:root{
  --bg:#0b1020;
  --panel:#121a2f;
  --panel-2:#17223d;
  --text:#e9eefc;
  --muted:#99a6c7;
  --line:#263555;
  --accent:#6ea8fe;
  --ok:#4cc38a;
  --warn:#f0b454;
  --bad:#e06c75;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:var(--panel);border-right:1px solid var(--line);padding:20px}
.brand{font-size:22px;font-weight:700;margin-bottom:6px}
.subbrand{font-size:12px;color:var(--muted);margin-bottom:24px}
.nav a,.nav button{display:block;width:100%;text-align:left;padding:10px 12px;border-radius:10px;color:var(--text);background:transparent;border:0;margin-bottom:6px}
.nav a.active,.nav button.active,.nav a:hover,.nav button:hover{background:var(--panel-2)}
.main{padding:24px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px}
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.kpi{font-size:28px;font-weight:700;margin-top:6px}
.muted{color:var(--muted)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}
.field{display:grid;gap:8px;margin-bottom:14px}
.field input,.field select,.field textarea{width:100%;padding:12px;border-radius:10px;border:1px solid var(--line);background:#0d1530;color:var(--text)}
.btn{padding:12px 14px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);border-radius:10px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#081224}
.btn.ghost{background:transparent}
.row{display:flex;gap:10px;align-items:center}
.row.space{justify-content:space-between}
.pill{display:inline-block;padding:4px 8px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:12px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:left}
.chat{display:grid;gap:12px}
.chat-log{display:grid;gap:10px;max-height:420px;overflow:auto;padding-right:4px}
.msg{padding:12px 14px;border-radius:12px;border:1px solid var(--line)}
.msg.user{background:#102045}
.msg.assistant{background:#111a33}
.msg.system{background:#1c2335;color:var(--muted)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap}
textarea{min-height:120px}
.notice{padding:12px 14px;border-radius:10px;margin:12px 0}
.notice.warn{background:rgba(240,180,84,.12);border:1px solid rgba(240,180,84,.3)}
.notice.ok{background:rgba(76,195,138,.12);border:1px solid rgba(76,195,138,.3)}
.notice.bad{background:rgba(224,108,117,.12);border:1px solid rgba(224,108,117,.3)}
.hidden{display:none !important}
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .sidebar{border-right:0;border-bottom:1px solid var(--line)}
  .grid-3,.grid-2{grid-template-columns:1fr}
}