:root {
  --axivus-ink: #070a0f;
  --axivus-graphite: #111827;
  --axivus-panel: #151b26;
  --axivus-panel-strong: #1c2534;
  --axivus-titanium: #aab4c3;
  --axivus-fog: #e9edf3;
  --axivus-blue: #4da3ff;
  --axivus-copper: #b98a5b;
  --axivus-green: #58d68d;
  --axivus-warning: #f5c16c;
  --line: rgba(170, 180, 195, 0.22);
  --line-bright: rgba(77, 163, 255, 0.48);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  --radius: 8px;
  --max: 1180px;
  --header-height: 74px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--axivus-fog);
  background: var(--axivus-ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--axivus-ink);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--axivus-fog);
  background:
    linear-gradient(180deg, rgba(7, 10, 15, 0.2), var(--axivus-ink) 34rem),
    var(--axivus-ink);
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(77, 163, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 163, 255, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 68%);
}

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

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

::selection {
  background: rgba(77, 163, 255, 0.32);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-140%);
  padding: 10px 14px;
  border-radius: var(--radius);
  color: var(--axivus-ink);
  background: var(--axivus-fog);
  font-weight: 800;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(170, 180, 195, 0.16);
  background: rgba(7, 10, 15, 0.75);
  backdrop-filter: blur(18px);
}

.nav-shell,
.section-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.nav-shell {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  color: var(--axivus-fog);
  font-size: 0.96rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.12;
  text-shadow: 0 0 18px rgba(77, 163, 255, 0.18);
}

.brand-logo {
  width: 150px;
  height: auto;
  filter: drop-shadow(0 0 18px rgba(77, 163, 255, 0.14));
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 6px;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links a,
.nav-cta {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--axivus-titanium);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {
  color: var(--axivus-fog);
  border-color: rgba(77, 163, 255, 0.34);
  background: rgba(77, 163, 255, 0.08);
}

.nav-cta {
  color: var(--axivus-ink);
  background: linear-gradient(135deg, var(--axivus-blue), #9dcfff);
  box-shadow: 0 0 28px rgba(77, 163, 255, 0.24);
}

.section {
  position: relative;
  padding: 110px 0;
}

.page-section {
  min-height: calc(100vh - var(--header-height));
  padding-top: 126px;
}

.page-section h1 {
  max-width: 900px;
  margin-bottom: 0;
  font-size: clamp(2.55rem, 5.6vw, 5rem);
  line-height: 0.98;
}

.landing-body {
  min-height: 100vh;
  overflow-x: hidden;
}

.landing-page {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 48px 20px;
  overflow: hidden;
}

.landing-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 50% 34%, rgba(77, 163, 255, 0.18), transparent 28rem),
    linear-gradient(180deg, rgba(7, 10, 15, 0.26), rgba(7, 10, 15, 0.86)),
    url("assets/axivus-landing-background-centered.png") center / cover no-repeat,
    var(--axivus-ink);
  opacity: 0.96;
}

.landing-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 10, 15, 0.88), rgba(7, 10, 15, 0.56), rgba(7, 10, 15, 0.88)),
    radial-gradient(circle at 50% 50%, transparent, rgba(7, 10, 15, 0.7) 70%);
}

.landing-shell {
  width: min(840px, 100%);
  display: grid;
  justify-items: center;
  gap: 42px;
}

.landing-logo {
  width: min(380px, 82vw);
  filter: drop-shadow(0 0 26px rgba(77, 163, 255, 0.28));
}

.landing-menu {
  width: min(640px, 100%);
  display: grid;
  gap: 10px;
}

.landing-menu a {
  position: relative;
  min-height: 76px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid rgba(170, 180, 195, 0.2);
  border-radius: var(--radius);
  background: rgba(7, 10, 15, 0.68);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.landing-menu a::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(77, 163, 255, 0.72), transparent);
  opacity: 0;
  transition: opacity 180ms ease;
}

.landing-menu a:hover,
.landing-menu a:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(77, 163, 255, 0.52);
  background: rgba(21, 27, 38, 0.82);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.36), 0 0 28px rgba(77, 163, 255, 0.14);
}

.landing-menu a:hover::after,
.landing-menu a:focus-visible::after {
  opacity: 1;
}

.landing-menu span {
  color: var(--axivus-blue);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.landing-menu strong,
.landing-menu small {
  display: block;
}

.landing-menu strong {
  color: var(--axivus-fog);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.landing-menu small {
  margin-top: 4px;
  color: var(--axivus-titanium);
  font-size: 0.86rem;
  line-height: 1.38;
}

.home-hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 58px 0 54px;
}

.home-hero-media,
.home-hero-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.home-hero-media {
  z-index: -2;
  background:
    url("assets/axivus-landing-background-centered.png") center / cover no-repeat,
    var(--axivus-ink);
}

.home-hero-media .hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  filter: saturate(1.04) contrast(1.08) brightness(0.82);
}

.home-hero-overlay {
  z-index: -1;
  background:
    radial-gradient(circle at 78% 24%, rgba(77, 163, 255, 0.22), transparent 26rem),
    linear-gradient(90deg, rgba(7, 10, 15, 0.94), rgba(7, 10, 15, 0.76) 48%, rgba(7, 10, 15, 0.9)),
    linear-gradient(180deg, rgba(7, 10, 15, 0.12), rgba(7, 10, 15, 0.92));
}

.home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.68fr);
  gap: 22px 42px;
  align-items: center;
}

.home-hero-copy {
  max-width: 800px;
}

.home-hero-grid > .quick-proof,
.home-hero-grid > .hero-actions,
.home-hero-grid > .hero-microcopy {
  grid-column: 1;
}

.home-hero-grid > .hero-microcopy {
  margin-top: -10px;
}

.explainer-panel {
  grid-column: 2;
  grid-row: 1;
  align-self: center;
}

.home-hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 6.4vw, 6rem);
  line-height: 1.02;
}

.home-hero h1.home-title-question {
  max-width: 790px;
  padding-bottom: 0.16em;
  font-size: clamp(2.65rem, 4.45vw, 4.45rem);
  line-height: 1.08;
  text-wrap: balance;
}

.home-lede {
  max-width: 760px;
  margin-bottom: 24px;
  color: rgba(233, 237, 243, 0.9);
  font-size: clamp(1.03rem, 1.7vw, 1.32rem);
  line-height: 1.48;
}

.lede-contrast {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr);
  gap: 10px;
  align-items: stretch;
}

.contrast-option {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  min-height: 132px;
  padding: 14px;
  border: 1px solid rgba(170, 180, 195, 0.28);
  border-radius: 8px;
  background: rgba(8, 12, 18, 0.64);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
}

.contrast-option-old {
  border-color: rgba(255, 153, 102, 0.5);
  background:
    linear-gradient(145deg, rgba(255, 153, 102, 0.1), rgba(8, 12, 18, 0.68) 40%),
    rgba(8, 12, 18, 0.64);
}

.contrast-option-future {
  border-color: rgba(77, 163, 255, 0.68);
  background:
    linear-gradient(145deg, rgba(77, 163, 255, 0.16), rgba(8, 12, 18, 0.68) 42%),
    rgba(8, 12, 18, 0.64);
}

.contrast-divider {
  position: relative;
  display: grid;
  place-items: center;
  align-self: stretch;
  min-width: 0;
  color: rgba(233, 237, 243, 0.76);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1;
  text-align: center;
  text-indent: 0.16em;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.6);
  text-transform: uppercase;
  pointer-events: none;
  isolation: isolate;
  user-select: none;
}

.contrast-divider::before {
  content: "";
  position: absolute;
  inset: 10px auto;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(233, 237, 243, 0.34), transparent);
  z-index: -2;
}

.contrast-divider::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(233, 237, 243, 0.22);
  border-radius: 50%;
  background: rgba(7, 10, 15, 0.9);
  box-shadow: 0 0 0 5px rgba(7, 10, 15, 0.72);
  z-index: -1;
}

.contrast-icon {
  position: relative;
  width: 32px;
  height: 32px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.contrast-option-old .contrast-icon {
  color: #ffb27c;
  background: rgba(255, 178, 124, 0.1);
}

.contrast-option-future .contrast-icon {
  color: var(--axivus-blue);
  background: rgba(77, 163, 255, 0.12);
}

.contrast-option-old .contrast-icon::before,
.contrast-option-old .contrast-icon::after,
.contrast-option-future .contrast-icon::before,
.contrast-option-future .contrast-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
}

.contrast-option-old .contrast-icon::before {
  width: 14px;
  height: 2px;
  background: currentColor;
  transform: translate(-50%, -50%);
}

.contrast-option-old .contrast-icon::after {
  width: 18px;
  height: 2px;
  background: currentColor;
  transform: translate(-50%, -50%) rotate(-42deg);
}

.contrast-option-future .contrast-icon::before {
  width: 8px;
  height: 15px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translate(-52%, -58%) rotate(42deg);
}

.contrast-option-future .contrast-icon::after {
  width: 19px;
  height: 2px;
  background: currentColor;
  transform: translate(-46%, -48%);
  opacity: 0.34;
}

.contrast-copy,
.contrast-copy span,
.contrast-copy strong {
  display: block;
}

.contrast-copy strong {
  margin-bottom: 7px;
  color: var(--axivus-fog);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.contrast-copy span {
  color: rgba(233, 237, 243, 0.92);
  font-size: clamp(0.94rem, 1.15vw, 1.08rem);
  line-height: 1.38;
}

.contrast-option-future .contrast-copy strong {
  color: var(--axivus-blue);
}

.quick-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 24px;
}

.quick-proof div,
.route-grid a,
.rev-lift-panel,
.explainer-panel {
  border: 1px solid rgba(170, 180, 195, 0.2);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(21, 27, 38, 0.84), rgba(7, 10, 15, 0.78)),
    var(--axivus-panel);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

.quick-proof div {
  min-height: 118px;
  padding: 15px;
}

.quick-proof strong,
.route-grid strong,
.rev-lift-panel strong {
  display: block;
  color: var(--axivus-fog);
}

.quick-proof strong {
  margin-bottom: 8px;
  color: var(--axivus-blue);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quick-proof span,
.route-grid span {
  color: var(--axivus-titanium);
  font-size: 0.92rem;
  line-height: 1.46;
}

.explainer-panel {
  padding: 14px;
}

.explainer-header {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.explainer-header > span {
  color: var(--axivus-green);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.explainer-controls {
  display: flex;
  gap: 8px;
}

.explainer-controls .sound-toggle,
.video-toggle {
  position: static;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid rgba(170, 180, 195, 0.26);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  background: rgba(7, 10, 15, 0.7);
  backdrop-filter: none;
  font-size: 0.74rem;
  font-weight: 900;
}

.video-toggle[aria-pressed="true"] {
  color: var(--axivus-ink);
  border-color: transparent;
  background: var(--axivus-green);
}

.explainer-window {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid rgba(77, 163, 255, 0.26);
  border-radius: var(--radius);
  background: #020407;
}

.explainer-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.explainer-panel p {
  margin: 12px 2px 0;
  color: rgba(233, 237, 243, 0.78);
  font-size: 0.9rem;
  line-height: 1.48;
}

.home-next {
  padding: 60px 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(88, 214, 141, 0.08), transparent 24rem),
    #0b1018;
}

.home-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(420px, 0.8fr);
  gap: 42px;
  align-items: center;
}

.home-next h2 {
  max-width: 680px;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1.06;
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.route-grid a {
  min-height: 150px;
  padding: 18px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.route-grid a:hover,
.route-grid a:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(77, 163, 255, 0.52);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34), 0 0 28px rgba(77, 163, 255, 0.12);
}

.route-grid strong {
  margin-bottom: 26px;
}

.rev-brief-section {
  background:
    radial-gradient(circle at 82% 18%, rgba(77, 163, 255, 0.14), transparent 26rem),
    linear-gradient(180deg, rgba(7, 10, 15, 0.78), var(--axivus-ink));
}

.axivus-brief-section {
  background:
    radial-gradient(circle at 16% 18%, rgba(77, 163, 255, 0.12), transparent 24rem),
    linear-gradient(180deg, rgba(7, 10, 15, 0.82), var(--axivus-ink));
}

.axivus-system-section {
  padding: 74px 0;
  background:
    radial-gradient(circle at 86% 18%, rgba(185, 138, 91, 0.1), transparent 24rem),
    #0b1018;
}

.rev-brief-grid,
.axivus-brief-grid,
.fit-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(330px, 0.55fr);
  gap: 48px;
  align-items: center;
}

.brief-copy p,
.rev-brief-copy p:not(.eyebrow) {
  max-width: 700px;
  margin-bottom: 24px;
  color: rgba(233, 237, 243, 0.88);
  font-size: 1.16rem;
  line-height: 1.52;
}

.rev-lift-panel {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.rev-lift-panel > span {
  color: var(--axivus-warning);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rev-lift-panel div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 14px 0;
  border-top: 1px solid rgba(170, 180, 195, 0.16);
}

.rev-lift-panel strong {
  color: var(--axivus-green);
  font-size: 2rem;
  line-height: 1;
}

.rev-lift-panel p {
  margin: 0;
  color: var(--axivus-fog);
  font-weight: 800;
  line-height: 1.35;
}

.rev-detail-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 44px;
}

.rev-detail-grid h2 {
  font-size: clamp(1.9rem, 3.2vw, 3rem);
}

.rev-detail-grid p:not(.eyebrow) {
  max-width: 520px;
  margin: 18px 0 0;
}

.rev-system-section,
.rev-fit-section {
  padding: 74px 0;
}

.compact-engine-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 0;
}

.compact-engine-grid .engine-card {
  min-height: auto;
  padding: 18px;
}

.compact-engine-grid .engine-card span {
  margin-bottom: 20px;
}

.fit-grid .pain-list {
  margin: 0;
}

.hero {
  isolation: isolate;
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: start;
  overflow: hidden;
  padding: 96px 0 86px;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-media {
  z-index: 0;
  background: var(--axivus-ink);
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.86;
  filter: saturate(1.05) contrast(1.08) brightness(0.98);
}

.hero-audio {
  display: none;
}

.hero-overlay {
  z-index: 1;
  background:
    radial-gradient(circle at 77% 18%, rgba(77, 163, 255, 0.18), transparent 28rem),
    linear-gradient(90deg, rgba(7, 10, 15, 0.76), rgba(7, 10, 15, 0.48) 50%, rgba(7, 10, 15, 0.62)),
    linear-gradient(180deg, rgba(7, 10, 15, 0.04), rgba(7, 10, 15, 0.62));
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 52px;
  align-items: start;
}

.hero-copy {
  max-width: 1120px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--axivus-blue);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-affiliation {
  max-width: 760px;
  color: var(--axivus-green);
  letter-spacing: 0.04em;
  line-height: 1.32;
  text-transform: none;
}

.tm-mark {
  display: inline-block;
  margin-left: 0.12em;
  font-size: 0.52em;
  letter-spacing: 0.02em;
  line-height: 1;
  text-transform: lowercase;
  transform: translateY(-0.72em);
}

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

h1,
h2,
h3 {
  color: var(--axivus-fog);
  line-height: 1;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(3.25rem, 8vw, 6.9rem);
  font-weight: 900;
}

.hero-title {
  max-width: 1120px;
  margin-bottom: 24px;
  font-size: clamp(3.35rem, 6vw, 6rem);
  line-height: 0.94;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.25rem, 4.8vw, 4.4rem);
  font-weight: 900;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.06rem;
}

p {
  color: var(--axivus-titanium);
  line-height: 1.68;
}

.hero-lede {
  max-width: none;
  margin-bottom: 22px;
}

.hero-copy > .hero-lede:not(.hero-vision) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 6px 28px;
}

.hero-copy > .hero-lede:not(.hero-vision) p:first-child {
  grid-column: 1 / -1;
  max-width: 1040px;
}

.hero-lede p {
  margin-bottom: 14px;
  font-size: 1.02rem;
}

.hero-lede strong {
  color: var(--axivus-fog);
}

.hero-principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  max-width: none;
  margin: 22px 0;
  padding: 16px 18px;
  border: 1px solid rgba(245, 193, 108, 0.28);
  border-radius: var(--radius);
  background: rgba(7, 10, 15, 0.5);
}

.hero-principles p {
  margin: 0;
  color: var(--axivus-fog);
  font-size: 0.94rem;
  font-weight: 900;
  line-height: 1.42;
}

.hero-vision {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1fr);
  gap: 10px 28px;
  margin-bottom: 26px;
}

.hero-vision p {
  margin-bottom: 0;
}

.hero-vision p:nth-child(3) {
  grid-column: 1 / -1;
}

.hero-vision ul {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding-left: 0;
  color: var(--axivus-fog);
  list-style: none;
}

.hero-vision li {
  padding: 10px 12px;
  border-left: 2px solid var(--axivus-blue);
  border-radius: var(--radius);
  color: var(--axivus-titanium);
  background: rgba(7, 10, 15, 0.46);
  line-height: 1.48;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.01em;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

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

.button-primary {
  color: var(--axivus-ink);
  background: linear-gradient(135deg, var(--axivus-blue), #b9dcff);
  box-shadow: 0 0 36px rgba(77, 163, 255, 0.22);
}

.button-secondary {
  color: var(--axivus-fog);
  border-color: rgba(170, 180, 195, 0.32);
  background: rgba(21, 27, 38, 0.76);
}

.button-link {
  color: var(--axivus-warning);
  padding-inline: 8px;
}

.hero-microcopy {
  max-width: 620px;
  margin: 22px 0 0;
  color: rgba(233, 237, 243, 0.78);
  font-size: 0.94rem;
}

.command-module {
  position: relative;
  min-height: 540px;
  padding: 22px;
  border: 1px solid rgba(77, 163, 255, 0.28);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(28, 37, 52, 0.82), rgba(10, 15, 24, 0.84)),
    repeating-linear-gradient(90deg, transparent, transparent 38px, rgba(77, 163, 255, 0.08) 39px);
  box-shadow: var(--shadow), inset 0 0 48px rgba(77, 163, 255, 0.08);
  overflow: hidden;
}

.command-module::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(185, 138, 91, 0.24);
  border-radius: var(--radius);
  pointer-events: none;
}

.rev-engine-infographic {
  position: relative;
  margin: 0 0 30px;
  padding: 24px 28px 22px;
  border: 1px solid rgba(233, 237, 243, 0.48);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 42%, rgba(77, 163, 255, 0.18), transparent 24rem),
    linear-gradient(180deg, rgba(5, 8, 13, 0.96), rgba(7, 10, 15, 0.92)),
    var(--axivus-ink);
  box-shadow: var(--shadow), inset 0 0 70px rgba(77, 163, 255, 0.12);
  overflow: hidden;
}

.rev-engine-infographic::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(77, 163, 255, 0.22);
  border-radius: var(--radius);
  pointer-events: none;
}

.rev-engine-infographic::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(77, 163, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 163, 255, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: 0.2;
}

.workflow-banner,
.engine-workflow-layout,
.workflow-footer {
  position: relative;
  z-index: 1;
}

.workflow-banner {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 260px;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
}

.rail-mark {
  height: 2px;
  background:
    linear-gradient(90deg, transparent, var(--axivus-blue) 18%, rgba(233, 237, 243, 0.72) 18%, rgba(233, 237, 243, 0.72) 100%);
}

.rail-mark::before {
  content: "";
  display: block;
  width: 70px;
  height: 8px;
  transform: translateY(-3px) skewX(-28deg);
  background: repeating-linear-gradient(90deg, var(--axivus-blue) 0 8px, transparent 8px 16px);
}

.workflow-banner h2,
.workflow-banner h3 {
  margin: 0;
  color: #57f224;
  font-size: clamp(2rem, 4.6vw, 4.5rem);
  line-height: 0.92;
  text-align: center;
  text-transform: uppercase;
  text-shadow: 0 0 28px rgba(87, 242, 36, 0.22);
}

.workflow-banner p {
  margin: 0;
  color: #0bd7ff;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-align: right;
  text-transform: uppercase;
}

.engine-workflow-layout {
  display: grid;
  grid-template-columns: minmax(250px, 0.86fr) minmax(360px, 1.26fr) minmax(250px, 0.86fr);
  gap: 18px;
  align-items: stretch;
}

.workflow-column {
  display: grid;
  gap: 20px;
  margin: 0;
  padding: 18px 0;
  list-style: none;
}

.workflow-column li {
  position: relative;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  min-height: 122px;
}

.workflow-column-left li::after,
.workflow-column-right li::after {
  content: "";
  position: absolute;
  top: 24px;
  width: 96px;
  height: 2px;
  background: linear-gradient(90deg, #0bd7ff, rgba(11, 215, 255, 0));
  box-shadow: 0 0 14px rgba(11, 215, 255, 0.34);
}

.workflow-column-left li::after {
  right: -88px;
}

.workflow-column-right li::after {
  left: -88px;
  transform: rotate(180deg);
}

.workflow-number {
  color: #57f224;
  font-size: 1.82rem;
  font-weight: 900;
  line-height: 1;
  text-shadow: 0 0 18px rgba(87, 242, 36, 0.34);
}

.workflow-column h3,
.workflow-column h4 {
  margin: 0 0 6px;
  color: var(--axivus-fog);
  font-size: 1.08rem;
  line-height: 1.16;
}

.workflow-column p {
  margin: 0;
  color: rgba(233, 237, 243, 0.82);
  font-size: 0.92rem;
  line-height: 1.42;
}

.engine-core-graphic {
  position: relative;
  min-height: 640px;
  display: grid;
  place-items: center;
  margin: 0;
  background:
    radial-gradient(circle at 50% 52%, rgba(11, 215, 255, 0.26), transparent 16rem),
    radial-gradient(circle at 50% 50%, rgba(87, 242, 36, 0.08), transparent 22rem);
}

.engine-core-graphic::before {
  content: "";
  position: absolute;
  inset: 7% 2%;
  border-radius: 999px;
  background: radial-gradient(ellipse at center, rgba(11, 215, 255, 0.26), transparent 58%);
  filter: blur(18px);
  opacity: 0.88;
}

.engine-block-art {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  height: auto;
  max-height: 650px;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 0 34px rgba(11, 215, 255, 0.28)) drop-shadow(0 28px 54px rgba(0, 0, 0, 0.72));
}

.workflow-footer {
  display: grid;
  grid-template-columns: 1fr minmax(0, 1.5fr) 1fr;
  gap: 16px;
  align-items: center;
  margin-top: 14px;
  padding-top: 16px;
  border-top: 1px solid rgba(77, 163, 255, 0.22);
  text-transform: uppercase;
}

.workflow-footer span,
.workflow-footer strong {
  color: rgba(233, 237, 243, 0.82);
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.workflow-footer strong {
  color: #57f224;
  text-align: center;
}

.workflow-footer span:last-child {
  text-align: right;
}

.module-header {
  display: flex;
  justify-content: center;
  gap: 14px;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.module-header span {
  color: var(--axivus-green);
  font-size: clamp(1.15rem, 2vw, 1.8rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
}

.module-header .tm-mark {
  font-size: 0.52em;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  transform: translateY(-0.72em);
}

.module-header strong {
  color: var(--axivus-fog);
  font-size: 0.98rem;
}

.signal-flow {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.signal-flow li {
  position: relative;
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 12px 14px 12px 42px;
  border: 1px solid rgba(170, 180, 195, 0.2);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  background: rgba(7, 10, 15, 0.54);
}

.signal-flow li::before {
  content: "";
  position: absolute;
  left: 14px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--axivus-blue);
  border-radius: 999px;
  background: var(--axivus-ink);
  box-shadow: 0 0 20px rgba(77, 163, 255, 0.62);
}

.signal-flow li::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 38px;
  width: 2px;
  height: 23px;
  background: linear-gradient(var(--axivus-blue), transparent);
}

.signal-flow li:last-child::after {
  display: none;
}

.sound-toggle {
  position: absolute;
  right: max(20px, calc((100vw - var(--max)) / 2));
  bottom: 28px;
  z-index: 3;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(170, 180, 195, 0.28);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  background: rgba(7, 10, 15, 0.72);
  backdrop-filter: blur(14px);
  font-size: 0.78rem;
  font-weight: 900;
}

.sound-toggle[aria-pressed="true"] {
  color: var(--axivus-ink);
  border-color: transparent;
  background: var(--axivus-warning);
}

.dev-notice {
  border-block: 1px solid rgba(77, 163, 255, 0.24);
  background: linear-gradient(90deg, rgba(77, 163, 255, 0.12), rgba(185, 138, 91, 0.08));
}

.notice-shell {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: 20px 0;
}

.notice-shell span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(88, 214, 141, 0.38);
  border-radius: var(--radius);
  color: var(--axivus-green);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.notice-shell p {
  margin: 0;
  color: var(--axivus-fog);
}

.section-heading {
  max-width: 850px;
  margin-bottom: 40px;
}

.split-heading {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(300px, 0.5fr);
  gap: 42px;
  align-items: end;
}

.split-heading p {
  margin-bottom: 0;
}

.buzz-section {
  background:
    radial-gradient(circle at 12% 12%, rgba(77, 163, 255, 0.12), transparent 24rem),
    linear-gradient(180deg, var(--axivus-ink), #0b1018);
}

.buzz-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-tile,
.engine-card,
.contact-form,
.workflow-shell,
.evidence-note {
  border: 1px solid rgba(170, 180, 195, 0.18);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(28, 37, 52, 0.92), rgba(16, 23, 33, 0.92)),
    var(--axivus-panel);
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.22);
}

.stat-tile {
  min-height: 286px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.stat-tile::after {
  content: "";
  position: absolute;
  inset: auto 20px 18px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(77, 163, 255, 0.72), transparent);
  opacity: 0.42;
}

.stat-tile:hover {
  transform: translateY(-4px);
  border-color: var(--line-bright);
  box-shadow: 0 20px 58px rgba(0, 0, 0, 0.34), 0 0 28px rgba(77, 163, 255, 0.12);
}

.tile-tag {
  display: inline-flex;
  margin-bottom: 22px;
  color: var(--axivus-copper);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stat-tile strong {
  display: block;
  min-height: 82px;
  margin-bottom: 12px;
  color: var(--axivus-fog);
  font-size: clamp(2rem, 3.9vw, 3.2rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.stat-tile h3 {
  margin-bottom: 10px;
}

.stat-tile p {
  margin-bottom: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.source-backed {
  border-color: rgba(88, 214, 141, 0.22);
}

.doctrine {
  border-color: rgba(245, 193, 108, 0.28);
}

.evidence-note {
  margin-top: 18px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: minmax(220px, 0.4fr) minmax(0, 1fr);
  gap: 18px;
}

.evidence-note p {
  margin: 0;
}

.evidence-note p:first-child {
  color: var(--axivus-fog);
  font-weight: 900;
}

.bottleneck-section {
  background: linear-gradient(180deg, #0b1018, var(--axivus-ink));
}

.bottleneck-grid,
.homeowner-grid,
.partner-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(340px, 0.72fr);
  gap: 54px;
  align-items: start;
}

.bottleneck-copy p,
.homeowner-copy p,
.partner-copy p,
.contact-copy p {
  font-size: 1.02rem;
}

.pain-list {
  display: grid;
  gap: 10px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.pain-list li {
  padding: 12px 14px;
  border-left: 2px solid var(--axivus-blue);
  color: var(--axivus-fog);
  background: rgba(21, 27, 38, 0.72);
}

.workflow-shell {
  margin-top: 46px;
  padding: 22px;
}

.workflow-shell > span {
  display: block;
  margin-bottom: 18px;
  color: var(--axivus-warning);
  font-weight: 900;
}

.workflow-map {
  display: grid;
  grid-template-columns: repeat(9, minmax(120px, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  list-style: none;
}

.workflow-map li {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border: 1px solid rgba(77, 163, 255, 0.24);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  text-align: center;
  font-size: 0.82rem;
  font-weight: 800;
  background: rgba(7, 10, 15, 0.5);
}

.engine-section {
  background:
    radial-gradient(circle at 85% 8%, rgba(185, 138, 91, 0.1), transparent 24rem),
    #0b1018;
}

.engine-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.engine-card {
  min-height: 260px;
  padding: 20px;
}

.engine-card span {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--axivus-blue);
  font-weight: 900;
}

.engine-card p {
  margin-bottom: 0;
}

.homeowner-section {
  background:
    radial-gradient(circle at 16% 24%, rgba(88, 214, 141, 0.08), transparent 22rem),
    var(--axivus-ink);
}

.promise {
  padding: 18px 20px;
  border: 1px solid rgba(88, 214, 141, 0.24);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  background: rgba(88, 214, 141, 0.08);
  font-weight: 800;
}

.chip-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 38px;
}

.chip-cloud span,
.thesis-stack span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 13px;
  border: 1px solid rgba(170, 180, 195, 0.2);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  background: rgba(21, 27, 38, 0.7);
  font-size: 0.84rem;
  font-weight: 800;
}

.partner-section {
  background:
    linear-gradient(180deg, rgba(7, 10, 15, 0.72), rgba(7, 10, 15, 1)),
    var(--axivus-panel);
}

.thesis-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.contact-section {
  background:
    radial-gradient(circle at 84% 18%, rgba(77, 163, 255, 0.12), transparent 26rem),
    #090d14;
}

.contact-form {
  padding: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

label,
legend {
  color: var(--axivus-fog);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(170, 180, 195, 0.24);
  border-radius: var(--radius);
  color: var(--axivus-fog);
  background: rgba(7, 10, 15, 0.78);
  padding: 11px 12px;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--axivus-blue);
  box-shadow: 0 0 0 3px rgba(77, 163, 255, 0.16);
}

.field-group {
  margin: 2px 0 18px;
  padding: 18px 16px 2px;
  border: 1px solid rgba(77, 163, 255, 0.18);
  border-radius: var(--radius);
}

.field-group legend {
  padding: 0 8px;
  color: var(--axivus-blue);
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.form-submit {
  width: 100%;
}

.form-status {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--axivus-green);
  font-weight: 800;
}

.form-status.is-error {
  color: #ff8d8d;
}

.contact-signature {
  width: min(280px, 78vw);
  margin-top: 24px;
  opacity: 0.92;
  filter: drop-shadow(0 14px 24px rgba(0, 0, 0, 0.34));
}

.site-footer {
  border-top: 1px solid rgba(170, 180, 195, 0.16);
  background: #05070b;
}

.footer-inner {
  min-height: 86px;
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  color: var(--axivus-titanium);
  font-size: 0.86rem;
}

.footer-inner a {
  color: var(--axivus-fog);
  font-weight: 800;
}

@media (prefers-reduced-motion: no-preference) {
  .signal-flow li::before {
    animation: pulse 2.8s ease-in-out infinite;
  }

  .stat-tile,
  .engine-card,
  .workflow-shell,
  .contact-form {
    animation: fade-up 700ms ease both;
  }

  .stat-tile:nth-child(2n),
  .engine-card:nth-child(2n) {
    animation-delay: 90ms;
  }

  .stat-tile:nth-child(3n),
  .engine-card:nth-child(3n) {
    animation-delay: 160ms;
  }

  @keyframes fade-up {
    from {
      opacity: 0;
      transform: translateY(18px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes pulse {
    0%,
    100% {
      box-shadow: 0 0 14px rgba(77, 163, 255, 0.36);
    }

    50% {
      box-shadow: 0 0 28px rgba(77, 163, 255, 0.82);
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1100px) {
  .buzz-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .home-hero-copy {
    max-width: 820px;
  }

  .home-hero-grid > .quick-proof,
  .home-hero-grid > .hero-actions,
  .home-hero-grid > .hero-microcopy,
  .explainer-panel {
    grid-column: auto;
    grid-row: auto;
  }

  .explainer-panel {
    max-width: 720px;
  }

  .route-grid,
  .compact-engine-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .engine-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .nav-shell {
    grid-template-columns: auto auto;
  }

  .nav-links {
    order: 3;
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 10px;
  }

  .nav-cta {
    justify-self: end;
  }

  .site-header {
    min-height: auto;
  }

  .hero {
    padding-top: 86px;
  }

  .page-section {
    padding-top: 92px;
  }

  .hero-title {
    font-size: 3.1rem;
  }

  .hero-grid,
  .home-hero-grid,
  .home-next-grid,
  .rev-brief-grid,
  .axivus-brief-grid,
  .rev-detail-grid,
  .fit-grid,
  .split-heading,
  .bottleneck-grid,
  .homeowner-grid,
  .partner-grid,
  .contact-grid,
  .notice-shell,
  .evidence-note {
    grid-template-columns: 1fr;
  }

  .command-module {
    min-height: auto;
  }

  .hero-copy > .hero-lede:not(.hero-vision),
  .hero-principles,
  .hero-vision,
  .hero-vision ul {
    grid-template-columns: 1fr;
  }

  .hero-copy > .hero-lede:not(.hero-vision) p:first-child,
  .hero-vision p:nth-child(3),
  .hero-vision ul {
    grid-column: auto;
  }

  .workflow-banner,
  .engine-workflow-layout,
  .workflow-footer {
    grid-template-columns: 1fr;
  }

  .workflow-banner h3,
  .workflow-banner h2,
  .workflow-banner p,
  .workflow-footer strong,
  .workflow-footer span:last-child {
    text-align: left;
  }

  .rail-mark,
  .workflow-column li::after {
    display: none;
  }

  .engine-core-graphic {
    min-height: 520px;
    order: -1;
  }

  .buzz-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-tile {
    min-height: 250px;
  }

  .home-hero {
    min-height: auto;
    padding: 62px 0 52px;
  }

  .home-hero-copy {
    max-width: none;
  }

  .home-hero-grid > .quick-proof,
  .home-hero-grid > .hero-actions,
  .home-hero-grid > .hero-microcopy,
  .explainer-panel {
    grid-column: auto;
    grid-row: auto;
  }

  .home-hero-grid > .hero-microcopy {
    margin-top: 0;
  }

  .explainer-panel {
    max-width: 680px;
  }

  .home-next,
  .axivus-system-section,
  .rev-system-section,
  .rev-fit-section {
    padding: 56px 0;
  }
}

@media (max-width: 640px) {
  .landing-page {
    padding: 34px 18px;
  }

  .landing-shell {
    gap: 30px;
  }

  .landing-menu a {
    min-height: 70px;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
    padding: 14px;
  }

  .page-section h1 {
    font-size: clamp(2.25rem, 12vw, 3.4rem);
  }
}

@media (max-width: 640px) {
  .nav-shell,
  .section-inner {
    width: min(100% - 28px, var(--max));
  }

  .brand-logo {
    width: 128px;
  }

  .brand-wordmark {
    max-width: 190px;
    font-size: 0.82rem;
    letter-spacing: 0.02em;
  }

  .nav-cta {
    min-height: 38px;
    padding-inline: 10px;
    font-size: 0.75rem;
  }

  .hero {
    min-height: auto;
    padding: 74px 0 86px;
  }

  .hero-title {
    font-size: 2.35rem;
    line-height: 1.04;
  }

  h1 {
    font-size: clamp(2.35rem, 12vw, 3.45rem);
  }

  h2 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .hero-actions,
  .section-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .command-module,
  .contact-form {
    padding: 18px;
  }

  .rev-engine-infographic {
    padding: 18px;
  }

  .workflow-banner h2,
  .workflow-banner h3 {
    font-size: 2.2rem;
  }

  .workflow-column li {
    grid-template-columns: 48px minmax(0, 1fr);
    min-height: auto;
  }

  .workflow-number {
    font-size: 1.45rem;
  }

  .engine-core-graphic {
    min-height: 390px;
  }

  .engine-block-art {
    width: min(100%, 260px);
    max-height: 390px;
  }

  .sound-toggle {
    right: 14px;
    bottom: 18px;
  }

  .home-hero h1 {
    font-size: clamp(2.55rem, 12vw, 3.7rem);
    line-height: 1.04;
  }

  .home-hero h1.home-title-question {
    font-size: clamp(2.35rem, 10vw, 3.25rem);
    line-height: 1.08;
  }

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

  .lede-contrast {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .contrast-divider {
    min-height: 34px;
  }

  .contrast-divider::before {
    inset: auto 10px;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(233, 237, 243, 0.34), transparent);
  }

  .contrast-option {
    grid-template-columns: 30px minmax(0, 1fr);
    min-height: auto;
    padding: 12px;
  }

  .contrast-icon {
    width: 28px;
    height: 28px;
  }

  .contrast-copy strong {
    margin-bottom: 5px;
    font-size: 0.62rem;
  }

  .contrast-copy span {
    font-size: 0.8rem;
    line-height: 1.34;
  }

  .quick-proof,
  .route-grid,
  .compact-engine-grid {
    grid-template-columns: 1fr;
  }

  .quick-proof div,
  .route-grid a {
    min-height: auto;
  }

  .explainer-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .explainer-controls {
    width: 100%;
  }

  .explainer-controls .sound-toggle,
  .video-toggle {
    width: 100%;
  }

  .rev-lift-panel div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .buzz-grid,
  .engine-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .stat-tile,
  .engine-card {
    min-height: auto;
  }

  .stat-tile strong {
    min-height: auto;
  }

  .footer-inner {
    min-height: 110px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }
}