body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  margin: 0;
  background: #ffffff;
  color: #222;
  line-height: 1.6;
}

header {
  max-width: 900px;
  margin: 60px auto 40px auto;
  padding: 0 20px;
}

h1 {
  font-size: 2.6em;
  margin-bottom: 0.2em;
}

.subtitle {
  font-size: 1.2em;
  color: #444;
}

.affiliation {
  margin-top: 0.4em;
  color: #555;
}

.links a {
  color: #0066cc;
  text-decoration: none;
}

.links a:hover {
  text-decoration: underline;
}

main {
  max-width: 900px;
  margin: auto;
  padding: 0 20px;
}

section {
  margin-bottom: 40px;
}

h2 {
  border-bottom: 2px solid #eee;
  padding-bottom: 6px;
}

.item {
  margin-bottom: 20px;
}

ul {
  padding-left: 20px;
}

footer {
  margin-top: 60px;
  padding: 30px;
  text-align: center;
  color: #777;
  font-size: 0.9em;
  border-top: 1px solid #eee;
}