:root {
  --ink: #151714;
  --muted: #62665f;
  --paper: #f4f1e8;
  --panel: #e9e5da;
  --line: #cbc6b9;
  --acid: #d5ff36;
  --dark: #20231f;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a { color: inherit; }

.site-header,
main,
footer {
  width: min(1400px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--paper);
  font-family: Georgia, serif;
  font-style: italic;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-pill span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #80a900;
  box-shadow: 0 0 0 4px rgba(128, 169, 0, 0.13);
}

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(390px, 0.75fr);
  gap: 8vw;
  align-items: center;
  padding: 88px 0 96px;
}

.eyebrow,
.section-number,
.map-label,
.map-footer {
  font-size: 11px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow { margin: 0 0 28px; }

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 900px;
  margin-bottom: 28px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(58px, 7.5vw, 116px);
  line-height: 0.91;
  font-weight: 400;
  letter-spacing: -0.055em;
}

.subheadline {
  max-width: 680px;
  margin-bottom: 36px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.4;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 15px 20px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-size: 13px;
  font-weight: 750;
}

.cta span { color: var(--acid); }

.system-map {
  padding: 28px;
  background: var(--dark);
  color: #f5f2e8;
  box-shadow: 18px 18px 0 var(--acid);
}

.map-label { color: #a9ada4; margin-bottom: 60px; }

.map-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 20px 0;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 13px;
}

.map-row span:last-child { text-align: right; }
.map-row.emphasis { color: var(--acid); }
.map-line { height: 1px; background: #4a4e48; }

.map-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 64px;
  color: #858a81;
  font-size: 9px;
}

.section {
  border-top: 1px solid var(--line);
  padding: 104px 0;
}

.intro,
.build-status {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 8vw;
}

.intro h2,
.section-heading h2,
.build-status h2 {
  margin-bottom: 28px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(40px, 5vw, 72px);
  line-height: 1.02;
  font-weight: 400;
  letter-spacing: -0.04em;
}

.intro > div { max-width: 920px; }
.intro p:last-child,
.build-status div > p { max-width: 720px; color: var(--muted); font-size: 19px; }

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 56px;
}

.section-heading h2 { margin: 0; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.card-grid article {
  min-height: 300px;
  padding: 24px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
}

.card-index { color: var(--muted); font: 11px ui-monospace, monospace; }
.card-grid h3 { margin: auto 0 14px; font-size: 21px; }
.card-grid p { margin: 0; color: var(--muted); font-size: 14px; }

.safety { background: var(--ink); color: var(--paper); padding-inline: 40px; }
.safety .section-heading { border-bottom: 1px solid #454940; padding-bottom: 48px; }

.boundary-list { list-style: none; margin: 0; padding: 0; }
.boundary-list li {
  display: grid;
  grid-template-columns: 80px 1fr 1.5fr;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid #454940;
  align-items: baseline;
}

.boundary-list span { color: var(--acid); font: 11px ui-monospace, monospace; }
.boundary-list strong { font-size: 20px; }
.boundary-list p { margin: 0; color: #aaaFA7; }

.build-status { background: var(--acid); padding-inline: 40px; }
.build-status .eyebrow { margin-bottom: 18px; }
.text-cta { display: inline-block; margin-top: 28px; font-weight: 800; }

footer {
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 72px; }
  .system-map { max-width: 620px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .site-header, main, footer { width: min(100% - 28px, 1400px); }
  .site-header { height: 72px; }
  .status-pill { font-size: 9px; }
  .hero { min-height: auto; padding: 64px 0 80px; }
  h1 { font-size: clamp(50px, 16vw, 76px); }
  .system-map { padding: 20px; box-shadow: 10px 10px 0 var(--acid); }
  .map-footer { flex-wrap: wrap; }
  .section { padding: 76px 0; }
  .intro, .build-status { grid-template-columns: 1fr; gap: 36px; }
  .section-heading { display: block; }
  .section-heading .section-number { margin-bottom: 28px; }
  .card-grid { grid-template-columns: 1fr; }
  .card-grid article { min-height: 230px; }
  .safety, .build-status { padding-inline: 22px; }
  .boundary-list li { grid-template-columns: 40px 1fr; }
  .boundary-list p { grid-column: 2; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; }
}