:root{--primary: #8559f9;--primary-hover: #7346ec;--primary-soft: #f1ecff;--text: #141414;--muted: #75839e;--border: #e6ebf4;--bg: #f9fafc;--surface: #ffffff;--surface-alt: #edf2f9;--active: #f9fafa;--error: #890000;--error-bg: #fff1f0;--success: #366948;--code-bg: #f4f6fb;--shadow: 0 1px 3px rgba(20, 20, 20, .06), 0 1px 2px rgba(20, 20, 20, .04);--radius: 10px;color-scheme:light}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--primary: #9b78ff;--primary-hover: #8a63ff;--primary-soft: #2a2245;--text: #eceef3;--muted: #9aa5bb;--border: #2b3140;--bg: #12151c;--surface: #1a1e27;--surface-alt: #222836;--active: #242a38;--error: #ff8a80;--error-bg: #3a1b1b;--success: #7fc79a;--code-bg: #232937;--shadow: none;color-scheme:dark}}:root[data-theme=dark]{--primary: #9b78ff;--primary-hover: #8a63ff;--primary-soft: #2a2245;--text: #eceef3;--muted: #9aa5bb;--border: #2b3140;--bg: #12151c;--surface: #1a1e27;--surface-alt: #222836;--active: #242a38;--error: #ff8a80;--error-bg: #3a1b1b;--success: #7fc79a;--code-bg: #232937;--shadow: none;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Poppins,system-ui,-apple-system,Segoe UI,sans-serif;font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit;color:inherit}.muted{color:var(--muted)}.small{font-size:12px}.center-screen{height:100%;display:grid;place-items:center}.center-block{text-align:center;padding:32px 0}.btn-primary,.btn-secondary{border-radius:8px;padding:10px 18px;font-weight:500;cursor:pointer;border:2px solid var(--primary);transition:background-color .15s,border-color .15s,opacity 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var(--border);padding-left:10px}.conversation-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px;min-height:0}.empty-list{padding:8px 6px}.conversation-item{display:flex;align-items:center;justify-content:space-between;gap:8px;text-align:left;background:none;border:none;border-radius:8px;padding:9px 10px;cursor:pointer;color:var(--muted)}.conversation-item:hover{background:var(--active);color:var(--text)}.conversation-item.active{background:var(--primary-soft);color:var(--primary);font-weight:500}.conversation-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conversation-date{font-size:11px;flex-shrink:0;opacity:.8}.sidebar-footer{border-top:1px solid var(--border);padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:8px}.user-chip{display:flex;align-items:center;gap:8px;min-width:0}.avatar{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:600;flex-shrink:0}.user-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.sidebar-backdrop,.menu-toggle{display:none}.chat-main{display:flex;flex-direction:column;min-width:0;min-height:0}.chat-header{display:flex;align-items:center;gap:12px;padding:14px 24px;border-bottom:1px solid var(--border);background:var(--surface)}.chat-header-title{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.readonly-badge{font-size:11px;font-weight:500;color:var(--success);border:1px solid currentColor;border-radius:999px;padding:2px 10px;flex-shrink:0}.thread{flex:1;overflow-y:auto;padding:24px max(16px,calc((100% - 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var(--border);box-shadow:var(--shadow);width:100%;border-bottom-left-radius:4px}.status-line{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.markdown+.status-line{margin-top:8px}.dot-pulse{width:8px;height:8px;border-radius:50%;background:var(--primary);animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}.markdown>:first-child{margin-top:0}.markdown>:last-child{margin-bottom:0}.markdown p,.markdown ul,.markdown ol{margin:0 0 10px}.markdown ul,.markdown ol{padding-left:22px}.markdown h1,.markdown h2,.markdown h3{font-size:15px;font-weight:600;margin:14px 0 6px}.markdown code{background:var(--code-bg);border-radius:4px;padding:1px 5px;font-size:12.5px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.markdown pre{background:var(--code-bg);border-radius:8px;padding:10px 12px;overflow-x:auto}.markdown pre code{background:none;padding:0}.markdown table{border-collapse:collapse;margin:0 0 10px;display:block;overflow-x:auto}.markdown th,.markdown td{border:1px solid var(--border);padding:6px 10px;text-align:left}.markdown th{background:var(--surface-alt);font-weight:600}.markdown a{color:var(--primary)}.composer{display:flex;gap:10px;align-items:flex-end;padding:14px max(16px,calc((100% - 820px)/2)) 20px;border-top:1px solid var(--border);background:var(--surface)}.composer textarea{flex:1;resize:none;border:1px solid var(--border);border-radius:10px;padding:11px 14px;min-height:46px;max-height:180px;field-sizing:content;background:var(--surface)}.composer textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.composer textarea:disabled{opacity:.7}.composer button{height:46px}@media (max-width: 760px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:min(300px,85vw);z-index:20;transform:translate(-100%);transition:transform .2s ease}.sidebar-open .sidebar{transform:translate(0)}.sidebar-open .sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;z-index:10}.menu-toggle{display:inline-grid;place-items:center}.chat-header{padding:12px 16px}.message-user .bubble{max-width:90%}}