header {
  display: flex;
  flex-direction: column;
  margin-top: 2rem;
  margin-bottom: 1rem;
  gap: 3rem;
  justify-content: space-between;
}

h1 {
  margin: 0 2rem;
  font-size: 2rem;
  line-height: 2.25rem;
}

h1 .square {
  display: inline-block;
  color: darkred;
  width: .15em;
  height: .15em;
  margin-inline-start: .15em;
  background: currentColor;
}

h2 {
  margin: 0 2rem;
  font-size: 1.25rem;
  line-height: 2.25rem;
  font-style: italic;
}

nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-left: 5px solid darkred;
  padding-left: 1.8rem;
}

nav > a {
  font-family: var(--sans);
  text-transform: uppercase;
  font-weight: 800;
  font-size: 0.85rem;
}

#copyright {
  margin-inline: 1.75rem;
  margin-top: auto;
  padding-left: 0.25rem;
  padding-right: 0.25rem;
  padding-top: .5rem;
  border-top: 1px solid #ccc;

  font-size: .8rem;
  color: #666;
  font-family: var(--serif);
}