:root {
  --bg: #faf7f2; --fg: #2b2722; --muted: #7a7267; --line: #e4ddd2;
  --accent: #7d5a3c;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #201d19; --fg: #e6e0d6; --muted: #99917f; --line: #3a352e;
          --accent: #c9a075; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.1rem; line-height: 1.65;
}
main {
  max-width: 36em; margin: 0 auto; padding: 2.5rem 1.25rem 4rem;
  hyphens: auto; -webkit-hyphens: auto;
}
h1, h2, h3, h4 { line-height: 1.25; font-weight: normal; }
h1 { font-size: 1.9rem; margin: 0 0 .5rem; }
h2 { font-size: 1.55rem; margin: 2.2rem 0 1rem; }
h3 { font-size: 1.2rem; margin: 1.8rem 0 .8rem; font-style: italic; }
p { margin: 0 0 1em; }
hr {
  border: 0; margin: 2.2rem auto; width: 5rem;
  border-top: 1px solid var(--line);
}
blockquote {
  margin: 1.5rem 0; padding-left: 1.1rem;
  border-left: 2px solid var(--accent); font-style: italic;
}
ul { padding-left: 1.4rem; }
li { margin: .35em 0; }
a { color: var(--accent); }
.spacer { height: 1.4rem; }
nav.book {
  max-width: 36em; margin: 0 auto; padding: 1rem 1.25rem;
  display: flex; justify-content: space-between; gap: 1rem;
  font-family: system-ui, sans-serif; font-size: .9rem;
  border-bottom: 1px solid var(--line);
}
nav.book.bottom { border-bottom: 0; border-top: 1px solid var(--line); }
nav.book a { text-decoration: none; color: var(--muted); }
nav.book a:hover { color: var(--accent); }
.toc h2 { margin-top: 2rem; font-size: 1.25rem; }
.toc ul { list-style: none; padding-left: 0; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.cover { text-align: center; padding-top: 3rem; }
.cover .sub { color: var(--muted); font-style: italic; margin-bottom: 3rem; }