/* Full-width colour fields with a shared, comfortable reading inset. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --page-inset: max(1.5rem, calc((100% - 1184px) / 2));
  --corner: 6px;
}

body {
  margin: 0;
}

.guide-header,
.chapter-reading,
.footer-content {
  width: 100%;
  margin-inline: auto;
}

.guide-header,
.journal-lead,
.chapter,
.journal-entries,
.chapter-notes,
.chapter-next,
.footer-content,
.missing-page,
.chapter-reading > .topic-index {
  padding-inline: var(--page-inset);
}

.guide-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.75rem;
}

.guide-name {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 48px;
}

.guide-name::before {
  content: "";
  display: block;
  width: 2rem;
  height: 1.65rem;
  flex: 0 0 2rem;
}

.guide-name span {
  display: block;
}

.guide-intent {
  margin: 0;
  max-width: 30ch;
}

.skip-reading {
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  z-index: 5;
  min-height: 48px;
  padding: .75rem 1rem;
  transform: translateY(-200%);
}

.skip-reading:focus {
  transform: none;
}

.reading-position {
  position: fixed;
  inset: 0 0 auto;
  z-index: 4;
  height: .375rem;
  pointer-events: none;
}

.reading-progress {
  display: block;
  width: 100%;
  height: .375rem;
  border: 0;
  appearance: none;
}

[hidden] {
  display: none !important;
}

.journal-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 19rem;
  align-items: start;
  gap: 4rem;
  padding-block: 3.5rem 4.5rem;
}

.opening-answer,
.chapter-main {
  min-width: 0;
}

.opening-answer h1 {
  margin-block: 1rem 1.75rem;
  max-width: 17ch;
}

.opening-answer > p {
  max-width: 55ch;
}

.chapter-label,
.fact-date {
  margin: 0;
}

.fact-date {
  margin-top: 1.75rem;
}

.topic-index {
  padding: 1.5rem;
  border-radius: var(--corner);
}

.topic-title {
  margin: 0 0 1.5rem;
}

.topic-cluster + .topic-cluster {
  margin-top: 1.25rem;
}

.topic-label {
  margin: 0 0 .375rem;
}

.topic-cluster ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.topic-cluster a {
  display: flex;
  align-items: center;
  gap: .625rem;
  min-height: 48px;
  padding: .625rem .75rem;
  margin-inline: -.75rem;
  border-radius: var(--corner);
}

.topic-cluster a[aria-current="page"]::before {
  content: "";
  width: .5rem;
  height: .5rem;
  flex: 0 0 .5rem;
  border-radius: 50%;
}

.chapter {
  display: grid;
  grid-template-columns: minmax(0, 68ch) minmax(12rem, 16rem);
  justify-content: space-between;
  align-items: start;
  gap: 4rem;
  padding-block: 4.5rem;
}

.chapter-main h2,
.chapter-notes > h2,
.journal-entries > h2 {
  margin: 0 0 1.75rem;
}

.chapter-main h3 {
  margin-block: 2rem .75rem;
}

.chapter-main p,
.term-notes p {
  margin-block: 0 1.25rem;
}

.chapter-main p:last-child,
.term-notes p:last-child {
  margin-bottom: 0;
}

.term-notes {
  padding: 1.5rem;
  border-radius: var(--corner);
}

.term-title {
  margin: 0 0 1.25rem;
}

.term-notes dl {
  margin: 0;
}

.term-notes dt {
  margin-block: 1.5rem .5rem;
}

.term-notes dt:first-child {
  margin-top: 0;
}

.term-notes dd {
  margin: 0;
}

.question-list {
  padding-left: 1.5rem;
  margin-block: 1.5rem;
}

.question-list li {
  padding-left: .375rem;
  margin-bottom: 1.25rem;
}

.source-link,
.reading-link,
.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  min-height: 48px;
  min-width: 44px;
  max-width: 100%;
  padding: .75rem 1rem;
  border-radius: var(--corner);
}

.source-link {
  margin-block: .25rem 1rem;
}

.source-link span:first-child,
.reading-link span:first-child,
.footer-link span:first-child {
  min-width: 0;
}

.source-link span:last-child,
.reading-link span:last-child {
  flex-shrink: 0;
}

.cost-lines {
  margin-block: 1.5rem;
}

.cost-lines > div {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1rem;
}

.cost-lines dt,
.cost-lines dd {
  margin: 0;
}

.urgent-answer {
  padding: 1.5rem;
  border-radius: var(--corner);
}

.urgent-answer h2 {
  margin-bottom: 1rem;
}

.urgent-action {
  padding-top: 1rem;
  margin-top: 1rem !important;
}

.journal-entries,
.chapter-notes {
  padding-block: 4rem;
}

.entry-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.journal-entry {
  display: block;
  min-height: 12rem;
  padding: 2rem;
  border-radius: var(--corner);
}

.journal-entry h3 {
  margin-block: 1rem .75rem;
}

.journal-entry p {
  margin: 0;
  max-width: 45ch;
}

.journal-entry time {
  display: block;
}

.endnote-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem 4rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.endnote-list li {
  min-width: 0;
}

.endnote-list h3 {
  margin: 0 0 .75rem;
}

.endnote-list p {
  margin-block: 0 1rem;
  max-width: 58ch;
}

.chapter-next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 2.5rem;
}

.chapter-next p {
  margin: 0;
}

.footer-content {
  display: grid;
  grid-template-columns: minmax(0, 60ch) auto;
  align-items: start;
  justify-content: space-between;
  gap: 3rem;
  padding-block: 3rem;
}

.footer-content p {
  margin: .75rem 0 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .75rem;
}

.missing-page {
  padding-block: 4rem;
}

.missing-page h1 {
  margin-block: 0 1.5rem;
}

.missing-page p {
  max-width: 55ch;
  margin-block: 0 2rem;
}

.chapter-reading > .topic-index {
  padding-block: 2.5rem;
  border-radius: 0;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--corner);
}

@media (max-width: 1000px) {
  .journal-lead {
    grid-template-columns: minmax(0, 1fr) 17rem;
    gap: 2.5rem;
  }

  .chapter {
    grid-template-columns: minmax(0, 1fr) 14rem;
    gap: 2.5rem;
  }

  .footer-content {
    grid-template-columns: minmax(0, 1fr) 15rem;
  }
}

@media (max-width: 760px) {
  :root {
    --page-inset: 1.25rem;
  }

  .guide-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding-block: 1.5rem;
  }

  .guide-intent {
    max-width: none;
  }

  .journal-lead,
  .chapter,
  .footer-content {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }

  .journal-lead {
    padding-block: 2.5rem;
  }

  .opening-answer h1 {
    max-width: 17ch;
  }

  .chapter,
  .journal-entries,
  .chapter-notes {
    padding-block: 2.75rem;
  }

  .term-notes {
    max-width: 68ch;
  }

  .entry-list,
  .endnote-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .journal-entry {
    min-height: 0;
    padding: 1.5rem;
  }

  .cost-lines > div {
    grid-template-columns: minmax(0, 1fr);
    gap: .375rem;
  }

  .chapter-next {
    flex-direction: column;
    align-items: flex-start;
    padding-block: 2rem;
  }

  .footer-content {
    gap: 1.5rem;
  }

  .footer-content p {
    margin-top: 0;
  }
}

@media print {
  .guide-header,
  .topic-index,
  .reading-position,
  .skip-reading,
  .chapter-next,
  .footer-links {
    display: none;
  }

  .chapter-reading,
  .footer-content,
  .chapter-reading > * {
    width: 100%;
    padding-inline: 0;
  }

  .journal-lead,
  .chapter,
  .entry-list,
  .endnote-list,
  .footer-content {
    display: block;
  }

  .term-notes {
    margin-block: 1.5rem;
  }

  .endnote-list li,
  .journal-entry,
  .urgent-answer {
    break-inside: avoid;
  }

  .source-link {
    padding-inline: 0;
  }

  .endnote-list li {
    margin-bottom: 1.5rem;
  }
}