/* Layout: a folio, a chapter drawer, and space for handwritten answers. */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 1rem; }
body { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
button, textarea, input { font: inherit; }
button, summary, label { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
.masthead, .drawer, .chapter, .colophon { width: min(100% - 6rem, 74rem); margin-inline: auto; }
.masthead { display: flex; justify-content: space-between; align-items: center; gap: 2rem; padding-block: 2rem 1.5rem; }
.masthead__name { display: inline-flex; flex-direction: column; justify-content: center; min-height: 44px; padding-block: .25rem; }
.masthead__running { max-width: 19rem; margin: 0; }
.drawer__handle { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.75rem; padding: .75rem 0; cursor: pointer; }
.drawer__handle::-webkit-details-marker { display: none; }
.drawer__handle::marker { content: ''; }
.drawer__inside { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 2rem; padding: 1.5rem 0 2rem; }
.drawer__group { min-width: 0; }
.drawer__group + .drawer__group { padding-left: 2rem; }
.drawer__group-title { min-height: 44px; padding-block: .5rem; cursor: pointer; }
.drawer__list { list-style: none; padding: 0; margin: .5rem 0 0; }
.drawer__link { display: flex; align-items: center; min-height: 44px; padding: .6rem .25rem; }
.chapter { padding-bottom: 3.5rem; }
.chapter__opening { padding-block: 3.5rem 2.75rem; }
.chapter__opening--illustrated { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: center; gap: 3rem; }
.chapter__running-head { margin: 0 0 1.25rem; }
.chapter__title { max-width: 23ch; margin: 0 0 1.5rem; }
.chapter__lead { max-width: 57ch; margin: 0; }
.chapter__contents { max-width: 51rem; margin: 3rem 0 0 4rem; padding-left: 2rem; }
.chapter__prose, .chapter__asof, .endnotes__context { max-width: 66ch; margin-block: 0 1.25rem; }
.chapter__heading { max-width: 32ch; margin: 2.75rem 0 1.25rem; }
.chapter__subheading { margin: 2.25rem 0 1rem; }
.opening-note .chapter__heading { margin-top: 0; }
.plate { margin: 0; min-width: 0; }
.plate__drawing { width: 100%; }
.plate__caption { margin-top: .75rem; }
.worksheet { min-width: 0; margin: 2.25rem 0; padding: 1.25rem 1.5rem 1.5rem; }
.worksheet__legend { max-width: 100%; padding: .25rem .5rem; }
.worksheet__list { list-style: none; margin: 0; padding: 0; }
.worksheet__item + .worksheet__item { margin-top: .5rem; }
.worksheet__check { display: flex; align-items: flex-start; gap: 1rem; min-height: 44px; padding-block: .6rem; cursor: pointer; }
.worksheet__box { flex: 0 0 44px; width: 44px; height: 44px; margin: 0; }
.worksheet__entry + .worksheet__entry { margin-top: 1.5rem; }
.worksheet__label { display: block; min-height: 44px; padding-block: .5rem; }
.worksheet__answer { display: block; width: 100%; max-width: 100%; min-height: 7rem; padding: .75rem; resize: vertical; }
.worksheet__paper-answer { display: none; }
.chapter-routes { margin-block: 2.25rem; }
.chapter-routes__link { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.5rem; padding: .8rem .25rem; }
.endnotes { margin-top: 3rem; padding-top: .5rem; }
.endnotes__list { margin: 0; padding-left: 1.5rem; }
.endnotes__item { padding-left: .25rem; margin-bottom: 1rem; }
.endnotes__link { display: inline-flex; align-items: center; gap: .35rem; min-height: 44px; padding-block: .4rem; }
.endnotes__context { margin-bottom: .5rem; }
.print-tools, .turn { max-width: 49rem; margin: 2.5rem 0 0 6rem; padding-top: 1.5rem; }
.print-tools { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; }
.print-tools__note { flex: 1 1 19rem; margin: 0; max-width: 34ch; }
.print-tools__button { min-height: 48px; padding: .65rem 1.25rem; cursor: pointer; }
.turn { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem; }
.turn__link { display: inline-flex; align-items: center; gap: 1rem; min-height: 48px; padding-block: .65rem; }
.colophon { display: grid; grid-template-columns: 1.2fr 1fr; align-items: start; gap: 3rem; padding-block: 2rem 3rem; }
.colophon__line { max-width: 49ch; margin: .5rem 0 0; }
.colophon__nav { display: flex; flex-direction: column; align-items: flex-start; }
.colophon__link { display: inline-flex; align-items: center; min-height: 48px; padding-block: .6rem; }
.folio__skip { position: absolute; left: 1rem; top: .5rem; z-index: 5; padding: .8rem 1rem; min-height: 48px; transform: translateY(-200%); }
.folio__skip:focus { transform: translateY(0); }
@media (max-width: 900px) {
  .masthead, .drawer, .chapter, .colophon { width: min(100% - 3rem, 74rem); }
  .chapter__opening--illustrated { gap: 1.5rem; }
  .chapter__contents { margin-left: 0; padding-left: 1.5rem; }
  .print-tools, .turn { margin-left: 1.5rem; }
}
@media (max-width: 640px) {
  .masthead, .drawer, .chapter, .colophon { width: calc(100% - 2rem); }
  .masthead { padding-block: 1.25rem; }
  .masthead__running { display: none; }
  .drawer__inside { grid-template-columns: 1fr; gap: 1rem; }
  .drawer__group + .drawer__group { padding: .75rem 0 0; border-left: 0; }
  .chapter__opening { padding-block: 2rem; }
  .chapter__opening--illustrated { grid-template-columns: 1fr; gap: 1.75rem; }
  .plate { max-width: 28rem; }
  .chapter__contents { margin-top: 2rem; padding-left: 0; border-left: 0; }
  .worksheet { padding: .75rem .9rem 1rem; }
  .worksheet__check { gap: .75rem; }
  .print-tools, .turn { margin-left: 0; }
  .colophon { grid-template-columns: 1fr; gap: 1rem; }
}
@page { margin: 16mm; }
@media print {
  .masthead, .chapter, .colophon { width: 100%; }
  .drawer, .masthead__running, .folio__skip, .print-tools, .turn, .chapter-routes, .colophon__nav, .plate { display: none; }
  .masthead { padding: 0 0 1rem; }
  .chapter { padding: 0; }
  .chapter__opening, .chapter__opening--illustrated { display: block; padding-block: 1.25rem; }
  .chapter__contents { max-width: none; margin: 1.5rem 0 0; padding: 0; border: 0; }
  .worksheet { margin-block: 1.5rem; padding: .75rem 1rem; }
  .worksheet__entry { break-inside: avoid; }
  .worksheet__item, .endnotes__item { break-inside: avoid; }
  .chapter__heading, .chapter__subheading, .worksheet__legend { break-after: avoid; }
  .folio--print-ready .worksheet__answer { display: none; }
  .folio--print-ready .worksheet__paper-answer { display: block; white-space: pre-wrap; overflow-wrap: anywhere; min-height: 4.5rem; padding: .5rem; border-bottom: 1px solid; }
  .worksheet__box { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .colophon { display: block; padding-block: 1rem 0; margin-top: 2rem; }
}