:root {
  --paper: #f2f5f8;
  --paper-blue: #e9f0f7;
  --ink: #10141a;
  --muted: #5f6b79;
  --line: rgba(16, 20, 26, .14);
  --blue: #1767ff;
  --blue-deep: #0b39a7;
  --electric: #b9ff35;
  --night: #0a101b;
  --mono: "IBM Plex Mono", monospace;
  --display: "Manrope", sans-serif;
  --body: "DM Sans", sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { overflow-x: clip; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  background:
    radial-gradient(circle at 18% 8%, rgba(23, 103, 255, .12), transparent 28%),
    radial-gradient(circle at 88% 18%, rgba(185, 255, 53, .08), transparent 25%);
}

img { max-width: 100%; }
a { color: inherit; }
button, input { font: inherit; }

.shell {
  width: min(1240px, calc(100% - 80px));
  margin-inline: auto;
}

.reading-progress {
  position: fixed;
  z-index: 9800;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
}

.hero {
  position: relative;
  min-height: 100vh;
  padding: 138px 0 70px;
  overflow: hidden;
  background:
    linear-gradient(rgba(16, 20, 26, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 20, 26, .045) 1px, transparent 1px),
    var(--paper);
  background-size: 56px 56px;
}

.hero::after {
  content: "M";
  position: absolute;
  z-index: 0;
  top: -9vw;
  right: -2vw;
  color: rgba(23, 103, 255, .045);
  font: 800 clamp(340px, 52vw, 780px)/1 var(--display);
  letter-spacing: -.12em;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  z-index: 0;
  width: 560px;
  height: 560px;
  top: 20%;
  right: 8%;
  border-radius: 50%;
  background: rgba(23, 103, 255, .13);
  filter: blur(100px);
  pointer-events: none;
}

.hero-copy, .hero-stage, .facts { position: relative; z-index: 1; }

.eyebrow {
  display: flex;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 500 11px/1.3 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1220px;
  margin: 46px 0 38px;
  font: 700 clamp(60px, 8.4vw, 128px)/.93 var(--display);
  letter-spacing: -.07em;
}

.hero h1 em {
  position: relative;
  color: var(--blue);
  font-style: normal;
  white-space: nowrap;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -.08em;
  left: .04em;
  height: .08em;
  border-radius: 99px;
  background: var(--electric);
  transform: rotate(-1.25deg);
  mix-blend-mode: multiply;
}

.hero-intro {
  display: grid;
  grid-template-columns: minmax(0, 650px) auto;
  justify-content: space-between;
  align-items: end;
  gap: 40px;
  margin-bottom: 78px;
}

.lede {
  margin: 0;
  color: #2f3946;
  font-size: clamp(20px, 2vw, 29px);
  line-height: 1.45;
  letter-spacing: -.025em;
}

.text-link {
  display: inline-flex;
  gap: 22px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid var(--ink);
  font: 500 12px/1 var(--mono);
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-link span { transition: transform .35s var(--ease); }
.text-link:hover span { transform: translateY(4px); }

.hero-stage { perspective: 1600px; }

.product-window {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(16, 20, 26, .16);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(12, 28, 52, .13);
}

.product-window--hero {
  border-color: rgba(255, 255, 255, .16);
  background: var(--night);
  box-shadow: 0 50px 110px rgba(8, 27, 59, .26);
  transform: rotateX(1.4deg) rotateY(-1.4deg);
}

.window-bar {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .92);
  color: #586474;
  font: 500 10px/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.product-window--hero .window-bar,
.product-window--dark .window-bar {
  border-bottom-color: rgba(255, 255, 255, .12);
  background: #0e1623;
  color: #b7c3d4;
}

.window-dots { display: flex; gap: 6px; }
.window-dots i { width: 7px; height: 7px; border-radius: 50%; background: #41526b; }
.window-dots i:first-child { background: var(--electric); }

.motion-toggle {
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 99px;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
}

.product-window > img { width: 100%; height: auto; display: block; }
.product-window > .motion-still { width: 100%; height: auto; display: block; }
.product-window--hero > img { aspect-ratio: 16/9; object-fit: cover; }
.product-window--hero > .motion-still { aspect-ratio: 16/9; object-fit: cover; }

.stage-note {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  margin-top: 16px;
  color: var(--muted);
  font: 400 11px/1.5 var(--mono);
}

.stage-note span { color: var(--blue); }

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 64px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.facts div { min-height: 116px; padding: 23px 24px 20px 0; }
.facts div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.facts span, .facts strong { display: block; }
.facts span { margin-bottom: 12px; color: var(--muted); font: 500 10px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.facts strong { font-size: 15px; line-height: 1.45; }

.story { background: #fff; }
.story-layout { display: grid; grid-template-columns: 190px minmax(0, 980px); gap: clamp(55px, 8vw, 130px); justify-content: center; }

.chapter-rail {
  position: sticky;
  top: 118px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-top: 142px;
}

.rail-kicker {
  margin-bottom: 18px;
  color: var(--muted);
  font: 500 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.chapter-rail a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 8px 0;
  color: #818a96;
  font-size: 13px;
  text-decoration: none;
  transition: color .25s ease, transform .25s ease;
}

.chapter-rail a b { color: #aab1ba; font: 400 9px/1 var(--mono); }
.chapter-rail a:hover, .chapter-rail a.is-active { color: var(--ink); transform: translateX(5px); }
.chapter-rail a.is-active b { color: var(--blue); }

.story-body { min-width: 0; }

.chapter {
  padding: 145px 0;
  scroll-margin-top: 40px;
  border-bottom: 1px solid var(--line);
}

.chapter:last-child { border-bottom: 0; }
.chapter-copy { max-width: 800px; }

.chapter-label, .mini-label {
  margin: 0 0 30px;
  color: var(--blue);
  font: 500 11px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.chapter h2 {
  max-width: 880px;
  margin: 0 0 32px;
  font: 700 clamp(42px, 5.2vw, 72px)/1.03 var(--display);
  letter-spacing: -.055em;
}

.chapter .intro {
  max-width: 760px;
  margin: 0;
  color: #4b5867;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.55;
  letter-spacing: -.018em;
}

.problem-chain {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  margin: 65px 0 32px;
}

.chain-node {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}

.chain-node--core { background: var(--blue); color: #fff; transform: rotate(-2deg); box-shadow: 0 20px 50px rgba(23, 103, 255, .23); }
.chain-node small { color: var(--muted); font: 500 10px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.chain-node--core small { color: rgba(255, 255, 255, .66); }
.chain-node strong { font: 700 25px/1 var(--display); letter-spacing: -.04em; }
.chain-node span { color: var(--muted); font-size: 12px; line-height: 1.4; }
.chain-node--core span { color: rgba(255, 255, 255, .75); }
.chain-arrow { color: var(--blue); font: 400 20px/1 var(--mono); }

.source-note {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  gap: 26px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.source-note span { font: 500 10px/1.5 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.source-note p { margin: 0; }
.source-note a { align-self: start; color: var(--blue-deep); font: 500 10px/1.5 var(--mono); letter-spacing: .05em; text-decoration: none; text-transform: uppercase; }

blockquote {
  margin: 82px 0 0;
  padding: 52px 55px;
  border: 0;
  border-radius: 20px;
  background: var(--night);
  color: #fff;
  box-shadow: 0 30px 80px rgba(10, 16, 27, .14);
}

blockquote span { color: var(--electric); font: 500 10px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
blockquote p { max-width: 760px; margin: 28px 0 0; font: 600 clamp(28px, 3.7vw, 48px)/1.2 var(--display); letter-spacing: -.04em; }

.jobs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 58px 0 82px;
}

.jobs-grid article {
  min-height: 335px;
  display: flex;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fff;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

.jobs-grid article:hover { transform: translateY(-7px); box-shadow: 0 20px 45px rgba(13, 28, 47, .09); }
.job-num { color: var(--blue); font: 500 10px/1 var(--mono); }
.jobs-grid h3 { margin: auto 0 16px; font: 700 23px/1.15 var(--display); letter-spacing: -.035em; }
.jobs-grid p { margin: 0 0 20px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.jobs-grid small { padding-top: 15px; border-top: 1px solid var(--line); color: #313b47; font: 500 9px/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; }

.annotated-ui { margin: 0 0 95px; }
.annotated-ui figcaption { max-width: 710px; margin: 21px 0 0 auto; color: var(--muted); font-size: 14px; line-height: 1.6; }
.annotated-ui figcaption b { color: var(--ink); }

.principles { display: grid; grid-template-columns: .82fr 1.18fr; gap: 70px; padding: 58px; border-radius: 20px; background: var(--paper-blue); }
.principles h3 { margin: 0; font: 700 31px/1.15 var(--display); letter-spacing: -.04em; }
.principles ol { margin: 0; padding: 0; list-style: none; }
.principles li { display: grid; grid-template-columns: 32px 1fr; gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.principles li:first-child { padding-top: 0; border-top: 0; }
.principles li > span { color: var(--blue); font: 500 9px/1.4 var(--mono); }
.principles strong { font: 600 15px/1.4 var(--display); }
.principles li p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.45; }

.decision { margin-top: 100px; padding-top: 38px; border-top: 1px solid var(--line); }
.decision-copy { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 0 36px; margin-bottom: 36px; }
.decision-index { grid-row: 1 / span 5; padding-top: 7px; color: var(--blue); font: 500 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.decision h3 { max-width: 690px; margin: 0 0 18px; font: 700 clamp(30px, 3.7vw, 47px)/1.1 var(--display); letter-spacing: -.045em; }
.decision-copy > p { max-width: 720px; margin: 0 0 25px; color: var(--muted); font-size: 17px; }
.evidence-row { display: grid; grid-template-columns: 82px 1fr; gap: 18px; max-width: 690px; padding: 10px 0; border-top: 1px solid var(--line); }
.evidence-row span { color: var(--muted); font: 500 9px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.evidence-row p { margin: 0; font-size: 13px; line-height: 1.5; }

.decision .product-window { margin-left: 176px; }
.decision--feature .product-window { margin-left: 70px; }
.product-window--dark { border-color: rgba(255, 255, 255, .13); background: var(--night); box-shadow: 0 30px 75px rgba(8, 20, 40, .2); }

.view-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-left: 70px; }
.view-pair figure { position: relative; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: #fff; box-shadow: 0 20px 55px rgba(12, 27, 48, .11); }
.view-pair img { width: 100%; height: 100%; min-height: 360px; display: block; object-fit: cover; object-position: left top; }
.view-pair figcaption { position: absolute; bottom: 12px; left: 12px; padding: 8px 11px; border-radius: 99px; background: var(--night); color: #fff; font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.miss-card {
  display: grid;
  grid-template-columns: 1fr auto 1.4fr;
  gap: 28px;
  align-items: center;
  margin: 60px 0 70px;
  padding: 35px;
  border: 1px solid rgba(23, 103, 255, .24);
  border-radius: 18px;
  background: #edf3ff;
}

.miss-card span { display: block; margin-bottom: 15px; color: var(--muted); font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.miss-card strong { display: block; color: var(--blue-deep); font: 700 24px/1.2 var(--display); letter-spacing: -.035em; }
.miss-card p { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.miss-arrow { color: var(--blue); font: 400 29px/1 var(--mono); }
.motion-feature { margin: 0; }

.lesson-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin-top: 50px; }
.lesson-grid div { padding-top: 20px; border-top: 1px solid var(--line); }
.lesson-grid span { color: var(--blue); font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.lesson-grid p { margin: 15px 0 0; color: var(--muted); font-size: 15px; }

.motion-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 70px; }
.motion-grid figure { margin: 0; }
.motion-grid figcaption { min-height: 66px; padding: 17px 20px; border-top: 1px solid rgba(255, 255, 255, .12); color: #bdc8d7; font-size: 12px; line-height: 1.45; }

.outcomes { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1fr; margin-top: 105px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.outcomes > div { min-height: 190px; display: flex; flex-direction: column; justify-content: flex-end; padding: 28px 22px; }
.outcomes > div + div { border-left: 1px solid var(--line); }
.outcomes span { margin-bottom: auto; color: var(--blue); font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.outcomes strong { font: 700 clamp(42px, 5vw, 70px)/1 var(--display); letter-spacing: -.06em; }
.outcomes p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.4; }
.outcome-lead { background: var(--blue); color: #fff; transform: translateY(-14px); }
.outcome-lead span, .outcome-lead p { color: rgba(255, 255, 255, .75); }
.outcome-caveat { max-width: 660px; margin: 24px 0 0 auto; color: var(--muted); font: 400 10px/1.6 var(--mono); }

.reflection { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; margin-top: 110px; padding: 62px; border-radius: 20px; background: var(--night); color: #fff; }
.reflection h3 { margin: 0; font: 700 39px/1.1 var(--display); letter-spacing: -.045em; }
.reflection > p { margin: 4px 0 0; color: #bdc8d7; font-size: 17px; line-height: 1.75; }

.case-sources { display: flex; flex-wrap: wrap; gap: 16px 26px; align-items: center; margin-top: 55px; }
.case-sources span { margin-right: auto; color: var(--muted); font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.case-sources a { padding-bottom: 4px; border-bottom: 1px solid var(--line); color: var(--blue-deep); font: 500 10px/1 var(--mono); letter-spacing: .04em; text-decoration: none; text-transform: uppercase; }

.case-footer { padding: 120px 0 50px; background: var(--blue); color: #fff; }
.case-footer p { margin: 0 0 30px; color: rgba(255, 255, 255, .65); font: 500 10px/1 var(--mono); letter-spacing: .11em; text-transform: uppercase; }
.case-footer > .shell > a { display: flex; justify-content: space-between; align-items: flex-end; padding: 10px 0 45px; border-bottom: 1px solid rgba(255, 255, 255, .28); font: 700 clamp(55px, 9vw, 130px)/.9 var(--display); letter-spacing: -.07em; text-decoration: none; }
.case-footer > .shell > a span { align-self: flex-start; font: 500 10px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.case-footer > .shell > a b { font-size: .55em; font-weight: 500; transition: transform .4s var(--ease); }
.case-footer > .shell > a:hover b { transform: translate(8px, -8px); }
.footer-links { display: flex; justify-content: space-between; padding-top: 28px; }
.footer-links a { font: 500 10px/1 var(--mono); letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .shell { width: min(100% - 48px, 1080px); }
  .story-layout { grid-template-columns: 145px minmax(0, 1fr); gap: 48px; }
  .principles { gap: 40px; padding: 40px; }
  .decision .product-window { margin-left: 80px; }
  .decision--feature .product-window, .view-pair { margin-left: 0; }
  .outcomes { grid-template-columns: 1fr 1fr; }
  .outcomes > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .outcomes > div:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 820px) {
  .shell { width: min(100% - 36px, 760px); }
  .hero { padding-top: 112px; }
  .hero h1 { font-size: clamp(52px, 14vw, 88px); }
  .hero h1 em { white-space: normal; }
  .hero-intro { grid-template-columns: 1fr; align-items: start; margin-bottom: 52px; }
  .text-link { justify-self: start; }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .facts div:nth-child(4) { border-top: 1px solid var(--line); }
  .story-layout { display: block; }
  .chapter-rail { display: none; }
  .chapter { padding: 100px 0; }
  .problem-chain { grid-template-columns: 1fr; }
  .chain-arrow { transform: rotate(90deg); justify-self: center; }
  .source-note { grid-template-columns: 1fr; gap: 13px; }
  blockquote { padding: 38px 30px; }
  .jobs-grid { grid-template-columns: 1fr; }
  .jobs-grid article { min-height: 250px; }
  .principles, .reflection { grid-template-columns: 1fr; gap: 35px; }
  .decision-copy { grid-template-columns: 1fr; }
  .decision-index { grid-row: auto; margin-bottom: 18px; }
  .decision .product-window { margin-left: 0; }
  .view-pair, .motion-grid { grid-template-columns: 1fr; }
  .view-pair img { min-height: 0; }
  .miss-card { grid-template-columns: 1fr; }
  .miss-arrow { transform: rotate(45deg); }
  .lesson-grid { grid-template-columns: 1fr; gap: 20px; }
  .reflection { padding: 40px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .shell { width: calc(100% - 28px); }
  .hero { padding: 96px 0 44px; background-size: 38px 38px; }
  .eyebrow span:last-child { display: none; }
  .hero h1 { margin-top: 32px; font-size: clamp(45px, 14vw, 68px); }
  .lede { font-size: 19px; }
  .window-bar { min-height: 40px; padding: 0 12px; }
  .window-dots { display: none; }
  .motion-toggle { padding: 5px 8px; }
  .stage-note { justify-content: flex-start; }
  .facts { grid-template-columns: 1fr; }
  .facts div { min-height: 92px; }
  .facts div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .chapter { padding: 82px 0; }
  .chapter h2 { font-size: 39px; }
  .chapter .intro { font-size: 18px; }
  blockquote { margin-top: 55px; padding: 32px 24px; }
  blockquote p { font-size: 25px; }
  .principles { padding: 28px 22px; }
  .miss-card { padding: 25px; }
  .outcomes { grid-template-columns: 1fr; }
  .outcomes > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .outcomes > div { min-height: 150px; }
  .outcome-lead { transform: none; }
  .reflection { padding: 32px 24px; }
  .case-sources { align-items: flex-start; flex-direction: column; }
  .case-footer { padding-top: 80px; }
  .case-footer > .shell > a { font-size: 47px; }
  .case-footer > .shell > a span { display: none; }
}

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