:root{--ink:#08090D;--navy:#0c2140;--panel:#111827;--card:#151b2b;--line:#26304a;--aqua:#B4F2F3;--teal:#2bb3b8;--text:#F7F8FC;--muted:#BFC2CF;--ok:#4ade80;--warn:#fbbf24;--bad:#f87171}*{box-sizing:border-box}body{margin:0;font-family:Manrope,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:linear-gradient(180deg,var(--navy),var(--ink) 420px);color:var(--text);min-height:100vh;display:flex;flex-direction:column}a{color:var(--aqua)}.top{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap;gap:8px}.brand{font-weight:800;font-size:1.15rem;letter-spacing:.2px}.brand b{color:var(--aqua)}.btn,nav button{background:var(--aqua);color:var(--ink);border:0;border-radius:10px;padding:10px 16px;cursor:pointer;font:inherit;font-weight:700}nav button{background:transparent;color:var(--muted);padding:8px 10px}.btn.ghost,nav button.on{color:var(--aqua)}.btn.ghost{background:transparent;border:1px solid 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8px;border-radius:20px;background:var(--line);margin-left:6px}.chat{display:flex;flex-direction:column;gap:8px;max-height:260px;overflow:auto;margin-bottom:8px}.msg{padding:8px 12px;border-radius:12px;font-size:.88rem}.msg.u{background:var(--teal);color:var(--ink);align-self:flex-end}.msg.a{background:#0d1220;border:1px solid var(--line)}.rem li{margin:6px 0;font-size:.9rem}.disc{font-size:.78rem;color:var(--muted);padding:16px 20px;border-top:1px solid var(--line);text-align:center;line-height:1.5}.demo{display:block;margin-top:4px;opacity:.7}.err{color:var(--bad);font-size:.88rem}@media print{body{background:#fff}.bar,.card>:not(.letter),.noprint,.road,.row,aside,footer,header,nav{display:none!important}.card{border:0;padding:0}.letter{max-height:none;padding:0}}.paywall{max-width:560px;margin:40px auto;text-align:center}.price{font-size:2.4rem;font-weight:800;color:var(--aqua);margin:8px 0}.paywall ul{text-align:left;display:inline-block;margin:10px auto 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var(--aqua);outline-offset:2px}.road .lock{opacity:.6}h1:focus{outline:none}a.btn{display:inline-block;text-decoration:none}details.reword{margin-top:12px;border:1px solid var(--line);border-radius:12px;padding:10px 14px}details.reword summary{cursor:pointer;color:var(--aqua);font-weight:700}.sugbox{background:#0d1220;border:1px solid var(--teal);border-radius:10px;padding:10px 12px;margin:8px 0}.letter:focus-visible{outline:3px solid var(--aqua)}