:root {
  color-scheme: light;
  --ink: #152733;
  --ink-soft: #29414d;
  --steel: #2f5968;
  --steel-mid: #6f8994;
  --steel-pale: #c8d3d8;
  --paper: #f4f6f5;
  --white: #ffffff;
  --signal: #d96b2b;
  --signal-dark: #a94717;
  --signal-text: #9b3d12;
  --line: #d9e0e2;
  --shadow: 0 28px 70px rgba(21, 39, 51, 0.13);
  --shell: 1180px;
  --sans: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

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

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

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

h1,
h2,
h3,
.brand,
.button,
.kicker,
.eyebrow,
.site-nav {
  font-family: var(--sans);
}

h1,
h2,
h3 {
  line-height: 1.03;
  letter-spacing: -0.035em;
}

h1 {
  margin-bottom: 1.35rem;
  font-size: clamp(3rem, 8vw, 6.9rem);
  font-weight: 700;
}

h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.25rem, 5vw, 4.4rem);
  font-weight: 700;
}

h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.4rem, 2vw, 1.8rem);
}

.shell {
  width: min(calc(100% - 2rem), var(--shell));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-160%);
  color: var(--white);
  background: var(--ink);
  font-weight: 700;
}

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

.preview-bar {
  position: relative;
  z-index: 20;
  color: var(--white);
  background: var(--signal-dark);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
}

.preview-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 29px;
  gap: 1rem;
}

.preview-bar__inner span:last-child {
  display: none;
  opacity: 0.78;
}

.site-header {
  position: relative;
  z-index: 10;
  background: rgba(244, 246, 245, 0.97);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: grid;
  gap: 0.75rem;
  padding-block: 1rem 0.75rem;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  width: fit-content;
  text-decoration: none;
}

.brand__name {
  font-size: 1.16rem;
  font-weight: 800;
  letter-spacing: 0.055em;
  line-height: 1;
  text-transform: uppercase;
}

.brand__tagline {
  margin-top: 0.42rem;
  color: var(--steel);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1;
  text-transform: uppercase;
}

.site-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.site-nav a {
  position: relative;
  padding: 0.72rem 0.2rem 0.3rem;
  color: var(--ink-soft);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a::after {
  position: absolute;
  right: 22%;
  bottom: -0.78rem;
  left: 22%;
  height: 3px;
  background: var(--signal);
  content: "";
  opacity: 0;
  transform: scaleX(0);
  transition: opacity 180ms ease, transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(47, 89, 104, 0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(47, 89, 104, 0.055) 1px, transparent 1px);
  background-size: 34px 34px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 92%);
  pointer-events: none;
}

.hero__grid {
  position: relative;
  display: grid;
  gap: 3rem;
  padding-block: clamp(4.5rem, 10vw, 8rem);
}

.hero__copy {
  min-width: 0;
}

.hero__copy h1 {
  max-width: 850px;
}

.eyebrow,
.kicker {
  color: var(--steel);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.eyebrow::before {
  width: 31px;
  height: 3px;
  background: var(--signal);
  content: "";
}

.hero__lead,
.page-hero__lead {
  max-width: 720px;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  padding: 0.86rem 1.15rem;
  border: 1px solid transparent;
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.095em;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

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

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

.button--primary:hover {
  background: var(--steel);
}

.button--quiet {
  border-color: var(--steel-pale);
  background: rgba(255, 255, 255, 0.42);
}

.button--quiet:hover,
.button--outline:hover {
  border-color: var(--ink);
}

.button--outline {
  border-color: var(--steel-mid);
}

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

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

.button--wide {
  width: 100%;
}

.hero-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 3rem 0 0;
}

.hero-index div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.7rem;
}

.hero-index dt {
  color: var(--signal-text);
  font-family: var(--sans);
  font-size: 1.45rem;
  font-weight: 800;
}

.hero-index dd {
  max-width: 110px;
  margin: 0;
  color: var(--steel);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-transform: uppercase;
}

.technical-figure {
  min-width: 0;
  margin: 0;
  box-shadow: var(--shadow);
}

.technical-figure__frame {
  position: relative;
  overflow: hidden;
  background: var(--ink);
}

.technical-figure__frame::after {
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  content: "";
  pointer-events: none;
}

.technical-figure img {
  width: 100%;
  aspect-ratio: 1.25 / 1;
  object-fit: cover;
}

.technical-figure figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  color: var(--white);
  background: var(--steel);
  font-family: var(--sans);
  font-size: 0.57rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.technical-figure figcaption span:last-child {
  color: var(--steel-pale);
  text-align: right;
}

.section {
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.section-heading {
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.section-heading h2 {
  max-width: 800px;
}

.section-heading > p:last-child {
  max-width: 520px;
  color: var(--ink-soft);
}

.kicker {
  margin-bottom: 1.1rem;
}

.kicker--light {
  color: var(--steel-pale);
}

.services-section {
  background: var(--white);
}

.service-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-card {
  display: flex;
  min-height: 310px;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  background: var(--white);
  transition: background-color 180ms ease, transform 180ms ease;
}

.service-card:hover {
  position: relative;
  z-index: 1;
  background: #f9faf9;
  transform: translateY(-3px);
}

.service-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.7rem;
  color: var(--steel-mid);
  font-family: var(--sans);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.service-card h3 {
  max-width: 290px;
}

.service-card p {
  max-width: 330px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.service-card > a {
  width: fit-content;
  margin-top: auto;
  color: var(--steel);
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.service-card > a:hover {
  color: var(--signal-text);
}

.service-glyph {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 36px;
  border: 1px solid var(--steel-pale);
  border-radius: 50%;
}

.service-glyph::before,
.service-glyph::after {
  position: absolute;
  content: "";
}

.service-glyph--form::before {
  inset: 9px;
  border: 2px solid var(--steel);
  transform: rotate(45deg);
}

.service-glyph--analysis::before {
  right: 8px;
  bottom: 9px;
  left: 8px;
  height: 12px;
  border-bottom: 2px solid var(--steel);
  border-left: 2px solid var(--steel);
  transform: skew(-25deg);
}

.service-glyph--model::before {
  inset: 9px 8px;
  border: 2px solid var(--steel);
  box-shadow: 4px -4px 0 -1px var(--paper), 4px -4px 0 0 var(--steel);
}

.service-glyph--control::before {
  top: 16px;
  right: 7px;
  left: 7px;
  height: 2px;
  background: var(--steel);
}

.service-glyph--control::after {
  top: 11px;
  left: 14px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--steel);
  border-radius: 50%;
  background: var(--white);
}

.service-glyph--manufacture::before {
  inset: 8px;
  border: 2px solid var(--steel);
  border-top: 0;
  clip-path: polygon(0 30%, 25% 0, 50% 30%, 75% 0, 100% 30%, 100% 100%, 0 100%);
}

.service-glyph--aftermarket::before {
  inset: 8px;
  border: 2px dashed var(--steel);
  border-radius: 50%;
}

.service-glyph--aftermarket::after {
  top: 15px;
  left: 15px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--signal);
}

.connected-section {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}

.connected-section::after {
  position: absolute;
  right: -12rem;
  bottom: -21rem;
  width: 45rem;
  height: 45rem;
  border: 1px solid rgba(200, 211, 216, 0.13);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(200, 211, 216, 0.025), 0 0 0 10rem rgba(200, 211, 216, 0.02);
  content: "";
}

.connected-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 3.5rem;
}

.connected-copy h2 {
  max-width: 640px;
}

.connected-copy > p:not(.kicker) {
  max-width: 610px;
  color: var(--steel-pale);
}

.text-link {
  display: inline-flex;
  gap: 0.8rem;
  margin-top: 1rem;
  color: var(--steel);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-link--light {
  color: var(--white);
}

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

.discipline-path {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(200, 211, 216, 0.22);
  list-style: none;
}

.discipline-path li {
  position: relative;
  display: grid;
  grid-template-columns: 35px minmax(0, 1fr);
  gap: 0 1rem;
  padding: 1rem 0 1rem 1.2rem;
  border-bottom: 1px solid rgba(200, 211, 216, 0.22);
}

.discipline-path li::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  content: "";
  transform: translateY(-50%);
}

.discipline-path span {
  grid-row: 1 / span 2;
  color: var(--steel-mid);
  font-family: var(--sans);
  font-size: 0.61rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.discipline-path strong {
  font-family: var(--sans);
  font-size: 1.1rem;
}

.discipline-path small {
  color: var(--steel-pale);
  font-size: 0.7rem;
}

.about-preview {
  background: var(--paper);
}

.about-preview__grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.drawing-panel {
  position: relative;
  min-height: 370px;
  overflow: hidden;
  border: 1px solid var(--line);
  background-color: var(--white);
  background-image: linear-gradient(rgba(47, 89, 104, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(47, 89, 104, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
}

.drawing-panel__orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 220px;
  height: 220px;
  border: 2px solid var(--steel);
  border-radius: 50%;
  box-shadow: inset 0 0 0 33px var(--white), inset 0 0 0 35px var(--steel-pale);
  transform: translate(-50%, -50%);
}

.drawing-panel__orbit::before,
.drawing-panel__orbit::after {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  background: var(--signal);
  content: "";
  transform: translate(-50%, -50%);
}

.drawing-panel__orbit::before {
  width: 66px;
  height: 66px;
}

.drawing-panel__orbit::after {
  width: 18px;
  height: 18px;
  background: var(--ink);
}

.drawing-panel__axis {
  position: absolute;
  background: var(--steel-mid);
}

.drawing-panel__axis--x {
  top: 50%;
  right: 8%;
  left: 8%;
  height: 1px;
}

.drawing-panel__axis--y {
  top: 8%;
  bottom: 8%;
  left: 50%;
  width: 1px;
}

.drawing-panel__label,
.drawing-panel__mark {
  position: absolute;
  padding: 0.25rem 0.45rem;
  color: var(--steel);
  background: var(--white);
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.drawing-panel__label--a {
  top: 15%;
  left: 9%;
}

.drawing-panel__label--b {
  right: 9%;
  bottom: 15%;
}

.drawing-panel__mark {
  right: 1rem;
  bottom: 1rem;
  color: var(--white);
  background: var(--steel);
}

.about-preview__copy > p:not(.kicker) {
  max-width: 600px;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.about-preview__copy .button {
  margin-top: 1rem;
}

.questions-section {
  background: var(--white);
}

.questions-layout {
  display: grid;
  gap: 2.5rem;
}

.section-heading--narrow h2 {
  max-width: 560px;
}

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

.question-list details {
  border-bottom: 1px solid var(--line);
}

.question-list summary {
  position: relative;
  padding: 1.55rem 3rem 1.55rem 0;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 700;
  list-style: none;
}

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

.question-list summary::after {
  position: absolute;
  top: 50%;
  right: 0;
  width: 30px;
  height: 30px;
  border: 1px solid var(--steel-pale);
  content: "+";
  color: var(--steel);
  font-size: 1.15rem;
  line-height: 27px;
  text-align: center;
  transform: translateY(-50%);
}

.question-list details[open] summary::after {
  content: "−";
}

.question-list details p {
  max-width: 690px;
  padding: 0 3rem 1.5rem 0;
  color: var(--ink-soft);
}

.contact-band {
  padding-block: clamp(3.5rem, 7vw, 5.5rem);
  color: var(--white);
  background: var(--steel);
}

.contact-band__inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.contact-band h2 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
}

.site-footer {
  padding-block: 3.5rem 1rem;
  color: var(--steel-pale);
  background: #0d1c24;
}

.footer-grid {
  display: grid;
  gap: 2.4rem;
}

.footer-brand {
  margin-bottom: 0.55rem;
  color: var(--white);
  font-family: var(--sans);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.055em;
  line-height: 1;
  text-transform: uppercase;
}

.footer-tagline {
  margin: 0;
  color: var(--steel-mid);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 1.2rem;
}

.footer-nav a {
  width: fit-content;
  color: var(--white);
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}

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

.footer-contact {
  min-width: 0;
}

.footer-contact span {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--steel-mid);
  font-size: 0.57rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-contact a {
  color: var(--white);
  font-size: clamp(0.8rem, 3.5vw, 1rem);
  overflow-wrap: anywhere;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(200, 211, 216, 0.15);
  color: var(--steel-mid);
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

/* Interior page heroes */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4.5rem, 10vw, 8rem);
}

.page-hero::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(47, 89, 104, 0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(47, 89, 104, 0.055) 1px, transparent 1px);
  background-size: 34px 34px;
  content: "";
  mask-image: linear-gradient(90deg, transparent, black);
}

.page-hero__grid {
  position: relative;
  display: grid;
  gap: 3rem;
  align-items: end;
}

.page-hero h1 {
  max-width: 850px;
}

.page-hero__index {
  display: grid;
  border-top: 1px solid var(--steel-pale);
}

.page-hero__index span {
  padding: 0.78rem 0;
  border-bottom: 1px solid var(--steel-pale);
  color: var(--steel);
  font-family: var(--sans);
  font-size: 0.63rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.capability-section {
  background: var(--white);
}

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

.capability-row {
  display: grid;
  gap: 1rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 3rem;
}

.capability-row__number {
  color: var(--signal-text);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.capability-row__title {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 1rem;
}

.capability-row__title .service-glyph {
  flex: 0 0 auto;
}

.capability-row h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
}

.capability-row > p {
  max-width: 580px;
  margin: 0;
  color: var(--ink-soft);
}

.service-connection {
  background: var(--paper);
}

.service-connection__grid {
  display: grid;
  gap: 2rem;
}

.service-connection__copy > p {
  max-width: 600px;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

/* About */
.page-hero--about {
  color: var(--white);
  background: var(--ink);
}

.page-hero--about .eyebrow,
.page-hero--about .page-hero__lead {
  color: var(--steel-pale);
}

.principle-diagram {
  position: relative;
  min-height: 320px;
  border: 1px solid rgba(200, 211, 216, 0.22);
  background-image: linear-gradient(rgba(200, 211, 216, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(200, 211, 216, 0.06) 1px, transparent 1px);
  background-size: 27px 27px;
}

.principle-diagram::before,
.principle-diagram::after {
  position: absolute;
  top: 50%;
  width: 160px;
  height: 160px;
  border: 1px solid var(--steel-mid);
  border-radius: 50%;
  content: "";
  transform: translateY(-50%);
}

.principle-diagram::before {
  left: calc(50% - 115px);
}

.principle-diagram::after {
  right: calc(50% - 115px);
}

.principle-diagram__word,
.principle-diagram__core {
  position: absolute;
  z-index: 1;
  font-family: var(--sans);
  font-weight: 800;
  text-transform: uppercase;
}

.principle-diagram__word {
  top: 50%;
  color: var(--steel-pale);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  transform: translateY(-50%);
}

.principle-diagram__word--theory {
  left: 9%;
}

.principle-diagram__word--practice {
  right: 9%;
}

.principle-diagram__core {
  top: 50%;
  left: 50%;
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--signal);
  letter-spacing: 0.08em;
  transform: translate(-50%, -50%);
}

.principle-grid {
  display: grid;
  gap: 3rem;
}

.principle-cards {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.principle-cards article {
  min-height: 240px;
  padding: 1.5rem;
  background: var(--white);
}

.principle-cards span {
  color: var(--signal-text);
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.principle-cards h3 {
  margin-top: 2.8rem;
}

.principle-cards p {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.proof-section {
  background: var(--white);
}

.proof-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.proof-statement {
  padding: clamp(2rem, 6vw, 4rem);
  color: var(--white);
  background: var(--steel);
}

.proof-statement__label {
  display: block;
  margin-bottom: 1rem;
  color: var(--steel-pale);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.proof-statement strong {
  display: block;
  font-family: var(--sans);
  font-size: clamp(5rem, 15vw, 10rem);
  letter-spacing: -0.08em;
  line-height: 0.88;
}

.proof-statement p {
  max-width: 420px;
  margin: 1.8rem 0 0;
  color: var(--steel-pale);
  font-size: 0.82rem;
}

.proof-copy > p:not(.kicker) {
  max-width: 600px;
  color: var(--ink-soft);
}

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

.statement-section__text {
  max-width: 1000px;
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(2rem, 5.5vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

/* Contact */
.contact-hero {
  position: relative;
  padding-block: clamp(4.5rem, 10vw, 8rem);
  overflow: hidden;
  background-image: linear-gradient(rgba(47, 89, 104, 0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(47, 89, 104, 0.055) 1px, transparent 1px);
  background-size: 34px 34px;
}

.contact-hero__grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.contact-hero__copy h1 {
  max-width: 760px;
}

.contact-hero__copy > p:last-child {
  max-width: 650px;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.contact-card {
  min-width: 0;
  padding: clamp(1.5rem, 5vw, 2.8rem);
  color: var(--white);
  background: var(--ink);
  box-shadow: var(--shadow);
}

.contact-card__label {
  display: block;
  margin-bottom: 1.4rem;
  color: var(--steel-mid);
  font-size: 0.59rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.contact-card__email {
  display: block;
  margin-bottom: 2rem;
  color: var(--white);
  font-family: var(--sans);
  font-size: clamp(1.05rem, 4vw, 1.55rem);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.contact-card > p {
  margin: 1.2rem 0 0;
  color: var(--steel-mid);
  font-size: 0.72rem;
}

.inquiry-section {
  background: var(--white);
}

.inquiry-grid {
  display: grid;
  gap: 3rem;
}

.inquiry-intro {
  max-width: 470px;
  color: var(--ink-soft);
}

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

.inquiry-steps article {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--line);
}

.inquiry-steps article > span {
  color: var(--signal-text);
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.inquiry-steps h3 {
  margin-bottom: 0.45rem;
  font-size: 1.25rem;
}

.inquiry-steps p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.inquiry-steps a {
  overflow-wrap: anywhere;
}

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

.contact-capabilities__inner {
  display: grid;
  gap: 3rem;
}

.contact-capabilities ul {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(200, 211, 216, 0.2);
  list-style: none;
}

.contact-capabilities li {
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(200, 211, 216, 0.2);
  color: var(--steel-pale);
  font-family: var(--sans);
  font-size: 0.83rem;
  font-weight: 700;
}

@media (min-width: 560px) {
  .shell {
    width: min(calc(100% - 3rem), var(--shell));
  }

  .preview-bar__inner span:last-child {
    display: inline;
  }

  .header-inner {
    padding-block: 1.25rem 0.9rem;
  }

  .brand__name {
    font-size: 1.3rem;
  }

  .site-nav a {
    font-size: 0.74rem;
  }

  .button {
    padding-inline: 1.45rem;
  }

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

  .footer-grid {
    grid-template-columns: 1.4fr 1fr;
  }

  .footer-contact {
    grid-column: 1 / -1;
  }
}

@media (min-width: 780px) {
  .site-header {
    position: sticky;
    top: 0;
  }

  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
    padding-block: 1.25rem;
  }

  .site-nav {
    display: flex;
    gap: 2.1rem;
    border-top: 0;
  }

  .site-nav a {
    padding: 0.35rem 0;
  }

  .site-nav a::after {
    right: 0;
    bottom: -1.42rem;
    left: 0;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(310px, 0.92fr);
    align-items: center;
  }

  .hero__copy h1 {
    font-size: clamp(4rem, 7vw, 6.7rem);
  }

  .section-heading--split {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    gap: 3rem;
    align-items: end;
  }

  .section-heading--split > p:last-child {
    margin-bottom: 1.1rem;
  }

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

  .connected-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
    align-items: center;
    gap: 5rem;
  }

  .about-preview__grid {
    grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
    gap: 6rem;
  }

  .questions-layout {
    grid-template-columns: minmax(0, 0.8fr) minmax(350px, 1.2fr);
    gap: 5rem;
  }

  .contact-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 0.7fr 1fr;
    align-items: start;
  }

  .footer-contact {
    grid-column: auto;
    text-align: right;
  }

  .page-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
    gap: 5rem;
  }

  .capability-row {
    grid-template-columns: 48px minmax(260px, 0.9fr) minmax(280px, 1.1fr);
    align-items: center;
    gap: 2rem;
    padding-block: 2.5rem;
  }

  .service-connection__grid,
  .proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 5rem;
  }

  .principle-grid {
    grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.28fr);
    gap: 5rem;
  }

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

  .contact-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    gap: 5rem;
  }

  .inquiry-grid,
  .contact-capabilities__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(340px, 1.15fr);
    gap: 5rem;
  }
}

@media (min-width: 1050px) {
  .technical-figure {
    transform: translateX(1.5rem);
  }

  .hero__grid::after {
    position: absolute;
    right: -2.2rem;
    bottom: 3.5rem;
    width: 86px;
    height: 86px;
    border-right: 1px solid var(--steel-pale);
    border-bottom: 1px solid var(--steel-pale);
    content: "";
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}