:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c2230;
  --border: #21262d;
  --text: #e6edf3;
  --muted: #8b949e;
  --healthy: #2ea043;
  --degraded: #d29922;
  --down: #f85149;
  --missing: #6e7681;
  --link: #58a6ff;
  --pill-bg: #1f2937;
  --provider-bg: #131923;
  --day-header-bg: #11151c;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.5 -apple-system, "Segoe UI", system-ui, sans-serif;
}

header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: 12px;
}
header .title { display: flex; align-items: center; gap: 12px; }
header h1 { font-size: 18px; margin: 0; font-weight: 600; }
header .meta { display: flex; gap: 12px; align-items: center; color: var(--muted); flex-wrap: wrap; }
header .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--missing); }
header .dot.healthy { background: var(--healthy); }
header .dot.degraded { background: var(--degraded); }
header .dot.down { background: var(--down); }

.version-pill {
  background: var(--pill-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  cursor: help;
}
.version-pill.muted { color: var(--muted); }

nav#env-tabs {
  display: flex; gap: 4px; padding: 0 24px;
  border-bottom: 1px solid var(--border); background: var(--panel);
}
nav#env-tabs button {
  background: transparent; color: var(--muted); border: none;
  padding: 12px 16px; cursor: pointer; font: inherit;
  border-bottom: 2px solid transparent;
}
nav#env-tabs button.active { color: var(--text); border-bottom-color: var(--link); }
nav#env-tabs button:hover { color: var(--text); }

main { padding: 24px; max-width: 1200px; margin: 0 auto; }
main h2 { font-size: 14px; text-transform: uppercase; color: var(--muted); margin: 32px 0 12px; letter-spacing: 0.5px; }
main h2:first-child { margin-top: 0; }

/* ---------- Provider sections (region cards) ---------- */
.provider-section {
  background: var(--provider-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}
.provider-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.provider-header h3 {
  margin: 0; font-size: 13px; letter-spacing: 0.6px; text-transform: uppercase;
  color: var(--text);
}
.provider-section.healthy .provider-header h3::before  { background: var(--healthy); }
.provider-section.degraded .provider-header h3::before { background: var(--degraded); }
.provider-section.down .provider-header h3::before     { background: var(--down); }
.provider-header h3::before {
  content: ""; display: inline-block; width: 8px; height: 8px;
  border-radius: 50%; margin-right: 8px; vertical-align: middle;
  background: var(--missing);
}
.provider-count { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

.region-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.region-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px;
}
.region-card h4 { margin: 0; font-size: 13px; color: var(--text); font-weight: 600; }
.region-card .code { color: var(--muted); font-size: 11px; text-transform: uppercase; margin-bottom: 8px; }
.region-card .count { font-size: 22px; font-weight: 600; }
.region-card .count .total { color: var(--muted); font-size: 14px; }
.region-card .bar { height: 4px; background: var(--border); border-radius: 2px; margin-top: 8px; overflow: hidden; }
.region-card .bar div { height: 100%; background: var(--healthy); }
.region-card.degraded .bar div { background: var(--degraded); }
.region-card.down .bar div { background: var(--down); }

/* ---------- Node groups (per-region subgrids) ---------- */
.legend { display: flex; gap: 16px; color: var(--muted); font-size: 12px; margin-bottom: 12px; }
.legend i.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }
.sw.healthy { background: var(--healthy); }
.sw.degraded { background: var(--degraded); }
.sw.down { background: var(--down); }
.sw.missing { background: var(--missing); }

.node-provider {
  background: var(--provider-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}
.node-provider-header {
  margin: 0 0 12px;
  font-size: 13px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--text);
}
.node-region-group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.node-region-group:last-child { margin-bottom: 0; }
.node-region-label {
  display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px;
  flex-wrap: wrap;
}
.node-region-label .region-name { color: var(--text); font-weight: 600; font-size: 13px; }
.node-region-label .region-code { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.node-region-label .region-count { color: var(--muted); font-size: 12px; margin-left: auto; font-variant-numeric: tabular-nums; }

.node-subgrid {
  display: grid;
  grid-template-columns: repeat(25, 1fr);
  gap: 4px;
}
.cell {
  aspect-ratio: 1; border-radius: 3px; background: var(--missing);
  cursor: pointer; position: relative;
  min-height: 18px;
}
.cell.healthy { background: var(--healthy); }
.cell.degraded { background: var(--degraded); }
.cell.down { background: var(--down); }
.cell:hover { outline: 2px solid var(--link); }

@media (max-width: 720px) {
  .node-subgrid { grid-template-columns: repeat(13, 1fr); }
}

.tooltip {
  position: fixed; pointer-events: none; z-index: 100;
  background: #000; border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 12px; font-size: 12px; max-width: 300px;
}
.tooltip strong { display: block; margin-bottom: 4px; }
.tooltip dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 2px 8px; }
.tooltip dt { color: var(--muted); }

/* ---------- Timeline ---------- */
.filters { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.filters select {
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  padding: 6px 10px; border-radius: 6px; font: inherit;
}

.event-summary { color: var(--muted); font-size: 12px; margin-bottom: 8px; }

#events { display: flex; flex-direction: column; gap: 16px; }

.day-group { background: transparent; }
.day-header {
  position: sticky; top: 0;
  background: var(--day-header-bg);
  margin: 0; padding: 8px 12px;
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  z-index: 5;
}
.day-group ol { list-style: none; padding: 0; margin: 0; }

.event-row {
  display: grid;
  grid-template-columns: 80px auto 1fr;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  align-items: center;
}
.event-row:first-child { border-top: 1px solid var(--border); }
.event-row.has-log { cursor: pointer; }
.event-row.has-log:hover { background: var(--panel-2); }
.event-row .ts { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 12px; }
.event-row .badge {
  font-size: 11px; text-transform: uppercase; padding: 2px 8px;
  border-radius: 12px; background: var(--border); color: var(--text);
  text-align: center; min-width: 86px;
}
.event-row .badge.crash       { background: var(--down); }
.event-row .badge.unreachable { background: var(--degraded); color: #000; }
.event-row .badge.stalled     { background: var(--degraded); color: #000; }
.event-row .badge.recovered   { background: var(--healthy); }
.event-row .event-body { display: flex; flex-direction: column; gap: 2px; }
.event-row .event-summary-text { color: var(--text); }
.event-row .event-where { color: var(--muted); font-size: 11px; }
.event-row pre {
  display: none;
  grid-column: 1 / -1;
  background: #000; color: #c9d1d9;
  padding: 12px; border-radius: 4px; margin: 12px 0 0;
  font-size: 11px; line-height: 1.4; overflow-x: auto; max-height: 320px;
  white-space: pre;
}
.event-row.expanded pre { display: block; }

/* ---------- Pagination ---------- */
.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; margin-top: 16px; padding: 8px;
}
.pagination button {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 14px; font: inherit; cursor: pointer;
}
.pagination button:hover:not(:disabled) { background: var(--panel-2); border-color: var(--link); }
.pagination button:disabled { color: var(--muted); cursor: not-allowed; opacity: 0.5; }
.pagination .page-label { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

footer {
  text-align: center; padding: 24px; color: var(--muted); font-size: 12px;
  border-top: 1px solid var(--border); margin-top: 32px;
}
footer a { color: var(--link); text-decoration: none; }