:root{--ink:#143d33;--text:#22302c;--body:#3d4c47;--muted:#4a5a55;--sign:#0f6b4f;--sign-hover:#0b5640;--mint:#eef5f1;--line:#e2ebe7;--white:#ffffff;--danger:#b91c1c;--danger-soft:#fef2f2;--stage:#10332b;--stage-raised:rgba(243,239,228,0.1);--stage-line:rgba(243,239,228,0.3);--gold:#e7b53a;--cream:#f3efe4;--right:#16a34a;--wrong:#dc2626;--right-soft:#86efac;--wrong-soft:#fca5a5;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color-scheme:light}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--white);color:var(--text);font:17px/1.55 var(--sans)}a{color:var(--sign)}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}:focus-visible{outline:3px solid var(--gold);outline-offset:2px}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:var(--white);padding:8px 12px;z-index:100}.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line)}.top__brand{font-weight:800;color:var(--ink);text-decoration:none}.top__brand span{color:var(--sign)}.top form{margin:0}.page{max-width:760px;margin:0 auto;padding:28px 20px 64px}.page--narrow{max-width:460px}h1{font-size:30px;line-height:1.2;margin:0 0 8px}h1,h2{color:var(--ink)}h2{font-size:20px;margin:28px 0 10px}.lead{color:var(--body);margin:0 0 20px}.hint{color:var(--muted);font-size:15px}.card{border:1px solid var(--line);border-radius:14px;padding:18px;margin:12px 0;background:var(--white)}.card--mint{background:var(--mint);border-color:transparent}.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.button{display:inline-block;border:0;border-radius:10px;padding:11px 18px;background:var(--sign);color:var(--white);font-weight:700;text-decoration:none}.button:hover:not(:disabled){background:var(--sign-hover)}.button--quiet{background:transparent;color:var(--sign);border:1px solid var(--line)}.button--quiet:hover:not(:disabled){background:var(--mint)}.button--block{display:block;width:100%;text-align:center}.field{display:grid;grid-gap:6px;gap:6px;margin:12px 0}.field label{font-weight:700;color:var(--ink);font-size:15px}.field input{border:1px solid var(--dash,#9db3ab);border-radius:10px;padding:11px 12px;width:100%}.notice{border-radius:10px;padding:10px 14px;margin:12px 0;background:var(--mint);color:var(--ink)}.notice--error{background:var(--danger-soft);color:var(--danger)}.game-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));grid-gap:12px;gap:12px}.game-tile{text-align:left;border:1px solid var(--line);border-radius:14px;padding:16px;background:var(--white);color:var(--text)}.game-tile:hover:not(:disabled){border-color:var(--sign);background:var(--mint)}.game-tile strong{display:block;color:var(--ink);font-size:18px}.toggle{display:flex;gap:10px;align-items:flex-start}.toggle input{width:20px;height:20px;margin-top:3px}.stage{min-height:100vh;background:var(--stage);color:var(--cream);padding:16px}.stage--center{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.stage a{color:var(--gold);font-weight:800}.stage-button{border:0;border-radius:14px;padding:14px 28px;background:var(--gold);color:var(--stage);font-weight:900;font-size:18px}.stage-button--quiet{background:transparent;color:var(--cream);border:1px solid var(--stage-line);font-weight:700}.stage-input{display:block;width:100%;margin-top:4px;text-align:center;font-size:22px;font-weight:800;padding:14px 10px;border-radius:14px;border:0;color:var(--stage)}.chip{display:inline-flex;align-items:center;gap:6px;background:rgba(243,239,228,.15);font-weight:700;padding:6px 8px 6px 14px;border-radius:999px}.chip button{background:rgba(243,239,228,.18);color:var(--cream);border:0;border-radius:999px;width:24px;height:24px;font-size:12px;line-height:24px;padding:0}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.03)}}.double{margin:0 auto 12px;max-width:560px;text-align:center;background:linear-gradient(90deg,#f59e0b,#fbbf24,#f59e0b);color:#3a2a00;font-weight:900;letter-spacing:1px;padding:8px 14px;border-radius:999px;animation:pulse .9s ease-in-out infinite}@media (prefers-reduced-motion:reduce){.double{animation:none}}