body {
  color: #212529;
  background: #fff;
  font-family: sans-serif;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}

a {
  color: #007bff;
  text-decoration: none;
}

a:hover {
  color: #0056b3;
  text-decoration: underline;
}

ul.links {
  list-style-type: none;
  display: flex;
  align-items: stretch;
  justify-content: space-evenly;
}

hr {
  color: #fff;
}

header {
  text-align: center;
}

article {
  max-width: 720px;
  margin: 0 auto;
}

footer {
  text-align: center;
  margin-bottom: 1rem;
}

.post h3 {
  margin-bottom: 0;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #212529;
    color: #f8f9fa;
  }
  a {
    color: #3395ff;
  }
  hr {
    color: #212529;
  }
}