:root {
  --ink: #131210;
  --ink-deep: #090a08;
  --ink-soft: #211f1b;
  --panel: #191714;
  --paper: #e9e3d8;
  --paper-bright: #f4efe7;
  --paper-dim: #c9c1b4;
  --text-dark: #26221d;
  --text-dark-dim: #615a50;
  --text-light: #ebe5da;
  --text-light-dim: #aaa398;
  --orange: #e97721;
  --orange-hot: #ff9138;
  --orange-deep: #8f3f13;
  --olive: #a0aa5d;
  --olive-hot: #c4ca79;
  --olive-deep: #5c6333;
  --line-dark: rgba(235, 229, 218, 0.14);
  --line-paper: rgba(38, 34, 29, 0.16);
  --shell: min(1380px, calc(100vw - 64px));
  --display: "Avenir Next Condensed", "Arial Narrow", "Roboto Condensed", sans-serif;
  --sans: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}

body {
  margin: 0;
  color: var(--text-light);
  background: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  content: "";
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255, 255, 255, 0.012) 4px),
    radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.03) 0 1px, transparent 1.5px);
  background-size: auto, 7px 7px;
  mix-blend-mode: soft-light;
}

a {
  color: inherit;
}

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

h1,
h2,
h3,
p,
figure {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 0.94;
}

h1,
h2 {
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

h1 em,
h2 em {
  color: var(--orange);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  text-transform: none;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--ink);
  background: var(--paper-bright);
  font-weight: 700;
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid var(--line-dark);
  background: rgba(13, 12, 10, 0.95);
  backdrop-filter: blur(16px);
}

.nav-shell {
  display: flex;
  width: var(--shell);
  min-height: 72px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-light);
  text-decoration: none;
}

.brand-mark {
  color: var(--orange);
  font-size: 2.25rem;
  line-height: 1;
  filter: drop-shadow(0 0 14px rgba(233, 119, 33, 0.26));
}

.brand-type {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--display);
  line-height: 1;
  letter-spacing: 0.16em;
}

.brand-type strong {
  font-size: 1.08rem;
}

.brand-type small {
  color: var(--orange);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.desktop-nav a,
.menu-panel a {
  color: var(--text-light-dim);
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-decoration: none;
  text-transform: uppercase;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible,
.menu-panel a:hover,
.menu-panel a:focus-visible {
  color: var(--orange-hot);
}

.menu {
  display: none;
}

.status-rail {
  display: flex;
  min-height: 34px;
  padding: 0.5rem max(32px, calc((100vw - 1380px) / 2));
  align-items: center;
  justify-content: center;
  gap: clamp(0.75rem, 2.4vw, 2.5rem);
  border-bottom: 1px solid rgba(233, 119, 33, 0.22);
  color: var(--text-light-dim);
  background: #100f0d;
  font-family: var(--mono);
  font-size: 0.61rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-rail strong {
  color: var(--orange-hot);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 12px rgba(233, 119, 33, 0.78);
}

.hero {
  position: relative;
  min-height: calc(100vh - 106px);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(10, 9, 8, 0.98), rgba(15, 14, 12, 0.92) 48%, rgba(12, 13, 10, 0.98)),
    repeating-linear-gradient(90deg, transparent 0 99px, rgba(255, 255, 255, 0.02) 100px);
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--orange), var(--olive), transparent);
  opacity: 0.55;
}

.hero-glow {
  position: absolute;
  width: 55vw;
  height: 55vw;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.11;
}

.hero-glow-lush {
  top: -35vw;
  left: 20vw;
  background: var(--orange);
}

.hero-glow-natural {
  right: -24vw;
  bottom: -38vw;
  background: var(--olive);
}

.hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  width: var(--shell);
  min-height: calc(100vh - 106px);
  margin: 0 auto;
  padding: clamp(4rem, 8vh, 7rem) 0;
  align-items: center;
  grid-template-columns: minmax(370px, 0.9fr) minmax(560px, 1.1fr);
  gap: clamp(3rem, 5vw, 5.5rem);
}

.eyebrow {
  display: flex;
  margin-bottom: 1.4rem;
  align-items: center;
  gap: 0.85rem;
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow span {
  display: inline-grid;
  width: 28px;
  height: 28px;
  border: 1px solid currentColor;
  place-items: center;
}

.hero h1 {
  max-width: 690px;
  margin-bottom: 1.75rem;
  font-size: clamp(4.6rem, 6.5vw, 7.6rem);
}

.hero-copy {
  position: relative;
}

.hero-copy::before {
  position: absolute;
  top: 55px;
  bottom: 0;
  left: -32px;
  width: 2px;
  content: "";
  background: linear-gradient(var(--orange), transparent 72%);
}

.hero-lede {
  max-width: 650px;
  margin-bottom: 1rem;
  color: var(--text-light);
  font-size: clamp(1.1rem, 1.55vw, 1.4rem);
  line-height: 1.55;
}

.hero-lede-small {
  color: var(--text-light-dim);
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  margin: 2.1rem 0 1.9rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-width: 230px;
  min-height: 68px;
  padding: 0.8rem 1.1rem;
  border: 1px solid transparent;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  color: var(--text-light);
  font-family: var(--display);
  line-height: 1.1;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.button span {
  margin-bottom: 0.45rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  opacity: 0.78;
}

.button strong {
  font-size: 0.82rem;
  letter-spacing: 0.09em;
}

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

.button-primary {
  border-color: var(--orange);
  background: var(--orange-deep);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.1), 0 12px 30px rgba(0, 0, 0, 0.24);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--orange);
}

.button-secondary {
  border-color: var(--line-dark);
  background: rgba(255, 255, 255, 0.03);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--olive);
  background: rgba(160, 170, 93, 0.1);
}

.promise-list {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem 1rem;
  list-style: none;
}

.promise-list li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--text-light-dim);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.03em;
}

.promise-list li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 6px;
  height: 6px;
  border: 1px solid var(--orange);
  content: "";
  transform: rotate(45deg);
}

.hero-product {
  position: relative;
  width: min(100%, 800px);
  margin: 0;
  justify-self: end;
  perspective: 1400px;
}

.hero-product::before {
  position: absolute;
  z-index: -1;
  right: 4%;
  bottom: -8%;
  left: 4%;
  height: 30%;
  content: "";
  background: radial-gradient(ellipse, rgba(0, 0, 0, 0.75), transparent 68%);
  filter: blur(15px);
}

.product-label {
  display: flex;
  margin-bottom: 0.75rem;
  justify-content: space-between;
  color: var(--text-light-dim);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-label span:last-child {
  color: var(--orange);
}

.product-frame {
  --space-energy: 0.28;
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid rgba(235, 229, 218, 0.2);
  background: #090908;
  box-shadow:
    0 36px 80px rgba(0, 0, 0, 0.48),
    0 0 0 6px rgba(255, 255, 255, 0.018),
    inset 0 1px rgba(255, 255, 255, 0.07);
  transform: rotateY(-2deg) rotateX(1deg);
}

.product-frame picture,
.product-frame img {
  width: 100%;
  height: 100%;
}

.product-frame picture {
  display: block;
}

.product-frame img {
  object-fit: contain;
}

.product-frame::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.07), transparent 16% 76%, rgba(255, 255, 255, 0.025));
}

.spaces-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  filter: drop-shadow(0 0 calc(8px * var(--space-energy)) rgba(255, 145, 56, 0.58));
}

.space-trace,
.stereo-trace {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.space-trace-input {
  stroke: rgba(235, 229, 218, 0.92);
  stroke-width: 2.2;
}

.space-trace-early {
  stroke: rgba(255, 145, 56, 0.9);
  stroke-width: 2.4;
}

.space-trace-late {
  stroke: rgba(196, 202, 121, 0.9);
  stroke-width: 2.5;
}

.space-trace-diffusion {
  stroke: rgba(105, 153, 219, 0.76);
  stroke-width: 3;
}

.stereo-trace {
  stroke: rgba(196, 202, 121, 0.82);
  stroke-width: 2;
  filter: drop-shadow(0 0 5px rgba(196, 202, 121, 0.65));
}

.delay-pulse {
  filter: drop-shadow(0 0 8px currentColor);
}

.delay-pulse-lush {
  color: var(--orange-hot);
  fill: var(--orange-hot);
}

.delay-pulse-natural {
  color: var(--olive-hot);
  fill: var(--olive-hot);
}

.output-energy {
  opacity: 0.7;
}

.output-energy-left {
  fill: var(--orange-hot);
}

.output-energy-right {
  fill: var(--olive-hot);
}

.scroll-reveal {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  transition:
    opacity 620ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.scroll-reveal-left {
  transform: translate3d(-18px, 0, 0);
}

.scroll-reveal-right {
  transform: translate3d(18px, 0, 0);
}

.scroll-reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

.hero-product figcaption {
  display: flex;
  padding: 1rem 0 0;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  color: var(--text-light-dim);
  font-size: 0.78rem;
}

.hero-product figcaption strong {
  flex: 0 0 auto;
  color: var(--text-light);
  font-family: var(--display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fact-bar {
  display: grid;
  border-bottom: 1px solid var(--line-dark);
  background: var(--ink-deep);
  grid-template-columns: repeat(5, 1fr);
}

.fact-bar div {
  display: flex;
  min-height: 118px;
  padding: 1.2rem;
  border-right: 1px solid var(--line-dark);
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
}

.fact-bar div:last-child {
  border-right: 0;
}

.fact-bar strong {
  color: var(--orange);
  font-family: var(--display);
  font-size: 2.6rem;
  line-height: 1;
}

.fact-bar span {
  max-width: 112px;
  color: var(--text-light-dim);
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-transform: uppercase;
}

.section {
  position: relative;
  padding: clamp(5rem, 9vw, 9rem) 0;
}

.section-shell {
  width: var(--shell);
  margin: 0 auto;
}

.section-paper {
  color: var(--text-dark);
  background:
    linear-gradient(rgba(255, 255, 255, 0.2), transparent 35%),
    var(--paper);
}

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

.section-heading {
  max-width: 920px;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.section-heading-split {
  display: grid;
  max-width: none;
  align-items: end;
  grid-template-columns: 1fr 0.75fr;
  gap: 5rem;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(3.6rem, 6vw, 7.2rem);
}

.section-heading > p:last-child {
  max-width: 600px;
  margin-bottom: 0.35rem;
  color: var(--text-dark-dim);
  font-size: 1.05rem;
}

.engine-duo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.engine-card {
  position: relative;
  min-height: 590px;
  padding: clamp(2rem, 4vw, 4rem);
  overflow: hidden;
  border: 1px solid rgba(38, 34, 29, 0.26);
  color: var(--text-light);
  background: #161411;
  box-shadow: 0 18px 50px rgba(29, 25, 20, 0.14);
}

.engine-card::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
}

.engine-card-lush::before {
  background:
    radial-gradient(circle at 75% 20%, rgba(233, 119, 33, 0.3), transparent 28%),
    linear-gradient(135deg, rgba(143, 63, 19, 0.24), transparent 48%);
}

.engine-card-natural::before {
  background:
    radial-gradient(circle at 75% 20%, rgba(160, 170, 93, 0.25), transparent 28%),
    linear-gradient(135deg, rgba(92, 99, 51, 0.22), transparent 48%);
}

.engine-card > * {
  position: relative;
  z-index: 1;
}

.engine-index {
  color: var(--text-light-dim);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.engine-card h3 {
  margin: 6.5rem 0 0.5rem;
  font-size: clamp(4rem, 7vw, 7.5rem);
  letter-spacing: 0.04em;
}

.engine-card-lush h3,
.engine-card-lush .engine-tag {
  color: var(--orange-hot);
}

.engine-card-natural h3,
.engine-card-natural .engine-tag {
  color: var(--olive-hot);
}

.engine-tag {
  margin-bottom: 1.8rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.engine-card > p:not(.engine-tag) {
  max-width: 560px;
  color: var(--text-light-dim);
  font-size: 1rem;
}

.engine-card ul {
  display: grid;
  margin: 2rem 0 0;
  padding: 0;
  gap: 0.65rem;
  list-style: none;
}

.engine-card li {
  padding-top: 0.65rem;
  border-top: 1px solid var(--line-dark);
  font-family: var(--display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.engine-orbit,
.engine-field {
  position: absolute;
  z-index: 0;
  top: 3rem;
  right: 3rem;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(233, 119, 33, 0.25);
  border-radius: 50%;
}

.engine-orbit i {
  position: absolute;
  inset: calc(16px * var(--ring, 1));
  border: 1px solid rgba(233, 119, 33, 0.18);
  border-radius: 50%;
}

.engine-orbit i:nth-child(2) {
  --ring: 2;
}

.engine-orbit i:nth-child(3) {
  --ring: 3;
}

.engine-field {
  border-color: rgba(160, 170, 93, 0.24);
  border-radius: 0;
  transform: perspective(260px) rotateX(62deg) rotateZ(45deg);
}

.engine-field i {
  position: absolute;
  background: rgba(160, 170, 93, 0.18);
}

.engine-field i:nth-child(1),
.engine-field i:nth-child(2) {
  top: 0;
  bottom: 0;
  width: 1px;
}

.engine-field i:nth-child(1) {
  left: 33%;
}

.engine-field i:nth-child(2) {
  left: 66%;
}

.engine-field i:nth-child(3),
.engine-field i:nth-child(4) {
  right: 0;
  left: 0;
  height: 1px;
}

.engine-field i:nth-child(3) {
  top: 33%;
}

.engine-field i:nth-child(4) {
  top: 66%;
}

.engine-card.is-visible .engine-orbit i {
  animation: orbit-settle 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.engine-card.is-visible .engine-orbit i:nth-child(2) {
  animation-delay: 80ms;
}

.engine-card.is-visible .engine-orbit i:nth-child(3) {
  animation-delay: 160ms;
}

.engine-card.is-visible .engine-field {
  animation: field-settle 1050ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.text-link {
  display: inline-flex;
  margin-top: 2.5rem;
  align-items: center;
  gap: 1.2rem;
  color: var(--text-dark);
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-link span {
  color: var(--orange);
  font-size: 1.4rem;
  transition: transform 160ms ease;
}

.text-link:hover span,
.text-link:focus-visible span {
  transform: translateX(5px);
}

.section-delay {
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 45%, rgba(233, 119, 33, 0.13), transparent 32%),
    radial-gradient(circle at 92% 65%, rgba(160, 170, 93, 0.1), transparent 30%),
    #11100e;
}

.delay-shell {
  display: grid;
  align-items: center;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(4rem, 8vw, 9rem);
}

.delay-copy h2 {
  margin-bottom: 2rem;
  font-size: clamp(3.6rem, 5vw, 6.4rem);
}

.delay-copy > p:not(.eyebrow) {
  color: var(--text-light-dim);
  font-size: 1.04rem;
}

.delay-diagram {
  display: grid;
  min-height: 380px;
  padding: clamp(2rem, 4vw, 4rem);
  border: 1px solid var(--line-dark);
  align-items: center;
  background:
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255, 255, 255, 0.025) 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(255, 255, 255, 0.025) 40px),
    rgba(0, 0, 0, 0.22);
  grid-template-columns: auto 1fr auto 1fr auto;
}

.signal-node {
  display: grid;
  width: 138px;
  min-height: 150px;
  padding: 1rem;
  border: 1px solid var(--line-dark);
  align-content: center;
  text-align: center;
  background: #171512;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.04);
}

.signal-node span {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.6rem;
}

.signal-node strong {
  margin: 0.7rem 0;
  font-family: var(--display);
  font-size: 0.9rem;
  letter-spacing: 0.09em;
}

.signal-node small {
  color: var(--text-light-dim);
  font-family: var(--mono);
  font-size: 0.55rem;
}

.signal-node-delay {
  border-color: rgba(233, 119, 33, 0.48);
  box-shadow: inset 0 0 30px rgba(233, 119, 33, 0.07);
}

.signal-node-space {
  border-color: rgba(160, 170, 93, 0.44);
  box-shadow: inset 0 0 30px rgba(160, 170, 93, 0.07);
}

.signal-node-space span {
  color: var(--olive-hot);
}

.signal-line {
  position: relative;
  height: 32px;
  border-top: 1px solid rgba(233, 119, 33, 0.4);
}

.signal-line i {
  position: absolute;
  top: -3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.signal-line i:nth-child(1) {
  left: 18%;
}

.signal-line i:nth-child(2) {
  left: 50%;
  opacity: 0.7;
}

.signal-line i:nth-child(3) {
  left: 82%;
  opacity: 0.4;
}

.signal-line-mixed {
  border-top-color: rgba(160, 170, 93, 0.4);
}

.signal-line-mixed i {
  background: var(--olive);
}

.delay-diagram.is-visible .signal-line i {
  animation: signal-arrival 850ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.delay-diagram.is-visible .signal-line i:nth-child(2) {
  animation-delay: 90ms;
}

.delay-diagram.is-visible .signal-line i:nth-child(3) {
  animation-delay: 180ms;
}

.section-controls {
  border-top: 1px solid var(--line-paper);
}

.section-controls .section-heading > p:last-child {
  margin-top: 1.5rem;
}

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

.control-grid article {
  min-height: 250px;
  padding: clamp(1.5rem, 3vw, 3rem);
  border-right: 1px solid var(--line-paper);
  border-bottom: 1px solid var(--line-paper);
}

.control-grid span {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.65rem;
}

.control-grid h3 {
  margin: 3rem 0 1rem;
  font-size: 1.5rem;
  letter-spacing: 0.08em;
}

.control-grid p {
  margin-bottom: 0;
  color: var(--text-dark-dim);
}

.section-engineering {
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(233, 119, 33, 0.06), transparent 34%),
    var(--ink-soft);
}

.engineering-shell {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(4rem, 8vw, 9rem);
}

.engineering-shell h2 {
  margin-bottom: 2rem;
  font-size: clamp(3.8rem, 6vw, 7.5rem);
}

.engineering-lede {
  max-width: 560px;
  color: var(--text-light-dim);
  font-size: 1.1rem;
}

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

.engineering-grid article {
  min-height: 290px;
  padding: clamp(1.5rem, 3vw, 2.75rem);
  border: 1px solid var(--line-dark);
  border-right: 0;
  border-bottom: 0;
}

.engineering-grid article:nth-child(even) {
  border-right: 1px solid var(--line-dark);
}

.engineering-grid article:nth-last-child(-n + 2) {
  border-bottom: 1px solid var(--line-dark);
}

.engineering-grid span {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}

.engineering-grid h3 {
  margin: 2.1rem 0 1rem;
  font-size: 1.55rem;
  line-height: 1.08;
}

.engineering-grid p {
  margin-bottom: 0;
  color: var(--text-light-dim);
  font-size: 0.9rem;
}

.boundary-note {
  grid-column: 1 / -1;
  display: grid;
  margin-top: 2rem;
  padding: 1.4rem 1.6rem;
  border-left: 3px solid var(--olive);
  align-items: center;
  background: rgba(0, 0, 0, 0.22);
  grid-template-columns: 0.45fr 1fr auto;
  gap: 2rem;
}

.boundary-note strong {
  color: var(--olive-hot);
  font-family: var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.boundary-note p {
  margin: 0;
  color: var(--text-light-dim);
  font-size: 0.82rem;
}

.boundary-note a {
  color: var(--text-light);
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.boundary-note a span {
  color: var(--orange);
}

.section-close {
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(circle at 32% 50%, rgba(233, 119, 33, 0.13), transparent 32%),
    radial-gradient(circle at 68% 50%, rgba(160, 170, 93, 0.1), transparent 32%),
    var(--ink-deep);
}

.close-shell {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.close-shell h2 {
  max-width: 1100px;
  margin-bottom: 1.6rem;
  font-size: clamp(4rem, 7vw, 8rem);
}

.close-shell > p:not(.eyebrow) {
  max-width: 680px;
  margin-bottom: 2.3rem;
  color: var(--text-light-dim);
}

.site-footer {
  border-top: 1px solid var(--line-dark);
  background: #0b0a09;
}

.footer-shell {
  display: grid;
  width: var(--shell);
  margin: 0 auto;
  padding: 4.5rem 0;
  grid-template-columns: 0.8fr 1.45fr 0.55fr;
  gap: clamp(2rem, 6vw, 6rem);
}

.footer-brand p {
  margin: 1.2rem 0 0.45rem;
  color: var(--text-light-dim);
  font-size: 0.82rem;
}

.maker-line {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.footer-note p {
  color: var(--text-light-dim);
  font-size: 0.75rem;
}

.footer-note strong {
  color: var(--text-light);
}

.footer-shell nav {
  display: grid;
  align-content: start;
  gap: 0.65rem;
}

.footer-shell nav a {
  color: var(--text-light-dim);
  font-family: var(--display);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.footer-shell nav a:hover,
.footer-shell nav a:focus-visible {
  color: var(--orange);
}

.footer-bottom {
  display: flex;
  min-height: 48px;
  padding: 0 max(32px, calc((100vw - 1380px) / 2));
  border-top: 1px solid var(--line-dark);
  align-items: center;
  justify-content: space-between;
  color: #6f6961;
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@keyframes orbit-settle {
  0% {
    opacity: 0;
    transform: scale(0.82);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes field-settle {
  0% {
    opacity: 0;
    transform: perspective(260px) rotateX(62deg) rotateZ(38deg) scale(0.88);
  }

  100% {
    opacity: 1;
    transform: perspective(260px) rotateX(62deg) rotateZ(45deg) scale(1);
  }
}

@keyframes signal-arrival {
  0% {
    opacity: 0;
    transform: translateX(-14px) scale(0.55);
  }

  55% {
    opacity: 1;
    transform: translateX(0) scale(1.45);
  }

  100% {
    transform: translateX(0) scale(1);
  }
}

.subpage-hero {
  position: relative;
  min-height: 65vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 40%, rgba(233, 119, 33, 0.16), transparent 28%),
    radial-gradient(circle at 92% 60%, rgba(160, 170, 93, 0.12), transparent 24%),
    repeating-linear-gradient(90deg, transparent 0 119px, rgba(255, 255, 255, 0.018) 120px),
    var(--ink-deep);
}

.subpage-hero::after {
  position: absolute;
  right: 7vw;
  bottom: -25vw;
  width: 48vw;
  height: 48vw;
  border: 1px solid rgba(233, 119, 33, 0.18);
  border-radius: 50%;
  content: "";
  box-shadow:
    0 0 0 4vw rgba(233, 119, 33, 0.02),
    0 0 0 8vw rgba(160, 170, 93, 0.018),
    0 0 0 12vw rgba(255, 255, 255, 0.008);
}

.subpage-shell {
  position: relative;
  z-index: 1;
  display: flex;
  width: var(--shell);
  min-height: 65vh;
  margin: 0 auto;
  padding: 6rem 0;
  justify-content: center;
  flex-direction: column;
}

.subpage-shell h1 {
  max-width: 1080px;
  margin-bottom: 2rem;
  font-size: clamp(4.8rem, 8vw, 9rem);
}

.subpage-shell h1 strong {
  color: var(--olive-hot);
}

.subpage-shell > p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--text-light-dim);
  font-size: 1.2rem;
}

.engine-detail-section .section-shell {
  display: grid;
  gap: 2rem;
}

.engine-detail {
  position: relative;
  display: grid;
  min-height: 680px;
  padding: clamp(2rem, 5vw, 5rem);
  overflow: hidden;
  color: var(--text-light);
  background: #171512;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(3rem, 8vw, 8rem);
}

.engine-detail::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
}

.engine-detail-lush::before {
  background: radial-gradient(circle at 14% 38%, rgba(233, 119, 33, 0.28), transparent 27%);
}

.engine-detail-natural::before {
  background: radial-gradient(circle at 14% 38%, rgba(160, 170, 93, 0.24), transparent 27%);
}

.engine-detail > * {
  position: relative;
  z-index: 1;
}

.engine-detail-number,
.engine-kicker {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.engine-detail-number {
  color: var(--text-light-dim);
}

.engine-kicker {
  margin: 5rem 0 1rem;
  color: var(--orange);
}

.engine-detail-natural .engine-kicker {
  color: var(--olive-hot);
}

.engine-detail h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(5rem, 9vw, 10rem);
  letter-spacing: 0.03em;
}

.engine-detail-lush h2 {
  color: var(--orange-hot);
}

.engine-detail-natural h2 {
  color: var(--olive-hot);
}

.engine-detail-lede {
  max-width: 460px;
  color: var(--text-light-dim);
  font-size: 1.05rem;
}

.engine-detail-body {
  display: grid;
  padding-top: 6rem;
  align-content: start;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.engine-detail-body h3 {
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.engine-detail-body p {
  color: var(--text-light-dim);
}

.engine-detail-body dl {
  display: grid;
  margin: 0;
  grid-template-columns: repeat(2, 1fr);
}

.engine-detail-body dl div {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line-dark);
  border-right: 0;
  border-bottom: 0;
}

.engine-detail-body dl div:nth-child(even) {
  border-right: 1px solid var(--line-dark);
}

.engine-detail-body dl div:nth-last-child(-n + 2) {
  border-bottom: 1px solid var(--line-dark);
}

.engine-detail-body dt {
  color: var(--orange);
  font-family: var(--display);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.engine-detail-natural .engine-detail-body dt {
  color: var(--olive-hot);
}

.engine-detail-body dd {
  margin: 0.55rem 0 0;
  color: var(--text-light-dim);
  font-size: 0.75rem;
}

.engine-boundary {
  position: absolute;
  right: clamp(2rem, 5vw, 5rem);
  bottom: clamp(2rem, 4vw, 4rem);
  left: clamp(2rem, 5vw, 5rem);
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-dark);
  color: var(--text-light-dim);
  font-size: 0.78rem;
}

.engine-boundary strong {
  color: var(--text-light);
}

.comparison-table {
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}

.comparison-row {
  display: grid;
  min-height: 112px;
  border-bottom: 1px solid var(--line-dark);
  grid-template-columns: 0.3fr 1fr 1fr;
}

.comparison-row > * {
  display: flex;
  margin: 0;
  padding: 1.5rem 2rem;
  border-right: 1px solid var(--line-dark);
  align-items: center;
}

.comparison-head {
  min-height: 52px;
  color: var(--text-light-dim);
  background: rgba(255, 255, 255, 0.025);
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.1em;
}

.comparison-row strong {
  color: var(--orange);
  font-family: var(--display);
  font-size: 0.85rem;
  letter-spacing: 0.09em;
}

.comparison-row span:not([role="columnheader"]) {
  color: var(--text-light-dim);
  font-size: 0.88rem;
}

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

.proof-card {
  min-height: 390px;
  padding: clamp(1.5rem, 3vw, 3rem);
  border-right: 1px solid var(--line-paper);
  border-bottom: 1px solid var(--line-paper);
}

.proof-id {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.proof-card h3 {
  margin: 3rem 0 1.2rem;
  font-size: 1.75rem;
  line-height: 1.08;
}

.proof-card > p:not(.proof-consequence) {
  color: var(--text-dark-dim);
  font-size: 0.9rem;
}

.proof-consequence {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-paper);
  font-size: 0.8rem;
}

.proof-card-boundary {
  color: var(--text-light);
  background: var(--ink-soft);
}

.proof-card-boundary > p:not(.proof-consequence) {
  color: var(--text-light-dim);
}

.proof-card-boundary .proof-consequence {
  border-top-color: var(--line-dark);
}

.method-steps {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
  list-style: none;
}

.method-steps li {
  display: grid;
  min-height: 150px;
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--line-dark);
  align-items: center;
  grid-template-columns: 0.18fr 1fr;
}

.method-steps li > span {
  color: var(--orange);
  font-family: var(--display);
  font-size: 2.5rem;
}

.method-steps h3 {
  margin-bottom: 0.45rem;
  font-size: 1.35rem;
  letter-spacing: 0.07em;
}

.method-steps p {
  max-width: 820px;
  margin-bottom: 0;
  color: var(--text-light-dim);
}

.support-shell {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.2rem;
}

.contact-card,
.status-card {
  padding: clamp(2rem, 5vw, 5rem);
  border: 1px solid var(--line-paper);
}

.contact-card {
  min-height: 500px;
  color: var(--text-light);
  background:
    radial-gradient(circle at 85% 25%, rgba(233, 119, 33, 0.28), transparent 26%),
    var(--ink-soft);
}

.contact-label {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}

.contact-card h2 {
  margin: 7rem 0 1.5rem;
  font-size: clamp(2rem, 4vw, 4.5rem);
  text-transform: none;
}

.contact-card p {
  max-width: 620px;
  color: var(--text-light-dim);
}

.contact-card .button {
  margin-top: 1rem;
}

.status-card dl {
  margin: 3rem 0 0;
}

.status-card dl div {
  display: grid;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line-paper);
  grid-template-columns: 0.5fr 1fr;
  gap: 1rem;
}

.status-card dt {
  font-family: var(--display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-card dd {
  margin: 0;
  color: var(--text-dark-dim);
  font-size: 0.82rem;
}

.topic-grid {
  display: grid;
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
  grid-template-columns: repeat(2, 1fr);
}

.topic-grid article {
  min-height: 270px;
  padding: clamp(1.5rem, 3vw, 3rem);
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.topic-grid span {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.topic-grid h3 {
  margin: 3rem 0 1rem;
  font-size: 1.4rem;
  letter-spacing: 0.07em;
}

.topic-grid p {
  margin: 0;
  color: var(--text-light-dim);
}

@media (max-width: 1180px) {
  :root {
    --shell: min(100% - 44px, 1180px);
  }

  .desktop-nav {
    gap: 1rem;
  }

  .hero-shell {
    grid-template-columns: 0.78fr 1.22fr;
    gap: 3rem;
  }

  .hero h1 {
    font-size: clamp(4rem, 7vw, 6rem);
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .delay-diagram {
    padding: 2rem 1.2rem;
  }

  .signal-node {
    width: 110px;
  }
}

@media (max-width: 940px) {
  .desktop-nav {
    display: none;
  }

  .menu {
    position: relative;
    display: block;
  }

  .menu summary {
    display: flex;
    min-width: 90px;
    min-height: 42px;
    border: 1px solid var(--line-dark);
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    cursor: pointer;
    font-family: var(--display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    list-style: none;
    text-transform: uppercase;
  }

  .menu summary::-webkit-details-marker {
    display: none;
  }

  .menu summary i,
  .menu summary i::before,
  .menu summary i::after {
    display: block;
    width: 13px;
    height: 1px;
    content: "";
    background: var(--orange);
  }

  .menu summary i {
    position: relative;
  }

  .menu summary i::before {
    position: absolute;
    top: -4px;
  }

  .menu summary i::after {
    position: absolute;
    top: 4px;
  }

  .menu-panel {
    position: absolute;
    top: 50px;
    right: 0;
    display: grid;
    width: min(310px, calc(100vw - 44px));
    padding: 1.2rem;
    border: 1px solid var(--line-dark);
    background: #11100e;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.38);
    gap: 0.25rem;
  }

  .menu-panel a {
    padding: 0.85rem;
    border-bottom: 1px solid var(--line-dark);
  }

  .status-rail span:not(.status-dot):not(:nth-of-type(1)):not(:last-child),
  .status-rail strong + span {
    display: none;
  }

  .hero-shell {
    min-height: auto;
    padding: 5rem 0;
    grid-template-columns: 1fr;
  }

  .hero-product {
    width: min(100%, 820px);
    justify-self: center;
    grid-row: 1;
  }

  .hero-product figcaption {
    flex-direction: column;
    gap: 0.3rem;
  }

  .hero-copy::before {
    display: none;
  }

  .fact-bar {
    grid-template-columns: repeat(5, minmax(130px, 1fr));
    overflow-x: auto;
  }

  .section-heading-split,
  .engine-duo,
  .delay-shell,
  .engineering-shell,
  .support-shell {
    grid-template-columns: 1fr;
  }

  .section-heading-split {
    gap: 2rem;
  }

  .engine-card {
    min-height: 530px;
  }

  .delay-diagram {
    min-height: 320px;
  }

  .boundary-note {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .engine-detail {
    min-height: 890px;
    grid-template-columns: 1fr;
    gap: 0;
  }

  .engine-detail-body {
    padding-top: 1rem;
  }

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

  .footer-shell {
    grid-template-columns: 1fr 1fr;
  }

  .footer-shell nav {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, auto);
  }
}

@media (max-width: 660px) {
  :root {
    --shell: calc(100% - 28px);
  }

  html {
    scroll-padding-top: 84px;
  }

  .nav-shell {
    min-height: 62px;
  }

  .brand-type strong {
    font-size: 0.95rem;
  }

  .brand-type small {
    font-size: 0.62rem;
  }

  .brand-mark {
    font-size: 1.8rem;
  }

  .status-rail {
    min-height: 31px;
    padding: 0.45rem 14px;
    gap: 0.65rem;
    font-size: 0.53rem;
  }

  .hero h1,
  .subpage-shell h1 {
    font-size: clamp(3.5rem, 18vw, 5.4rem);
  }

  .hero-shell {
    padding: 3.5rem 0;
  }

  .hero-product {
    margin-right: -8px;
    margin-left: -8px;
  }

  .product-frame {
    transform: none;
  }

  .hero-lede {
    font-size: 1rem;
  }

  .promise-list {
    grid-template-columns: 1fr;
  }

  .fact-bar div {
    min-height: 92px;
  }

  .section {
    padding: 4.5rem 0;
  }

  .section-heading h2,
  .delay-copy h2,
  .engineering-shell h2,
  .close-shell h2 {
    font-size: clamp(3.1rem, 15vw, 5.2rem);
  }

  .engine-card {
    min-height: 570px;
    padding: 1.5rem;
  }

  .engine-card h3 {
    margin-top: 8.5rem;
    font-size: 4.2rem;
  }

  .engine-orbit,
  .engine-field {
    top: 2.5rem;
    right: 1.5rem;
    width: 135px;
    height: 135px;
  }

  .delay-diagram {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .signal-node {
    width: 100%;
    min-height: 105px;
  }

  .signal-line {
    width: 32px;
    height: 70px;
    margin: 0 auto;
    border-top: 0;
    border-left: 1px solid rgba(233, 119, 33, 0.4);
  }

  .signal-line i {
    top: auto;
    left: -3px !important;
  }

  .signal-line i:nth-child(1) {
    top: 18%;
  }

  .signal-line i:nth-child(2) {
    top: 50%;
  }

  .signal-line i:nth-child(3) {
    top: 82%;
  }

  .control-grid,
  .engineering-grid,
  .proof-grid,
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .engineering-grid article,
  .engineering-grid article:nth-child(even),
  .engineering-grid article:nth-last-child(-n + 2) {
    min-height: 240px;
    border: 1px solid var(--line-dark);
    border-bottom: 0;
  }

  .engineering-grid article:last-child {
    border-bottom: 1px solid var(--line-dark);
  }

  .subpage-hero,
  .subpage-shell {
    min-height: 72vh;
  }

  .subpage-shell {
    padding: 4.5rem 0;
  }

  .subpage-shell > p:last-child {
    font-size: 1rem;
  }

  .engine-detail {
    min-height: 1100px;
    padding: 1.5rem;
  }

  .engine-detail h2 {
    font-size: 4.8rem;
  }

  .engine-kicker {
    margin-top: 3rem;
  }

  .engine-detail-body dl {
    grid-template-columns: 1fr;
  }

  .engine-detail-body dl div,
  .engine-detail-body dl div:nth-child(even),
  .engine-detail-body dl div:nth-last-child(-n + 2) {
    border: 1px solid var(--line-dark);
    border-bottom: 0;
  }

  .engine-detail-body dl div:last-child {
    border-bottom: 1px solid var(--line-dark);
  }

  .engine-boundary {
    right: 1.5rem;
    bottom: 1.5rem;
    left: 1.5rem;
  }

  .comparison-row {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .comparison-row > * {
    padding: 1rem;
    border-right: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
  }

  .comparison-row > *:last-child {
    border-bottom: 0;
  }

  .comparison-head {
    display: none;
  }

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

  .method-steps li {
    grid-template-columns: 70px 1fr;
  }

  .contact-card,
  .status-card {
    padding: 1.5rem;
  }

  .contact-card h2 {
    margin-top: 6rem;
    font-size: 1.65rem;
  }

  .status-card dl div {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }

  .footer-shell {
    padding: 3.5rem 0;
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-shell nav {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    min-height: 70px;
    padding: 0 14px;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    gap: 0.35rem;
  }
}

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

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

  .scroll-reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}