/* Original 960 × 600 presentation pages, uncropped and separated as sheets. */
.chapters { color: var(--ink); background: #ded5e2; display: grid; gap: 54px; padding: 42px clamp(12px, 3vw, 48px) 72px; }
.presentation-heading, .plan-page { width: 100%; max-width: 1400px; margin: 0 auto; min-width: 0; }
.presentation-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; font-size: 13px; }
.presentation-heading p { margin: 0; font-size: 11px; font-weight: 700; letter-spacing: .14em; }
.presentation-heading p span { margin-left: 18px; font-weight: 400; letter-spacing: .02em; }
.presentation-heading a { text-decoration: none; }
.presentation-heading .presentation-context { flex-basis: 100%; font-size: 12px; line-height: 1.5; font-weight: 400; letter-spacing: normal; color: var(--muted); }
.presentation-context a { text-decoration: underline; }
.plan-page { scroll-margin-top: 8px; }
.plan-page-caption { display: flex; align-items: baseline; gap: 14px; padding: 0 2px 12px; color: var(--muted); }
.plan-page-caption > span:first-child { flex: 0 0 auto; font-size: 10px; font-weight: 700; letter-spacing: .1em; font-variant-numeric: tabular-nums; }
.plan-page-caption h2 { margin: 0; font: 400 13px/1.4 var(--sans); color: var(--purple); }
.plan-page-new { margin-left: auto; font-size: 10px; white-space: nowrap; }
.plan-page-art { display: block; background: var(--paper); box-shadow: 0 2px 4px #2b203510, 0 12px 35px #2b203516; }
.plan-page-art img { display: block; width: 100%; height: auto; aspect-ratio: 8 / 5; object-fit: contain; }
.plan-page-tools { position: relative; margin-top: 12px; font-size: 12px; color: var(--muted); }
.plan-page-tools summary { width: max-content; max-width: calc(100% - 130px); padding: 2px 0; }
.plan-page-expand { position: absolute; top: 2px; right: 0; text-decoration: none; }
.plan-page-text { padding: 24px; margin-top: 16px; background: var(--paper); border: 1px solid var(--line); }
.plan-page-text pre { margin: 0 0 24px; font: 16px/1.6 var(--sans); white-space: pre-wrap; overflow-wrap: anywhere; color: var(--ink); }
.plan-page-text ul { padding-left: 20px; font-size: 14px; overflow-wrap: anywhere; }
.plan-page-text li { margin: 8px 0; }
@media (min-width: 900px) and (min-height: 600px) {
  .plan-page { max-width: min(1400px, calc(160svh - 304px)); }
}
@media (max-width: 600px) {
  .chapters { gap: 34px; padding-top: 28px; padding-bottom: 40px; }
  .presentation-heading { flex-wrap: wrap; gap: 10px; }
  .presentation-heading p span { margin-left: 10px; }
  .plan-page-caption { gap: 10px; padding-bottom: 8px; }
  .plan-page-caption h2 { font-size: 12px; }
  .plan-page-text { padding: 18px; }
}
@media print {
  .chapters { display: block; padding: 0; background: white; }
  .presentation-heading, .plan-page-caption, .plan-page-tools { display: none; }
  .plan-page { max-width: none; break-inside: avoid; break-after: page; }
  .plan-page-art { box-shadow: none; }
}