:root {
  --bg: #0b1220;
  --panel: #111a2e;
  --panel-2: #172238;
  --border: #263356;
  --text: #e8eefc;
  --muted: #8ea1c7;
  --accent: #60a5fa;
  --accent-2: #34d399;
  --danger: #f87171;
  --warn: #fbbf24;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-rows: 56px 1fr;
  grid-template-areas: "header header" "sidebar main";
  height: 100vh;
}
header.topbar {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
header.topbar h1 { font-size: 16px; margin: 0; font-weight: 600; }
header.topbar .config {
  margin-left: auto;
  display: flex;
  gap: 8px;
  align-items: center;
}
header.topbar input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 8px;
  border-radius: 4px;
  width: 320px;
  font-size: 12px;
}
header.topbar button {
  background: var(--accent);
  border: none;
  color: white;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}

nav.sidebar {
  grid-area: sidebar;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 16px 0;
}
nav.sidebar a {
  display: block;
  padding: 8px 16px;
  color: var(--muted);
  cursor: pointer;
}
nav.sidebar a.active {
  background: var(--panel-2);
  color: var(--text);
  border-left: 3px solid var(--accent);
  padding-left: 13px;
}

main.content {
  grid-area: main;
  overflow: auto;
  padding: 24px;
}

.grid {
  display: grid;
  gap: 16px;
}
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.card h3 {
  margin: 0 0 12px 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.card .big { font-size: 28px; font-weight: 600; }
.card .sub { color: var(--muted); font-size: 12px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table th, table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: sticky;
  top: 0;
  background: var(--panel);
}
table tr:hover td { background: var(--panel-2); }
table td.num { text-align: right; font-variant-numeric: tabular-nums; }

.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.filters input, .filters select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 13px;
}
.filters input { min-width: 240px; }
.filters button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
}
.badge.ok      { background: rgba(52, 211, 153, 0.15); color: var(--accent-2); }
.badge.warn    { background: rgba(251, 191, 36, 0.15); color: var(--warn); }
.badge.danger  { background: rgba(248, 113, 113, 0.15); color: var(--danger); }
.badge.info    { background: rgba(96, 165, 250, 0.15); color: var(--accent); }

.empty, .loading, .error {
  padding: 32px;
  text-align: center;
  color: var(--muted);
}
.error { color: var(--danger); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
}
.section-head h2 { margin: 0; font-size: 18px; font-weight: 600; }

canvas { max-width: 100%; }

details { background: var(--panel-2); padding: 8px 12px; border-radius: 4px; margin-bottom: 6px; }
details summary { cursor: pointer; color: var(--accent); }
pre { background: var(--bg); padding: 8px; border-radius: 4px; overflow: auto; font-size: 12px; }