:root {
  --ink: #22262b;
  --paper: #ffffff;
  --soft: #f3f3f1;
  --signal: #b32430;
  --muted: #686c70;
  --line: rgba(34, 38, 43, 0.16);
  --shell: min(1180px, calc(100vw - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "IBM Plex Mono", monospace;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: var(--shell); margin-inline: auto; }
.reading-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 100; }
.reading-progress span { display: block; height: 100%; width: 0; background: var(--signal); }
.is-embedded .reading-progress { display: none; }

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: var(--shell);
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--signal);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -.05em;
}
.brand-name { font-size: 12px; line-height: 1.05; text-transform: uppercase; letter-spacing: .06em; }
.desktop-nav { display: flex; gap: 30px; }
.desktop-nav a { text-decoration: none; color: rgba(255,255,255,.68); font-size: 12px; transition: color .2s; }
.desktop-nav a:hover { color: white; }
.confidential { display: flex; align-items: center; gap: 9px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.confidential span { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 5px rgba(179,36,48,.18); }

.section-dark { background: var(--ink); color: white; }
.hero { min-height: 860px; padding-top: 172px; overflow: hidden; position: relative; }
.hero::before { content: ""; position: absolute; width: 1px; top: 0; bottom: 0; left: calc(50% + 200px); background: rgba(255,255,255,.07); }
.hero::after { content: ""; position: absolute; width: 560px; height: 560px; right: -320px; top: 180px; border: 1px solid rgba(255,255,255,.08); border-radius: 50%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(320px, .65fr); gap: 96px; align-items: center; }
.eyebrow { margin: 0 0 28px; color: var(--signal); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .14em; }
.eyebrow.light { color: rgba(255,255,255,.55); }
.partnership { margin: 0 0 24px; font-size: 14px; color: rgba(255,255,255,.84); }
.partnership span { color: var(--signal); padding: 0 8px; }
h1, h2, h3 { margin-top: 0; font-family: "DM Serif Display", Georgia, serif; font-weight: 400; line-height: 1.03; }
h1 { max-width: 780px; margin-bottom: 32px; font-size: clamp(54px, 6.2vw, 88px); letter-spacing: -.035em; }
h1 em, h2 em { color: var(--signal); font-weight: 400; }
.hero-intro { max-width: 700px; margin: 0; color: rgba(255,255,255,.68); font-size: 17px; line-height: 1.75; }
.hero-actions { margin-top: 42px; display: flex; align-items: center; gap: 32px; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; padding: 0 22px; border: 1px solid transparent; text-decoration: none; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--signal); color: white; }
.button-primary:hover { background: #9e1e29; }
.text-link { padding-bottom: 4px; text-decoration: none; font-size: 12px; border-bottom: 1px solid currentColor; }
.light-link { color: rgba(255,255,255,.68); }

.pilot-board { position: relative; min-height: 550px; padding: 32px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.035); }
.pilot-board::before { content: ""; position: absolute; top: -1px; left: -1px; width: 4px; height: 100px; background: var(--signal); }
.board-head { display: flex; justify-content: space-between; color: rgba(255,255,255,.48); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.board-number { margin-top: 42px; font-family: "DM Serif Display", serif; font-size: 150px; line-height: .76; letter-spacing: -.08em; }
.board-label { margin: 20px 0 28px 7px; color: rgba(255,255,255,.66); font-size: 13px; line-height: 1.45; text-transform: uppercase; letter-spacing: .07em; }
.board-rule { height: 1px; background: rgba(255,255,255,.2); }
.board-metrics { margin: 0; }
.board-metrics div { display: grid; grid-template-columns: 64px 1fr; align-items: center; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.board-metrics dt { color: var(--signal); font-family: "DM Serif Display", serif; font-size: 28px; }
.board-metrics dd { margin: 0; color: rgba(255,255,255,.62); font-size: 11px; line-height: 1.45; }
.board-note { margin: 25px 0 0; color: rgba(255,255,255,.4); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.hero-footer { position: absolute; z-index: 1; left: 50%; bottom: 0; transform: translateX(-50%); min-height: 80px; display: flex; align-items: center; justify-content: space-between; color: rgba(255,255,255,.42); border-top: 1px solid rgba(255,255,255,.12); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }

.section { padding: 128px 0; }
.two-col { display: grid; grid-template-columns: 180px 1fr; gap: 70px; }
.section-index { padding-top: 8px; }
.section-index span { color: var(--signal); font-family: "DM Serif Display", serif; font-size: 44px; line-height: 1; }
.section-index p { margin: 10px 0 0; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .14em; }
.section-index.inline { display: flex; align-items: center; gap: 16px; padding: 0; }
.section-index.inline span { font-size: 30px; }
.section-index.inline p { margin: 0; }
.section-content h2, .section-heading h2, .economics h2, .final-cta h2 { max-width: 900px; margin-bottom: 32px; font-size: clamp(44px, 5vw, 68px); letter-spacing: -.028em; }
.section-content > p { max-width: 820px; color: var(--muted); }
.section-content .lead { color: var(--ink); font-size: 19px; line-height: 1.75; }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 72px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principles-grid article { min-height: 245px; padding: 28px 28px 28px 0; }
.principles-grid article + article { padding-left: 28px; border-left: 1px solid var(--line); }
.principles-grid span, .outcomes-grid span { color: var(--signal); font-size: 10px; }
.principles-grid h3 { margin: 38px 0 14px; font-size: 25px; }
.principles-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.programs { background: var(--soft); }
.section-heading { display: grid; grid-template-columns: 180px 1fr; column-gap: 70px; }
.section-heading h2 { grid-column: 2; margin-top: 24px; }
.section-heading > p { grid-column: 2; max-width: 720px; margin: -8px 0 64px; color: var(--muted); }
.program-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.program-card { min-height: 600px; display: flex; flex-direction: column; padding: 42px; background: white; border-top: 4px solid var(--signal); }
.program-card.dark-card { color: white; background: var(--ink); }
.program-topline { display: flex; align-items: center; justify-content: space-between; padding-bottom: 24px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.dark-card .program-topline { color: rgba(255,255,255,.45); border-color: rgba(255,255,255,.16); }
.program-topline b { color: var(--signal); font-family: "DM Serif Display", serif; font-size: 28px; font-weight: 400; }
.program-domain { margin: 48px 0 18px; color: var(--signal); font-size: 10px; text-transform: uppercase; letter-spacing: .12em; }
.program-card h3 { max-width: 470px; margin-bottom: 24px; font-size: clamp(35px, 4vw, 50px); }
.program-promise { margin: 0; color: var(--muted); font-size: 14px; }
.dark-card .program-promise { color: rgba(255,255,255,.58); }
.audience { display: flex; flex-wrap: wrap; gap: 8px; margin: 32px 0; }
.audience span { padding: 6px 9px; color: var(--muted); border: 1px solid var(--line); font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.dark-card .audience span { color: rgba(255,255,255,.52); border-color: rgba(255,255,255,.18); }
details { margin-top: auto; border-top: 1px solid var(--line); }
.dark-card details { border-color: rgba(255,255,255,.18); }
summary { display: flex; justify-content: space-between; padding: 22px 0 0; cursor: pointer; list-style: none; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
summary::-webkit-details-marker { display: none; }
summary span { color: var(--signal); font-size: 18px; transition: transform .2s; }
details[open] summary span { transform: rotate(45deg); }
.details-body { padding-top: 20px; color: var(--muted); font-size: 12px; }
.dark-card .details-body { color: rgba(255,255,255,.56); }

.decision { border-bottom: 1px solid var(--line); }
.filters { margin: 64px 0 48px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.filters li { display: grid; grid-template-columns: 72px 1fr; align-items: center; min-height: 86px; border-bottom: 1px solid var(--line); }
.filters li > span { color: var(--signal); font-family: "DM Serif Display", serif; font-size: 22px; }
.filters p { display: grid; grid-template-columns: 170px 1fr; margin: 0; color: var(--muted); font-size: 13px; }
.filters strong { color: var(--ink); text-transform: uppercase; letter-spacing: .06em; }
.decision-path { display: flex; align-items: center; gap: 12px; font-size: 9px; letter-spacing: .08em; }
.decision-path span { padding: 7px 10px; border: 1px solid var(--line); }
.decision-path span.go { color: white; background: var(--signal); border-color: var(--signal); }
.decision-path i { flex: 1; height: 1px; background: var(--line); }

.model { position: relative; overflow: hidden; }
.model::after { content: "×"; position: absolute; right: -20px; top: 180px; color: rgba(255,255,255,.025); font-family: "DM Serif Display", serif; font-size: 520px; line-height: .5; }
.model-heading { position: relative; z-index: 1; }
.light-index p { color: rgba(255,255,255,.44); }
.model-heading h2 { max-width: 1030px; }
.roles-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 72px; border: 1px solid rgba(255,255,255,.18); }
.role-card { min-height: 455px; padding: 38px 34px; }
.role-card + .role-card { border-left: 1px solid rgba(255,255,255,.18); }
.role-card.featured { background: white; color: var(--ink); }
.role-label { margin: 0 0 58px; color: var(--signal); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.role-card h3 { margin-bottom: 26px; font-size: 34px; }
.role-card ul { margin: 0; padding: 0; list-style: none; }
.role-card li { position: relative; padding: 10px 0 10px 18px; color: rgba(255,255,255,.57); border-bottom: 1px solid rgba(255,255,255,.1); font-size: 11px; line-height: 1.45; }
.role-card.featured li { color: var(--muted); border-color: var(--line); }
.role-card li::before { content: ""; position: absolute; left: 0; top: 18px; width: 5px; height: 5px; background: var(--signal); }

.timeline { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 72px; border-top: 1px solid var(--line); }
.timeline::before { content: ""; position: absolute; left: 0; top: -2px; width: 16.66%; height: 3px; background: var(--signal); }
.timeline article { min-height: 270px; padding: 28px 22px 20px 0; }
.timeline article + article { padding-left: 22px; border-left: 1px solid var(--line); }
.timeline article > span { color: var(--signal); font-family: "DM Serif Display", serif; font-size: 27px; }
.timeline small { display: block; margin: 28px 0 13px; color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.timeline h3 { margin-bottom: 12px; font-size: 26px; }
.timeline p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }

.economics { color: white; background: var(--signal); }
.economics-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 110px; }
.economics .eyebrow { color: rgba(255,255,255,.62); }
.economics h2 { max-width: 650px; }
.economics-title > p:last-child { max-width: 600px; color: rgba(255,255,255,.66); }
.economics-list { padding-left: 40px; border-left: 1px solid rgba(255,255,255,.28); }
.economics-list > p { margin-top: 0; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.economics-list ul { margin: 22px 0 0; padding: 0; list-style: none; }
.economics-list li { display: grid; grid-template-columns: 56px 1fr; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.24); font-size: 12px; }
.economics-list li span { color: rgba(255,255,255,.52); }

.outcomes-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 60px; background: var(--line); border: 1px solid var(--line); }
.outcomes-grid article { min-height: 145px; padding: 24px; background: white; }
.outcomes-grid p { max-width: 310px; margin: 28px 0 0; font-family: "DM Serif Display", serif; font-size: 21px; line-height: 1.25; }

.final-cta { padding: 128px 0; background: var(--soft); }
.cta-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 110px; align-items: center; }
.final-cta h2 { max-width: 710px; margin: 0; }
.cta-panel { position: relative; padding: 42px; background: var(--ink); color: white; }
.cta-panel::before { content: ""; position: absolute; left: 0; top: 0; width: 4px; height: 100%; background: var(--signal); }
.cta-duration { display: inline-block; margin-bottom: 38px; color: var(--signal); font-family: "DM Serif Display", serif; font-size: 48px; }
.cta-panel h3 { margin-bottom: 15px; font-size: 34px; }
.cta-panel > p { color: rgba(255,255,255,.56); font-size: 12px; }
.cta-panel ul { margin: 24px 0 32px; padding: 0; list-style: none; }
.cta-panel li { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: 11px; }
.button.full { width: 100%; }
.cta-panel small { display: block; margin-top: 16px; color: rgba(255,255,255,.38); font-size: 9px; text-align: center; }

footer { padding: 60px 0; color: white; background: var(--ink); border-top: 1px solid rgba(255,255,255,.14); }
.footer-grid { display: grid; grid-template-columns: 180px 260px 1fr; gap: 70px; align-items: start; }
.footer-brand { color: white; }
.footer-grid > p { margin: 0; color: rgba(255,255,255,.5); font-size: 10px; line-height: 1.6; }
.footer-grid .legal { text-align: right; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  :root { --shell: min(100% - 40px, 760px); }
  .desktop-nav { display: none; }
  .hero { min-height: auto; padding-bottom: 120px; }
  .hero-grid { grid-template-columns: 1fr; gap: 70px; }
  .hero::before { left: 70%; }
  .pilot-board { min-height: 520px; }
  .hero-footer { display: none; }
  .two-col, .section-heading, .economics-grid, .cta-grid { grid-template-columns: 1fr; gap: 40px; }
  .section-heading h2, .section-heading > p { grid-column: 1; }
  .section-heading h2 { margin-top: 0; }
  .program-grid, .roles-grid { grid-template-columns: 1fr; }
  .role-card + .role-card { border-left: 0; border-top: 1px solid rgba(255,255,255,.18); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { width: 50%; }
  .timeline article:nth-child(odd) { border-left: 0; padding-left: 0; }
  .timeline article:nth-child(even) { padding-left: 22px; border-left: 1px solid var(--line); }
  .economics-list { padding-left: 0; border-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid .legal { grid-column: 1 / -1; text-align: left; }
}

@media (max-width: 620px) {
  :root { --shell: calc(100% - 32px); }
  body { font-size: 15px; }
  .site-header { height: 76px; }
  .brand-mark { width: 36px; height: 36px; }
  .confidential { font-size: 9px; }
  .hero { padding-top: 130px; }
  h1 { font-size: 48px; }
  .partnership { font-size: 11px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .pilot-board { min-height: auto; padding: 26px; }
  .board-number { font-size: 118px; }
  .section { padding: 88px 0; }
  .section-content h2, .section-heading h2, .economics h2, .final-cta h2 { font-size: 43px; }
  .principles-grid, .program-grid, .outcomes-grid { grid-template-columns: 1fr; }
  .principles-grid article, .principles-grid article + article { min-height: auto; padding: 28px 0; border-left: 0; border-top: 1px solid var(--line); }
  .principles-grid article:first-child { border-top: 0; }
  .program-card { min-height: 0; padding: 30px 24px; }
  .program-card h3 { font-size: 38px; }
  .filters li { grid-template-columns: 50px 1fr; padding: 14px 0; }
  .filters p { grid-template-columns: 1fr; gap: 4px; }
  .decision-path { flex-wrap: wrap; }
  .decision-path i { min-width: 14px; }
  .roles-grid { margin-top: 48px; }
  .role-card { min-height: auto; padding: 30px 24px; }
  .timeline { grid-template-columns: 1fr; }
  .timeline::before { width: 100%; }
  .timeline article, .timeline article:nth-child(even) { min-height: auto; padding: 28px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .cta-panel { padding: 34px 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid .legal { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .button { transition: none; }
}