html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { background: var(--paper-alt); }
a { color: inherit; }
.page-frame { max-width: 1240px; margin: 0 auto; background: var(--paper); border-inline: 1px solid var(--line); }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 12px 20px; background: var(--ink); color: var(--paper); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.masthead { height: 64px; padding: 0 48px; display: flex; justify-content: space-between; align-items: center; gap: 24px; position: sticky; top: 0; z-index: 10; background: var(--paper); border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.brand .ar-wordmark { font-size: 25px; }
.brand .ar-glyph { font-size: 18px; }
.masthead nav { display: flex; align-items: center; gap: 32px; }
.page-label { padding-right: 32px; border-right: 1px solid var(--line-2); }
.spec-link { font-size: 12px; text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; gap: 10px; }
.spec-link:hover, .footer-links a:hover { text-decoration: underline; text-underline-offset: 5px; }
.reading-progress { position: absolute; bottom: -1px; left: 0; right: 0; height: 2px; pointer-events: none; }
.reading-progress span { display: block; height: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; }
.essay-cover { padding: 48px 48px 0; border-bottom: 1px solid var(--line); }
/* Language editions share layout, but keep separate article URLs. */
.language-switch { display: flex; justify-content: flex-end; gap: 18px; margin: -12px 0 24px; font-size: 12px; }
.language-switch a, .language-switch span { display: inline-flex; align-items: center; min-height: 32px; }
.language-switch a { text-underline-offset: 4px; }
.language-switch [aria-current] { color: var(--muted); }
.cover-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; }
.publication-dates { font-size: 11px; line-height: 1.7; color: var(--muted); }
.cover-meta time { color: var(--muted); font-family: var(--font-mono); font-size: 11px; }
h1 { font-family: var(--font-display); font-size: clamp(56px, 7.2vw, 100px); line-height: 1.02; letter-spacing: -0.025em; margin-top: 42px; max-width: 1100px; text-wrap: initial; }
h1 > span { display: block; }
.essay-cover .term-nowrap { white-space: nowrap; }
h1 em { font-weight: 400; }
.cover-bottom { display: grid; grid-template-columns: 224px minmax(0, 1fr); gap: 32px; margin: 40px 0 36px; }
.byline { display: flex; flex-direction: column; justify-content: center; gap: 5px; font-size: 12px; color: var(--muted); }
.byline .author { font-size: 15px; color: var(--ink); font-weight: 500; }
.cover-deck { max-width: 42ch; font-size: 20px; line-height: 1.5; color: var(--ink-soft); }
.cover-foot { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); padding: 12px 0; }
.start-link { min-height: 32px; display: inline-flex; align-items: center; gap: 20px; font-size: 12px; text-decoration: none; }
.start-link:hover { color: var(--accent); }
.reading-time { color: var(--muted); font-size: 10px; }
.essay-layout { display: grid; grid-template-columns: 224px minmax(0, 1fr); gap: 32px; padding: 0 48px; }
.contents-rail { min-width: 0; }
.desktop-contents { position: sticky; top: 108px; padding: 62px 26px 32px 0; }
.desktop-contents > .ar-meta { color: var(--muted); font-size: 10px; margin-bottom: 20px; }
.contents-list { list-style: none; padding: 0; margin: 0; }
.contents-list a { display: flex; align-items: baseline; gap: 12px; text-decoration: none; padding: 10px 0; font-size: 12px; line-height: 1.6; color: var(--muted); }
.chapter-no { font-family: var(--font-mono); font-size: 10px; color: var(--accent); flex-shrink: 0; }
.contents-list a:hover, .contents-list a[aria-current] { color: var(--ink); }
.contents-list a[aria-current] { font-weight: 600; }
.contents-list a[aria-current] .chapter-no { text-decoration: underline; text-underline-offset: 4px; }
.sources-link { font-size: 11px; display: block; text-decoration: none; margin-top: 24px; border-top: 1px solid var(--line); padding-top: 20px; color: var(--muted); }
.sources-link span { margin-left: 8px; }
.sources-link:hover { color: var(--ink); }
.mobile-contents { display: none; }
.reading-column { width: 100%; min-width: 0; max-width: 744px; padding-right: 32px; }
.chapter { padding: 60px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 32px; }
.chapter:last-child { border-bottom: 0; padding-bottom: 72px; }
.chapter-date { font-size: 10px; margin-bottom: 16px; }
.chapter h2 { font-family: var(--font-display); font-size: clamp(34px, 3.3vw, 44px); line-height: 1.1; letter-spacing: -0.012em; max-width: 26ch; margin-bottom: 30px; }
.story-copy { font-size: 18px; line-height: 1.75; color: var(--ink-soft); }
.story-copy p + p { margin-top: 24px; }
.opening::first-letter { font-family: var(--font-display); font-size: 76px; line-height: .78; float: left; margin: 8px 5px 0 0; color: var(--ink); }
.archive-note { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line-2); }
.archive-note > span { display: block; font-size: 10px; }
.archive-note > a { display: flex; justify-content: space-between; align-items: center; margin: 8px 0; font-size: 18px; text-decoration: none; }
.archive-note > a:hover { text-decoration: underline; }
.archive-note p { font-size: 12px; line-height: 1.6; color: var(--muted); }
.story-copy .closing-thought { font-family: var(--font-display); font-size: 32px; line-height: 1.26; color: var(--ink); border-top: 1px solid var(--line-2); padding-top: 32px; margin-top: 32px; }
.author-signoff { display: flex; flex-direction: column; gap: 6px; margin-top: 36px; }
.author-signoff .ar-serif { font-size: 32px; line-height: 1; }
.author-signoff > span:last-child { font-size: 12px; color: var(--muted); }
.timeline-section { padding: 48px; background: var(--paper-alt); border-block: 1px solid var(--line); }
.section-heading .ar-meta { font-size: 10px; margin-bottom: 14px; }
.section-heading h2 { font-family: var(--font-display); font-size: clamp(34px, 3.3vw, 44px); line-height: 1.1; }
.timeline { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); list-style: none; padding: 0; margin: 36px 0 4px; }
.timeline li { min-width: 0; border-top: 1px solid var(--line-2); padding: 22px 20px 0 0; position: relative; }
.timeline li::before { content: ''; position: absolute; width: 5px; height: 5px; border: 1px solid var(--accent); background: var(--paper-alt); top: -3px; left: 0; }
.timeline time { font-family: var(--font-mono); font-size: 10px; color: var(--accent); display: block; }
.timeline a { display: block; font-size: 13px; line-height: 1.6; text-decoration: none; margin-top: 12px; }
.timeline a:hover { text-decoration: underline; text-underline-offset: 4px; }
.timeline a span { color: var(--accent); }
.sources-section { padding: 56px 48px 64px; display: grid; grid-template-columns: 224px minmax(0, 1fr); gap: 32px; }
.sources-section .section-heading h2 { font-size: 32px; }
.source-list { margin: 0; padding: 0; list-style: none; }
.source-list li { display: grid; grid-template-columns: 140px minmax(0, 1fr); align-items: baseline; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.source-list li:first-child { padding-top: 0; }
.source-list li:last-child { border-bottom: 0; }
.source-date { color: var(--muted); font-family: var(--font-mono); font-size: 10px; line-height: 1.8; }
.source-list a { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; font-size: 13px; text-decoration: none; }
.source-list a:hover { color: var(--accent); }
.source-list small { display: block; color: var(--muted); font-size: 11px; margin-top: 3px; }
.site-footer { border-top: 1px solid var(--ink); padding: 36px 48px 44px; display: flex; justify-content: space-between; gap: 24px; }
.site-footer .ar-wordmark { font-size: 26px; text-decoration: none; }
.site-footer p { font-size: 12px; color: var(--muted); margin-top: 8px; }
.site-footer p a { text-underline-offset: 3px; }
.footer-links { display: flex; align-items: flex-start; gap: 28px; font-size: 12px; }
.footer-links a { text-decoration: none; padding: 8px 0; }
.footer-links span { margin-left: 6px; }
[id]:focus { outline: none; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
@media (min-width: 1440px) { .page-frame { margin-block: 24px; border-top: 1px solid var(--line); } }
@media (max-width: 1000px) {
  .masthead { padding-inline: 32px; }
  .essay-cover { padding-inline: 32px; }
  .essay-layout { grid-template-columns: 180px minmax(0, 1fr); gap: 28px; padding-inline: 32px; }
  .cover-bottom { grid-template-columns: 180px minmax(0, 1fr); gap: 28px; }
  .reading-column { padding-right: 0; }
  .desktop-contents { padding-right: 10px; }
  .timeline-section { padding-inline: 32px; }
  .timeline { grid-template-columns: repeat(3, 1fr); gap: 28px 0; }
  .sources-section { grid-template-columns: 180px minmax(0, 1fr); gap: 28px; padding-inline: 32px; }
  .source-list li { grid-template-columns: 1fr; gap: 4px; }
  .site-footer { padding-inline: 32px; }
  .footer-links { gap: 18px; }
}
@media (max-width: 800px) {
  .essay-layout { display: block; }
  .desktop-contents { display: none; }
  .mobile-contents { display: block; border-bottom: 1px solid var(--line); }
  .mobile-contents summary { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; cursor: pointer; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .08em; font-size: 11px; list-style: none; }
  .mobile-contents summary::-webkit-details-marker { display: none; }
  .mobile-contents summary span { font-size: 18px; }
  .mobile-contents[open] summary span { transform: rotate(45deg); }
  .mobile-contents nav { padding-bottom: 18px; }
  .mobile-contents .contents-list a { padding: 11px 0; font-size: 14px; }
  .reading-column { max-width: 680px; margin-inline: auto; }
  .chapter { padding-block: 44px; }
  .cover-bottom { grid-template-columns: 1fr; gap: 24px; }
  .byline { order: 2; }
  .cover-deck { max-width: 48ch; }
  .sources-section { grid-template-columns: 1fr; gap: 30px; }
  .source-list li { grid-template-columns: 160px minmax(0, 1fr); gap: 20px; }
  .site-footer { flex-wrap: wrap; }
}
@media (max-width: 520px) {
  .page-frame { border: none; }
  .masthead { height: 60px; padding-inline: 20px; gap: 14px; }
  .brand { gap: 9px; }
  .brand .ar-wordmark { font-size: 21px; }
  .brand .ar-glyph { font-size: 15px; }
  .page-label { display: none; }
  .spec-link { font-size: 11px; gap: 6px; }
  .spec-link { max-width: 88px; line-height: 1.35; }
  .essay-cover { padding: 32px 22px 0; }
  .cover-meta { align-items: flex-start; flex-direction: column; gap: 10px; }
  .cover-meta .ar-meta { font-size: 9px; letter-spacing: .1em; }
  .publication-dates { font-size: 11px; line-height: 1.7; color: var(--muted); }
.cover-meta time { font-size: 10px; }
  h1 { font-size: clamp(42px, 11.8vw, 60px); line-height: 1.03; margin-top: 30px; letter-spacing: -0.02em; }
  h1 > span { display: block; }
  h1 em { display: block; }
  .cover-bottom { margin: 24px 0; gap: 22px; }
  .cover-deck { font-size: 17px; line-height: 1.6; }
  .byline { font-size: 11px; gap: 3px; }
  .byline .author { font-size: 14px; }
  .essay-layout { padding-inline: 22px; }
  .chapter { padding-block: 36px; }
  .chapter-date { font-size: 9px; margin-bottom: 13px; }
  .chapter h2 { font-size: 34px; margin-bottom: 24px; }
  .story-copy { font-size: 16px; line-height: 1.75; }
  .story-copy p + p { margin-top: 22px; }
  .opening::first-letter { font-size: 64px; margin: 8px 4px 0 0; }
  .story-copy .closing-thought { font-size: 28px; }
  .archive-note > a { font-size: 16px; gap: 12px; }
  .timeline-section { padding: 36px 22px; }
  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 28px; }
  .timeline li { padding-right: 20px; }
  .timeline a { font-size: 12px; }
  .sources-section { padding: 36px 22px 44px; }
  .source-list li { grid-template-columns: 1fr; gap: 6px; }
  .source-list a { font-size: 13px; }
  .site-footer { padding: 30px 22px; gap: 24px; }
  .footer-links { width: 100%; justify-content: space-between; gap: 8px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }
@media print {
  @page { margin: 20mm 18mm; }
  body, .page-frame { background: white; }
  .page-frame { max-width: none; margin: 0; border: 0; }
  .masthead, .contents-rail, .cover-foot, .timeline-section, .site-footer, .skip-link { display: none; }
  .essay-cover, .essay-layout, .sources-section { padding-inline: 0; }
  .essay-cover { padding-top: 0; }
  h1 { font-size: 48pt; margin-top: 20pt; }
  .cover-bottom { display: block; }
  .byline { margin-bottom: 16pt; }
  .essay-layout { display: block; }
  .reading-column { max-width: none; padding: 0; }
  .story-copy { font-size: 11pt; line-height: 1.55; }
  .chapter { padding-block: 24pt; }
  .chapter h2 { font-size: 25pt; break-after: avoid; }
  .chapter-date { break-after: avoid; }
  p { orphans: 3; widows: 3; }
  .archive-note, .author-signoff, .source-list li { break-inside: avoid; }
  .story-copy .closing-thought { font-size: 21pt; }
  .sources-section { display: block; }
  .source-list { margin-top: 20pt; }
}