0;accent-color:var(--purple)}.option strong{color:var(--purple)}.feedback{margin-top:18px;padding:18px;border:1px solid #4a7c61;background:#14271f;border-radius:14px}.feedback.partial{border-color:#8b6c31;background:#302718}.feedback.zero{border-color:#8d3c4e;background:#301923}.feedback h3{margin-top:0}.points{font-size:1.2rem;font-weight:900;color:var(--gold)}.levelup{margin-top:16px;padding:16px;border:1px solid #5e4b8e;background:#211b38;border-radius:14px}.levelup h3{color:var(--gold);margin-top:0}.center{text-align:center;padding:clamp(28px,6vw,55px)}.leaderboard-row{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid #4a4667;border-radius:12px;background:#1d1b2d;margin:8px 0;text-align:left}.rank{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:#2b2545;color:var(--gold);font-weight:900}.lname{flex:1;font-weight:850}.lscore{color:var(--gold);font-weight:900}.toast{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);width:min(560px,calc(100% - 28px));background:#292640;border:1px solid #69618d;padding:14px 18px;border-radius:12px;z-index:20}footer{text-align:center;color:#9d98b4;font-size:.82rem;padding:12px 15px 28px}@media(max-width:850px){.grid{grid-template-columns:repeat(2,1fr)}.columns{grid-template-columns:1fr}}@media(max-width:550px){.heading{align-items:flex-start;flex-direction:column}.grid{grid-template-columns:1fr}.hero h2{font-size:2.5rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}