:root{--bg:#0f1115;--panel:#171a21;--agent:#1f2530;--user:#2b5cff;--text:#e7e9ee;--muted:#9aa3b2;--ok:#2ecc71}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.shell{max-width:720px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding:16px}.header{padding:12px 4px}.header h1{font-size:18px;margin:0}.header p{color:var(--muted);margin:4px 0 0;font-size:13px}.messages{flex:1 1;display:flex;flex-direction:column;gap:10px;padding:12px 0;overflow-y:auto}.msg{max-width:80%;padding:10px 14px;border-radius:14px;white-space:pre-wrap;line-height:1.4}.msg.agent{align-self:flex-start;background:var(--agent);border-bottom-left-radius:4px}.msg.user{align-self:flex-end;background:var(--user);border-bottom-right-radius:4px}.composer{display:flex;gap:8px;padding-top:8px}.composer input{flex:1 1;padding:12px 14px;border-radius:10px;border:1px solid #2a2f3a;background:var(--panel);color:var(--text);font-size:15px}.composer button{padding:12px 18px;border-radius:10px;border:0;background:var(--user);color:#fff;font-weight:600;cursor:pointer}.composer button:disabled{opacity:.5;cursor:default}.draft{background:var(--panel);border:1px solid #2a2f3a;border-radius:12px;padding:16px}.draft h2{margin:0 0 8px;font-size:16px;color:var(--ok)}.draft pre{white-space:pre-wrap;word-break:break-word;font-size:13px;color:var(--muted)}.error{color:#ff6b6b;padding:8px 4px;font-size:14px}.consent{background:var(--panel);border:1px solid #2a2f3a;border-radius:12px;padding:20px;margin-top:12px}.consent h2{margin:0 0 8px;font-size:16px}.consent p{color:var(--muted);line-height:1.5;font-size:14px}.consent button{margin-top:12px;padding:12px 18px;border-radius:10px;border:0;background:var(--user);color:#fff;font-weight:600;cursor:pointer}