body {
  margin: 0;
  background: #fff;
  color: #111;
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: 17px;
  line-height: 1.55;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 42px 24px;
}

header {
  border-bottom: 1px solid #ddd;
  margin-bottom: 24px;
  padding-bottom: 18px;
}

h1 {
  margin: 0 0 8px;
  font-size: 2.2rem;
  line-height: 1.1;
}

h1 span {
  color: #555;
  font-size: 1.25rem;
  font-weight: normal;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.22rem;
}

.authorship-note {
  margin: -2px 0 12px;
  color: #555;
  font-size: 0.94rem;
}

.research-quote {
  margin: 0;
  padding: 24px 0;
  border-bottom: 1px solid #ddd;
}

.research-quote blockquote {
  margin: 0 0 12px;
  color: #444;
  font-style: italic;
  line-height: 1.65;
}

.research-quote p {
  margin: 0;
}

.research-quote figcaption {
  color: #555;
  font-size: 0.9rem;
}

section {
  border-bottom: 1px solid #ddd;
  padding: 19px 0;
}

section::after {
  clear: both;
  content: "";
  display: block;
}

p,
li {
  margin-bottom: 8px;
}

ul,
ol {
  margin: 0;
  padding-left: 1.3rem;
}

a {
  color: #0645ad;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.links a {
  margin-right: 14px;
}

.last-updated {
  display: inline-block;
  margin: 8px 0 0;
  padding: 6px 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #f7f7f7;
  color: #333;
  font-size: 0.95rem;
  font-weight: bold;
}

.last-updated time {
  color: #111;
}

.profile-photo {
  float: right;
  width: min(280px, 42%);
  margin: 2px 0 14px 24px;
}

.profile-photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #ddd;
  border-radius: 4px;
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  main {
    padding: 28px 18px;
  }

  .profile-photo {
    float: none;
    width: 100%;
    margin: 0 0 14px;
  }
}