@font-face {
  font-family: "Instrument Serif";
  src: url("./assets/fonts/instrument-serif-400-normal.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Serif";
  src: url("./assets/fonts/instrument-serif-400-italic.woff2") format("woff2");
  font-style: italic;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Hanken Grotesk";
  src: url("./assets/fonts/hanken-grotesk-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Hanken Grotesk";
  src: url("./assets/fonts/hanken-grotesk-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Hanken Grotesk";
  src: url("./assets/fonts/hanken-grotesk-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Geist Mono";
  src: url("./assets/fonts/geist-mono-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Geist Mono";
  src: url("./assets/fonts/geist-mono-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  --ink: #0a0d0b;
  --ink-soft: #121714;
  --paper: #f1f0e8;
  --paper-bright: #fbfaf4;
  --paper-muted: #ddddd2;
  --line: rgba(10, 13, 11, 0.16);
  --line-dark: rgba(241, 240, 232, 0.15);
  --muted: #666b64;
  --green: #33f07a;
  --green-deep: #12a552;
  --green-wash: #d6ffe3;
  --amber: #f7c852;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "Geist Mono", "SFMono-Regular", Menlo, monospace;
  --page-pad: clamp(1.25rem, 4vw, 4.75rem);
  --radius: 1.3rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

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

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

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

button,
input {
  font: inherit;
}

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

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--green);
  color: var(--ink);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.scroll-meter {
  position: fixed;
  inset: 0 0 auto;
  height: 2px;
  z-index: 80;
  background: transparent;
}

.scroll-meter span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--green);
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 50;
  min-height: 6.5rem;
  padding: 1.4rem var(--page-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  color: var(--paper-bright);
  transition: background 200ms ease, min-height 200ms ease, box-shadow 200ms ease;
}

.site-header.is-sticky {
  position: fixed;
  min-height: 4.8rem;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
  background: rgba(10, 13, 11, 0.9);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-cube {
  width: 2.65rem;
  height: 2.65rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 0.68rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.12), transparent 52%),
    var(--ink-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 0 2rem rgba(51, 240, 122, 0.07);
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-cube sup,
.closing-mark sup,
.receipt-logo sup {
  color: var(--green);
  font-size: 0.56em;
}

.wordmark {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.05em;
}

.wordmark span {
  color: var(--green);
}

.spoken {
  padding-left: 0.8rem;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.48);
  font: 0.63rem/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 2.6vw, 2.8rem);
}

.site-nav a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 150ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: white;
}

.site-nav .nav-cta {
  padding: 0.72rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.23);
  border-radius: 999px;
  color: white;
}

.site-nav .nav-cta:hover {
  color: var(--ink);
  background: var(--green);
  border-color: var(--green);
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  min-height: min(58rem, 100svh);
  padding: clamp(8.5rem, 14vh, 11rem) var(--page-pad) clamp(5rem, 9vh, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(31rem, 0.78fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 7rem);
  background:
    radial-gradient(circle at 73% 36%, rgba(51, 240, 122, 0.075), transparent 24rem),
    var(--ink);
  color: var(--paper-bright);
  overflow: hidden;
}

.hero-grid,
.closing-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 4rem 4rem;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 90%);
}

.hero-orbit {
  position: absolute;
  width: 31rem;
  aspect-ratio: 1;
  right: 1vw;
  top: 18%;
  border: 1px solid rgba(51, 240, 122, 0.1);
  border-radius: 50%;
  pointer-events: none;
}

.orbit-two {
  width: 42rem;
  right: -5rem;
  top: 7%;
  border-color: rgba(255, 255, 255, 0.05);
}

.hero-copy,
.hero-proof {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--green);
  font: 500 clamp(0.65rem, 1vw, 0.74rem)/1 var(--mono);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 1.7rem;
  height: 1px;
  background: currentColor;
}

.eyebrow-dark {
  color: var(--green-deep);
}

.hero h1,
.section-heading h2,
.evidence-copy h2,
.closing-copy h2 {
  margin: 0;
  font: 400 clamp(4rem, 7.2vw, 7.8rem)/0.87 var(--serif);
  letter-spacing: -0.045em;
}

.hero h1 em,
.section-heading h2 em,
.evidence-copy h2 em,
.closing-copy h2 em {
  color: var(--green);
  font-weight: 400;
}

.hero-lede {
  max-width: 36rem;
  margin: 2rem 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.62;
}

.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  align-items: center;
  gap: 1.7rem;
  flex-wrap: wrap;
}

.button {
  min-height: 3.55rem;
  padding: 0 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1.7rem;
  border-radius: 0.25rem;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

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

.button-primary {
  color: var(--ink);
  background: var(--green);
  box-shadow: 0 0.8rem 2.6rem rgba(51, 240, 122, 0.14);
}

.button-primary:hover {
  background: #68ff9d;
}

.text-link {
  padding: 0.5rem 0;
  color: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

.candidate-note {
  margin: 1.8rem 0 0;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: rgba(255, 255, 255, 0.38);
  font: 0.65rem/1.4 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.pulse-dot {
  width: 0.43rem;
  height: 0.43rem;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 0 rgba(247, 200, 82, 0.5);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 0.5rem rgba(247, 200, 82, 0); }
  100% { box-shadow: 0 0 0 0 rgba(247, 200, 82, 0); }
}

.proof-window {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  background: #111713;
  box-shadow: 0 3rem 7rem rgba(0, 0, 0, 0.46), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
  transform: perspective(70rem) rotateY(-4deg) rotateX(1deg);
  transform-origin: center left;
}

.proof-window::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.05), transparent 24%);
}

.window-bar {
  min-height: 3rem;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.4);
  font: 0.57rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.window-dots {
  display: flex;
  gap: 0.35rem;
}

.window-dots i {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.local-pill {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--green);
}

.local-pill i {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0.8rem var(--green);
}

.proof-body {
  padding: clamp(1rem, 2.3vw, 1.6rem);
}

.repo-row,
.proof-footer,
.verdict-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.repo-row strong {
  display: block;
  margin-top: 0.3rem;
  color: white;
  font-size: 0.98rem;
}

.repo-row code,
.digest {
  color: rgba(255, 255, 255, 0.35);
  font: 0.62rem/1 var(--mono);
}

.micro-label {
  color: rgba(255, 255, 255, 0.38);
  font: 0.59rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.claim-switcher {
  margin: 1.4rem 0 0;
  padding: 0.25rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.25rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
}

.claim-switcher button {
  padding: 0.65rem 0.3rem;
  border: 0;
  border-radius: 0.32rem;
  color: rgba(255, 255, 255, 0.42);
  background: transparent;
  font-size: 0.69rem;
  font-weight: 600;
  cursor: pointer;
}

.claim-switcher button:hover,
.claim-switcher button:focus-visible {
  color: white;
}

.claim-switcher button.is-active {
  color: var(--ink);
  background: var(--paper-bright);
}

.verdict-card {
  margin-top: 0.8rem;
  padding: 1.3rem;
  border: 1px solid rgba(51, 240, 122, 0.25);
  border-radius: 0.7rem;
  background:
    linear-gradient(135deg, rgba(51, 240, 122, 0.08), transparent 55%),
    rgba(255, 255, 255, 0.025);
}

.verdict-badge {
  padding: 0.33rem 0.55rem;
  border: 1px solid rgba(51, 240, 122, 0.35);
  border-radius: 0.25rem;
  color: var(--green);
  background: rgba(51, 240, 122, 0.08);
  font: 500 0.62rem/1 var(--mono);
}

.verdict-badge.is-provisional {
  color: var(--amber);
  border-color: rgba(247, 200, 82, 0.35);
  background: rgba(247, 200, 82, 0.08);
}

.verdict-badge.is-unverifiable {
  color: #ced3cf;
  border-color: rgba(206, 211, 207, 0.25);
  background: rgba(206, 211, 207, 0.06);
}

.verdict-card h2 {
  margin: 1rem 0 0.4rem;
  color: white;
  font: 400 clamp(1.55rem, 2.4vw, 2.05rem)/1.08 var(--serif);
}

.verdict-card p {
  min-height: 2.7rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.78rem;
  line-height: 1.55;
}

.evidence-chain {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  align-items: center;
  gap: 0.45rem;
}

.evidence-chain i {
  height: 1px;
  background: rgba(51, 240, 122, 0.32);
}

.chain-node {
  padding: 0.38rem 0.48rem;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 0.28rem;
  color: rgba(255, 255, 255, 0.38);
  font: 0.52rem/1 var(--mono);
  white-space: nowrap;
}

.chain-node.is-solid {
  color: var(--green);
  border-color: rgba(51, 240, 122, 0.22);
}

.proof-footer {
  margin-top: 0.85rem;
  padding: 0.35rem 0.2rem 0;
  color: rgba(255, 255, 255, 0.34);
  font: 0.54rem/1 var(--mono);
  text-transform: uppercase;
}

.proof-footer b {
  color: var(--green);
}

.proof-caption {
  max-width: 25rem;
  margin: 1.4rem 0 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.proof-caption span {
  color: var(--green);
  font: 0.62rem/1.45 var(--mono);
}

.proof-caption p {
  margin: 0;
  font-size: 0.74rem;
  line-height: 1.5;
}

.flight-lab {
  position: relative;
  padding: clamp(5rem, 9vw, 8rem) var(--page-pad);
  color: var(--paper-bright);
  background:
    radial-gradient(circle at 76% 42%, rgba(51, 240, 122, 0.1), transparent 25rem),
    #0c110e;
  overflow: hidden;
}

.flight-lab::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.027) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.027) 1px, transparent 1px);
  background-size: 3.5rem 3.5rem;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

.flight-lab-head,
.flight-specimen {
  position: relative;
  z-index: 1;
  width: min(100%, 96rem);
  margin-inline: auto;
}

.flight-lab-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.55fr);
  align-items: end;
  gap: clamp(3rem, 8vw, 9rem);
}

.flight-lab-head h2 {
  margin: 0;
  font: 400 clamp(3.7rem, 7vw, 7.2rem)/0.9 var(--serif);
  letter-spacing: -0.045em;
}

.flight-lab-head h2 em {
  color: var(--green);
  font-weight: 400;
}

.flight-lab-head > p {
  margin: 0 0 0.5rem;
  color: rgba(255, 255, 255, 0.53);
  font-size: 0.98rem;
  line-height: 1.72;
}

.flight-specimen {
  margin-top: clamp(3.5rem, 7vw, 6rem);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(5, 9, 7, 0.74);
  box-shadow: 0 3rem 8rem rgba(0, 0, 0, 0.32);
}

.flight-telemetry {
  min-height: 3.1rem;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  color: rgba(255, 255, 255, 0.4);
  font: 0.58rem/1 var(--mono);
  letter-spacing: 0.12em;
}

.telemetry-live {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--green);
}

.telemetry-live i {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 1rem rgba(51, 240, 122, 0.8);
}

.aircraft-stage {
  position: relative;
  min-height: clamp(18rem, 34vw, 31rem);
  display: grid;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  background:
    linear-gradient(180deg, rgba(51, 240, 122, 0.035), transparent 70%),
    radial-gradient(circle at 70% 38%, rgba(51, 240, 122, 0.06), transparent 28%);
}

.aircraft-stage svg {
  width: 100%;
  min-width: 56rem;
  overflow: visible;
}

.flight-path,
.flight-path-echo {
  fill: none;
  stroke: rgba(51, 240, 122, 0.26);
  stroke-width: 1.2;
  stroke-dasharray: 8 14;
  animation: flight-dash 18s linear infinite;
}

.flight-path-echo {
  stroke: rgba(255, 255, 255, 0.08);
  animation-direction: reverse;
}

.aircraft-rig {
  transform-box: fill-box;
  transform-origin: center;
  animation: aircraft-cruise 11s cubic-bezier(0.45, 0, 0.25, 1) infinite;
}

.aircraft-body,
.aircraft-wing,
.aircraft-tail,
.aircraft-nose {
  fill: #dfe5df;
  stroke: rgba(255, 255, 255, 0.72);
  stroke-width: 1;
}

.aircraft-wing-back {
  fill: #9da69f;
  opacity: 0.82;
}

.aircraft-engine path {
  fill: #7d8981;
  stroke: rgba(255, 255, 255, 0.62);
  stroke-width: 1;
}

.aircraft-engine ellipse {
  fill: #111713;
  stroke: var(--green);
  stroke-width: 1.5;
}

.aircraft-windows circle { fill: #0c110e; }

.aircraft-trail {
  fill: none;
  stroke: var(--green);
  stroke-width: 1.2;
  stroke-dasharray: 2 8;
  filter: drop-shadow(0 0 5px rgba(51, 240, 122, 0.7));
}

.aircraft-caption {
  position: absolute;
  left: 1.2rem;
  bottom: 1.2rem;
  display: grid;
  gap: 0.35rem;
}

.aircraft-caption span {
  color: var(--green);
  font: 0.56rem/1 var(--mono);
  letter-spacing: 0.14em;
}

.aircraft-caption strong {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.76rem;
  font-weight: 500;
}

.engine-deck {
  display: grid;
  grid-template-columns: minmax(17rem, 0.42fr) minmax(0, 1fr);
}

.engine-copy {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid rgba(255, 255, 255, 0.11);
}

.engine-copy .micro-label { color: var(--green); }

.engine-copy h3 {
  margin: 1.1rem 0 0;
  font: 400 clamp(2.1rem, 4vw, 3.8rem)/0.95 var(--serif);
}

.engine-copy > p:not(.micro-label) {
  margin: 1.2rem 0 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.82rem;
  line-height: 1.65;
}

.engine-stage-key {
  margin-top: 2rem;
  display: grid;
  border-top: 1px solid rgba(255, 255, 255, 0.11);
}

.engine-stage-key span {
  padding: 0.72rem 0;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.72rem;
}

.engine-stage-key b {
  color: var(--green);
  font: 0.56rem/1 var(--mono);
}

.engine-visual {
  position: relative;
  min-height: 24rem;
  padding: clamp(1rem, 3vw, 2.5rem);
  display: grid;
  align-items: center;
  cursor: crosshair;
  overflow: hidden;
}

.engine-visual svg { width: 100%; overflow: visible; }

.engine-shell {
  fill: url(#nacelle);
  stroke: rgba(255, 255, 255, 0.54);
  stroke-width: 1;
}

.engine-inner {
  fill: #0a0d0b;
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 1;
}

.air-streams path {
  fill: none;
  stroke: rgba(51, 240, 122, 0.38);
  stroke-width: 1;
  stroke-dasharray: 4 18;
  animation: engine-airflow 1.25s linear infinite;
}

.fan-ring {
  fill: #101612;
  stroke: rgba(255, 255, 255, 0.55);
  stroke-width: 3;
}

.fan-blades {
  transform-box: fill-box;
  transform-origin: center;
  animation: fan-turn 1.8s linear infinite;
}

.fan-blades path {
  fill: #aeb8b0;
  stroke: rgba(255, 255, 255, 0.45);
  stroke-width: 1;
}

.fan-hub { fill: var(--green); filter: drop-shadow(0 0 8px rgba(51, 240, 122, 0.6)); }

.compressor-stages path,
.turbine-stages path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.55);
  stroke-width: 10;
  stroke-dasharray: 2 5;
}

.turbine-stages path { stroke: rgba(51, 240, 122, 0.55); }

.engine-core {
  fill: rgba(247, 200, 82, 0.1);
  stroke: rgba(247, 200, 82, 0.58);
  stroke-width: 1.4;
}

.combustion-flame {
  fill: url(#heat);
  opacity: 0.78;
  transform-box: fill-box;
  transform-origin: center;
  animation: combustion-pulse 900ms ease-in-out infinite alternate;
}

.engine-nozzle {
  fill: rgba(51, 240, 122, 0.08);
  stroke: rgba(255, 255, 255, 0.38);
  stroke-width: 1;
}

.engine-spool {
  fill: none;
  stroke: rgba(255, 255, 255, 0.42);
  stroke-width: 4;
}

.inspection-scan {
  color: var(--green);
  transform: translateX(445px);
  animation: engine-scan 6s cubic-bezier(0.65, 0, 0.35, 1) infinite alternate;
  filter: drop-shadow(0 0 10px rgba(51, 240, 122, 0.75));
}

.inspection-scan line { stroke: currentColor; stroke-width: 1; stroke-dasharray: 5 7; }
.inspection-scan circle { fill: currentColor; }

.engine-visual.is-scrubbing .inspection-scan { animation: none; }

.engine-readout {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  padding: 0.7rem 0.8rem;
  display: grid;
  gap: 0.32rem;
  border: 1px solid rgba(51, 240, 122, 0.24);
  background: rgba(5, 9, 7, 0.88);
  font-family: var(--mono);
}

.engine-readout span { color: var(--green); font-size: 0.55rem; letter-spacing: 0.1em; }
.engine-readout b { color: rgba(255, 255, 255, 0.58); font-size: 0.52rem; font-weight: 500; }

.flight-lab:not(.is-running) .flight-path,
.flight-lab:not(.is-running) .aircraft-rig,
.flight-lab:not(.is-running) .air-streams path,
.flight-lab:not(.is-running) .fan-blades,
.flight-lab:not(.is-running) .combustion-flame,
.flight-lab:not(.is-running) .inspection-scan {
  animation-play-state: paused;
}

@keyframes flight-dash { to { stroke-dashoffset: -220; } }

@keyframes aircraft-cruise {
  0% { transform: translate(-10rem, 1.8rem) rotate(0.8deg) scale(0.9); opacity: 0.38; }
  18% { opacity: 1; }
  50% { transform: translate(0, 0) rotate(-0.5deg) scale(0.97); opacity: 1; }
  82% { opacity: 1; }
  100% { transform: translate(10rem, -1.8rem) rotate(-1.5deg) scale(1.02); opacity: 0.38; }
}

@keyframes engine-airflow { to { stroke-dashoffset: -88; } }
@keyframes fan-turn { to { transform: rotate(360deg); } }
@keyframes combustion-pulse { to { transform: scaleX(1.06) scaleY(0.9); opacity: 1; } }
@keyframes engine-scan { from { transform: translateX(130px); } to { transform: translateX(840px); } }

.signal-strip {
  overflow: hidden;
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
  background: var(--green);
}

.signal-track {
  width: max-content;
  min-height: 3.2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--ink);
  font: 500 0.68rem/1 var(--mono);
  letter-spacing: 0.1em;
  animation: ticker 24s linear infinite;
}

.signal-track i {
  font-style: normal;
  font-size: 0.5rem;
}

@keyframes ticker {
  to { transform: translateX(-50%); }
}

.section-shell {
  padding: clamp(5rem, 10vw, 9rem) var(--page-pad);
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 5rem);
}

.section-index {
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  font-family: var(--mono);
}

.section-index span {
  color: var(--muted);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
}

.section-index b {
  width: 2.1rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--ink);
  font-size: 0.67rem;
}

.problem {
  min-height: 42rem;
  align-items: center;
}

.display-quote {
  max-width: 69rem;
  margin: 0;
  font: 400 clamp(3.2rem, 7vw, 7.5rem)/0.94 var(--serif);
  letter-spacing: -0.04em;
}

.display-quote em {
  color: var(--green-deep);
}

.problem-columns {
  max-width: 62rem;
  margin-top: clamp(2.4rem, 5vw, 4.5rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 7rem);
}

.problem-columns p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.method {
  border-top: 1px solid var(--line);
}

.section-heading {
  grid-column: 2;
}

.section-heading h2 {
  max-width: 59rem;
  color: var(--ink);
  font-size: clamp(3.8rem, 7vw, 7.2rem);
}

.section-heading h2 em {
  color: var(--green-deep);
}

.method-grid {
  grid-column: 2;
  margin-top: 4.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.method-card {
  min-height: 29rem;
  padding: 1.3rem;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.22);
  transition: transform 200ms ease, background 200ms ease;
}

.method-card:hover {
  transform: translateY(-0.35rem);
  background: rgba(255, 255, 255, 0.55);
}

.method-card-featured {
  color: var(--paper-bright);
  background: var(--ink);
}

.method-card-featured:hover {
  background: #151b17;
}

.method-number {
  color: var(--muted);
  font: 0.65rem/1 var(--mono);
}

.method-icon {
  width: 7.6rem;
  height: 7.6rem;
  margin: 3.5rem auto 2.7rem;
  position: relative;
  display: grid;
  place-items: center;
}

.stack-line {
  position: absolute;
  width: 4.4rem;
  height: 2.8rem;
  border: 1px solid var(--ink);
  transform: skewY(-14deg);
}

.stack-line:nth-child(1) { transform: translateY(-1.1rem) skewY(-14deg); background: var(--paper); }
.stack-line:nth-child(2) { transform: skewY(-14deg); background: var(--paper-muted); }
.stack-line:nth-child(3) { transform: translateY(1.1rem) skewY(-14deg); background: var(--green); }

.lens {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
}

.lens::before,
.lens::after {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(51, 240, 122, 0.35);
  border-radius: 50%;
}

.lens::after {
  inset: 2.3rem;
  background: var(--green);
  border: 0;
  box-shadow: 0 0 2rem rgba(51, 240, 122, 0.32);
}

.lens i {
  position: absolute;
  width: 3rem;
  height: 1px;
  right: -1.6rem;
  bottom: 0.6rem;
  background: rgba(255, 255, 255, 0.35);
  transform: rotate(48deg);
}

.branch::before,
.branch::after,
.branch i {
  content: "";
  position: absolute;
  background: var(--ink);
}

.branch::before { width: 1px; height: 5rem; }
.branch::after { width: 4.2rem; height: 1px; top: 3.8rem; }
.branch i { width: 0.8rem; height: 0.8rem; border: 2px solid var(--ink); border-radius: 50%; background: var(--paper); }
.branch i:nth-child(1) { top: 0.7rem; }
.branch i:nth-child(2) { bottom: 1rem; left: 1.3rem; background: var(--green); }
.branch i:nth-child(3) { bottom: 1rem; right: 1.3rem; }

.method-card h3 {
  margin: 0;
  font: 400 2.4rem/1 var(--serif);
}

.method-card p {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.65;
}

.method-card-featured p {
  color: rgba(255, 255, 255, 0.54);
}

.card-tag {
  margin-top: auto;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line);
  color: var(--green-deep);
  font: 0.6rem/1 var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.method-card-featured .card-tag {
  border-color: var(--line-dark);
  color: var(--green);
}

.evidence-section {
  padding: clamp(5rem, 10vw, 9rem) var(--page-pad);
  color: var(--paper-bright);
  background: var(--ink);
}

.evidence-inner {
  max-width: 88rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr minmax(24rem, 0.7fr);
  align-items: center;
  gap: clamp(4rem, 9vw, 10rem);
}

.evidence-copy h2,
.closing-copy h2 {
  font-size: clamp(3.8rem, 6.5vw, 7rem);
}

.evidence-copy > p:not(.eyebrow) {
  max-width: 38rem;
  margin: 2rem 0 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 1rem;
  line-height: 1.7;
}

.law-list {
  max-width: 36rem;
  margin: 3rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.law-list li {
  padding: 1.15rem 0;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1rem;
  border-bottom: 1px solid var(--line-dark);
  font-size: 0.9rem;
}

.law-list span {
  color: var(--green);
  font: 0.6rem/1.5 var(--mono);
}

.receipt-wrap {
  position: relative;
  padding: 1rem 1rem 1.7rem;
}

.receipt {
  position: relative;
  z-index: 2;
  padding: 1.2rem;
  color: var(--ink);
  background: var(--paper-bright);
  border-radius: 0.2rem;
  box-shadow: 0 2.5rem 6rem rgba(0, 0, 0, 0.4);
  transform: rotate(1.5deg);
}

.receipt::before,
.receipt::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 0.5rem;
  background: repeating-linear-gradient(90deg, transparent 0 0.35rem, var(--ink) 0.36rem 0.46rem, transparent 0.47rem 0.75rem);
  opacity: 0.12;
}

.receipt::before { top: -0.2rem; }
.receipt::after { bottom: -0.2rem; }

.receipt-head {
  padding-bottom: 0.8rem;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--line);
  font: 0.57rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.receipt-head b { color: var(--green-deep); }

.receipt-logo {
  margin: 1.5rem 0 1.7rem;
  font-size: 3.6rem;
  font-weight: 700;
  letter-spacing: -0.08em;
}

.receipt dl { margin: 0; }

.receipt dl div {
  padding: 0.72rem 0;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  border-top: 1px solid var(--line);
  font: 0.7rem/1.2 var(--mono);
}

.receipt dt { color: var(--muted); }
.receipt dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
.receipt-true { color: var(--green-deep); font-weight: 500; }

.receipt-chain {
  margin-top: 1.3rem;
  display: flex;
  justify-content: space-between;
  gap: 0.25rem;
}

.receipt-chain span {
  height: 2.2rem;
  flex: 1;
  background: var(--ink);
}

.receipt-chain span:nth-child(2n) { flex: 0.4; }
.receipt-chain span:nth-child(3n) { flex: 0.16; }

.receipt > p {
  margin: 1rem 0 0;
  color: var(--muted);
  font: 0.56rem/1.5 var(--mono);
}

.receipt-shadow {
  position: absolute;
  inset: 2rem 0 0 2rem;
  z-index: 1;
  border: 1px solid rgba(51, 240, 122, 0.36);
  transform: rotate(-3deg);
}

.boundaries {
  border-bottom: 1px solid var(--line);
}

.boundary-content {
  grid-column: 2;
}

.boundary-content .section-heading {
  grid-column: auto;
}

.boundary-grid {
  margin-top: 4.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.boundary-card {
  min-height: 16rem;
  padding: 1.35rem;
  border-top: 1px solid var(--ink);
  background: rgba(255, 255, 255, 0.22);
}

.status-dot {
  display: block;
  width: 0.55rem;
  height: 0.55rem;
  margin-bottom: 3rem;
  border-radius: 50%;
  background: var(--ink);
}

.status-dot.green { background: var(--green-deep); box-shadow: 0 0 0 0.3rem rgba(18, 165, 82, 0.1); }
.status-dot.amber { background: #d89900; box-shadow: 0 0 0 0.3rem rgba(216, 153, 0, 0.1); }
.status-dot.white { background: var(--paper-bright); border: 1px solid var(--ink); }

.boundary-card .micro-label,
.support-envelope .micro-label {
  color: var(--muted);
}

.boundary-card h3 {
  margin: 0.7rem 0 0;
  font: 400 1.7rem/1.08 var(--serif);
}

.boundary-card > p:last-child {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.support-envelope {
  margin-top: 0.75rem;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  color: var(--paper-bright);
  background: var(--ink);
}

.support-envelope strong {
  display: block;
  margin-top: 0.65rem;
  font-size: 1rem;
}

.support-envelope > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.78rem;
  line-height: 1.65;
}

.closing {
  position: relative;
  min-height: 46rem;
  padding: clamp(5rem, 9vw, 8rem) var(--page-pad);
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(25rem, 0.72fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 9rem);
  color: var(--paper-bright);
  background: var(--green-deep);
  overflow: hidden;
}

.closing-grid {
  opacity: 0.36;
  mask-image: none;
}

.closing-copy {
  position: relative;
  z-index: 1;
}

.closing-copy h2 em { color: var(--ink); }

.closing-copy > p:not(.eyebrow) {
  max-width: 38rem;
  margin: 2rem 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
}

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

.release-form {
  position: relative;
  z-index: 1;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: var(--paper-bright);
  background: var(--ink);
  box-shadow: 1.4rem 1.4rem 0 rgba(10, 13, 11, 0.12);
}

.release-form-head {
  padding-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.42);
  font: 0.55rem/1.35 var(--mono);
  letter-spacing: 0.09em;
}

.form-field {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.55rem;
}

.form-field > span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.72rem;
  font-weight: 600;
}

.form-field b { color: var(--green); }
.form-field small { margin-left: 0.35rem; color: rgba(255, 255, 255, 0.28); font-weight: 400; }

.form-field input {
  width: 100%;
  min-height: 3.45rem;
  padding: 0 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0;
  color: var(--paper-bright);
  background: rgba(255, 255, 255, 0.035);
  outline: none;
  transition: border-color 160ms ease, background 160ms ease;
}

.form-field input::placeholder { color: rgba(255, 255, 255, 0.28); }
.form-field input:hover { border-color: rgba(255, 255, 255, 0.34); }
.form-field input:focus { border-color: var(--green); background: rgba(51, 240, 122, 0.035); }

.form-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.consent-field {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: 1.2rem 1fr;
  align-items: start;
  gap: 0.72rem;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.68rem;
  line-height: 1.55;
}

.consent-field input {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0.1rem 0 0;
  accent-color: var(--green);
}

.consent-field a { color: var(--green); }

.release-submit {
  width: 100%;
  margin-top: 1.4rem;
  border: 1px solid var(--green);
  color: var(--ink);
  background: var(--green);
  cursor: pointer;
}

.release-submit:hover { background: #68ff9d; }
.release-submit:disabled { cursor: wait; opacity: 0.58; transform: none; }

.form-status {
  min-height: 1.2rem;
  margin: 0.8rem 0 0;
  color: rgba(255, 255, 255, 0.6);
  font: 0.62rem/1.5 var(--mono);
}

.form-status.is-success { color: var(--green); }
.form-status.is-error { color: var(--amber); }

.release-form.is-complete .form-field,
.release-form.is-complete .form-pair,
.release-form.is-complete .consent-field,
.release-form.is-complete .release-submit {
  opacity: 0.32;
}

.site-footer {
  min-height: 14rem;
  padding: 2.5rem var(--page-pad);
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr auto;
  align-items: start;
  gap: 2rem;
  color: var(--paper-bright);
  background: var(--ink);
}

.brand-footer .wordmark { font-size: 2rem; }

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font: 0.72rem/1.6 var(--mono);
}

.site-footer p span { color: rgba(255, 255, 255, 0.3); }

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.75rem;
  text-decoration: none;
}

.footer-links a:hover { color: var(--green); }

.site-footer .copyright {
  color: rgba(255, 255, 255, 0.26);
  white-space: nowrap;
}

.policy-page {
  min-height: 100svh;
  color: var(--paper-bright);
  background:
    radial-gradient(circle at 82% 12%, rgba(51, 240, 122, 0.09), transparent 24rem),
    var(--ink);
}

.policy-header {
  min-height: 6rem;
  padding: 1.2rem var(--page-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
}

.policy-header > a:last-child {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.76rem;
  text-underline-offset: 0.25rem;
}

.policy-main {
  width: min(100%, 88rem);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 8rem) var(--page-pad);
}

.policy-kicker,
.policy-updated {
  color: var(--green);
  font: 0.62rem/1.5 var(--mono);
  letter-spacing: 0.13em;
}

.policy-main > h1 {
  max-width: 72rem;
  margin: 1.6rem 0 0;
  font: 400 clamp(4.2rem, 9vw, 9rem)/0.86 var(--serif);
  letter-spacing: -0.05em;
}

.policy-main > h1 em { color: var(--green); font-weight: 400; }

.policy-lede {
  max-width: 46rem;
  margin: 2.5rem 0 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 1.05rem;
  line-height: 1.7;
}

.policy-lede a,
.policy-contact a { color: var(--green); }

.policy-grid {
  margin-top: clamp(4rem, 8vw, 7rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.policy-grid section {
  min-height: 18rem;
  padding: clamp(1.3rem, 3vw, 2.2rem);
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.policy-grid section > span { color: var(--green); font: 0.6rem/1 var(--mono); }
.policy-grid h2 { margin: 3rem 0 0; font: 400 2.4rem/1 var(--serif); }
.policy-grid p,
.policy-contact > p:not(.micro-label) { color: rgba(255, 255, 255, 0.5); font-size: 0.86rem; line-height: 1.72; }

.policy-contact {
  margin-top: 1rem;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  color: var(--ink);
  background: var(--green);
}

.policy-contact .micro-label { color: rgba(10, 13, 11, 0.55); }
.policy-contact h2 { margin: 1rem 0 0; font: 400 clamp(2.8rem, 5vw, 5rem)/0.95 var(--serif); }
.policy-contact > p:not(.micro-label) { max-width: 48rem; color: rgba(10, 13, 11, 0.68); }
.policy-contact a { color: var(--ink); font-weight: 700; }
.policy-updated { margin: 2.5rem 0 0; color: rgba(255, 255, 255, 0.34); }

.reveal {
  opacity: 0;
  transform: translateY(1.4rem);
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal[data-delay="1"] { transition-delay: 100ms; }
.reveal[data-delay="2"] { transition-delay: 180ms; }
.reveal.is-visible { opacity: 1; transform: none; }

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

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .hero h1 { font-size: clamp(3.7rem, 7vw, 6.2rem); }
  .section-shell { grid-template-columns: 6rem minmax(0, 1fr); }
  .method-grid { grid-template-columns: 1fr 1fr; }
  .method-card:last-child { grid-column: 1 / -1; min-height: 23rem; }
  .method-card:last-child .method-icon { margin: 1rem auto; }
  .evidence-inner { gap: 4rem; }
  .flight-lab-head { grid-template-columns: 1fr 0.6fr; gap: 3rem; }
  .engine-deck { grid-template-columns: 19rem 1fr; }
}

@media (max-width: 820px) {
  .site-header { min-height: 5.5rem; }
  .spoken { display: none; }

  .menu-button {
    width: 2.8rem;
    height: 2.8rem;
    padding: 0;
    display: grid;
    place-content: center;
    gap: 0.45rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    background: transparent;
    cursor: pointer;
  }

  .menu-button > span:not(.sr-only) {
    width: 1rem;
    height: 1px;
    display: block;
    background: currentColor;
    transition: transform 160ms ease;
  }

  .menu-button[aria-expanded="true"] > span:nth-of-type(2) { transform: translateY(0.225rem) rotate(45deg); }
  .menu-button[aria-expanded="true"] > span:nth-of-type(3) { transform: translateY(-0.225rem) rotate(-45deg); }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    padding: 8rem var(--page-pad) 3rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    background: var(--ink);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms ease;
  }

  .site-nav.is-open { opacity: 1; visibility: visible; }
  .site-nav a { font: 400 3rem/1 var(--serif); }
  .site-nav .nav-cta { margin-top: 1rem; font: 700 0.9rem/1 var(--sans); }

  .hero {
    min-height: 0;
    padding-top: 9rem;
    grid-template-columns: 1fr;
  }

  .hero h1 { font-size: clamp(4.1rem, 15vw, 7rem); }
  .hero-lede { max-width: 42rem; }
  .proof-window { transform: none; }
  .section-shell { grid-template-columns: 1fr; }
  .section-index { flex-direction: row; justify-content: space-between; }
  .section-index b { width: auto; padding: 0; border: 0; }
  .section-heading,
  .method-grid,
  .boundary-content { grid-column: 1; }
  .problem { min-height: 0; }
  .problem-columns { grid-template-columns: 1fr; gap: 1.2rem; }
  .evidence-inner { grid-template-columns: 1fr; }
  .receipt-wrap { width: min(100%, 31rem); margin: 0 auto; }
  .flight-lab-head,
  .engine-deck { grid-template-columns: 1fr; }
  .flight-lab-head { align-items: start; gap: 1.5rem; }
  .flight-lab-head > p { max-width: 42rem; }
  .engine-copy { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.11); }
  .engine-stage-key { grid-template-columns: 1fr 1fr; }
  .engine-stage-key span:nth-child(odd) { border-right: 1px solid rgba(255, 255, 255, 0.11); }
  .engine-stage-key span { padding-inline: 0.7rem; }
  .boundary-grid { grid-template-columns: 1fr; }
  .boundary-card { min-height: 13rem; }
  .status-dot { margin-bottom: 2rem; }
  .closing { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  :root { --radius: 0.9rem; }
  .brand-cube { width: 2.3rem; height: 2.3rem; }
  .hero { gap: 3.2rem; }
  .hero h1 { font-size: clamp(3.6rem, 17vw, 5.5rem); }
  .eyebrow { letter-spacing: 0.11em; }
  .window-bar { grid-template-columns: 1fr auto; }
  .window-bar > span:nth-child(2) { display: none; }
  .claim-switcher { grid-template-columns: 1fr; }
  .claim-switcher button { text-align: left; padding-left: 0.7rem; }
  .repo-row { align-items: flex-end; }
  .evidence-chain { grid-template-columns: 1fr; }
  .evidence-chain i { width: 1px; height: 0.65rem; margin-left: 1rem; }
  .proof-footer { align-items: flex-start; flex-direction: column; }
  .section-heading h2,
  .evidence-copy h2,
  .closing-copy h2,
  .display-quote { font-size: clamp(3.1rem, 14vw, 5rem); }
  .method-grid { grid-template-columns: 1fr; }
  .method-card:last-child { grid-column: auto; }
  .method-card { min-height: 25rem; }
  .support-envelope { grid-template-columns: 1fr; gap: 1.5rem; }
  .flight-lab { padding-inline: 0; }
  .flight-lab-head { padding-inline: var(--page-pad); }
  .flight-specimen { border-left: 0; border-right: 0; }
  .aircraft-stage { min-height: 17rem; }
  .aircraft-stage svg { width: 42rem; min-width: 42rem; transform: translateX(-8rem); }
  .aircraft-caption { right: 1rem; left: 1rem; }
  .engine-visual { min-height: 19rem; padding-inline: 0.2rem; }
  .engine-visual svg { width: 46rem; transform: translateX(-5rem); }
  .engine-readout { right: 0.7rem; bottom: 0.7rem; }
  .form-pair { grid-template-columns: 1fr; gap: 0; }
  .release-form-head { flex-direction: column; }
  .closing { min-height: 0; }
  .site-footer { grid-template-columns: 1fr; min-height: 22rem; }
  .policy-grid { grid-template-columns: 1fr; }
  .policy-grid section { min-height: 15rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .aircraft-rig { opacity: 1; transform: none; }
  .inspection-scan { transform: translateX(445px); }
}