body {
  font-family: Georgia, "Iowan Old Style", Charter, serif;
  font-size: 17px;
  line-height: 1.65;
  max-width: 720px;
  margin: 2em auto;
  padding: 0 1em;
  color: #1a1a1a;
}
h1, h2, h3, h4, .toc h2 {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.25;
}
h1 { font-size: 2em; margin-bottom: 0.2em; }
h2 { font-size: 1.4em; margin-top: 2em; border-bottom: 1px solid #ddd; padding-bottom: 0.2em; }
h3 { font-size: 1.1em; margin-top: 1.5em; }
.meta { color: #666; font-size: 0.9em; margin-top: 0; }
.toc { background: #f6f6f4; padding: 1em 1.5em; border-left: 3px solid #999; margin-bottom: 2em; }
.toc h2 { font-size: 1.1em; border: none; margin-top: 0; padding-bottom: 0; }
.toc ol { margin: 0.5em 0; padding-left: 1.5em; }
.toc li { margin: 0.3em 0; }
.toc a { color: #2a4a6a; text-decoration: none; }
.toc a:hover { text-decoration: underline; }
section { margin-bottom: 2.5em; }
figure { margin: 1.5em 0; }
figure img { max-width: 100%; height: auto; display: block; margin: 0 auto; }
figcaption { font-size: 0.9em; font-style: italic; color: #555; text-align: center; margin-top: 0.5em; }
.sources { background: #f6f6f4; padding: 0.8em 1em; margin-top: 1.5em; font-size: 0.9em; border-left: 3px solid #999; }
.sources h3 { font-size: 0.95em; margin: 0 0 0.5em 0; color: #444; }
.sources ul { margin: 0; padding-left: 1.2em; }
.sources li { margin: 0.2em 0; }
footer { margin-top: 4em; padding-top: 1.5em; border-top: 1px solid #ddd; font-size: 0.9em; color: #555; }
footer h2 { font-size: 1.1em; }
footer ul { padding-left: 1.2em; }
.generated { color: #888; font-size: 0.85em; margin-top: 1.5em; }
.cites { text-align: right; margin: 1em 0 1.5em 0; font-size: 0.85em; color: #555; }
.cites sup { margin-left: 0.15em; }
.cites a { color: #2a4a6a; text-decoration: none; }
.cites a:hover { text-decoration: underline; }
#references { background: #f6f6f4; padding: 1em 1.5em; border-left: 3px solid #999; margin-top: 3em; font-size: 0.95em; }
#references h2 { font-size: 1.2em; margin-top: 0; }
#references ol { padding-left: 2em; }
#references li { margin: 0.4em 0; }
#references li a { color: #2a4a6a; text-decoration: none; margin-right: 0.4em; }
#references li a:hover { text-decoration: underline; }
@media print {
  body { max-width: none; font-size: 11pt; }
  .toc { background: none; }
  .sources { background: none; }
  #references { background: none; }
}


.site-header { background: #2a4a6a; color: white; padding: 0.8em 1em; }
.site-header a { color: white; text-decoration: none; margin-right: 1.2em; }
.site-header a:hover { text-decoration: underline; }
.site-header .brand { font-weight: bold; font-size: 1.1em; }
.site-header nav { display: inline; }
.site-header nav .active { text-decoration: underline; }
.site-footer { background: #f4f2ed; padding: 1.5em 1em; margin-top: 3em;
               font-size: 0.92em; color: #555; }
.site-footer a { color: #2a4a6a; }
.site-footer .ctas { margin: 0.8em 0; }
.site-footer .ctas a { margin-right: 1.5em; }
#search { max-width: 720px; margin: 1em auto; padding: 0 1em; }
.search-unavailable { color: #999; font-style: italic; max-width: 720px;
                      margin: 1em auto; padding: 0 1em; }
.index-list { max-width: 720px; margin: 1em auto; padding: 0 1em; }
.index-list li { margin: 0.6em 0; }
.index-list .qa-meta { color: #888; font-size: 0.88em; }