:root{--bg:#0f1115;--panel:#171a21;--line:#262b36;--fg:#e6e8ee;--mute:#8b93a7;--acc:#5aa9ff;--ok:#3ddc84;--bad:#ff6b6b;--warn:#f5c451}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.55 -apple-system,"Pretendard","Noto Sans KR",system-ui,sans-serif}
nav{display:flex;gap:4px;align-items:center;padding:10px 18px;border-bottom:1px solid var(--line);background:var(--panel);position:sticky;top:0;z-index:5}
nav .brand{font-weight:700;margin-right:18px;color:var(--acc)}nav a{color:var(--mute);text-decoration:none;padding:6px 12px;border-radius:8px}nav a.on,nav a:hover{color:var(--fg);background:#22273200;background:#232836}
nav .st{margin-left:auto;font-size:13px;color:var(--mute)}.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--bad);margin:0 4px 0 12px;vertical-align:middle}.dot.on{background:var(--ok)}
main{max-width:1280px;margin:0 auto;padding:20px 18px}h1{font-size:22px;margin:6px 0 14px}h2{font-size:17px;margin:26px 0 10px;color:var(--acc)}h3{font-size:15px;margin:16px 0 6px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:900px){.grid2{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}.card h2{margin-top:0}
.chat{display:flex;flex-direction:column;height:calc(100vh - 230px);min-height:420px}.chat .log{flex:1;overflow:auto;padding:6px 2px}
.msg{margin:6px 0;padding:9px 12px;border-radius:10px;white-space:pre-wrap;word-break:break-word}.msg.u{background:#22304a;margin-left:12%}.msg.a{background:#1d2230;margin-right:6%}
.msg.a .think{color:var(--mute);font-size:13px;border-left:2px solid var(--line);padding-left:8px;margin-bottom:6px}
.bar{display:flex;gap:8px;margin-top:10px}.bar input,.bar textarea{flex:1;background:#0f1218;color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:9px 11px;font:inherit}
button{background:var(--acc);color:#081018;border:0;border-radius:8px;padding:9px 14px;font:inherit;font-weight:600;cursor:pointer}button.sec{background:#2a3040;color:var(--fg)}button:disabled{opacity:.5;cursor:default}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.chips button{background:#232836;color:var(--fg);font-weight:500;padding:6px 10px;font-size:13px}
.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.tag.before{background:#3a2f1a;color:var(--warn)}.tag.after{background:#183a2a;color:var(--ok)}
.kpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.kpi .card{text-align:center}.kpi .big{font-size:34px;font-weight:700;font-variant-numeric:tabular-nums}.kpi .sub{color:var(--mute);font-size:13px}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}th,td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--mute);font-weight:600;font-size:13px}
.ok{color:var(--ok)}.bad{color:var(--bad)}.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.hbar{height:10px;background:#232836;border-radius:6px;overflow:hidden}.hbar i{display:block;height:100%;background:var(--acc)}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0}.filters select,.filters input{background:#0f1218;color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:7px 10px;font:inherit}
.note{color:var(--mute);font-size:13px}code{background:#232836;padding:1px 5px;border-radius:4px;font-size:13px}pre{background:#0f1218;border:1px solid var(--line);border-radius:10px;padding:12px 14px;overflow:auto;font-size:13px;line-height:1.5}
.step{display:grid;grid-template-columns:44px 1fr;gap:12px;margin:12px 0}.step .n{width:36px;height:36px;border-radius:50%;background:#232836;color:var(--acc);display:flex;align-items:center;justify-content:center;font-weight:700}
.eq{background:#0f1218;border-left:3px solid var(--acc);padding:10px 14px;border-radius:0 8px 8px 0;font-family:ui-monospace,Menlo,monospace;font-size:13px;white-space:pre}
.callout{border:1px solid #3a4a6a;background:#16203a;border-radius:10px;padding:10px 14px;margin:10px 0}