:root{--bg:#fff;--panel:#f6f7f9;--line:#e3e6ea;--text:#16181d;--muted:#6b7280;--brand:#7c3aed;--radius:12px}@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--panel:#171a21;--line:#272c36;--text:#e9ebef;--muted:#9aa1b1}}*{box-sizing:border-box}body,html{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.page{height:100dvh;flex-direction:column}.page,.top{display:flex}.top{align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line)}.top .logo{height:30px;width:auto}.top .wordmark{font-weight:700;font-size:17px;letter-spacing:-.01em}.top .tag{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding-left:12px;border-left:1px solid var(--line)}.chat{flex:1 1;display:flex;flex-direction:column;overflow:hidden}.log{flex:1 1;overflow-y:auto;padding:28px 20px}.log>*{max-width:760px;margin-inline:auto}.empty{text-align:center;padding-top:8vh}.empty h1{font-size:30px;margin:0 0 8px;letter-spacing:-.02em}.empty p{color:var(--muted);margin:0 0 28px}.starters{display:flex;flex-direction:column;gap:10px;align-items:center}.starters button{background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:99px;padding:10px 18px;font:inherit;font-size:15px;cursor:pointer;transition:border-color .15s,transform .15s;max-width:100%}.starters button:hover{border-color:var(--brand);transform:translateY(-1px)}.msg{margin-bottom:24px}.msg .bubble{white-space:pre-wrap}.msg.user{display:flex;justify-content:flex-end}.msg.user .bubble{background:var(--panel);border:1px solid var(--line);padding:10px 15px;border-radius:var(--radius);max-width:85%}.msg.thinking{color:var(--muted);font-style:italic}.cites{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}.cite{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:#fff;text-decoration:none;font-size:13px;font-weight:600;padding:7px 13px;border-radius:99px}.cite:hover{filter:brightness(1.08)}.composer{border-top:1px solid var(--line);padding:14px 20px;background:var(--bg);display:flex;gap:10px;max-width:800px;margin-inline:auto;width:100%}.composer input{flex:1 1;background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:var(--radius);padding:13px 15px;font:inherit}.composer input:focus{outline:2px solid var(--brand);outline-offset:-1px}.composer button{background:var(--brand);color:#fff;border:0;border-radius:var(--radius);padding:0 22px;font:inherit;font-weight:600;cursor:pointer}.composer button:disabled{opacity:.45;cursor:not-allowed}@media (max-width:640px){.empty h1{font-size:24px}.log{padding:20px 14px}.composer{padding:12px 14px}}