html {
  color-scheme: dark;
}

body {
  font-family: system-ui;
  font-size: 1.25rem;
  line-height: 1.25;
}

img,
svg,
video {
  max-width: 100%;
  display: block;
}

main {
  max-width: min(80ch, 100% - 2rem);
  margin-inline: auto;
  white-space: pre-wrap;
}