:root {
  color-scheme: light dark;
  --ink: #2a2420;
  --ink-soft: #5a4c40;
  --paper: #f3eee4;
  --panel: #fffdf8;
  --rule: #c9a24b;
  --rule-soft: #dfcfaa;
  --accent: #7a1f1f;
  --accent-dark: #591414;
  --shadow: rgba(60, 40, 10, 0.18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ece4d6;
    --ink-soft: #cfc3ae;
    --paper: #17130f;
    --panel: #241f18;
    --rule-soft: #4a3f2a;
    --accent: #e2a15c;
    --accent-dark: #f0bd81;
    --shadow: rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Cardo", "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.6;
}

a { color: inherit; }

.reader-header {
  max-width: 1040px;
  margin: 0 auto;
  padding: 32px 20px 22px;
  text-align: center;
}

.reader-header .eyebrow {
  margin: 0 0 6px;
  color: var(--accent-dark);
  font-family: "Cinzel", serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.reader-header h1 {
  margin: 0;
  font-size: clamp(25px, 5vw, 38px);
  line-height: 1.25;
}

.reader-header p:last-child {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.reader {
  width: min(100% - 28px, 1040px);
  margin: 0 auto;
}

.page-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 8px;
  margin: 0 0 16px;
}

.page-nav + .document-page { margin-top: 0; }

.nav-link,
.nav-home {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule-soft);
  border-radius: 4px;
  background: var(--panel);
  color: var(--accent-dark);
  font-family: "Cinzel", serif;
  font-size: 12px;
  letter-spacing: 0.035em;
  text-align: center;
  text-decoration: none;
}

.nav-link:first-child { justify-content: flex-start; padding-left: 16px; }
.nav-link:last-child { justify-content: flex-end; padding-right: 16px; }

.nav-link:hover,
.nav-home:hover {
  border-color: var(--rule);
  background: color-mix(in srgb, var(--panel) 90%, var(--rule));
}

.nav-link.is-disabled {
  color: var(--ink-soft);
  opacity: 0.48;
}

.document-page {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--rule-soft);
  border-radius: 5px;
  background: var(--panel);
  box-shadow: 0 14px 38px var(--shadow);
}

.document-page img {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}

.document-page figcaption {
  padding: 9px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: center;
}

.transcript {
  margin: 28px 0;
  border: 1px solid var(--rule-soft);
  border-radius: 5px;
  background: var(--panel);
}

.transcript summary {
  padding: 14px 18px;
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 700;
}

.transcript pre {
  margin: 0;
  padding: 2px 20px 22px;
  overflow-wrap: anywhere;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.transcript + .page-nav { margin-top: 0; }

.document-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 24px;
  margin: 20px 0 0;
  font-size: 15px;
}

.document-actions a { color: var(--accent-dark); }

footer {
  max-width: 1040px;
  margin: 36px auto 0;
  padding: 0 20px 40px;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: center;
}

@media (max-width: 620px) {
  .reader-header { padding-top: 24px; }
  .reader { width: min(100% - 16px, 1040px); }
  .page-nav { grid-template-columns: 1fr 1fr; }
  .nav-home { grid-column: 1 / -1; grid-row: 1; }
  .document-page { padding: 5px; }
  .transcript pre { padding-inline: 14px; font-size: 15px; }
}

@media print {
  body { background: #fff; }
  .reader-header,
  .page-nav,
  .transcript,
  .document-actions,
  footer,
  .document-page figcaption { display: none; }
  .reader { width: 100%; }
  .document-page { padding: 0; border: 0; box-shadow: none; }
}