body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.6;
  color: #222222;
  background: #ffffff;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

header {
  margin-bottom: 40px;
}

h1,
h2 {
  font-weight: 400;
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

p {
  margin: 1rem 0;
}

.subtitle,
.paper-meta {
  color: #555555;
}

.subtitle {
  margin-top: 0.5rem;
}

.intro {
  max-width: 42rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 1.25rem;
}

.links a,
a {
  color: #0f4c5c;
}

section {
  border-top: 1px solid #d8d8d8;
  padding-top: 24px;
}

ol {
  margin: 0;
  padding-left: 24px;
}

li + li {
  margin-top: 20px;
}

.paper-title {
  font-style: italic;
}

@media (max-width: 640px) {
  body {
    font-size: 17px;
  }

  main {
    padding: 32px 16px 48px;
  }

  h1 {
    font-size: 2.1rem;
  }
}