:root {
  --bg: #0f1419; --panel: #1a2129; --panel-2: #222c36; --border: #2c3742;
  --text: #e6edf3; --muted: #8b98a5; --accent: #4c8dff;
  --ok: #2ea043; --warn: #d29922; --bad: #f85149;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text);
  display: grid; grid-template-columns: 220px 1fr; grid-template-rows: 60px 1fr;
  grid-template-areas: "top top" "nav main"; min-height: 100vh;
}
.topbar {
  grid-area: top; display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 34px; height: 34px; border-radius: 8px; background: var(--accent);
  color: #fff; font-weight: 700; display: grid; place-items: center;
}
.title { font-weight: 600; font-size: 15px; }
.subtitle { font-size: 12px; color: var(--muted); }
.context { display: flex; align-items: center; gap: 10px; }
.chip {
  font-size: 12px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 4px 10px; color: var(--muted);
}
.updated { font-size: 12px; color: var(--muted); }

.sidenav { grid-area: nav; background: var(--panel); border-right: 1px solid var(--border); padding: 12px 8px; }
.nav-item {
  display: block; padding: 9px 12px; border-radius: 8px; color: var(--text);
  text-decoration: none; font-size: 14px; margin-bottom: 2px;
}
.nav-item.active { background: var(--panel-2); color: #fff; }
.nav-item.disabled { color: var(--muted); pointer-events: none; opacity: .6; }

.grid { grid-area: main; padding: 20px; display: grid; gap: 18px; align-content: start; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.panel-head { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.panel-head h2 { margin: 0; font-size: 15px; font-weight: 600; }
.panel-head .tag { font-size: 11px; color: var(--muted); }
.panel-body { padding: 16px 18px; }

.stats { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.stat { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; min-width: 120px; }
.stat .num { font-size: 26px; font-weight: 700; }
.stat .lbl { font-size: 12px; color: var(--muted); }
.stat.ok .num { color: var(--ok); } .stat.bad .num { color: var(--bad); } .stat.warn .num { color: var(--warn); }

.bar { height: 8px; border-radius: 999px; background: var(--bad); overflow: hidden; margin-bottom: 16px; }
.bar > span { display: block; height: 100%; background: var(--ok); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 999px; margin-right: 6px; }
.dot.ok { background: var(--ok); } .dot.bad { background: var(--bad); }
.muted { color: var(--muted); }
details { margin-top: 14px; } summary { cursor: pointer; color: var(--accent); font-size: 13px; }
.err { color: var(--bad); }