:root{--bg:#0a0e14;--bg-elev:#111722;--bg-elev2:#161e2b;--border:#1f2a3a;--text:#e6edf3;--text-dim:#8b97a8;--accent:#36d1dc;--accent-dim:#1b6f76;--user-bubble:#1a2942;--tool:#2a2140;--tool-border:#4b3a7a;--danger:#ff6b6b}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.app{display:grid;grid-template-columns:1fr 320px;height:100vh}@media (max-width:820px){.app{grid-template-columns:1fr}.panel{display:none}}.chat{display:flex;flex-direction:column;height:100vh;min-width:0}.topbar{justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);background:var(--bg-elev)}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-weight:700;letter-spacing:.5px}.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}.brand small{font-weight:400}.brand small,.logout{color:var(--text-dim)}.logout{background:none;border:1px solid var(--border);padding:6px 12px;border-radius:8px;cursor:pointer;font-size:13px}.logout:hover{color:var(--text);border-color:var(--accent-dim)}.messages{flex:1 1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:18px}.empty{margin:auto;text-align:center;color:var(--text-dim);max-width:420px}.empty h2{color:var(--text);font-weight:600}.suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}.suggestions button{background:var(--bg-elev2);border:1px solid var(--border);color:var(--text-dim);padding:8px 12px;border-radius:10px;cursor:pointer;font-size:13px}.suggestions button:hover{color:var(--text);border-color:var(--accent-dim)}.msg{display:flex;flex-direction:column;max-width:760px;width:100%;margin:0 auto}.msg .who{font-size:12px;color:var(--text-dim);margin-bottom:6px}.bubble{padding:12px 16px;border-radius:14px;line-height:1.55;white-space:pre-wrap;word-wrap:break-word}.msg.user{align-items:flex-end}.msg.user .bubble{background:var(--user-bubble);border:1px solid #243a5c}.msg.assistant .bubble{background:var(--bg-elev);border:1px solid var(--border)}.tools{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}.toolchip{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;background:var(--tool);border:1px solid var(--tool-border);color:#c9b8ff;padding:5px 10px;border-radius:9px;font-size:12.5px;font-family:ui-monospace,monospace}.toolchip .spin{animation:pulse 1.2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.cursor{display:inline-block;width:8px;background:var(--accent);margin-left:2px;animation:blink 1s steps(2) infinite}@keyframes blink{50%{opacity:0}}.composer{border-top:1px solid var(--border);padding:16px 24px;background:var(--bg-elev)}.composer form{display:flex;gap:10px;max-width:760px;margin:0 auto}.composer textarea{flex:1 1;resize:none;background:var(--bg-elev2);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:12px 14px;font-family:inherit;font-size:15px;max-height:160px}.composer textarea:focus{outline:none;border-color:var(--accent-dim)}.composer button{background:var(--accent);color:#04212a;border:none;border-radius:12px;padding:0 20px;font-weight:700;cursor:pointer}.composer button:disabled{opacity:.4;cursor:not-allowed}.panel{border-left:1px solid var(--border);background:var(--bg-elev);overflow-y:auto;padding:18px}.panel h3{font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--text-dim);margin:22px 0 10px}.panel h3:first-child{margin-top:0}.fact{background:var(--bg-elev2);border:1px solid var(--border);border-radius:9px;padding:8px 10px;margin-bottom:6px;font-size:13px}.fact .pred{color:var(--accent)}.stat{display:flex;justify-content:space-between;font-size:13px;color:var(--text-dim);padding:4px 0}.stat b{color:var(--text)}.tool-item{font-size:12.5px;color:var(--text-dim);font-family:ui-monospace,monospace;padding:3px 0}.tool-item b{color:var(--text)}.login-wrap{height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:16px;padding:36px;width:340px;text-align:center}.login-card .dot{width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px var(--accent);margin:0 auto 16px}.login-card h1{margin:0 0 4px;letter-spacing:1px}.login-card p{color:var(--text-dim);margin:0 0 24px;font-size:14px}.login-card input{width:100%;background:var(--bg-elev2);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:12px;font-size:15px;margin-bottom:12px}.login-card input:focus{outline:none;border-color:var(--accent-dim)}.login-card button{width:100%;background:var(--accent);color:#04212a;border:none;border-radius:10px;padding:12px;font-weight:700;cursor:pointer}.login-card .err{color:var(--danger);font-size:13px;min-height:18px;margin-top:4px}