:root {
  color-scheme: light;
  --ink: #17201d;
  --muted: #5f6863;
  --paper: #f2f0e8;
  --sheet: #fbfaf5;
  --line: #ced2ca;
  --green: #174f3d;
  --green-soft: #d9e7df;
  --amber: #9b5c19;
  --max: 74rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.65 Georgia, "Times New Roman", serif;
}
a { color: inherit; }
a:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 10; padding: .7rem 1rem; background: var(--ink); color: white; }
.skip-link:focus { top: 1rem; }
.site-header, main, .site-footer { width: min(calc(100% - 3rem), var(--max)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.wordmark { display: flex; align-items: baseline; gap: .65rem; text-decoration: none; }
.wordmark span { font-weight: 700; }
.wordmark small, nav, .kicker, .paper-meta, .status, .primary-link, .support-link { font-family: ui-sans-serif, system-ui, sans-serif; }
.wordmark small { color: var(--muted); }
nav { display: flex; gap: 1.25rem; font-size: .9rem; }
nav a { text-underline-offset: .25em; }
.hero { padding: clamp(5rem, 12vw, 9rem) 0 clamp(5rem, 10vw, 8rem); }
.kicker { margin: 0 0 1rem; color: var(--green); font-size: .72rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; font-weight: 400; line-height: 1.06; }
h1 { max-width: 12ch; font-size: clamp(3.4rem, 9vw, 7.6rem); letter-spacing: -.055em; }
h2 { max-width: 15ch; font-size: clamp(2.2rem, 5vw, 4.2rem); letter-spacing: -.035em; }
h3 { font-size: clamp(1.45rem, 3vw, 2.1rem); }
.lede { max-width: 45rem; margin: 2rem 0; color: var(--muted); font-size: clamp(1.1rem, 2vw, 1.35rem); }
.primary-link, .support-link { display: inline-flex; gap: .75rem; align-items: center; padding: .85rem 1rem; border: 1px solid var(--ink); background: var(--ink); color: white; font-size: .9rem; text-decoration: none; }
.section { padding: clamp(4rem, 8vw, 7rem) 0; border-top: 1px solid var(--line); }
.section-heading, .about { display: grid; grid-template-columns: minmax(16rem, 1.1fr) minmax(18rem, .9fr); gap: clamp(2rem, 6vw, 6rem); }
.section-heading { align-items: end; margin-bottom: 3rem; }
.section-heading > p { margin: 0; color: var(--muted); }
.paper-card { display: grid; grid-template-columns: 4rem minmax(0, 1fr) auto; gap: 1.5rem; align-items: center; padding: 2rem 0; border-top: 1px solid var(--line); }
.paper-card:last-child { border-bottom: 1px solid var(--line); }
.paper-number { color: var(--green); font-size: 1.25rem; }
.paper-card p { max-width: 48rem; margin: .75rem 0 0; color: var(--muted); }
.paper-meta { margin-top: 0 !important; color: var(--green) !important; font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.status { justify-self: end; padding: .45rem .65rem; border: 1px solid var(--line); background: var(--sheet); color: var(--muted); font-size: .72rem; white-space: nowrap; }
.research-document { padding: 2.5rem 0 3rem; border-top: 1px solid var(--line); }
.research-document:last-of-type { border-bottom: 1px solid var(--line); }
.document-heading { display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 1.5rem; }
.document-heading h3 { max-width: 32rem; }
.document-subtitle { max-width: 48rem; margin: .75rem 0 0; color: var(--muted); font-size: 1.08rem; }
.document-actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin-top: 1.5rem; }
.download-link { font-family: ui-sans-serif, system-ui, sans-serif; font-size: .9rem; text-underline-offset: .25em; }
.research-library { border-top: 1px solid var(--line); }
.loading-state { color: var(--muted); }
.paper-page { max-width: 52rem; margin: 0 auto; padding: clamp(4rem, 10vw, 8rem) 0; }
.paper-page h1 { max-width: 16ch; font-size: clamp(3rem, 8vw, 6rem); }
.document-lede { max-width: 48rem; margin: 1.5rem 0 .5rem; font-size: clamp(1.2rem, 2.4vw, 1.6rem); }
.document-dek { color: var(--muted); font-size: 1.05rem; }
.document-page-actions { padding: 1.5rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.paper-body { margin-top: 4rem; }
.paper-section { position: relative; padding: 2.5rem 0 3rem; border-top: 1px solid var(--line); }
.paper-section h2 { max-width: 22ch; margin-bottom: 1.5rem; font-size: clamp(1.8rem, 4vw, 3rem); }
.paper-section p { max-width: 43rem; margin: 0 0 1.15rem; font-size: 1.08rem; }
.page-marker { display: block; margin-top: 1.75rem; color: var(--muted); font: .72rem/1.4 ui-sans-serif, system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.paper-note, .source-note { margin-top: 2rem; padding: 1rem 1.25rem; border-left: 3px solid var(--green); background: var(--sheet); color: var(--muted); font: .9rem/1.55 ui-sans-serif, system-ui, sans-serif; }
.scan-pages { margin-top: 4rem; }
.paper-digest { margin-top: 4rem; padding: 2rem clamp(1.25rem, 4vw, 3rem); border: 1px solid var(--line); background: var(--sheet); }
.paper-digest h2 { max-width: 18ch; margin-bottom: 1.5rem; }
.paper-digest p { max-width: 43rem; }
.paper-digest ul { max-width: 43rem; margin: 1.5rem 0 0; padding-left: 1.25rem; }
.paper-digest li { margin: .65rem 0; }
.digest-note { margin-top: 2rem; color: var(--muted); font: .86rem/1.5 ui-sans-serif, system-ui, sans-serif; }
.scan-archive { margin-top: 2rem; }
.scan-archive summary { cursor: pointer; color: var(--green); font: 700 .85rem/1.4 ui-sans-serif, system-ui, sans-serif; letter-spacing: .05em; }
.scan-page { margin: 0 0 3rem; padding: 1rem; border: 1px solid var(--line); background: var(--sheet); box-shadow: 0 1rem 2.5rem rgba(23, 32, 29, .08); }
.scan-page img { display: block; width: 100%; height: auto; }
.scan-page figcaption { padding: .75rem .25rem .1rem; color: var(--muted); font: .75rem/1.4 ui-sans-serif, system-ui, sans-serif; letter-spacing: .06em; text-transform: uppercase; }
.prose { max-width: 42rem; }
.prose > p:first-child { margin-top: .25rem; font-size: 1.15rem; }
.note { margin-top: 2rem; padding-left: 1rem; border-left: 3px solid var(--green); color: var(--muted); font-size: .92rem; }
.support { max-width: 48rem; }
.support h2 { max-width: 12ch; }
.support > p:not(.kicker) { margin: 1.5rem 0 2rem; color: var(--muted); font-size: 1.12rem; }
.support-link.is-pending { border-color: var(--line); background: transparent; color: var(--muted); cursor: default; }
.site-footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.5rem 0 3rem; border-top: 1px solid var(--line); color: var(--muted); font: .8rem/1.4 ui-sans-serif, system-ui, sans-serif; }

@media (max-width: 44rem) {
  .site-header, .site-footer { display: block; }
  nav { margin-top: 1rem; }
  .hero { padding-top: 5rem; }
  .section-heading, .about { grid-template-columns: 1fr; }
  .paper-card { grid-template-columns: 2rem 1fr; align-items: start; }
  .status { grid-column: 2; justify-self: start; }
  .document-heading { grid-template-columns: 2rem 1fr; }
  .paper-page { padding-top: 4rem; }
  .site-footer span { display: block; margin-bottom: .5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  nav, .skip-link, .support-link { display: none; }
  body { background: white; }
  .site-header, main, .site-footer { width: 100%; }
}