@import "https://fonts.googleapis.com/css2?family=Google+Sans+Code:wght@400;500;600&display=swap";
:root{--blue:#1a5cff;--blue-soft:#e8efff;--ink:#0a0a0a;--ink-soft:#3a3a3a;--grey:#6b6b6b;--grey-soft:#b8b8b8;--grey-bg:#f5f5f5;--grey-line:#e5e5e5;--canvas:#fff;--ok:#0a7f4f;--ok-bg:#e6f5ee;--warn:#8a5a00;--warn-bg:#fdf3e0;--max:760px;--r-sm:2px;--t:.15s ease}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ink:#f2f2f2;--ink-soft:#cfcfcf;--grey:#9a9a9a;--grey-soft:#5c5c5c;--grey-bg:#161616;--grey-line:#2a2a2a;--canvas:#0a0a0a;--blue:#6d97ff;--blue-soft:#14203d;--ok:#4ade9b;--ok-bg:#0e2b1f;--warn:#e3b262;--warn-bg:#2c2210}}:root[data-theme=dark]{--ink:#f2f2f2;--ink-soft:#cfcfcf;--grey:#9a9a9a;--grey-soft:#5c5c5c;--grey-bg:#161616;--grey-line:#2a2a2a;--canvas:#0a0a0a;--blue:#6d97ff;--blue-soft:#14203d;--ok:#4ade9b;--ok-bg:#0e2b1f;--warn:#e3b262;--warn-bg:#2c2210}*{box-sizing:border-box}html{-webkit-font-smoothing:antialiased}body{background:var(--canvas);color:var(--ink);margin:0;font-family:Google Sans,Product Sans,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.65}::selection{background:var(--blue);color:#fff}:focus-visible{outline:2px solid var(--blue);outline-offset:2px}code,.mono{font-family:Google Sans Code,ui-monospace,Menlo,monospace}.wrap{max-width:var(--max);margin:0 auto;padding:40px 24px 120px}.bar{z-index:10;background:var(--canvas);border-bottom:1px solid var(--grey-line);position:sticky;top:0}.bar-in{max-width:var(--max);align-items:center;gap:12px;margin:0 auto;padding:12px 24px;display:flex}.mark{color:var(--ink);font-size:15px;font-weight:700;text-decoration:none}.mark .ai{color:var(--blue)}.sp{flex:1}.kicker{letter-spacing:.12em;text-transform:uppercase;color:var(--blue);align-items:center;gap:8px;margin-bottom:8px;font-family:Google Sans Code,monospace;font-size:12px;font-weight:600;display:flex}.kicker:before{content:"";background:var(--blue);width:18px;height:1px}h1{letter-spacing:-.02em;margin:0 0 14px;font-size:clamp(28px,5vw,42px);font-weight:800;line-height:1.1}h2{margin:40px 0 10px;font-size:20px;font-weight:700}p{max-width:62ch;margin:0 0 16px}.lead{color:var(--ink-soft);font-size:18px}.muted{color:var(--grey)}.small{font-size:13.5px}.btn{appearance:none;cursor:pointer;font:inherit;border-radius:var(--r-sm);border:1px solid var(--grey-line);background:var(--canvas);min-height:42px;color:var(--ink);transition:border-color var(--t), background var(--t);padding:10px 16px;font-size:14px;font-weight:600}.btn:hover:not(:disabled){border-color:var(--ink)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn-primary:hover:not(:disabled){background:var(--ink);border-color:var(--ink)}.row{flex-wrap:wrap;gap:8px;margin:18px 0;display:flex}.grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:24px 0;display:grid}.card{border:1px solid var(--grey-line);border-radius:var(--r-sm);padding:14px 16px}.card .n{letter-spacing:-.02em;font-variant-numeric:tabular-nums;font-size:28px;font-weight:800}.card .l{letter-spacing:.14em;text-transform:uppercase;color:var(--grey);font-family:Google Sans Code,monospace;font-size:10px;font-weight:600}.tags{flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex}.tag{letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--grey-line);border-radius:var(--r-sm);color:var(--grey);padding:3px 7px;font-family:Google Sans Code,monospace;font-size:10px;font-weight:600}.tag.hot{background:var(--blue-soft);color:var(--blue);border-color:#0000}.situation{max-width:58ch;margin:0 0 10px;font-size:19px;font-weight:500;line-height:1.5}.constraint{border-left:2px solid var(--blue);background:var(--grey-bg);max-width:58ch;margin:0 0 18px;padding:10px 14px;font-size:14.5px}textarea{width:100%;min-height:200px;font:inherit;border:1px solid var(--grey-line);border-radius:var(--r-sm);background:var(--canvas);color:var(--ink);resize:vertical;padding:16px;line-height:1.7}textarea:focus{outline:2px solid var(--blue);outline-offset:-1px;border-color:#0000}input[type=text]{width:100%;font:inherit;border:1px solid var(--grey-line);border-radius:var(--r-sm);background:var(--canvas);color:var(--ink);padding:10px 12px}.opt{text-align:left;width:100%;font:inherit;cursor:pointer;border:1px solid var(--grey-line);border-radius:var(--r-sm);background:var(--canvas);color:var(--ink);transition:border-color var(--t), background var(--t);margin-bottom:8px;padding:14px 16px;display:block}.opt:hover{border-color:var(--blue)}.opt[aria-pressed=true]{border-color:var(--blue);background:var(--blue-soft)}.opt .idx{color:var(--grey);margin-bottom:4px;font-family:Google Sans Code,monospace;font-size:11px;display:block}.sentence{background:var(--grey-bg);border-left:2px solid var(--warn);-webkit-user-select:text;user-select:text;margin-bottom:16px;padding:18px;font-size:19px;line-height:1.6}.faults{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.fault{cursor:pointer;border:1px solid var(--grey-line);border-radius:var(--r-sm);background:var(--canvas);color:var(--ink);padding:6px 10px;font-family:inherit;font-size:12.5px;font-weight:600}.fault[aria-pressed=true]{background:var(--blue);border-color:var(--blue);color:#fff}.progress{background:var(--grey-line);height:2px;margin-bottom:2px}.progress>div{background:var(--blue);height:100%;transition:width .3s}pre.out{background:var(--grey-bg);border-left:2px solid var(--blue);white-space:pre-wrap;max-height:300px;padding:12px 14px;font-family:Google Sans Code,monospace;font-size:12px;line-height:1.6;overflow:auto}