:root { color-scheme: light dark; }
body {
  margin: 0 auto;
  max-width: 42rem;
  padding: 2.5rem 1rem 4rem;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow-wrap: anywhere;
}
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 .75rem; }
h2 { font-size: 1.2rem; line-height: 1.3; margin: 2.25rem 0 .5rem; }
p, li { margin: .5rem 0; }
ul { padding-left: 1.25rem; }
dt { font-weight: 600; margin-top: 1rem; }
dd { margin: .25rem 0 0; }
.liten { font-size: .9rem; opacity: .75; }
footer { margin-top: 3rem; }