:root { color-scheme: dark; --ink: #0b0d0e; --paper: #edf0ee; --white: #f6f7f4; --muted: #a5abae; --accent: #ff7057; --line: #33383b; }
* { box-sizing: border-box; letter-spacing: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; background: var(--ink); color: var(--white); font-family: 'Segoe UI', Arial, sans-serif; -webkit-font-smoothing: antialiased; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
button, summary { cursor: pointer; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
svg { width: 19px; height: 19px; flex: 0 0 auto; stroke-width: 1.5; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; top: -60px; left: 20px; background: var(--white); color: var(--ink); padding: 12px; z-index: 100; }
.skip-link:focus { top: 12px; }
.page-header { position: fixed; z-index: 20; inset: 0 0 auto; height: 80px; display: flex; align-items: center; gap: 40px; padding: 0 5%; background: rgba(11,13,14,.74); backdrop-filter: blur(16px); transition: background .25s, color .25s; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 650; flex-shrink: 0; }
.brand img { object-fit: contain; }
.page-header nav { display: flex; justify-content: flex-end; margin-left: auto; gap: 34px; font-size: 14px; }
.page-header nav a, .portal-link { transition: color .2s; }
.page-header a:hover { color: var(--accent); }
.portal-link { display: flex; align-items: center; gap: 10px; font-size: 14px; border-left: 1px solid var(--line); padding-left: 30px; }
.nav-toggle { display: none; width: 36px; height: 36px; padding: 0; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--white); }
.nav-toggle svg { width: 18px; height: 18px; }
.evolution-story { height: auto; }
.hero { position: relative; height: 100svh; min-height: 700px; overflow: hidden; isolation: isolate; background: var(--ink); }
.scene { position: absolute; inset: 335px 0 205px; z-index: -1; }
.scene canvas { position: relative; z-index: 0; display: block; width: 100%; height: 100%; }
.scene-plates { position: absolute; z-index: 1; inset: 0; overflow: hidden; visibility: hidden; pointer-events: none; }
.scene-plates img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; opacity: 0; transform-origin: 50% 55%; }
.scene.is-ready .scene-plates { visibility: visible; }
.scene-fallback { position: absolute; width: 100%; height: 100%; object-fit: contain; }
.scene.is-ready .scene-fallback { visibility: hidden; }
.hero-copy { position: absolute; top: 105px; left: 5%; pointer-events: none; }
.eyebrow { display: flex; align-items: center; gap: 10px; font-size: 11px; font-weight: 600; margin: 0 0 22px; text-transform: uppercase; }
.hero-copy .eyebrow { color: var(--muted); }
.accent-rule { width: 22px; height: 2px; background: var(--accent); }
.hero h1 { font-size: 116px; font-weight: 450; line-height: 1; margin: 0 0 15px; }
.hero-lead { font-size: 25px; line-height: 1.3; margin: 0 0 26px; font-weight: 350; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 25px; pointer-events: auto; padding: 14px 18px; background: var(--white); border-radius: 3px; color: var(--ink); font-size: 13px; transition: background .2s, transform .2s; }
.primary-link svg { color: #d94f38; }
.primary-link:hover { background: #fff; transform: translateY(-2px); }
.study-label { position: absolute; top: 115px; right: 5%; display: grid; gap: 6px; text-align: right; font-size: 10px; color: var(--muted); }
.study-label span:first-child { text-transform: uppercase; color: var(--white); }
.hero-bottom { position: absolute; bottom: 77px; left: 5%; right: 5%; }
.phase-heading { display: flex; align-items: center; gap: 26px; min-height: 56px; margin-bottom: 20px; }
.phase-heading > div { flex: 0 0 270px; }
.phase-eyebrow { font-size: 10px; color: var(--accent); }
.phase-heading h2 { font-size: 19px; font-weight: 450; margin: 5px 0 0; }
.phase-heading p { color: var(--muted); font-size: 12px; line-height: 1.6; max-width: 53ch; margin: 0; }
.icon-button { position: relative; width: 35px; height: 35px; padding: 7px; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--white); margin-left: auto; flex: 0 0 35px; }
.icon-button::after { content: attr(data-tooltip); position: absolute; right: 0; bottom: 44px; white-space: nowrap; background: #262a2c; color: var(--white); font-size: 11px; padding: 7px 9px; border-radius: 3px; opacity: 0; pointer-events: none; }
.icon-button:hover::after, .icon-button:focus-visible::after { opacity: 1; }
.stage-rail { display: grid; grid-template-columns: repeat(9, minmax(0,1fr)); gap: 0; }
.stage-button { position: relative; color: var(--muted); background: none; border: 0; padding: 6px 8px 22px 0; min-height: 53px; text-align: left; display: flex; align-items: flex-start; gap: 7px; font-size: 11px; line-height: 1.3; transition: color .2s; }
.stage-button::after { content: ''; position: absolute; left: 0; right: 0; bottom: 4px; height: 1px; background: var(--line); }
.stage-button:last-child::after { right: 0; }
.rail-mark { position: absolute; bottom: 0; left: 0; width: 9px; height: 9px; border-radius: 50%; border: 1px solid #646d71; background: var(--ink); z-index: 1; }
.stage-button.is-active, .stage-button:hover { color: var(--accent); }
.stage-button.is-active .rail-mark { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 3px var(--ink), 0 0 0 4px var(--accent); }
.stage-button.is-past::after { background: var(--accent); }
.rail-number { font-variant-numeric: tabular-nums; }
.next-chapter { position: absolute; bottom: 0; left: 0; right: 0; height: 50px; padding: 0 5%; background: var(--paper); color: var(--ink); display: flex; justify-content: space-between; align-items: center; font-size: 12px; }
.light-section { background: var(--paper); color: #202727; }
.section-inner { width: min(1240px,90%); margin: 0 auto; }
.approach { padding: 90px 0 86px; }
.approach .eyebrow, .process .eyebrow { color: #566b69; }
.approach-heading, .section-heading { display: grid; grid-template-columns: 1.3fr 1fr; gap: 70px; align-items: end; }
.approach h2, .process h2 { font-size: 52px; font-weight: 450; line-height: 1.1; margin: 0; }
.approach-heading > p, .section-heading > p { max-width: 42ch; font-size: 17px; line-height: 1.7; margin: 0; color: #53615f; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-top: 64px; }
.principles article { border-top: 1px solid #b6c3bd; padding-top: 23px; }
.principles article > span { color: #607a72; font-size: 11px; }
.principles h3 { font-size: 21px; font-weight: 500; margin: 25px 0 12px; }
.principles p { color: #53615f; line-height: 1.75; font-size: 14px; max-width: 35ch; margin: 0; }
.product-detail { position: relative; height: 540px; overflow: hidden; background: #101111; }
.product-detail img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.detail-caption { position: absolute; left: 5%; right: 5%; bottom: 30px; display: flex; justify-content: space-between; gap: 30px; font-size: 12px; color: var(--white); }
.detail-caption span:last-child { color: #c1c5c2; font-size: 10px; }
.process { padding: 95px 0; }
.workflow-list { margin-top: 60px; border-bottom: 1px solid #bcc6c0; }
.workflow-step { border-top: 1px solid #bcc6c0; }
.workflow-step > summary { display: flex; align-items: center; gap: 28px; padding: 25px 0; list-style: none; }
.workflow-step > summary::-webkit-details-marker { display: none; }
.step-number { flex: 0 0 36px; font-size: 13px; color: #687f76; }
.workflow-step h3 { font-size: 24px; line-height: 1.35; font-weight: 450; margin: 0; flex: 1; min-width: 0; }
.step-count { color: #607369; font-size: 12px; }
.workflow-step summary svg { transition: transform .2s; }
.workflow-step[open] summary svg { transform: rotate(45deg); }
.step-content { padding: 0 35px 28px 64px; max-width: 920px; }
.step-content > p { color: #53615f; font-size: 16px; line-height: 1.7; margin: 0 0 23px; }
.step-content ol { list-style: none; padding: 0; margin: 0; }
.step-content li { display: grid; grid-template-columns: 35px minmax(0,1fr); gap: 14px; margin-bottom: 20px; }
.step-content li > span { color: #6a8177; font-size: 12px; padding-top: 2px; }
.step-content h4 { font-size: 15px; font-weight: 600; margin: 0 0 6px; }
.step-content li p { font-size: 14px; line-height: 1.65; color: #53615f; margin: 0; }
.text-link { display: inline-flex; gap: 24px; align-items: center; padding-bottom: 8px; border-bottom: 1px solid #768c81; margin-top: 35px; font-size: 13px; }
.contact { padding: 100px 0 50px; }
.contact .eyebrow { color: var(--accent); }
.contact h2 { font-size: 66px; line-height: 1.08; font-weight: 400; margin: 0 0 36px; }
.contact-email { display: inline-flex; align-items: center; gap: 30px; font-size: 25px; padding-bottom: 12px; border-bottom: 1px solid #66716e; }
.contact-email svg { color: var(--accent); width: 26px; height: 26px; }
.contact-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 70px; color: var(--muted); font-size: 13px; }
.contact-bottom a { display: flex; align-items: center; gap: 12px; color: var(--white); }
footer { width: 90%; margin: 0 auto; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 25px; padding: 25px 0; }
footer > span { font-size: 10px; color: var(--muted); }
footer > span:last-child { margin-left: auto; }
@media(min-width:1700px) { .hero h1 { font-size: 140px; } .hero-copy { top: 125px; } .scene { top: 375px; } }
@media(max-width:1100px) { .rail-title { display: none; } .stage-button { font-size: 13px; min-height: 44px; } .hero h1 { font-size: 98px; } .phase-heading > div { flex-basis: 245px; } .hero-lead { font-size: 22px; } }
@media(max-width:760px) {
  .page-header { height: 68px; gap: 15px; }
  .nav-toggle { display: grid; margin-left: auto; }
  .page-header nav { position: fixed; top: 68px; left: 0; right: 0; display: grid; gap: 0; margin: 0; padding: 10px 5% 20px; visibility: hidden; opacity: 0; pointer-events: none; transform: translateY(-12px); background: rgba(11,13,14,.97); border-bottom: 1px solid var(--line); transition: opacity .2s, transform .2s, visibility .2s; }
  .page-header nav.is-open { visibility: visible; opacity: 1; pointer-events: auto; transform: translateY(0); }
  .page-header nav a { padding: 13px 0; border-bottom: 1px solid #252a2c; }
  .portal-link { border: 0; padding: 0; font-size: 12px; }
  .brand { font-size: 15px; }
  .hero { min-height: 640px; }
  .hero-copy { top: 90px; }
  .hero h1 { font-size: 78px; margin-bottom: 13px; }
  .hero-copy .eyebrow { font-size: 9px; margin-bottom: 16px; }
  .hero-lead { font-size: 22px; margin-bottom: 21px; }
  .primary-link { padding: 12px 15px; font-size: 12px; }
  .study-label { top: auto; bottom: 232px; font-size: 8px; }
  .study-label span:last-child { display: none; }
  .scene { top: 282px; bottom: 205px; }
  .hero-bottom { bottom: 66px; }
  .phase-heading { gap: 12px; flex-wrap: wrap; margin-bottom: 13px; min-height: 66px; }
  .phase-heading > div { flex: 1; }
  .phase-heading h2 { font-size: 16px; margin-top: 4px; }
  .phase-heading p { flex: 0 0 100%; font-size: 11px; max-width: none; order: 3; min-height: 36px; }
  .phase-eyebrow { font-size: 9px; }
  .icon-button { width: 32px; height: 32px; flex-basis: 32px; padding: 6px; }
  .stage-button { padding-top: 5px; min-height: 42px; font-size: 11px; }
  .next-chapter { height: 43px; font-size: 10px; }
  .approach, .process { padding: 60px 0; }
  .approach-heading, .section-heading { grid-template-columns: 1fr; gap: 25px; }
  .approach h2, .process h2 { font-size: 36px; }
  .approach-heading > p, .section-heading > p { font-size: 15px; }
  .principles { grid-template-columns: 1fr; gap: 30px; margin-top: 40px; }
  .principles h3 { margin-top: 13px; font-size: 20px; }
  .principles p { max-width: 48ch; }
  .product-detail { height: 330px; }
  .product-detail img { object-fit: contain; object-position: center; }
  .detail-caption { bottom: 18px; font-size: 12px; }
  .detail-caption span:last-child { display: none; }
  .workflow-list { margin-top: 35px; }
  .workflow-step > summary { gap: 13px; padding: 21px 0; }
  .step-number { flex-basis: 24px; font-size: 11px; }
  .workflow-step h3 { font-size: 18px; }
  .step-count { display: none; }
  .step-content { padding: 0 0 22px; }
  .step-content > p { font-size: 14px; }
  .contact { padding: 65px 0 35px; }
  .contact h2 { font-size: 39px; }
  .contact-email { font-size: 22px; gap: 20px; }
  .contact-bottom { padding-top: 45px; flex-direction: column; gap: 15px; }
  footer { flex-wrap: wrap; gap: 16px; }
  footer > span:nth-child(2) { flex-basis: 100%; order: 3; }
}
@media(max-width:380px) { .page-header { gap: 10px; } .portal-link { gap: 5px; } .hero h1 { font-size: 68px; } .hero { min-height: 670px; } .hero-lead { font-size: 20px; } .contact h2 { font-size: 34px; } }
@media(max-height:750px) and (min-width:761px) { .hero-copy { top: 92px; } .hero h1 { font-size: 84px; } .hero-lead { font-size: 21px; } .hero-copy .eyebrow { margin-bottom: 12px; } .scene { top: 285px; bottom: 185px; } .hero-bottom { bottom: 67px; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; } }
.scene-fallback-message { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 12px; }
.scene-fallback-message[hidden] { display: none; }
.scene-notes, .scene-leaders { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.scene-leaders { z-index: 1; overflow: visible; }
.scene-leaders path { fill: none; stroke: #76958c; stroke-width: .8; opacity: .82; }
.scene-leaders circle { fill: #9ab9ae; }
.scene-notes { z-index: 2; }
.scene-note { position: absolute; width: 150px; padding-top: 6px; border-top: 1px solid #617f76; color: #b5cbc2; font: italic 12px/1.45 'Segoe Print', 'Comic Sans MS', cursive; transition: opacity .15s linear; }
.thought-layer { position: absolute; inset: 0; z-index: 2; overflow: hidden; pointer-events: none; }
.thought-note { position: absolute; max-width: 210px; color: #d7d0bf; font: italic 15px/1.25 'Segoe Print', 'Bradley Hand', 'Comic Sans MS', cursive; letter-spacing: 0; text-shadow: 0 0 18px rgba(215,208,191,.12); transform-origin: center; will-change: left, top, opacity, transform; }
.thought-note::after { content: ''; display: block; width: 72%; height: 1px; margin-top: 3px; background: #8e9e96; opacity: .45; transform: rotate(calc(var(--tilt) * -.35)); transform-origin: left; }
.thought-note:nth-child(3n)::before { content: '\00d7'; position: absolute; left: -15px; top: -5px; color: #ef755e; font-size: 12px; opacity: .75; }
.thought-note--objective { transform: rotate(var(--tilt)); }
.thought-note--research { animation: thought-pulse 3.8s ease-in-out infinite; animation-delay: var(--delay); }
.thought-word { display: inline-block; white-space: nowrap; }
.thought-letter { display: inline-block; transform-origin: center; will-change: opacity, transform; }
.thought-layer[data-phase="forming"] .thought-note::before, .thought-layer[data-phase="forming"] .thought-note::after { opacity: 0; }
@keyframes thought-pulse { 0%, 100% { filter: brightness(.9); } 50% { filter: brightness(1.12); } }
.phase-heading.is-changing > div, .phase-heading.is-changing > p { animation: phase-in .42s ease both; }
@keyframes phase-in { from { opacity: 0; transform: translateX(9px); } to { opacity: 1; transform: translateX(0); } }
@media(max-width:760px) { .scene-note { width: 137px; font-size: 9px; line-height: 1.35; } .thought-note { max-width: 125px; font-size: 11px; line-height: 1.18; } }