:root {
  color-scheme: dark;
}

html,
body {
  margin: 0;
  height: 100%;
  background: #111318;
  color: #e8e8ef;
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
}

canvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

.overlay {
  position: fixed;
  inset: 0 0 auto 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  pointer-events: none;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

.overlay h1 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 600;
}

.overlay p {
  margin: 0;
  max-width: 32rem;
  font-size: 0.85rem;
  opacity: 0.8;
}

.overlay code {
  font-size: 0.85em;
}

.overlay a {
  pointer-events: auto;
  flex: none;
  color: #9ecbff;
  text-decoration: none;
  white-space: nowrap;
}

.overlay a:hover {
  text-decoration: underline;
}