:root {
  color-scheme: light;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  line-height: 1.6;
  color: #18243a;
  background: #f8f7fc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

a {
  color: #5b21b6;
}

a:focus-visible {
  outline: 3px solid #5b21b6;
  outline-offset: 3px;
}

h1,
h2 {
  line-height: 1.25;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
  margin-top: 2.25rem;
  font-size: 1.35rem;
}

h3 {
  margin-top: 1.75rem;
  font-size: 1.1rem;
  line-height: 1.35;
}

h3[id] {
  scroll-margin-top: 1.5rem;
}

p,
li {
  max-width: 75ch;
}

.metadata {
  color: #59647a;
  font-size: 0.95rem;
}

.document {
  background: #fff;
  border: 1px solid #e4dff1;
  border-radius: 16px;
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #59647a;
}