*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #0a0e17;--bg-secondary: #111827;--bg-tertiary: #1e293b;--text-primary: #e2e8f0;--text-secondary: #94a3b8;--accent: #38bdf8;--accent-dim: #0ea5e9;--user-bubble: #1e3a5f;--assistant-bubble: #1e293b;--border: #334155;--danger: #ef4444}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);height:100dvh;overflow:hidden}#root{height:100%}.app{display:flex;flex-direction:column;height:100%;max-width:860px;margin:0 auto}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border)}.app-header h1{font-size:18px;font-weight:600;color:var(--accent);letter-spacing:2px}.agent-switcher{display:flex;gap:6px}.agent-tab{padding:4px 12px;border:1px solid var(--border);border-radius:16px;background:transparent;color:var(--text-secondary);font-size:12px;font-family:inherit;cursor:pointer;transition:all .15s}.agent-tab:hover:not(:disabled){color:var(--text-primary);border-color:var(--accent)}.agent-tab.active{color:var(--accent);border-color:var(--accent);background:#38bdf81a}.agent-tab:disabled{opacity:.5;cursor:not-allowed}.status{font-size:12px;padding:4px 10px;border-radius:12px}.status.connected{color:#4ade80;background:#4ade801a}.status.disconnected{color:var(--danger);background:#ef44441a}.chat-window{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}.chat-empty{margin:auto;text-align:center;color:var(--text-secondary)}.chat-empty h2{font-size:28px;color:var(--accent);letter-spacing:4px;margin-bottom:8px}.message{display:flex}.message-user{justify-content:flex-end}.message-assistant{justify-content:flex-start}.message-bubble{max-width:75%;padding:10px 16px;border-radius:12px;line-height:1.5;font-size:14px}.message-user .message-bubble{background:var(--user-bubble);border-bottom-right-radius:4px}.message-assistant .message-bubble{background:var(--assistant-bubble);border-bottom-left-radius:4px}.message-bubble p{margin:0}.message-bubble p+p{margin-top:8px}.message-bubble pre{background:var(--bg-primary);padding:12px;border-radius:8px;overflow-x:auto;margin:8px 0;font-size:13px}.message-bubble code{font-family:Fira Code,Cascadia Code,monospace;font-size:13px}.message-bubble :not(pre)>code{background:var(--bg-primary);padding:2px 6px;border-radius:4px}.message-bubble ul,.message-bubble ol{padding-left:20px;margin:8px 0}.message-heartbeat{justify-content:flex-start}.message-heartbeat .message-bubble{background:#38bdf814;border:1px solid rgba(56,189,248,.2);border-bottom-left-radius:4px}.heartbeat-icon{display:inline-flex;align-items:center;color:var(--accent);margin-right:6px;vertical-align:middle;animation:heartbeat-pulse 2s ease-in-out infinite}@keyframes heartbeat-pulse{0%,to{opacity:.6}50%{opacity:1}}.streaming-indicator{display:flex;gap:4px;padding:8px 16px}.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 1.4s infinite ease-in-out}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,80%,to{opacity:.3;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.message-input{display:flex;gap:10px;padding:16px 20px;border-top:1px solid var(--border)}.message-input textarea{flex:1;resize:none;border:1px solid var(--border);border-radius:12px;padding:10px 16px;font-size:14px;font-family:inherit;background:var(--bg-secondary);color:var(--text-primary);outline:none;min-height:42px;max-height:200px}.message-input textarea:focus{border-color:var(--accent)}.message-input textarea::placeholder{color:var(--text-secondary)}.message-input button{padding:10px 20px;border:none;border-radius:12px;background:var(--accent-dim);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s;align-self:flex-end}.message-input button:hover:not(:disabled){background:var(--accent)}.message-input button:disabled{opacity:.4;cursor:not-allowed}.chat-window::-webkit-scrollbar{width:6px}.chat-window::-webkit-scrollbar-track{background:transparent}.chat-window::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.error-boundary{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;color:var(--text-primary);text-align:center;padding:2rem}.error-boundary h2{margin-bottom:.5rem}.error-boundary p{color:var(--text-secondary);margin-bottom:1.5rem}.error-boundary button{background:var(--accent);color:var(--bg-primary);border:none;padding:.5rem 1.5rem;border-radius:6px;cursor:pointer;font-size:1rem}