:root { --max: 900px; --pad: 1rem; font-size: 16px; }
* { box-sizing: border-box; }
h1 {
text-align: center; font-family: Georgia, serif; color: white; /* rubriker */
}
h2, h3 {
  color: black; /* rubriker */
}
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; line-height: 1.6; }
.site-header, .site-footer { padding: var(--pad); background: darkgreen; }
nav a { margin-right: .75rem; text-decoration: underline; color: lightgrey; }
main { max-width: var(--max); margin: 0 auto; padding: var(--pad); }
button { padding: .6rem 1rem; border: 1px solid #ccc; background: #fff; cursor: pointer; }