:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.22), transparent 34rem),
    radial-gradient(circle at top right, rgba(167, 139, 250, 0.2), transparent 30rem),
    #020617;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.metric-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.82);
  padding: 0.85rem;
}

.metric-card span {
  display: block;
  color: #94a3b8;
  font-size: 0.78rem;
}

.metric-card strong {
  display: block;
  margin-top: 0.25rem;
  overflow: hidden;
  color: #cffafe;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.86rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#event-log::-webkit-scrollbar,
#topology-output::-webkit-scrollbar {
  width: 10px;
}

#event-log::-webkit-scrollbar-thumb,
#topology-output::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.35);
}