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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  line-height: 1.6;
  padding: 1rem;
  background-color: #fafafa;
  color: #222;
}

header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #ccc;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

header p {
  color: #555;
  font-style: italic;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: #007acc;
  font-weight: 500;
}

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

main {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #333;
}

p, li, dd {
  margin-bottom: 1rem;
  font-size: 1rem;
}

ul, dl {
  margin-left: 1.25rem;
}

dl dt {
  font-weight: bold;
  margin-top: 1rem;
}

footer {
  text-align: center;
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #ccc;
  font-size: 0.875rem;
  color: #666;
}

footer a {
  color: #666;
  text-decoration: none;
}

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

@media (max-width: 600px) {
  header h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  main {
    padding: 1.5rem 1rem;
  }

  p, li, dd {
    font-size: 0.95rem;
  }
}