:root{--bg:#f2f5f7;--card:#fff;--ink:#14212b;--muted:#5d6b76;--line:#d9e1e7;--accent:#0b6e5c;--accent-ink:#fff;--night:#101c2b;--danger:#b3261e}@media (prefers-color-scheme:dark){:root{--bg:#0d141b;--card:#16212b;--ink:#e8eef2;--muted:#93a2ae;--line:#263542;--accent:#3fbf9f;--accent-ink:#06231c;--night:#0a1119}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Segoe UI,system-ui,-apple-system,Roboto,sans-serif;line-height:1.5}h1,h2,h3{line-height:1.15;margin:0 0 .5rem}a{color:var(--accent)}.wrap{max-width:760px;margin:0 auto;padding:20px 16px 80px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px}.card h2{font-size:1.15rem}.hint{color:var(--muted);font-size:.88rem;margin:0 0 12px}label{display:block;font-weight:600;font-size:.9rem;margin:12px 0 4px}input,select,textarea{width:100%;padding:10px 12px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px}textarea{min-height:96px;resize:vertical}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:1px}.row{display:flex;gap:12px}.row>*{flex:1 1}.btn,button{display:inline-block;cursor:pointer;border:0;border-radius:10px;padding:11px 18px;font:inherit;font-weight:600;background:var(--accent);color:var(--accent-ink);text-decoration:none}.btn.ghost,button.ghost{color:var(--ink)}.btn.ghost,button.danger,button.ghost{background:transparent;border:1px solid var(--line)}button.danger{color:var(--danger);padding:6px 12px}button:disabled{opacity:.6}.switch{display:flex;align-items:center;gap:10px;margin:12px 0 0;font-weight:600}.switch input{width:20px;height:20px}.status{padding:10px 14px;border-radius:10px;margin-bottom:16px;background:var(--card);border:1px solid var(--accent)}.status.err{border-color:var(--danger)}.topbar{margin-bottom:18px}.chan,.topbar{display:flex;justify-content:space-between;align-items:center}.chan{padding:10px 0;border-top:1px solid var(--line)}.chan:first-of-type{border-top:0}.nightbar{background:var(--night);color:#dbe7f0;border-radius:14px;padding:16px;margin-bottom:16px}.nightbar strong{font-size:1.4rem;letter-spacing:.02em}.msg{padding:8px 0;border-top:1px solid var(--line);font-size:.92rem}.msg small{color:var(--muted)}.hero{padding:56px 0 24px}.hero h1{font-size:clamp(2rem,7vw,3.2rem);max-width:14ch}.hero p{max-width:46ch;color:var(--muted);font-size:1.05rem}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}