:root {
  --ink: #101217;
  --navy: #003049;
  --graphite: #2B2D42;
  --frost: #EDF2F4;
  --slate: #8D99AE;
  --slate-text: #555C68;
  --crimson: #C1121F;
  --coral: #F4747C;
  --white: #FFFFFF;
  --muted: rgba(43, 45, 66, .76);
  --line: rgba(43, 45, 66, .23);
  --line-soft: rgba(141, 153, 174, .22);
  --font-display: "Plus Jakarta Sans", "Inter", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 1240px;
  --pad: clamp(1.25rem, 4vw, 3.75rem);
  --section: clamp(5.5rem, 9vw, 8.5rem);
  --ease: cubic-bezier(.2, .75, .2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; }
p { text-wrap: pretty; }
[id] { scroll-margin-top: 76px; }

.shell { width: min(calc(100% - (2 * var(--pad))), var(--max)); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 9999;
  padding: .75rem 1rem;
  background: var(--ink);
  color: var(--frost);
  transform: translateY(-160%);
  transition: transform 160ms var(--ease);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--crimson); outline-offset: 3px; }

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  min-height: 70px;
  padding: 1rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid rgba(43, 45, 66, .09);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(16px);
}
.nav-logo { display: flex; align-items: center; padding: 8px 4px; margin: -8px -4px; }
.nav-logo-img { width: auto; height: 28px; }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  position: relative;
  padding: .7rem 0;
  color: var(--graphite);
  font-size: .82rem;
  font-weight: 500;
}
.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: .42rem;
  left: 0;
  height: 1px;
  background: var(--crimson);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms var(--ease);
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-links .nav-cta {
  margin: 0;
  padding: .48rem 1.2rem;
  background: var(--crimson);
  color: var(--frost);
  font-weight: 600;
}
.nav-links .nav-cta::after { display: none; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 180ms var(--ease), opacity 180ms var(--ease), background-color 180ms var(--ease);
}

.eyebrow,
.section-code,
.micro-label,
.row-index,
.mode-type,
.cell-label {
  font-family: var(--font-display);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .11em;
  line-height: 1.4;
  text-transform: uppercase;
}
.eyebrow,
.section-code,
.row-index,
.mode-type { color: var(--crimson); }

.dossier-hero {
  position: relative;
  min-height: 720px;
  padding-top: 70px;
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
  background: var(--frost);
}
.hero-shell {
  min-height: 650px;
  padding-block: clamp(7rem, 14vw, 11rem) 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.document-code {
  position: absolute;
  top: 112px;
  right: max(1.2rem, calc((100vw - var(--max)) / 2));
  color: var(--slate);
  font-family: var(--font-display);
  font-size: .64rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
.dossier-hero .eyebrow { margin-bottom: 1.3rem; }
.dossier-hero h1 {
  margin-bottom: 2rem;
  font-size: clamp(4.5rem, 12vw, 9.5rem);
  font-weight: 500;
  letter-spacing: -.065em;
  line-height: .82;
}
.hero-lead {
  max-width: 980px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.1vw, 1.65rem);
  line-height: 1.55;
}
.hero-meta {
  margin: clamp(3.5rem, 7vw, 6rem) 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.hero-meta div { padding: 1.1rem 1.4rem 0 0; }
.hero-meta div + div { padding-left: 1.4rem; border-left: 1px solid var(--line); }
.hero-meta dt {
  margin-bottom: .25rem;
  color: var(--graphite);
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero-meta dd { margin: 0; color: var(--slate-text); font-size: .72rem; }

.dossier-section {
  padding-block: var(--section);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.dossier-section.frost { background: var(--frost); }
.section-head {
  display: grid;
  grid-template-columns: minmax(220px, .68fr) minmax(0, 1.32fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}
.section-code { margin-bottom: 1.25rem; }
.section-head h2 {
  margin-bottom: 0;
  font-size: clamp(2.5rem, 5.7vw, 5.25rem);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .98;
}
.section-copy { max-width: 820px; color: var(--muted); font-size: clamp(1rem, 1.35vw, 1.15rem); }
.section-copy p { margin-bottom: 1.35rem; }
.section-copy p:last-child { margin-bottom: 0; }

.comparison {
  margin-top: clamp(4rem, 8vw, 6.5rem);
  border-top: 1px solid var(--ink);
}
.comparison-head,
.comparison-row {
  display: grid;
  grid-template-columns: 120px minmax(190px, .7fr) minmax(220px, .9fr) minmax(250px, 1.15fr);
  gap: 2rem;
}
.comparison-head {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--slate-text);
}
.comparison-head span:first-child { grid-column: 2; }
.comparison-row { padding: 2rem 0; border-bottom: 1px solid var(--line); }
.comparison-row h3 { margin: 0; font-size: 1.15rem; line-height: 1.35; }
.comparison-row p { margin: 0; color: var(--muted); font-size: .92rem; }
.comparison-row .cell-label { display: none; margin-bottom: .45rem; color: var(--slate-text); }

.access-grid {
  margin-top: clamp(4rem, 8vw, 6rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.access-panel { padding: 2.2rem 3rem 2.8rem 0; }
.access-panel + .access-panel { padding-left: 3rem; border-left: 1px solid var(--line); }
.access-panel .mode-type { display: block; margin-bottom: 3rem; }
.access-panel h3 { margin-bottom: 1rem; font-size: clamp(1.45rem, 2.4vw, 2rem); }
.access-panel > p { color: var(--muted); }
.access-meta { margin: 2rem 0 0; border-top: 1px solid var(--line-soft); }
.access-meta div {
  padding: .85rem 0;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 1.2rem;
  border-bottom: 1px solid var(--line-soft);
}
.access-meta dt {
  color: var(--slate-text);
  font-family: var(--font-display);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.access-meta dd { margin: 0; color: var(--graphite); font-size: .84rem; }
.access-action {
  margin-top: 1.7rem;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .8rem;
  font-weight: 600;
}
.access-action span { color: var(--crimson); transition: transform 180ms var(--ease); }
.access-action:hover span { transform: translateX(4px); }
.stage-note {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  display: grid;
  grid-template-columns: minmax(180px, .42fr) minmax(0, 1.58fr);
  gap: clamp(2rem, 7vw, 7rem);
}
.stage-note p { max-width: 780px; margin: 0; color: var(--muted); }

.registry {
  margin-top: clamp(4rem, 8vw, 6.5rem);
  border-top: 1px solid var(--ink);
}
.registry-row {
  display: grid;
  grid-template-columns: 72px minmax(240px, .75fr) minmax(0, 1.25fr);
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}
.registry-row h3 { margin: 0; font-size: clamp(1.1rem, 1.7vw, 1.4rem); line-height: 1.25; }
.registry-row > div > p { max-width: 760px; margin: 0; color: var(--muted); }

.stage-band {
  padding-block: var(--section);
  border-bottom: 1px solid rgba(141, 153, 174, .22);
  background: var(--navy);
  color: var(--frost);
}
.stage-band .section-code { color: var(--coral); }
.stage-band .section-head h2 { color: var(--frost); }
.stage-band .section-copy { color: rgba(237, 242, 244, .76); }
.stage-features {
  margin-top: clamp(4rem, 8vw, 6rem);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(237, 242, 244, .35);
  border-bottom: 1px solid rgba(237, 242, 244, .22);
}
.stage-feature { min-height: 235px; padding: 1.8rem 1.8rem 1.8rem 0; }
.stage-feature + .stage-feature { padding-left: 1.8rem; border-left: 1px solid rgba(237, 242, 244, .22); }
.stage-feature .row-index { display: block; margin-bottom: 3.5rem; color: var(--coral); }
.stage-feature h3 { margin-bottom: .8rem; color: var(--frost); font-size: 1.15rem; }
.stage-feature p { margin: 0; color: rgba(237, 242, 244, .76); }
.configuration-grid {
  margin-top: clamp(4rem, 8vw, 6rem);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.configuration {
  min-height: 330px;
  padding: 2rem 2rem 2.5rem 0;
}
.configuration + .configuration { padding-left: 2rem; border-left: 1px solid var(--line); }
.configuration .row-index { display: block; margin-bottom: 3.5rem; }
.configuration h3 { margin-bottom: .85rem; font-size: 1.2rem; }
.configuration p { margin: 0 0 1.4rem; color: var(--muted); }
.configuration .fit {
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  color: var(--graphite);
  font-size: .82rem;
}
.configuration .fit strong {
  display: block;
  margin-bottom: .35rem;
  color: var(--slate-text);
  font-family: var(--font-display);
  font-size: .64rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.output-matrix {
  margin-top: clamp(4rem, 8vw, 6rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.output-card { min-height: 245px; padding: 2rem 3rem 2.5rem 0; border-bottom: 1px solid var(--line); }
.output-card:nth-child(even) { padding-left: 3rem; border-left: 1px solid var(--line); }
.output-card:nth-last-child(-n + 2) { border-bottom: 0; }
.output-card .row-index { display: block; margin-bottom: 3rem; }
.output-card h3 { margin-bottom: .75rem; font-size: 1.25rem; }
.output-card p { max-width: 500px; margin: 0; color: var(--muted); }

.closing {
  padding-block: clamp(5rem, 9vw, 8rem);
  background: var(--graphite);
  color: var(--frost);
}
.closing-grid {
  display: grid;
  grid-template-columns: minmax(220px, .68fr) minmax(0, 1.32fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}
.closing .section-code { color: var(--coral); }
.closing h2 {
  max-width: 850px;
  margin-bottom: 1.5rem;
  font-size: clamp(2.5rem, 5.7vw, 5rem);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: 1;
}
.closing-copy { max-width: 780px; color: rgba(237, 242, 244, .72); font-size: 1.05rem; }
.closing-actions { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: .9rem; }
.button {
  min-height: 47px;
  padding: .8rem 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: 1px solid rgba(237, 242, 244, .6);
  color: var(--frost);
  font-size: .83rem;
  font-weight: 600;
  line-height: 1;
}
.button-primary { border-color: var(--crimson); background: var(--crimson); }
.button .arrow { transition: transform 180ms var(--ease); }
.button:hover .arrow { transform: translateX(4px); }

.footer {
  padding: 2.8rem 0 2rem;
  border-top: 1px solid rgba(141, 153, 174, .12);
  background: var(--ink);
  color: rgba(237, 242, 244, .62);
}
.footer-nav { display: grid; grid-template-columns: 1fr 1.4fr 1fr; gap: 3rem; margin-bottom: 2.5rem; }
.footer-col { display: flex; flex-direction: column; gap: .38rem; }
.footer-col-title {
  margin-bottom: .35rem;
  color: rgba(237, 242, 244, .55);
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.footer-col a { padding: .32rem 0; font-size: .74rem; }
.footer-col a:hover { color: var(--frost); }
.footer-bottom {
  padding-top: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-top: 1px solid rgba(141, 153, 174, .12);
}
.footer-mark { color: rgba(237, 242, 244, .75); font-family: var(--font-display); font-size: .82rem; }
.footer-tagline { font-size: .7rem; }

.js [data-reveal] { opacity: 0; transform: translateY(14px); }
.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 440ms var(--ease), transform 440ms var(--ease);
}

@media (min-width: 901px) {
  .section-head,
  .closing-grid {
    grid-template-columns: minmax(350px, .82fr) minmax(0, 1.18fr);
    gap: clamp(3rem, 6vw, 6rem);
    align-items: end;
  }
  .section-head h2,
  .closing h2 { font-size: clamp(2.75rem, 4vw, 3.75rem); line-height: 1.04; }
}

@media (max-width: 1060px) {
  .site-nav { padding-inline: 1.5rem; }
  .nav-links { gap: 1.25rem; }
  .comparison-head,
  .comparison-row { grid-template-columns: 95px minmax(165px, .65fr) minmax(200px, .85fr) minmax(220px, 1.05fr); gap: 1.3rem; }
}

@media (max-width: 900px) {
  .site-nav { min-height: 64px; padding: .7rem 1.5rem; backdrop-filter: none; }
  .nav-links { display: none; }
  .nav-links.open {
    position: fixed;
    inset: 0;
    z-index: 9999;
    padding: 5rem 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
    background: rgba(43, 45, 66, .99);
  }
  .nav-links.open a { padding: .7rem 1rem; color: var(--frost); font-size: 1.05rem; }
  .nav-links.open a::after { display: none; }
  .nav-links.open .nav-cta { margin-top: .5rem; padding: .7rem 1.5rem; text-align: center; }
  .menu-toggle { position: relative; z-index: 10000; display: block; }
  .menu-toggle[aria-expanded="true"] { position: fixed; top: .65rem; right: 1.1rem; }
  .menu-toggle[aria-expanded="true"] span { background: var(--frost); }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(6.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-6.5px) rotate(-45deg); }
  .dossier-hero { min-height: 650px; padding-top: 64px; }
  .hero-shell { min-height: 586px; }
  .section-head,
  .closing-grid { grid-template-columns: 1fr; gap: 2rem; }
  .comparison-head { display: none; }
  .comparison-row { grid-template-columns: 95px minmax(180px, .75fr) minmax(0, 1.25fr); gap: 1.25rem; }
  .comparison-row .comparison-fit { grid-column: 3; }
  .comparison-row .cell-label { display: block; }
  .stage-note { grid-template-columns: 1fr; gap: 1.25rem; }
  .registry-row { grid-template-columns: 52px minmax(190px, .7fr) minmax(0, 1.3fr); gap: 1.25rem; }
  .stage-features,
  .configuration-grid { grid-template-columns: 1fr; }
  .stage-feature,
  .configuration { min-height: 0; padding: 1.8rem 0; }
  .stage-feature + .stage-feature,
  .configuration + .configuration { padding-left: 0; border-top: 1px solid var(--line-soft); border-left: 0; }
  .stage-feature + .stage-feature { border-top-color: rgba(237, 242, 244, .22); }
  .stage-feature .row-index,
  .configuration .row-index { margin-bottom: 1rem; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: .35rem; }
}

@media (max-width: 680px) {
  .document-code { display: none; }
  .hero-shell { padding-block: 6rem 3rem; }
  .dossier-hero h1 { font-size: clamp(3.9rem, 20vw, 5.2rem); }
  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta div { padding: 1rem 0; }
  .hero-meta div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .comparison-row { grid-template-columns: 1fr; gap: .8rem; }
  .comparison-row .comparison-body,
  .comparison-row .comparison-fit { grid-column: 1; }
  .access-grid { grid-template-columns: 1fr; }
  .access-panel,
  .access-panel + .access-panel { padding: 1.8rem 0 2.2rem; border-left: 0; }
  .access-panel + .access-panel { border-top: 1px solid var(--line); }
  .access-panel .mode-type { margin-bottom: 1.2rem; }
  .access-meta div { grid-template-columns: 100px minmax(0, 1fr); }
  .registry-row { grid-template-columns: 38px 1fr; }
  .registry-row > div:last-child { grid-column: 2; }
  .output-matrix { grid-template-columns: 1fr; }
  .output-card,
  .output-card:nth-child(even) { min-height: 0; padding: 1.8rem 0; border-bottom: 1px solid var(--line); border-left: 0; }
  .output-card:last-child { border-bottom: 0; }
  .output-card .row-index { margin-bottom: 1.2rem; }
  .closing-actions { flex-direction: column; }
  .button { width: 100%; }
  .footer-nav { grid-template-columns: 1fr; gap: 1.5rem; }
}

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