body {
  background: #f7f8f3;
  color: #1b241b;
  font-family: Georgia, serif;
  max-width: 920px;
  margin: 35px auto;
  padding: 0 22px;
  line-height: 1.75;
}

header {
  border-bottom: 3px double #6f8a68;
  margin-bottom: 20px;
  padding: 22px 0 16px;
}

h1 {
  color: #102015;
  letter-spacing: 2px;
  margin-bottom: 6px;
  font-size: 2.2em;
}

h2 {
  color: #2f5c3a;
  border-bottom: 1px solid #b7c9b0;
  padding-bottom: 6px;
}

a {
  color: #2d6b3b;
  font-weight: bold;
}

a:hover {
  color: #6d8f5d;
}

.tagline {
  color: #5f765b;
  font-style: italic;
}

nav {
  margin: 20px 0;
  padding: 12px 0;
  border-top: 1px solid #b7c9b0;
  border-bottom: 1px solid #b7c9b0;
}

nav a {
  margin-right: 18px;
  text-decoration: none;
}

section {
  border: 1px solid #b7c9b0;
  border-left: 5px solid #6f8a68;
  padding: 22px;
  margin: 24px 0;
  background: #ffffff;
  box-shadow: 4px 4px 0 #e0eadb;
}

.exhibit {
  border-left: 8px solid #4f744a;
  background: #ffffff;
}

.label {
  font-size: 0.9em;
  color: #5e6f5b;
  text-transform: uppercase;
  letter-spacing: 2px;
}

footer {
  border-top: 1px solid #b7c9b0;
  margin-top: 35px;
  padding-top: 12px;
  color: #5f765b;
  font-size: 0.9em;
}

.revision {
  color: #7b342c;
  border-left: 4px solid #7b342c;
  background: #fff4ef;
  padding: 10px 12px;
  margin: 18px 0;
  font-style: italic;
}

figure {
  text-align: center;
  margin: 28px 0;
}

img {
  max-width: 100%;
  height: auto;
  border: 1px solid #b7c9b0;
  background: #ffffff;
  padding: 6px;
  box-sizing: border-box;
}

figcaption,
.caption {
  color: #5e6f5b;
  font-size: 0.9em;
  font-style: italic;
}

blockquote {
  border-left: 4px solid #6f8a68;
  background: #f0f6ee;
  padding: 12px 16px;
  margin: 20px 0;
  font-style: italic;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
  margin: 20px 0;
}

.cat-grid img {
  width: 100%;
  max-width: 150px;
  margin: auto;
}

article img {
  max-width: 100%;
  height: auto;
}