:root {
  --paper: #f7f4ed;
  --ink: #171713;
  --quiet: #6a685f;
  --rule: #c9c5b9;
  --measure: 74rem;
  --reading-measure: 52rem;
  --pad: clamp(1.25rem, 4vw, 4rem);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23,23,19,.018) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 2rem;
  font-family: "STIX Two Text", "Latin Modern Roman", "Computer Modern Serif", Georgia, serif;
  font-size: 18px;
  line-height: 1.55;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

img { max-width: 100%; }

::selection {
  background: var(--ink);
  color: var(--paper);
}

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 100;
  padding: .65rem .8rem;
  color: var(--paper);
  background: var(--ink);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .75rem;
  text-decoration: none;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.15rem var(--pad);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 65%, transparent);
}

.wordmark {
  display: block;
  flex: 0 0 auto;
  width: clamp(3.7rem, 5.5vw, 5.2rem);
  height: 2.65rem;
  overflow: hidden;
  text-decoration: none;
}

.wordmark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
}

.top-nav {
  display: flex;
  gap: clamp(.8rem, 2.5vw, 2rem);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  white-space: nowrap;
}

.top-nav a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.top-nav a:hover,
.top-nav a[aria-current="page"] { border-color: currentColor; }

.hero {
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding: 8rem var(--pad) 4rem;
}

.hero-inner,
.page-hero-inner {
  width: min(100%, var(--measure));
  margin: 0 auto;
}

.kicker,
.eyebrow,
.chapter-number,
.section-rail,
.work-index,
.lineage-meta,
.publication-year,
.margin-note,
.advance,
.evidence-links {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.kicker,
.eyebrow,
.chapter-number,
.section-rail,
.work-index,
.lineage-meta,
.publication-year { color: var(--quiet); }

.hero h1 {
  margin: 0 0 clamp(2rem, 6vw, 5rem);
  max-width: 11ch;
  font-size: clamp(3.4rem, 8.8vw, 8.2rem);
  line-height: .88;
  letter-spacing: -.052em;
  font-weight: 400;
}

.hero-copy {
  max-width: 48rem;
  font-size: clamp(1.25rem, 2.3vw, 1.9rem);
  line-height: 1.38;
  letter-spacing: -.015em;
}

.hero-copy p { margin: 0 0 1em; }
.hero-copy .closing { margin-top: 1.4em; font-style: italic; }

.section-index {
  width: min(100%, 46rem);
  margin-top: clamp(3rem, 7vw, 6rem);
  border-top: 1px solid var(--ink);
}

.section-index a,
.related-pages a {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .85rem 0 .8rem;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  font-size: 1.05rem;
}

.section-index a span:last-child,
.related-pages a span:last-child { transition: transform 160ms ease; }

.section-index a:hover span:last-child,
.related-pages a:hover span:last-child { transform: translateX(.35rem); }

.chapter,
.content-section {
  width: min(100%, calc(var(--measure) + 2 * var(--pad)));
  margin: 0 auto;
  padding: clamp(7rem, 14vw, 12rem) var(--pad);
  display: grid;
  grid-template-columns: minmax(2rem, 6rem) minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 4rem);
  border-top: 1px solid var(--ink);
  scroll-margin-top: 4rem;
}

.chapter-number,
.section-rail { padding-top: .4rem; }

.chapter h2,
.content-body > h2 {
  margin: .15rem 0 clamp(2.5rem, 6vw, 5rem);
  max-width: 14ch;
  font-size: clamp(2.7rem, 6.2vw, 5.8rem);
  line-height: .96;
  letter-spacing: -.045em;
  font-weight: 400;
}

.prose {
  max-width: 62rem;
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 6vw, 5rem);
}

.two-column p { margin: 0; }
.two-column p + p { margin-top: 1em; }

.margin-note {
  margin: 3.5rem 0 0;
  color: var(--quiet);
  text-transform: none;
  letter-spacing: .03em;
}

.work-list { border-top: 1px solid var(--ink); }

.work-item {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: 2rem;
  padding: 1.5rem 0 2rem;
  border-bottom: 1px solid var(--rule);
}

.work-item h3 {
  margin: 0 0 .65rem;
  font-size: 1.45rem;
  font-weight: 500;
}

.work-item p {
  margin: 0;
  max-width: 36rem;
  color: #3f3e38;
}

.page-hero {
  padding: clamp(10rem, 18vw, 14rem) var(--pad) clamp(6rem, 10vw, 9rem);
}

.compact-page-hero { padding-bottom: clamp(5rem, 8vw, 7rem); }

.page-hero h1 {
  margin: 0;
  font-size: clamp(4.4rem, 11vw, 9.5rem);
  line-height: .88;
  letter-spacing: -.055em;
  font-weight: 400;
}

.page-thesis {
  max-width: 22ch;
  margin: clamp(2.5rem, 6vw, 5rem) 0 0;
  font-size: clamp(2rem, 4.5vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -.035em;
}

.page-intro {
  max-width: var(--reading-measure);
  margin-top: clamp(3rem, 7vw, 6rem);
  font-size: clamp(1.18rem, 2.1vw, 1.65rem);
  line-height: 1.48;
}

.page-intro p { margin: 0 0 1em; }
.page-intro p:last-child { margin-bottom: 0; }

.section-question {
  max-width: 45rem;
  margin: 0 0 clamp(4rem, 8vw, 7rem);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  line-height: 1.42;
}

.lineage-list,
.publication-list,
.field-list { border-top: 1px solid var(--ink); }

.lineage-item,
.field-item {
  display: grid;
  grid-template-columns: minmax(11rem, 16rem) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
  border-bottom: 1px solid var(--rule);
}

.lineage-meta {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding-top: .35rem;
  text-transform: none;
  letter-spacing: .03em;
}

.lineage-meta span:first-child { color: var(--ink); }

.lineage-copy,
.field-item > div:last-child { max-width: 46rem; }

.lineage-copy h3,
.field-item h3,
.publication-item h3 {
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 3.8vw, 3.5rem);
  line-height: 1;
  letter-spacing: -.035em;
  font-weight: 400;
}

.lineage-copy p,
.field-item p,
.publication-item p {
  margin: 0 0 1em;
  font-size: 1.08rem;
}

.lineage-copy .burden {
  margin-bottom: 1.4rem;
  font-size: clamp(1.28rem, 2.1vw, 1.65rem);
  line-height: 1.35;
  font-style: italic;
}

.lineage-copy .advance {
  margin-top: 1.8rem;
  color: var(--quiet);
  font-size: .72rem;
  line-height: 1.6;
  letter-spacing: .03em;
  text-transform: none;
}

.evidence-links {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem 1.35rem;
  margin-top: 1.8rem;
  color: var(--quiet);
  letter-spacing: .03em;
  text-transform: none;
}

.evidence-links a {
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.evidence-links a:hover { color: var(--ink); }

.historical-section { padding-top: clamp(5rem, 10vw, 8rem); }

.placeholder-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 6vw, 5rem);
}

.placeholder-card {
  padding-top: 1.2rem;
  border-top: 1px solid var(--ink);
}

.placeholder-card h2 {
  margin: 1.2rem 0 1.5rem;
  max-width: 14ch;
  font-size: clamp(1.8rem, 3.3vw, 3rem);
  line-height: 1.05;
  letter-spacing: -.03em;
  font-weight: 400;
}

.placeholder-card p:last-child {
  max-width: 32rem;
  color: #3f3e38;
}

.publication-item {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: clamp(2rem, 5vw, 4rem) 0;
  border-bottom: 1px solid var(--rule);
}

.publication-item h3 {
  max-width: 28ch;
  font-size: clamp(1.65rem, 3vw, 2.65rem);
}

.publication-venue { color: var(--quiet); font-style: italic; }

.record-indexes {
  margin-top: clamp(4rem, 8vw, 7rem);
  padding-top: 1.2rem;
  border-top: 1px solid var(--ink);
}

.record-indexes > p { margin: 0; font-size: 1.2rem; }

.related-pages {
  width: min(100%, calc(var(--measure) + 2 * var(--pad)));
  margin: 0 auto;
  padding: 0 var(--pad) clamp(6rem, 10vw, 9rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 6vw, 5rem);
}

.related-pages a { border-top: 1px solid var(--ink); }

.site-footer {
  width: min(100%, calc(var(--measure) + 2 * var(--pad)));
  margin: 0 auto;
  padding: 2rem var(--pad) 4rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: 1.5rem;
  border-top: 1px solid var(--ink);
  color: var(--quiet);
  font-size: .92rem;
}

.site-footer > a { width: max-content; }

.footer-logo {
  display: block;
  width: clamp(7.5rem, 12vw, 10.5rem);
  height: auto;
}

.site-footer > :last-child { text-align: right; }
.footer-mark { color: var(--ink); }

@media (max-width: 760px) {
  html { scroll-padding-top: 4.5rem; }

  .site-header {
    gap: 1rem;
    padding-top: .85rem;
    padding-bottom: .85rem;
  }

  .wordmark { width: 3.7rem; height: 2.35rem; }

  .top-nav {
    flex: 1 1 auto;
    gap: 1.1rem;
    overflow-x: auto;
    padding: .4rem .15rem;
    font-size: .65rem;
    scrollbar-width: none;
  }

  .top-nav::-webkit-scrollbar { display: none; }

  .hero { padding-top: 7rem; }
  .hero h1 { font-size: clamp(3.5rem, 18vw, 6rem); }

  .page-hero { padding-top: 8.5rem; }
  .page-hero h1 { font-size: clamp(3.8rem, 18vw, 6.5rem); }

  .chapter,
  .content-section { grid-template-columns: 1fr; }

  .chapter-number,
  .section-rail { margin-bottom: -1rem; }

  .two-column,
  .placeholder-grid,
  .related-pages { grid-template-columns: 1fr; }

  .lineage-item,
  .field-item { grid-template-columns: 1fr; gap: 1.5rem; }

  .lineage-meta {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 1rem;
  }

  .work-item { grid-template-columns: 2.5rem minmax(0, 1fr); gap: 1rem; }

  .publication-item { grid-template-columns: 3.5rem minmax(0, 1fr); gap: 1rem; }

  .site-footer { grid-template-columns: 1fr; }
  .site-footer > :last-child { text-align: left; }
  .footer-mark { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}