:root{--bg: #0f1117;--surface: #181b23;--surface-2: #1f232d;--border: #2a2f3a;--text: #e6e8ec;--text-dim: #9aa1ad;--primary: #7c6cf5;--primary-dim: #5b4fd6;--green: #3fbf7f;--red: #f2555a;--amber: #e0a94a;--blue: #4a9fe0;--purple: #a97cf5;--mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px}button{font-family:inherit;cursor:pointer}.mono{font-family:var(--mono)}.nav{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:56px;border-bottom:1px solid var(--border);background:var(--surface)}.nav-brand{display:flex;align-items:center;gap:10px;font-weight:600}.nav-brand .logo{font-size:18px}.nav-right{display:flex;align-items:center;gap:14px;color:var(--text-dim)}.layout{display:grid;grid-template-columns:1fr 400px;gap:20px;padding:20px 24px;max-width:1400px;margin:0 auto}@media (max-width: 980px){.layout{grid-template-columns:1fr}}.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px}.panel h2{margin:0 0 14px;font-size:15px;font-weight:600}.solve-row{display:flex;gap:10px}input[type=text],input[type=email],input[type=password]{flex:1;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:14px;outline:none}input:focus{border-color:var(--primary)}.btn{background:var(--primary);color:#fff;border:none;border-radius:8px;padding:10px 18px;font-weight:600}.btn:hover{background:var(--primary-dim)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text-dim);border-radius:8px;padding:8px 14px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}.metric{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:12px}.metric .label{color:var(--text-dim);font-size:11px;text-transform:uppercase;letter-spacing:.5px}.metric .value{font-family:var(--mono);font-size:20px;margin-top:4px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}.dot.running{background:var(--amber);animation:pulse 1.2s infinite}.dot.success{background:var(--green)}.dot.failed{background:var(--red)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.35}}.trace{border-left:2px solid var(--border);margin-left:8px;padding-left:16px;display:flex;flex-direction:column;gap:10px;max-height:60vh;overflow-y:auto}.trace-item{background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--border);border-radius:8px;padding:10px 12px}.trace-item.llm{border-left-color:var(--purple)}.trace-item.tool{border-left-color:var(--blue)}.trace-item.tool_result{border-left-color:var(--green)}.trace-item.final{border-left-color:var(--amber);background:#23201a}.trace-item.error{border-left-color:var(--red)}.trace-head{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-dim)}.chip{font-family:var(--mono);font-size:11px;background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:1px 6px;color:var(--text)}.trace-body{margin-top:6px;font-size:13px;white-space:pre-wrap;word-break:break-word}.trace-body.reasoning{font-style:italic;color:var(--text-dim)}.trace-body pre{font-family:var(--mono);font-size:12px;background:var(--bg);border-radius:6px;padding:8px;margin:6px 0 0;overflow-x:auto}.run-list{display:flex;flex-direction:column;gap:8px;max-height:70vh;overflow-y:auto}.run-row{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:10px 12px;cursor:pointer}.run-row:hover{border-color:var(--primary)}.run-row .url{font-family:var(--mono);font-size:12px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.run-row .stats{display:flex;gap:12px;margin-top:6px;font-size:11px;color:var(--text-dim)}.badge{font-size:11px;padding:1px 8px;border-radius:10px;font-weight:600}.badge.success{background:#3fbf7f26;color:var(--green)}.badge.failed{background:#f2555a26;color:var(--red)}.badge.running{background:#e0a94a26;color:var(--amber)}.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh}.auth-card{width:360px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:28px}.auth-card h1{font-size:20px;margin:0 0 4px}.auth-card p.sub{color:var(--text-dim);margin:0 0 20px;font-size:13px}.tabs{display:flex;gap:6px;margin-bottom:16px}.tab{flex:1;padding:8px;text-align:center;border-radius:8px;background:var(--surface-2);border:1px solid var(--border);color:var(--text-dim)}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.field{margin-bottom:12px}.field label{display:block;font-size:12px;color:var(--text-dim);margin-bottom:4px}.field input{width:100%}.error-msg{color:var(--red);font-size:12px;margin:8px 0 0}.empty{color:var(--text-dim);font-size:13px;padding:20px 0;text-align:center}