:root{color-scheme:light dark;--bg: #f7f7f5;--panel: #ffffff;--ink: #1b1b1b;--muted: #6b6b66;--line: #e4e4df;--accent: #2f5bea;--user: #e8eefc;--err: #b3261e}@media(prefers-color-scheme:dark){:root{--bg: #111211;--panel: #1b1c1a;--ink: #ececea;--muted: #9a9a94;--line: #2b2c29;--accent: #7a9cff;--user: #22304f;--err: #ff8a80}}*{box-sizing:border-box}body{margin:0;font:15px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink)}button{font:inherit;padding:8px 14px;border-radius:8px;border:1px solid var(--line);background:var(--accent);color:#fff;cursor:pointer}button:disabled{opacity:.5;cursor:default}button.secondary{background:var(--panel);color:var(--ink)}button.link{background:none;border:none;color:var(--accent);padding:4px 0}input,textarea,select{font:inherit;padding:8px 10px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);width:100%}label{display:block;margin:10px 0}h1{margin:0 0 6px}h2{margin:0 0 8px}h3{margin:22px 0 8px}.muted{color:var(--muted)}.small{font-size:13px}.error{color:var(--err)}.center{min-height:100vh;display:grid;place-items:center;padding:24px}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;max-width:460px;width:100%;margin:10px 0}.layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}aside{border-right:1px solid var(--line);padding:16px 12px;display:flex;flex-direction:column;gap:4px;background:var(--panel)}.brand{font-weight:700;font-size:18px;padding:6px 8px 14px}.nav{text-align:left;background:none;color:var(--ink);border:none;padding:8px;border-radius:8px}.nav.active{background:var(--user)}.nav-head{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:14px 8px 4px}.badge{background:var(--accent);color:#fff;border-radius:10px;padding:0 7px;font-size:12px;margin-left:6px}.spacer{flex:1}main{display:flex;flex-direction:column;min-width:0}.chat{display:flex;flex-direction:column;height:100vh}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:70ch;padding:10px 14px;border-radius:12px;background:var(--panel);border:1px solid var(--line);white-space:pre-wrap}.bubble.user{align-self:flex-end;background:var(--user)}.bubble.pending{opacity:.6}.tag{font-size:12px;color:var(--muted);margin-bottom:4px}.composer{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line);background:var(--panel)}.composer textarea{resize:none}.page{padding:24px;max-width:900px}.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:12px 0}.metric{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px}.big{font-size:22px;font-weight:600}.row{padding:8px 0;border-bottom:1px solid var(--line)}.pill{display:inline-block;font-size:12px;padding:1px 8px;border-radius:999px;background:var(--user);margin-right:6px}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:10px 0}.banner{padding:10px 16px;border-bottom:1px solid var(--line);cursor:pointer}pre{white-space:pre-wrap;font-size:13px;background:var(--bg);padding:10px;border-radius:8px}@media(max-width:720px){.layout{grid-template-columns:1fr}aside{flex-direction:row;flex-wrap:wrap;border-right:none;border-bottom:1px solid var(--line)}.chat{height:auto;min-height:80vh}}