/* Accessible navigation, catalog and reading layer. Shared design tokens come from styles.css. */
[hidden] { display: none !important; }
html { scroll-behavior: auto; }
[id] { scroll-margin-top: calc(var(--header-height) + 20px); }
.skip-link { position: fixed; top: 8px; left: 12px; z-index: 2000; padding: 12px 18px; background: var(--ink); color: white; border-radius: 6px; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.no-script-nav { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.footer-heading { font-size: 1rem; margin-bottom: 16px; }
.footer-col span { display: block; color: var(--text-secondary); margin-bottom: 10px; font-size: .85rem; }
.product-card .icon-wrap img { width: 32px; height: 32px; }
.product-card.is-developing { cursor: default; }
.home-quicklinks { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 22px; font-size: .86rem; color: var(--accent); }
.home-quicklinks a { text-decoration: underline; text-underline-offset: 4px; }
.featured-products-note { max-width: 1200px; margin: 24px auto 0; padding: 0 20px; color: var(--text-secondary); }
.featured-products-note a { color: var(--accent); text-decoration: underline; }
.reading-routes { max-width: 1200px; margin: 0 auto 26px; padding: 0 20px; }
.reading-routes h2 { font-size: 1.15rem; margin-bottom: 12px; }
.reading-route-list { display: flex; flex-wrap: wrap; gap: 10px; }
.reading-route-list a { padding: 9px 14px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; font-size: .9rem; }
.book-search { max-width: 1200px; padding: 0 20px; margin: 0 auto 24px; }
.book-search label { display: block; font-weight: 600; margin-bottom: 8px; }
.book-search-fields { display: flex; gap: 10px; align-items: stretch; }
.book-search input { min-width: 0; flex: 1; padding: 13px 14px; font: inherit; color: var(--ink); background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; }
.book-search button, .reader-toolbar button, .reader-panel button, .reading-resume button { padding: 10px 14px; font: inherit; color: var(--accent); background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; cursor: pointer; }
.book-search button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.search-help { font-size: .82rem; color: var(--text-secondary); margin-top: 8px; }
.archive-catalog { list-style: none; padding: 0; }
.archive-row.book-card { position: relative; }
.archive-title a::after { content: ''; position: absolute; inset: 0; }
.archive-title a:focus-visible { outline: none; }
.archive-row:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }
.archive-date { font-size: .75rem; color: var(--text-secondary); display: block; margin-top: 7px; }
.empty-state.visible { display: block; }
.empty-state { text-align: center; }
.book-reader-page { background-image: none; }
.book-reader-page main { padding-bottom: 100px; }
.book-reader-page .book-hero .hero-content { max-width: 100%; text-align: left; }
.book-lead { text-align: left; }
.book-maintenance-note { color: var(--text-secondary); font-size: .78rem; line-height: 1.7; margin: 6px 0 14px; }
.book-maintenance-note a { color: var(--accent); text-decoration: underline; }
.book-prose { font-size: var(--reader-font-size, 18px); line-height: 1.9; overflow-wrap: anywhere; }
.book-prose h2 { font-size: 1.5em; }
.book-prose h3 { font-size: 1.2em; }
.book-prose h4 { font-size: 1.05em; }
.book-prose pre { white-space: pre; overflow-wrap: normal; }
.book-prose table { font-size: .88em; }
.book-prose .table-wrap td:first-child { min-width: 8rem; width: auto; }
.book-index-page .book-prose .table-wrap td:first-child { min-width: 12rem; width: 44%; }
.book-prose :is(h2,h3,h4) { position: relative; }
.heading-permalink { display: inline-block; vertical-align: middle; margin-left: 7px; padding: 3px 7px; min-width: 28px; min-height: 28px; color: var(--accent); background: transparent; border: 0; cursor: pointer; font: 500 .75rem var(--font-sans); opacity: .65; }
.heading-permalink:hover, .heading-permalink:focus-visible { opacity: 1; }
.chapter-outline { margin: 0 0 24px; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 8px; }
.chapter-outline summary { padding: 15px 18px; cursor: pointer; font-size: .9rem; font-weight: 600; color: var(--accent); }
.chapter-outline ul { padding: 0 22px 18px 38px; max-height: 45vh; overflow-y: auto; }
.chapter-outline li { padding: 4px 0; font-size: .85rem; }
.outline-subsection { margin-left: 16px; }
.chapter-outline a { color: var(--ink-soft); text-decoration: none; }
.code-block { margin: 20px 0; min-width: 0; }
.code-toolbar { display: flex; justify-content: flex-end; background: var(--ink); padding: 6px 8px; border-radius: 8px 8px 0 0; }
.copy-code { color: white; border: 1px solid var(--accent-light); background: transparent; border-radius: 4px; padding: 6px 12px; font-size: .8rem; cursor: pointer; }
.code-block pre { margin: 0; border-radius: 0 0 8px 8px; }
.clipboard-fallback { position: fixed; left: -9999px; top: 0; }
.reading-resume { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; padding: 12px 14px; border: 1px solid var(--accent-border); border-radius: 6px; background: var(--bg-card); font-size: .85rem; margin-top: 12px; }
.reading-resume span { flex: 1 1 220px; }
.reading-resume a { color: var(--accent); text-decoration: underline; }
.reading-resume button { padding: 5px 8px; }
.reader-toolbar { position: fixed; z-index: 950; bottom: max(16px, env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%); display: flex; gap: 6px; align-items: center; padding: 8px; background: var(--bg-primary); border: 1px solid var(--border); border-radius: 10px; max-width: calc(100vw - 20px); }
.reader-toolbar button { font-size: .8rem; white-space: nowrap; min-height: 40px; padding: 7px 10px; }
.reader-toolbar button:disabled { opacity: .4; cursor: default; }
.reader-toolbar progress { width: 64px; height: 6px; accent-color: var(--accent); }
.reader-panel { position: fixed; inset: auto 0 0; width: min(900px, 100%); max-width: 100%; max-height: 82dvh; padding: 24px; margin: auto auto 0; border: 1px solid var(--border); border-radius: 14px 14px 0 0; background: var(--bg-primary); color: var(--ink); overflow-y: auto; overscroll-behavior: contain; }
.reader-panel::backdrop { background: rgba(23,36,28,.45); }
.reader-panel-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 18px; position: sticky; top: -24px; padding: 12px 0; background: var(--bg-primary); z-index: 1; }
.reader-panel-top h2 { font-size: 1.2rem; }
.reader-panel-columns { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.reader-panel-columns > section { padding: 0; margin: 0; min-height: 0; }
.reader-panel-columns h3 { font-size: .9rem; margin-bottom: 10px; }
.reader-panel-columns ul { list-style: none; padding: 0; }
.reader-panel-columns a { display: block; color: var(--ink-soft); font-size: .85rem; line-height: 1.5; padding: 9px 8px; border-radius: 4px; overflow-wrap: anywhere; }
.reader-panel-columns a:hover, .reader-panel-columns .is-active a { background: var(--accent-bg); color: var(--accent); }
@media (max-width:768px) {
  body:not(.site-ready) .menu-toggle { display: none; }
  body:not(.site-ready) .filter-section { display: none; }
  .no-script-nav { display: flex; flex-wrap: wrap; gap: 12px 20px; padding: calc(var(--header-height) + 16px) 20px 0; }
  .hero-index .island-visual { display: none; }
  .hero-index.cinematic-hero { min-height: auto; }
  .hero-index .hero-inner { padding-top: 0; padding-bottom: 20px; }
  .hero-index .hero-stats { margin-top: 22px; }
  .hero-index .hero-slogan { max-width: 34rem; margin-inline: auto; }
  .home-quicklinks { justify-content: center; }
  .hero-index .hero-btns { margin-top: 22px; }
  .works-hero { min-height: auto; }
  .works-hero .hero-inner { padding-bottom: 44px; }
  .filter-section.archive-filter { margin: 0 auto 22px; }
  .archive-filter .filter-bar { justify-content: flex-start; gap: 8px; padding: 12px; }
  .archive-filter .filter-label { display: none; }
  .filter-btn { min-height: 42px; }
  .reader-panel-columns { grid-template-columns: 1fr; }
}
@media (max-width:480px) {
  .book-search-fields { flex-wrap: wrap; }
  .book-search input { flex-basis: 100%; }
  .hero-index .hero-stats { padding: 14px 10px; }
  .hero-index .stat-number { font-size: 1.8rem; }
  .hero-index .stat-label { font-size: .74rem; }
  .reader-toolbar progress { width: 36px; }
  .reader-toolbar button { padding: 6px 8px; }
  .reader-panel { padding: 18px; }
}
@media print {
  .reader-toolbar,.reader-panel,.chapter-outline,.heading-permalink,.code-toolbar,.reading-resume,.book-maintenance-note { display: none !important; }
}
.book-update-notice { margin: 18px 0 0; padding: 16px 18px; background: #fff8e8; border: 1px solid #e4c989; border-radius: 8px; color: #57421c; text-align: left; font-size: .9rem; line-height: 1.75; }
.book-update-notice p { margin: 8px 0 0; }
.book-update-notice a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.book-update-notice .notice-sources { font-size: .8rem; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation: none !important; transition: none !important; }
}
/* All chapter links remain available when JavaScript is disabled. */
@media (max-width: 1024px) {
  .book-reader-page:not(.reader-ready) .book-toc-list { display: block; }
  .book-reader-page:not(.reader-ready) .book-toc-toggle { display: none; }
}
/* Legacy reveal classes should never leave content hidden if a script fails. */
.animate-in,.animate-slide-in,.animate-slide-in-right,.animate-scale-in { opacity: 1; transform: none; }

/* SEO: Featured books quick direct links on homepage */
.dossier-featured-books { margin-top: 36px; padding: 24px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; }
.featured-books-title { font-size: 1.1rem; margin-bottom: 18px; color: var(--ink); }
.featured-books-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin-bottom: 20px; }
.featured-book-item { display: block; padding: 14px 16px; background: var(--bg); border: 1px solid var(--border-light); border-radius: 8px; text-decoration: none; color: inherit; transition: border-color .2s, transform .2s; }
.featured-book-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.featured-book-tag { font-size: .72rem; padding: 2px 6px; background: rgba(0, 184, 138, 0.1); color: var(--accent); border-radius: 4px; display: inline-block; margin-bottom: 6px; }
.featured-book-item strong { display: block; font-size: .95rem; color: var(--ink); margin-bottom: 4px; }
.featured-book-desc { display: block; font-size: .8rem; color: var(--text-secondary); line-height: 1.4; }
.featured-books-more { text-align: center; margin-top: 10px; }