body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

main, header, footer {
  --max-width: 960px;
  --padding: 8px;

  width: min(var(--max-width), 100% - var(--padding) * 2);
  margin-inline: auto;
  margin-block: var(--padding);
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: var(--padding);
}

header, footer {
  text-align: center;
}

nav ul {
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}

hr {
  border: none;
  width: 80%;
  margin-inline: auto;
  border-top: 1px solid #ccc;
}