@font-face {
  font-family: "Michroma";
  src: url("/systems/assets/fonts/michroma-regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Manrope";
  src: url("/systems/assets/fonts/manrope-regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Manrope";
  src: url("/systems/assets/fonts/manrope-medium.ttf") format("truetype");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Manrope";
  src: url("/systems/assets/fonts/manrope-semibold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Manrope";
  src: url("/systems/assets/fonts/manrope-bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  --bone: #f0f1ef;
  --bone-deep: #d9dcda;
  --paper: #fbfbfa;
  --graphite: #121717;
  --black: #090d0d;
  --ink: #0c1010;
  --steel: #687170;
  --accent: #98a3a1;
  --light-steel: #bac2c0;
  --line: rgba(18, 23, 23, .18);
  --line-light: rgba(251, 251, 250, .18);
  --header: 92px;
  --pad: clamp(1.25rem, 5vw, 5.75rem);
  --section-y: clamp(5.75rem, 8vw, 8.25rem);
  --max: 1600px;
  --sans: "Manrope", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --brand: "Michroma", "Eurostile", "Arial Black", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: var(--header); }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bone);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { color: inherit; font: inherit; }
button, summary { cursor: pointer; }
::selection { color: var(--paper); background: #596260; }
:focus-visible { outline: 2px solid var(--light-steel); outline-offset: 4px; }

.skip-link {
  position: fixed;
  z-index: 1000;
  top: .75rem;
  left: .75rem;
  transform: translateY(-160%);
  padding: .8rem 1rem;
  color: var(--paper);
  background: var(--black);
}
.skip-link:focus { transform: none; }

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header);
  display: grid;
  grid-template-columns: minmax(390px, 1fr) auto minmax(230px, 1fr);
  align-items: center;
  gap: 2.5rem;
  padding: 0 var(--pad);
  border-bottom: 1px solid rgba(255, 255, 255, .15);
  color: var(--paper);
  background: rgba(9, 13, 13, .94);
  backdrop-filter: blur(16px);
  transition: height .25s ease, background .25s ease;
}
.site-header.is-scrolled { height: 76px; background: rgba(9, 13, 13, .985); }
.header-brand {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 1.15rem;
}
.identity {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  width: clamp(190px, 14.5vw, 218px);
  line-height: 0;
}
.identity img { width: 100%; height: auto; }
.header-division {
  max-width: 92px;
  padding-left: 1.15rem;
  border-left: 1px solid rgba(251, 251, 250, .22);
  color: rgba(251, 251, 250, .68);
  font-size: .55rem;
  font-weight: 700;
  letter-spacing: .13em;
  line-height: 1.45;
  text-transform: uppercase;
}
.desktop-nav { display: flex; align-items: center; gap: clamp(.85rem, 1.5vw, 1.5rem); }
.desktop-nav a,
.header-cta,
.mobile-nav a {
  font-size: .65rem;
  font-weight: 650;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.desktop-nav a { color: rgba(251, 251, 250, .6); transition: color .2s ease; }
.desktop-nav a { white-space: nowrap; }
.desktop-nav a:hover { color: var(--paper); }
.desktop-nav .parent-nav-link { padding-right: 1.5rem; border-right: 1px solid var(--line-light); color: rgba(251, 251, 250, .82); }
.mobile-nav .parent-nav-link { color: var(--light-steel); }
.header-cta {
  justify-self: end;
  padding-bottom: .4rem;
  border-bottom: 1px solid rgba(251, 251, 250, .7);
}
.header-cta:hover { border-color: var(--paper); }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(251, 251, 250, .25);
  background: transparent;
  place-content: center;
  gap: 6px;
}
.menu-toggle span { width: 18px; height: 1px; background: var(--paper); transition: transform .2s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-nav {
  position: fixed;
  z-index: 90;
  inset: var(--header) 0 auto;
  display: none;
  padding: 1rem var(--pad) 2rem;
  border-bottom: 1px solid var(--line-light);
  color: var(--paper);
  background: var(--black);
}
.mobile-nav a { padding: 1.1rem 0; border-bottom: 1px solid var(--line-light); }
.mobile-nav.is-open { display: grid; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
h1 {
  margin-bottom: 1.8rem;
  font-family: var(--brand);
  font-size: clamp(3.15rem, 4.45vw, 5.1rem);
  font-weight: 400;
  line-height: 1.16;
  letter-spacing: .055em;
}
h2 {
  margin-bottom: 2rem;
  font-size: clamp(3.25rem, 5.85vw, 6.6rem);
  font-weight: 600;
  line-height: .97;
  letter-spacing: -.048em;
}
h3 { font-weight: 600; letter-spacing: -.03em; }
.lead {
  font-size: clamp(1.45rem, 2.2vw, 2.35rem);
  font-weight: 430;
  line-height: 1.24;
  letter-spacing: -.035em;
}
.section { padding: var(--section-y) var(--pad); }
.section-dark { color: var(--paper); background: var(--graphite); }
.section-label {
  margin-bottom: 1.8rem;
  color: var(--steel);
  font-size: .62rem;
  font-weight: 750;
  letter-spacing: .28em;
  text-transform: uppercase;
}
.section-dark .section-label { color: rgba(251, 251, 250, .47); }
.problem,
.model-heading,
.model-track,
.model-gallery,
.method-principle,
.stage-layout,
.personnel-analysis,
.mvmc-compact-heading,
.scope-split,
.mvmc-heading,
.chain-panel,
.economic-doctrine,
.build-layout,
.system-examples,
.train-layout,
.transfer-map,
.production-layout,
.launch-path,
.scale-heading,
.scale-path,
.scale-note,
.boundary-heading,
.boundary-table,
.boundary-close,
.impact-grid,
.judgment-panel,
.capability-spec,
.credibility,
.fit-heading,
.fit-signals,
.contact,
.site-footer > * { max-width: var(--max); }

.hero {
  min-height: 860px;
  display: grid;
  grid-template-columns: minmax(500px, .91fr) minmax(0, 1.09fr);
  padding-top: var(--header);
  color: var(--paper);
  background: var(--black);
}
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3.75rem, 6vw, 6.5rem) clamp(2.25rem, 5vw, 6rem) clamp(3.75rem, 5vw, 5.5rem) var(--pad);
  background:
    linear-gradient(rgba(255,255,255,.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.032) 1px, transparent 1px),
    var(--black);
  background-size: 68px 68px;
}
.division-label {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin: 0 0 clamp(2.75rem, 5vh, 4.5rem);
  color: rgba(251, 251, 250, .55);
  font-size: .64rem;
  font-weight: 750;
  letter-spacing: .21em;
  text-transform: uppercase;
}
.division-label span {
  padding-left: .8rem;
  border-left: 1px solid var(--line-light);
  color: rgba(251, 251, 250, .85);
  font-weight: 550;
}
.hero h1 span { display: block; white-space: nowrap; }
.hero-intro {
  max-width: 650px;
  margin-bottom: .8rem;
  color: rgba(251, 251, 250, .85);
  font-size: clamp(1.08rem, 1.35vw, 1.35rem);
  line-height: 1.55;
}
.hero-subline {
  max-width: 620px;
  margin-bottom: 2.4rem;
  color: rgba(251, 251, 250, .48);
  font-size: .86rem;
  line-height: 1.6;
}
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 2rem; }
.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.45rem;
  border: 1px solid var(--paper);
  color: var(--ink);
  background: var(--paper);
  font-size: .66rem;
  font-weight: 750;
  letter-spacing: .11em;
  text-transform: uppercase;
  transition: color .2s ease, background .2s ease;
}
.button:hover { color: var(--paper); background: transparent; }
.text-link {
  padding-bottom: .4rem;
  border-bottom: 1px solid rgba(251, 251, 250, .38);
  font-size: .68rem;
  font-weight: 650;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.text-link:hover { border-color: var(--paper); }
.hero-stages {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem .72rem;
  margin: 2.25rem 0 0;
  color: rgba(251, 251, 250, .6);
  font-size: .6rem;
  font-style: normal;
  font-weight: 750;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.hero-stages i { color: rgba(251, 251, 250, .22); font-style: normal; }
.hero-image { position: relative; min-height: 768px; margin: 0; overflow: hidden; background: var(--black); }
.hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9,13,13,.38), transparent 35%), linear-gradient(0deg, rgba(9,13,13,.46), transparent 42%);
}
.hero-image img {
  width: 100%;
  height: 100%;
  min-height: 768px;
  object-fit: cover;
  object-position: 50% center;
  filter: grayscale(.62) saturate(.5) brightness(.68) contrast(1.1);
}

.problem {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, .62fr);
  gap: 5rem 10vw;
  align-items: end;
  margin-inline: auto;
  background: var(--paper);
}
.problem h2 { margin-bottom: 0; }
.problem-copy { max-width: 620px; }
.problem-summary { margin-bottom: 0; color: rgba(18, 23, 23, .72); font-size: 1rem; line-height: 1.72; }
.problem-copy > p:not(.lead) { color: rgba(18, 23, 23, .64); font-size: .92rem; line-height: 1.7; }
.gap-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}
.gap-list li {
  padding: .9rem .75rem .9rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--steel);
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.problem-copy .resolution { margin: 2.35rem 0 0; padding-top: 1.4rem; border-top: 1px solid var(--line); color: var(--ink); }
.resolution strong { font-weight: 650; }
.problem-signals { grid-template-columns: 1fr 1fr; }

.solution { background: var(--paper); }
.solution .define-photo,
.solution .define-photo img { min-height: 650px; }
.solution-copy h2 { font-size: clamp(3.15rem, 4.85vw, 5.35rem); }
.solution-copy .lead { margin-bottom: 2.25rem; }
.solution-decisions > div { min-height: 126px; }
.stage-note strong { color: var(--ink); }
.personnel-analysis {
  display: grid;
  grid-template-columns: minmax(280px, .58fr) minmax(0, 1.42fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: start;
  margin: clamp(4rem, 6vw, 6rem) auto 0;
  padding-top: clamp(2.5rem, 4vw, 4rem);
  border-top: 1px solid var(--line);
}
.personnel-intro h3 { max-width: 520px; margin: 0 0 1.4rem; font-size: clamp(2rem, 3.3vw, 3.6rem); font-weight: 500; line-height: 1.04; text-transform: uppercase; }
.personnel-intro > p:last-child { max-width: 540px; margin: 0; color: var(--steel); font-size: .84rem; line-height: 1.72; }
.personnel-comparison { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.personnel-comparison article { min-width: 0; padding: clamp(1.6rem, 3vw, 2.75rem); background: var(--paper); }
.personnel-comparison article + article { border-left: 1px solid var(--line); }
.personnel-comparison article:first-child { color: var(--paper); background: var(--graphite); }
.personnel-comparison span { display: block; margin-bottom: 2.5rem; color: var(--steel); font-size: .57rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.personnel-comparison article:first-child span { color: var(--light-steel); }
.personnel-comparison strong { display: block; min-height: 3.2rem; margin-bottom: 1.4rem; font-family: var(--brand); font-size: .74rem; font-weight: 400; letter-spacing: .035em; line-height: 1.55; text-transform: uppercase; }
.personnel-comparison ul { margin: 0; padding: 0; list-style: none; }
.personnel-comparison li { padding: .8rem 0; border-top: 1px solid var(--line); color: var(--steel); font-size: .75rem; line-height: 1.58; }
.personnel-comparison article:first-child li { border-color: var(--line-light); color: rgba(251, 251, 250, .66); }

.mvmc-compact { background: var(--paper); }
.mvmc-compact-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .55fr);
  gap: 2rem 9vw;
  align-items: end;
  margin-inline: auto;
}
.mvmc-compact-heading .section-label,
.mvmc-compact-heading h2 { grid-column: 1; }
.mvmc-compact-heading h2 { max-width: 980px; margin-bottom: 0; }
.mvmc-compact-heading > p:last-child { grid-column: 2; grid-row: 1 / span 2; margin: 0 0 .5rem; color: var(--steel); font-size: .88rem; line-height: 1.72; }
.scope-split { display: grid; grid-template-columns: 1fr 1fr; margin: clamp(3.5rem, 5vw, 5rem) auto 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.scope-split > div { padding: 1.8rem 3rem 2rem 0; }
.scope-split > div + div { padding-left: 3rem; border-left: 1px solid var(--line); }
.scope-split span { display: block; margin-bottom: 1.4rem; color: var(--steel); font-size: .6rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.scope-split ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 1.5rem; margin: 0; padding: 0; list-style: none; }
.scope-split li { padding: .72rem 0; border-top: 1px solid rgba(18, 23, 23, .11); font-size: .8rem; }

.operating-model { background: var(--black); }
.model-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(300px, .48fr);
  gap: 3rem 9vw;
  align-items: end;
  margin-inline: auto;
}
.model-heading .section-label,
.model-heading h2 { grid-column: 1; }
.model-heading h2 { max-width: 1020px; margin-bottom: 0; }
.model-heading #model-title { font-size: clamp(2.85rem, 4.35vw, 5rem); line-height: 1.02; }
.model-heading > p:last-child { grid-column: 2; grid-row: 1 / span 2; margin: 0 0 .5rem; color: rgba(251, 251, 250, .54); line-height: 1.7; }
.model-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  list-style: none;
}
.model-track li {
  position: relative;
  min-height: 370px;
  display: flex;
  flex-direction: column;
  padding: 1.65rem clamp(1.2rem, 2vw, 2.1rem) 1.8rem;
  border-right: 1px solid var(--line-light);
  background: rgba(255,255,255,.012);
  transition: background .25s ease;
}
.model-track li:last-child { border-right: 0; }
.model-track li:hover { background: rgba(255,255,255,.045); }
.stage-number { color: rgba(251, 251, 250, .35); font-family: var(--brand); font-size: .62rem; letter-spacing: .08em; }
.model-track h3 {
  margin: 3.4rem 0 2rem;
  font-family: var(--brand);
  font-size: clamp(1.15rem, 1.45vw, 1.55rem);
  font-weight: 400;
  letter-spacing: .035em;
  text-transform: uppercase;
}
.model-track p { max-width: 230px; color: rgba(251, 251, 250, .52); font-size: .79rem; line-height: 1.68; }
.model-track dl { margin: auto 0 0; padding-top: 1.3rem; border-top: 1px solid var(--line-light); }
.model-track dt { margin-bottom: .5rem; color: var(--light-steel); font-size: .56rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.model-track dd { margin: 0; color: rgba(251, 251, 250, .78); font-size: .72rem; line-height: 1.5; }
.concise-model { margin-top: clamp(3.25rem, 5vw, 5rem); }
.concise-model li { min-height: 285px; }
.concise-model h3 { margin: 3rem 0 1.5rem; }
.concise-model p { margin-bottom: 0; color: rgba(251, 251, 250, .64); font-size: .82rem; }

.model-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  margin: clamp(3.25rem, 5vw, 5rem) auto 0;
  background: var(--line-light);
  border: 1px solid var(--line-light);
}
.model-gallery figure { position: relative; min-width: 0; min-height: 390px; margin: 0; overflow: hidden; background: var(--graphite); }
.model-gallery img { width: 100%; height: 390px; object-fit: cover; filter: grayscale(.78) saturate(.38) brightness(.66) contrast(1.12); transition: transform .55s cubic-bezier(.22,.61,.36,1), filter .35s ease; }
.model-gallery figure:nth-child(1) img { object-position: 56% center; }
.model-gallery figure:nth-child(2) img { object-position: 49% center; }
.model-gallery figure:nth-child(3) img { object-position: 50% center; }
.model-gallery figure:hover img { transform: scale(1.018); filter: grayscale(.58) saturate(.46) brightness(.72) contrast(1.09); }
.model-gallery figcaption {
  position: absolute;
  inset: auto 0 0;
  min-height: 74px;
  padding: 1.1rem 1.25rem;
  color: rgba(251, 251, 250, .62);
  background: rgba(9, 13, 13, .92);
  font-size: .66rem;
  line-height: 1.55;
}
.model-gallery figcaption span { display: block; margin-bottom: .4rem; color: var(--light-steel); font-size: .54rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.method-principle { margin: 2.5rem auto 0; color: rgba(251, 251, 250, .52); font-size: clamp(1.35rem, 2.2vw, 2.25rem); letter-spacing: -.03em; }
.method-principle strong { color: var(--paper); font-weight: 600; }

.define { background: var(--paper); }
.stage-layout,
.build-layout,
.train-layout,
.production-layout {
  display: grid;
  align-items: center;
  gap: clamp(4rem, 8vw, 8rem);
  margin-inline: auto;
}
.stage-layout { grid-template-columns: minmax(0, 1.1fr) minmax(390px, .72fr); }
.capability-photo { position: relative; margin: 0; overflow: hidden; background: var(--graphite); }
.capability-photo img { width: 100%; height: 100%; object-fit: cover; }
.capability-photo figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 1rem 1.2rem;
  color: rgba(251, 251, 250, .62);
  background: rgba(9, 13, 13, .9);
  font-size: .57rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.define-photo { min-height: 720px; }
.define-photo img { min-height: 720px; object-position: 48% center; filter: grayscale(.82) saturate(.35) contrast(1.07) brightness(.86); }
.stage-copy { max-width: 650px; }
.stage-copy h2 { font-size: clamp(3.5rem, 5.35vw, 5.9rem); }
.stage-copy .lead { margin-bottom: 3rem; }
.definition-factors { display: grid; grid-template-columns: 1fr 1fr; margin: 0; border-top: 1px solid var(--line); }
.definition-factors > div { min-height: 148px; padding: 1.35rem 1.2rem 1.5rem 0; border-bottom: 1px solid var(--line); }
.definition-factors > div:nth-child(even) { padding-left: 1.2rem; border-left: 1px solid var(--line); }
.definition-factors dt,
.build-components dt { margin-bottom: .6rem; font-size: .65rem; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.definition-factors dd,
.build-components dd { margin: 0; color: var(--steel); font-size: .79rem; line-height: 1.58; }
.stage-note {
  margin: 2rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--steel);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1.6;
}

.mvmc { overflow-x: hidden; background: var(--graphite); }
.mvmc-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, .55fr);
  gap: .8rem 9vw;
  margin-inline: auto;
}
.mvmc-heading .section-label { grid-column: 1; }
.mvmc-heading h2 { grid-column: 1; grid-row: 2 / span 2; max-width: 1060px; margin-bottom: 0; }
.mvmc-heading .lead { grid-column: 2; grid-row: 2; margin-bottom: .8rem; color: var(--paper); }
.mvmc-heading > p:last-child { grid-column: 2; grid-row: 3; margin: 0; color: rgba(251, 251, 250, .54); font-size: .9rem; line-height: 1.72; }
.chain-panel {
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  border: 1px solid var(--line-light);
  background: rgba(0,0,0,.13);
}
.chain-meta { display: flex; justify-content: space-between; gap: 2rem; padding: 1.2rem 1.4rem; border-bottom: 1px solid var(--line-light); }
.chain-meta span { color: rgba(251, 251, 250, .42); font-size: .57rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.chain-meta strong { color: rgba(251, 251, 250, .78); font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; }
.process-chain { display: grid; grid-template-columns: repeat(7, 1fr); margin: 0; padding: 0; list-style: none; }
.process-chain li {
  position: relative;
  min-height: 158px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.4rem;
  border-right: 1px solid var(--line-light);
}
.process-chain li:last-child { border-right: 0; }
.process-chain li[data-state="in"] { background: rgba(186, 194, 192, .105); }
.process-chain li[data-state="out"] { color: rgba(251, 251, 250, .45); }
.process-chain li:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -.55rem;
  width: 1.1rem;
  color: rgba(251, 251, 250, .35);
  background: var(--graphite);
  font-size: .72rem;
  text-align: center;
  transform: translateY(-50%);
}
.process-chain span { font-family: var(--brand); font-size: clamp(.64rem, .85vw, .82rem); letter-spacing: .035em; line-height: 1.45; text-transform: uppercase; }
.process-chain small { color: var(--light-steel); font-size: .52rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.process-chain li[data-state="out"] small { color: rgba(251, 251, 250, .28); }
.chain-caption { margin: 0; padding: 1.2rem 1.4rem; border-top: 1px solid var(--line-light); color: rgba(251, 251, 250, .52); font-size: .77rem; line-height: 1.6; }
.economic-doctrine {
  display: grid;
  grid-template-columns: minmax(330px, .7fr) minmax(0, 1.3fr);
  gap: 3rem 8vw;
  align-items: end;
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  padding: 2.4rem 0;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}
.economic-doctrine .section-label { margin-bottom: 1.2rem; }
.economic-doctrine h3 { margin: 0; font-size: clamp(1.75rem, 3vw, 3rem); font-weight: 500; line-height: 1.08; letter-spacing: -.035em; text-transform: uppercase; }
.economic-doctrine > p { max-width: 820px; margin: 0; color: rgba(251, 251, 250, .58); font-size: .92rem; line-height: 1.75; }

.build { background: var(--bone-deep); }
.build-layout { grid-template-columns: minmax(400px, .76fr) minmax(0, 1.24fr); }
.build-copy { max-width: 650px; }
.build-copy h2 { font-size: clamp(3.4rem, 5.35vw, 5.9rem); }
.build-copy .lead { margin-bottom: 3rem; }
.build-components { margin: 0; border-top: 1px solid var(--line); }
.build-components > div { display: grid; grid-template-columns: 120px 1fr; gap: 1.35rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.build-photo { min-height: 760px; }
.build-photo img { min-height: 760px; object-position: 56% center; filter: saturate(.48) contrast(1.04) brightness(.92); }
.capability-example .build-photo,
.capability-example .build-photo img { min-height: 620px; height: 620px; }
.capability-spec { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.capability-spec li { min-height: 66px; display: flex; align-items: center; padding: .8rem .8rem .8rem 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--steel); font-size: .62rem; font-weight: 700; letter-spacing: .08em; line-height: 1.4; text-transform: uppercase; }
.capability-spec li:nth-child(3n+2),
.capability-spec li:nth-child(3n+3) { padding-left: .8rem; }
.capability-spec li:nth-child(3n) { border-right: 0; }
.system-examples {
  display: grid;
  grid-template-columns: minmax(210px, .7fr) repeat(3, minmax(0, 1fr));
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.examples-heading { padding: 1.5rem 2.2rem 1.5rem 0; }
.examples-heading .section-label { margin-bottom: 1.1rem; }
.examples-heading > p:last-child { margin: 0; color: var(--steel); font-size: .75rem; line-height: 1.55; }
.system-examples details { min-width: 0; padding: 0 1.5rem; border-left: 1px solid var(--line); }
.system-examples summary {
  position: relative;
  min-height: 170px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.55rem 2.2rem 1.55rem 0;
  list-style: none;
}
.system-examples summary::-webkit-details-marker,
.scope-disclosure summary::-webkit-details-marker { display: none; }
.system-examples summary::after,
.scope-disclosure summary::after {
  content: "+";
  position: absolute;
  top: 1.4rem;
  right: 0;
  color: var(--steel);
  font-size: 1.05rem;
  font-weight: 400;
}
.system-examples details[open] summary::after,
.scope-disclosure[open] summary::after { content: "−"; }
.system-examples summary span { max-width: 210px; font-family: var(--brand); font-size: .74rem; letter-spacing: .035em; line-height: 1.55; text-transform: uppercase; }
.system-examples summary small { color: var(--steel); font-size: .57rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.system-examples details > p { margin: -1rem 0 1.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line); color: var(--steel); font-size: .74rem; line-height: 1.65; }

.train { background: var(--black); }
.train-layout { grid-template-columns: minmax(0, 1.06fr) minmax(400px, .74fr); }
.train-photo { min-height: 740px; }
.train-photo img { min-height: 740px; object-position: 48% center; filter: grayscale(.72) saturate(.35) brightness(.7) contrast(1.1); }
.train-copy { max-width: 670px; }
.train-copy h2 { font-size: clamp(3rem, 4.8vw, 5.3rem); }
.train-copy .lead { color: var(--paper); }
.train-copy > p:not(.section-label):not(.lead):not(.plain-warning) { color: rgba(251, 251, 250, .55); font-size: .9rem; line-height: 1.75; }
.train-copy .operator-note { margin: 2rem 0 1.1rem; padding-top: 1.25rem; border-top: 1px solid var(--line-light); color: var(--light-steel); font-weight: 600; }
.train .train-photo,
.train .train-photo img { min-height: 580px; height: 580px; }
.plain-warning { margin: 2.1rem 0 0; padding-top: 1.3rem; border-top: 1px solid var(--line-light); color: var(--light-steel); font-size: .78rem; font-weight: 600; line-height: 1.65; }
.scope-disclosure { margin-top: 2.2rem; border-top: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.scope-disclosure summary { position: relative; padding: 1.4rem 2.2rem 1.4rem 0; color: rgba(251,251,250,.75); font-size: .63rem; font-weight: 750; letter-spacing: .11em; list-style: none; text-transform: uppercase; }
.scope-disclosure summary::after { top: 1.1rem; color: var(--light-steel); }
.scope-disclosure ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.5rem; margin: 0 0 1.4rem; padding: 0; list-style: none; }
.scope-disclosure li { padding: .75rem 0; border-top: 1px solid var(--line-light); color: rgba(251, 251, 250, .48); font-size: .72rem; line-height: 1.5; }
.transfer-map {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: stretch;
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}
.transfer-map > div { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; align-items: center; min-height: 150px; }
.transfer-map > div > span { grid-column: 1 / -1; align-self: end; color: var(--light-steel); font-size: .57rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.transfer-map strong { align-self: start; color: rgba(251, 251, 250, .7); font-size: .65rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.transfer-map > i { align-self: center; color: rgba(251, 251, 250, .3); font-style: normal; }

.production { background: var(--paper); }
.production-layout { grid-template-columns: minmax(400px, .78fr) minmax(0, 1.22fr); }
.production-copy { max-width: 690px; }
.production-copy h2 { font-size: clamp(3rem, 4.9vw, 5.45rem); }
.production-copy > p:not(.section-label):not(.lead):not(.outcome-wordmark) { color: var(--steel); font-size: .9rem; line-height: 1.75; }
.outcome-wordmark { margin: 3.2rem 0 0; padding-top: 1.5rem; border-top: 1px solid var(--line); font-family: var(--brand); font-size: clamp(1.2rem, 2vw, 2rem); letter-spacing: .035em; line-height: 1.45; text-transform: uppercase; }
.production-photo { min-height: 690px; }
.production-photo img { min-height: 690px; object-position: 50% 42%; filter: grayscale(.82) saturate(.35) brightness(.78) contrast(1.1); }
.production .production-photo,
.production .production-photo img { min-height: 560px; height: 560px; }
.launch-path {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}
.launch-path li {
  position: relative;
  min-height: 112px;
  display: flex;
  align-items: center;
  padding: 1.3rem 2rem;
  border-right: 1px solid var(--line);
  font-family: var(--brand);
  font-size: clamp(.61rem, .78vw, .75rem);
  letter-spacing: .035em;
  line-height: 1.45;
  text-transform: uppercase;
}
.launch-path li:last-child { border-right: 0; }
.launch-path li:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -.55rem;
  width: 1.1rem;
  color: var(--steel);
  background: var(--paper);
  font-family: var(--sans);
  font-size: .72rem;
  text-align: center;
  transform: translateY(-50%);
}

.scale { background: var(--graphite); }
.scale-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .5fr);
  gap: 3rem 9vw;
  align-items: end;
  margin-inline: auto;
}
.scale-heading .section-label,
.scale-heading h2 { grid-column: 1; }
.scale-heading h2 { margin-bottom: 0; }
.scale-heading > p:last-child { grid-column: 2; grid-row: 1 / span 2; margin: 0 0 .5rem; color: rgba(251, 251, 250, .55); line-height: 1.72; }
.scale-path {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin: clamp(4.5rem, 7vw, 7rem) auto 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  list-style: none;
}
.scale-path li {
  min-height: 185px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.45rem;
  border-right: 1px solid var(--line-light);
  color: rgba(251, 251, 250, .72);
  font-family: var(--brand);
  font-size: clamp(.6rem, .75vw, .73rem);
  letter-spacing: .035em;
  line-height: 1.5;
  text-transform: uppercase;
}
.scale-path li:last-child { border-right: 0; }
.scale-path span { color: rgba(251, 251, 250, .3); font-size: .55rem; }
.scale-note { margin: 2rem auto 0; color: rgba(251, 251, 250, .42); font-size: .72rem; line-height: 1.6; }

.value,
.boundary { background: var(--paper); }
.boundary-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(300px, .52fr);
  gap: 2rem 9vw;
  align-items: end;
  margin-inline: auto;
}
.boundary-heading .section-label,
.boundary-heading h2 { grid-column: 1; }
.boundary-heading h2 { margin-bottom: 0; }
.boundary-heading > p:last-child { grid-column: 2; grid-row: 1 / span 2; margin: 0 0 .6rem; color: var(--steel); line-height: 1.7; }
.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: clamp(4rem, 6vw, 6rem) auto 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}
.impact-grid li { min-height: 220px; padding: 1.5rem clamp(1.2rem, 2.2vw, 2.2rem); border-right: 1px solid var(--line); }
.impact-grid li:first-child { padding-left: 0; }
.impact-grid li:last-child { padding-right: 0; border-right: 0; }
.impact-grid span { display: block; margin-bottom: 3rem; color: var(--steel); font-family: var(--brand); font-size: .56rem; }
.impact-grid strong { display: block; margin-bottom: .8rem; font-family: var(--brand); font-size: clamp(.82rem, 1.1vw, 1.05rem); font-weight: 400; letter-spacing: .03em; line-height: 1.45; text-transform: uppercase; }
.impact-grid p { margin: 0; color: var(--steel); font-size: .75rem; line-height: 1.65; }
.judgment-panel {
  display: grid;
  grid-template-columns: minmax(300px, .6fr) minmax(0, 1.4fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  margin: clamp(4rem, 6vw, 6rem) auto 0;
  padding: clamp(2.25rem, 4vw, 4.25rem);
  color: var(--paper);
  background: var(--graphite);
}
.judgment-statement h3 { max-width: 540px; margin: 0 0 1.5rem; font-size: clamp(2rem, 3.3vw, 3.75rem); font-weight: 500; line-height: 1.02; text-transform: uppercase; }
.judgment-statement > p:last-child { max-width: 500px; margin: 0; color: rgba(251, 251, 250, .52); font-size: .82rem; line-height: 1.72; }
.compact-boundary { margin: 0; border-color: var(--line-light); }
.compact-boundary > div { padding-top: 1.2rem; padding-bottom: 1.2rem; }
.compact-boundary > div + div { border-color: var(--line-light); }
.compact-boundary h3 { color: var(--light-steel); }
.compact-boundary li { border-color: rgba(251, 251, 250, .12); color: rgba(251, 251, 250, .68); }
.boundary-table { display: grid; grid-template-columns: 1fr 1fr; margin: clamp(4.5rem, 7vw, 7rem) auto 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.boundary-table > div { padding: 2.2rem 4rem 2.8rem 0; }
.boundary-table > div + div { padding-left: 4rem; border-left: 1px solid var(--line); }
.boundary-table h3 { margin-bottom: 2.2rem; color: var(--steel); font-size: .68rem; letter-spacing: .11em; text-transform: uppercase; }
.boundary-table ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 2rem; margin: 0; padding: 0; list-style: none; }
.boundary-table li { padding: .75rem 0; border-top: 1px solid rgba(18, 23, 23, .11); font-size: .82rem; }
.boundary-close { margin: 3.3rem auto 0; font-size: clamp(1.5rem, 2.65vw, 2.7rem); letter-spacing: -.035em; }
.boundary-close span { color: var(--steel); }
.judgment-panel .compact-boundary { margin: 0; border-color: var(--line-light); }
.judgment-panel .compact-boundary > div + div { border-color: var(--line-light); }
.judgment-panel .compact-boundary li { border-color: rgba(251, 251, 250, .12); }

.credibility {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(390px, .65fr);
  gap: clamp(4rem, 9vw, 9rem);
  align-items: center;
  margin-inline: auto;
  background: var(--bone-deep);
}
.credibility-images { display: grid; grid-template-columns: 1fr .72fr; align-items: end; gap: 1rem; }
.credibility-images img { width: 100%; height: 560px; object-fit: cover; filter: saturate(.32) contrast(1.06); }
.credibility-images img:first-child { object-position: 50% 38%; }
.credibility-images img:last-child { height: 400px; }
.credibility-copy { max-width: 650px; }
.credibility-copy h2 { font-size: clamp(3.15rem, 5vw, 5.7rem); }
.credibility-copy > p:not(.section-label):not(.lead) { color: rgba(18, 23, 23, .64); font-size: .9rem; line-height: 1.72; }
.credibility-copy blockquote { margin: 2.6rem 0 0; padding: 1.5rem 0 0; border-top: 1px solid var(--line); color: var(--steel); font-size: .78rem; font-style: normal; font-weight: 600; line-height: 1.7; }

.fit { background: var(--bone); }
.fit-heading { margin-inline: auto; }
.fit-heading h2 { max-width: 1180px; }
.fit-signals {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: clamp(4.25rem, 6vw, 6rem) auto 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}
.fit-signals li { min-height: 180px; padding: 1.6rem 2rem 1.6rem 0; border-right: 1px solid var(--line); font-size: clamp(.95rem, 1.25vw, 1.2rem); line-height: 1.55; }
.fit-signals li:not(:first-child) { padding-left: 2rem; }
.fit-signals li:last-child { border-right: 0; }

.contact {
  display: grid;
  grid-template-columns: minmax(360px, .68fr) minmax(520px, 1.02fr);
  gap: clamp(4rem, 9vw, 9rem);
  margin-inline: auto;
  background: var(--graphite);
}
.contact-intro { align-self: start; }
.contact-intro h2 { font-size: clamp(3.1rem, 5.25vw, 5.9rem); }
.contact-intro > p:not(.section-label) { max-width: 590px; color: rgba(251, 251, 250, .56); line-height: 1.72; }
.direct-contact { display: grid; gap: .65rem; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line-light); }
.direct-contact span { color: var(--light-steel); font-size: .57rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.direct-contact a { width: max-content; max-width: 100%; color: rgba(251, 251, 250, .72); font-size: .83rem; overflow-wrap: anywhere; }
.direct-contact a:hover { color: var(--paper); }
.capability-form { padding: clamp(1.75rem, 4vw, 3.5rem); border: 1px solid var(--line-light); background: rgba(251, 251, 250, .025); }
.form-heading { margin-bottom: 2rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line-light); }
.form-heading span { display: block; margin-bottom: .55rem; color: var(--paper); font-family: var(--brand); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.form-heading p { margin: 0; color: rgba(251, 251, 250, .45); font-size: .68rem; line-height: 1.55; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.5rem; }
.capability-form label { display: grid; gap: .65rem; margin-bottom: 1.25rem; color: rgba(251, 251, 250, .64); font-size: .64rem; font-weight: 620; letter-spacing: .05em; }
.capability-form input,
.capability-form textarea {
  width: 100%;
  padding: .85rem 0;
  border: 0;
  border-bottom: 1px solid var(--line-light);
  border-radius: 0;
  outline: 0;
  color: var(--paper);
  background: transparent;
  font-size: .9rem;
  resize: vertical;
}
.capability-form textarea { min-height: 96px; }
.capability-form input:focus,
.capability-form textarea:focus { border-color: var(--light-steel); }
.capability-form .field-error { border-color: #c99e8e; }
.form-footer { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-top: 2rem; padding-top: 1.6rem; border-top: 1px solid var(--line-light); }
.form-message { max-width: 340px; margin: 0; color: rgba(251, 251, 250, .4); font-size: .61rem; line-height: 1.55; }
.form-message.is-success { color: #d7dcdb; }
.contact .button { flex: 0 0 auto; }

.site-footer {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 2rem 4rem;
  padding: 4.25rem var(--pad) 2.5rem;
  color: var(--paper);
  background: #181c1c;
  border-top: 1px solid var(--line-light);
}
.site-footer > * { width: 100%; margin-inline: auto; }
.footer-brand { display: grid; gap: .75rem; width: min(285px, 100%); margin-left: 0; }
.footer-brand img { width: 220px; height: auto; }
.footer-brand span { width: max-content; padding-top: .85rem; border-top: 1px solid var(--line-light); color: var(--light-steel); font-size: .6rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.footer-identity { display: grid; width: max-content; margin-left: 0; }
.footer-identity > span { font-family: var(--brand); font-size: 1.9rem; letter-spacing: .02em; text-transform: uppercase; }
.footer-identity p { margin: .3rem 0 1rem; color: rgba(251, 251, 250, .48); font-size: .58rem; letter-spacing: .13em; text-transform: uppercase; }
.footer-identity strong { padding-top: .95rem; border-top: 1px solid var(--line-light); color: var(--light-steel); font-size: .66rem; letter-spacing: .13em; text-transform: uppercase; }
.footer-contact { display: grid; align-content: start; justify-items: end; gap: .65rem; }
.footer-contact span { color: var(--light-steel); font-size: .57rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.footer-contact a { color: rgba(251, 251, 250, .62); font-size: .74rem; }
.footer-contact a:hover { color: var(--paper); }
.footer-legal { grid-column: 1 / -1; margin: 0; padding-top: 1.2rem; border-top: 1px solid var(--line-light); color: rgba(251, 251, 250, .3); font-size: .54rem; letter-spacing: .04em; }
.footer-legal span { margin-left: 1rem; }

.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .72s ease, transform .72s cubic-bezier(.22,.61,.36,1); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }
.js .model-track [data-reveal]:nth-child(2) { transition-delay: .06s; }
.js .model-track [data-reveal]:nth-child(3) { transition-delay: .12s; }
.js .model-track [data-reveal]:nth-child(4) { transition-delay: .18s; }
.js .model-track [data-reveal]:nth-child(5) { transition-delay: .24s; }

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 1fr auto auto; }
  .desktop-nav { display: none; }
  .menu-toggle { display: grid; }
  .header-cta { margin-right: 1.25rem; }
  .hero { grid-template-columns: 1fr 1fr; }
  .hero-copy { padding-right: 2.75rem; }
  .model-track { overflow-x: auto; grid-template-columns: repeat(5, minmax(220px, 1fr)); scroll-snap-type: x proximity; }
  .model-track li { scroll-snap-align: start; }
  .stage-layout,
  .build-layout,
  .train-layout,
  .production-layout,
  .credibility,
  .contact { gap: 4.5rem; }
  .build-layout { grid-template-columns: minmax(360px, .8fr) minmax(0, 1.2fr); }
  .system-examples { grid-template-columns: repeat(3, 1fr); }
  .examples-heading { grid-column: 1 / -1; padding-right: 0; border-bottom: 1px solid var(--line); }
  .system-examples details:first-of-type { border-left: 0; }
  .scale-path { overflow-x: auto; grid-template-columns: repeat(6, minmax(190px, 1fr)); scroll-snap-type: x proximity; }
  .scale-path li { scroll-snap-align: start; }
}

@media (max-width: 900px) {
  .hero { min-height: auto; grid-template-columns: 1fr; }
  .hero-copy { min-height: 700px; padding-right: var(--pad); }
  .hero-image,
  .hero-image img { min-height: 590px; }
  .problem,
  .model-heading,
  .mvmc-heading,
  .mvmc-compact-heading,
  .economic-doctrine,
  .stage-layout,
  .personnel-analysis,
  .build-layout,
  .train-layout,
  .production-layout,
  .scale-heading,
  .boundary-heading,
  .judgment-panel,
  .credibility,
  .contact { grid-template-columns: 1fr; }
  .problem,
  .model-heading,
  .mvmc-heading,
  .mvmc-compact-heading,
  .economic-doctrine,
  .stage-layout,
  .personnel-analysis,
  .build-layout,
  .train-layout,
  .production-layout,
  .scale-heading,
  .boundary-heading,
  .judgment-panel,
  .credibility,
  .contact { gap: 3.5rem; }
  .problem-copy,
  .stage-copy,
  .build-copy,
  .train-copy,
  .production-copy,
  .credibility-copy { max-width: 740px; }
  .model-heading .section-label,
  .model-heading h2,
  .model-heading > p:last-child,
  .mvmc-heading .section-label,
  .mvmc-heading h2,
  .mvmc-heading .lead,
  .mvmc-heading > p:last-child,
  .scale-heading .section-label,
  .scale-heading h2,
  .scale-heading > p:last-child,
  .boundary-heading .section-label,
  .boundary-heading h2,
  .boundary-heading > p:last-child { grid-column: 1; grid-row: auto; }
  .model-heading > p:last-child,
  .mvmc-heading > p:last-child,
  .scale-heading > p:last-child,
  .boundary-heading > p:last-child { max-width: 650px; }
  .mvmc-compact-heading { grid-template-columns: 1fr; }
  .mvmc-compact-heading .section-label,
  .mvmc-compact-heading h2,
  .mvmc-compact-heading > p:last-child { grid-column: 1; grid-row: auto; }
  .mvmc-compact-heading > p:last-child { max-width: 650px; }
  .scope-split ul { grid-template-columns: 1fr 1fr; }
  .capability-example .build-photo,
  .capability-example .build-photo img { min-height: 540px; height: 540px; }
  .train .train-photo,
  .train .train-photo img { min-height: 560px; height: 560px; }
  .production .production-photo,
  .production .production-photo img { min-height: 520px; height: 520px; }
  .define .stage-copy,
  .train .train-copy { order: -1; }
  .define-photo,
  .define-photo img,
  .build-photo,
  .build-photo img,
  .train-photo,
  .train-photo img,
  .production-photo,
  .production-photo img { min-height: 580px; height: 580px; }
  .process-chain { overflow-x: auto; grid-template-columns: repeat(7, minmax(160px, 1fr)); scroll-snap-type: x proximity; }
  .process-chain li { scroll-snap-align: start; }
  .boundary-table ul { grid-template-columns: 1fr; }
  .impact-grid { grid-template-columns: 1fr 1fr; }
  .impact-grid li:nth-child(2) { border-right: 0; }
  .impact-grid li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .impact-grid li:nth-child(3) { padding-left: 0; }
  .credibility-images { order: 2; }
  .fit-signals { grid-template-columns: 1fr 1fr; }
  .fit-signals li { border-bottom: 1px solid var(--line); }
  .fit-signals li:nth-child(2) { border-right: 0; }
  .fit-signals li:nth-child(3),
  .fit-signals li:nth-child(4) { border-bottom: 0; }
}

@media (max-width: 640px) {
  :root { --header: 76px; --section-y: 4.75rem; }
  .site-header { grid-template-columns: 1fr auto; gap: 1rem; padding-right: 1rem; }
  .header-cta { display: none; }
  .header-brand { gap: .7rem; }
  .identity { width: min(42vw, 160px); }
  .header-division { max-width: 74px; padding-left: .7rem; font-size: .47rem; letter-spacing: .1em; }
  .menu-toggle { width: 42px; height: 42px; }
  .mobile-nav { inset: var(--header) 0 auto; }
  h1 { font-size: clamp(2.5rem, 11.7vw, 3.4rem); line-height: 1.22; letter-spacing: .045em; }
  h2 { font-size: clamp(2.75rem, 12.8vw, 4rem); }
  .lead { font-size: 1.48rem; }
  .hero-copy { min-height: 660px; }
  .division-label { display: grid; gap: .45rem; margin-bottom: 3.5rem; }
  .division-label span { padding: 0; border-left: 0; }
  .hero-intro { font-size: 1rem; }
  .hero-stages { gap: .42rem .58rem; font-size: .54rem; }
  .hero-image,
  .hero-image img { min-height: 450px; }
  .gap-list { grid-template-columns: 1fr 1fr; }
  .model-track { overflow: visible; grid-template-columns: 1fr; }
  .model-track li { min-height: 0; padding: 1.5rem 0 1.7rem; border-right: 0; border-bottom: 1px solid var(--line-light); }
  .model-track li:last-child { border-bottom: 0; }
  .model-track h3 { margin: 1.5rem 0 1rem; }
  .model-track dl { margin-top: 1.5rem; }
  .model-heading #model-title { font-size: clamp(2.15rem, 9.8vw, 3.05rem); overflow-wrap: anywhere; }
  .model-gallery { grid-template-columns: 1fr; }
  .model-gallery figure,
  .model-gallery img { min-height: 340px; height: 340px; }
  .method-principle { line-height: 1.3; }
  .scope-split { grid-template-columns: 1fr; }
  .scope-split > div,
  .scope-split > div + div { padding: 1.5rem 0 1.7rem; border-left: 0; }
  .scope-split > div + div { border-top: 1px solid var(--line); }
  .scope-split ul { grid-template-columns: 1fr 1fr; }
  .capability-spec { grid-template-columns: 1fr 1fr; }
  .capability-spec li,
  .capability-spec li:nth-child(3n+2),
  .capability-spec li:nth-child(3n+3) { min-height: 58px; padding: .75rem .7rem .75rem 0; border-right: 1px solid var(--line); }
  .capability-spec li:nth-child(even) { padding-left: .7rem; border-right: 0; }
  .capability-spec li:last-child { border-right: 1px solid var(--line); }
  .personnel-analysis { padding-top: 2.5rem; }
  .personnel-comparison { grid-template-columns: 1fr; }
  .personnel-comparison article + article { border-top: 1px solid var(--line); border-left: 0; }
  .personnel-comparison strong { min-height: 0; }
  .stage-copy h2,
  .build-copy h2,
  .train-copy h2,
  .production-copy h2,
  .credibility-copy h2,
  .contact-intro h2 { font-size: clamp(2.55rem, 11.7vw, 3.65rem); }
  .mvmc-heading h2,
  .fit-heading h2 { font-size: clamp(2.3rem, 10.4vw, 3.2rem); }
  .definition-factors { grid-template-columns: 1fr; }
  .definition-factors > div,
  .definition-factors > div:nth-child(even) { min-height: 0; padding: 1.2rem 0 1.35rem; border-left: 0; }
  .define-photo,
  .define-photo img,
  .build-photo,
  .build-photo img,
  .train-photo,
  .train-photo img,
  .production-photo,
  .production-photo img { min-height: 420px; height: 420px; }
  .capability-example .build-photo,
  .capability-example .build-photo img,
  .train .train-photo,
  .train .train-photo img,
  .production .production-photo,
  .production .production-photo img { min-height: 420px; height: 420px; }
  .chain-meta { align-items: flex-start; flex-direction: column; gap: .5rem; }
  .process-chain { display: flex; }
  .process-chain li { min-width: 155px; min-height: 145px; }
  .economic-doctrine { padding: 2rem 0; }
  .build-components > div { grid-template-columns: 92px 1fr; gap: 1rem; }
  .system-examples { grid-template-columns: 1fr; }
  .examples-heading { grid-column: 1; }
  .system-examples details,
  .system-examples details:first-of-type { padding: 0; border-top: 1px solid var(--line); border-left: 0; }
  .system-examples summary { min-height: 140px; }
  .scope-disclosure ul { grid-template-columns: 1fr; }
  .transfer-map { grid-template-columns: 1fr; gap: 0; }
  .transfer-map > div { min-height: 140px; }
  .transfer-map > i { padding: .2rem 0; transform: rotate(90deg); }
  .launch-path { grid-template-columns: 1fr; }
  .launch-path li { min-height: 80px; padding: 1.2rem 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .launch-path li:last-child { border-bottom: 0; }
  .launch-path li:not(:last-child)::after { content: "↓"; top: auto; right: auto; bottom: -.68rem; left: 0; transform: none; }
  .scale-path { overflow: visible; grid-template-columns: 1fr; }
  .scale-path li { min-height: 92px; flex-direction: row; align-items: center; justify-content: flex-start; gap: 1.4rem; padding: 1.2rem 0; border-right: 0; border-bottom: 1px solid var(--line-light); }
  .scale-path li:last-child { border-bottom: 0; }
  .boundary-table { grid-template-columns: 1fr; }
  .boundary-table > div,
  .boundary-table > div + div { padding: 2rem 0 2.3rem; border-left: 0; }
  .boundary-table > div + div { border-top: 1px solid var(--line); }
  .boundary-close { line-height: 1.28; }
  .impact-grid { grid-template-columns: 1fr; }
  .impact-grid li,
  .impact-grid li:first-child,
  .impact-grid li:last-child,
  .impact-grid li:nth-child(3) { min-height: 0; padding: 1.35rem 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .impact-grid li:last-child { border-bottom: 0; }
  .impact-grid span { margin-bottom: 1.3rem; }
  .judgment-panel { padding: 2rem 1.25rem; }
  .judgment-panel .compact-boundary > div,
  .judgment-panel .compact-boundary > div + div { padding: 1.8rem 0; }
  .credibility-images { grid-template-columns: 1fr; }
  .credibility-images img { height: 430px; }
  .credibility-images img:last-child { display: none; }
  .fit-signals { grid-template-columns: 1fr; }
  .fit-signals li,
  .fit-signals li:not(:first-child) { min-height: 0; padding: 1.25rem 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .fit-signals li:last-child { border-bottom: 0; }
  .field-grid { grid-template-columns: 1fr; }
  .form-footer { align-items: stretch; flex-direction: column; }
  .form-footer .button { width: 100%; }
  .site-footer { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-contact { justify-items: start; }
  .footer-legal { margin: 0; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
}

/* Keep the imported Systems identity images from inheriting the parent site's full-height image rule. */
.systemsPage .identity img,
.systemsPage .footer-brand img { height: auto; object-fit: contain; }