body {
  margin: 0;
  padding: 0;
  color: #1a1a1a;
  background: #fff;
  font-family: system-ui, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 70ch;
  margin: 2em auto;
  padding: 0 1em;
}

h1 {
  margin: 0 0 0.2em;
  font-size: 2em;
  line-height: 1.15;
}

h2 {
  margin-top: 2em;
  line-height: 1.25;
}

p {
  margin: 1em 0;
}

a {
  color: #0055aa;
}

.site-nav {
  margin-bottom: 2em;
}

.site-nav a {
  margin-right: 1em;
}

.tagline {
  margin-top: 0;
  color: #555;
  font-size: 1.15em;
}

.updated {
  margin-top: 0;
  color: #555;
}