:root{color-scheme:dark;--bg:#0c0e10;--panel:#141719;--line:#292d2f;--text:#f2ede3;--muted:#9d9b94;--accent:#d8a75f;--danger:#ef7777}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:radial-gradient(circle at 80% -10%,#2b2419 0,transparent 30%),var(--bg);color:var(--text);font-family:ui-serif,Georgia,Cambria,Times New Roman,serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}.shell{max-width:1180px;margin:auto;padding:28px}.nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px}.brand{letter-spacing:.16em;text-transform:uppercase;font:700 14px ui-sans-serif,system-ui}.brand i{color:var(--accent);font-style:normal}.hero{max-width:720px;padding:42px 0}.eyebrow{color:var(--accent);font:600 12px ui-sans-serif,system-ui;letter-spacing:.18em;text-transform:uppercase}.hero h1{font-size:clamp(42px,7vw,82px);line-height:.97;margin:16px 0 22px;font-weight:500}.muted{color:var(--muted);line-height:1.7}.grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.card{background:color-mix(in srgb,var(--panel) 90%,transparent);border:1px solid var(--line);border-radius:18px;padding:22px;min-height:145px;transition:.2s}.card:hover{border-color:#5b4a32;transform:translateY(-2px)}.btn{border:1px solid var(--line);background:var(--text);color:#151515;border-radius:999px;padding:11px 18px;font:650 14px ui-sans-serif,system-ui}.btn.alt{background:transparent;color:var(--text)}.form{max-width:560px;display:grid;grid-gap:14px;gap:14px}.field{display:grid;grid-gap:7px;gap:7px;font:600 13px ui-sans-serif,system-ui}.field input,.field textarea{background:#111416;border:1px solid var(--line);color:var(--text);padding:13px 14px;border-radius:12px;outline:none}.field input:focus,.field textarea:focus{border-color:var(--accent)}.login{min-height:100vh;display:grid;place-items:center;padding:24px}.loginbox{width:min(440px,100%);padding:36px;border:1px solid var(--line);background:#111416dd;border-radius:22px}.loginbox h1{font-size:36px;margin:8px 0}.error{color:var(--danger);font:14px ui-sans-serif,system-ui}.chat{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 56px);border:1px solid var(--line);border-radius:20px;overflow:hidden}.sidebar{background:#111416;padding:18px;border-right:1px solid var(--line)}.thread{display:flex;flex-direction:column}.messages{padding:32px;max-width:820px;width:100%;margin:auto;display:grid;grid-gap:26px;gap:26px}.message{line-height:1.75;font-size:17px;white-space:pre-wrap}.message.user{margin-left:auto;background:#222628;padding:12px 16px;border-radius:16px;max-width:80%}.composer{position:-webkit-sticky;position:sticky;bottom:0;padding:16px 32px 28px;background:linear-gradient(transparent,var(--bg) 25%)}.composer form{max-width:820px;margin:auto;display:flex;gap:10px}.composer textarea{flex:1 1;resize:none;background:#171a1c;border:1px solid var(--line);color:var(--text);border-radius:18px;padding:15px}@media(max-width:760px){.shell{padding:18px}.chat,.grid{grid-template-columns:1fr}.sidebar{display:none}.messages{padding:22px 18px}.hero{padding:22px 0}.composer{padding:12px 14px 20px}}