:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --muted: #4a4a4f;
  --accent: #0b5cad;
  --rule: #d9d9de;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background: #ffffff;
}

body {
  margin: 0;
}

a {
  color: var(--accent);
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.site-header,
main,
.site-footer {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  padding-top: 1.25rem;
}

.brand {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

main {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
}

h1 {
  font-size: 1.875rem;
  line-height: 1.25;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.5rem;
}

p,
ul {
  margin: 0 0 1rem;
}

ul {
  padding-left: 1.25rem;
}

address {
  font-style: normal;
}

.site-footer {
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
  padding-bottom: 2rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-bottom: 1rem;
}

.domain {
  margin: 0;
}

@media (min-width: 40rem) {
  h1 {
    font-size: 2.25rem;
  }
}