:root {
  color-scheme: light;
  --text: #1f1d1a;
  --muted: #4d4943;
  --background: #faf7f1;
  --surface: #ffffff;
  --border: #ddd6ca;
  --link: #1d4ed8;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  line-height: 1.6;
}

.site-header,
main,
.site-footer {
  width: 100%;
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--link);
  text-underline-offset: 0.15em;
}

a[aria-current='page'] {
  color: var(--text);
  font-weight: 600;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

.skip-link:focus {
  top: 1rem;
}

main {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.375rem;
  line-height: 1.3;
  margin: 2rem 0 0.75rem;
}

h3 {
  font-size: 1.125rem;
  margin: 1.5rem 0 0.5rem;
}

address {
  font-style: normal;
}

li + li {
  margin-top: 0.375rem;
}

.site-footer {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9375rem;
}

.site-footer p {
  margin: 0 0 0.25rem;
}

.site-footer nav {
  margin-top: 1rem;
}