/* Shared editorial system. Load tokens.css before this file.
   Components: masthead, hero, reading rail, essay, quotations, evidence, colophon. */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 36px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 12;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.79' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection { background: var(--highlight); color: var(--ink); }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--denim); outline-offset: 5px; }
.skip-link { position: fixed; top: -80px; left: 20px; padding: 15px; background: var(--ink); color: var(--paper); z-index: 100; font-family: var(--sans); }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.read-progress { position: fixed; left: 0; top: 0; height: 3px; width: 100%; background: var(--denim); transform: scaleX(0); transform-origin: 0 50%; z-index: 40; }
.site-header, .hero, .hero-rule, .article-layout, .site-footer {
  width: calc(100% - var(--gutter) * 2); max-width: var(--page-width); margin-inline: auto;
}

/* Indigo for the brand and navigation; burnt orange for editorial emphasis.
   A mounted-rider silhouette, slab serif, and a double rule. */
.site-header { min-height: 148px; padding-block: 27px 25px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 4px double var(--denim-dark); position: relative; }
.brand-lockup { display: flex; flex-direction: column; gap: 10px; }
.wordmark { display: inline-flex; align-items: center; gap: 16px; width: fit-content; font: 700 29px/1.2 var(--display); letter-spacing: -.055em; text-transform: uppercase; color: var(--denim-dark); }
.wordmark svg { width: 68px; height: 68px; flex-shrink: 0; color: var(--denim); }
.brand-tagline { margin: -7px 0 0 84px; color: var(--muted); font: italic 15px/1.4 var(--serif); }
.header-right { display: flex; flex-direction: column; align-items: flex-end; gap: 15px; }
.meta { font: 10px/1.5 var(--mono); letter-spacing: .09em; color: var(--muted); display: flex; align-items: center; gap: 14px; }
.meta .dot { width: 3px; height: 3px; background: var(--accent); transform: rotate(45deg); }
.motion-toggle { border: 1px solid var(--line); border-radius: 0; background: transparent; padding: 10px 12px; min-height: 36px; display: none; align-items: center; gap: 8px; font: 9px/1 var(--mono); letter-spacing: .06em; cursor: pointer; }
.js .motion-toggle { display: inline-flex; }
.motion-toggle:hover { background: var(--paper-deep); border-color: var(--denim); }
.motion-toggle:disabled { opacity: .65; cursor: default; }
.motion-toggle svg { width: 10px; height: 10px; }
.motion-toggle[aria-pressed="false"] .pause-symbol { display: none; }
.motion-toggle[aria-pressed="true"] .play-symbol { display: none; }

/* The title and illustration share the opening spread. */
.hero { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; gap: 22px; padding-block: 50px 45px; position: relative; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 10px; min-width: 0; }
.eyebrow { display: flex; align-items: center; gap: 12px; font: 10px/1.5 var(--mono); letter-spacing: .12em; color: var(--denim); margin: 0 0 29px; text-transform: uppercase; }
.eyebrow::before { content: ''; width: 28px; height: 7px; border-block: 1px solid var(--denim); flex-shrink: 0; }
h1 { font: 700 clamp(54px, 5.1vw, 74px)/1.06 var(--serif); letter-spacing: -.058em; margin: 0; max-width: 680px; }
h1 .title-opening, h1 .title-closing { display: block; }
h1 .title-opening { text-wrap: balance; }
h1 em { display: block; color: var(--accent); font-weight: 400; font-size: 1.12em; line-height: 1.18; letter-spacing: -.06em; white-space: nowrap; margin-left: -3px; }
.hero-art { margin: 0 -12px 0 0; position: relative; min-width: 0; }
.colony { width: 100%; height: auto; display: block; overflow: visible; }
.hero-rule { display: flex; align-items: center; gap: 16px; color: var(--denim); font: 10px/1 var(--mono); letter-spacing: .14em; }
.hero-rule::before { content: ''; height: 5px; flex: 1; border-block: 1px solid var(--line); }
.hero-rule .down-arrow { font: 18px/1 var(--sans); margin-left: 2px; }

/* Readable measure with an understated, sticky index in the margin. */
.article-layout { display: grid; grid-template-columns: 180px minmax(0, var(--reading-width)) 1fr; gap: 54px; padding-top: 58px; }
.contents { font: 12px/1.4 var(--sans); align-self: start; position: sticky; top: 36px; padding-top: 7px; padding-right: 14px; }
.contents-heading { font: 10px/1.4 var(--mono); letter-spacing: .12em; color: var(--denim); margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--line); }
.contents a { display: grid; grid-template-columns: 22px 1fr; align-items: baseline; gap: 7px; padding: 10px 0; color: var(--muted); position: relative; transition: color .2s; }
.contents .nav-num { font: 10px var(--mono); }
.contents a:hover, .contents a.active { color: var(--denim-dark); }
.contents a.active { font-weight: 600; }
.contents a.active::before { position: absolute; content: ''; width: 5px; height: 5px; left: -13px; top: 15px; background: var(--denim); transform: rotate(45deg); }
.contents .nav-sub { font-size: 11px; padding-top: 0; padding-bottom: 12px; color: var(--denim); }
.contents .nav-sub .nav-num { font-size: 13px; }
.contents .rail-rule { height: 1px; background: var(--line); width: 35px; margin: 26px 0 18px; }
.read-position { font: 10px/1.6 var(--mono); letter-spacing: .08em; color: var(--muted); }
.mobile-contents { display: none; }
.essay { min-width: 0; grid-column: 2; }
.essay p, .essay > ul, .essay > ol { font-size: 19px; line-height: 1.85; margin: 0 0 25px; letter-spacing: .002em; orphans: 3; widows: 3; }
.essay .lead { font-size: 26px; line-height: 1.58; letter-spacing: -.018em; margin-bottom: 30px; }
.essay .definition { margin-bottom: 32px; }
.essay strong { font-weight: 700; }
.essay em { font-style: italic; }
.essay h2 { font: 700 33px/1.25 var(--serif); letter-spacing: -.035em; margin: 38px 0 23px; }
.essay h3 { font: 400 27px/1.3 var(--serif); margin: 30px 0 18px; }
.essay p a { color: var(--denim-dark); text-decoration: underline; text-underline-offset: 3px; }
.essay img { max-width: 100%; height: auto; }
.essay pre { max-width: 100%; overflow-x: auto; background: var(--paper-deep); padding: 20px; font: 13px/1.7 var(--mono); }
.essay table { border-collapse: collapse; width: 100%; font: 14px/1.6 var(--sans); margin-block: 25px; }
.essay th, .essay td { border-bottom: 1px solid var(--line); padding: 12px 8px; text-align: left; }
.essay th { font-weight: 600; color: var(--denim-dark); }
.ink-highlight { background: linear-gradient(transparent 57%, var(--highlight) 57%, var(--highlight) 94%, transparent 94%); box-decoration-break: clone; -webkit-box-decoration-break: clone; padding: 0 .035em; }
.essay-section { position: relative; margin-bottom: 62px; scroll-margin-top: 38px; }
.section-marker, .essay h2.section-marker { display: flex; align-items: center; gap: 14px; font: 700 18px/1.35 var(--serif); color: var(--ink); margin: 0 0 28px; }
.section-marker > span:first-child { font: 10px/1 var(--mono); color: var(--denim); min-width: 28px; min-height: 28px; border: 1px solid var(--line); display: grid; place-items: center; }
.section-marker i { flex: 1; height: 1px; background: var(--line); margin-left: 8px; }
.placeholder { font: .75em var(--mono); background: var(--paper-deep); color: var(--muted); border-bottom: 1px dashed var(--ochre); padding: 2px 4px; box-decoration-break: clone; }
.placeholder-link { font-size: .67em; overflow-wrap: anywhere; }
.statement { position: relative; border-block: 1px solid var(--line); border-left: 3px solid var(--accent); margin: 36px 0; padding: 24px 0 24px 28px; }
.essay .statement p { font-size: 29px; line-height: 1.5; letter-spacing: -.023em; color: var(--accent-dark); margin: 0; }
.statement em { font-weight: 400; }
.files-figure { margin: 38px -30px; position: relative; overflow: hidden; background: var(--ink-panel); border: 1px solid var(--panel-line); }
.files-illustration, .lattice-illustration { display: block; width: 100%; height: auto; }
.ornament { margin: 28px 0 32px; padding: 0; border-block: 1px solid var(--line); }
.margin-art { position: absolute; left: calc(100% + 38px); width: 68px; top: 62px; color: var(--ochre); }
.margin-art svg { width: 100%; height: auto; display: block; }
.vignette-p { position: relative; }
.vignette-p .margin-art { top: 8px; }

/* Source material sits on a slightly darker sheet of paper. */
.agent-excerpts { margin: 38px -30px 40px; padding: 32px; border: 1px solid var(--line); background: var(--paper-deep); scroll-margin-top: 34px; position: relative; isolation: isolate; }
.agent-excerpts::before { content: ''; position: absolute; top: -2px; left: 32px; width: 55px; height: 3px; background: var(--denim); }
.evidence-kicker { font: 10px/1.5 var(--mono); color: var(--denim-dark); letter-spacing: .08em; display: flex; align-items: center; gap: 9px; margin-bottom: 16px; }
.evidence-status { height: 5px; width: 5px; background: var(--denim); transform: rotate(45deg); flex-shrink: 0; }
.evidence-date { margin-left: auto; color: var(--muted); font-size: 9px; letter-spacing: .04em; }
.agent-excerpts h3 { font: 400 32px/1.25 var(--serif); letter-spacing: -.033em; margin: 0 0 11px; color: var(--ink); }
.essay .evidence-intro { font: 14px/1.65 var(--sans); color: var(--muted); margin: 0 0 26px; letter-spacing: 0; }
.excerpt-card { margin: 0; background: var(--paper-light); border: 1px solid var(--line); padding: 24px; break-inside: avoid; }
.excerpt-card + .excerpt-card { margin-top: 18px; }
.excerpt-meta { display: flex; align-items: center; gap: 10px; font: 9px/1.6 var(--mono); letter-spacing: .04em; color: var(--muted); flex-wrap: wrap; }
.excerpt-number { font-size: 10px; min-width: 26px; padding: 2px 5px; border: 1px solid var(--line); text-align: center; letter-spacing: 0; color: var(--denim); }
.excerpt-publisher { margin-left: auto; font-size: 9px; }
.excerpt-card blockquote { margin: 22px 0 18px; padding: 0; border: 0; }
.essay .excerpt-card blockquote p { font: 400 23px/1.5 var(--serif); letter-spacing: -.019em; color: var(--accent-dark); margin: 0; }
.essay .board-excerpt blockquote p { font: 14px/1.85 var(--mono); letter-spacing: .02em; overflow-wrap: break-word; }
.essay .excerpt-context { font: 13px/1.7 var(--sans); color: var(--muted); margin: 0 0 15px; letter-spacing: 0; }
.excerpt-card figcaption { padding-top: 16px; border-top: 1px solid var(--line); }
.source-link { font: 11px/1.6 var(--mono); display: inline-flex; align-items: center; gap: 12px; color: var(--denim-dark); border-bottom: 1px solid var(--denim-line); padding-bottom: 2px; }
.source-link:hover { border-color: var(--denim-dark); }
.source-link > span[aria-hidden] { font-family: var(--sans); font-size: 14px; }
.evidence-note { display: grid; grid-template-columns: 72px 1fr; gap: 14px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.note-label { font: 9px/1.75 var(--mono); letter-spacing: .08em; color: var(--denim-dark); padding-top: 3px; }
.essay .evidence-note p { font: 12px/1.75 var(--sans); color: var(--muted); letter-spacing: 0; margin: 0; }
.evidence-note a { white-space: nowrap; }

/* An inked closing panel, used once at the end of an essay. */
.conclusion { margin: 8px -36px 0; padding: 36px; border-top: 5px double var(--panel-accent); background: var(--ink-panel); color: var(--panel-text); }
.conclusion .section-marker { color: var(--panel-text); margin-bottom: 30px; }
.conclusion .section-marker > span:first-child { color: var(--panel-accent); border-color: var(--panel-line); }
.conclusion .section-marker i { background: var(--panel-line); }
.conclusion p { color: var(--panel-text); }
.conclusion h2 { font: 400 41px/1.28 var(--serif); letter-spacing: -.035em; margin: 32px 0; color: var(--panel-accent); }
.conclusion .creeping { font-style: italic; }
.conclusion strong { color: var(--paper-light); }
.conclusion p a { color: var(--panel-accent); }
.conclusion .last-thought { margin-top: 30px; padding-top: 25px; border-top: 1px solid var(--panel-line); color: var(--panel-accent); font-style: italic; font-size: 22px; line-height: 1.65; }
.end-mark { color: var(--panel-accent); display: flex; justify-content: center; margin: 28px 0 1px; }
.site-footer { margin-top: 68px; padding-block: 26px 35px; border-top: 4px double var(--denim-dark); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-footer .wordmark { font-size: 15px; letter-spacing: -.03em; gap: 12px; }
.site-footer .wordmark svg { width: 36px; height: 36px; }
.back-top { font: 10px var(--mono); letter-spacing: .06em; color: var(--muted); display: flex; gap: 12px; align-items: center; padding-block: 12px; }
.back-top:hover { color: var(--denim); }
.back-top span { font-size: 16px; }

/* Responsive layout: preserve a comfortable measure before reducing type. */
@media (max-width: 1100px) {
  .wordmark { font-size: 25px; }
  .article-layout { grid-template-columns: 155px minmax(0, 1fr); gap: 38px; }
  .margin-art { display: none; }
  .files-figure, .agent-excerpts, .conclusion { margin-inline: 0; }
  h1 { font-size: clamp(44px, 5.2vw, 62px); }
}
@media (max-width: 800px) {
  .site-header { min-height: 130px; padding-block: 23px; }
  .wordmark { font-size: 22px; gap: 12px; }
  .wordmark svg { width: 50px; height: 50px; }
  .brand-tagline { margin-left: 62px; font-size: 13px; }
  .meta { font-size: 9px; }
  .hero { gap: 10px; padding-block: 38px; }
  h1 { font-size: clamp(38px, 5.4vw, 48px); }
  .eyebrow { font-size: 9px; letter-spacing: .06em; margin-bottom: 22px; }
  .article-layout { display: block; padding-top: 28px; }
  .contents { display: none; }
  .essay { max-width: var(--reading-width); margin-inline: auto; }
  .mobile-contents { display: flex; gap: 18px; overflow: auto; white-space: nowrap; margin: 0 0 32px; padding-bottom: 14px; border-bottom: 1px solid var(--line); scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
  .mobile-contents a { font: 10px/1.4 var(--mono); color: var(--muted); padding: 9px 0; border-bottom: 1px solid transparent; }
  .mobile-contents a:hover, .mobile-contents .excerpts-jump { color: var(--denim); border-color: var(--denim); }
  .conclusion { padding: 30px; }
}
@media (max-width: 580px) {
  .site-header { min-height: 140px; gap: 12px; padding-block: 21px; align-items: flex-start; }
  .brand-lockup { min-width: 0; }
  .wordmark { max-width: 250px; font-size: 21px; line-height: 1.25; letter-spacing: -.04em; gap: 10px; }
  .site-header .wordmark > span { max-width: 155px; }
  .wordmark svg { width: 43px; height: 48px; }
  .brand-tagline { margin: 0; font-size: 13px; max-width: 230px; }
  .header-right { flex-shrink: 0; gap: 12px; padding-top: 4px; }
  .meta { font-size: 8px; letter-spacing: .025em; }
  .meta .essay-label, .meta .dot { display: none; }
  .motion-toggle { font-size: 8px; padding: 9px 8px; min-height: 34px; gap: 5px; }
  .hero { display: flex; flex-direction: column; align-items: stretch; padding: 35px 0 20px; gap: 5px; }
  .hero-copy { padding: 0; }
  .eyebrow { margin-bottom: 23px; font-size: 9px; letter-spacing: .1em; }
  h1 { font-size: clamp(40px, 10.8vw, 60px); line-height: 1.04; letter-spacing: -.055em; }
  h1 .title-opening { max-width: 400px; }
  h1 em { font-size: 1.12em; letter-spacing: -.06em; margin-left: -2px; }
  .hero-art { margin: 6px 0 0; align-self: center; width: min(100%, 330px); }
  .colony { max-height: 280px; }
  .hero-rule { font-size: 9px; gap: 12px; }
  .article-layout { padding-top: 22px; }
  .essay p { font-size: 18px; line-height: 1.8; margin-bottom: 23px; }
  .essay .lead { font-size: 23px; line-height: 1.57; margin-bottom: 28px; }
  .essay-section { margin-bottom: 44px; }
  .section-marker, .essay h2.section-marker { gap: 10px; font-size: 17px; margin-bottom: 25px; }
  .section-marker i { margin-left: 0; min-width: 10px; }
  .statement { padding: 20px 0 20px 19px; margin-block: 30px; }
  .essay .statement p { font-size: 25px; }
  .files-figure { margin: 30px calc(-1 * var(--gutter)); }
  .agent-excerpts { margin: 32px -8px; padding: 23px 15px; }
  .agent-excerpts::before { left: 15px; }
  .agent-excerpts h3 { font-size: 29px; }
  .evidence-kicker { font-size: 8px; gap: 7px; }
  .evidence-date { font-size: 8px; }
  .excerpt-card { padding: 20px 16px; }
  .excerpt-meta, .excerpt-publisher { font-size: 8px; }
  .essay .excerpt-card blockquote p { font-size: 22px; }
  .essay .board-excerpt blockquote p { font-size: 12px; line-height: 1.85; }
  .source-link { font-size: 10px; gap: 8px; }
  .evidence-note { grid-template-columns: 1fr; gap: 7px; }
  .conclusion { margin-inline: calc(-1 * var(--gutter)); padding: 30px var(--gutter); }
  .conclusion h2 { font-size: 34px; }
  .conclusion .last-thought { font-size: 21px; }
  .site-footer { margin-top: 35px; padding-block: 23px; gap: 12px; }
  .site-footer .wordmark { font-size: 12px; gap: 8px; }
  .back-top { font-size: 9px; gap: 7px; }
}

@media (max-width: 370px) {
  .site-header { flex-wrap: wrap; }
  .brand-lockup { width: 100%; }
  .header-right { width: 100%; flex-direction: row; align-items: center; justify-content: space-between; padding-top: 0; }
  .site-footer .wordmark { font-size: 10px; }
}

/* Motion controls and print are first-class parts of the reading experience. */
.motion-paused *, .motion-paused *::before, .motion-paused *::after { animation-play-state: paused !important; }
.motion-paused { scroll-behavior: auto; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print {
  @page { size: A4; margin: 20mm 18mm; }
  html { scroll-behavior: auto; }
  body { background: white; color: #111; }
  body::before, .read-progress, .motion-toggle, .contents, .mobile-contents, .hero-rule, .hero-art, .header-right, .site-footer, .margin-art { display: none !important; }
  .site-header { width: 100%; min-height: 0; padding: 0 0 14px; margin-bottom: 24px; }
  .wordmark { font-size: 20px; }
  .wordmark svg { width: 32px; height: 40px; }
  .brand-tagline { margin-left: 48px; }
  .hero { width: 100%; display: block; padding: 0 0 25px; }
  .eyebrow { margin-bottom: 15px; }
  h1 { font-size: 36pt; max-width: none; }
  h1 .title-opening, h1 em, h1 .title-closing { display: inline; font-size: inherit; line-height: 1.15; white-space: normal; max-width: none; }
  .article-layout { display: block; width: 100%; padding-top: 0; }
  .essay { max-width: none; }
  .essay p { font-size: 11pt; line-height: 1.65; }
  .essay .lead { font-size: 14pt; }
  .essay-section { margin-bottom: 26px; }
  .section-marker { break-after: avoid; margin-bottom: 17px; }
  .files-figure, .agent-excerpts { margin: 20px 0; padding: 20px; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .statement, .excerpt-card, .evidence-note { break-inside: avoid; }
  .essay .statement p { font-size: 17pt; }
  .essay .excerpt-card blockquote p { font-size: 14pt; }
  .essay .board-excerpt blockquote p { font-size: 10pt; }
  .essay .excerpt-context, .essay .evidence-note p { font-size: 9pt; }
  .conclusion { background: var(--paper-deep); color: var(--ink); padding: 25px; margin: 0; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .conclusion p, .conclusion strong, .conclusion .section-marker { color: var(--ink); }
  .conclusion h2, .conclusion .last-thought, .end-mark { color: var(--accent-dark); }
  .conclusion h2 { font-size: 24pt; }
  .conclusion .last-thought { font-size: 14pt; }
}