/* Two connected chapters: the investment, then the advantage it creates. */
#choose.foundation-story,
#platform.build-manifesto {
  padding: clamp(64px, 7vw, 116px) var(--gutter);
  position: relative;
}
.foundation-shell,
.build-shell { max-width: 1660px; margin-inline: auto; }
#choose.foundation-story {
  background: linear-gradient(110deg, #f8f8f1 35%, #f8f8f1de 75%, #f8f8f1a6);
}
#choose.foundation-story .section-kicker { margin-bottom: clamp(40px, 5vw, 76px); }
.foundation-opening {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 40px;
  align-items: end;
}
#choose #foundation-title {
  margin: 0;
  font-size: clamp(68px, 10.6vw, 170px);
  font-weight: 900;
  line-height: .88;
  letter-spacing: -.075em;
}
.foundation-signature { padding-bottom: 5px; text-align: center; }
.foundation-signature img { width: 140px; height: 140px; margin: 0 auto 13px; }
.foundation-signature > span {
  display: block;
  color: #0d3d32;
  font: 500 12px/1.7 var(--mono);
  letter-spacing: .08em;
}
.foundation-signature small {
  display: block;
  margin-top: 7px;
  font-size: 9px;
  line-height: 1.6;
  color: #536a60;
}
.foundation-narrative {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(36px, 7vw, 120px);
  padding-top: clamp(42px, 5vw, 74px);
  margin-top: clamp(42px, 5vw, 74px);
  border-top: 1px solid var(--line);
}
.foundation-statement {
  font-size: clamp(29px, 3.2vw, 48px);
  line-height: 1.15;
  letter-spacing: -.045em;
  font-weight: 600;
}
.foundation-statement em {
  display: block;
  margin-top: 9px;
  color: #008778;
  font: italic 500 1.17em/1.12 var(--serif);
  letter-spacing: -.035em;
}
.foundation-copy p {
  margin: 0 0 20px;
  max-width: 51ch;
  color: #4f655c;
  font-size: clamp(16px, 1.35vw, 21px);
  line-height: 1.65;
}
.foundation-copy strong { color: #0b3027; font-weight: 600; }
.foundation-copy p.foundation-purpose { color: #0b3027; margin-bottom: 0; }
.foundation-scale {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 32px;
  margin-top: clamp(42px, 6vw, 85px);
  padding-block: 29px;
  border-block: 1px solid var(--line);
}
.foundation-scale > div { display: flex; align-items: center; gap: clamp(15px, 2vw, 32px); min-width: 0; }
.foundation-scale strong {
  display: block;
  position: relative;
  font-size: clamp(54px, 5.5vw, 82px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.07em;
  color: #0c3b30;
}
.foundation-scale strong small {
  display: block;
  margin-bottom: 4px;
  font: 500 9px/1 var(--mono);
  letter-spacing: .06em;
  color: #587268;
}
.foundation-scale span {
  font: 500 10px/1.7 var(--mono);
  letter-spacing: .03em;
  color: #526b60;
}
.foundation-bridge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  padding-top: 36px;
  color: #536b60;
  font: 500 10px/1.9 var(--mono);
  letter-spacing: .06em;
}
.foundation-bridge strong { color: #123b30; font-weight: 500; }
.foundation-bridge > span:last-child { font: 400 38px/1 'Geist', sans-serif; color: #008e7d; }
.foundation-bridge:hover strong { color: #008e7d; }

#platform.build-manifesto {
  color: #eff5ec;
  background: radial-gradient(ellipse at 100% 0%, #164e40, #062b23 48%, #04231c);
}
#platform.build-manifesto .section-kicker { color: #adcbba; margin-bottom: 52px; }
#platform.build-manifesto .section-kicker > span:first-child { color: #85dfc4; }
#platform.build-manifesto .section-kicker a:hover { color: #fff; }
#platform .build-monument {
  display: flex;
  align-items: center;
  gap: clamp(25px, 5vw, 85px);
  margin: 0;
  color: #eff5ec;
}
.build-thirty {
  display: block;
  font-size: clamp(180px, 30vw, 490px);
  font-weight: 600;
  line-height: .76;
  letter-spacing: -.095em;
  margin-left: -.035em;
}
.build-unit {
  display: block;
  padding-top: .04em;
  font-size: clamp(53px, 9.8vw, 158px);
  line-height: .94;
  letter-spacing: -.065em;
  font-weight: 900;
}
.build-payoff {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  margin-top: clamp(28px, 4vw, 57px);
  padding-bottom: clamp(35px, 4.2vw, 64px);
  border-bottom: 1px solid #a8e5c936;
}
.build-payoff p {
  margin: 0;
  color: #8ae0c6;
  font: italic 500 clamp(40px, 5.4vw, 85px)/1.1 var(--serif);
  letter-spacing: -.04em;
}
.build-payoff > span { color: #b1d3c1; font: 500 10px/1.7 var(--mono); letter-spacing: .07em; }
.build-explanation {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(35px, 6vw, 100px);
  margin-top: clamp(34px, 4.5vw, 65px);
}
.build-explanation h3 {
  font-size: clamp(30px, 3.3vw, 50px);
  font-weight: 600;
  line-height: 1.13;
  letter-spacing: -.045em;
  margin: 0;
}
.build-explanation h3 em { color: #8ae0c6; font-style: normal; }
.build-explanation p {
  color: #b6cebf;
  max-width: 54ch;
  font-size: clamp(16px, 1.3vw, 20px);
  line-height: 1.7;
  margin: 0 0 15px;
}
.build-explanation p:last-child { margin-bottom: 0; }
.build-months { white-space: nowrap; }
.build-route {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  list-style: none;
  padding: 0;
  margin: clamp(34px, 4.5vw, 66px) 0 36px;
}
.build-route li { position: relative; padding: 28px 25px 0 0; border-top: 1px solid #76d9b865; }
.build-route li:last-child { padding-right: 0; }
.build-route-point { position: absolute; top: -4px; left: 0; width: 7px; height: 7px; background: #8ae0c6; border-radius: 50%; box-shadow: 0 0 0 5px #8ae0c60c; }
.build-route-label { display: block; color: #8ae0c6; font: 500 10px/1.7 var(--mono); letter-spacing: .03em; }
.build-route strong { display: block; font-size: 22px; font-weight: 600; letter-spacing: -.03em; margin: 13px 0 7px; }
.build-route p { color: #b6cebf; font-size: 14px; line-height: 1.6; margin: 0; max-width: 30ch; }
.build-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px 38px; }
#platform .build-actions .button { background: #8ae0c6; color: #062b23; border: 1px solid #8ae0c6; min-height: 58px; padding: 18px 24px; font: 500 11px/1.5 var(--mono); display: inline-flex; align-items: center; justify-content: space-between; gap: 35px; }
#platform .build-actions .button:hover { background: #b1f0d9; }
#platform .build-actions .text-button { color: #e1f2e6; border-color: #76d9b865; font-size: 10px; }
#platform .build-actions .button > span { font: 400 27px/1 'Geist', sans-serif; }
.build-scope { color: #a3c3b1; margin: 20px 0 33px; font-size: 12px; line-height: 1.7; max-width: 93ch; }
.build-inclusions { border-block: 1px solid #a8e5c936; }
.build-inclusions summary { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0; font-size: 15px; cursor: pointer; list-style: none; }
.build-inclusions summary::-webkit-details-marker { display: none; }
.build-inclusions summary > span { font-size: 26px; line-height: 1; color: #8ae0c6; transition: transform .2s; }
.build-inclusions[open] summary > span { transform: rotate(45deg); }
.build-inclusions-content { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 45px; padding: 7px 0 26px; }
.build-inclusions-content h4 { font-size: 21px; font-weight: 600; margin: 0 0 10px; letter-spacing: -.03em; }
.build-inclusions-content p { color: #b6cebf; font-size: 15px; margin: 0; max-width: 48ch; }
.build-inclusions-content > a { grid-column: 1 / -1; color: #8ae0c6; font: 500 10px/1.7 var(--mono); display: flex; align-items: center; gap: 20px; min-height: 44px; width: fit-content; }
.build-inclusions-content > a span { font-size: 23px; }
#platform.build-manifesto :is(a, summary):focus-visible { outline-color: #a5f3d7; }

@media (max-width: 1050px) {
  .foundation-opening { grid-template-columns: minmax(0, 1fr) 125px; gap: 20px; }
  .foundation-signature img { width: 105px; height: 105px; }
  .foundation-signature > span { font-size: 10px; }
  .foundation-signature small { font-size: 8px; }
  .foundation-narrative { gap: 35px; grid-template-columns: .9fr 1fr; }
  .foundation-scale { gap: 24px; }
  .foundation-scale > div { gap: 15px; }
  .foundation-scale span { font-size: 10px; }
  .build-payoff > span { max-width: 16ch; }
}
@media (max-width: 700px) {
  #choose.foundation-story, #platform.build-manifesto { padding-block: 58px; }
  #choose.foundation-story .section-kicker { margin-bottom: 36px; flex-wrap: wrap; gap: 8px; }
  #choose.foundation-story .section-kicker > span:last-child { font-size: 9px; }
  .foundation-opening { display: block; }
  #choose #foundation-title { font-size: clamp(50px, 12.5vw, 88px); line-height: .94; }
  .foundation-signature { display: flex; gap: 12px; align-items: center; text-align: left; padding: 0; margin-top: 25px; }
  .foundation-signature img { width: 51px; height: 51px; margin: 0; }
  .foundation-signature > span { font-size: 11px; }
  .foundation-signature small { font-size: 10px; margin-top: 1px; }
  .foundation-signature small br { display: none; }
  .foundation-narrative { grid-template-columns: 1fr; gap: 24px; margin-top: 30px; padding-top: 30px; }
  .foundation-statement { font-size: clamp(26px, 5.8vw, 40px); margin-bottom: 0; }
  .foundation-statement em { font-size: 1.15em; }
  .foundation-copy p { font-size: 16px; line-height: 1.7; margin-bottom: 17px; max-width: 60ch; }
  .foundation-scale { margin-top: 32px; padding-block: 24px; gap: 18px; grid-template-columns: 1fr 1fr 1.25fr; align-items: stretch; }
  .foundation-scale > div { display: grid; grid-template-rows: 76px auto; align-items: end; gap: 12px; }
  .foundation-scale strong { font-size: clamp(44px, 9vw, 65px); }
  .foundation-scale span { align-self: start; font-size: 10px; line-height: 1.65; letter-spacing: 0; }
  .foundation-scale strong small { font-size: 9px; margin-bottom: 5px; }
  .foundation-bridge { font-size: 9px; padding-top: 26px; letter-spacing: 0; }
  .foundation-bridge > span:last-child { font-size: 32px; }
  #platform.build-manifesto .section-kicker { margin-bottom: 38px; align-items: flex-start; }
  #platform .build-monument { gap: clamp(14px, 4vw, 28px); }
  .build-thirty { font-size: clamp(119px, 30vw, 210px); }
  .build-unit { font-size: clamp(34px, 9.1vw, 64px); line-height: .96; letter-spacing: -.06em; }
  .build-payoff { display: block; margin-top: 30px; padding-bottom: 29px; }
  .build-payoff p { font-size: clamp(33px, 7.8vw, 55px); }
  .build-payoff > span { display: block; max-width: none; margin-top: 20px; font-size: 9px; }
  .build-explanation { grid-template-columns: 1fr; margin-top: 30px; gap: 22px; }
  .build-explanation h3 { font-size: clamp(28px, 5.8vw, 38px); }
  .build-explanation p { font-size: 16px; line-height: 1.7; }
  .build-route { grid-template-columns: 1fr; margin: 30px 0; }
  .build-route li { padding: 0 0 26px 24px; border-top: 0; border-left: 1px solid #76d9b865; }
  .build-route li:last-child { padding-bottom: 0; }
  .build-route-point { left: -4px; top: 5px; }
  .build-route strong { margin-top: 7px; font-size: 22px; }
  .build-route p { max-width: 45ch; font-size: 14px; }
  #platform .build-actions { align-items: stretch; flex-direction: column; gap: 14px; }
  #platform .build-actions .button { min-height: 56px; padding: 16px 20px; font-size: 10px; gap: 15px; }
  #platform .build-actions .text-button { min-height: 46px; font-size: 9px; justify-content: space-between; }
  .build-scope { font-size: 11px; margin-bottom: 25px; }
  .build-inclusions summary { font-size: 14px; }
  .build-inclusions-content { grid-template-columns: 1fr; gap: 23px; }
}
@media (max-width: 360px) {
  #choose #foundation-title { font-size: 45px; }
  .foundation-scale { gap: 11px; }
  .foundation-scale span { font-size: 10px; }
  .build-thirty { font-size: 104px; }
  .build-unit { font-size: 30px; }
  #platform .build-monument { gap: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  .build-inclusions summary > span { transition: none; }
}
html[data-motion="reduced"] .build-inclusions summary > span { transition: none; }