* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body { margin: 0; }
body > header { display: flex; justify-content: space-between; align-items: center; gap: 2rem; padding: 1.25rem 3rem; }
body > header > a { display: grid; align-content: center; min-height: 3.25rem; }
body > header > p { margin: 0; }
[data-layout] { display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: 5rem; max-width: 86rem; margin: 0 auto; padding: 3rem 3rem 0; }
#index { position: sticky; top: 2rem; align-self: start; }
#index > p { margin: 0 0 1rem; padding-left: .75rem; }
#index nav { display: grid; gap: .35rem; }
#index nav a { display: flex; align-items: center; min-height: 3.25rem; padding: .65rem .75rem; }
[data-reading] { margin: 2rem .75rem 0; }
[data-reading] label { display: block; margin-bottom: .6rem; }
progress { display: block; width: 100%; height: .45rem; }
main { min-width: 0; padding-bottom: 2rem; }
article { max-width: 53rem; }
[data-intro] { margin-bottom: 2.75rem; }
[data-intro] > p:first-child { margin: 0 0 1.3rem; }
h1 { margin: 0 0 1.5rem; max-width: 16ch; }
p { margin: .65rem 0 1rem; }
[data-intro] > p:last-child { max-width: 58ch; margin-bottom: 0; }
article > section { padding: 2rem 0; }
article > section > p { max-width: 65ch; }
h2 { margin: 0 0 1.15rem; }
h3 { margin: 0 0 .75rem; }
[data-shelf] { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; margin-bottom: .75rem; padding: 0 0 2rem; }
[data-shelf] a { position: relative; display: grid; align-content: start; gap: .65rem; min-height: 11rem; padding: 1.25rem; }
[data-shelf] a > span:last-child { align-self: end; margin-top: .5rem; }
[data-shelf] strong { max-width: 16ch; }
[data-evidence] { margin: 1.5rem 0; padding: 1.5rem; max-width: 65ch; }
[data-evidence] small { display: block; margin-bottom: .75rem; }
[data-evidence] p { margin-bottom: .85rem; }
article section > a, [data-evidence] > a { display: flex; align-items: center; gap: .35rem; min-height: 3rem; width: fit-content; max-width: 100%; padding: .55rem 0; }
figure { margin: 1.75rem 0; padding: 1.5rem; }
figure > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
figure section { min-width: 0; padding: 1.15rem 1rem 1.15rem 0; }
figure section:nth-child(even) { padding-left: 1.2rem; padding-right: 0; }
figure section h3 { max-width: 25ch; }
figure section p { margin-bottom: .35rem; }
figure a { display: flex; align-items: center; min-height: 3rem; max-width: 100%; padding: .55rem 0; }
figcaption { padding-top: 1rem; }
article > nav { margin: 2rem 0 3rem; }
article > nav a { display: grid; gap: .5rem; min-height: 6rem; padding: 1.5rem; }
footer { max-width: 53rem; padding-top: 1.8rem; }
footer > p { max-width: 65ch; }
footer nav { display: flex; flex-wrap: wrap; column-gap: 1.75rem; row-gap: .25rem; }
footer nav a { display: flex; align-items: center; min-height: 3rem; padding: .6rem 0; }
[data-skip] { position: absolute; z-index: 5; inset: .75rem auto auto .75rem; padding: .8rem 1rem; transform: translateY(-200%); min-height: 3rem; }
[data-skip]:focus { transform: none; }
[hidden] { display: none !important; }
@media (max-width: 1050px) {
  [data-layout] { gap: 2.5rem; grid-template-columns: 12rem minmax(0, 1fr); padding-left: 2rem; padding-right: 2rem; }
  body > header { padding-left: 2rem; padding-right: 2rem; }
  [data-shelf] { grid-template-columns: 1fr; }
  [data-shelf] a { min-height: 7rem; grid-template-columns: minmax(0, 1fr) auto; }
  [data-shelf] a > span:first-child { grid-column: 1; }
  [data-shelf] strong { max-width: none; grid-column: 1; }
  [data-shelf] a > span:last-child { grid-column: 2; grid-row: 1 / 3; align-self: center; }
}
@media (max-width: 740px) {
  body > header { align-items: start; gap: 1rem; padding: 1rem 1.25rem; }
  body > header > p { max-width: 8ch; text-align: right; padding-top: .3rem; }
  [data-layout] { display: block; padding: 0 1.25rem; }
  #index { position: static; padding: 1.25rem 0 1.6rem; margin-bottom: 1.8rem; }
  #index > p { margin-bottom: .65rem; padding-left: 0; }
  #index nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem .5rem; }
  #index nav a { min-height: 3.25rem; padding: .6rem .55rem; }
  [data-reading] { position: fixed; z-index: 3; left: 0; right: 0; bottom: 0; margin: 0; padding: .45rem 1.25rem .5rem; }
  [data-reading] label { margin-bottom: .25rem; }
  progress { height: .35rem; }
  [data-intro] { margin-bottom: 2rem; }
  article > section { padding-top: 1.8rem; padding-bottom: 1.8rem; }
  [data-shelf] { padding-bottom: 1.8rem; }
  [data-shelf] a { padding: 1rem 1.1rem; min-height: 7.5rem; }
  [data-evidence], figure { padding: 1.15rem; }
  figure > div { grid-template-columns: 1fr; }
  figure section, figure section:nth-child(even) { padding: 1rem 0; }
  article > nav a { padding: 1.2rem; }
  footer nav { display: grid; gap: .15rem; }
  footer { padding-bottom: 3.75rem; }
}
@media print {
  [data-layout] { display: block; padding: 0; }
  body > header { padding: 0 0 1rem; }
  #index, [data-reading], [data-skip], footer nav { display: none !important; }
  article, footer { max-width: none; }
  [data-evidence], figure { break-inside: avoid; }
}