:root {
  color-scheme: dark;
  --night: #050b14;
  --night-2: #091521;
  --night-3: #102131;
  --paper: #eff3f4;
  --paper-2: #e4ebee;
  --ink: #101820;
  --ink-soft: #3f505c;
  --white: #f1f8fc;
  --muted: #aab9c5;
  --muted-dark: #566671;
  --blue: #42c8f5;
  --blue-bright: #70dcff;
  --blue-deep: #0b6791;
  --line-dark: rgba(227, 242, 250, .18);
  --line-light: rgba(12, 28, 40, .18);
  --max-width: 1240px;
  --page-gutter: clamp(1.2rem, 5vw, 5rem);
  --focus: #8de5ff;
  font-family: "Segoe UI", Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; background: var(--night); }
body { margin: 0; min-width: 320px; background: var(--night); color: var(--white); line-height: 1.6; }
img { display: block; max-width: 100%; }
a { color: inherit; text-underline-offset: .2em; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
button:disabled, input:disabled { cursor: not-allowed; opacity: .58; }
::selection { background: rgba(66, 200, 245, .34); color: #fff; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }

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

.content-shell { width: min(var(--max-width), calc(100% - var(--page-gutter) * 2)); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 300;
  transform: translateY(-150%);
  padding: .7rem 1rem;
  color: var(--ink);
  background: var(--white);
  border-radius: .3rem;
}
.skip-link:focus { transform: translateY(0); }

.reading-progress { position: fixed; z-index: 200; inset: 0 0 auto; height: 2px; background: transparent; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--blue); box-shadow: 0 0 12px rgba(66, 200, 245, .9); transform-origin: left; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 82px;
  padding: .9rem var(--page-gutter);
  background: linear-gradient(180deg, rgba(5, 11, 20, .92), rgba(5, 11, 20, .52) 72%, transparent);
  border-bottom: 1px solid rgba(220, 240, 250, .06);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  aspect-ratio: 1;
  border: 1px solid rgba(112, 220, 255, .68);
  border-radius: 50%;
  color: var(--blue-bright);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.brand-name { display: grid; color: var(--white); font-size: .94rem; font-weight: 650; letter-spacing: .02em; line-height: 1.2; }
.brand-name small { margin-top: .22rem; color: #afc0cc; font-size: .65rem; font-weight: 450; letter-spacing: .08em; text-transform: uppercase; }
.site-nav { display: flex; align-items: center; gap: clamp(.9rem, 2vw, 1.9rem); }
.site-nav a { color: #d3e1e9; font-size: .78rem; text-decoration: none; transition: color .2s ease; }
.site-nav a:hover, .site-nav a[aria-current="location"] { color: var(--blue-bright); }
.site-nav .nav-contact { padding: .58rem .9rem; border: 1px solid rgba(112, 220, 255, .46); border-radius: 99px; }
.menu-toggle { display: none; color: var(--white); background: transparent; border: 1px solid var(--line-dark); border-radius: 999px; padding: .55rem .85rem; }

.world-story { position: relative; overflow: clip; background: var(--night); }
.story-track { position: relative; height: 270vh; }
.story-stage {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 620px;
  overflow: hidden;
  isolation: isolate;
  background: radial-gradient(ellipse at 57% 55%, #10243b 0, #07111e 45%, #03070d 78%);
}
.space-shade {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(4, 9, 16, .98) 0%, rgba(4, 9, 16, .91) 29%, rgba(4, 9, 16, .50) 52%, rgba(4, 9, 16, .08) 84%),
    linear-gradient(0deg, rgba(4, 9, 16, .77), transparent 30%, transparent 74%, rgba(4, 9, 16, .14));
  transition: opacity .2s linear;
  opacity: calc(1 - var(--story-progress, 0) * .5);
}
.world-visual {
  position: absolute;
  z-index: 4;
  top: 53%;
  left: 57%;
  width: min(132vw, 1900px);
  aspect-ratio: 16 / 9;
  margin: 0;
  transform: translate(-50%, -50%) scale(var(--earth-scale, .72));
  transform-origin: center;
  will-change: transform;
  pointer-events: none;
}
.world-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; mix-blend-mode: screen; }
.world-distant { opacity: calc(1 - var(--detail-opacity, 0)); }
.world-detail { opacity: var(--detail-opacity, 0); }
.orbit-copy { position: absolute; z-index: 5; inset: 0; pointer-events: none; }
.orbit-line {
  position: absolute;
  top: 51%;
  left: 50%;
  width: min(88vw, 1160px);
  margin: 0;
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 5rem);
  font-weight: 700;
  letter-spacing: -.06em;
  line-height: .98;
  text-align: center;
  transform: translate(-50%, -44%) translateY(20px);
  opacity: 0;
  text-shadow: 0 3px 10px rgba(0, 0, 0, .98), 0 0 24px rgba(0, 0, 0, .9), 0 0 34px rgba(42, 195, 255, .55), 0 0 56px rgba(42, 195, 255, .28);
  -webkit-text-stroke: .6px rgba(2, 10, 18, .96);
  paint-order: stroke fill;
  transition: opacity .14s ease, transform .55s cubic-bezier(.2,.7,.2,1);
  text-wrap: balance;
}
.orbit-line.is-active { transform: translate(-50%, -50%) translateY(0); opacity: 1; }
.hero-copy {
  position: absolute;
  z-index: 6;
  top: 50%;
  left: var(--page-gutter);
  width: min(610px, 52vw);
  transform: translateY(-42%);
  opacity: var(--hero-copy-opacity, 1);
  transition: opacity .15s linear;
}
.eyebrow { margin: 0 0 1rem; color: var(--blue-bright); font-size: .7rem; font-weight: 700; letter-spacing: .17em; line-height: 1.5; text-transform: uppercase; }
.hero-copy h1 {
  max-width: 11.5ch;
  margin: 0;
  font-size: clamp(3rem, 6vw, 6.2rem);
  font-weight: 620;
  letter-spacing: -.065em;
  line-height: .99;
  text-wrap: balance;
}
.hero-copy h1 span { color: var(--blue-bright); }
.hero-summary { max-width: 48ch; margin: 1.45rem 0 1.8rem; color: #d1dde5; font-size: clamp(1rem, 1.2vw, 1.13rem); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .85rem 1.2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .72rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .81rem;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease;
}
.button:hover:not(:disabled) { transform: translateY(-2px); }
.button-primary { color: #031019; background: var(--blue-bright); }
.button-primary:hover:not(:disabled) { background: #a2ecff; }
.button-quiet { color: var(--white); background: rgba(8, 19, 30, .42); border-color: rgba(232, 247, 255, .34); }
.button-quiet:hover { border-color: var(--blue-bright); background: rgba(12, 37, 54, .72); }
.button-light { color: #061019; background: var(--white); }
.button-light:hover { background: #dcecf4; }
.hero-proof { margin: 1.2rem 0 0; color: #b7c7d1; font-size: .72rem; letter-spacing: .02em; }
.visual-note { position: absolute; z-index: 7; right: var(--page-gutter); bottom: 3.2rem; max-width: 260px; margin: 0; color: #a9bdca; font-size: .67rem; text-align: right; }
.scroll-cue { position: absolute; z-index: 8; left: var(--page-gutter); bottom: 2rem; display: flex; align-items: center; gap: .75rem; color: #d0e3ed; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; }
.scroll-cue i { position: relative; display: block; width: 56px; height: 1px; overflow: hidden; background: rgba(209, 227, 237, .4); }
.scroll-cue i::after { position: absolute; inset: 0 auto 0 -45%; width: 45%; background: var(--blue-bright); content: ""; animation: cue 2.2s ease-in-out infinite; }
@keyframes cue { 55%, 100% { transform: translateX(320%); } }
.story-progress { position: absolute; z-index: 10; inset: auto 0 0; height: 2px; background: rgba(215, 241, 251, .12); }
.story-progress span { display: block; width: 100%; height: 100%; background: var(--blue); box-shadow: 0 0 15px rgba(66, 200, 245, .8); transform: scaleX(var(--story-progress, 0)); transform-origin: left; }
.story-summary { padding-block: clamp(3.5rem, 8vw, 7rem); color: var(--ink); }
.eyebrow-dark { color: #086d91; }
.story-summary h2 { max-width: 16ch; margin: 0 0 1rem; font-size: clamp(2.1rem, 4.5vw, 4.5rem); letter-spacing: -.055em; line-height: 1.02; }
.story-summary > p:last-child { max-width: 68ch; margin: 0; color: var(--ink-soft); font-size: 1.02rem; }

.section { padding-block: clamp(4rem, 9vw, 8rem); }
.section-paper { color: var(--ink); background: var(--paper); }
.section-dark { color: var(--white); background: var(--night); }
.section-blue { color: var(--white); background: #0a2033; }
.section-heading { max-width: 780px; margin-bottom: clamp(2.5rem, 5vw, 4.2rem); }
.section-heading h2 { margin: 0; font-size: clamp(2.2rem, 4.4vw, 4.5rem); font-weight: 570; letter-spacing: -.055em; line-height: 1.04; text-wrap: balance; }
.section-heading > p:not(.eyebrow) { max-width: 65ch; color: var(--ink-soft); }
.section-heading-wide { max-width: 880px; }
.section-heading .section-intro, .section-intro { max-width: 68ch; margin: 1.3rem 0 0; color: var(--muted); font-size: 1rem; }
.section-paper .section-intro { color: var(--ink-soft); }
.lead { color: var(--ink); font-size: clamp(1.18rem, 1.65vw, 1.55rem); line-height: 1.45; }
.text-link { display: inline-flex; align-items: baseline; gap: .35rem; margin-top: .8rem; color: #075f84; font-size: .9rem; font-weight: 700; text-decoration-thickness: 1px; }
.text-link:hover { color: #043d57; }
.text-link-light { color: var(--blue-bright); }
.text-link-light:hover { color: #b5f0ff; }
.external-note { font-size: .75em; font-weight: 500; }

.perspective-layout { display: grid; grid-template-columns: 1.05fr .8fr; gap: clamp(2rem, 8vw, 8rem); align-items: start; }
.perspective-layout .section-heading { margin: 0; }
.perspective-layout .section-heading h2 { font-size: clamp(2.3rem, 4.1vw, 4rem); }
.perspective-copy { max-width: 560px; padding-top: 2rem; color: var(--ink-soft); }
.perspective-copy p { margin-top: 0; }
.need-sequence { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(270px, .74fr); gap: clamp(2rem, 7vw, 7rem); align-items: center; margin-top: clamp(4rem, 9vw, 8rem); }
.need-sequence-reverse { grid-template-columns: minmax(270px, .74fr) minmax(0, 1.04fr); }
.need-sequence-reverse .need-image { order: 2; }
.need-image { position: relative; margin: 0; overflow: hidden; background: #d9e1e4; }
.need-image img { width: 100%; aspect-ratio: 1.48; object-fit: cover; filter: saturate(.72); transition: transform .8s cubic-bezier(.2,.7,.2,1), filter .5s ease; }
.need-image:hover img { transform: scale(1.025); filter: saturate(.96); }
.need-image figcaption { position: absolute; right: .5rem; bottom: .5rem; left: .5rem; padding: .4rem .6rem; color: #f0f5f7; background: rgba(8, 18, 24, .78); font-size: .62rem; line-height: 1.35; }
.need-image figcaption a { color: inherit; }
.need-copy { max-width: 460px; }
.step-index { color: #0b6d91; font-size: .7rem; font-weight: 750; letter-spacing: .16em; }
.need-copy h3 { margin: .8rem 0 .6rem; font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 570; letter-spacing: -.05em; line-height: 1.08; }
.need-copy p { margin: 0; color: var(--ink-soft); }

.proof-section { padding-block: clamp(4.5rem, 10vw, 9rem); }
.proof-numbers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; margin-block: clamp(3rem, 5vw, 4.5rem) 1rem; }
.proof-number { min-height: 190px; padding: 1.1rem 1.2rem 1.2rem 0; border-top: 1px solid var(--line-dark); }
.proof-number strong { display: block; color: var(--blue-bright); font-size: clamp(3rem, 5.8vw, 5.7rem); font-weight: 500; letter-spacing: -.07em; line-height: 1; }
.proof-number strong span { color: var(--white); font-size: .46em; vertical-align: top; }
.proof-number p { max-width: 19ch; margin: .9rem 0 0; color: #d0dce4; font-size: .88rem; line-height: 1.4; }
.proof-disclosure { max-width: 80ch; margin: 0 0 clamp(2.5rem, 5vw, 4rem); color: var(--muted); font-size: .72rem; }
.case-list { border-top: 1px solid var(--line-dark); }
.case-item { border-bottom: 1px solid var(--line-dark); }
.case-item summary { display: grid; grid-template-columns: 3.5rem minmax(0, 1fr) auto; gap: 1rem; align-items: center; min-height: 116px; padding: 1.2rem 0; list-style: none; cursor: pointer; }
.case-item summary::-webkit-details-marker { display: none; }
.case-number { align-self: start; padding-top: .4rem; color: var(--blue); font-size: .76rem; font-weight: 700; }
.case-title { display: grid; gap: .25rem; }
.case-title small { color: var(--muted); font-size: .69rem; letter-spacing: .06em; text-transform: uppercase; }
.case-title strong { font-size: clamp(1.25rem, 2.4vw, 2.25rem); font-weight: 500; letter-spacing: -.035em; line-height: 1.14; }
.case-open { color: var(--blue-bright); font-size: .72rem; }
.case-item[open] .case-open { color: #c9d5de; }
.case-body { padding: 0 0 2rem 4.5rem; }
.case-body dl { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem 2.5rem; margin: 0; }
.case-body dl > div { padding-top: .65rem; border-top: 1px solid rgba(227, 242, 250, .12); }
.case-body dt { margin-bottom: .3rem; color: var(--blue-bright); font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.case-body dd { margin: 0; color: #d2dde5; font-size: .88rem; }
.case-note { margin: 1.2rem 0 0; color: var(--muted); font-size: .72rem; }

.capability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(2rem, 5vw, 5rem); border-top: 1px solid var(--line-light); }
.capability { min-height: 285px; padding: 1.35rem 0 1.8rem; border-bottom: 1px solid var(--line-light); }
.capability-status { display: inline-block; margin-bottom: .75rem; color: #07668a; font-size: .67rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.capability h3 { max-width: 20ch; margin: 0; font-size: clamp(1.45rem, 2.4vw, 2.25rem); font-weight: 590; letter-spacing: -.045em; line-height: 1.15; }
.capability p { max-width: 58ch; margin: .8rem 0 0; color: var(--ink-soft); font-size: .92rem; }
.capability .capability-output { color: #253a47; font-size: .8rem; }
.capability-emerging { background: linear-gradient(135deg, rgba(66, 200, 245, .13), transparent 80%); }
.capability-emerging .capability-status { color: #075a84; }

.method-section { padding-block: clamp(4.5rem, 10vw, 9rem); }
.method-section .section-heading { max-width: 760px; }
.method-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; margin: 0; padding: 0; list-style: none; counter-reset: method; }
.method-steps li { min-height: 230px; padding: 1rem 1rem 1.1rem 0; border-top: 1px solid rgba(229, 243, 250, .35); }
.method-steps li span { color: var(--blue-bright); font-size: .7rem; font-weight: 700; letter-spacing: .1em; }
.method-steps h3 { margin: 1.6rem 0 .45rem; font-size: clamp(1.2rem, 1.8vw, 1.65rem); font-weight: 560; }
.method-steps p { max-width: 21ch; margin: 0; color: #c4d4de; font-size: .8rem; }

.lab-section { padding-block: clamp(4.5rem, 10vw, 9rem); }
.concept-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 1.5rem; border-top: 1px solid var(--line-dark); }
.concept-card { min-height: 270px; padding: 1.35rem 1rem 1.4rem 0; border-bottom: 1px solid var(--line-dark); }
.concept-tag { display: inline-block; margin-bottom: .9rem; color: var(--blue-bright); font-size: .66rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.concept-card h3 { margin: 0; font-size: clamp(1.25rem, 1.9vw, 1.75rem); font-weight: 560; letter-spacing: -.035em; line-height: 1.15; }
.concept-card p { margin: .8rem 0; color: #d2dce4; font-size: .87rem; }
.concept-card small { display: block; color: var(--muted); font-size: .72rem; line-height: 1.5; }
.concept-disclosure { margin: 1.8rem 0 0; color: var(--muted); font-size: .74rem; }

.demo-section { border-top: 1px solid var(--line-light); }
.demo-layout { display: grid; grid-template-columns: .8fr 1fr; gap: clamp(2.5rem, 7vw, 7rem); align-items: start; }
.demo-intro { max-width: 520px; }
.demo-intro h2 { margin: 0; font-size: clamp(2.1rem, 4.2vw, 4.2rem); font-weight: 590; letter-spacing: -.06em; line-height: 1.03; }
.demo-intro > p:not(.eyebrow) { color: var(--ink-soft); }
.demo-intro .privacy-line { margin-top: 1.5rem; color: #365160; font-size: .76rem; }
.demo-panel { padding: clamp(1.25rem, 3vw, 2.2rem); background: #fff; border: 1px solid rgba(14, 33, 46, .14); box-shadow: 0 25px 80px rgba(10, 26, 38, .08); }
.field { display: grid; gap: .35rem; margin-bottom: 1.1rem; }
.field label, .newsletter-form label, .contact-result label { color: #14232c; font-size: .77rem; font-weight: 700; }
.field input, .field textarea, .field select, .newsletter-controls input, .contact-result textarea {
  width: 100%;
  min-height: 46px;
  padding: .7rem .75rem;
  color: #12202a;
  background: #f7f9fa;
  border: 1px solid rgba(14, 33, 46, .25);
  border-radius: .2rem;
}
.field textarea, .contact-result textarea { min-height: 94px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: 3px solid rgba(11, 103, 145, .22); border-color: #0876a0; }
.field [aria-invalid="true"] { border-color: #a83131; }
.field-error { min-height: 1em; color: #9d2929; font-size: .72rem; }
.demo-panel .button { margin-top: .25rem; }
.demo-status { min-height: 1.3em; margin: .6rem 0 0; color: #31515e; font-size: .76rem; }
.brief-result { margin-top: 1.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line-light); }
.brief-result h3 { margin: 1rem 0 .15rem; color: #12202a; font-size: .82rem; }
.brief-result p:not(.eyebrow) { margin: 0; color: #425660; font-size: .87rem; }
.brief-result .eyebrow { margin-bottom: .7rem; font-size: .62rem; }
.text-button { padding: .3rem 0; color: #075f84; background: none; border: 0; font-size: .78rem; font-weight: 750; text-decoration: underline; text-underline-offset: .2em; }
.text-button:hover { color: #043d57; }

.notes-section { border-top: 1px solid var(--line-light); }
.notes-layout { display: grid; grid-template-columns: .9fr 1fr; gap: 2rem clamp(2.5rem, 7vw, 7rem); align-items: start; }
.notes-layout .section-heading { margin: 0; }
.notes-layout .section-heading h2 { font-size: clamp(2rem, 3.5vw, 3.55rem); }
.notes-layout .section-intro { font-size: .9rem; }
.note-topics { border-top: 1px solid var(--line-light); }
.note-topics > div { display: grid; grid-template-columns: 2.2rem 1fr auto; gap: 1rem; align-items: center; min-height: 74px; border-bottom: 1px solid var(--line-light); }
.note-topics span { color: #0c759b; font-size: .69rem; font-weight: 750; }
.note-topics p { margin: .6rem 0; font-size: .88rem; font-weight: 600; }
.note-topics small { color: var(--muted-dark); font-size: .65rem; white-space: nowrap; }
.newsletter-form { grid-column: 1 / -1; display: grid; grid-template-columns: .8fr 1fr; gap: 2rem; align-items: start; padding: 1.5rem 0 0; border-top: 1px solid var(--line-light); }
.newsletter-form > div:first-child p { max-width: 47ch; color: var(--ink-soft); font-size: .82rem; }
.newsletter-form > div:first-child .newsletter-title { margin: 0; color: var(--ink); font-size: .95rem; font-weight: 750; }
.newsletter-controls { display: grid; grid-template-columns: 1fr 1fr auto; gap: .55rem; align-items: center; }
.newsletter-controls input { min-height: 44px; font-size: .8rem; }
.newsletter-controls .button { min-height: 44px; white-space: nowrap; }
.newsletter-consent { grid-column: 1 / -1; display: flex; gap: .65rem; align-items: flex-start; color: #4f626d; font-size: .72rem; }
.newsletter-consent input { width: 1rem; height: 1rem; flex: 0 0 auto; margin: .1rem 0 0; accent-color: #0876a0; }
.newsletter-consent label { color: inherit; font-size: inherit; font-weight: 500; line-height: 1.5; }
.newsletter-status, .newsletter-form .privacy-line { grid-column: 1 / -1; margin: .2rem 0 0; color: #4f626d; font-size: .72rem; }
.newsletter-form .privacy-line { margin-top: -.85rem; }

.about-section { padding-block: clamp(4.5rem, 10vw, 9rem); }
.about-layout { display: grid; grid-template-columns: .95fr 1fr; gap: clamp(2.5rem, 8vw, 8rem); align-items: start; }
.about-layout .section-heading { position: sticky; top: 7rem; }
.about-layout .section-heading h2 { font-size: clamp(2.1rem, 4.3vw, 4.25rem); }
.about-copy { max-width: 620px; color: #d1dce4; }
.about-copy .lead { color: var(--white); }
.education-list { margin-top: 2rem; border-top: 1px solid var(--line-dark); }
.education-list > div { padding: .8rem 0; border-bottom: 1px solid var(--line-dark); }
.education-list small { color: var(--blue-bright); font-size: .63rem; font-weight: 700; letter-spacing: .13em; }
.education-list p { margin: .2rem 0 0; color: #e0e8ed; font-size: .85rem; }
.about-links { margin-top: 1.6rem; }

.contact-section { padding-block: clamp(4.5rem, 10vw, 9rem); color: var(--white); background: linear-gradient(135deg, #0b2740, #081622 62%, #050b14); }
.contact-layout { display: grid; grid-template-columns: .9fr 1fr; gap: clamp(2.5rem, 7vw, 7rem); align-items: start; }
.contact-copy { max-width: 550px; }
.contact-copy h2 { margin: 0; font-size: clamp(2.3rem, 4.7vw, 4.7rem); font-weight: 560; letter-spacing: -.065em; line-height: 1.02; }
.contact-copy > p:not(.eyebrow) { color: #cedce5; }
.contact-copy .non-commercial-note { margin-top: 1.5rem; padding-left: .9rem; border-left: 2px solid var(--blue); color: #deebf2; font-size: .81rem; }
.contact-email { display: block; margin-top: 2rem; color: var(--blue-bright); font-size: clamp(1rem, 1.7vw, 1.4rem); font-weight: 700; text-decoration-thickness: 1px; }
.contact-copy .text-link { color: var(--blue-bright); }
.contact-form-wrap { padding: clamp(1.25rem, 3vw, 2.2rem); color: var(--ink); background: var(--paper); }
.contact-form-wrap h3 { margin: 0; font-size: 1.45rem; letter-spacing: -.035em; }
.form-explainer { color: #4c5e68; font-size: .75rem; }
.contact-form-wrap .field { margin-bottom: .9rem; }
.optional-note { color: #596d77; font-size: .9em; font-weight: 500; }
.field-split { grid-template-columns: 1fr 1fr; gap: .8rem; }
.field-split .field { min-width: 0; }
.contact-form-wrap .button { margin-top: .1rem; }
.form-status { min-height: 1.5em; margin: .6rem 0 0; color: #264655; font-size: .75rem; }
.contact-result { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line-light); }
.contact-result textarea { margin-top: .4rem; background: #fff; font-size: .78rem; }
.draft-actions { display: flex; gap: 1.2rem; align-items: center; }
.contact-result .text-button { color: #075f84; }
.contact-result .form-explainer { margin-bottom: 0; }
.site-footer { padding-block: 2.5rem 2rem; color: #ced9e1; background: #03080e; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-bottom: 1.7rem; }
.footer-top > p { color: #edf6fb; font-size: .9rem; }
.brand-footer .brand-name { font-size: .88rem; }
.back-top { color: var(--blue-bright); font-size: .75rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1rem; border-top: 1px solid rgba(227, 242, 250, .14); color: #a6b5c0; font-size: .68rem; }
.footer-bottom p { margin: 0; }
.privacy-note { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1rem; color: #95a6b2; font-size: .66rem; }
.privacy-note p { margin: 0; }

.js-enabled .reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .75s cubic-bezier(.2,.7,.2,1); }
.js-enabled .reveal.is-visible { opacity: 1; transform: none; }
.js-enabled .story-stage .hero-copy { will-change: opacity; }
[hidden] { display: none !important; }

@media (max-width: 1050px) {
  .site-nav { gap: .9rem; }
  .site-nav a { font-size: .72rem; }
  .site-header { min-height: 76px; }
  .hero-copy { width: min(550px, 55vw); }
  .hero-copy h1 { font-size: clamp(3rem, 6.5vw, 5rem); }
  .proof-numbers { grid-template-columns: repeat(2, 1fr); }
  .proof-number { min-height: 155px; }
  .newsletter-controls { grid-template-columns: 1fr 1fr; }
  .newsletter-controls button, .newsletter-status { grid-column: 1 / -1; justify-self: start; }
}
@media (max-width: 800px) {
  :root { --page-gutter: clamp(1.15rem, 5vw, 2.5rem); }
  html:not(.js-enabled) { scroll-padding-top: 10rem; }
  .site-header { min-height: 72px; flex-wrap: wrap; }
  .menu-toggle { display: none; }
  .site-nav {
    position: static;
    display: flex;
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: .2rem .8rem;
    padding: .35rem 0;
  }
  .site-nav a { padding: .35rem .25rem; font-size: .78rem; }
  .site-nav .nav-contact { margin: 0; padding: .35rem .25rem; border: 0; border-radius: 0; }
  .js-enabled .site-header { flex-wrap: nowrap; }
  .js-enabled .menu-toggle { display: inline-flex; }
  .js-enabled .site-nav {
    position: absolute;
    top: calc(100% - .2rem);
    right: var(--page-gutter);
    left: var(--page-gutter);
    display: none;
    width: auto;
    flex-wrap: nowrap;
    flex-direction: column;
    align-items: stretch;
    justify-content: initial;
    gap: 0;
    padding: .45rem 1rem;
    background: rgba(5, 11, 20, .97);
    border: 1px solid var(--line-dark);
  }
  .js-enabled .site-header.is-menu-open .site-nav { display: flex; }
  .js-enabled .site-nav a { padding: .8rem .25rem; border-bottom: 1px solid rgba(227, 242, 250, .1); font-size: .83rem; }
  .js-enabled .site-nav .nav-contact { margin: .6rem 0; padding: .65rem .25rem; border: 0; border-bottom: 1px solid rgba(227, 242, 250, .1); border-radius: 0; }
  .story-track { height: 240vh; }
  .story-stage { min-height: 580px; }
  .world-visual { top: 55%; left: 68%; width: min(160vw, 1450px); }
  .hero-copy { top: 44%; width: min(600px, 72vw); }
  .hero-copy h1 { font-size: clamp(2.8rem, 8vw, 5rem); }
  .space-shade { background: linear-gradient(90deg, rgba(4, 9, 16, .96), rgba(4, 9, 16, .8) 43%, rgba(4, 9, 16, .1)), linear-gradient(0deg, rgba(4, 9, 16, .72), transparent 42%); }
  .orbit-line { left: 62%; width: 80vw; font-size: clamp(2.2rem, 7vw, 4.4rem); }
  .perspective-layout, .demo-layout, .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 2rem; }
  .perspective-copy { padding-top: 0; }
  .need-sequence, .need-sequence-reverse { grid-template-columns: 1fr .85fr; gap: 2rem; }
  .need-sequence-reverse .need-image { order: initial; }
  .method-steps { grid-template-columns: repeat(3, 1fr); }
  .concept-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-layout .section-heading { position: static; }
  .notes-layout { grid-template-columns: 1fr; gap: 2.4rem; }
  .newsletter-form { grid-column: auto; }
}
@media (max-width: 560px) {
  html { scroll-padding-top: 4.5rem; }
  .brand-mark { width: 34px; }
  .brand-name { font-size: .84rem; }
  .brand-name small { font-size: .56rem; }
  .story-track { height: 225vh; }
  .story-stage { min-height: 560px; }
  .world-visual { top: 49%; left: 64%; width: 190vw; }
  .hero-copy { top: 43%; width: calc(100% - var(--page-gutter) * 2); transform: translateY(-35%); }
  .hero-copy h1 { max-width: 12ch; font-size: clamp(2.65rem, 12vw, 4.1rem); }
  .hero-summary { max-width: 38ch; margin: 1.1rem 0 1.35rem; font-size: .93rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: .6rem; }
  .hero-actions .button { min-height: 44px; }
  .hero-proof { max-width: 35ch; font-size: .64rem; }
  .eyebrow { font-size: .61rem; }
  .visual-note { right: var(--page-gutter); bottom: 2.2rem; max-width: 190px; font-size: .58rem; }
  .scroll-cue { bottom: 1.2rem; font-size: .59rem; }
  .orbit-line { top: 58%; left: 58%; width: 90vw; font-size: clamp(2rem, 9vw, 3.5rem); }
  .story-summary h2 { font-size: clamp(2.3rem, 10vw, 3.5rem); }
  .need-sequence, .need-sequence-reverse { grid-template-columns: 1fr; gap: 1.4rem; margin-top: 3.5rem; }
  .need-image img { aspect-ratio: 1.25; }
  .need-copy { max-width: 46ch; }
  .proof-numbers { grid-template-columns: 1fr 1fr; gap: .55rem 1rem; }
  .proof-number { min-height: 138px; padding-right: .2rem; }
  .proof-number strong { font-size: clamp(2.75rem, 14vw, 4.3rem); }
  .proof-number p { max-width: 17ch; font-size: .75rem; }
  .case-item summary { grid-template-columns: 2rem 1fr; gap: .4rem .6rem; min-height: 100px; }
  .case-number { grid-row: 1 / span 2; }
  .case-open { grid-column: 2; font-size: .65rem; }
  .case-body { padding-left: 2.6rem; }
  .case-body dl { grid-template-columns: 1fr; gap: .8rem; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability { min-height: initial; padding-block: 1.2rem 1.5rem; }
  .method-steps { grid-template-columns: 1fr 1fr; gap: .6rem 1rem; }
  .method-steps li { min-height: 170px; }
  .method-steps h3 { margin-top: 1rem; }
  .concept-grid { grid-template-columns: 1fr; }
  .concept-card { min-height: initial; padding-block: 1.15rem 1.35rem; }
  .newsletter-form { grid-template-columns: 1fr; gap: .5rem; }
  .newsletter-controls { grid-template-columns: 1fr; }
  .newsletter-controls button, .newsletter-status { grid-column: auto; }
  .newsletter-form .privacy-line { margin-top: 0; }
  .note-topics > div { grid-template-columns: 1.8rem 1fr; gap: .5rem; padding-block: .45rem; }
  .note-topics small { grid-column: 2; margin-top: -.7rem; }
  .field-split { grid-template-columns: 1fr; gap: 0; }
  .footer-top, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-top { gap: .6rem; }
  .footer-top > p { margin: .3rem 0; }
  .privacy-note { grid-template-columns: 1fr; gap: .65rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
  }
  .js-enabled .reveal { opacity: 1; transform: none; }
  .story-track { height: auto; }
  .story-stage { position: relative; top: auto; height: auto; min-height: 850px; padding-top: 110px; }
  .world-visual { top: 58%; left: 57%; width: min(150vw, 1200px); transform: translate(-50%, -50%); }
  .world-distant { opacity: 0; }
  .world-detail { opacity: 1; }
  .hero-copy { position: relative; top: auto; left: auto; width: min(680px, calc(100% - var(--page-gutter) * 2)); margin-left: var(--page-gutter); padding-top: 5rem; transform: none; opacity: 1; }
  .orbit-copy { display: none; }
  .story-summary { padding-top: 3rem; }
}
/* Peer feedback refinements: improve the dark-story contrast and add a gentle image ripple. */
.world-detail {
  filter: brightness(1.18) contrast(1.1) saturate(1.34);
}

.story-summary {
  color: #f4f8fb;
}

.story-summary .eyebrow-dark {
  color: #38c9ff;
}

.story-summary > p:last-child {
  color: #c4d2df;
}

.need-image {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.need-image::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: 170%;
  aspect-ratio: 1;
  pointer-events: none;
  border-radius: 50%;
  opacity: 0;
  background: radial-gradient(circle,
    transparent 29%, rgba(74, 211, 255, .9) 30%, rgba(74, 211, 255, .18) 31%, transparent 33%,
    transparent 46%, rgba(74, 211, 255, .64) 47%, rgba(74, 211, 255, .12) 48%, transparent 50%,
    transparent 64%, rgba(74, 211, 255, .38) 65%, transparent 67%);
  mix-blend-mode: screen;
  transform: translate(-50%, -50%) scale(.42);
}

.need-image > figcaption {
  z-index: 2;
}

.need-image:hover::after,
.need-image.is-rippling::after {
  animation: photo-ripple 1.6s cubic-bezier(.2, .65, .35, 1) both;
}

@keyframes photo-ripple {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(.42);
  }
  20% {
    opacity: .92;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .need-image::after {
    display: none;
    animation: none !important;
  }
}