/* Basic Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: sans-serif;
  line-height: 1.5;
  color: #222;
}

/* Sticky top navigation */
header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid #ddd;
  padding: 1rem;
  display: flex;
  justify-content: center;
  gap: 2rem;
}

header a {
  color: #222;
  text-decoration: none;
  font-weight: 600;
}

header a:hover {
  text-decoration: underline;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

section {
  padding: 4rem 0;
  scroll-margin-top: 70px;
}

section h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

section p {
  max-width: 60ch;
  margin-bottom: 1rem;
}