:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f8fc;--surface:#fff;--bubble:#e7f0fc;--ink:#1c2333;--muted:#5b6478;--line:#dde3ee;--on-ink:#fff;--primary:#0047b9;--on-primary:#fff;--destructive:#d03238;--focus:#0047b9}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Helvetica,Arial,sans-serif;font-size:18px;line-height:1.5}a{color:var(--primary)}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.page{flex-direction:column;min-height:100vh;display:flex}.topbar{flex-shrink:0;align-items:center;height:72px;padding:0 24px;display:flex}.topbar button.brand{font:inherit;color:var(--ink);cursor:pointer;background:0 0;border:0;min-height:48px;padding:0;font-size:18px;font-weight:600}.home{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:32px;padding:0 16px 96px;display:flex}.home h1{text-align:center;max-width:760px;margin:0;font-size:clamp(28px,5vw,42px);font-weight:600;line-height:1.2}.chips{flex-wrap:wrap;justify-content:center;gap:12px;max-width:900px;display:flex}.chip{border:1px solid var(--line);background:var(--surface);min-height:48px;color:var(--ink);font:inherit;cursor:pointer;border-radius:24px;padding:0 20px;font-size:16px}.chip:hover{border-color:var(--primary)}.note{color:var(--muted);text-align:center;font-size:15px}.search{background:var(--surface);border:1px solid var(--line);border-radius:28px;align-items:center;gap:12px;width:100%;max-width:760px;padding:14px 14px 14px 24px;display:flex;box-shadow:0 1px 2px #0000000d}.search:focus-within{border-color:var(--primary)}.search input{min-width:0;color:var(--ink);font:inherit;background:0 0;border:0;outline:0;flex:1;min-height:52px;font-size:19px}.search input::placeholder{color:var(--muted)}.send{background:var(--primary);width:52px;height:52px;color:var(--on-primary);cursor:pointer;border:0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.send:disabled{opacity:.35;cursor:not-allowed}.results{border-top:1px solid var(--line);flex-direction:column;flex:1;align-items:center;padding:24px 16px;display:flex}.thread{flex-direction:column;flex:1;gap:8px;width:100%;max-width:1040px;display:flex}.asked{background:var(--bubble);border-radius:20px;align-self:flex-end;max-width:620px;padding:16px 22px;font-size:19px}.answer-grid{grid-template-columns:repeat(auto-fit, minmax(280px, min(700px, 1fr)));gap:20px;margin-top:16px;display:grid}.answer{background:var(--surface);border:1px solid var(--line);border-radius:16px;flex-direction:column;gap:12px;padding:24px;display:flex}.answer-head{align-items:center;gap:10px;display:flex}.logo-chip{box-sizing:border-box;background:var(--bg);border:1px solid var(--line);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;padding:4px;display:flex}.logo-chip img{object-fit:contain;max-width:100%;max-height:100%}.answer h2{margin:0;font-size:22px;font-weight:600}.answer .lead{color:var(--muted);margin:0;font-size:16px}.quote{background:var(--bg);border:1px solid var(--line);white-space:pre-wrap;border-radius:12px;margin:0;padding:16px 18px;font-size:17px;line-height:1.55}.source{align-items:center;min-height:48px;font-size:16px;font-weight:600;display:flex}.none{border-top:1px solid var(--line);color:var(--muted);padding:28px 0}.status{color:var(--muted);padding:28px 0}.error{border:1px solid var(--destructive);border-radius:12px;flex-direction:column;align-items:flex-start;gap:12px;padding:20px 22px;display:flex}.retry{background:var(--primary);min-height:48px;color:var(--on-primary);font:inherit;cursor:pointer;border:0;border-radius:12px;padding:0 24px;font-weight:600}.results .search{align-self:center;margin-top:16px;position:sticky;bottom:16px}.guide{border-top:1px solid var(--line);flex-direction:column;gap:8px;padding:24px 0 8px;display:flex}.guide p{margin:0}