:root {
  --ink: #0b0d0f;
  --graphite: #171b1f;
  --storm: #253746;
  --rain: #6d7780;
  --cloud: #d9dee1;
  --paper: #e8e0d2;
  --amber: #d38a45;
  --oxide: #a14f45;
  --white: #f4f3ef;
  --content: min(1280px, calc(100vw - 96px));
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "IBM Plex Sans", Inter, system-ui, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--cloud);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  transform: translateY(-160%);
  padding: 12px 18px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 600;
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  height: 78px;
  padding: 0 48px;
  border-bottom: 1px solid rgba(217, 222, 225, 0.12);
  background: linear-gradient(180deg, rgba(11, 13, 15, 0.82), rgba(11, 13, 15, 0));
  transition: height 300ms ease, background-color 300ms ease, backdrop-filter 300ms ease;
}

.site-header.is-scrolled {
  height: 64px;
  background: rgba(11, 13, 15, 0.86);
  backdrop-filter: blur(18px);
}

/* A filtered header would contain the fixed mobile menu inside its 64px height. */
body.menu-open .site-header { backdrop-filter: none; transition: none; }

.wordmark {
  display: inline-flex;
  align-items: center;
  width: max-content;
  gap: 11px;
  color: var(--white);
  font-size: 0.79rem;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.wordmark img {
  border-radius: 50%;
  filter: grayscale(1) contrast(1.1) brightness(1.8);
}

.site-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 42px); }
.site-nav a {
  position: relative;
  padding: 10px 0;
  color: rgba(244, 243, 239, 0.72);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  transition: color 180ms ease;
}
.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--amber);
  transition: transform 220ms ease;
}
.site-nav a:hover, .site-nav a.is-current { color: var(--white); }
.site-nav a:hover::after, .site-nav a.is-current::after { transform: scaleX(1); transform-origin: left; }

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-self: end;
  gap: 12px;
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.header-cta span { color: var(--amber); font-size: 1rem; transition: transform 180ms ease; }
.header-cta:hover span { transform: translate(3px, 3px); }

.menu-toggle { display: none; }

.scene { position: relative; }
.eyebrow {
  margin: 0 0 20px;
  color: var(--amber);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.scene-index {
  position: absolute;
  top: 116px;
  right: 48px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(244, 243, 239, 0.46);
  font-size: 0.66rem;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}
.scene-index span:first-child {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(244, 243, 239, 0.25);
  border-radius: 50%;
  color: var(--white);
}
.scene-index-light { color: rgba(244, 243, 239, 0.55); }

.hero {
  --hero-position: 50%;
  min-height: 100svh;
  background: #07090b;
}
.hero.is-cinematic { height: 210svh; }
.hero-stage { position: relative; min-height: 100svh; isolation: isolate; overflow: hidden; }
.is-cinematic .hero-stage { position: sticky; top: 0; height: 100svh; }
.hero-cinema, .hero-optics, .hero-vignette { position: absolute; inset: 0; pointer-events: none; }
.hero-cinema { container-type: size; transform-origin: 65% 42%; }
/* All optical layers share the photograph's coordinate system, including on mobile. */
.hero-world {
  position: absolute;
  width: max(100cqw, 177.6833cqh);
  height: max(100cqh, 56.2799cqw);
  left: var(--hero-position);
  top: 50%;
  transform: translate(calc(-1 * var(--hero-position)), -50%);
}
.hero-world > .hero-base, .hero-rain { position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; }
.hero-rain { mix-blend-mode: screen; opacity: .38; }
.hero-atmosphere { position: absolute; inset: 0; clip-path: polygon(0 0, 68% 0, 68% 49%, 0 64%); }
.hero-mist {
  position: absolute; inset: 3% 8% 35% -12%;
  background: radial-gradient(ellipse at 48% 38%, rgba(168,187,198,.13), transparent 52%), radial-gradient(ellipse at 25% 62%, rgba(148,167,179,.09), transparent 46%);
  animation: hero-mist-drift 19s ease-in-out infinite alternate;
  will-change: transform;
}
.hero-river {
  position: absolute; left: 6%; top: 50%; width: 48%; height: 15%;
  background: radial-gradient(ellipse at 44% 46%, rgba(188,197,200,.1), transparent 35%), radial-gradient(ellipse at 84% 25%, rgba(222,168,91,.11), transparent 20%);
  mix-blend-mode: screen;
  animation: hero-water-shimmer 7s ease-in-out infinite alternate;
}
.hero-reflection {
  position: absolute; left: 48%; top: 10%; width: 19%; height: 57%;
  background: radial-gradient(ellipse at 62% 45%, rgba(211,151,84,.11), transparent 64%);
  mix-blend-mode: screen;
  transform: rotate(-8deg);
  animation: hero-reflection-drift 13s ease-in-out infinite alternate;
}
.hero-vignette {
  background:
    linear-gradient(90deg, rgba(7,9,11,.66), rgba(7,9,11,.36) 40%, rgba(7,9,11,.02) 73%, rgba(7,9,11,.1)),
    linear-gradient(180deg, rgba(7,9,11,.18), transparent 40%, rgba(7,9,11,.66));
}
@keyframes hero-mist-drift { to { transform: translate3d(3%, 1%, 0); opacity: .65; } }
@keyframes hero-water-shimmer { to { opacity: .4; transform: translate3d(2px, 1px, 0) scaleY(.96); } }
@keyframes hero-reflection-drift { to { opacity: .55; transform: translate3d(4px, -2px, 0) rotate(-8deg); } }
.hero.is-atmosphere-paused *, .hero:not(.is-in-view) * { animation-play-state: paused !important; }
.hero-motion-toggle {
  position: absolute; z-index: 4; right: 48px; bottom: 12px; min-height: 32px;
  padding: 5px 0; border: 0; background: transparent; color: rgba(244,243,239,.62);
  font: 400 .62rem var(--sans); letter-spacing: .06em; cursor: pointer;
}
.hero-motion-toggle:hover { color: var(--white); }

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: calc(100% - 96px);
  min-height: 100svh;
  margin: auto;
  padding: 150px 0 126px;
}
.hero-kicker { max-width: 560px; }
.hero h1 {
  max-width: 940px;
  margin: 0;
  color: var(--white);
  font-family: var(--serif);
  font-size: clamp(3.6rem, 7.8vw, 8.6rem);
  font-weight: 400;
  letter-spacing: -0.048em;
  line-height: 0.88;
}
.hero h1 span { display: block; }
.hero-line-two { margin-left: clamp(28px, 7vw, 130px); color: var(--paper); }
.hero-detail {
  display: grid;
  grid-template-columns: minmax(280px, 530px) auto;
  align-items: end;
  gap: 54px;
  max-width: 930px;
  margin-top: clamp(32px, 5vh, 64px);
}
.hero-detail > p { margin: 0; color: rgba(244, 243, 239, 0.74); font-size: clamp(1rem, 1.3vw, 1.19rem); line-height: 1.7; }
.hero-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 21px; }

.hero-content:focus-within { opacity: 1 !important; }

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid rgba(244, 243, 239, 0.28);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { border-color: var(--amber); background: var(--amber); color: var(--ink); }
.button-primary:hover { border-color: #e3a467; background: #e3a467; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--graphite);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero .text-link, .text-link-light { color: var(--white); }
.text-link span { color: var(--amber); font-size: 1.05rem; transition: transform 180ms ease; }
.text-link:hover span { transform: translateX(4px); }

.hero-status {
  position: absolute;
  right: 48px;
  bottom: 48px;
  z-index: 3;
  display: flex;
  align-items: center;
  width: min(340px, 28vw);
  gap: 12px;
  color: rgba(244, 243, 239, 0.46);
  font-size: 0.61rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero-status i { height: 1px; flex: 1; background: linear-gradient(90deg, var(--rain), var(--amber)); }
.hero-status span:last-child { color: var(--paper); }

.scroll-cue {
  position: absolute;
  bottom: 38px;
  left: 48px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(244, 243, 239, 0.5);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.scroll-cue i { position: relative; width: 34px; height: 34px; border: 1px solid rgba(244, 243, 239, 0.24); border-radius: 50%; }
.scroll-cue i::after { content: ""; position: absolute; top: 10px; left: 15px; width: 2px; height: 8px; background: var(--amber); animation: scroll-cue 1.8s ease-in-out infinite; }
@keyframes scroll-cue { 50% { transform: translateY(5px); opacity: 0.45; } }

.gap-scene { height: 180vh; background: var(--paper); }
.gap-sticky { position: sticky; top: 0; min-height: 100svh; overflow: hidden; background: var(--paper); color: var(--ink); }
.gap-media { position: absolute; inset: 0 47% 0 0; overflow: hidden; }
.gap-media img { width: 100%; height: 100%; object-fit: cover; transform: scale(var(--gap-scale, 1.04)) translate3d(0, var(--gap-shift, 0px), 0); }
.gap-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,13,15,.12), transparent 55%, rgba(11,13,15,.24)), linear-gradient(180deg, rgba(11,13,15,.05), rgba(11,13,15,.62)); }
.gap-copy { position: relative; z-index: 2; width: 47%; margin-left: 53%; padding: 17vh 6vw 0 5vw; }
.gap-copy h2, .platform h2, .research h2, .closing h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5.4vw, 6.4rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}
.gap-summary { max-width: 610px; margin: 38px 0 0; color: #4b5359; font-size: 1.05rem; line-height: 1.7; }
.gap-layers {
  position: absolute;
  right: 5vw;
  bottom: 8vh;
  left: 53%;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}
.gap-layers li { position: relative; min-height: 130px; padding: 22px 18px 18px; border-top: 1px solid rgba(11,13,15,.25); opacity: 0.28; transform: translateY(12px); transition: opacity 420ms ease, transform 420ms ease, border-color 420ms ease; }
.gap-layers li::before { content: ""; position: absolute; top: -3px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--rain); }
.gap-layers li.is-active { opacity: 1; transform: translateY(0); border-color: var(--amber); }
.gap-layers li.is-active::before { background: var(--amber); }
.gap-layers span, .gap-layers small { display: block; }
.gap-layers span { margin-bottom: 14px; color: var(--rain); font-size: .65rem; letter-spacing: .13em; }
.gap-layers strong { display: block; min-height: 42px; font-family: var(--serif); font-size: 1.05rem; line-height: 1.1; }
.gap-layers small { margin-top: 10px; color: var(--rain); font-size: .69rem; line-height: 1.45; }

.transmission { height: 260vh; background: var(--ink); }
.transmission-sticky { position: sticky; top: 0; display: flex; flex-direction: column; min-height: 100svh; padding: 12vh max(48px, calc((100vw - 1280px) / 2)); overflow: hidden; }
.transmission-head { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .55fr); align-items: end; gap: 80px; }
.transmission-head h2 { max-width: 820px; margin: 0; color: var(--white); font-family: var(--serif); font-size: clamp(2.8rem, 5.2vw, 6rem); font-weight: 400; letter-spacing: -0.045em; line-height: .96; }
.transmission-head > p { margin: 0 0 8px; color: rgba(217,222,225,.62); font-size: .95rem; line-height: 1.75; }
.transmission-stage { display: grid; grid-template-columns: .78fr 1.22fr; min-height: 430px; flex: 1; align-items: center; gap: clamp(40px, 6vw, 100px); padding-top: 50px; }
.asset-window { position: relative; height: min(46vh, 470px); min-height: 340px; overflow: hidden; }
.asset-window::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(11,13,15,.88)), linear-gradient(90deg, rgba(11,13,15,.25), transparent); }
.asset-window img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06) translateX(var(--transmission-shift, 0%)); filter: saturate(.72) contrast(1.06); }
.asset-reading { position: absolute; right: 24px; bottom: 22px; left: 24px; z-index: 2; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.asset-reading span { color: rgba(217,222,225,.54); font-size: .62rem; letter-spacing: .16em; text-transform: uppercase; }
.asset-reading strong { max-width: 220px; color: var(--white); font-family: var(--serif); font-size: 1.3rem; font-weight: 400; line-height: 1.05; text-align: right; }
.transmission-flow {
  --flow-node-size: 9px;
  position: relative;
}
.transmission-flow ol { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; }
.transmission-flow li { position: relative; min-height: 180px; padding: 32px 18px 24px 0; opacity: .2; transition: opacity 360ms ease; }
.transmission-flow li::before {
  content: "";
  position: absolute;
  top: calc((1px - var(--flow-node-size)) / 2);
  left: 0;
  z-index: 2;
  width: var(--flow-node-size);
  height: var(--flow-node-size);
  border-radius: 50%;
  background: var(--rain);
  transform: scale(.78);
  transform-origin: center;
}
.transmission-flow li.is-active { opacity: 1; }
.transmission-flow li.is-active::before { background: var(--amber); box-shadow: 0 0 0 8px rgba(211,138,69,.12); transform: scale(1); }
.transmission-flow li.is-past { opacity: .56; }
.transmission-flow li span, .transmission-flow li small { display: block; }
.transmission-flow li span { margin-bottom: 26px; color: var(--rain); font-size: .64rem; letter-spacing: .16em; }
.transmission-flow li strong { display: block; max-width: 150px; min-height: 50px; overflow-wrap: anywhere; color: var(--white); font-family: var(--serif); font-size: 1.12rem; font-weight: 400; line-height: 1.1; }
.transmission-flow li small { max-width: 140px; margin-top: 15px; color: var(--rain); font-size: .7rem; line-height: 1.5; }
.flow-line {
  position: absolute;
  top: 0;
  right: calc(20% - var(--flow-node-size) / 2);
  left: calc(var(--flow-node-size) / 2);
  z-index: 1;
  height: 1px;
  overflow: hidden;
  background: rgba(217,222,225,.17);
}
.flow-line i {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(var(--flow-complete, 0));
  transform-origin: left;
  background: var(--amber);
}

.platform { padding: 150px 0 160px; background: var(--paper); color: var(--ink); }
.content-grid { display: grid; grid-template-columns: 1fr .72fr; align-items: end; gap: clamp(60px, 11vw, 180px); width: var(--content); margin: auto; }
.lead { margin: 0; color: #4f585e; font-family: var(--serif); font-size: clamp(1.35rem, 2vw, 2rem); line-height: 1.35; }
.platform-layers { width: var(--content); margin: 110px auto 0; }
.platform-layer { display: grid; grid-template-columns: 70px minmax(290px, .66fr) minmax(430px, 1.1fr); gap: clamp(35px, 5vw, 80px); align-items: center; padding: 70px 0; border-top: 1px solid rgba(11,13,15,.2); }
.platform-layer:last-child { border-bottom: 1px solid rgba(11,13,15,.2); }
.layer-number { align-self: start; padding-top: 3px; color: var(--rain); font-size: .72rem; letter-spacing: .18em; }
.layer-copy h3 { max-width: 510px; margin: 0; font-family: var(--serif); font-size: clamp(2.05rem, 3.4vw, 4rem); font-weight: 400; letter-spacing: -.035em; line-height: 1.02; }
.layer-copy > p:not(.eyebrow) { max-width: 520px; margin: 25px 0 0; color: #515a60; line-height: 1.7; }
.tag-list { display: flex; flex-wrap: wrap; gap: 0; margin: 30px 0 0; padding: 0; list-style: none; }
.tag-list li { padding: 6px 11px; border: 1px solid rgba(11,13,15,.18); color: #4c555a; font-size: .67rem; letter-spacing: .05em; text-transform: uppercase; }
.tag-list li + li { margin-left: -1px; }

.evidence-visual { position: relative; display: grid; grid-template-columns: 1fr 105px .78fr; align-items: center; min-height: 365px; padding: 34px; overflow: hidden; background: var(--graphite); color: var(--cloud); }
.evidence-visual::before { content: ""; position: absolute; inset: 0; opacity: .06; background-image: linear-gradient(rgba(255,255,255,.4) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.4) 1px, transparent 1px); background-size: 34px 34px; }
.document-sheet, .assumption-card { position: relative; z-index: 1; }
.document-sheet { min-height: 260px; padding: 26px; background: #d8d4ca; color: #202326; box-shadow: 0 22px 50px rgba(0,0,0,.28); }
.doc-meta { display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid rgba(11,13,15,.18); color: #5a6266; font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; }
.document-sheet p { margin: 38px 0 20px; font-family: var(--serif); font-size: 1.1rem; line-height: 1.45; }
.document-sheet mark { display: block; padding: 10px 12px; background: rgba(211,138,69,.3); color: #343536; font-size: .76rem; }
.evidence-link { position: relative; z-index: 1; height: 1px; background: rgba(217,222,225,.3); }
.evidence-link span { position: absolute; top: -4px; left: 50%; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 7px rgba(211,138,69,.13); }
.assumption-card { padding: 25px; border: 1px solid rgba(217,222,225,.2); background: rgba(11,13,15,.86); }
.assumption-card span, .assumption-card small { display: block; color: var(--rain); font-size: .61rem; letter-spacing: .12em; text-transform: uppercase; }
.assumption-card strong { display: block; margin-top: 25px; font-family: var(--serif); font-size: 1.24rem; font-weight: 400; }
.assumption-card b { display: block; margin: 7px 0 28px; color: var(--amber); font-family: var(--serif); font-size: 2.5rem; font-weight: 400; }

.layer-image { position: relative; min-height: 370px; overflow: hidden; background: var(--ink); }
.layer-image img { width: 100%; height: 370px; object-fit: cover; filter: saturate(.66) contrast(1.05); transition: transform 1.1s cubic-bezier(.16,1,.3,1); }
.layer-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(11,13,15,.86)); }
.layer-image:hover img { transform: scale(1.025); }
.image-caption { position: absolute; right: 26px; bottom: 22px; left: 26px; z-index: 2; display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; color: var(--white); }
.image-caption span { color: var(--rain); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; }
.image-caption strong { max-width: 220px; font-family: var(--serif); font-size: 1.2rem; font-weight: 400; text-align: right; }

.decision-visual { padding: 30px; border: 1px solid rgba(11,13,15,.15); background: #d9d6cd; }
.decision-topline { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid rgba(11,13,15,.14); color: #5e666b; font-size: .67rem; letter-spacing: .08em; text-transform: uppercase; }
.decision-topline small { color: #756047; }
.decision-metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin: 25px 0 30px; }
.decision-metrics div { padding: 0 20px; border-left: 1px solid rgba(11,13,15,.14); }
.decision-metrics div:first-child { padding-left: 0; border-left: 0; }
.decision-metrics small, .decision-metrics strong { display: block; }
.decision-metrics small { color: #6b7377; font-size: .59rem; letter-spacing: .1em; }
.decision-metrics strong { margin-top: 8px; font-family: var(--serif); font-size: 1.65rem; font-weight: 400; }
.sensitivity-row { display: grid; grid-template-columns: 90px 1fr 70px; align-items: center; gap: 16px; margin-top: 14px; color: #4c5357; font-size: .72rem; }
.sensitivity-row i { height: 3px; background: linear-gradient(90deg, var(--amber) var(--m), rgba(11,13,15,.12) var(--m)); }
.sensitivity-row b { font-weight: 500; text-align: right; }
.illustrative-note { margin: 24px 0 0; color: #777d80; font-size: .62rem; }

.application { display: grid; grid-template-columns: minmax(340px, .68fr) minmax(620px, 1.32fr); align-items: center; gap: clamp(60px, 8vw, 130px); min-height: 100svh; padding: 140px max(48px, calc((100vw - 1440px) / 2)); background: var(--storm); }
.application::before { content: ""; position: absolute; inset: 0; opacity: .1; background-image: linear-gradient(rgba(255,255,255,.25) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.25) 1px, transparent 1px); background-size: 48px 48px; }
.application-copy, .product-frame { position: relative; z-index: 1; }
.application-copy h2 { margin: 0; color: var(--white); font-family: var(--serif); font-size: clamp(2.7rem, 4.5vw, 5.3rem); font-weight: 400; letter-spacing: -.045em; line-height: .98; }
.application-copy > p:not(.eyebrow) { max-width: 550px; margin: 30px 0 0; color: rgba(217,222,225,.67); line-height: 1.75; }
.application-copy .text-link { margin-top: 36px; }
.product-frame { padding: 18px; border: 1px solid rgba(217,222,225,.22); background: rgba(11,13,15,.82); box-shadow: 0 45px 90px rgba(0,0,0,.35); }
.product-bar { display: flex; align-items: center; justify-content: space-between; padding: 5px 5px 18px; }
.product-brand { display: flex; align-items: center; gap: 12px; }
.product-brand img { width: 34px; height: 34px; border-radius: 8px; }
.product-brand span, .product-brand strong { display: block; }
.product-brand span { color: var(--rain); font-size: .53rem; letter-spacing: .16em; }
.product-brand strong { color: var(--cloud); font-size: .74rem; font-weight: 500; }
.live-label { padding: 5px 9px; border: 1px solid rgba(217,222,225,.14); color: var(--rain); font-size: .53rem; letter-spacing: .12em; text-transform: uppercase; }
.product-shell { display: grid; grid-template-columns: 54px 1fr; min-height: 530px; overflow: hidden; background: #edf0ee; color: #14202a; }
.product-rail { display: flex; flex-direction: column; align-items: center; gap: 22px; padding: 18px 0; background: #0f1921; }
.product-rail b { display: grid; place-items: center; width: 28px; height: 28px; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; color: var(--paper); font-family: var(--serif); font-weight: 400; }
.product-rail i { width: 22px; height: 22px; border: 1px solid rgba(255,255,255,.12); border-radius: 5px; }
.product-rail i.active { border-color: rgba(211,138,69,.8); background: rgba(211,138,69,.18); }
.product-main { padding: 28px; }
.deal-title span, .deal-title strong { display: block; }
.deal-title span { color: #788187; font-size: .57rem; font-weight: 600; letter-spacing: .14em; }
.deal-title strong { margin-top: 3px; font-family: var(--serif); font-size: 1.35rem; font-weight: 500; }
.workflow-pills { display: grid; grid-template-columns: repeat(5, 1fr); margin: 26px 0; border: 1px solid #cfd5d3; }
.workflow-pills span { position: relative; padding: 10px 8px; border-left: 1px solid #cfd5d3; color: #899095; font-size: .59rem; text-align: center; }
.workflow-pills span:first-child { border-left: 0; }
.workflow-pills span.done::before, .workflow-pills span.current::before { content: ""; display: inline-block; width: 5px; height: 5px; margin-right: 6px; border-radius: 50%; background: #607f75; }
.workflow-pills span.current { background: #18252e; color: #f2efe9; }
.workflow-pills span.current::before { background: var(--amber); }
.model-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.model-cell { min-height: 115px; padding: 20px; border: 1px solid #d6dcda; background: #f8f9f7; }
.model-cell.wide { grid-column: 1 / -1; }
.model-cell small { display: block; color: #81898d; font-size: .57rem; letter-spacing: .13em; text-transform: uppercase; }
.model-cell > strong { display: block; margin-top: 8px; font-family: var(--serif); font-size: 2rem; font-weight: 400; }
.model-cell > span { color: #7f878b; font-size: .63rem; }
.model-cell p { margin: 13px 0 0; color: #46535a; font-size: .72rem; }
.model-cell p i { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; border: 2px solid #607f75; }
.model-cell.workbook { position: relative; grid-column: 1 / -1; min-height: 160px; overflow: hidden; }
.sheet-head { display: flex; justify-content: space-between; padding-bottom: 10px; border-bottom: 1px solid #dde2e0; color: #6d777c; font-size: .62rem; }
.sheet-head b { padding: 2px 7px; background: #e8ded0; color: #755534; }
.sheet-rows { display: grid; grid-template-columns: repeat(6,1fr); gap: 1px; margin-top: 14px; background: #dce1df; }
.sheet-rows i { height: 26px; background: #f9faf8; }
.sheet-focus { position: absolute; right: 30px; bottom: 20px; min-width: 130px; padding: 10px 13px; border: 2px solid #a4713d; background: #fff; box-shadow: 0 12px 25px rgba(23,27,31,.13); }
.sheet-focus strong { display: block; margin-top: 3px; font-family: var(--serif); font-size: 1.3rem; font-weight: 400; }
.product-caption { margin: 16px 0 0; color: var(--rain); font-size: .59rem; letter-spacing: .12em; text-align: center; text-transform: uppercase; }

.research { padding: 150px 0; background: #d8d6ce; color: var(--ink); }
.method-note { margin: 28px 0 0; color: #6b7377; font-size: .82rem; line-height: 1.6; }
.research-grid { display: grid; grid-template-columns: 1.35fr .825fr .825fr; gap: 1px; width: var(--content); margin: 90px auto 0; background: rgba(11,13,15,.18); border: 1px solid rgba(11,13,15,.18); }
.research-card { position: relative; min-height: 560px; padding: 42px; overflow: hidden; background: #dfddd5; }
.research-card.featured { display: grid; grid-template-rows: 1fr auto; padding: 0; background: var(--graphite); color: var(--cloud); }
.paper-figure { position: relative; min-height: 315px; overflow: hidden; background: #111519; }
.paper-figure::before { content: ""; position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px), linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px); background-size: 36px 36px; }
.paper-figure svg { position: absolute; right: 24px; bottom: 44px; left: 24px; width: calc(100% - 48px); height: 220px; }
.paper-figure .range { fill: rgba(211,138,69,.13); }
.paper-figure .line { fill: none; stroke: var(--amber); stroke-width: 2; }
.figure-label { position: absolute; right: 28px; bottom: 22px; left: 28px; display: flex; justify-content: space-between; color: var(--rain); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; }
.research-card-copy { padding: 36px 42px 43px; }
.research-card > span, .research-card-copy > span { color: #777e82; font-size: .62rem; font-weight: 600; letter-spacing: .16em; }
.research-card-copy h3, .research-card > h3 { margin: 21px 0 0; font-family: var(--serif); font-size: clamp(1.85rem, 2.5vw, 3.1rem); font-weight: 400; letter-spacing: -.03em; line-height: 1.05; }
.research-card-copy p, .research-card > p { margin: 22px 0 0; color: #687176; font-size: .89rem; line-height: 1.68; }
.research-card-copy p { color: rgba(217,222,225,.6); }
.research-card-copy b { display: block; margin-top: 23px; color: var(--amber); font-size: .7rem; font-weight: 500; letter-spacing: .09em; }
.research-number { position: absolute; right: 28px; bottom: 22px; color: rgba(11,13,15,.08); font-family: var(--serif); font-size: 8rem; line-height: 1; }
.mini-plot { position: absolute; right: 42px; bottom: 42px; left: 42px; display: flex; align-items: end; gap: 8px; height: 105px; border-bottom: 1px solid rgba(11,13,15,.2); }
.mini-plot i { flex: 1; border-top: 2px solid var(--storm); background: rgba(37,55,70,.1); }
.mini-plot i:nth-child(1){height:24%}.mini-plot i:nth-child(2){height:37%}.mini-plot i:nth-child(3){height:31%}.mini-plot i:nth-child(4){height:58%}.mini-plot i:nth-child(5){height:70%}.mini-plot i:nth-child(6){height:61%}.mini-plot i:nth-child(7){height:88%;border-color:var(--amber);background:rgba(211,138,69,.12)}
.research-chain { position: absolute; right: 42px; bottom: 75px; left: 42px; display: flex; align-items: center; justify-content: space-between; }
.research-chain::before { content: ""; position: absolute; right: 0; left: 0; height: 1px; background: rgba(11,13,15,.2); }
.research-chain i { position: relative; width: 10px; height: 10px; border-radius: 50%; background: var(--storm); }
.research-chain i:last-child { background: var(--amber); box-shadow: 0 0 0 9px rgba(211,138,69,.14); }
.uncertainty { display: grid; grid-template-columns: .36fr 1fr .7fr; gap: 70px; align-items: start; width: var(--content); margin: 90px auto 0; padding-top: 55px; border-top: 1px solid rgba(11,13,15,.22); }
.uncertainty h3 { margin: 0; font-family: var(--serif); font-size: clamp(2.25rem, 3.7vw, 4.4rem); font-weight: 400; letter-spacing: -.035em; line-height: 1; }
.uncertainty > div > p { max-width: 670px; margin: 27px 0 0; color: #626a6e; line-height: 1.7; }
.range-key { align-self: center; color: #677075; font-size: .63rem; letter-spacing: .08em; text-transform: uppercase; }
.range-key i { display: block; height: 8px; margin: 16px 0; background: linear-gradient(90deg, rgba(37,55,70,.15), var(--storm), var(--amber)); clip-path: polygon(0 40%, 100% 0, 100% 100%, 0 60%); }
.range-key span:last-child { float: right; }

.philosophy { height: 300vh; background: var(--ink); }
.philosophy-sticky { position: sticky; top: 0; min-height: 100svh; overflow: hidden; }
.philosophy-sticky > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(var(--philosophy-scale, 1.03)) translateX(var(--philosophy-shift, 0%)); filter: saturate(.65) contrast(1.08); }
.philosophy-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,9,11,.88), rgba(7,9,11,.35) 58%, rgba(7,9,11,.2)), linear-gradient(180deg, rgba(7,9,11,.2), rgba(7,9,11,.68)); }
.philosophy-lines { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: center; width: var(--content); min-height: 100svh; margin: auto; }
.philosophy-lines p { position: absolute; max-width: 1000px; margin: 0; color: var(--white); font-family: var(--serif); font-size: clamp(3.1rem, 7vw, 8rem); letter-spacing: -.045em; line-height: .94; opacity: .08; transform: translateY(30px); transition: opacity 500ms ease, transform 500ms ease; }
.philosophy-lines p.is-active { opacity: 1; transform: translateY(0); }

.closing { padding: 170px 0 100px; background: var(--paper); color: var(--ink); }
.closing-grid { display: grid; grid-template-columns: .42fr 1.2fr .6fr; gap: clamp(40px, 7vw, 110px); align-items: start; width: var(--content); margin: auto; }
.closing h2 { font-size: clamp(3rem, 5.6vw, 6.8rem); }
.closing-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 32px; padding-top: 8px; }
.closing .button-primary { min-width: 190px; }
.closing-note { grid-column: 2 / -1; margin: 65px 0 0; padding-top: 30px; border-top: 1px solid rgba(11,13,15,.2); color: #6a7276; font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; }

.site-footer { display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 30px; padding: 38px 48px; border-top: 1px solid rgba(217,222,225,.13); background: var(--ink); color: var(--rain); font-size: .68rem; letter-spacing: .07em; }
.footer-wordmark { color: var(--cloud); }
.site-footer > p { margin: 0; text-align: center; text-transform: uppercase; }
.site-footer > div { display: flex; justify-content: flex-end; gap: 22px; }
.site-footer a:hover { color: var(--white); }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 900ms cubic-bezier(.16,1,.3,1), transform 900ms cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1180px) {
  :root { --content: min(100% - 64px, 1120px); }
  .site-header { padding: 0 32px; }
  .site-nav { gap: 22px; }
  .scene-index { right: 32px; }
  .scroll-cue { left: 32px; }
  .hero-status { right: 32px; }
  .gap-copy { padding-right: 3.5vw; }
  .gap-layers { right: 3.5vw; }
  .transmission-sticky { padding-right: 32px; padding-left: 32px; }
  .transmission-flow li { padding-right: 10px; }
  .transmission-flow li strong { font-size: .9rem; }
  .platform-layer { grid-template-columns: 46px minmax(250px, .65fr) minmax(380px, 1fr); gap: 36px; }
  .application { grid-template-columns: .75fr 1.25fr; padding-right: 32px; padding-left: 32px; gap: 50px; }
  .product-shell { min-height: 500px; }
  .research-card { padding: 32px; }
  .mini-plot, .research-chain { right: 32px; left: 32px; }
}

@media (min-width: 921px) and (max-width: 1040px) {
  .transmission-stage { grid-template-columns: .58fr 1.42fr; gap: 28px; }
  .transmission-flow li strong { overflow-wrap: normal; font-size: .95rem; }
}

@media (max-width: 920px) {
  .hero { --hero-position: 80%; }
  :root { --content: calc(100% - 48px); }
  .site-header { grid-template-columns: 1fr auto; padding: 0 24px; }
  .header-cta { display: none; }
  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 0 10px;
    border: 0;
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) { display: block; width: 100%; height: 1px; background: var(--white); transition: transform 220ms ease; }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    padding: 100px 24px;
    background: rgba(11,13,15,.98);
    opacity: 0;
    visibility: hidden;
    transition: opacity 240ms ease, visibility 240ms ease;
  }
  .site-nav.is-open { opacity: 1; visibility: visible; }
  .site-nav a { font-family: var(--serif); font-size: 2.8rem; letter-spacing: -.03em; }
  .hero-detail { grid-template-columns: 1fr; gap: 28px; max-width: 600px; }
  .hero-actions { flex-direction: row; align-items: center; }
  .hero-status { display: none; }
  .gap-scene { height: auto; }
  .gap-sticky { position: relative; display: grid; min-height: auto; }
  .gap-media { position: relative; inset: auto; height: 62vh; min-height: 480px; }
  .gap-copy { width: var(--content); margin: 0 auto; padding: 90px 0 55px; }
  .gap-layers { position: relative; inset: auto; grid-template-columns: repeat(2, 1fr); width: var(--content); margin: 0 auto; padding-bottom: 90px; }
  .gap-layers li { opacity: 1; transform: none; }
  .transmission { height: auto; }
  .transmission-sticky { position: relative; min-height: auto; padding: 110px 24px; }
  .transmission-head { grid-template-columns: 1fr; gap: 28px; }
  .transmission-stage { grid-template-columns: 1fr; padding-top: 55px; }
  .asset-window { height: 460px; }
  .transmission-flow ol { grid-template-columns: 1fr; }
  .transmission-flow li { min-height: auto; padding: 22px 0 22px 35px; opacity: 1; }
  .transmission-flow li::before { top: 29px; left: calc((1px - var(--flow-node-size)) / 2); }
  .transmission-flow li span { margin-bottom: 8px; }
  .transmission-flow li strong { max-width: none; min-height: auto; }
  .transmission-flow li small { max-width: none; margin-top: 6px; }
  .flow-line { top: 33px; right: auto; bottom: 33px; left: 0; width: 1px; height: auto; background: rgba(217,222,225,.17); }
  .flow-line i { width: 1px; height: 100%; transform: none; background: linear-gradient(var(--amber), rgba(217,222,225,.17)); }
  .content-grid { grid-template-columns: 1fr; gap: 40px; }
  .platform-layer { grid-template-columns: 44px 1fr; }
  .platform-layer > :last-child { grid-column: 2; }
  .evidence-visual { min-height: 420px; }
  .application { grid-template-columns: 1fr; min-height: auto; padding: 120px 24px; }
  .application-copy { max-width: 760px; }
  .research-grid { grid-template-columns: 1fr 1fr; }
  .research-card.featured { grid-column: 1 / -1; }
  .research-card { min-height: 500px; }
  .uncertainty { grid-template-columns: 1fr 1fr; gap: 45px; }
  .uncertainty > .eyebrow { grid-column: 1 / -1; }
  .closing-grid { grid-template-columns: 1fr; }
  .closing-note { grid-column: 1; }
  .site-footer { grid-template-columns: 1fr 1fr; padding: 36px 24px; }
  .site-footer > p { display: none; }
}

@media (max-width: 640px) {
  :root { --content: calc(100% - 36px); }
  .scene-index { top: 94px; right: 18px; }
  .scene-index span:last-child { display: none; }
  .hero { --hero-position: 86%; }
  .hero-vignette { background: linear-gradient(90deg, rgba(7,9,11,.72), rgba(7,9,11,.18)), linear-gradient(180deg, rgba(7,9,11,.15), rgba(7,9,11,.74)); }
  .hero-content { width: calc(100% - 36px); padding: 140px 0 108px; }
  .hero h1 { font-size: clamp(2.7rem, 12vw, 4.5rem); line-height: .98; }
  .hero-detail { margin-top: 28px; gap: 22px; }
  .hero-detail > p { font-size: .95rem; line-height: 1.55; }
  .hero-kicker { max-width: 270px; font-size: .64rem; }
  .hero-motion-toggle { right: 18px; bottom: 24px; min-height: 44px; }
  .hero-line-two { margin-left: 0; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .scroll-cue { bottom: 23px; left: 18px; }
  .scroll-cue span { display: none; }
  .gap-media { min-height: 430px; }
  .gap-copy h2, .platform h2, .research h2, .closing h2 { font-size: clamp(2.75rem, 13vw, 4.1rem); }
  .gap-layers { grid-template-columns: 1fr; }
  .gap-layers li { min-height: auto; padding: 22px 0; }
  .gap-layers strong { min-height: auto; }
  .transmission-sticky { padding: 100px 18px; }
  .transmission-head h2 { font-size: 3.35rem; }
  .asset-window { min-height: 330px; height: 58vh; }
  .platform { padding: 100px 0; }
  .platform-layers { margin-top: 70px; }
  .platform-layer { grid-template-columns: 1fr; gap: 26px; padding: 55px 0; }
  .platform-layer > :last-child { grid-column: 1; }
  .layer-number { padding: 0; }
  .evidence-visual { grid-template-columns: 1fr; min-height: 610px; padding: 22px; }
  .document-sheet { transform: translateY(-40px) rotate(-2deg); }
  .evidence-link { display: none; }
  .assumption-card { width: 84%; justify-self: end; margin-top: -100px; }
  .decision-metrics { grid-template-columns: 1fr; gap: 18px; }
  .decision-metrics div { padding: 0 0 16px; border-bottom: 1px solid rgba(11,13,15,.14); border-left: 0; }
  .application { padding: 100px 18px; }
  .application-copy h2 { font-size: 3.2rem; }
  .product-frame { margin-right: -7px; margin-left: -7px; padding: 10px; }
  .product-shell { grid-template-columns: 1fr; min-height: auto; }
  .product-rail { display: none; }
  .product-main { padding: 20px; }
  .workflow-pills { grid-template-columns: 1fr; }
  .workflow-pills span { border-top: 1px solid #cfd5d3; border-left: 0; }
  .workflow-pills span:first-child { border-top: 0; }
  .model-grid { grid-template-columns: 1fr; }
  .model-cell { grid-column: 1 !important; }
  .live-label { display: none; }
  .research { padding: 100px 0; }
  .research-grid { grid-template-columns: 1fr; margin-top: 65px; }
  .research-card.featured { grid-column: 1; }
  .research-card { min-height: 480px; padding: 28px; }
  .research-card-copy { padding: 30px 28px 35px; }
  .uncertainty { grid-template-columns: 1fr; gap: 30px; }
  .uncertainty > .eyebrow { grid-column: 1; }
  .philosophy { height: 230vh; }
  .philosophy-sticky > img { object-position: 62% center; }
  .philosophy-lines p { font-size: clamp(3rem, 15vw, 5rem); }
  .closing { padding: 110px 0 70px; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer > div { justify-content: flex-start; flex-wrap: wrap; }
}

@media (min-width: 1920px) {
  .hero-content { width: calc(100% - 12vw); }
  .hero h1 { max-width: 1400px; font-size: clamp(8rem, 6.2vw, 10rem); }
  .hero-detail { max-width: 1080px; }
}

@media (max-height: 600px) and (min-width: 641px) {
  .hero-content { padding: 135px 0 100px; }
  .hero h1 { font-size: clamp(3rem, 6vw, 5rem); }
}