:root {
  --ink: #0b0d0f;
  --ink-raised: #111418;
  --ink-soft: #171b20;
  --paper: #f0ede5;
  --paper-deep: #e4dfd4;
  --signal: #fd3f03;
  --signal-bright: #ff5424;
  --white: #f8f5ed;
  --muted: #a7a39a;
  --line-dark: rgba(248, 245, 237, 0.16);
  --line-light: rgba(11, 13, 15, 0.18);
  --sans: "Jost", "Century Gothic", Futura, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --shell: min(1440px, calc(100vw - clamp(40px, 8vw, 112px)));
  --header-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 28px);
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html,
body {
  max-width: 100%;
  overflow-x: clip;
}

img,
canvas {
  display: block;
  max-width: 100%;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  text-wrap: pretty;
}

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

:focus-visible {
  outline: 2px solid var(--signal-bright);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid var(--line-dark);
  background: rgba(11, 13, 15, 0.9);
  backdrop-filter: blur(18px) saturate(125%);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: clamp(24px, 3vw, 48px);
}

.header-inner,
.hero-grid,
.hero-copy,
.hero-figure,
.two-col-heading > *,
.panel-head > *,
.argus-intro > *,
.contact-grid > *,
.contact-options > *,
.reference-card > * {
  min-width: 0;
}

.brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 27px;
  height: 21px;
  object-fit: contain;
}

.brand-name {
  width: 104px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.2vw, 34px);
  margin-left: auto;
  font-size: 13px;
  font-weight: 500;
  color: rgba(248, 245, 237, 0.68);
}

.site-nav a {
  position: relative;
  padding-block: 8px;
  transition: color 160ms ease;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 1px;
  left: 0;
  height: 1px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--white);
}

.site-nav a:hover::after,
.site-nav a.is-current::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-cta {
  flex: none;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-small {
  min-height: 40px;
  padding: 9px 15px;
  font-size: 13px;
}

.button-solid {
  background: var(--signal);
  color: var(--ink);
}

.button-solid:hover {
  background: var(--white);
}

.button-ghost {
  border-color: rgba(248, 245, 237, 0.38);
  color: var(--white);
}

.button-ghost:hover {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.button-dark {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.button-dark:hover {
  background: var(--signal);
  color: var(--ink);
}

.section-dark {
  background: var(--ink);
  color: var(--white);
}

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

.section-ink {
  background: var(--ink-raised);
  color: var(--white);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
  padding-top: clamp(70px, 8vw, 132px);
}

.hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(248, 245, 237, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(248, 245, 237, 0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 78%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(44px, 7vw, 120px);
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(54px, 7vw, 102px);
}

.eyebrow,
.panel-kicker,
.control-label,
.section-index,
.application-tag,
.reference-label,
.architecture-head,
.card-number,
.validation-card > span,
.contact-card > span {
  margin: 0;
  color: rgba(248, 245, 237, 0.62);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
}

.eyebrow-line {
  width: 28px;
  height: 2px;
  background: var(--signal);
}

.hero h1 {
  max-width: 8.4ch;
  margin: clamp(28px, 3.6vw, 52px) 0 0;
  font-size: clamp(4.2rem, 8.4vw, 8.75rem);
  font-weight: 600;
  letter-spacing: -0.065em;
  line-height: 0.88;
  text-wrap: balance;
}

.hero h1 span {
  color: var(--signal);
}

.hero-intro {
  max-width: 53ch;
  margin: clamp(28px, 3vw, 44px) 0 0;
  color: rgba(248, 245, 237, 0.72);
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.52;
}

.hero .button-row {
  margin-top: 30px;
}

.hero-figure {
  min-width: 0;
  margin: 0;
}

.hero-canvas-wrap {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background:
    radial-gradient(circle at 50% 48%, rgba(253, 63, 3, 0.12), transparent 37%),
    #0d1013;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.35);
}

.hero-canvas-wrap::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(110deg, rgba(255, 255, 255, 0.035), transparent 26%, transparent 72%, rgba(253, 63, 3, 0.045));
  content: "";
  pointer-events: none;
}

#heroCanvas {
  width: 100%;
  height: 620px;
}

.canvas-corners::before,
.canvas-corners::after {
  position: absolute;
  z-index: 2;
  width: 36px;
  height: 36px;
  border-color: rgba(248, 245, 237, 0.45);
  content: "";
  pointer-events: none;
}

.canvas-corners::before {
  top: 18px;
  left: 18px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.canvas-corners::after {
  right: 18px;
  bottom: 18px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.hero-readout {
  position: absolute;
  z-index: 3;
  top: 20px;
  right: 22px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
  color: rgba(248, 245, 237, 0.55);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.hero-figure figcaption,
.architecture-figure figcaption {
  margin-top: 12px;
  color: rgba(248, 245, 237, 0.62);
  font-size: 12px;
}

.hero-metrics {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-dark);
}

.metric {
  min-height: 132px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  padding: 24px clamp(20px, 2.8vw, 42px);
  border-right: 1px solid var(--line-dark);
}

.metric:first-child {
  padding-left: 0;
}

.metric:last-child {
  border-right: 0;
}

.metric-value {
  font-family: var(--mono);
  font-size: clamp(24px, 2.4vw, 34px);
  letter-spacing: -0.04em;
}

.metric-label {
  color: rgba(248, 245, 237, 0.55);
  font-size: 13px;
}

.metric-accent .metric-value {
  color: var(--signal);
}

.section {
  padding-block: clamp(96px, 11vw, 176px);
}

.section-heading {
  margin-bottom: clamp(44px, 6vw, 84px);
}

.section-index {
  margin-bottom: clamp(24px, 3vw, 42px);
  color: var(--signal);
}

.section-heading h2,
.contact-heading h2 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.8rem, 5.5vw, 6rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 0.94;
  text-wrap: balance;
}

.two-col-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(300px, 0.74fr);
  align-items: end;
  gap: clamp(40px, 8vw, 128px);
}

.two-col-heading .section-index {
  margin-bottom: clamp(24px, 3vw, 42px);
}

.section-copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.section-copy p {
  max-width: 55ch;
  margin: 0;
  color: rgba(248, 245, 237, 0.68);
  font-size: clamp(16px, 1.28vw, 19px);
  line-height: 1.6;
}

.section-paper .section-copy p {
  color: rgba(11, 13, 15, 0.68);
}

.instrument-panel {
  border: 1px solid var(--line-dark);
  background: var(--ink-raised);
  padding: clamp(24px, 3.5vw, 52px);
}

.instrument-panel-light {
  border-color: var(--line-light);
  background: rgba(255, 255, 255, 0.24);
}

.panel-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(30px, 4vw, 52px);
}

.panel-kicker {
  margin-bottom: 10px;
  color: rgba(248, 245, 237, 0.54);
}

.instrument-panel-light .panel-kicker {
  color: rgba(11, 13, 15, 0.58);
}

.panel-head h3 {
  max-width: 23ch;
  margin: 0;
  font-size: clamp(25px, 2.6vw, 42px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1;
}

.model-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
}

.control-label {
  margin-right: 5px;
  color: rgba(248, 245, 237, 0.5);
}

.control-button {
  min-height: 36px;
  padding: 7px 11px;
  border: 1px solid rgba(248, 245, 237, 0.28);
  background: transparent;
  color: rgba(248, 245, 237, 0.8);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease;
}

.control-button:hover {
  border-color: var(--white);
}

.control-button.is-active {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--ink);
}

.pause-button {
  margin-left: 5px;
}

.timing-canvas {
  width: 100%;
  height: 380px;
}

.readout-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 28px;
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}

.readout {
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 19px;
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.readout > span {
  color: rgba(248, 245, 237, 0.5);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.readout strong {
  font-family: var(--mono);
  font-size: clamp(17px, 1.55vw, 23px);
  font-weight: 400;
  letter-spacing: -0.025em;
}

.readout-accent {
  background: var(--signal);
  color: var(--ink);
}

.readout-accent > span {
  color: rgba(11, 13, 15, 0.62);
}

.model-verdict {
  max-width: 72ch;
  min-height: 3em;
  margin: 28px 0 0;
  color: rgba(248, 245, 237, 0.8);
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.55;
}

.retina-statement {
  border-block: 1px solid var(--line-dark);
  background: var(--signal);
  color: var(--ink);
  padding-block: clamp(76px, 9vw, 144px);
}

.statement-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.65fr);
  align-items: end;
  gap: clamp(40px, 8vw, 136px);
}

.statement-lead {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.2rem, 6.6vw, 7rem);
  font-weight: 600;
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.statement-copy {
  max-width: 41ch;
  margin: 0 0 8px;
  font-size: clamp(18px, 1.6vw, 24px);
  line-height: 1.45;
}

.comparison-panel {
  color: var(--ink);
}

.live-readout {
  color: rgba(11, 13, 15, 0.6);
  font-family: var(--mono);
  font-size: 12px;
}

.comparison-canvas {
  width: 100%;
  height: 330px;
}

.comparison-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(24px, 4vw, 64px);
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--line-light);
}

.comparison-stats > div > span {
  color: rgba(11, 13, 15, 0.55);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.comparison-stats strong {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: clamp(22px, 2.3vw, 34px);
  font-weight: 400;
  letter-spacing: -0.04em;
}

.comparison-stats p {
  max-width: 50ch;
  margin: 9px 0 0;
  color: rgba(11, 13, 15, 0.62);
  font-size: 14px;
  line-height: 1.5;
}

.model-note {
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-light);
  color: rgba(11, 13, 15, 0.58);
  font-size: 12px;
  line-height: 1.55;
}

.comparison-event-stat strong {
  color: var(--signal);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(48px, 6vw, 82px);
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.principle-card {
  min-height: 262px;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 2.6vw, 36px);
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.card-number {
  color: var(--signal);
  font-family: var(--mono);
}

.principle-card h3 {
  margin: auto 0 12px;
  font-size: clamp(19px, 1.6vw, 25px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.principle-card p {
  margin: 0;
  color: rgba(11, 13, 15, 0.62);
  font-size: 14px;
  line-height: 1.55;
}

.argus-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(380px, 0.72fr);
  gap: clamp(52px, 10vw, 160px);
}

.argus-title {
  margin: 0;
  color: var(--signal);
  font-size: clamp(5rem, 10vw, 10.5rem);
  font-style: italic;
  font-weight: 600;
  letter-spacing: -0.075em;
  line-height: 0.78;
}

.argus-summary {
  max-width: 48ch;
  margin: clamp(30px, 4vw, 50px) 0 0;
  color: rgba(248, 245, 237, 0.7);
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.55;
}

.spec-list {
  margin: 5px 0 0;
  border-top: 1px solid var(--line-dark);
}

.spec-list > div {
  display: grid;
  grid-template-columns: minmax(110px, 0.52fr) minmax(0, 1fr);
  align-items: baseline;
  gap: 20px;
  padding-block: 16px;
  border-bottom: 1px solid var(--line-dark);
}

.spec-list dt {
  color: rgba(248, 245, 237, 0.48);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.spec-list dd {
  margin: 0;
  color: rgba(248, 245, 237, 0.82);
  font-family: var(--mono);
  font-size: 12px;
  text-align: right;
}

.spec-list .spec-accent {
  color: var(--signal-bright);
}

.architecture-figure {
  margin: clamp(60px, 8vw, 112px) 0 0;
}

.architecture-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 15px;
  color: rgba(248, 245, 237, 0.52);
}

.architecture-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}

.architecture-flow::after {
  position: absolute;
  top: 112px;
  right: 7%;
  left: 7%;
  height: 1px;
  background: var(--signal);
  content: "";
  opacity: 0.6;
}

.architecture-node {
  position: relative;
  z-index: 1;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  padding: clamp(22px, 2.7vw, 38px);
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  background: var(--ink-raised);
}

.node-index {
  color: rgba(248, 245, 237, 0.62);
  font-family: var(--mono);
  font-size: 11px;
}

.node-signal,
.node-event,
.node-network,
.node-pulse {
  position: relative;
  z-index: 2;
  width: 96px;
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 25px;
  border: 1px solid rgba(248, 245, 237, 0.22);
  background: var(--ink-raised);
}

.node-signal::before,
.node-signal::after {
  position: absolute;
  border: 1px solid var(--signal);
  border-radius: 50%;
  content: "";
}

.node-signal::before {
  width: 28px;
  height: 28px;
}

.node-signal::after {
  width: 54px;
  height: 54px;
  border-color: rgba(253, 63, 3, 0.42);
}

.node-event {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 12px;
  word-spacing: 6px;
}

.node-network {
  gap: 8px;
}

.node-network i {
  width: 7px;
  height: 7px;
  display: block;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(253, 63, 3, 0.11);
}

.node-network i:nth-child(2),
.node-network i:nth-child(4) {
  transform: translateY(15px);
}

.node-pulse::before {
  width: 66px;
  height: 34px;
  border-top: 2px solid var(--signal);
  border-right: 2px solid var(--signal);
  border-bottom: 2px solid var(--signal);
  content: "";
  clip-path: polygon(0 44%, 24% 44%, 24% 0, 56% 0, 56% 100%, 77% 100%, 77% 44%, 100% 44%, 100% 56%, 66% 56%, 66% 100%, 45% 100%, 45% 12%, 35% 12%, 35% 56%, 0 56%);
  background: var(--signal);
}

.architecture-node h3 {
  margin: auto 0 10px;
  font-size: clamp(20px, 1.7vw, 27px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.architecture-node p {
  margin: 0;
  color: rgba(248, 245, 237, 0.55);
  font-size: 14px;
  line-height: 1.5;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}

.application-card {
  min-height: 290px;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 42px);
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  background: var(--ink);
  transition: background 180ms ease;
}

.application-card:not(.application-cta):hover {
  background: var(--ink-soft);
}

.application-tag {
  color: rgba(248, 245, 237, 0.62);
}

.application-card h3 {
  max-width: 18ch;
  margin: auto 0 14px;
  font-size: clamp(22px, 2vw, 31px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.application-card p {
  max-width: 42ch;
  margin: 0;
  color: rgba(248, 245, 237, 0.58);
  font-size: 14px;
  line-height: 1.55;
}

.application-metric {
  margin-top: 24px;
  padding-top: 15px;
  border-top: 1px solid var(--line-dark);
  color: rgba(248, 245, 237, 0.62);
  font-family: var(--mono);
  font-size: 11px;
}

.application-cta {
  background: var(--signal);
  color: var(--ink);
}

.application-cta .application-tag {
  color: rgba(11, 13, 15, 0.6);
}

.application-cta h3 {
  max-width: 12ch;
}

.application-arrow {
  display: block;
  margin-top: 28px;
  font-size: 32px;
  transition: transform 180ms ease;
}

.application-cta:hover .application-arrow {
  transform: translate(5px, -5px);
}

.validation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.validation-card {
  min-height: 245px;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 3vw, 42px);
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.validation-card > span {
  color: var(--signal);
}

.validation-card h3 {
  margin: auto 0 12px;
  font-size: clamp(21px, 1.9vw, 28px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.validation-card p {
  margin: 0;
  color: rgba(11, 13, 15, 0.62);
  font-size: 14px;
}

.reference-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: clamp(28px, 5vw, 72px);
  margin-top: clamp(32px, 4vw, 56px);
  padding: clamp(24px, 3vw, 42px);
  border: 1px solid var(--line-light);
}

.reference-label {
  color: var(--signal);
}

.reference-card p {
  max-width: 68ch;
  margin: 14px 0 0;
  font-size: clamp(17px, 1.3vw, 20px);
  line-height: 1.5;
}

.text-link {
  display: inline-flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 600;
}

.text-link:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.brief-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-top: clamp(32px, 4vw, 54px);
  padding-top: 30px;
  border-top: 1px solid var(--line-light);
}

.brief-row p {
  max-width: 64ch;
  margin: 0;
  color: rgba(11, 13, 15, 0.64);
  font-size: 14px;
}

.contact-section {
  background: var(--ink);
  color: var(--white);
}

.contact-heading h2 {
  max-width: 14ch;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.65fr);
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.contact-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line-dark);
}

.contact-card {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(28px, 3.4vw, 48px);
  background: var(--ink-raised);
}

.contact-card > span {
  color: rgba(248, 245, 237, 0.48);
}

.contact-card h3 {
  margin: auto 0 12px;
  font-size: clamp(24px, 2.4vw, 38px);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1;
}

.contact-card p {
  max-width: 39ch;
  margin: 0 0 25px;
  color: rgba(248, 245, 237, 0.6);
  font-size: 14px;
  line-height: 1.55;
}

.contact-facts {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 44px;
  padding: clamp(28px, 3.8vw, 54px);
  background: var(--signal);
  color: var(--ink);
}

.contact-facts > p {
  max-width: 28ch;
  margin: 0;
  font-size: clamp(21px, 2vw, 31px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.contact-facts dl {
  margin: 0;
  border-top: 1px solid rgba(11, 13, 15, 0.28);
}

.contact-facts dl > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-block: 13px;
  border-bottom: 1px solid rgba(11, 13, 15, 0.28);
}

.contact-facts dt {
  color: rgba(11, 13, 15, 0.62);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-facts dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  text-align: right;
}

.site-footer {
  overflow: hidden;
  border-top: 1px solid var(--line-dark);
  background: var(--ink);
  padding-block: 36px;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
  color: rgba(248, 245, 237, 0.5);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-meta a:hover {
  color: var(--signal);
}

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.74fr);
    gap: 42px;
  }

  .hero h1 {
    font-size: clamp(4rem, 8.7vw, 7rem);
  }

  .hero-canvas-wrap,
  #heroCanvas {
    min-height: 540px;
    height: 540px;
  }

  .principle-grid,
  .architecture-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .architecture-flow::after {
    display: none;
  }

  .application-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 900px) {
  :root {
    --header-height: 66px;
    --shell: min(100% - 40px, 760px);
  }

  .site-nav {
    display: flex;
    gap: 18px;
    margin-left: auto;
  }

  .site-nav a:nth-child(-n + 2) {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding-top: 74px;
  }

  .hero-grid,
  .two-col-heading,
  .statement-grid,
  .argus-intro {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-bottom: 0;
  }

  .hero h1 {
    max-width: 9ch;
    font-size: clamp(4.2rem, 15vw, 7.5rem);
  }

  .hero-figure {
    width: min(100%, 720px);
    margin-top: 12px;
  }

  .hero-canvas-wrap,
  #heroCanvas {
    min-height: 500px;
    height: 500px;
  }

  .hero-metrics {
    margin-top: 52px;
  }

  .two-col-heading,
  .statement-grid {
    gap: 32px;
  }

  .panel-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .model-controls {
    justify-content: flex-start;
  }

  .readout-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .statement-lead {
    max-width: 9ch;
  }

  .statement-copy {
    max-width: 50ch;
  }

  .argus-intro {
    gap: 58px;
  }

  .spec-list {
    max-width: 680px;
  }

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

  .validation-card {
    min-height: 190px;
  }

  .reference-card {
    grid-template-columns: 1fr;
  }

  .text-link {
    max-width: 480px;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 32px);
  }

  .brand-name {
    width: 91px;
  }

  .site-nav a:nth-child(4) {
    display: none;
  }

  .header-cta {
    min-height: 36px;
    padding: 8px 11px;
    font-size: 12px;
  }

  .hero {
    padding-top: 58px;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(3.1rem, 14.5vw, 4.6rem);
    letter-spacing: -0.07em;
    line-height: 0.9;
  }

  .hero-intro {
    width: 100%;
    max-width: 100%;
  }

  .hero-canvas-wrap,
  #heroCanvas {
    min-height: 420px;
    height: 420px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .metric,
  .metric:first-child {
    min-height: 96px;
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .metric:last-child {
    border-bottom: 0;
  }

  .section {
    padding-block: 88px;
  }

  .section-heading h2,
  .contact-heading h2 {
    font-size: clamp(2.7rem, 13vw, 4rem);
  }

  .instrument-panel {
    margin-inline: -16px;
    border-right: 0;
    border-left: 0;
    padding: 24px 16px;
  }

  .control-label {
    width: 100%;
  }

  .pause-button {
    margin-left: 0;
  }

  .timing-canvas {
    height: 430px;
  }

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

  .readout {
    min-height: 88px;
  }

  .retina-statement {
    padding-block: 80px;
  }

  .statement-lead {
    font-size: clamp(3.1rem, 15vw, 4.8rem);
  }

  .comparison-canvas {
    height: 560px;
  }

  .comparison-stats {
    grid-template-columns: 1fr;
  }

  .principle-grid,
  .architecture-flow,
  .application-grid {
    grid-template-columns: 1fr;
  }

  .principle-card {
    min-height: 220px;
  }

  .argus-title {
    font-size: clamp(5rem, 27vw, 7.5rem);
  }

  .spec-list > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .spec-list dd {
    text-align: left;
  }

  .architecture-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .architecture-node {
    min-height: 270px;
  }

  .application-card {
    min-height: 260px;
  }

  .brief-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-options {
    grid-template-columns: 1fr;
  }

  .contact-card {
    min-height: 330px;
  }

  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}