:root {
  --bg: #0e1116;
  --bg-elev: #161b22;
  --bg-elev-2: #1c2330;
  --border: #2a3140;
  --fg: #e6edf3;
  --fg-muted: #8b949e;
  --accent: #58a6ff;
  --accent-2: #7ee787;
  --warn: #f0883e;
  --error: #f85149;
  --ok: #2ea043;
  --pending: #d29922;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand .logo {
  color: var(--accent);
  font-size: 22px;
}

.brand .title {
  font-weight: 600;
  font-size: 16px;
}

.brand .subtitle {
  color: var(--fg-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot-error { background: var(--error); box-shadow: 0 0 8px var(--error); }
.dot-pending { background: var(--pending); box-shadow: 0 0 8px var(--pending); }

.muted { color: var(--fg-muted); font-size: 12px; }

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}

.tab {
  background: transparent;
  color: var(--fg-muted);
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s, border-color 0.15s;
}

.tab:hover { color: var(--fg); }

.tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

main {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.panel { display: none; }
.panel.active { display: block; }

.panel h2 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 600;
}

.panel h3 {
  margin: 24px 0 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.panel > p.muted { margin: 0 0 16px; }

.signal-group {
  margin: 24px 0 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-elev);
}

.signal-group > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.signal-group > summary::-webkit-details-marker { display: none; }

.signal-group > summary::before {
  content: "▶";
  font-size: 10px;
  color: var(--fg-muted);
  transition: transform 0.15s;
  display: inline-block;
}

.signal-group[open] > summary::before { transform: rotate(90deg); }

.signal-group[open] > summary { border-bottom: 1px solid var(--border); }

.signal-group[open] > div { margin: 0 14px; }
.signal-group[open] > div:last-child { margin-bottom: 14px; }
.signal-group[open] > div:first-of-type { margin-top: 12px; }

.error {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
  padding: 10px 14px;
  border-radius: 6px;
  margin: 8px 0;
  font-size: 13px;
}
.error.hidden { display: none; }

.loading {
  color: var(--fg-muted);
  font-style: italic;
  padding: 20px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

th {
  background: var(--bg-elev-2);
  color: var(--fg-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
}

tr:last-child td { border-bottom: none; }

tbody tr:hover { background: rgba(88, 166, 255, 0.05); }

td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

td code, .mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  background: var(--bg-elev-2);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-2);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}

.card .card-title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--fg);
  word-break: break-word;
}

.card .card-meta {
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 8px;
  font-family: ui-monospace, monospace;
  word-break: break-all;
}

.card .card-score {
  display: inline-block;
  background: rgba(126, 231, 135, 0.1);
  color: var(--accent-2);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.empty {
  color: var(--fg-muted);
  font-style: italic;
  padding: 20px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
}

footer {
  padding: 20px 24px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}