/* Railroad Network docs: a light touch over mdBook's default theme.
   Goal: comfortable long-form reading, and callouts that read as callouts. */

:root {
  --content-max-width: 780px;
}

.content main {
  line-height: 1.65;
}

.content h1 {
  margin-top: 1.2em;
}

.content h2 {
  margin-top: 2em;
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--table-border-color);
}

/* Blockquotes are our callouts. Start one with a bold lead such as
   **Warning.** or **Tip.** and it reads as a labelled note. */
.content blockquote {
  margin: 1.4em 0;
  padding: 0.8em 1.2em;
  border-left: 4px solid var(--links);
  border-radius: 4px;
  background: var(--quote-bg);
  border-top: none;
  border-bottom: none;
}

.content blockquote p:first-child {
  margin-top: 0;
}

.content blockquote p:last-child {
  margin-bottom: 0;
}

/* Tables: a little more air. */
.content table td,
.content table th {
  padding: 0.5em 0.9em;
}

/* Unwritten pages: a "[Title]()" entry in SUMMARY.md renders as a bare
   <span> inside the link wrapper, where a written page renders an <a>. */
.chapter .chapter-link-wrapper > span {
  opacity: 0.55;
}

.chapter .chapter-link-wrapper > span::after {
  content: " · page not yet written";
  font-size: 0.8em;
}