:root{color:#0f172a;background:#f8fafc;font-family:Segoe UI,system-ui,sans-serif}body{margin:0}.app-shell{max-width:960px;margin:0 auto;padding:2rem 1rem 3rem}.chat-panel header h1{margin:0 0 .25rem}.messages{display:grid;gap:1rem;margin:1.5rem 0}.message{padding:1rem;border-radius:12px;background:#fff;border:1px solid #e2e8f0}.message.user{border-color:#bfdbfe}.message pre{white-space:pre-wrap;margin:.5rem 0 0;font-family:inherit}.composer{display:flex;gap:.75rem}.composer input{flex:1;padding:.75rem 1rem;border-radius:999px;border:1px solid #cbd5e1}.composer button{border:0;border-radius:999px;padding:.75rem 1.25rem;background:#1d4ed8;color:#fff;cursor:pointer}.meta{margin-top:2rem;display:grid;gap:1rem}.meta section{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1rem}.loading{color:#64748b}.error{color:#b91c1c}