:root {
  --paper: #f7f3eb;
  --paper-raise: #fffdf8;
  --ink: #26221c;
  --ink-soft: #5c554a;
  --muted: #7d7668;
  --rule: #d9ceb8;
  --accent: #834430;
  --accent-deep: #6a3526;
  --maroon: #780001;
  --gold: #9a6a2f;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --measure: 40rem;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.75;
}
img { max-width: 100%; height: auto; }
::selection { background: #e3d5bd; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-deep); }

.wrap {
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
}
.skip-link:focus { left: 0; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 1.4rem;
}
.wordmark {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
  text-decoration: none;
  color: var(--ink);
}
.wordmark:hover { color: var(--ink); }
.wordmark-title {
  font-variant: small-caps;
  font-size: 1.18rem;
  letter-spacing: 0.05em;
}
.wordmark-sub {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--muted);
}
.site-nav {
  display: flex;
  gap: 1.4rem;
  font-size: 0.88rem;
}
.site-nav a:hover { color: var(--maroon); }

/* On the home page the header stays out of view while the hero title is
   on screen, and slides in once the reader scrolls past it. */
.js body.home .site-header {
  transform: translateY(-100%);
  transition: transform 0.25s ease;
}
.js body.home.header-visible .site-header {
  transform: translateY(0);
}

/* ---------- home ---------- */

.hero {
  text-align: center;
  max-width: 34rem;
  padding-block: 4.5rem 4rem;
}
.hero-authors {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--maroon);
}
.hero-title {
  margin: 0.7rem 0 1rem;
  font-weight: normal;
  font-size: clamp(2.3rem, 7vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
}
.hero-subtitle {
  margin: 0 auto;
  max-width: 30rem;
  font-style: italic;
  color: var(--ink-soft);
}
.hero-epigraph {
  margin: 2.4rem auto 0;
  max-width: 28rem;
  padding: 0 1rem;
  border: 0;
}
.hero-epigraph p {
  margin: 0;
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
}
.hero-epigraph p + p { margin-top: 0.8rem; }

.title-plate {
  margin: 2.4rem auto 0;
  max-width: 28rem;
  padding: 0.5rem;
  border: 1px solid var(--rule);
  background: var(--paper-raise);
}
.title-plate-img {
  display: block;
  width: 100%;
  filter: sepia(0.18) contrast(1.02);
}

.contents { padding-block: 1rem 4rem; }
.contents-head {
  text-align: center;
  font-size: 0.82rem;
  font-variant: small-caps;
  letter-spacing: 0.32em;
  color: var(--maroon);
  margin: 0 0 2.6rem;
}
.sec { margin-top: 2.4rem; }
.sec-head {
  font-size: 0.8rem;
  font-variant: small-caps;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 0.4rem;
}
.toc {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.toc li { border-bottom: 1px solid var(--rule); }
.toc a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.8rem 0.2rem;
  text-decoration: none;
  color: var(--ink);
}
.toc-label {
  flex: 0 0 auto;
  font-size: 0.78rem;
  font-variant: small-caps;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.toc-title { font-size: 1.02rem; }
.toc a:hover .toc-title,
.toc a:focus .toc-title { color: var(--maroon); }

.download { text-align: center; margin-top: 3.4rem; }
.btn {
  display: inline-block;
  border: 1px solid var(--maroon);
  color: var(--maroon);
  padding: 0.6rem 1.6rem;
  text-decoration: none;
  font-variant: small-caps;
  letter-spacing: 0.1em;
  font-size: 0.92rem;
}
.btn:hover { background: var(--maroon); color: var(--paper); }
.btn-ghost { opacity: 0.85; }
.btn + .btn { margin-left: 0.8rem; }

/* ---------- expanded contents page ---------- */

.prose-toc .contents-block { margin-top: 2.6rem; }
.prose-toc .contents-sec-head {
  font-size: 0.8rem;
  font-variant: small-caps;
  letter-spacing: 0.14em;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.35rem;
  margin: 0 0 1.1rem;
}
.prose-toc .toc-entry { margin: 0 0 1.7rem; }
.prose-toc .toc-entry-title {
  display: block;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  margin: 0 0 0.5rem;
}
.prose-toc .toc-entry-title:hover { color: var(--maroon); }
.toc-expanded {
  list-style: none;
  margin: 0;
  padding: 0;
}
.toc-expanded .toc-h2 { margin: 0.15rem 0; }
.toc-expanded .toc-h2 > a { font-weight: 600; }
.toc-expanded .toc-h3 { margin: 0.05rem 0 0.05rem 1.4rem; font-size: 0.96rem; }
.toc-expanded a { color: var(--ink-soft); text-decoration: none; }
.toc-expanded a:hover, .toc-expanded a:focus { color: var(--maroon); }

/* ---------- article pages ---------- */

.article-wrap { padding-block: 2.6rem 4rem; }
.crumb {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin: 0 0 1.6rem;
}

.prose h1 {
  margin: 1.2rem 0 1.6rem;
  padding-top: 1.3rem;
  border-top: 2px solid var(--maroon);
  font-weight: normal;
  font-size: 2rem;
  line-height: 1.25;
}
.prose h2 {
  margin: 2.6rem 0 0.85rem;
  font-weight: normal;
  font-size: 1.28rem;
  font-variant: small-caps;
  letter-spacing: 0.06em;
}
.prose h3 {
  margin: 2rem 0 0.7rem;
  font-weight: bold;
  font-size: 1.05rem;
}
.prose p { margin: 0 0 1.15rem; }
.prose ul,
.prose ol { margin: 0 0 1.15rem; padding-left: 1.5rem; }
.prose li { margin: 0.35rem 0; }

/* ---------- chapter summary (first list on a chapter page) ---------- */

.article--chapters .prose > ul:first-of-type {
  margin: 0 0 2.3rem;
  padding: 1.35rem 1.5rem 1.15rem 2.4rem;
  background: var(--paper-raise);
  border-top: 3px solid var(--gold);
  border-bottom: 1px solid var(--rule);
  box-shadow: 0 1px 0 rgba(38, 34, 28, 0.05);
}
.article--chapters .prose > ul:first-of-type::before {
  content: "In this chapter";
  display: block;
  margin: 0 0 0.7rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--maroon);
}
.article--chapters .prose > ul:first-of-type > li {
  margin: 0.5rem 0;
  line-height: 1.62;
}
.article--chapters .prose > ul:first-of-type > li::marker { color: var(--gold); }

.prose blockquote {
  margin: 1.7rem 0;
  padding: 0 0 0 1.2rem;
  border-left: 2px solid var(--rule);
  color: var(--ink-soft);
  font-style: italic;
}
.prose blockquote p:last-child { margin: 0; }
.prose blockquote p + p { margin-top: 0.9rem; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5rem 0; }

.prose .footnotes-sep { display: none; }
.prose .footnotes {
  margin-top: 1.4rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--rule);
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--ink-soft);
}
.prose .footnotes-list { margin: 0; padding-left: 1.3rem; }
.prose .footnote-item { margin: 0.6rem 0; }
.prose .footnote-item a { word-break: break-all; }

/* ---------- pager ---------- */

.pager {
  display: flex;
  gap: 1rem;
  margin-top: 3.6rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.pager-item { flex: 1; text-decoration: none; color: var(--ink); }
.pager-next { text-align: right; }
.pager-t {
  display: block;
  font-variant: small-caps;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}
.pager-k {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.pager-item:hover .pager-t { color: var(--maroon); }
.pager-empty { pointer-events: none; }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--rule); padding-block: 1.8rem; }
.site-footer .fine { margin: 0; font-size: 0.82rem; color: var(--muted); }

/* ---------- small screens ---------- */

@media (max-width: 540px) {
  body { font-size: 1rem; }
  .wrap { padding-inline: 1.15rem; }
  .hero { padding-block: 3.2rem 3rem; }
  .site-header .wrap { flex-direction: column; gap: 0.7rem; }
  .prose h1 { font-size: 1.6rem; }
  .pager { flex-direction: column; }
  .pager-next { text-align: left; }
}

/* ---------- print ---------- */

@media print {
  body { background: #fff; color: #000; font-size: 11pt; }
  .site-header .site-nav, .site-footer, .pager, .crumb, .download { display: none; }
  article a { text-decoration: none; }
}