* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body { margin: 0; min-width: 0; }
img { display: block; max-width: 100%; height: auto; }
button, textarea { max-width: 100%; }
a, button, summary { touch-action: manipulation; }
.skip-link { position: absolute; left: 1rem; top: -8rem; z-index: 10; padding: 1rem; }
.skip-link:focus { top: 1rem; }
.guide-masthead { display: flex; justify-content: space-between; align-items: center; gap: 1rem; max-width: 96rem; margin: auto; padding: 1.2rem 2.25rem; }
.guide-name { display: flex; align-items: center; gap: .8rem; min-height: 44px; }
.archive-mark { display: block; width: 1.6rem; height: 1.9rem; flex-shrink: 0; }
.masthead-links { display: flex; gap: 1rem; align-items: center; }
.masthead-links a { display: inline-flex; min-height: 44px; align-items: center; padding: .4rem .2rem; }
.field-page { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: 3.2rem; max-width: 92rem; padding: 1.5rem 2.25rem 0; margin: auto; align-items: start; }
.reading { grid-column: 2; grid-row: 1; min-width: 0; padding: 1rem 0 0; }
.side-index { grid-column: 1; grid-row: 1; position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow-y: auto; scrollbar-gutter: stable; padding: 1rem .6rem 1rem 0; }
.index-title { margin: .3rem 0 .8rem; padding: 0 .8rem; }
.index-group { margin: 0 0 .8rem; }
.index-group-label { margin: 0; padding: .6rem .8rem .2rem; }
.index-group ul { list-style: none; margin: 0; padding: 0; }
.index-group a { display: flex; align-items: center; min-height: 44px; padding: .6rem .8rem; }
.index-back { display: inline-flex; min-height: 44px; align-items: center; padding: .5rem .8rem; }
.page-head, .idea, .source-note, .next-note, .question-to-keep, .notebook { max-width: 43rem; }
.page-head { margin: 0 0 3rem; }
.page-head p { max-width: 37rem; }
.page-kind { margin: .2rem 0 1rem; }
.hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(13rem, .85fr); gap: 2rem; align-items: center; margin-bottom: 3.7rem; }
.hero .page-head { margin-bottom: 0; }
.archive-photo { margin: 0; padding: .8rem .8rem 0; }
.archive-photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.archive-photo figcaption { padding: .9rem 0 1rem; }
.home-photo { transform: rotate(2deg); margin: 1.5rem .4rem 0 0; }
.idea { margin: 0 0 2.7rem; padding-top: 1.4rem; }
.idea p { margin: .75rem 0; }
.idea ul, .idea ol { padding-left: 1.35rem; }
.idea li { padding-left: .3rem; margin-bottom: .7rem; }
.term-ribbon { display: grid; grid-template-columns: 1fr 1fr; margin: 1.5rem 0 3rem; max-width: 48rem; gap: 1rem 1.4rem; }
.term-entry { padding: 1.2rem 1.3rem; min-height: 44px; display: flex; flex-direction: column; justify-content: center; gap: .35rem; }
.route-list { list-style: none; padding: 0; margin: 1.5rem 0; }
.route-list li { padding: 0; margin: 0; }
.route-list a { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1rem; min-height: 70px; padding: 1rem 0; }
.route-list span { display: block; }
.route-arrow { padding: .5rem; }
.linked-term { display: inline-flex; align-items: center; min-height: 44px; padding: .2rem .3rem .2rem 0; }
.source-note { padding: 1.3rem 1.5rem; margin: 2rem 0; }
.source-note h2 { margin: 0 0 .5rem; }
.source-note p { margin: .4rem 0; }
.source-links { list-style: none; padding: 0; margin: .5rem 0 0; }
.source-links a { display: flex; align-items: center; min-height: 44px; padding: .35rem 0; }
.question-to-keep { padding: 1.4rem 1.5rem; margin: 2rem 0; }
.question-to-keep h2 { margin-top: 0; }
.question-to-keep p { margin: .6rem 0 1rem; }
.note-actions { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
button, .button-link { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: .65rem 1.1rem; cursor: pointer; }
.note-status { display: block; min-height: 1.7em; margin: .7rem 0 0; }
.next-note { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 2.5rem 0; padding-top: 1.3rem; }
.next-note a { min-height: 60px; display: flex; flex-direction: column; justify-content: center; gap: .2rem; padding: .6rem 0; }
.next-note a:last-child { text-align: right; }
.notebook { padding: 1.5rem; margin: 3rem 0; }
.notebook h2 { margin-top: 0; }
.notebook label { display: block; margin-bottom: .5rem; }
.notebook textarea { display: block; width: 100%; min-height: 18rem; resize: vertical; padding: 1rem; margin-bottom: 1rem; }
.reading-photo { max-width: 43rem; margin: 2.5rem 0; }
.reading-photo img { aspect-ratio: 2 / 1; }
.guide-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin: 2rem auto 0; padding: 1.7rem 2.25rem; max-width: 96rem; }
.guide-footer p { max-width: 45rem; margin: 0; }
.guide-footer a { display: inline-flex; min-height: 44px; align-items: center; padding: .4rem 0; }
.source-shelf { max-width: 43rem; }
.source-shelf .idea { margin-bottom: 1.5rem; }
[hidden] { display: none !important; }
@media (min-width: 1600px) { .field-page { gap: 5rem; } }
@media (max-width: 1150px) {
  .field-page { grid-template-columns: 13.5rem minmax(0, 1fr); gap: 2rem; }
  .hero { grid-template-columns: 1fr; gap: .5rem; }
  .home-photo { max-width: 26rem; margin: 1.5rem 1rem 0 auto; }
}
@media (max-width: 780px) {
  .guide-masthead { padding: .85rem 1.2rem; align-items: flex-start; gap: .5rem; }
  .guide-name { max-width: 12rem; }
  .masthead-links { gap: .35rem; flex-direction: column; align-items: flex-end; }
  .masthead-links a { min-height: 44px; }
  .field-page { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding: 1rem 1.2rem 0; }
  .reading { grid-column: 1; grid-row: 1; padding: .5rem 0 0; }
  .side-index { grid-column: 1; grid-row: 2; position: static; max-height: none; overflow: visible; padding: 1.2rem .7rem; }
  .page-head { margin-bottom: 2.2rem; }
  .hero { margin-bottom: 2.8rem; }
  .home-photo { max-width: 23rem; width: calc(100% - 1rem); margin: 1.6rem .4rem .5rem; }
  .term-ribbon { grid-template-columns: 1fr; gap: .8rem; }
  .idea { margin-bottom: 2rem; }
  .source-note, .question-to-keep, .notebook { padding: 1.2rem; }
  .next-note { gap: 1.2rem; }
  .guide-footer { padding: 1.6rem 1.2rem; margin-top: 1.5rem; }
}
@media print {
  .guide-masthead, .side-index, .guide-footer, .next-note, .question-to-keep, .note-actions, .note-status, .archive-photo, .skip-link { display: none; }
  .field-page { display: block; padding: 0; }
  .reading { width: 100%; }
  .notebook { break-inside: avoid; }
  .notebook textarea { min-height: 22rem; }
}