:root {
  color-scheme: light;
  --wash: #e9efff;
  --sheet: #f9fbff;
  --ink: #283866;
  --blue: #243fa8;
  --blue-soft: #d7e2ff;
  --line: #a4b7e1;
  --display: Cochin, Baskerville, "Palatino Linotype", Palatino, Georgia, serif;
  --text: "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 18px;
  font-family: var(--text);
  background: var(--wash);
  color: var(--ink);
  line-height: 1.6;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 1rem; }
body { margin: 0; }
button, input { font: inherit; }
a { color: var(--blue); text-underline-offset: .2em; text-decoration-thickness: .08em; }
a, button, summary { -webkit-tap-highlight-color: #c7d4ff; }
a:hover { text-decoration-thickness: .14em; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
button, summary { cursor: pointer; }
button { border: 0; border-radius: 0; }
[hidden] { display: none !important; }
h1, h2, h3 { font-family: var(--display); font-weight: 500; line-height: 1.12; text-wrap: balance; }
h1 { font-size: clamp(2.65rem, 5.25vw, 4.6rem); letter-spacing: -.035em; margin: .25em 0 .45em; max-width: 14ch; }
h2 { font-size: clamp(1.8rem, 3.1vw, 2.65rem); letter-spacing: -.02em; margin: 1.65em 0 .55em; }
p { margin: 0 0 1em; }
img { display: block; width: 100%; height: 100%; object-fit: cover; font-size: 1rem; }
figure { margin: 0; }
figcaption { font-size: 1rem; line-height: 1.45; margin-top: .85rem; }
ul, ol { padding-left: 1.35em; }
li { padding-left: .2em; margin-bottom: .65em; }
[data-role="skip"] { position: absolute; z-index: 5; left: 1rem; top: -8rem; min-height: 48px; padding: .65rem 1rem; background: var(--sheet); }
[data-role="skip"]:focus { top: 1rem; }
[data-role="masthead"], [data-role="cluster-nav"], main, [data-role="colophon"] { width: min(1248px, calc(100% - 96px)); margin-inline: auto; }
[data-role="masthead"] { display: flex; align-items: center; justify-content: space-between; padding-block: 1.5rem 1.2rem; gap: 2rem; }
[data-role="notebook-name"] { display: inline-flex; align-items: center; gap: .85rem; text-decoration: none; font-size: 1rem; line-height: 1.2; min-height: 60px; }
[data-role="book-mark"] { width: 3.15rem; height: 3.15rem; display: grid; grid-auto-flow: column; place-content: center; align-items: center; background: var(--blue); color: white; font-family: var(--display); font-size: 1.8rem; }
[data-role="book-mark"] span { font-size: 1.3rem; }
[data-role="masthead-note"] { margin: 0; font-size: 1rem; }
[data-role="cluster-nav"] { display: flex; justify-content: space-between; border-block: 2px solid var(--blue); gap: .25rem; }
[data-role="cluster-nav"] a { display: flex; align-items: center; min-height: 56px; padding: .5rem .7rem; text-decoration: none; font-size: 1rem; }
[data-role="cluster-nav"] a[aria-current] { background: var(--blue-soft); }
[data-role="chapter-opener"] { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 4rem; align-items: center; padding-block: 3.3rem 3.8rem; }
[data-role="guide-label"] { font-size: 1rem; margin: 0 0 .65rem; color: var(--blue); }
[data-role="opening-line"] { max-width: 51ch; font-size: 1.2rem; line-height: 1.45; }
[data-role="round-photo"] { width: 100%; max-width: 390px; justify-self: end; }
[data-role="round-photo"] [data-role="photo-space"] { aspect-ratio: 1; border-radius: 50%; }
[data-role="photo-space"] { background: #d0dcf9; overflow: hidden; }
[data-photo-state="awaiting"] { visibility: hidden; }
[data-role="round-photo"] figcaption { text-align: center; }
[data-role="square-link"], [data-role="back-link"] { display: inline-flex; align-items: center; justify-content: space-between; min-height: 52px; gap: 1.5rem; padding: .6rem 1.1rem; font-size: 1rem; }
[data-role="square-link"] { background: var(--blue); color: var(--sheet); text-decoration: none; }
[data-role="back-link"] { padding-inline: 0; }
[data-role="reading-layout"] { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 3rem; align-items: start; }
[data-role="notebook-leaf"] { min-width: 0; background: var(--sheet); padding: 2rem 2.5rem 2.5rem; }
[data-role="belief-and-answer"] { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 2.25rem; margin-bottom: 2.7rem; }
[data-role="belief-and-answer"] h2 { font-family: var(--text); font-size: 1rem; margin: 0 0 .9rem; letter-spacing: 0; font-weight: 600; line-height: 1.4; }
[data-role="belief"] { padding-right: 1.2rem; border-right: 3px solid var(--blue-soft); }
[data-role="belief"] p { font-family: var(--display); font-size: 1.8rem; line-height: 1.18; text-wrap: balance; }
[data-role="answer"] p { margin: 0; }
[data-role="inline-evidence"] { display: inline-flex; align-items: center; min-height: 44px; padding: .35rem .15rem; font-size: 1rem; line-height: 1.35; overflow-wrap: anywhere; }
[data-role="inline-evidence"] span { padding-left: .35rem; }
[data-role="photo-break"] { width: calc(100% + 5rem); margin-inline: -2.5rem; margin-block: 2rem 2.5rem; }
[data-role="photo-break"] [data-role="photo-space"] { aspect-ratio: 1.8; border-radius: 3.5rem; }
[data-role="photo-break"] figcaption { padding-inline: 2.5rem; }
[data-role="chapter-prose"] { max-width: 65ch; margin-inline: auto; }
[data-role="chapter-prose"] > h2:first-child { margin-top: 0; }
[data-role="question-list"] { margin-block: 1.1rem 1.8rem; }
[data-role="question-list"] li::marker { color: var(--blue); }
[data-role="take-away"] { background: var(--blue-soft); padding: 1.5rem 1.7rem; margin-top: 2.5rem; }
[data-role="take-away"] h2 { font-size: 1.6rem; margin: 0 0 .55rem; }
[data-role="take-away"] p { margin: 0; }
[data-role="evidence-shelf"] { position: sticky; top: 1rem; min-width: 0; }
[data-role="evidence-drawer"] { border-block: 3px solid var(--blue); }
[data-role="evidence-drawer"] summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: .8rem; padding: .75rem 0; min-height: 64px; font-size: 1.05rem; }
[data-role="evidence-drawer"] summary::-webkit-details-marker { display: none; }
[data-role="evidence-drawer"][open] summary span { transform: rotate(90deg); }
[data-role="evidence-inside"] { padding: .5rem 0 1.2rem; }
[data-role="evidence-inside"] p { font-size: 1rem; }
[data-role="evidence-inside"] ul { list-style: none; margin: 0 0 1rem; padding: 0; }
[data-role="evidence-inside"] li { padding: 0; margin: 0; }
[data-role="evidence-inside"] a { display: flex; align-items: center; justify-content: space-between; gap: .5rem; min-height: 48px; padding-block: .5rem; font-size: 1rem; overflow-wrap: anywhere; }
[data-role="close-evidence"] { min-height: 48px; padding: .5rem 1rem; color: var(--sheet); background: var(--blue); }
[data-role="topic-collection"] { margin-top: 4.5rem; }
[data-role="topic-chapter"] { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 4rem; padding-block: 2.5rem 3rem; border-top: 3px solid var(--blue); scroll-margin-top: 1rem; }
[data-role="topic-intro"] h2 { margin: 0 0 .6rem; }
[data-role="topic-intro"] p { max-width: 32ch; }
[data-role="topic-chapter"] ul { list-style: none; padding: 0; margin: 0; }
[data-role="topic-chapter"] li { display: flex; align-items: center; gap: 1rem; border-bottom: 1px solid var(--line); padding: 0; margin: 0; }
[data-role="topic-chapter"] li > span { padding-right: .8rem; color: var(--blue); }
[data-role="chapter-link"] { display: flex; align-items: center; width: 100%; min-height: 64px; padding-block: .75rem; font-family: var(--display); font-size: 1.6rem; line-height: 1.25; text-decoration: none; }
[data-role="nearby-pages"] { margin-top: 3.5rem; padding-block: 1.7rem; border-top: 3px solid var(--blue); }
[data-role="nearby-pages"] p { font-family: var(--display); font-size: 1.65rem; margin: 0 0 1rem; }
[data-role="nearby-pages"] ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
[data-role="nearby-pages"] li { margin: 0; padding: 0; }
[data-role="nearby-pages"] a, [data-role="nearby-pages"] span { display: flex; align-items: center; min-height: 48px; padding-block: .5rem; font-size: 1rem; }
[data-role="nearby-pages"] [aria-current] { font-weight: 600; }
[data-role="colophon"] { border-top: 2px solid var(--blue); margin-top: 3rem; padding-block: 2rem 2.5rem; }
[data-role="colophon"] > p { max-width: 64ch; font-size: 1rem; }
[data-role="colophon"] nav { display: flex; flex-wrap: wrap; gap: .5rem 2rem; }
[data-role="colophon"] a { display: inline-flex; align-items: center; min-height: 48px; font-size: 1rem; padding-block: .5rem; }
[data-role="missing-page"] { padding-block: 4rem 6rem; max-width: 780px; }
@media (min-width: 1450px) {
  [data-role="chapter-opener"] { padding-block: 4.5rem; }
}
@media (max-width: 1050px) {
  [data-role="masthead"], [data-role="cluster-nav"], main, [data-role="colophon"] { width: calc(100% - 56px); }
  [data-role="chapter-opener"] { gap: 2.3rem; }
  [data-role="reading-layout"] { grid-template-columns: minmax(0, 1fr) 210px; gap: 1.5rem; }
  [data-role="notebook-leaf"] { padding: 1.5rem; }
  [data-role="belief-and-answer"] { grid-template-columns: 1fr; gap: 1rem; }
  [data-role="belief"] { padding: 0 0 .7rem; border-right: 0; border-bottom: 3px solid var(--blue-soft); }
  [data-role="belief"] p { max-width: 25ch; }
  [data-role="photo-break"] { width: calc(100% + 3rem); margin-inline: -1.5rem; }
  [data-role="photo-break"] figcaption { padding-inline: 1.5rem; }
}
@media (max-width: 740px) {
  :root { font-size: 18px; }
  [data-role="masthead"], [data-role="cluster-nav"], main, [data-role="colophon"] { width: calc(100% - 36px); }
  [data-role="masthead"] { padding-block: 1rem; }
  [data-role="masthead-note"] { display: none; }
  [data-role="notebook-name"] { font-size: 1rem; }
  [data-role="cluster-nav"] { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
  [data-role="cluster-nav"] a { font-size: 1rem; min-height: 48px; padding: .45rem .4rem; }
  [data-role="cluster-nav"] a:last-child { grid-column: 1 / -1; }
  [data-role="chapter-opener"] { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding-block: 2rem 2.5rem; }
  h1 { font-size: clamp(2.65rem, 11vw, 4rem); max-width: 14ch; }
  [data-role="opening-line"] { font-size: 1.15rem; }
  [data-role="round-photo"] { max-width: 255px; justify-self: center; }
  [data-reading="chapter"] [data-role="round-photo"] { display: none; }
  [data-role="reading-layout"] { display: flex; flex-direction: column; gap: 1.5rem; }
  [data-role="notebook-leaf"] { padding: 1.4rem 1.15rem; width: 100%; }
  [data-role="belief-and-answer"] { margin-bottom: 1.4rem; }
  [data-role="belief"] p { font-size: 1.75rem; }
  [data-role="photo-break"] { width: calc(100% + 2.3rem); margin-inline: -1.15rem; margin-block: 1.5rem 2rem; }
  [data-role="photo-break"] [data-role="photo-space"] { border-radius: 2.5rem; aspect-ratio: 1.45; }
  [data-role="photo-break"] figcaption { padding-inline: 1.15rem; }
  [data-role="chapter-prose"] { overflow-wrap: break-word; }
  [data-role="take-away"] { padding: 1.15rem; }
  [data-role="evidence-shelf"] { position: static; width: 100%; }
  [data-role="topic-collection"] { margin-top: 3rem; }
  [data-role="topic-chapter"] { grid-template-columns: minmax(0, 1fr); gap: 1rem; padding-block: 2rem; }
  [data-role="topic-intro"] p { max-width: none; }
  [data-role="chapter-link"] { font-size: 1.5rem; }
  [data-role="nearby-pages"] ul { grid-template-columns: minmax(0, 1fr); gap: .25rem; }
  [data-role="colophon"] { margin-top: 2rem; padding-bottom: 2rem; }
  [data-role="colophon"] nav { flex-direction: column; align-items: flex-start; gap: .25rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}
@media print {
  :root { background: white; color: black; }
  [data-role="masthead-note"], [data-role="cluster-nav"], [data-role="round-photo"], [data-role="photo-break"], [data-role="evidence-shelf"], [data-role="nearby-pages"], [data-role="topic-collection"], [data-role="colophon"] nav, [data-role="back-link"], [data-role="square-link"] { display: none; }
  [data-role="masthead"], main, [data-role="colophon"] { width: 100%; }
  [data-role="chapter-opener"], [data-role="reading-layout"] { display: block; padding-block: 1rem; }
  h1 { max-width: 22ch; font-size: 2.8rem; }
  [data-role="notebook-leaf"] { padding: 0; }
  [data-role="inline-evidence"] { color: black; }
  [data-role="take-away"] { break-inside: avoid; }
}