.header-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 28px);
}

.fact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: clamp(44px, 8vw, 110px);
  align-items: end;
  min-height: calc(100svh - 76px);
  padding: clamp(72px, 10vw, 136px) 0;
}

.fact-hero h1 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(64px, 8.6vw, 108px);
  font-weight: 800;
  line-height: .85;
  letter-spacing: -.04em;
  text-wrap: balance;
}

.fact-lede {
  max-width: 600px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.5;
}

.fact-hero blockquote {
  margin: 0;
  padding: clamp(30px, 4vw, 48px);
  border-radius: var(--radius);
  color: var(--white);
  background: var(--dark);
  box-shadow: 0 28px 70px rgba(17, 19, 15, .16);
}

.fact-hero blockquote p {
  margin: 0;
  color: var(--white);
  font-size: clamp(25px, 3vw, 38px);
  font-weight: 720;
  line-height: 1.3;
  letter-spacing: -.03em;
  text-wrap: balance;
}

.fact-hero blockquote::after {
  display: block;
  width: 64px;
  height: 6px;
  margin-top: 38px;
  background: var(--acid);
  content: "";
}

.framework,
.fact-index,
.doors {
  display: grid;
  grid-template-columns: minmax(260px, .78fr) minmax(0, 1.22fr);
  gap: clamp(44px, 8vw, 100px);
  padding: clamp(84px, 11vw, 148px) 0;
  border-top: 1px solid var(--line-strong);
}

.framework header,
.fact-index header,
.doors header { max-width: 470px; }

.framework h2,
.fact-index h2,
.boundaries h2,
.doors h2,
.fact-close h2 {
  margin: 0;
  font-size: clamp(42px, 5.4vw, 70px);
  line-height: .94;
  letter-spacing: -.04em;
  text-wrap: balance;
}

.framework header p,
.fact-index header p,
.doors header p,
.boundaries > div > p {
  max-width: 52ch;
  margin: 24px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.framework-steps article {
  padding: 28px 0 34px;
  border-top: 1px solid var(--line);
}

.framework-steps article:last-child { border-bottom: 1px solid var(--line); }

.framework-steps h3 {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1;
  letter-spacing: -.035em;
}

.framework-steps p {
  max-width: 58ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}

.fact-index dl { margin: 0; }

.fact-index dl > div {
  display: grid;
  grid-template-columns: minmax(120px, .38fr) minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.fact-index dl > div:last-child { border-bottom: 1px solid var(--line); }

.fact-index dt {
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.fact-index dd {
  max-width: 60ch;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
}

.boundaries {
  display: grid;
  grid-template-columns: minmax(260px, .78fr) minmax(0, 1.22fr);
  gap: clamp(44px, 8vw, 100px);
  margin: clamp(32px, 5vw, 72px) 0;
  padding: clamp(42px, 6vw, 72px);
  border-radius: var(--radius);
  color: var(--white);
  background: var(--dark);
  box-shadow: 0 28px 70px rgba(17, 19, 15, .14);
}

.boundaries > div > p { color: var(--dark-copy); }

.boundaries ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.boundaries li {
  padding: 24px 0;
  border-top: 1px solid rgba(247, 246, 240, .18);
}

.boundaries li:last-child { border-bottom: 1px solid rgba(247, 246, 240, .18); }

.boundaries strong,
.boundaries span { display: block; }

.boundaries strong { color: var(--acid); font-size: 18px; }
.boundaries span { max-width: 58ch; margin-top: 8px; color: var(--dark-copy); line-height: 1.55; }

.doors nav { border-top: 1px solid var(--line); }

.doors nav a {
  display: grid;
  grid-template-columns: minmax(150px, .6fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  min-height: 82px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.doors nav span {
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 780;
  letter-spacing: -.03em;
}

.doors nav small {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.fact-close {
  padding: clamp(72px, 11vw, 144px) 0;
  border-top: 1px solid var(--line-strong);
}

.fact-close p {
  max-width: 62ch;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.fact-close > div {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  align-items: center;
  margin-top: 32px;
}

.primary-cta {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--white);
  background: var(--ink);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: .05em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms var(--ease-out), background-color 180ms var(--ease-out), transform 180ms var(--ease-out);
}

.text-cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-size: 14px;
  font-weight: 780;
}

@media (hover: hover) and (pointer: fine) {
  .doors nav a:hover span { color: #496800; }
  .primary-cta:hover { color: var(--ink); background: var(--acid); }
  .primary-cta:active { transform: scale(.98); }
}

@media (max-width: 860px) {
  .fact-hero,
  .framework,
  .fact-index,
  .boundaries,
  .doors { grid-template-columns: 1fr; }

  .fact-hero {
    min-height: auto;
    padding: 72px 0 96px;
  }

  .fact-hero blockquote { max-width: 720px; }
}

@media (max-width: 620px) {
  .site-header { align-items: flex-start; padding-block: 12px; }
  .header-nav { flex-wrap: wrap; justify-content: flex-end; gap: 0 14px; max-width: 190px; }
  .header-nav .quiet-link { min-height: 32px; font-size: 11px; }

  .fact-hero { gap: 38px; padding: 50px 0 76px; }
  .fact-hero h1 { font-size: clamp(54px, 16vw, 72px); }
  .fact-lede { margin-top: 22px; font-size: 18px; }
  .fact-hero blockquote { padding: 28px 24px; }

  .framework,
  .fact-index,
  .doors { gap: 38px; padding: 72px 0; }

  .fact-index dl > div,
  .doors nav a { grid-template-columns: 1fr; gap: 8px; }

  .boundaries {
    gap: 36px;
    margin-inline: -4px;
    padding: 32px 24px;
  }

  .fact-close { padding: 76px 0; }
}

@media (prefers-reduced-motion: reduce) {
  .primary-cta:active { transform: none; }
}