:root {
  --jet: #0b0b0b;
  --gunmetal: #2a2a2a;
  --sand: #e6e3da;
  --sand-soft: #c9c5bb;
  --od-green: #4b4e47;
  --oxide: #8b1e1e;
  --line-dark: rgba(230, 227, 218, 0.18);
  --line-light: rgba(11, 11, 11, 0.18);
  --max-width: 1440px;
  --display: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--sand);
  background: var(--jet);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--jet);
  background: var(--sand);
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

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

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 50%;
  display: flex;
  width: min(100%, var(--max-width));
  min-height: 92px;
  padding: 1.25rem clamp(1.25rem, 4vw, 4rem);
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line-dark);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  gap: 0.95rem;
  align-items: center;
  text-decoration: none;
}

.brand__type {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand__name {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.brand__suffix {
  margin-top: 0.36rem;
  color: var(--sand-soft);
  font-size: 0.56rem;
  letter-spacing: 0.49em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: center;
}

.site-nav a,
.text-link {
  position: relative;
  font-family: var(--display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a::after,
.text-link::after {
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  left: 0;
  height: 1px;
  background: var(--oxide);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.text-link:hover::after,
.text-link:focus-visible::after {
  transform: scaleX(1);
}

.arch-mark {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
}

.arch-mark::before {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 58%;
  height: 58%;
  border-top: solid var(--sand);
  border-left: solid var(--sand);
  border-top-left-radius: 24%;
  content: "";
  transform: translate(-50%, -34%) rotate(45deg);
}

.arch-mark--small {
  width: 36px;
  height: 32px;
}

.arch-mark--small::before {
  border-top-width: 7px;
  border-left-width: 7px;
}

.arch-mark--large {
  width: min(34vw, 320px);
  height: min(30vw, 280px);
}

.arch-mark--large::before {
  border-top-width: clamp(28px, 4.6vw, 58px);
  border-left-width: clamp(28px, 4.6vw, 58px);
}

.hero {
  position: relative;
  display: grid;
  min-height: 860px;
  padding: 160px max(calc((100vw - var(--max-width)) / 2 + clamp(1.25rem, 4vw, 4rem)), clamp(1.25rem, 4vw, 4rem)) 0;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  grid-template-rows: 1fr auto;
  overflow: hidden;
  isolation: isolate;
}

.hero__grid {
  position: absolute;
  z-index: -2;
  inset: 0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.22;
  mask-image: linear-gradient(to bottom, transparent 4%, #000 25%, #000 78%, transparent 100%);
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: 0;
  right: 0;
  width: 47%;
  height: 100%;
  border-left: 1px solid var(--line-dark);
  background: rgba(42, 42, 42, 0.18);
  content: "";
}

.hero__copy {
  align-self: center;
  max-width: 810px;
  padding: 2rem clamp(2rem, 5vw, 5rem) 5rem 0;
}

.eyebrow,
.section__label,
.focus-card__tag,
.technical-frame__label {
  margin: 0;
  font-family: var(--display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.23em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--sand-soft);
}

.eyebrow span {
  display: inline-flex;
  align-items: center;
  color: var(--sand);
}

.eyebrow span::before {
  display: inline-block;
  width: 24px;
  height: 2px;
  margin-right: 0.7rem;
  background: var(--oxide);
  content: "";
}

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

h1,
h2,
h3 {
  font-family: var(--display);
  line-height: 0.98;
  text-transform: uppercase;
}

h1 {
  max-width: 850px;
  margin: 1.75rem 0 2rem;
  font-size: clamp(3.7rem, 7.6vw, 8.2rem);
  font-weight: 900;
  letter-spacing: -0.045em;
}

h1 span {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--sand);
  text-stroke: 1.5px var(--sand);
}

.hero__lede {
  max-width: 660px;
  margin-bottom: 2.5rem;
  color: var(--sand-soft);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 52px;
  padding: 0.8rem 1.25rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-family: var(--display);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button--primary {
  color: var(--sand);
  border-color: var(--oxide);
  background: var(--oxide);
}

.button--primary:hover,
.button--primary:focus-visible {
  color: var(--jet);
  border-color: var(--sand);
  background: var(--sand);
}

.text-link {
  padding: 0.8rem 0;
}

.text-link span {
  margin-left: 0.45rem;
  color: var(--oxide);
}

.hero__technical {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  padding: 2rem 0 5rem clamp(2rem, 5vw, 5rem);
}

.technical-frame {
  position: relative;
  display: grid;
  width: min(100%, 520px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line-dark);
}

.technical-frame::before,
.technical-frame::after {
  position: absolute;
  border: 1px solid var(--line-dark);
  content: "";
}

.technical-frame::before {
  inset: 7%;
}

.technical-frame::after {
  top: 50%;
  right: -7%;
  left: -7%;
  height: 1px;
  border-width: 1px 0 0;
}

.rotor {
  position: relative;
  width: 68%;
  aspect-ratio: 1;
  border: 1px solid rgba(230, 227, 218, 0.5);
  border-radius: 50%;
  background: repeating-conic-gradient(
    from 0deg,
    rgba(230, 227, 218, 0.12) 0deg 7deg,
    transparent 7deg 15deg
  );
  box-shadow: inset 0 0 0 16px rgba(230, 227, 218, 0.025);
}

.rotor::before,
.rotor::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.rotor::before {
  inset: 14%;
  border: 1px solid var(--oxide);
  opacity: 0.85;
}

.rotor::after {
  inset: 35%;
  border: 1px solid rgba(230, 227, 218, 0.5);
  background: var(--jet);
}

.rotor__ring {
  position: absolute;
  z-index: 1;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
}

.rotor__ring--outer {
  inset: -8%;
  border-style: dashed;
}

.rotor__ring--inner {
  inset: 26%;
}

.rotor__hub {
  position: absolute;
  z-index: 2;
  inset: 44%;
  border: 1px solid var(--sand);
  border-radius: 50%;
  background: var(--gunmetal);
}

.technical-frame__label {
  position: absolute;
  z-index: 3;
  padding: 0.25rem 0.45rem;
  color: var(--sand-soft);
  background: var(--jet);
}

.technical-frame__label--top {
  top: -0.65rem;
  left: 1rem;
}

.technical-frame__label--bottom {
  right: 1rem;
  bottom: -0.65rem;
}

.technical-frame__scale {
  position: absolute;
  z-index: 3;
  top: 50%;
  right: -2px;
  display: flex;
  height: 52%;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-50%);
}

.technical-frame__scale span {
  display: block;
  width: 8px;
  height: 1px;
  background: var(--sand-soft);
}

.hero__rail {
  display: grid;
  margin-right: calc(-1 * max(calc((100vw - var(--max-width)) / 2 + clamp(1.25rem, 4vw, 4rem)), clamp(1.25rem, 4vw, 4rem)));
  margin-left: calc(-1 * max(calc((100vw - var(--max-width)) / 2 + clamp(1.25rem, 4vw, 4rem)), clamp(1.25rem, 4vw, 4rem)));
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-dark);
}

.hero__rail span {
  padding: 1.35rem clamp(1.25rem, 4vw, 4rem);
  color: var(--sand-soft);
  font-family: var(--display);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.hero__rail span + span {
  border-left: 1px solid var(--line-dark);
}

.section {
  padding: clamp(5rem, 10vw, 9rem) max(calc((100vw - var(--max-width)) / 2 + clamp(1.25rem, 4vw, 4rem)), clamp(1.25rem, 4vw, 4rem));
}

.mission {
  display: grid;
  color: var(--jet);
  background: var(--sand);
  grid-template-columns: minmax(160px, 0.32fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 7rem);
}

.section__label {
  color: var(--oxide);
}

.mission__content {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(2rem, 6vw, 7rem);
}

.mission h2,
.section__heading h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(2.45rem, 5vw, 5.3rem);
  font-weight: 900;
  letter-spacing: -0.035em;
}

.mission__body {
  align-self: end;
  font-size: 1.05rem;
}

.mission__body p:last-child {
  margin-bottom: 0;
}

.focus {
  color: var(--jet);
  background: #d9d6ce;
  border-top: 1px solid var(--line-light);
}

.section__heading {
  display: grid;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
  grid-template-columns: minmax(160px, 0.32fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 7rem);
  align-items: start;
}

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

.focus-card {
  display: flex;
  min-height: 410px;
  padding: 2rem;
  flex-direction: column;
}

.focus-card + .focus-card {
  border-left: 1px solid var(--line-light);
}

.focus-card__number {
  width: fit-content;
  margin-bottom: 4rem;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid var(--oxide);
  font-family: var(--display);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.focus-card h3 {
  max-width: 320px;
  margin-bottom: 1.25rem;
  font-size: clamp(1.45rem, 2.5vw, 2.25rem);
  letter-spacing: -0.02em;
}

.focus-card p {
  max-width: 360px;
  color: #474842;
}

.focus-card__tag {
  margin-top: auto;
  color: var(--oxide);
}

.approach {
  background: var(--jet);
}

.approach .section__heading {
  align-items: end;
}

.approach .section__heading h2 {
  max-width: 760px;
}

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

.process-list li {
  display: grid;
  padding: 1.65rem 0;
  grid-template-columns: minmax(160px, 0.32fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 7rem);
  border-bottom: 1px solid var(--line-dark);
}

.process-list__index {
  color: var(--oxide);
  font-family: var(--display);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.process-list div {
  display: grid;
  grid-template-columns: minmax(170px, 0.32fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: baseline;
}

.process-list strong {
  font-family: var(--display);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.process-list div span {
  color: var(--sand-soft);
}

.contact {
  position: relative;
  display: grid;
  min-height: 640px;
  color: var(--sand);
  background: var(--od-green);
  grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 7vw, 8rem);
  align-items: center;
  overflow: hidden;
}

.contact::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(230, 227, 218, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 227, 218, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  opacity: 0.35;
}

.contact__mark,
.contact__copy {
  position: relative;
  z-index: 1;
}

.contact__mark {
  display: flex;
  align-items: center;
  justify-content: center;
}

.section__label--light {
  color: var(--sand);
}

.contact h2 {
  max-width: 800px;
  margin: 1.5rem 0 1.8rem;
}

.contact p {
  max-width: 660px;
  margin-bottom: 2rem;
  color: #d1d0ca;
  font-size: 1.05rem;
}

.button--sand {
  color: var(--jet);
  background: var(--sand);
}

.button--sand:hover,
.button--sand:focus-visible {
  color: var(--sand);
  border-color: var(--sand);
  background: transparent;
}

.site-footer {
  display: grid;
  max-width: var(--max-width);
  min-height: 112px;
  margin: 0 auto;
  padding: 2rem clamp(1.25rem, 4vw, 4rem);
  grid-template-columns: 1fr auto auto;
  gap: 2rem;
  align-items: center;
  color: var(--sand-soft);
  font-family: var(--display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-footer__brand {
  color: var(--sand);
}

@media (max-width: 980px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  .hero::before {
    top: auto;
    bottom: 0;
    width: 100%;
    height: 45%;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .hero__copy {
    padding: 3rem 0 2rem;
  }

  .hero__technical {
    padding: 3rem clamp(1rem, 8vw, 5rem) 5rem;
  }

  .technical-frame {
    width: min(100%, 430px);
  }

  .mission,
  .mission__content,
  .section__heading {
    grid-template-columns: 1fr;
  }

  .mission__content {
    gap: 2rem;
  }

  .mission__body {
    max-width: 680px;
  }

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

  .focus-card {
    min-height: 320px;
  }

  .focus-card + .focus-card {
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .focus-card__number {
    margin-bottom: 2.5rem;
  }

  .contact {
    min-height: auto;
    grid-template-columns: 0.5fr 1fr;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 80px;
    padding-top: 1rem;
    padding-bottom: 1rem;
  }

  .brand__name {
    font-size: 0.88rem;
  }

  .brand__suffix {
    font-size: 0.48rem;
  }

  .arch-mark--small {
    width: 30px;
    height: 27px;
  }

  .arch-mark--small::before {
    border-top-width: 6px;
    border-left-width: 6px;
  }

  .site-nav {
    gap: 0.85rem;
  }

  .site-nav a {
    font-size: 0.58rem;
    letter-spacing: 0.14em;
  }

  .site-nav a:first-child {
    display: none;
  }

  .hero {
    padding-top: 116px;
  }

  .eyebrow {
    gap: 0.55rem;
    font-size: 0.58rem;
    letter-spacing: 0.14em;
  }

  .eyebrow span::before {
    width: 16px;
    margin-right: 0.45rem;
  }

  h1 {
    margin: 1.25rem 0 1.5rem;
    font-size: clamp(3.2rem, 17vw, 5rem);
  }

  .hero__lede {
    font-size: 1rem;
  }

  .hero__actions {
    gap: 1rem;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero__technical {
    padding-right: 0.75rem;
    padding-left: 0.75rem;
  }

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

  .hero__rail span {
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
  }

  .hero__rail span + span {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .section {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
  }

  .mission h2,
  .section__heading h2,
  .contact h2 {
    font-size: clamp(2.35rem, 12vw, 3.5rem);
  }

  .process-list li,
  .process-list div {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .process-list li {
    gap: 1rem;
  }

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

  .contact__mark {
    justify-content: flex-start;
  }

  .arch-mark--large {
    width: 140px;
    height: 110px;
  }

  .arch-mark--large::before {
    border-top-width: 27px;
    border-left-width: 27px;
  }

  .button--sand {
    width: 100%;
    padding-right: 0.8rem;
    padding-left: 0.8rem;
    font-size: 0.58rem;
    letter-spacing: 0.1em;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }
}

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

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