:root{--bg:#0d0f12;--panel:#14171cdb;--line:#ffffff1a;--text:#eef1f4;--muted:#9aa3ad;--accent:#ff3b2f;--accent-2:#f0c020;--ok:#2bff6a;--radius:16px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%;color:var(--text);-webkit-font-smoothing:antialiased;background:radial-gradient(at 50% 35%,#2a2f37 0%,#15181d 55%,#0a0b0d 100%);margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}#stage{touch-action:none;position:fixed;inset:0}#stage canvas{display:block}button,.button,select,input{font:inherit}button,.button{cursor:pointer;text-align:center;border:0;border-radius:12px;padding:12px 18px;font-weight:700;text-decoration:none;transition:transform 80ms,background .2s,box-shadow .2s}button:active,.button:active{transform:translateY(1px)scale(.99)}.primary{color:#fff;background:linear-gradient(#ff5a43,#d92b1f);box-shadow:0 6px 20px #ff3b2f59,inset 0 1px #ffffff40}.primary:hover{box-shadow:0 8px 28px #ff3b2f80,inset 0 1px #ffffff40}.secondary{color:var(--text);border:1px solid var(--line);background:#2a3038}.secondary:hover{background:#343b45}.ghost{color:var(--text);border:1px solid var(--line);background:#ffffff0f;padding:8px 12px;font-weight:600}.ghost:hover{background:#ffffff1f}.overlay{-webkit-backdrop-filter:blur(6px);z-index:10;background:#0607098c;place-items:center;padding:16px;display:grid;position:fixed;inset:0;overflow-y:auto}.overlay[hidden]{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:22px;width:min(520px,100%);padding:26px;box-shadow:0 30px 80px #00000080}.brand{align-items:center;gap:14px;margin-bottom:14px;display:flex}.logo{filter:drop-shadow(0 6px 12px #00000080);flex:none;width:64px;height:64px}h1{letter-spacing:.01em;background:linear-gradient(#fff,#b9c0c8);color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:40px;font-weight:800;line-height:1}h1 em{color:var(--accent);-webkit-text-fill-color:var(--accent);font-style:normal}.tagline{color:var(--muted);margin:6px 0 0;font-size:14px}.rules{color:#cfd5db;border-left:3px solid var(--accent-2);background:#f0c0200f;border-radius:0 10px 10px 0;margin:0 0 18px;padding:12px 14px;font-size:14px;line-height:1.5}.field{color:var(--muted);gap:6px;margin:14px 0;font-size:13px;font-weight:600;display:grid}.field small{font-size:12px;font-weight:400}.field input,.field select{color:var(--text);border:1px solid var(--line);background:#0f1216;border-radius:10px;padding:10px 12px;font-size:16px}.field input{letter-spacing:.12em;text-transform:uppercase;font-family:JetBrains Mono,monospace}.lang-field{grid-template-columns:auto 1fr;align-items:center;gap:12px}.difficulty{border:0;margin:14px 0;padding:0}.difficulty legend{color:var(--muted);margin-bottom:8px;font-size:13px;font-weight:600}.diff-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.diff{border:1px solid var(--line);cursor:pointer;background:#14181d;border-radius:12px;gap:4px;padding:12px;transition:border-color .2s,background .2s;display:grid;position:relative}.diff input{opacity:0;pointer-events:none;position:absolute}.diff strong{font-size:15px}.diff span{color:var(--muted);font-family:JetBrains Mono,monospace;font-size:12px}.diff em{color:var(--accent-2);font-size:11px;font-style:normal}.diff.selected{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:#ff3b2f1a}.actions{gap:10px;margin-top:18px;display:flex}.actions>*{flex:1}.actions.column{flex-direction:column}.qr-card{text-align:center}.qr-card h2{margin:0 0 6px}.qr-card p{color:#cfd5db;margin:0 0 16px}.qr-code{background:#fff;border-radius:14px;width:min(260px,70vw);margin:0 auto;padding:10px}.qr-code svg{width:100%;height:auto;display:block}.qr-url{color:var(--accent-2);word-break:break-all;margin-top:10px;font-family:JetBrains Mono,monospace;font-size:13px;display:block}.qr-card small{color:var(--muted);margin-top:8px;display:block}.end-card{text-align:center}.end-card h2{color:var(--ok);letter-spacing:.04em;text-shadow:0 0 30px #2bff6a66;margin:0 0 8px;font-size:48px}.end-card p{color:#cfd5db;margin:0 0 8px;font-size:16px}#end.lose .end-card h2{color:var(--accent);text-shadow:0 0 40px #ff3b2f99;font-size:64px}#end.lose{background:#1e0604b3}#hud{pointer-events:none;z-index:5;position:fixed;inset:0}#hud[hidden]{display:none}.hud-left,.hud-right{top:max(12px, env(safe-area-inset-top));pointer-events:auto;gap:8px;display:flex;position:absolute}.hud-left{left:16px}.hud-right{right:16px}.chip{border:1px solid var(--line);color:var(--muted);background:#00000073;border-radius:999px;padding:8px 12px;font-size:13px}.chip b{color:var(--text);letter-spacing:.06em;font-family:JetBrains Mono,monospace}.hud-help{bottom:max(12px, env(safe-area-inset-bottom));color:var(--muted);white-space:nowrap;text-overflow:ellipsis;background:#0006;border-radius:999px;max-width:calc(100% - 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