:root{--paper:#faf8f0;--ink:#123e39;--muted:#51645e;--green:#eaf0dc;--line:#d6ded2}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 system-ui,-apple-system,sans-serif}main{max-width:1000px;margin:auto;padding:0 30px}a{color:inherit}button,textarea{font:inherit}button,a,textarea{outline-offset:5px}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:26px 0}.brand{font-size:26px;font-weight:800;letter-spacing:-1px;text-decoration:none}.brand span{color:#68844c}.brand small{display:block;font-size:10px;font-weight:400;letter-spacing:2.5px}nav{display:flex;gap:7px}nav button,#reset{border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--ink);padding:7px 12px;font-size:13px}nav button[aria-pressed=true]{background:var(--ink);color:white}.intro{padding:46px 0 30px;max-width:720px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700}h1{font:normal clamp(35px,5vw,54px)/1.13 Georgia,serif;letter-spacing:-1px;margin:18px 0}h2{font-size:20px;line-height:1.4}p{color:var(--muted)}.badge{display:inline-block;border-radius:30px;background:var(--green);padding:6px 12px;font-size:12px}.chat{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 12px 38px #123e3906}.chat-head{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:17px 25px;border-bottom:1px solid var(--line)}.chat-head h2{margin:0}.chat-head h2 span{font-size:13px;font-weight:400;color:var(--muted)}#messages{padding:24px;max-height:570px;overflow:auto;min-height:155px}.message{max-width:90%;padding:17px 20px;border-radius:10px;background:var(--green);margin-bottom:18px}.message.user{margin-left:auto;background:#f2f3ee}.message strong{font-size:12px}.message p{white-space:pre-wrap;margin:6px 0;overflow-wrap:anywhere;font-size:16px}.sources{font-size:12px;border-top:1px solid #cbd6c2;padding-top:12px}.sources a{display:block;overflow-wrap:anywhere;margin-top:6px}.research-note{font-size:11px;color:var(--muted);margin-top:9px}.examples{display:flex;flex-wrap:wrap;gap:8px;padding:0 24px 20px}.examples button{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:20px;padding:7px 13px;font-size:12px}form{border-top:1px solid var(--line);padding:20px 24px}label{display:block;font-size:13px;margin-bottom:8px;font-weight:600}textarea{width:100%;resize:vertical;min-height:84px;max-height:260px;border:1px solid #91a18a;border-radius:6px;padding:12px;color:var(--ink);background:#fff;font-size:16px}.composer-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:10px}#length{font-size:11px;color:var(--muted)}.primary{background:var(--ink);color:#fff;border:0;border-radius:5px;padding:11px 24px}.notice{font-size:12px;line-height:1.65;margin:17px 2px}.human{display:flex;gap:30px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);margin-top:40px;padding:30px 0}.human h2{font:normal 28px/1.25 Georgia,serif}.human p{font-size:14px;max-width:560px}.contact{white-space:nowrap;font-size:14px}details{border-top:1px solid var(--line);padding:20px 0;font-size:13px}summary{cursor:pointer;font-weight:600}footer{border-top:1px solid var(--line);padding:22px 0 35px;display:flex;justify-content:space-between;gap:16px;font-size:12px}@media(max-width:600px){main{padding:0 16px}.brand{font-size:22px}nav{gap:3px}nav button{padding:6px 8px}.intro{padding-top:30px}.chat-head{padding:15px}.chat-head h2 span{display:block}#messages{padding:15px;max-height:60vh}.message{max-width:100%;padding:13px}.examples{padding:0 15px 15px}form{padding:15px}.human,footer{flex-direction:column;align-items:flex-start;gap:10px}}