:root {
  color-scheme: light dark;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0 auto;
  max-width: 42rem;
  padding: 1rem;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  overflow-wrap: break-word;
}

header {
  padding: 0.5rem 0 1rem;
}

header a {
  color: inherit;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.2;
}

h2 {
  font-size: 1.25rem;
  line-height: 1.3;
  margin-top: 2rem;
}

h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

ul {
  padding-left: 1.25rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95em;
}

footer {
  border-top: 1px solid currentColor;
  font-size: 0.9rem;
  margin-top: 3rem;
  padding-top: 1rem;
}

footer nav a {
  display: inline-block;
  margin-right: 1rem;
}