:root {
  --bg: #f7f2e9;
  --paper: #fffdf8;
  --paper-soft: #f1e6d8;
  --ink: #241b13;
  --muted: #6c5d4d;
  --border: #dac9b4;
  --accent: #315d49;
  --accent-strong: #244534;
  --accent-soft: #dfe9df;
  --rose: #8b4f48;
  --shadow: 0 18px 50px rgba(61, 45, 27, 0.12);
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --sans: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--bg); color: var(--ink); font-size: 18px; }
body {
  margin: 0;
  font-family: var(--serif);
  line-height: 1.75;
  background: linear-gradient(180deg, #fbf8f2 0%, var(--bg) 34rem);
}
a { color: inherit; text-underline-offset: .18em; }
img { display: block; max-width: 100%; height: auto; }
.site-header, main, .site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}
.site-header {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}
.brand {
  display: inline-flex;
  gap: .75rem;
  align-items: center;
  text-decoration: none;
  font-family: var(--sans);
}
.brand-mark {
  width: 3rem;
  height: 3rem;
  display: inline-grid;
  place-items: center;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  font-weight: 800;
  letter-spacing: .04em;
}
.brand strong { display: block; font-size: 1.1rem; line-height: 1.1; }
.brand small { display: block; color: var(--muted); max-width: 24rem; line-height: 1.25; }
.site-nav { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: flex-end; }
.nav-link, .button, .page-pill {
  min-height: 2.55rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .55rem .9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--sans);
  font-size: .92rem;
  font-weight: 700;
  text-decoration: none;
  background: rgba(255,255,255,.66);
}
.nav-link.is-active, .button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.hero {
  min-height: calc(100vh - 112px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding: 1rem 0 4rem;
}
.hero h1, .page-title h1 {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(3rem, 9vw, 7.5rem);
  line-height: .94;
  letter-spacing: 0;
}
.hero p {
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin-top: 1.4rem; }
.hero-cover {
  margin: 0;
  padding: .75rem;
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.hero-cover img { aspect-ratio: 2550 / 3371; object-fit: cover; }
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 4rem;
}
.intro-grid article, .section-card, .toc-panel, .book-tools, .ocr-text {
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: 0 10px 28px rgba(61, 45, 27, 0.06);
}
.intro-grid article, .section-card, .toc-panel, .book-tools { padding: 1.2rem; }
h2, h3 { font-family: var(--sans); line-height: 1.18; }
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}
.section-heading h2, .page-title h1 { margin-bottom: .4rem; }
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.section-card h3 { margin: .1rem 0 .45rem; font-size: 1.2rem; }
.section-card p { margin: .35rem 0 0; }
.section-card-kicker, .eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .72rem;
  font-weight: 800;
  color: var(--rose);
}
.page-title {
  padding: 3rem 0 1.5rem;
  max-width: 820px;
}
.page-title p { color: var(--muted); font-size: 1.1rem; }
.book-tools { margin-bottom: 1.25rem; }
.search-label { display: block; font-family: var(--sans); font-weight: 800; margin-bottom: .45rem; }
.search-input {
  width: 100%;
  min-height: 3rem;
  border: 1px solid var(--border);
  border-radius: .35rem;
  padding: .7rem .9rem;
  font: 1rem var(--sans);
}
.search-results { margin-top: 1rem; display: grid; gap: .75rem; }
.search-hit {
  display: block;
  padding: .85rem;
  background: var(--paper-soft);
  border: 1px solid var(--border);
  text-decoration: none;
}
.book-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}
.toc-panel { position: sticky; top: 1rem; }
.toc-panel ol { padding-left: 1.1rem; margin: 0; }
.toc-panel li { margin: .7rem 0; }
.toc-panel span { display: block; color: var(--muted); font-size: .86rem; font-family: var(--sans); }
.page-list { display: grid; gap: 1rem; }
.page-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: .85rem;
  background: rgba(255,255,255,.62);
  border: 1px solid var(--border);
}
.page-row img { border: 1px solid var(--border); background: white; }
.reading-stack { display: grid; gap: 2rem; }
.reading-page, .single-page {
  display: grid;
  grid-template-columns: minmax(280px, 43%) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}
.reading-page figure, .single-page figure {
  margin: 0;
  background: white;
  border: 1px solid var(--border);
  padding: .5rem;
  position: sticky;
  top: 1rem;
}
.ocr-text { padding: 1.25rem; }
.ocr-text h2 { margin-top: 0; }
.page-pills { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.callout {
  padding: .85rem 1rem;
  border-left: .25rem solid var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong) !important;
}
.site-footer {
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
}
@media (max-width: 860px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .site-nav { justify-content: flex-start; }
  .hero, .intro-grid, .cards, .book-layout, .reading-page, .single-page {
    grid-template-columns: 1fr;
  }
  .hero { min-height: auto; padding-top: 2rem; }
  .toc-panel, .reading-page figure, .single-page figure { position: static; }
  .page-row { grid-template-columns: 92px minmax(0, 1fr); }
}