:root {
  --bg-body: #111827;
  --bg-surface: #1f2937;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border: #374151;
}

.tg-banner {
  background: #082f49;
  border-color: #0c4a6e;
}
.tg-banner h3, .tg-banner p {
  color: #e0f2fe;
}

table th {
  background: #374151;
}

.btn-top {
  color: #111827;
}