:root{
  --bg:#0f1419; --panel:#1a2230; --panel2:#222d3d; --line:#2d3a4d;
  --text:#e6ebf2; --muted:#8c9bb0; --brand:#4f9cf9; --brand2:#2563eb;
  --ok:#22c55e; --warn:#f59e0b; --bad:#ef4444; --hold:#a855f7;
  --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI","Malgun Gothic",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--line);
  flex-shrink:0;display:flex;flex-direction:column}
.brand{padding:18px 20px;font-weight:700;font-size:18px;border-bottom:1px solid var(--line)}
.brand small{display:block;color:var(--muted);font-size:11px;font-weight:400;margin-top:2px}
.nav{padding:10px 0;flex:1}
.nav a{display:block;padding:11px 20px;color:var(--text);font-size:13px}
.nav a:hover{background:var(--panel2);text-decoration:none}
.nav a.active{background:var(--brand2);color:#fff;border-left:3px solid var(--brand)}
.nav .group{padding:14px 20px 6px;color:var(--muted);font-size:11px;letter-spacing:1px}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:56px;background:var(--panel);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;padding:0 22px}
.topbar .who{color:var(--muted);font-size:13px}
.content{padding:22px;flex:1}

/* components */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin-bottom:18px}
.card h3{margin:0 0 14px;font-size:15px}
.grid{display:grid;gap:16px}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.grid.c4,.grid.c3,.grid.c2{grid-template-columns:1fr 1fr}}

.kpi{background:var(--panel2);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.kpi .label{color:var(--muted);font-size:12px}
.kpi .value{font-size:26px;font-weight:700;margin-top:6px}
.kpi .sub{color:var(--muted);font-size:11px;margin-top:4px}

table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left}
th{color:var(--muted);font-weight:600;font-size:12px;background:var(--panel2)}
tr:hover td{background:rgba(255,255,255,.02)}

.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11px;font-weight:600}
.b-ok{background:rgba(34,197,94,.15);color:var(--ok)}
.b-warn{background:rgba(245,158,11,.15);color:var(--warn)}
.b-bad{background:rgba(239,68,68,.15);color:var(--bad)}
.b-hold{background:rgba(168,85,247,.15);color:var(--hold)}
.b-info{background:rgba(79,156,249,.15);color:var(--brand)}
.b-muted{background:rgba(140,155,176,.15);color:var(--muted)}

.btn{display:inline-block;padding:8px 14px;border-radius:8px;border:1px solid var(--line);
  background:var(--panel2);color:var(--text);cursor:pointer;font-size:13px}
.btn:hover{background:var(--line);text-decoration:none}
.btn.primary{background:var(--brand2);border-color:var(--brand2);color:#fff}
.btn.primary:hover{background:#1d4ed8}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#04210f}
.btn.bad{background:var(--bad);border-color:var(--bad);color:#fff}

label{display:block;margin:10px 0 5px;font-size:13px;color:var(--muted)}
input,select,textarea{width:100%;padding:9px 11px;background:var(--bg);
  border:1px solid var(--line);border-radius:8px;color:var(--text);font-size:14px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand)}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row > div{flex:1;min-width:180px}

.flash{background:rgba(79,156,249,.12);border:1px solid var(--brand);
  color:var(--brand);padding:11px 14px;border-radius:8px;margin-bottom:16px}
.muted{color:var(--muted)}
.right{text-align:right}
.center{text-align:center}
.nowrap{white-space:nowrap}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:10px;flex-wrap:wrap}

/* login */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh}
.login-box{width:360px;background:var(--panel);border:1px solid var(--line);
  border-radius:14px;padding:32px}
.login-box h2{margin:0 0 4px}
.login-box p{color:var(--muted);margin:0 0 20px;font-size:13px}

/* progress bar */
.bar{height:8px;background:var(--panel2);border-radius:6px;overflow:hidden}
.bar > span{display:block;height:100%;background:var(--brand)}