body {
  font-family: Georgia, serif;
  background: #ffffff;
  color: #111111;
  max-width: 700px;
  margin: auto;
  padding: 2em 1em;
  line-height: 1.6;
  font-size: 18px;
}

h1, h2, h3 {
  font-weight: normal;
  line-height: 1.3;
}

nav {
  margin-bottom: 2em;
}

nav a {
  margin-right: 1em;
  text-decoration: none;
  color: #0645ad;
}

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

a {
  color: #0645ad;
}

a:hover {
  text-decoration: underline;
}

article {
  margin-bottom: 4em;
}

article h1 {
  font-size: 1.8em;
  margin-bottom: 0.3em;
}

article em {
  color: #555;
  font-size: 0.9em;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  margin-bottom: 1em;
}

ul li small {
  color: #666;
  font-size: 0.85em;
}

#about {
  margin-top: 4em;
  border-top: 1px solid #ddd;
  padding-top: 2em;
}

footer {
  margin-top: 3em;
  font-size: 0.8em;
  color: #888;
  text-align: center;
}

body.dark-mode {
  background: #1a1a1a;
  color: #dddddd;
}

body.dark-mode a {
  color: #9ecbff;
}

body.dark-mode nav a {
  color: #9ecbff;
}

body.dark-mode article em,
body.dark-mode ul li small {
  color: #aaa;
}