:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --warm: #f0883e;
  --cold: #79c0ff;
  --rain: #58a6ff;
  --good: #3fb950;
  --bad: #f85149;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

header h1 { margin: 0; font-size: 1.3rem; }

#status {
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

#status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--good);
  display: inline-block;
}

#status.stale .dot { background: var(--bad); }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}

.card .label {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.card .value {
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.1;
}

.card .sub {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

.tabs {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.tabs button {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
}

.tabs button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #04101f;
  font-weight: 600;
}

.chart-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.chart-panel h2 {
  margin: 0 0 0.75rem 0;
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 600;
}

.chart-panel canvas { max-height: 260px; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 2rem 1rem;
}