:root{
  --bg:#f6f7f9; --panel:#ffffff; --ink:#1c2230; --muted:#5b6577;
  --line:#e4e7ec; --accent:#3b4cca; --accent-ink:#fff; --ok:#127a4b; --warn:#9a6700;
  --radius:14px; --shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 22px;
  background:var(--panel);border-bottom:1px solid var(--line)}
.brand{font-weight:700;text-decoration:none;color:var(--ink);letter-spacing:.2px}
.brand span{font-weight:600}
nav{display:flex;align-items:center;gap:14px}
.who{color:var(--muted);font-size:14px}
.inline{display:inline;margin:0}
.link{background:none;border:none;color:var(--accent);cursor:pointer;font-size:14px;padding:0}
.wrap{max-width:780px;margin:32px auto;padding:0 18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px 28px;margin-bottom:22px}
.card.narrow{max-width:440px;margin:8vh auto 0}
h1{font-size:24px;margin:0 0 8px} h2{font-size:18px;margin:0 0 12px}
.lede{color:var(--muted);margin:0 0 20px}
.stack{display:flex;flex-direction:column;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted)}
input,textarea,select{font:inherit;color:var(--ink);background:#fff;border:1px solid var(--line);
  border-radius:10px;padding:11px 12px;width:100%}
textarea{resize:vertical}
.row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.row label{flex:1;min-width:150px}
button.primary{background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;
  padding:11px 18px;font-weight:600;cursor:pointer;white-space:nowrap}
button.primary:hover{filter:brightness(1.06)}
.fine{color:var(--muted);font-size:13px;margin-top:14px}
.ok{color:var(--ok)}
.sessions{list-style:none;padding:0;margin:0}
.sessions li{padding:10px 0;border-bottom:1px solid var(--line)}
.sessions a{color:var(--accent);text-decoration:none}
.back{color:var(--muted);text-decoration:none;font-size:14px}
.qa{margin:20px 0;padding-top:18px;border-top:1px solid var(--line)}
.qa:first-of-type{border-top:none}
.q{font-weight:600;margin-bottom:12px}
.answer p{margin:.6em 0}
.answer h1,.answer h2,.answer h3{font-size:1.05em;margin:1.1em 0 .3em}
.answer ul,.answer ol{margin:.5em 0;padding-left:1.3em}
.answer li{margin:.25em 0}
.answer code{background:#f0f1f5;padding:1px 5px;border-radius:5px;font-size:.92em}
.answer hr{border:none;border-top:1px solid var(--line);margin:1.1em 0}
.answer strong{color:var(--ink)}
.sources{margin-top:12px;font-size:13px;color:var(--muted)}
.sources summary{cursor:pointer;color:var(--accent)}
.conf{margin-top:12px;font-size:13px;color:var(--muted)}
.dissent{margin-top:8px;font-size:13px;color:var(--warn);background:#fff8e6;border:1px solid #f3e2b3;
  border-radius:8px;padding:8px 10px}
.defer{font-size:14px;color:var(--warn);margin-bottom:8px}
.rec{margin-top:10px;font-size:12px;color:var(--muted);font-family:ui-monospace,Menlo,monospace}
.status{background:#fafbff;border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.stages{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 12px;
  font-size:12.5px;color:var(--muted)}
.stage{padding:3px 10px;border:1px solid var(--line);border-radius:999px;background:#fff}
.stage.done{color:var(--accent);border-color:var(--accent);background:#eef0fe}
.thinking{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:14px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--accent);animation:pulse 1.1s infinite ease-in-out}
@keyframes pulse{0%,100%{opacity:.25;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}
.followup{margin-top:24px;border-top:1px dashed var(--line);padding-top:18px}
.foot{text-align:center;color:var(--muted);font-size:12px;padding:24px}