:root {
  --paper: #f2eee5;
  --paper-deep: #e7e0d2;
  --ink: #171713;
  --muted: #625f57;
  --line: #b9b09f;
  --signal: #b63224;
  --signal-dark: #7f2018;
  --white: #fbfaf6;
  --black: #0c0c0a;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1180px, calc(100% - 44px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--serif);
  line-height: 1.55;
}
a { color: inherit; }
img, svg { max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link {
  position: absolute;
  left: 18px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--black);
  color: var(--white);
  font-family: var(--sans);
}
.skip-link:focus { top: 16px; }

.masthead {
  border-top: 8px solid var(--black);
  border-bottom: 1px solid var(--ink);
  background: var(--paper);
}
.utility-bar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 11px 0 9px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.utility-bar p { margin: 0; }
.brand-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 28px;
  padding: 24px 0 18px;
}
.wordmark {
  display: inline-block;
  width: fit-content;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(3rem, 8vw, 6.8rem);
  font-weight: 700;
  line-height: .85;
  letter-spacing: -.075em;
  text-decoration: none;
}
.wordmark span { color: var(--signal); }
.strapline {
  max-width: 250px;
  margin: 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: .88rem;
  line-height: 1.35;
  text-align: right;
}
.primary-nav {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  border-top: 1px solid var(--ink);
}
.primary-nav a {
  flex: 0 0 auto;
  padding: 11px 22px 10px 0;
  margin-right: 22px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  text-transform: uppercase;
}
.primary-nav a:hover,
.primary-nav a:focus,
.primary-nav a[aria-current="page"] { color: var(--signal); }

.lead-story {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(300px, .75fr);
  gap: 54px;
  padding: 62px 0 58px;
}
.kicker,
.section-rule > p,
.brief-label,
.specimen-label,
.document-code,
.side-number,
.ledger-id,
.page-kicker {
  margin: 0;
  color: var(--signal);
  font-family: var(--mono);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.lead-copy h1 {
  max-width: 900px;
  margin: 12px 0 22px;
  font-family: var(--serif);
  font-size: clamp(4.2rem, 9vw, 8.8rem);
  font-weight: 500;
  line-height: .85;
  letter-spacing: -.07em;
}
.dek {
  max-width: 820px;
  margin: 0;
  color: #37352f;
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  line-height: 1.4;
}
.byline-row {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  margin-top: 38px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: .78rem;
}
.byline-row p { margin: 0; }
.front-brief {
  align-self: start;
  padding: 20px 0 0 24px;
  border-top: 5px solid var(--signal);
  border-left: 1px solid var(--line);
}
.front-brief h2 {
  margin: 12px 0 24px;
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  font-weight: 500;
  line-height: 1.05;
}
.front-brief dl { margin: 0; }
.front-brief dl div {
  padding: 13px 0;
  border-top: 1px solid var(--line);
}
.front-brief dt {
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.front-brief dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: .96rem;
}
.arrow-link {
  display: inline-block;
  margin-top: 20px;
  color: var(--signal-dark);
  font-family: var(--sans);
  font-size: .85rem;
  font-weight: 800;
  text-decoration: none;
}
.arrow-link:hover,
.arrow-link:focus { text-decoration: underline; text-underline-offset: 4px; }
.arrow-link.dark { color: var(--white); }

.ticker {
  border-block: 1px solid var(--ink);
  background: var(--white);
}
.ticker-track {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto 1.4fr;
  align-items: stretch;
  gap: 0;
}
.ticker-track span,
.ticker-track strong {
  padding: 12px 14px;
  border-right: 1px solid var(--line);
  font-family: var(--mono);
  font-size: .72rem;
}
.ticker-track span {
  color: var(--signal);
  font-weight: 800;
  letter-spacing: .06em;
}
.ticker-track strong { font-weight: 500; }

.issue-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 56px;
  padding: 76px 0 90px;
}
.section-rule {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  padding-bottom: 12px;
  margin-bottom: 24px;
  border-bottom: 3px solid var(--ink);
}
.section-rule h2 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  font-weight: 500;
  line-height: .95;
  letter-spacing: -.045em;
}
.specimen-label {
  display: inline-block;
  margin-bottom: 8px;
  padding: 5px 8px;
  color: var(--white);
  background: var(--signal);
}
.opportunity-sheet {
  background: var(--white);
  border: 1px solid var(--ink);
  box-shadow: 9px 9px 0 var(--paper-deep);
}
.sheet-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 26px;
  align-items: start;
  padding: 26px 28px;
  border-bottom: 1px solid var(--ink);
}
.sheet-header h3 {
  margin: 5px 0 4px;
  font-size: clamp(2rem, 4vw, 3.55rem);
  font-weight: 500;
  line-height: .98;
}
.sheet-header p:not(.document-code) {
  margin: 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: .85rem;
}
.decision-stamp {
  padding: 11px 12px 9px;
  border: 3px solid var(--signal);
  color: var(--signal);
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .12em;
  transform: rotate(-2deg);
}
.fact-ledger {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  border-bottom: 1px solid var(--ink);
}
.fact-ledger div { padding: 16px 18px; }
.fact-ledger div + div { border-left: 1px solid var(--line); }
.fact-ledger dt {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.fact-ledger dd {
  margin: 5px 0 0;
  font-family: var(--sans);
  font-size: .92rem;
  font-weight: 700;
}
.annotation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}
.annotation-grid section {
  position: relative;
  min-height: 230px;
  padding: 28px 28px 26px 70px;
  border-bottom: 1px solid var(--line);
}
.annotation-grid section:nth-child(odd) { border-right: 1px solid var(--line); }
.annotation-index {
  position: absolute;
  left: 24px;
  top: 23px;
  width: 27px;
  height: 27px;
  margin: 0;
  border: 1px solid var(--signal);
  border-radius: 50%;
  color: var(--signal);
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 800;
  line-height: 25px;
  text-align: center;
}
.annotation-grid h4 {
  margin: 0 0 9px;
  font-family: var(--sans);
  font-size: 1.06rem;
  text-transform: uppercase;
}
.annotation-grid p { margin: 0; }
.evidence-type {
  margin-top: 20px !important;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .68rem;
  text-transform: uppercase;
}
.sheet-footer {
  padding: 20px 28px;
  background: #efe8dc;
  font-size: .96rem;
}
.sheet-footer p { margin: 0; }
.side-column {
  border-top: 3px solid var(--ink);
}
.side-note {
  padding: 24px 0 28px;
  border-bottom: 1px solid var(--line);
}
.side-note h3 {
  margin: 8px 0 10px;
  font-size: 1.45rem;
  line-height: 1.08;
}
.side-note p:not(.side-number) { margin: 0; color: var(--muted); }

.ledger-section {
  padding: 76px 0 88px;
  color: var(--white);
  background: var(--black);
}
.ledger-section .section-rule { border-color: var(--white); }
.ledger-section .section-rule > p { color: #f16b5c; }
.split-heading { align-items: end; }
.research-ledger {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid #514f48;
}
.research-ledger li {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) minmax(220px, .5fr) 90px;
  gap: 24px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid #514f48;
}
.research-ledger h3 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 500;
  line-height: 1.15;
}
.research-ledger p { margin: 0; color: #aaa69d; font-size: .94rem; }
.ledger-status {
  justify-self: end;
  color: #f16b5c;
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.source-register { padding: 86px 0 96px; }
.register-table { border-top: 1px solid var(--ink); }
.register-row {
  display: grid;
  grid-template-columns: 1.2fr .9fr 1.2fr .7fr;
  border-bottom: 1px solid var(--line);
}
.register-row span,
.register-row strong { padding: 15px 12px 14px 0; }
.register-head {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.register-row:not(.register-head) span { color: var(--muted); }
.register-row.held { color: var(--signal-dark); }

.editorial-close {
  padding: 76px 0;
  background: var(--signal);
  color: var(--white);
}
.close-grid {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) 260px;
  gap: 28px;
  align-items: start;
}
.closing-mark {
  margin: -20px 0 0;
  font-size: 8rem;
  line-height: 1;
}
.editorial-close blockquote {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: .98;
  letter-spacing: -.045em;
}
.editorial-close .close-grid > p:last-child {
  margin: 6px 0 0;
  font-family: var(--sans);
  font-size: .9rem;
}

.page-header {
  padding: 58px 0 44px;
  border-bottom: 1px solid var(--ink);
}
.page-header h1 {
  max-width: 900px;
  margin: 12px 0 16px;
  font-size: clamp(3.8rem, 8vw, 7.6rem);
  font-weight: 500;
  line-height: .88;
  letter-spacing: -.06em;
}
.page-header .intro {
  max-width: 780px;
  margin: 0;
  color: #37352f;
  font-size: 1.35rem;
}
.article-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  gap: 58px;
  padding: 58px 0 90px;
}
.article-rail {
  position: sticky;
  top: 22px;
  align-self: start;
  border-top: 3px solid var(--ink);
}
.article-rail p,
.article-rail a {
  display: block;
  margin: 0;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: .8rem;
  text-decoration: none;
}
.article-rail a:hover,
.article-rail a:focus { color: var(--signal); }
.article-body > *:first-child { margin-top: 0; }
.article-body h2 {
  margin: 56px 0 14px;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
  font-size: 2.35rem;
  font-weight: 500;
  line-height: 1.05;
}
.article-body h3 {
  margin: 32px 0 10px;
  font-family: var(--sans);
  font-size: 1.05rem;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.article-body p,
.article-body li { color: #46433d; }
.article-body p { font-size: 1.05rem; }
.article-body table {
  width: 100%;
  margin: 24px 0 34px;
  border-collapse: collapse;
  background: var(--white);
}
.article-body th,
.article-body td {
  padding: 14px 13px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.article-body th {
  font-family: var(--sans);
  font-size: .76rem;
  text-transform: uppercase;
}
.research-notice {
  padding: 18px 20px;
  border-left: 5px solid var(--signal);
  background: var(--white);
}
.note-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.note-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.note-list li:last-child { border-bottom: 1px solid var(--line); }
.note-list time {
  font-family: var(--mono);
  font-size: .72rem;
}
.note-list h2 {
  margin: 0 0 8px;
  padding: 0;
  border: 0;
  font-size: 1.8rem;
}
.note-list p { margin: 0; }

.site-footer {
  padding: 40px 0 34px;
  color: var(--white);
  background: var(--black);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: end;
}
.footer-wordmark { color: var(--white); font-size: 2.6rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-links a {
  color: #cbc6ba;
  font-family: var(--sans);
  font-size: .82rem;
  text-decoration: none;
}
.footer-links a:hover,
.footer-links a:focus { color: #f16b5c; }
.footer-grid > p {
  grid-column: 1 / -1;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid #4a4841;
  color: #96928a;
  font-family: var(--mono);
  font-size: .68rem;
}

@media (max-width: 920px) {
  .lead-story,
  .issue-grid,
  .article-layout { grid-template-columns: 1fr; }
  .front-brief { border-left: 0; padding-left: 0; }
  .ticker-track { grid-template-columns: auto 1fr; }
  .ticker-track strong { border-right: 0; }
  .ticker-track span:nth-of-type(n+2),
  .ticker-track strong:nth-of-type(n+2) { border-top: 1px solid var(--line); }
  .fact-ledger { grid-template-columns: repeat(2, 1fr); }
  .fact-ledger div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .fact-ledger div:nth-child(4) { border-top: 1px solid var(--line); }
  .research-ledger li { grid-template-columns: 74px 1fr 90px; }
  .research-ledger p { grid-column: 2 / -1; }
  .close-grid { grid-template-columns: 64px 1fr; }
  .editorial-close .close-grid > p:last-child { grid-column: 2; }
  .article-rail { position: static; }
}

@media (max-width: 680px) {
  :root { --shell: min(100% - 26px, 1180px); }
  .utility-bar { flex-direction: column; gap: 3px; }
  .brand-row { grid-template-columns: 1fr; }
  .strapline { max-width: none; text-align: left; }
  .wordmark { font-size: 3.7rem; }
  .primary-nav a { margin-right: 16px; padding-right: 16px; }
  .lead-story { padding-top: 42px; gap: 38px; }
  .lead-copy h1 { font-size: 4.35rem; }
  .byline-row { flex-direction: column; gap: 5px; }
  .section-rule { align-items: start; flex-direction: column; }
  .sheet-header { grid-template-columns: 1fr; }
  .decision-stamp { justify-self: start; }
  .fact-ledger,
  .annotation-grid { grid-template-columns: 1fr; }
  .fact-ledger div + div,
  .fact-ledger div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .annotation-grid section:nth-child(odd) { border-right: 0; }
  .annotation-grid section { min-height: 0; }
  .research-ledger li { grid-template-columns: 1fr; gap: 10px; }
  .research-ledger p,
  .ledger-status { grid-column: 1; justify-self: start; }
  .register-row { grid-template-columns: 1fr; padding: 14px 0; }
  .register-head { display: none; }
  .register-row span,
  .register-row strong { padding: 3px 0; }
  .register-row span::before {
    display: inline-block;
    min-width: 115px;
    color: var(--muted);
    font-family: var(--mono);
    font-size: .64rem;
    text-transform: uppercase;
  }
  .register-row span:nth-child(2)::before { content: "Research: "; }
  .register-row span:nth-child(3)::before { content: "Automation: "; }
  .register-row span:nth-child(4)::before { content: "Public use: "; }
  .close-grid { grid-template-columns: 1fr; }
  .closing-mark { display: none; }
  .editorial-close .close-grid > p:last-child { grid-column: 1; }
  .article-layout { padding-top: 38px; }
  .article-rail { display: none; }
  .note-list li { grid-template-columns: 1fr; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; }
}