@font-face {
  font-family: "Mona Sans";
  src: url("./public/fonts/MonaSans-Light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Mona Sans";
  src: url("./public/fonts/MonaSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Mona Sans";
  src: url("./public/fonts/MonaSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #080808;
  --panel: #141414;
  --paper: #f3f3f3;
  --paper-dim: #c8c8c8;
  --muted: #909090;
  --line: rgba(255, 255, 255, 0.18);
  --accent: #ffffff;
  --display: "Mona Sans", "Helvetica Neue", Arial, sans-serif;
  --page: min(100% - 48px, 1440px);
  --hero-detail-offset: clamp(28px, 3vw, 48px);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--ink);
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

main > section {
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--paper);
  background: var(--ink);
  font-family: var(--display);
  -webkit-font-smoothing: antialiased;
}

body::selection {
  color: var(--ink);
  background: var(--accent);
}

a {
  color: inherit;
  cursor: pointer;
}

/* Keep animated decoration out of the links' pointer hit areas. */
.hero-brief,
.closing-cta,
.how-link {
  cursor: pointer;
}

.hero-brief *,
.hero-brief::before,
.closing-cta *,
.closing-cta::before,
.how-link *,
.hero-disk {
  pointer-events: none;
}

a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 6px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.hero {
  position: relative;
  min-height: 85vh;
  min-height: 85svh;
  overflow: hidden;
  color: var(--ink);
  background: #ffffff;
}

.hero-copy {
  position: relative;
  z-index: 4;
  width: var(--page);
  min-height: 85vh;
  min-height: 85svh;
  margin: 0 auto;
  padding: clamp(28px, 5vh, 54px) 0 clamp(28px, 4.5vh, 48px);
}

.hero-brief {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-height: 46px;
  overflow: hidden;
  padding: 12px 17px;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 600;
  isolation: isolate;
  text-decoration: none;
  transition: color .3s ease;
}

.hero-brief::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  background: linear-gradient(110deg, #77d8d3 0%, #8d83cf 28%, #d781ad 51%, #d3aa78 72%, #77d8d3 100%);
  background-size: 220% 100%;
  background-position: 0% 50%;
  opacity: 0;
  transition: opacity .3s ease;
  animation: die-word-shimmer 8s ease-in-out infinite alternate;
}

.hero-brief > span {
  position: relative;
  z-index: 1;
}

.hero-brief:hover {
  color: var(--ink);
}

.hero-brief:hover::before {
  opacity: 1;
}

.hero-lockup {
  position: absolute;
  top: clamp(112px, 18vh, 170px);
  left: var(--hero-detail-offset);
  z-index: 2;
  width: max-content;
  max-width: calc(100% - var(--hero-detail-offset));
}

.hero h1 {
  margin: 0;
  font-size: clamp(90px, 13vw, 200px);
  font-weight: 300;
  line-height: .78;
  letter-spacing: -.065em;
  font-kerning: normal;
  text-rendering: geometricPrecision;
}

.hero h1 span {
  display: block;
}

.hero h1 > span:first-child {
  width: max-content;
  font-family: var(--display);
  font-size: .54em;
  font-weight: 600;
  line-height: .88;
  letter-spacing: -.065em;
}

.hero h1 .title-second {
  display: flex;
  gap: .12em;
  margin-top: .04em;
  margin-left: 0;
  font-family: "Iowan Old Style", Baskerville, "Times New Roman", serif;
  font-size: 1.04em;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.065em;
}

.hero h1 b {
  font: inherit;
}

.hero-tagline {
  margin: clamp(14px, 1.4vw, 22px) 0 0;
  font-size: clamp(18px, 1.7vw, 26px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -.025em;
}

.hero-bottom {
  position: absolute;
  bottom: clamp(72px, 11vh, 104px);
  left: var(--hero-detail-offset);
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 640px) minmax(max-content, 1fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: end;
  width: calc(100% - var(--hero-detail-offset));
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.5vw, 36px);
}

.hero-metrics article {
  padding: 0;
}

.hero-metrics strong {
  display: block;
  font-size: clamp(24px, 2.6vw, 38px);
  white-space: nowrap;
  font-weight: 300;
  line-height: .95;
  letter-spacing: -.055em;
}

.hero-metrics span {
  display: block;
  margin-top: 10px;
  color: #555555;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero-next {
  position: absolute;
  bottom: 24px;
  left: 50%;
  z-index: 5;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.how-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  letter-spacing: 0;
  text-decoration: none;
}

.how-link svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
  transition: transform .2s ease;
}

.how-link:hover svg,
.how-link:focus-visible svg {
  transform: translateY(5px);
}

.how-link:focus-visible {
  outline-width: 2px;
  outline-offset: 8px;
}

.hero-disk {
  position: absolute;
  right: -13vw;
  bottom: -25vw;
  width: 55vw;
  aspect-ratio: 1;
  border: 1px solid rgba(0, 0, 0, .22);
  border-radius: 50%;
  background: linear-gradient(110deg,
    rgba(119, 216, 211, .44) 0%,
    rgba(141, 131, 207, .44) 28%,
    rgba(215, 129, 173, .44) 51%,
    rgba(211, 170, 120, .44) 72%,
    rgba(119, 216, 211, .44) 100%);
  background-position: 0% 50%;
  background-size: 220% 100%;
  animation: die-word-shimmer 8s ease-in-out infinite alternate;
}

.hero-disk::before,
.hero-disk::after,
.hero-disk i {
  content: "";
  position: absolute;
  border: 1px solid rgba(0, 0, 0, .18);
  border-radius: 50%;
}

.hero-disk::before { inset: 14%; }
.hero-disk::after { inset: 28%; }
.hero-disk i:nth-child(1) { inset: 7%; }
.hero-disk i:nth-child(2) { inset: 21%; }
.hero-disk i:nth-child(3) { inset: 35%; }
.hero-disk i:nth-child(4) { inset: 42%; }

.die-slogan {
  display: flex;
  align-items: center;
  min-height: clamp(520px, 74svh, 760px);
  padding-top: clamp(72px, 8vw, 120px);
  padding-right: max(24px, calc((100vw - 1440px) / 2));
  padding-bottom: clamp(72px, 8vw, 120px);
  padding-left: calc((100% - var(--page)) / 2 + var(--hero-detail-offset));
  color: var(--paper);
  background: var(--ink);
}

.die-slogan > div {
  width: 100%;
}

.die-slogan h2 {
  margin: 0;
  font-size: clamp(70px, 10.8vw, 170px);
  font-weight: 300;
  line-height: .82;
  letter-spacing: -.075em;
}

.die-slogan h2 span {
  display: block;
}

.die-slogan h2 span + span {
  margin-top: .1em;
  color: #8f8f8f;
}

.die-slogan h2 span:nth-child(2),
.die-slogan h2 span:last-child {
  display: inline-block;
}

.die-slogan h2 span:last-child {
  margin-top: 0;
  margin-left: .08em;
}

.die-word {
  display: inline-block;
  margin-inline: 0;
  color: transparent;
  font-family: "Iowan Old Style", Baskerville, "Times New Roman", serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.035em;
  background: linear-gradient(110deg, #77d8d3 0%, #8d83cf 28%, #d781ad 51%, #d3aa78 72%, #77d8d3 100%);
  background-size: 220% 100%;
  background-position: 0% 50%;
  background-clip: text;
  -webkit-background-clip: text;
  filter: saturate(.82) brightness(.96);
  animation: die-word-shimmer 8s ease-in-out infinite alternate;
}

.thesis,
.architecture,
.equations,
.ai-memory,
.systems {
  position: relative;
  padding: clamp(88px, 9vw, 140px) max(24px, calc((100vw - 1440px) / 2));
}

.thesis {
  padding-top: clamp(48px, 5vw, 72px);
  color: var(--ink);
  background: #ffffff;
  border-top: 1px solid rgba(0, 0, 0, .16);
}

.thesis-heading h2 em {
  color: #4a4a4a;
}

.thesis-heading h2,
.architecture h2,
.equations h2,
.ai-memory h2,
.systems h2 {
  margin: 0;
  font-size: clamp(50px, 7.4vw, 118px);
  font-weight: 300;
  line-height: .88;
  letter-spacing: -.065em;
}

h2 em {
  color: var(--accent);
  font-style: normal;
}

.thesis-heading {
  display: block;
}

.compare {
  margin-top: clamp(36px, 4vw, 60px);
  color: var(--ink);
}

.compare-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 0;
  background: rgba(0, 0, 0, .18);
  border: 1px solid rgba(0, 0, 0, .18);
}

.compare-card {
  min-height: 590px;
  padding: clamp(24px, 3vw, 46px);
  color: var(--ink);
  background: #e6e6e6;
}

.compare-card.future {
  color: var(--ink);
  background: linear-gradient(110deg, #77d8d3 0%, #8d83cf 28%, #d781ad 51%, #d3aa78 72%, #77d8d3 100%);
  background-size: 220% 100%;
  background-position: 0% 50%;
  animation: die-word-shimmer 8s ease-in-out infinite alternate;
}

.card-top {
  display: flex;
  justify-content: space-between;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(0, 0, 0, .25);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
}

.future .card-top {
  border-color: rgba(8, 8, 8, .26);
}

.compare-card h3 {
  margin: 32px 0 16px;
  font-size: clamp(32px, 3.4vw, 54px);
  font-weight: 300;
  line-height: .98;
  letter-spacing: -.05em;
}

.compare-card > p {
  max-width: 440px;
  margin: 0;
  color: #686868;
  font-size: 16px;
  line-height: 1.55;
}

.future > p {
  color: rgba(8, 8, 8, .62);
}

.legacy-viz,
.array-viz {
  position: relative;
  height: 270px;
  overflow: hidden;
  border-bottom: 1px solid rgba(0, 0, 0, .2);
}

.array-viz {
  --platter-size: min(230px, calc(100% - 24px));
  border-color: rgba(8, 8, 8, .22);
}

.array-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--platter-size);
  aspect-ratio: 1;
  border: 1px solid #8b8b8b;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.array-rings::after {
  content: "";
  position: absolute;
  inset: 38%;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: #e6e6e6;
}

.array-rings::before,
.array-rings {
  color: #858585;
}

.legacy-drive {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.legacy-phases {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 0;
  display: flex;
  gap: 18px;
}

.legacy-phase {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #222;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .12em;
  opacity: .24;
  text-transform: uppercase;
}

.legacy-phase i {
  width: 5px;
  height: 5px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.phase-move { animation: legacy-phase-move 6.4s linear infinite; }
.phase-wait { animation: legacy-phase-wait 6.4s linear infinite; }
.phase-read { animation: legacy-phase-read 6.4s linear infinite; }

.legacy-platter-spin {
  transform-box: view-box;
  transform-origin: 245px 170px;
  animation: legacy-platter-spin 6.4s linear infinite;
  will-change: transform;
}

.legacy-target-sector {
  fill: #222;
  animation: legacy-sector 6.4s linear infinite;
}

.legacy-request-track {
  stroke: #4c4c4c;
  stroke-width: 2;
  stroke-dasharray: 2 7;
  animation: legacy-track 6.4s linear infinite;
}

.legacy-actuator {
  transform-box: view-box;
  transform-origin: 562px 315px;
  animation: legacy-seek 6.4s cubic-bezier(.64, 0, .2, 1) infinite;
  will-change: transform;
}

.legacy-arm-shadow {
  fill: rgba(0, 0, 0, .2);
  transform: translateY(3px);
}

.legacy-arm-body {
  fill: url(#legacy-arm-metal);
  stroke: #050505;
  stroke-width: 1;
}

.legacy-head {
  fill: #111;
}

.legacy-read-signal {
  fill: none;
  stroke: #fff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 5 11;
  opacity: 0;
  animation: legacy-read-signal 6.4s linear infinite;
}

.legacy-read-pulse {
  fill: none;
  stroke: #111;
  stroke-width: 2;
  opacity: 0;
  transform-box: view-box;
  transform-origin: 329px 315px;
  animation: legacy-read-pulse 6.4s ease-out infinite;
}

.compare:not(.is-visible) .legacy-viz *,
.compare:not(.is-visible) .array-viz * {
  animation-play-state: paused;
}

.array-rings {
  background: repeating-radial-gradient(circle at center, transparent 0 23px, rgba(8, 8, 8, .22) 24px 25px);
  border-color: rgba(8, 8, 8, .52);
  animation: platter-rotation 10s linear infinite;
}

.array-platter-texture {
  display: block;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: rgba(8, 8, 8, .35);
  stroke-width: 3;
  pointer-events: none;
}

.array-rings::after {
  color: rgba(8, 8, 8, .65);
  background: transparent;
}

.array-points {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--platter-size);
  aspect-ratio: 1;
  border-radius: 50%;
  background-image: radial-gradient(circle, rgba(8, 8, 8, .92) 0 2px, transparent 2.8px);
  background-size: 22px 22px;
  clip-path: circle(49% at 50% 50%);
  opacity: .9;
  transform: translate(-50%, -50%);
}

.architecture {
  color: var(--ink);
  background: var(--paper);
}

.architecture-intro h2 {
  max-width: 1050px;
}

.architecture-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr);
  gap: clamp(48px, 8vw, 140px);
  align-items: start;
  margin-top: clamp(72px, 8vw, 120px);
}

.architecture-stage {
  position: sticky;
  top: 60px;
  min-height: min(640px, calc(100vh - 120px));
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, .3);
  background: #080808;
}

.stage-grid {
  position: absolute;
  inset: 0;
  opacity: .24;
  background-image:
    linear-gradient(rgba(255, 255, 255, .14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .14) 1px, transparent 1px);
  background-size: 36px 36px;
}

.architecture-stage svg {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(96%, 720px);
  transform: translate(-50%, -53%);
}

.stage-layer,
.stage-write {
  transition: opacity .45s ease, transform .55s cubic-bezier(.2, .75, .2, 1), filter .45s ease;
  transform-origin: center;
}

.architecture-stage[data-active="sensor"] .stage-layer:not(.stage-layer-sensor),
.architecture-stage[data-active="write"] .stage-layer,
.architecture-stage[data-active="write"] .stage-layer-sensor,
.architecture-stage[data-active="map"] .stage-write,
.architecture-stage[data-active="compute"] .stage-layer:not(.stage-layer-compute),
.architecture-stage[data-active="compute"] .stage-write {
  opacity: .2;
  filter: saturate(.2);
}

.architecture-stage[data-active="write"] .stage-write {
  filter: drop-shadow(0 0 7px rgba(255, 255, 255, .35));
  transform: translate(-12px, -5px) rotate(-2deg);
}

.architecture-stage[data-active="map"] .stage-layer-sensor {
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, .35));
  transform: translateY(10px) scale(1.02);
}

.architecture-stage[data-active="compute"] .stage-layer-compute {
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, .3));
  transform: translateY(-5px) scale(1.03);
}

.stage-caption {
  position: absolute;
  right: 24px;
  bottom: 22px;
  left: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--paper);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.stage-caption p {
  margin: 0 0 0 auto;
}

.architecture-steps {
  padding-bottom: 10vh;
}

.architecture-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-content: center;
  min-height: 60vh;
  padding: 32px 0;
  opacity: .14;
  transition: opacity .35s ease;
}

.architecture-step.is-active {
  opacity: 1;
}



.architecture-step h3 {
  margin: 0 0 28px;
  font-size: clamp(40px, 4.5vw, 68px);
  font-weight: 300;
  line-height: .95;
  letter-spacing: -.055em;
}

.architecture-step p {
  max-width: 520px;
  margin: 0;
  font-size: clamp(18px, 1.55vw, 24px);
  line-height: 1.45;
  letter-spacing: -.02em;
}

.equations {
  background: var(--ink);
}

.equations-heading {
  display: block;
}

.equations-heading h2 {
  margin-top: 0;
  font-size: clamp(44px, 5.4vw, 84px);
}

.equations-heading > p:last-child {
  max-width: 690px;
  margin: 32px 0 0 auto;
  color: var(--muted);
  font-size: clamp(18px, 1.8vw, 27px);
  line-height: 1.45;
}

.equation-list {
  margin-top: clamp(56px, 6vw, 88px);
  border-top: 1px solid var(--line);
}

.equation-list article {
  display: grid;
  grid-template-columns: .6fr .8fr 1fr;
  gap: 30px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.equation-list span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.equation-list strong {
  color: var(--accent);
  font-size: clamp(32px, 4vw, 62px);
  font-weight: 300;
  letter-spacing: -.04em;
}

.equation-list sub {
  font-size: .42em;
}

.equation-list p {
  margin: 0;
  color: var(--paper-dim);
  font-size: 16px;
  line-height: 1.5;
}

.equation-note {
  margin: 22px 0 0;
  color: #8a8a8a;
  font-size: 12px;
  letter-spacing: .05em;
}

.ai-memory {
  overflow: hidden;
  color: var(--ink);
  background: var(--paper);
}

.ai-memory::before {
  content: "";
  position: absolute;
  top: -30vw;
  right: -18vw;
  width: 68vw;
  aspect-ratio: 1;
  border: 1px solid rgba(0, 0, 0, .15);
  border-radius: 50%;
  box-shadow: inset 0 0 0 8vw var(--paper), inset 0 0 0 calc(8vw + 1px) rgba(0, 0, 0, .15), inset 0 0 0 17vw var(--paper), inset 0 0 0 calc(17vw + 1px) rgba(0, 0, 0, .15);
}

.ai-heading {
  position: relative;
  z-index: 1;
}

.ai-heading h2 {
  max-width: 1100px;
}

.ai-heading h2 em {
  color: #4a4a4a;
}

.memory-diagram {
  position: relative;
  z-index: 1;
  margin-top: clamp(60px, 7vw, 100px);
  padding: clamp(22px, 3vw, 44px);
  border: 1px solid rgba(0, 0, 0, .25);
  background: rgba(255, 255, 255, .62);
  backdrop-filter: blur(10px);
}

.memory-flow {
  display: grid;
  grid-template-columns: minmax(250px, .9fr) 96px minmax(340px, 1.35fr);
  gap: 0;
  align-items: stretch;
}

.memory-node {
  min-height: 190px;
  padding: 24px;
  border: 1px solid rgba(0, 0, 0, .24);
}

.compute-node {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  min-height: 280px;
  text-align: center;
}

.memory-node.compute-node h3 {
  margin: 0;
}

.memory-node > span {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
}

.memory-node h3 {
  margin: 56px 0 6px;
  font-size: clamp(28px, 2.7vw, 42px);
  font-weight: 400;
  letter-spacing: -.04em;
}

.memory-node p {
  margin: 0;
  color: #686868;
  font-size: 13px;
}

.hdd-node {
  color: var(--ink);
  background: linear-gradient(110deg, #77d8d3 0%, #8d83cf 28%, #d781ad 51%, #d3aa78 72%, #77d8d3 100%);
  background-size: 220% 100%;
  background-position: 0% 50%;
  animation: die-word-shimmer 8s ease-in-out infinite alternate;
}

.hdd-node p {
  color: rgba(8, 8, 8, .62);
}

.memory-links {
  position: relative;
  min-height: 280px;
}

.memory-links::before,
.memory-links::after,
.memory-link {
  content: "";
  position: absolute;
  background: rgba(0, 0, 0, .42);
}

.memory-links::before {
  top: 50%;
  right: 50%;
  left: 0;
  height: 1px;
}

.memory-links::after {
  top: 25%;
  bottom: 25%;
  left: 50%;
  width: 1px;
}

.memory-link {
  right: 0;
  left: 50%;
  height: 1px;
}

.memory-link-hbm { top: 25%; }
.memory-link-hdd { top: 75%; }

.memory-link b {
  position: absolute;
  top: 50%;
  right: 10px;
  padding: 0 6px;
  color: #555555;
  background: transparent;
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  transform: translateY(-50%);
}

.memory-branches {
  display: grid;
  grid-template-rows: repeat(2, 1fr);
  gap: 12px;
}

.memory-branches .memory-node {
  min-height: 134px;
  padding: 20px 24px;
}

.memory-branches .memory-node h3 {
  margin: 22px 0 4px;
  font-size: clamp(26px, 2.4vw, 37px);
}

.ai-footnote {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 36px 0 0;
  font-size: clamp(18px, 1.7vw, 25px);
  line-height: 1.5;
  letter-spacing: -.02em;
}

.systems {
  background: #111111;
}

.systems-heading {
  display: block;
}

.systems-heading h2 {
  margin-top: 0;
  font-size: clamp(46px, 5.6vw, 90px);
}

.systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(64px, 7vw, 100px);
  border: 1px solid var(--line);
  background: var(--line);
}

.systems-grid article {
  min-height: 420px;
  padding: clamp(24px, 3vw, 44px);
  background: #111111;
}

.systems-kicker {
  margin: 28px 0 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .11em;
}

.systems-grid h3 {
  margin: 28px 0 20px;
  font-size: clamp(28px, 2.4vw, 38px);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -.045em;
}

.systems-grid article > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

/* Schematic sequences: relocate data, sustain airflow, mask the write zone. */
.systems-motion {
  display: block;
  width: 100%;
  height: 180px;
  padding-bottom: 16px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  fill: none;
  stroke: #ddd;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.systems-motion .motion-muted { stroke: #555; }
.remap-route { stroke: #999; stroke-dasharray: 3 6; }
.remap-failure { animation: remap-failure 7s infinite; }
.remap-destination { animation: remap-arrival 7s infinite; }
.remap-packet { fill: #fff; stroke: none; animation: remap-packet 7s infinite; }
.air-plane { animation: air-clearance 5s ease-in-out infinite; }
.air-stream { stroke-dasharray: 28 12 6 12; animation: air-flow 3s linear infinite; }
.stream-two { animation-delay: -1.5s; opacity: .55; }
.air-surface { stroke: #777; animation: surface-flow 1.5s linear infinite; }
.write-sensor { fill: #ddd; stroke: none; animation: sensor-mask 8s infinite; }
.sensor-1 { animation-delay: .65s; }
.sensor-2 { animation-delay: 1.3s; }
.sensor-3 { animation-delay: 1.95s; }
.sensor-4 { animation-delay: 2.6s; }
.sensor-5 { animation-delay: 3.25s; }
.sensor-6 { animation-delay: 3.9s; }
.sensor-7 { animation-delay: 4.55s; }
.write-head { animation: writer-travel 8s linear infinite; }
.write-mask { fill: #111; fill-opacity: .65; stroke: #888; stroke-dasharray: 3 5; }
.write-field { animation: write-field 1s ease-in-out infinite; }
@keyframes remap-failure {
  0%, 12%, 90%, 100% { opacity: 0; }
  18%, 24%, 32%, 80% { opacity: 1; }
  21%, 28% { opacity: .2; }
}
@keyframes remap-arrival {
  0%, 65%, 100% { opacity: .15; fill: transparent; }
  72%, 88% { opacity: 1; fill: #ffffff22; }
}
@keyframes remap-packet {
  0%, 26%, 74%, 100% { opacity: 0; }
  30%, 70% { opacity: 1; }
}
@keyframes air-clearance { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
@keyframes air-flow { to { stroke-dashoffset: -116; } }
@keyframes surface-flow { to { transform: translateX(41px); } }
@keyframes writer-travel {
  0%, 8% { transform: translateX(39px); opacity: 1; }
  73%, 88% { transform: translateX(263px); opacity: 1; }
  94% { transform: translateX(263px); opacity: 0; }
  95%, 100% { transform: translateX(39px); opacity: 0; }
}
@keyframes sensor-mask { 0%, 8%, 25%, 100% { opacity: 1; } 10%, 21% { opacity: .12; } }
@keyframes write-field { 0%,100% { opacity: .25; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .systems-motion * { animation: none !important; }
  .remap-packet { display: none; }
  .remap-failure { opacity: 1; }
  .write-head { transform: translateX(151px); }
}

.closing {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 7vw, 104px) max(24px, calc((100vw - 1440px) / 2)) clamp(28px, 3vw, 48px);
  color: var(--ink);
  background: #ffffff;
}

.closing h2 {
  position: relative;
  z-index: 2;
  margin: clamp(110px, 12vw, 190px) 0 0;
  font-size: clamp(90px, 13vw, 200px);
  font-weight: 300;
  line-height: .78;
  letter-spacing: -.065em;
  font-kerning: normal;
  text-rendering: geometricPrecision;
}

.closing h2 span {
  display: block;
}

.closing h2 span:first-child {
  width: max-content;
  font-family: var(--display);
  font-size: .54em;
  font-weight: 600;
  line-height: .88;
  letter-spacing: -.065em;
}

.closing h2 span:last-child {
  margin-top: .04em;
  margin-left: 0;
  font-family: "Iowan Old Style", Baskerville, "Times New Roman", serif;
  font-size: 1.04em;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -.065em;
}

.closing-footer {
  position: relative;
  z-index: 3;
  padding-top: 22px;
  border-top: 1px solid rgba(0, 0, 0, .18);
}

.closing-actions {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
}

.closing-footer p {
  margin: 0;
  font-size: clamp(15px, 1.4vw, 21px);
  line-height: 1.4;
}

.closing-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}

.closing-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-height: 44px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
}

.closing-cta {
  position: relative;
  gap: 20px;
  overflow: hidden;
  padding: 13px 18px;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  isolation: isolate;
  transition: color .3s ease;
}

.closing-cta::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  background: linear-gradient(110deg, #77d8d3 0%, #8d83cf 28%, #d781ad 51%, #d3aa78 72%, #77d8d3 100%);
  background-size: 220% 100%;
  background-position: 0% 50%;
  opacity: 0;
  transition: opacity .3s ease;
  animation: die-word-shimmer 8s ease-in-out infinite alternate;
}

.closing-cta > span {
  position: relative;
  z-index: 1;
}

.closing-cta:hover {
  color: var(--ink);
}

.closing-cta:hover::before {
  opacity: 1;
}

.closing-disk {
  position: absolute;
  right: -14vw;
  bottom: -24vw;
  width: 58vw;
  aspect-ratio: 1;
  border: 1px solid rgba(0, 0, 0, .24);
  border-radius: 50%;
}

.closing-disk::before,
.closing-disk::after,
.closing-disk i {
  content: "";
  position: absolute;
  border: 1px solid rgba(0, 0, 0, .2);
  border-radius: 50%;
}

.closing-disk::before { inset: 15%; }
.closing-disk::after { inset: 31%; background: #ffffff; }
.closing-disk i:nth-child(1) { inset: 7%; }
.closing-disk i:nth-child(2) { inset: 23%; }
.closing-disk i:nth-child(3) { inset: 42%; background: var(--ink); }

.closing-legal {
  position: absolute;
  right: max(24px, calc((100vw - 1440px) / 2));
  bottom: clamp(22px, 2.5vw, 38px);
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
}

.privacy-link,
.investor-link {
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(8, 8, 8, .45);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
}

.thesis-heading h2,
.architecture-intro h2,
.equations-heading h2,
.ai-heading h2,
.systems-heading h2,
.closing h2 {
  margin-left: var(--hero-detail-offset);
}

.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2, .75, .2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes legacy-seek {
  0%, 4% { transform: rotate(50deg); }
  25%, 76% { transform: rotate(30deg); }
  88%, 100% { transform: rotate(50deg); }
}

@keyframes legacy-platter-spin {
  0% { transform: rotate(-480deg); }
  60% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes legacy-track {
  0%, 3%, 88%, 100% { opacity: 0; }
  8%, 76% { opacity: .72; }
}

@keyframes legacy-sector {
  0%, 6%, 87%, 100% { opacity: .22; }
  14%, 59% { opacity: 1; }
  62%, 72% { opacity: .15; }
}

@keyframes legacy-read-signal {
  0%, 59%, 77%, 100% { opacity: 0; stroke-dashoffset: 0; }
  62%, 73% { opacity: .95; }
  76% { opacity: 0; stroke-dashoffset: -48; }
}

@keyframes legacy-read-pulse {
  0%, 59%, 77%, 100% { opacity: 0; transform: scale(.55); }
  62% { opacity: .9; transform: scale(.7); }
  75% { opacity: 0; transform: scale(2.25); }
}

@keyframes legacy-phase-move {
  0%, 3%, 25%, 100% { opacity: .24; }
  4%, 24% { opacity: 1; }
}

@keyframes legacy-phase-wait {
  0%, 24%, 60%, 100% { opacity: .24; }
  25%, 59% { opacity: 1; }
}

@keyframes legacy-phase-read {
  0%, 59%, 77%, 100% { opacity: .24; }
  60%, 76% { opacity: 1; }
}

@keyframes platter-rotation {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes die-word-shimmer {
  to {
    background-position: 100% 50%;
  }
}

@media (max-width: 980px) {
  :root { --page: min(100% - 36px, 1440px); }

  .thesis-heading h2,
  .architecture-intro h2,
  .equations-heading h2,
  .ai-heading h2,
  .systems-heading h2,
  .closing h2 {
    margin-left: calc(var(--hero-detail-offset) - 6px);
  }

  .hero-bottom {
    grid-template-columns: minmax(0, 560px) minmax(max-content, 1fr);
  }

  .architecture-layout {
    grid-template-columns: 1fr;
  }

  .architecture-stage {
    position: relative;
    top: auto;
    min-height: 62vh;
    z-index: 2;
  }

  .architecture-steps { padding-bottom: 0; }

  .architecture-step {
    min-height: auto;
    padding: 80px 0;
    opacity: 1;
  }

  .systems-grid {
    grid-template-columns: 1fr;
  }

  .systems-grid article { min-height: auto; }

}

@media (max-width: 720px) {
  :root { --page: calc(100% - 32px); }

  .thesis-heading h2,
  .architecture-intro h2,
  .equations-heading h2,
  .ai-heading h2,
  .systems-heading h2,
  .closing h2 {
    margin-left: 20px;
  }

  html {
    scrollbar-width: none;
  }

  html::-webkit-scrollbar,
  body::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
  }

  .hero {
    min-height: 75svh;
  }

  .hero-copy {
    min-height: 75svh;
    padding: 28px 0 24px;
  }

  .hero-brief {
    top: 16px;
    right: 16px;
    gap: 14px;
    min-height: 40px;
    padding: 9px 12px;
    font-size: 12px;
  }

  .hero-lockup {
    top: 20%;
    left: 20px;
    max-width: calc(100% - 20px);
  }

  .hero h1 {
    width: max-content;
    font-size: clamp(64px, 20.5vw, 102px);
    line-height: .78;
  }

  .hero h1 .title-second {
    flex-direction: row;
    gap: .12em;
    margin-top: .04em;
    margin-left: 0;
  }

  .hero-tagline {
    max-width: 270px;
    margin-top: 9px;
    font-size: 18px;
    line-height: 1.25;
  }

  .hero-bottom {
    bottom: 104px;
    left: 20px;
    grid-template-columns: 1fr;
    gap: 11px;
    width: calc(100% - 20px);
  }

  .hero-metrics {
    gap: 10px;
    width: 100%;
  }

  .hero-metrics article {
    padding: 0;
  }

  .hero-metrics strong {
    font-size: clamp(20px, 5vw, 34px);
  }

  .hero-metrics span {
    margin-top: 6px;
    font-size: 8px;
  }

  .how-link {
    gap: 8px;
    font-size: 13px;
  }

  .how-link svg {
    width: 16px;
  }

  .hero-disk {
    right: -72vw;
    bottom: 12%;
    width: 145vw;
  }

  .die-slogan {
    min-height: 65svh;
    padding: 72px 16px 72px 36px;
  }

  .die-slogan h2 {
    font-size: clamp(58px, 18vw, 82px);
    line-height: .88;
  }

  .die-slogan h2 span:nth-child(2),
  .die-slogan h2 span:last-child {
    display: block;
  }

  .die-slogan h2 span:last-child {
    margin-top: .025em;
    margin-left: 0;
  }

  .thesis,
  .architecture,
  .equations,
  .ai-memory,
  .systems {
    padding: 80px 16px;
  }

  .thesis-heading h2,
  .architecture h2,
  .equations h2,
  .ai-memory h2,
  .systems h2 {
    margin-top: 30px;
    font-size: clamp(44px, 12.5vw, 66px);
  }

  .thesis { padding-top: 44px; }

  .thesis-heading h2 { margin-top: 0; }

  .compare { margin-top: 36px; }

  .compare-cards {
    grid-template-columns: 1fr;
  }

  .compare-card {
    min-height: auto;
  }

  .legacy-viz,
  .array-viz { height: 260px; }

  .legacy-drive {
    transform: translateX(-3%) scale(1.16);
  }

  .architecture-layout { margin-top: 70px; }

  .architecture-stage {
    min-height: 430px;
  }

  .architecture-step {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 64px 0;
  }

  .architecture-step h3 { font-size: 45px; }

  .architecture-step p { font-size: 18px; }

  .equations-heading > p:last-child { margin-top: 32px; }

  .equation-list { margin-top: 72px; }

  .equation-list article {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 28px 0;
  }

  .equation-list strong { font-size: 41px; }

  .memory-diagram {
    margin-top: 72px;
    padding: 18px;
  }

  .memory-flow {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .memory-node { min-height: 155px; }

  .compute-node {
    min-height: 180px;
  }

  .memory-links {
    min-height: 64px;
  }

  .memory-links::before {
    top: 0;
    right: auto;
    bottom: auto;
    left: 50%;
    width: 1px;
    height: 32px;
  }

  .memory-links::after {
    top: 32px;
    right: 25%;
    bottom: auto;
    left: 25%;
    width: auto;
    height: 1px;
  }

  .memory-link {
    top: 32px;
    bottom: 0;
    width: 1px;
    height: auto;
  }

  .memory-link-hbm {
    right: auto;
    left: 25%;
  }

  .memory-link-hdd {
    right: auto;
    left: 75%;
  }

  .memory-link b {
    top: auto;
    right: auto;
    bottom: 6px;
    left: 50%;
    padding: 0 4px;
    font-size: 16px;
    transform: translateX(-50%) rotate(90deg);
  }

  .memory-branches {
    grid-template-rows: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .memory-branches .memory-node {
    min-height: 170px;
    padding: 16px;
  }

  .memory-branches .memory-node h3 {
    margin-top: 28px;
    font-size: 25px;
  }

  .ai-footnote { margin-top: 36px; }

  .systems-grid { margin-top: 72px; }

  .systems-grid article { min-height: 420px; }

  .closing {
    padding: 56px 16px 24px;
  }

  .closing h2 {
    margin-top: 112px;
    font-size: clamp(64px, 20.5vw, 102px);
  }

  .closing h2 span:last-child { margin-left: 0; }

  .closing-footer {
    padding-top: 18px;
  }

  .closing-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }

  .closing-links {
    align-items: flex-start;
    flex-direction: column;
    width: 100%;
  }

  .closing-cta {
    width: 100%;
  }

  .closing-legal {
    position: relative;
    right: auto;
    bottom: auto;
    margin: 32px 0 0 auto;
  }

  .closing-disk {
    right: -45vw;
    bottom: -18vw;
    width: 100vw;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .legacy-actuator { transform: rotate(30deg); }
  .legacy-request-track { opacity: .72; }
  .legacy-target-sector { opacity: 1; }
}

/* Align the closing tagline with the wordmark at each breakpoint. */
.closing-footer p { margin-left: var(--hero-detail-offset); }
@media (max-width: 980px) {
  .closing-footer p { margin-left: calc(var(--hero-detail-offset) - 6px); }
}
@media (max-width: 720px) {
  .closing-footer p { margin-left: 20px; }
}

/* Keep the introduction above the wordmark and group the actions below. */
.closing-actions { align-items: flex-start; }
.closing-bottom {
  position: absolute;
  right: max(24px, calc((100vw - 1440px) / 2));
  bottom: clamp(22px, 2.5vw, 38px);
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 24px;
}
.closing-bottom .closing-legal {
  position: static;
  margin: 0;
}
@media (max-width: 980px) {
  .closing-bottom {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 36px;
  }
}