:root {
  color-scheme: light;
  font-family: system-ui, sans-serif;
  line-height: 1.65;
  color: #1f2937;
  background: #f3f4f6;
}

body {
  margin: 0;
  padding: 1.5rem 1rem;
}

main {
  max-width: 48rem;
  margin: 0 auto;
  padding: clamp(1rem, 4vw, 3rem);
  background: #fff;
  border-radius: 0.75rem;
  overflow-wrap: anywhere;
}

h1,
h2 {
  line-height: 1.25;
}

h2 {
  margin-top: 2rem;
}

a {
  color: #1746a2;
  text-underline-offset: 0.15em;
}

a:focus-visible {
  outline: 3px solid #1746a2;
  outline-offset: 4px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

nav a {
  padding: 0.25rem 0;
}

nav a[aria-current="page"] {
  font-weight: 700;
  text-decoration-thickness: 0.15em;
}

footer {
  margin-top: 2.5rem;
  border-top: 1px solid #d1d5db;
  padding-top: 1rem;
}