:root{color:#202327;font-synthesis:none;text-rendering:optimizelegibility;--bg:#f4f5f7;--surface:#fff;--surface-muted:#f7f8fa;--border:#d9dde3;--border-soft:#e8ebef;--text:#202327;--muted:#69717d;--accent:#9b5c2e;--accent-dark:#72401f;--accent-soft:#f4e8df;--danger:#b42318;background:#f4f5f7;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,textarea{font:inherit}.app-shell{background:linear-gradient(180deg, #ffffffd1, #f4f5f7f5), var(--bg);min-height:100vh;padding:18px;display:grid}.assistant-window{border:1px solid var(--border);background:var(--surface);border-radius:8px;flex-direction:column;width:min(1180px,100%);min-height:calc(100vh - 36px);margin:0 auto;display:flex;overflow:hidden;box-shadow:0 18px 48px #2023271a}.chat-header{border-bottom:1px solid var(--border-soft);justify-content:space-between;align-items:center;gap:16px;padding:14px 18px;display:flex}.brand-lockup{align-items:center;gap:12px;min-width:0;display:flex}.assistant-mark{background:var(--accent-soft);width:38px;height:38px;color:var(--accent-dark);border:1px solid #d7c2b3;border-radius:8px;flex:none;place-items:center;font-weight:720;display:grid}.eyebrow{color:var(--muted);margin:0 0 4px;font-size:12px}h1{color:var(--text);margin:0;font-size:22px;font-weight:700}.header-actions{justify-content:flex-end;align-items:center;gap:8px;display:flex}.status{color:var(--accent-dark);white-space:nowrap;background:#fffaf6;border:1px solid #d7c2b3;border-radius:999px;flex:none;padding:7px 10px;font-size:12px}.status.error{color:var(--danger);background:#fff6f5;border-color:#f2b8b5}button{cursor:pointer;border:1px solid #0000;border-radius:8px;font-weight:650}button:disabled{cursor:not-allowed;opacity:.55}.ghost-button,.primary-button,.send-button{min-height:38px;padding:8px 12px}.ghost-button{border-color:var(--border);background:var(--surface);color:var(--text)}.ghost-button:hover:not(:disabled){background:var(--surface-muted)}.primary-button,.send-button{border-color:var(--accent);background:var(--accent);color:#fff}.primary-button:hover:not(:disabled),.send-button:hover:not(:disabled){background:var(--accent-dark)}.workspace{flex:1;grid-template-columns:260px minmax(0,1fr);min-height:0;display:grid}.context-panel{border-right:1px solid var(--border-soft);background:var(--surface-muted);padding:18px}.context-panel h2{color:var(--text);margin:0 0 12px;font-size:16px}.session-id{overflow-wrap:anywhere;color:var(--text);margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;line-height:1.5}.context-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;display:flex}.context-meta span{border:1px solid var(--border);color:var(--muted);background:#fff;border-radius:999px;padding:5px 8px;font-size:12px}.chat-column{background:#fff;flex-direction:column;min-width:0;min-height:0;display:flex}.message-list{flex:1;padding:28px 24px;overflow-y:auto}.message{white-space:pre-wrap;width:min(760px,100%);margin-bottom:18px;line-height:1.55}.message span{color:var(--muted);margin-bottom:6px;font-size:13px;font-weight:700;display:block}.message p{overflow-wrap:anywhere;margin:0}.message.assistant{color:var(--text)}.message.user{border:1px solid var(--border-soft);background:var(--surface-muted);border-radius:8px;margin-left:auto;padding:12px 14px}.message.user span{color:var(--accent-dark)}.composer{border-top:1px solid var(--border-soft);background:#fbfbfc;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:16px 18px;display:grid}.composer textarea{resize:vertical;border:1px solid var(--border);min-height:54px;max-height:180px;color:var(--text);background:#fff;border-radius:8px;padding:13px 14px;line-height:1.45}.composer textarea:focus{border-color:#bf8d69;outline:2px solid #f4e8df}.send-button{align-self:end;min-width:116px;min-height:48px;padding:10px 16px}.chat-footer{border-top:1px solid var(--border-soft);min-height:38px;color:var(--muted);justify-content:space-between;align-items:center;gap:12px;padding:9px 18px;font-size:12px;display:flex}.chat-footer strong{color:var(--danger);font-weight:650}@media (width<=840px){.workspace{grid-template-columns:1fr}.context-panel{display:none}}@media (width<=640px){.app-shell{padding:8px}.assistant-window{min-height:calc(100vh - 16px)}.chat-header{flex-direction:column;align-items:stretch}.header-actions{flex-wrap:wrap;align-items:stretch}.status{text-align:center;width:100%}.ghost-button,.primary-button{flex:1}.message-list{padding:20px 14px}.composer{grid-template-columns:1fr;padding:12px}.send-button{width:100%}.chat-footer{flex-direction:column;align-items:flex-start}}