:root { --font-family: "Plex", Arial, sans-serif; }
html { scroll-padding-top: 6rem; }
body, .perspective-system text { font-family: var(--font-family); }
body { font-size: 18px; }
h1, h2, h3 { font-weight: 400; }
.masthead { grid-template-columns: 1fr auto 1fr; min-height: 80px; }
.wordmark img { width: 230px; }
.launch-navigation { display: flex; align-items: center; gap: 32px; font-size: 16px; }
.launch-contact { justify-self: end; padding: 10px 22px; border: 1px solid var(--ink); font-size: 16px; }
.launch-navigation a:hover { color: var(--signal); }
.launch-contact:hover { color: var(--white); background: var(--ink); }
.campaign-hero, .campaign-hero-copy { min-height: 780px; }
.campaign-hero { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
.campaign-hero-copy { padding: 64px clamp(24px, 4vw, 68px); }
.campaign-hero-copy h1 { font-size: clamp(48px, 4.7vw, 78px); line-height: 1.03; }
.eyebrow { font-size: 14px; text-transform: none; letter-spacing: .035em; }
.lede { font-size: 19px; line-height: 1.55; }
.hero-links a { font-size: 15px; text-transform: none; letter-spacing: 0; }
.campaign-facts dt { font-size: 14px; text-transform: none; }
.campaign-facts dd { font-size: 16px; }
.hero-figure-container { display: flex; flex-direction: column; min-width: 0; background: var(--white); }
.hero-perspective { height: 100%; justify-content: center; }
.hero-perspective svg { flex: 0 0 auto; height: auto; aspect-ratio: 1392 / 648; margin-block: auto; }
.perspective-system text { font-size: 18px; letter-spacing: 0; }
.perspective-system figcaption { position: static; min-height: 44px; padding: 8px 16px; font-size: 14px; letter-spacing: .025em; text-transform: none; }
.input-plane rect { fill: var(--white); }
.campaign-mobile-record { display: none; }
.section-heading { display: grid; grid-template-columns: .4fr 1.3fr 1fr; gap: 30px; }
.section-heading > * { min-width: 0; }
.section-heading > p:last-child { font-size: 18px; line-height: 1.55; }
.campaign-section-heading h2, .foundation-section h2 { font-size: clamp(38px, 4.2vw, 64px); line-height: 1.05; }
.sequence-perspective { aspect-ratio: auto; }
.sequence-perspective svg { flex: 0 0 auto; height: auto; aspect-ratio: 1200 / 624; }
.campaign-step-list li { min-height: 270px; padding: 24px; }
.campaign-step-list span { font-size: 14px; }
.campaign-step-list h3 { font-size: 25px; line-height: 1.15; }
.campaign-step-list p, .durable-grid p { font-size: 16px; line-height: 1.5; }
.architecture-diagram-wrap { padding: 24px; }
.architecture-explanation { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 32px; color: var(--slate); font-size: 18px; }
.architecture-explanation strong { color: var(--ink); font-weight: 400; }
.os-map figcaption { font-size: 14px; text-transform: none; letter-spacing: .025em; padding: 10px 16px; }
.os-board { grid-template-columns: 19% 3% minmax(0, 1fr) 3% minmax(0, 1fr) 3% 19%; grid-template-rows: minmax(110px, auto) 20px minmax(220px, auto) 26px minmax(120px, auto) 30px minmax(125px, auto) 42px; min-height: 800px; padding: 22px; overflow: visible; }
.os-node, .runtime-chip { padding: 16px; }
.os-node > span, .runtime-chip > span, .ontology-runtime article > span { font-size: 12px; text-transform: none; letter-spacing: .02em; }
.os-node strong, .runtime-chip strong, .ontology-runtime strong { font-size: 18px; font-weight: 400; line-height: 1.2; }
.os-node small, .runtime-chip small, .ontology-runtime small { font-size: 14px; line-height: 1.3; }
.ontology-plane { min-width: 0; padding: 16px; }
.ontology-plane > header { gap: 16px; align-items: flex-start; }
.ontology-plane > header div { align-items: flex-start; flex-direction: column; gap: 4px; }
.ontology-plane > header span { font-size: 14px; text-transform: none; }
.ontology-plane > header strong { font-size: 26px; font-weight: 400; }
.ontology-plane > header small { font-size: 13px; text-align: right; max-width: 160px; }
.ontology-runtime { gap: 10px; margin-top: 16px; }
.ontology-runtime article { min-height: 118px; padding: 12px; }
.semantic-bus { margin-top: 16px; }
.semantic-bus span { min-width: 0; font-size: 12px; padding: 10px 5px; letter-spacing: 0; text-transform: none; overflow-wrap: anywhere; }
.core-chip { width: 62%; }
.os-legend { font-size: 12px; }
.durable-grid h3 { font-size: 30px; }
.durable-grid span { font-size: 14px; }
.foundation-copy { grid-template-columns: .4fr 1.3fr 1fr; }
.foundation-copy > p:last-child { font-size: 18px; line-height: 1.55; }
.foundation-map span, .foundation-map small { font-size: 15px; text-transform: none; letter-spacing: 0; }
.foundation-map strong { font-size: 34px; }
.closing { padding: 90px clamp(24px, 5vw, 78px); }
.closing h2 { font-size: clamp(40px, 4.2vw, 64px); }
.closing p:last-child { margin-top: 24px; color: var(--slate); font-size: 18px; }
.closing > a { width: fit-content; min-width: 220px; min-height: 56px; justify-self: end; align-self: center; justify-content: center; padding: 14px 28px; border: 1px solid var(--ink); background: var(--ink); color: var(--white); font-size: 17px; text-transform: none; letter-spacing: 0; }
.closing > a:hover { background: var(--signal); border-color: var(--signal); }
.launch-footer { display: flex; justify-content: space-between; gap: 24px; padding: 28px clamp(24px, 5vw, 78px); border-top: 1px solid var(--ink); color: var(--slate); font-size: 15px; }
.launch-footer p { margin: 0; font-style: italic; }
@media (max-width: 1200px) {
  .campaign-hero { grid-template-columns: 1fr; }
  .campaign-hero-copy { min-height: 0; border-right: 0; border-bottom: 1px solid var(--ink); }
  .campaign-hero-copy h1 { max-width: 850px; }
  .hero-perspective svg { min-height: 0; }
  .hero-figure-container { min-height: 520px; }
  .section-heading, .foundation-copy { grid-template-columns: 1fr 1.5fr; }
  .section-heading .eyebrow, .foundation-copy .eyebrow { grid-column: 1 / -1; }
  .architecture-diagram-wrap { padding: 12px; }
  .os-board { padding: 14px; }
  .os-node, .runtime-chip { padding: 12px; }
}
@media (max-width: 1000px) {
  .section-heading, .foundation-copy { grid-template-columns: 1fr; }
  .campaign-step-list { grid-template-columns: 1fr 1fr; }
  .campaign-step-list li:last-child { grid-column: 1 / -1; }
  .architecture-diagram-wrap { padding: 0; }
  .os-board { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: none; min-height: 0; gap: 24px; padding: 24px; overflow: visible; }
  .circuit-wire, .semantic-drop, .execution-bus, .durable-bus, .mobile-circuit, .core-chip::before, .os-board::before { display: none; }
  .os-board > .os-node, .os-board > .runtime-chip, .ontology-plane { position: relative; top: auto; bottom: auto; left: auto; right: auto; width: auto; grid-column: auto; grid-row: auto; align-self: stretch; justify-self: stretch; }
  .ontology-plane { grid-column: 1 / -1; grid-row: 2; }
  .core-chip { grid-column: 1 / -1 !important; }
  .os-legend { display: flex; grid-column: 1 / -1; grid-row: auto; flex-wrap: wrap; }
  .architecture-explanation { gap: 24px; }
}
@media (max-width: 760px) {
  .masthead { grid-template-columns: 1fr auto; gap: 18px; padding: 18px 20px; }
  .wordmark img { width: 200px; }
  .launch-navigation { grid-column: 1 / -1; grid-row: 2; gap: 26px; font-size: 15px; }
  .launch-contact { grid-column: 2; grid-row: 1; padding: 8px 12px; }
  .section-heading { display: block; }
  .section-heading h2 { margin-bottom: 26px; }
  .campaign-workflow, .architecture-section, .durable-section, .foundation-section { padding: 64px 20px; }
  .campaign-hero-copy { padding: 48px 20px; }
  .campaign-hero-copy h1 { font-size: 48px; }
  .hero-figure-container { min-height: 0; }
  .hero-perspective { display: none; }
  .campaign-mobile-record { display: block; padding: 40px 20px; }
  .campaign-inputs, .campaign-events { display: grid; gap: 12px; }
  .campaign-inputs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .campaign-events { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .campaign-inputs span, .campaign-events span { padding: 12px; border: 1px solid var(--ink); text-align: center; font-size: 16px; }
  .campaign-mobile-record > p { margin: 24px 0; padding: 16px; border-block: 1px solid var(--signal); color: var(--signal); text-align: center; font-size: 16px; }
  .campaign-mobile-record > small { display: block; margin-top: 24px; text-align: center; font-size: 15px; color: var(--slate); }
  .sequence-perspective { display: none; }
  .campaign-step-list, .durable-grid { grid-template-columns: 1fr; }
  .campaign-step-list li { min-height: 0; }
  .campaign-step-list h3 { margin-top: 28px; }
  .os-map figcaption { font-size: 14px; }
  .os-board { gap: 16px; padding: 16px; }
  .os-node, .runtime-chip { padding: 12px; }
  .os-node strong, .runtime-chip strong { font-size: 17px; }
  .ontology-plane { padding: 12px; }
  .ontology-plane > header strong { font-size: 24px; }
  .ontology-runtime { grid-template-columns: 1fr; }
  .ontology-runtime article { min-height: 0; padding: 16px; }
  .semantic-bus { grid-template-columns: repeat(3, 1fr); }
  .semantic-bus span:last-child { grid-column: auto; }
  .architecture-explanation { grid-template-columns: 1fr; }
  .durable-grid article { min-height: 0; }
  .durable-grid h3 { margin-top: 40px; }
  .foundation-copy { display: block; }
  .foundation-copy h2 { margin-bottom: 26px; }
  .closing { grid-template-columns: 1fr; gap: 36px; padding: 64px 20px; }
  .closing > a { justify-self: start; min-width: 0; width: 100%; }
  .launch-footer { flex-direction: column; padding: 28px 20px; gap: 12px; }
}
@media (max-width: 380px) { .wordmark img { width: 176px; } .campaign-hero-copy h1 { font-size: 42px; } .os-board { grid-template-columns: 1fr; } .ontology-plane { grid-row: auto; grid-column: 1; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }