* {
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: monospace;

  color: var(--fg);
  background-color: var(--bg);
}

a {
  color: var(--link);
  text-decoration: none;
  font-weight: bold;
}

a:visited {
  color: var(--link-visited);
}

header, footer {
  background-color: var(--bg-light);
  height: 100px;
}

header {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}

header > h1 {
  padding: 0;
  margin: 0;
  text-align: center;
}

header > nav, footer > nav {
  display: flex;
  justify-content: center;
}

footer > nav {
  height: 100%;
  flex-direction: column;
}

footer > nav > a {
  margin: auto;
}

main {
  min-height: calc(100vh - 200px);
}