:root {
  color-scheme: dark;
  --black: #03050a;
  --black-soft: #070a12;
  --white: #f3f7ff;
  --blue: #66d9ff;
  --blue-soft: #c7eeff;
  --purple: #8f5df2;
  --purple-soft: #c8afff;
  --muted: #8d95a8;
  --line: rgba(210, 224, 255, .14);
  --font-display: "Orbitron", "Eurostile", system-ui, sans-serif;
  --font-body: "Sora", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --edge: clamp(1.25rem, 3.25vw, 3.75rem);
  --section-space: clamp(6rem, 9vw, 9rem);
  --max: 1680px;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
  background: var(--black);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { color: var(--black); background: var(--blue); }
a { color: inherit; -webkit-tap-highlight-color: transparent; }
p { text-wrap: pretty; }
h1,
h2 { text-wrap: balance; }
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .7rem 1rem;
  color: var(--black);
  background: var(--blue);
  font-family: var(--font-display);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }

/* ---------------------------------------------------------------- Header -- */

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1.1rem, 2.4vw, 1.75rem) max(var(--edge), calc((100% - var(--max)) / 2 + var(--edge)));
  pointer-events: none;
  transition: transform .55s var(--ease-out), padding .45s var(--ease-out), background-color .45s ease, box-shadow .45s ease;
}
/* Once the page moves, a dark bar: solid rather than frosted, as a blur over
   the live black hole costs slower machines their smooth scrolling. */
.site-header.is-scrolled {
  padding-block: .7rem;
  background-color: rgba(4, 6, 12, .97);
  box-shadow: 0 1px 0 rgba(199, 238, 255, .08);
}
.site-header.is-hidden { transform: translateY(-110%); }
.site-logo,
.site-nav { pointer-events: auto; }
.site-logo {
  display: inline-flex;
  border-radius: 50%;
}
.site-logo img {
  display: block;
  width: clamp(2.75rem, 3.6vw, 3.4rem);
  height: auto;
  filter: drop-shadow(0 0 1.1rem rgba(102, 217, 255, .22));
  transition: transform .9s var(--ease-out), filter .45s ease, width .45s var(--ease-out);
}
.site-header.is-scrolled .site-logo img { width: 2.5rem; }
/* The atom looks the same after a half turn, so the spin lands on itself. */
.site-logo:hover img,
.site-logo:focus-visible img {
  filter: drop-shadow(0 0 1.3rem rgba(102, 217, 255, .42));
  transform: rotate(180deg);
}

.products { position: relative; }
.products__toggle {
  display: inline-flex;
  gap: .55rem;
  align-items: center;
  min-height: 2.75rem;
  padding: .75rem 1.15rem;
  border: 1px solid rgba(199, 238, 255, .2);
  border-radius: 999px;
  color: rgba(236, 242, 252, .9);
  background: rgba(8, 12, 22, .38);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-family: var(--font-display);
  font-size: .62rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .3s ease, background-color .3s ease, color .3s ease;
}
.products__toggle:hover,
.products.is-open .products__toggle {
  border-color: rgba(102, 217, 255, .55);
  color: var(--white);
  background-color: rgba(102, 217, 255, .1);
}
.products__chevron {
  width: .75rem;
  height: .75rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .4s var(--ease-out);
}
.products.is-open .products__chevron { transform: rotate(180deg); }

.products__menu {
  position: absolute;
  top: calc(100% + .6rem);
  right: 0;
  width: min(18.5rem, calc(100vw - 2rem));
  padding: .4rem;
  border: 1px solid rgba(199, 238, 255, .14);
  border-radius: 1.15rem;
  background: rgba(9, 12, 22, .8);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 1.6rem 3.2rem rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-.45rem) scale(.98);
  transform-origin: top right;
  transition: opacity .25s ease, transform .4s var(--ease-out), visibility 0s linear .4s;
}
.products.is-open .products__menu {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity .25s ease, transform .4s var(--ease-out), visibility 0s;
}
.products__menu ul {
  display: grid;
  gap: .15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.products__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .95rem;
  align-items: center;
  padding: .8rem .9rem;
  border-radius: .8rem;
  color: var(--white);
  text-decoration: none;
  transition: background-color .2s ease;
}
a.products__item:hover,
a.products__item:focus-visible { background-color: rgba(102, 217, 255, .09); }
a.products__item:focus-visible { outline-offset: -2px; }
.products__icon {
  display: grid;
  place-items: center;
  width: 2.9rem;
  height: 2.9rem;
  border: 1px solid rgba(199, 238, 255, .14);
  border-radius: .8rem;
  background: radial-gradient(circle at 50% 30%, rgba(102, 217, 255, .14), rgba(143, 93, 242, .05) 72%);
  transition: border-color .25s ease;
}
.products__icon img {
  display: block;
  width: 2rem;
  height: auto;
}
a.products__item:hover .products__icon,
a.products__item:focus-visible .products__icon { border-color: rgba(102, 217, 255, .4); }
.products__text {
  display: grid;
  gap: .3rem;
}
.products__name {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: -.01em;
}
.products__meta {
  color: var(--muted);
  font-family: var(--font-display);
  font-size: .54rem;
  letter-spacing: .2em;
  text-transform: uppercase;
}

/* ----------------------------------------------------------------- Brand -- */

.footer-mark {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  width: max-content;
  text-decoration: none;
}
.footer-mark img {
  display: block;
  flex: 0 0 auto;
  width: 2.25rem;
  height: auto;
}
.brand__wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  font-family: var(--font-display);
  line-height: 1;
  text-transform: uppercase;
}
.brand__wordmark strong {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .3em;
}
.brand__wordmark span {
  color: rgba(243, 247, 255, .72);
  font-size: .56rem;
  font-weight: 500;
  letter-spacing: .34em;
}

.kicker,
.section-label,
.note-index,
.site-footer {
  font-family: var(--font-display);
  font-size: .62rem;
  letter-spacing: .24em;
  text-transform: uppercase;
}

/* ------------------------------------------------------------------ Hero -- */

.hero {
  --bh-x: 50%;
  --bh-y: 44%;
  /* The renderer publishes the live values; until then (and without WebGL)
     this matches the shadow in the cover-scaled poster. */
  --bh-r: max(8.72vw, 15.5svh, 6.2rem);
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: max(100svh, 40rem);
  overflow: hidden;
  isolation: isolate;
  background: var(--black);
}

.hero__scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--black);
}
.hero__canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.4s ease;
}
.hero.is-webgl-ready .hero__canvas { opacity: 1; }
.hero__fallback {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .6s ease;
}
/* Without WebGL: a still from the same renderer (only fetched in this case). */
.hero.is-webgl-fallback .hero__fallback {
  opacity: 1;
  background: url("./black-hole-poster.jpg") 50% 44% / cover no-repeat, var(--black);
}

/* Text legibility over the lower gas, without dimming the black hole itself. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(0deg, var(--black) 0, rgba(3, 5, 10, .74) 7%, rgba(3, 5, 10, .34) 17%, rgba(3, 5, 10, 0) 32%);
}

/* The wordmark sits inside the shadow, like the ION mark itself. */
.hero__brand {
  position: absolute;
  z-index: 2;
  top: calc(var(--bh-y) - var(--bh-r) * .3);
  left: var(--bh-x);
  display: grid;
  justify-items: center;
  gap: calc(var(--bh-r) * .07);
  font-family: var(--font-display);
  line-height: 1;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
/* Fades as the page scrolls (on the letters: the wordmark's own opacity is
   its reveal). */
.hero__brand > span { opacity: calc(1 - var(--scroll, 0) * 2.4); }
.hero__brand-ion {
  padding-left: .32em;
  color: transparent;
  background: linear-gradient(180deg, #ffffff 10%, #bfe9ff 60%, #a58cff 120%);
  -webkit-background-clip: text;
  background-clip: text;
  font-size: calc(var(--bh-r) * .38);
  font-weight: 400;
  letter-spacing: .32em;
}
.hero__brand-tech {
  padding-left: .62em;
  color: rgba(199, 230, 255, .62);
  font-size: max(.5rem, calc(var(--bh-r) * .056));
  font-weight: 500;
  letter-spacing: .62em;
}

.hero__content {
  position: relative;
  z-index: 3;
  grid-row: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 26rem);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: end;
  width: min(100%, var(--max));
  margin-inline: auto;
  padding: 0 var(--edge) clamp(2.25rem, 6vh, 4.5rem);
  opacity: calc(1 - var(--scroll, 0) * 1.6);
  translate: 0 calc(var(--scroll, 0) * -3rem);
  /* Its own layer, so fading it on scroll never repaints the shadows. */
  will-change: opacity, translate;
}
/* Legibility over the gas without a heavy scrim; a filter (unlike
   text-shadow) keeps the gradient headline clean. */
.hero__intro,
.hero__aside { filter: drop-shadow(0 .15rem 1.2rem rgba(3, 5, 10, .55)); }
.kicker {
  display: flex;
  align-items: center;
  gap: .9rem;
  margin: 0;
  color: var(--blue-soft);
  font-weight: 400;
}
.kicker::before {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), rgba(102, 217, 255, 0));
}
.hero__aside { display: grid; gap: 1.6rem; justify-items: start; }
.hero__lede {
  margin: 0;
  color: rgba(214, 224, 242, .74);
  font-size: clamp(.95rem, 1.1vw, 1.08rem);
  font-weight: 300;
  line-height: 1.65;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}
.hero-ctas a {
  display: inline-flex;
  gap: .6rem;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: .85rem 1.35rem;
  border: 1px solid rgba(199, 238, 255, .22);
  border-radius: 999px;
  color: var(--white);
  background: rgba(8, 12, 22, .35);
  font-family: var(--font-display);
  font-size: .62rem;
  letter-spacing: .2em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color .3s ease, background .3s ease, color .3s ease, transform .3s var(--ease-out), box-shadow .3s ease;
}
.hero-ctas a span { transition: transform .3s var(--ease-out); }
.hero-ctas a:first-child {
  border-color: transparent;
  color: #041019;
  background: linear-gradient(120deg, #e8f8ff, #9fe3ff 55%, #b8a4ff);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .2) inset, 0 .8rem 2.4rem rgba(102, 217, 255, .18);
}
.hero-ctas a:hover {
  border-color: rgba(102, 217, 255, .6);
  background-color: rgba(102, 217, 255, .1);
  transform: translateY(-2px);
}
.hero-ctas a:first-child:hover {
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .35) inset, 0 1rem 3rem rgba(102, 217, 255, .32);
}
.hero-ctas a:hover span { transform: translateX(3px); }

/* --------------------------------------------------------------- Layout -- */

.shell {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--edge);
}

.gradient-text {
  color: transparent;
  background: linear-gradient(95deg, #d9f3ff 0%, #8fdcff 45%, #b9a3ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.section-label {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid currentColor;
  opacity: .62;
}

.button {
  display: inline-flex;
  gap: .75rem;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: .95rem 1.5rem;
  border: 1px solid rgba(199, 238, 255, .22);
  border-radius: 999px;
  color: var(--white);
  background: rgba(8, 12, 22, .35);
  font-family: var(--font-display);
  font-size: .64rem;
  letter-spacing: .2em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .35s var(--ease-out), border-color .3s ease, background-color .3s ease, box-shadow .3s ease;
}
.button span {
  font-size: 1rem;
  line-height: 1;
  transition: transform .35s var(--ease-out);
}
.button:hover,
.button:focus-visible {
  border-color: rgba(102, 217, 255, .6);
  background-color: rgba(102, 217, 255, .1);
  transform: translateY(-2px);
}
.button:hover span { transform: translate(2px, -1px); }
.button--primary {
  border-color: transparent;
  color: #041019;
  background: linear-gradient(120deg, #e8f8ff, #9fe3ff 55%, #b8a4ff);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .2) inset, 0 .8rem 2.4rem rgba(102, 217, 255, .18);
}
.button--primary:hover,
.button--primary:focus-visible {
  border-color: transparent;
  background: linear-gradient(120deg, #f4fcff, #b6ecff 55%, #c9baff);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .35) inset, 0 1rem 3rem rgba(102, 217, 255, .32);
}

/* ------------------------------------------------------------ Deep space -- */

/* Below the hero the page stays in the same night: a faint field of soft
   stars runs behind every section. Two tiles of different sizes, so the
   pattern never visibly repeats; drawn once, never while scrolling. */
main {
  background:
    url("./starfield-1.png") 0 0 / 720px 720px,
    url("./starfield-2.png") 0 0 / 1123px 1123px,
    var(--black);
}

/* ---------------------------------------------------------------- System -- */

.system,
.company {
  position: relative;
  isolation: isolate;
  padding: var(--section-space) 0;
}
/* The stars come in gradually below the black hole, where its own sky has
   just fallen in. */
.system { background: linear-gradient(var(--black), rgba(3, 5, 10, 0) 24rem); }
/* Each section's light sits on a layer of its own that fades out before the
   section's edges, so one section runs into the next without a seam. */
.system::before,
.company::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  -webkit-mask: linear-gradient(transparent, #000 22%, #000 78%, transparent);
  mask: linear-gradient(transparent, #000 22%, #000 78%, transparent);
  pointer-events: none;
}
.system::before {
  background:
    radial-gradient(34% 24% at 22% 30%, rgba(102, 217, 255, .09), transparent 70%),
    radial-gradient(28% 22% at 38% 34%, rgba(143, 93, 242, .09), transparent 70%);
}

.system__head {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  margin-top: clamp(3rem, 6vw, 6rem);
}
.system__title {
  display: flex;
  gap: .2em;
  align-items: center;
  margin: 0;
  padding-block: clamp(1rem, 2vw, 2rem);
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 11vw, 12rem);
  font-weight: 500;
  letter-spacing: -.04em;
  line-height: .82;
}
/* The product's mark, sized to the capitals of its name. */
.system__mark {
  flex: none;
  width: auto;
  height: .62em;
  filter: drop-shadow(0 0 .2em rgba(102, 217, 255, .26));
}
/* Lit like the ION in the hero. */
.system__name {
  color: transparent;
  background: linear-gradient(180deg, #ffffff 10%, #bfe9ff 62%, #a58cff 125%);
  -webkit-background-clip: text;
  background-clip: text;
}
.system__action {
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 clamp(1.5rem, 3vw, 2.5rem) clamp(1.5rem, 4vw, 5rem);
  border-left: 1px solid var(--line);
}

.system__body {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  margin-top: clamp(2.5rem, 4vw, 4rem);
  border-top: 1px solid var(--line);
}
.system__statement,
.system__description {
  display: grid;
  align-content: center;
  gap: 1.5rem;
  min-width: 0;
  padding-block: clamp(2.75rem, 4.5vw, 5rem);
}
.system__statement { padding-right: clamp(1.5rem, 4vw, 5rem); }
.system__statement p {
  max-width: 18em;
  margin: 0;
  font-size: clamp(1.6rem, 2.7vw, 3.1rem);
  font-weight: 300;
  letter-spacing: -.035em;
  line-height: 1.1;
}
.system__description {
  padding-left: clamp(1.5rem, 4vw, 5rem);
  border-left: 1px solid var(--line);
  color: rgba(214, 224, 242, .72);
  font-size: clamp(.95rem, 1.15vw, 1.08rem);
  font-weight: 300;
  line-height: 1.8;
}
.system__description p { max-width: 30rem; margin: 0; }

/* The four things Orion keeps together, side by side. */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}
.pillar {
  display: grid;
  align-content: start;
  gap: .85rem;
  padding: clamp(1.75rem, 3vw, 2.75rem) clamp(1.25rem, 2.2vw, 2.25rem);
  border-left: 1px solid var(--line);
}
.pillar:first-child {
  padding-left: 0;
  border-left: 0;
}
.pillar:last-child { padding-right: 0; }
.pillar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}
.pillar__icon {
  width: 1.9rem;
  height: 1.9rem;
  fill: none;
  stroke: var(--blue-soft);
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke .35s ease, transform .5s var(--ease-out);
}
.pillar:hover .pillar__icon {
  stroke: var(--blue);
  transform: translateY(-2px);
}
.pillar__index {
  color: var(--muted);
  font-family: var(--font-display);
  font-size: .6rem;
  letter-spacing: .2em;
}
.pillar__title {
  margin: 0;
  font-size: clamp(1.2rem, 1.5vw, 1.45rem);
  font-weight: 400;
  letter-spacing: -.02em;
}
.pillar__text {
  margin: 0;
  color: rgba(214, 224, 242, .66);
  font-size: .95rem;
  font-weight: 300;
  line-height: 1.7;
}

/* --------------------------------------------------------------- Company -- */

.company::before {
  background:
    radial-gradient(38% 46% at 80% 44%, rgba(143, 93, 242, .13), transparent 70%),
    radial-gradient(32% 36% at 10% 70%, rgba(102, 217, 255, .06), transparent 70%);
}
.company__body {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  gap: clamp(3rem, 6vw, 6.5rem);
  align-items: end;
  margin: clamp(3.5rem, 7vw, 7rem) 0 clamp(3.5rem, 6vw, 6rem);
}
.company__title {
  margin: 0;
  font-size: clamp(2.8rem, 5.2vw, 6rem);
  font-weight: 300;
  letter-spacing: -.05em;
  line-height: .98;
}
.company__note {
  max-width: 30rem;
  padding-left: clamp(1.5rem, 3vw, 3rem);
  border-left: 1px solid var(--line);
}
.note-index {
  display: block;
  margin-bottom: 1.2rem;
  color: var(--blue-soft);
}
.company__note p {
  margin: 0;
  color: #b9c2d4;
  font-size: clamp(.95rem, 1.08vw, 1.06rem);
  font-weight: 300;
  line-height: 1.8;
}
.company__note p + p { margin-top: 1rem; }

/* Where the company is: a line with a point for each step, the current one
   lit, the one ahead still open. */
.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 clamp(3.5rem, 6vw, 5.5rem);
  padding: 0;
  list-style: none;
}
.timeline__step {
  position: relative;
  display: grid;
  align-content: start;
  gap: .7rem;
  padding: 2.1rem clamp(1rem, 3vw, 3rem) 0 0;
  border-top: 1px solid rgba(210, 224, 255, .28);
}
.timeline__step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--muted);
}
.timeline__step--now::before {
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(102, 217, 255, .14), 0 0 1rem rgba(102, 217, 255, .75);
}
.timeline__step--next {
  border-top-style: dashed;
  border-top-color: rgba(210, 224, 255, .2);
}
.timeline__step--next::before {
  border: 1px solid var(--muted);
  background: var(--black);
}
.timeline__when {
  color: var(--muted);
  font-family: var(--font-display);
  font-size: .62rem;
  letter-spacing: .24em;
  text-transform: uppercase;
}
.timeline__step--now .timeline__when { color: var(--blue); }
.timeline__what {
  color: rgba(214, 224, 242, .82);
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  font-weight: 300;
  letter-spacing: -.01em;
}
/* A dark spectrum with two emission lines, in the colours of the disk. */
.spectral-rule {
  display: grid;
  grid-template-columns: 5fr 1px 2fr 3px 1fr;
  gap: 1.4rem;
  height: 2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.spectral-rule span { background: rgba(232, 233, 237, .035); }
.spectral-rule span:nth-child(2) {
  background: var(--purple);
  box-shadow: 0 0 .9rem rgba(143, 93, 242, .7);
}
.spectral-rule span:nth-child(4) {
  background: var(--blue);
  box-shadow: 0 0 .9rem rgba(102, 217, 255, .7);
}

/* ---------------------------------------------------------------- Footer -- */

.site-footer {
  position: relative;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--black);
}
.footer__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  min-height: 11rem;
  padding-block: 3.5rem;
}
.footer__nav {
  display: flex;
  justify-content: center;
  gap: 2.25rem;
}
.footer-meta {
  display: flex;
  justify-content: flex-end;
  gap: 2.5rem;
}
.footer__nav a,
.footer-meta a {
  text-decoration: none;
  transition: color .25s ease;
}
.footer__nav a:hover,
.footer-meta a:hover { color: var(--white); }

/* ---------------------------------------------------------------- Motion -- */

.reveal { opacity: 0; transform: translateY(1rem); }
body.is-loaded .reveal {
  opacity: 1;
  transform: none;
  transition: opacity 1.1s ease, transform 1.1s var(--ease-out);
}
body.is-loaded .hero__brand.reveal { transform: translate(-50%, -50%); transition-delay: 1.9s; transition-duration: 1.6s; }
.hero__brand.reveal { transform: translate(-50%, calc(-50% + .5rem)); }
body.is-loaded .kicker.reveal { transition-delay: 1.1s; }
body.is-loaded .hero h1.reveal { transition-delay: 1.25s; }
body.is-loaded .hero__lede.reveal { transition-delay: 1.45s; }
body.is-loaded .hero-ctas.reveal { transition-delay: 1.6s; }
/* Waiting at 1%, not 0: invisible on the dark page, but already drawn on a
   layer of its own, so appearing costs nothing at the moment it happens. */
.reveal-on-scroll {
  opacity: .01;
  transform: translateY(1.6rem);
  transition: opacity 1s ease var(--delay, 0ms), transform 1.2s var(--ease-out) var(--delay, 0ms);
  will-change: opacity, transform;
}
.reveal-on-scroll.is-visible { opacity: 1; transform: none; }

/* ------------------------------------------------------------ Responsive -- */

@media (max-width: 980px) {
  .hero__content { grid-template-columns: 1fr; gap: 1.75rem; }
  .system__head,
  .system__body,
  .company__body { grid-template-columns: 1fr; }
  .system__action {
    padding: 2rem 0 0;
    border-left: 0;
  }
  .system__statement { padding: clamp(2.5rem, 6vw, 3.5rem) 0 2rem; }
  .system__description {
    padding: 2rem 0 clamp(2.5rem, 6vw, 3.5rem);
    border-top: 1px solid var(--line);
    border-left: 0;
  }
  .company__note {
    padding: 2rem 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
  /* Two by two. */
  .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pillar:nth-child(2) { padding-right: 0; }
  .pillar:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }
  .pillar:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .footer__row {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 1.4rem;
  }
  .footer__nav { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .hero { min-height: max(100svh, 36rem); }
  .hero::after {
    background: linear-gradient(0deg, var(--black) 0, rgba(3, 5, 10, .9) 5%, rgba(3, 5, 10, .58) 24%, rgba(3, 5, 10, 0) 46%);
  }
  .hero__content { padding-bottom: 2rem; }
  .hero-ctas { width: 100%; }
  .hero-ctas a { flex: 1 1 0; padding-inline: .9rem; }
  .system__title { font-size: clamp(3.6rem, 19vw, 6rem); }
  .pillars { grid-template-columns: 1fr; }
  .pillar,
  .pillar:nth-child(n) {
    padding: 1.6rem 0;
    border-left: 0;
  }
  .pillar + .pillar { border-top: 1px solid var(--line); }
  /* The timeline turns to run down the page, its line on the left. */
  .timeline { grid-template-columns: 1fr; }
  .timeline__step,
  .timeline__step--next {
    padding: 0 0 2rem 1.6rem;
    border-top: 0;
    border-left: 1px solid rgba(210, 224, 255, .28);
  }
  .timeline__step--next {
    padding-bottom: 0;
    border-left-style: dashed;
    border-left-color: rgba(210, 224, 255, .2);
  }
  .timeline__step::before {
    top: .2rem;
    left: -5px;
  }
  .spectral-rule { gap: .9rem; }
  .footer-meta { gap: 1.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  .site-logo:hover img,
  .site-logo:focus-visible img { transform: none; }
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0ms !important; transition-duration: .01ms !important; transition-delay: 0ms !important; }
  .reveal,
  .reveal-on-scroll { opacity: 1; transform: none; }
  .hero__brand.reveal { transform: translate(-50%, -50%); }
  .hero__content { translate: none; }
  .site-header.is-hidden { transform: none; }
}