/* Shared reading surfaces inherit each publication's colors and typography. */
.guide-library { margin: 0 0 72px; color: inherit; }
main:not(.shell) .guide-library { margin-inline: 48px; }
.guide-library [hidden] { display: none !important; }
.library-controls { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto; gap: 18px; align-items: end; padding: 24px; border: 1px solid var(--line, #ccd5db); border-radius: 12px; }
.library-controls label { display: block; margin-bottom: 9px; font-size: 14px; font-weight: 600; }
.library-controls input, .library-controls select { width: 100%; min-width: 0; min-height: 48px; padding: 10px 12px; border: 1px solid var(--line, #ccd5db); border-radius: 6px; background: var(--paper, #fff); color: inherit; font: inherit; }
.library-reset { min-height: 48px; padding: 10px 18px; background: transparent; color: inherit; border: 1px solid currentColor; border-radius: 6px; font: inherit; cursor: pointer; }
.library-count { margin: 22px 0; font-size: 14px; }
.library-entry { display: grid; grid-template-columns: 54px minmax(0, 1fr) auto; align-items: start; gap: 26px; border-top: 1px solid var(--line, #ccd5db); padding: 32px 0; }
.library-number { font-size: 30px; font-variant-numeric: tabular-nums; opacity: .65; }
.library-entry h2 { margin: 6px 0 12px; font-size: clamp(23px, 2.3vw, 32px); line-height: 1.25; text-wrap: balance; }
.library-entry h2 a { text-decoration: none; }
.library-entry h2 a:hover { text-decoration: underline; }
.library-entry p { max-width: 72ch; line-height: 1.65; margin: 8px 0; }
.library-entry .library-meta, .library-entry .library-evidence { font-size: 13px; }
.library-meta { font-weight: 600; }
.library-open { display: inline-flex; align-items: center; gap: 12px; min-height: 48px; padding: 10px 0; font-size: 14px; white-space: nowrap; }
.library-empty { padding: 32px; border: 1px dashed currentColor; border-radius: 12px; }
.reading-nav { position: sticky; top: 0; z-index: 8; display: flex; gap: 22px; align-items: center; flex-wrap: wrap; padding: 10px 16px; border-bottom: 1px solid var(--line, #ccd5db); background: var(--paper, #fff); color: inherit; font-size: 14px; }
main:not(.shell) .reading-nav { padding-inline: 22px; }
.reading-nav > a, .reading-nav summary { display: flex; align-items: center; min-height: 44px; cursor: pointer; }
.reading-nav details { margin-left: auto; position: relative; }
.reading-nav summary::after { content: ' +'; margin-left: 10px; }
.reading-nav details[open] summary::after { content: ' −'; }
.reading-nav details > div { position: absolute; top: 100%; right: 0; width: min(380px, calc(100vw - 48px)); max-height: 60vh; overflow-y: auto; padding: 12px; border: 1px solid var(--line, #ccd5db); background: var(--paper, #fff); box-shadow: 0 12px 30px #0002; }
.reading-nav details a { display: block; padding: 12px; line-height: 1.4; }
body:has(.reading-nav) main [id] { scroll-margin-top: 100px; }
.article-layout > * { min-width: 0; }
.guide-library :focus-visible, .reading-nav :focus-visible { outline: 3px solid currentColor; outline-offset: 4px; }
@media (max-width: 650px) {
  .library-controls { grid-template-columns: minmax(0, 1fr); padding: 18px; }
  .library-entry { grid-template-columns: 30px minmax(0, 1fr); gap: 12px; padding: 26px 0; }
  .library-number { font-size: 22px; }
  .library-open { grid-column: 2; padding: 0; }
  .reading-nav { gap: 4px 16px; padding: 6px 0; font-size: 13px; }
  .reading-nav details { margin-left: 0; position: static; }
  .reading-nav details > div { right: 0; left: 0; width: auto; }
  .reading-nav > a { flex-shrink: 0; }
  body:has(.reading-nav) main [id] { scroll-margin-top: 130px; }
}
@media (max-width: 800px) { main:not(.shell) .guide-library { margin-inline: 22px; } }
@media print { .reading-nav, .library-controls { display: none; } }