:root {
  --ink: #f5fbff;
  --muted: #b9c8d3;
  --quiet: #8194a2;
  --navy: #031522;
  --deep: #061a28;
  --panel: #0b2332;
  --panel-strong: #0f2e3e;
  --line: rgba(214, 236, 246, 0.18);
  --line-strong: rgba(214, 236, 246, 0.34);
  --cyan: #09a9e8;
  --cyan-dark: #0274a8;
  --green: #65d6a4;
  --amber: #f1b751;
  --white: #ffffff;
  --header-height: 68px;
  --header-small: 52px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--navy);
  color: var(--ink);
  font-family: "Segoe UI", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: 0;
}

button {
  border: 0;
}

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

.site-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: rgba(3, 21, 34, 0.64);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  gap: 24px;
  height: var(--header-height);
  justify-content: space-between;
  left: 0;
  padding: 10px 34px;
  position: fixed;
  right: 0;
  top: 0;
  transition: height 220ms ease, padding 220ms ease, background 220ms ease;
  z-index: 20;
}

.site-header.is-scrolled {
  background: rgba(3, 21, 34, 0.92);
  height: var(--header-small);
  padding-bottom: 6px;
  padding-top: 6px;
}

.brand {
  align-items: center;
  display: inline-flex;
  flex: 0 0 auto;
}

.brand__matte {
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 6px;
  display: inline-flex;
  height: 42px;
  justify-content: center;
  overflow: hidden;
  padding: 5px 8px;
  transition: height 220ms ease, width 220ms ease;
  width: 128px;
}

.site-header.is-scrolled .brand__matte {
  height: 34px;
  width: 104px;
}

.brand img {
  height: auto;
  width: 112px;
}

.site-header.is-scrolled .brand img {
  width: 92px;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: 6px;
  white-space: nowrap;
}

.site-nav a {
  border-bottom: 1px solid transparent;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1;
  padding: 12px 11px;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  border-color: var(--cyan);
  color: var(--white);
}

.mobile-partner-link {
  display: none;
}

.hero {
  isolation: isolate;
  min-height: 84svh;
  overflow: hidden;
  position: relative;
}

.hero__media,
.subhero__media {
  background-image: url("assets/hero-safety-ml.jpg");
  background-position: 47% 42%;
  background-size: cover;
  inset: 0;
  position: absolute;
  transform: translate3d(0, var(--hero-shift, 0), 0) scale(1.03);
  transition: transform 80ms linear;
  z-index: -3;
}

.hero__shade,
.subhero__shade {
  background:
    linear-gradient(90deg, rgba(3, 21, 34, 0.98) 0%, rgba(3, 21, 34, 0.88) 38%, rgba(3, 21, 34, 0.28) 78%),
    linear-gradient(0deg, rgba(3, 21, 34, 0.9) 0%, rgba(3, 21, 34, 0.1) 45%, rgba(3, 21, 34, 0.36) 100%);
  inset: 0;
  position: absolute;
  z-index: -2;
}

.hero__scan {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 74px 74px;
  inset: 0;
  mask-image: linear-gradient(90deg, black 0%, transparent 74%);
  opacity: 0.18;
  position: absolute;
  z-index: -1;
}

.hero__content {
  box-sizing: border-box;
  max-width: 680px;
  min-width: 0;
  padding: 122px 34px 76px;
  width: 100%;
}

.hero__logo {
  background: rgba(255, 255, 255, 0.96);
  border-radius: 8px;
  display: inline-flex;
  margin-bottom: 28px;
  padding: 15px 18px 12px;
}

.hero__logo img {
  width: 280px;
}

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

h1,
h2,
h3 {
  text-wrap: balance;
}

.hero h1 {
  font-size: 4.15rem;
  line-height: 0.98;
  max-width: 650px;
}

.hero__mission {
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.65;
  margin-top: 24px;
  max-width: min(580px, 100%);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  align-items: center;
  border-radius: 999px;
  box-sizing: border-box;
  cursor: pointer;
  display: inline-flex;
  font-weight: 700;
  gap: 10px;
  justify-content: center;
  min-height: 48px;
  min-width: 148px;
  padding: 0 20px;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button svg {
  height: 22px;
  width: 22px;
}

.button svg path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

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

.button--primary {
  background: var(--cyan);
  color: #00111b;
}

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

.button--ghost {
  border: 1px solid var(--line-strong);
  color: var(--white);
}

.button--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--green);
}

.hero__proof {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(3, 1fr);
  margin: 46px 0 0;
  max-width: 620px;
  padding: 20px 0 0;
}

.hero__proof div {
  border-right: 1px solid var(--line);
  padding-right: 18px;
}

.hero__proof div + div {
  padding-left: 18px;
}

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

.hero__proof dt {
  color: var(--quiet);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.hero__proof dd {
  color: var(--ink);
  font-size: 1rem;
  margin: 0;
}

.section {
  position: relative;
}

.section__inner {
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 1160px;
  min-width: 0;
  padding: 96px 34px;
}

.section__heading {
  max-width: 720px;
}

.eyebrow {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section h2,
.subhero h1 {
  font-size: 3rem;
  line-height: 1.06;
}

.section h3 {
  font-size: 1.25rem;
  line-height: 1.25;
}

.section p,
.subhero p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.section--work {
  background: #061521;
}

.principles {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 62px;
}

.principle {
  border-top: 1px solid var(--line);
  padding-top: 26px;
}

.principle__icon {
  align-items: center;
  color: var(--cyan);
  display: flex;
  height: 42px;
  margin-bottom: 28px;
  width: 42px;
}

.principle__icon svg {
  height: 42px;
  width: 42px;
}

.principle__icon path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.principle h3 {
  margin-bottom: 14px;
}

.section--systems {
  background: #0a202c;
}

.systems-grid {
  align-items: center;
  display: grid;
  gap: 72px;
  grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1fr);
}

.systems-visual {
  margin: 0;
}

.systems-visual img {
  aspect-ratio: 4 / 5;
  border-radius: 8px;
  object-fit: cover;
  width: 100%;
}

.systems-visual figcaption {
  border-left: 2px solid var(--green);
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-top: 18px;
  padding-left: 14px;
}

.systems-copy h2 {
  max-width: 650px;
}

.section-link {
  margin-top: 34px;
}

.section-link a {
  align-items: center;
  color: var(--white);
  display: inline-flex;
  font-weight: 700;
  gap: 10px;
}

.section-link a:hover {
  color: var(--green);
}

.section-link svg {
  height: 22px;
  width: 22px;
}

.section-link svg path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.system-list {
  border-top: 1px solid var(--line);
  margin-top: 42px;
}

.system-list article {
  display: grid;
  gap: 24px;
  grid-template-columns: 42px 1fr;
  padding: 26px 0;
}

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

.system-list span {
  color: var(--amber);
  font-weight: 800;
}

.system-list h3 {
  margin-bottom: 8px;
}

.section--about {
  background: #08131b;
  min-height: 620px;
  overflow: hidden;
}

.about-media {
  inset: 0 0 0 44%;
  position: absolute;
}

.about-media::after {
  background:
    linear-gradient(90deg, #08131b 0%, rgba(8, 19, 27, 0.76) 18%, rgba(8, 19, 27, 0.16) 54%),
    linear-gradient(0deg, rgba(8, 19, 27, 0.72), transparent 44%);
  content: "";
  inset: 0;
  position: absolute;
}

.about-media img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.about-copy {
  max-width: 1160px;
  position: relative;
}

.about-copy h2,
.about-copy p {
  max-width: 550px;
}

.about-copy p:not(.eyebrow) {
  margin-top: 24px;
}

.section--cta {
  background: #092231;
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.cta-row {
  align-items: center;
  display: flex;
  gap: 36px;
  justify-content: space-between;
  padding-bottom: 72px;
  padding-top: 72px;
}

.cta-row h2 {
  max-width: 700px;
}

.site-footer {
  background: #03111b;
  color: var(--quiet);
}

.footer__inner {
  align-items: center;
  display: flex;
  gap: 22px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1160px;
  padding: 28px 34px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
}

.site-footer a {
  color: var(--muted);
  transition: color 180ms ease;
}

.site-footer a:hover {
  color: var(--white);
}

.subhero {
  isolation: isolate;
  min-height: 78svh;
  overflow: hidden;
  position: relative;
}

.subhero__media {
  background-image: url("assets/lab-engineering.jpg");
  background-position: center;
}

.subhero__media--projects {
  background-image: url("assets/projects-header.jpg");
  background-position: center;
}

.subhero__media--about {
  background-image: url("assets/about-stage-award.jpg");
  background-position: center 18%;
}

.subhero__content {
  box-sizing: border-box;
  min-width: 0;
  padding-top: 154px;
  position: relative;
}

.subhero__content p:not(.eyebrow) {
  max-width: 620px;
  margin-top: 24px;
}

.section--partner-fit {
  background: #061521;
}

.section--project-cases,
.section--story {
  background: #061521;
}

.case-list {
  display: grid;
  gap: 54px;
  margin-top: 56px;
}

.case-block {
  align-items: center;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 38px;
  grid-template-columns: minmax(320px, 0.92fr) minmax(360px, 1fr);
  padding-top: 32px;
}

.case-block--reverse .case-block__media {
  order: 2;
}

.case-block--reverse .case-block__copy {
  order: 1;
}

.case-block__media img,
.story-media img {
  border-radius: 8px;
  object-fit: cover;
  width: 100%;
}

.case-block__media img {
  aspect-ratio: 4 / 3;
}

.case-thumbs {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 14px;
}

.case-thumbs img {
  aspect-ratio: 4 / 3;
  border-radius: 6px;
  object-fit: cover;
}

.case-block__copy h3 {
  font-size: 2rem;
  line-height: 1.08;
  margin-bottom: 18px;
}

.case-block__copy p + p {
  margin-top: 14px;
}

.story-grid {
  align-items: center;
  display: grid;
  gap: 56px;
  grid-template-columns: minmax(360px, 1fr) minmax(320px, 0.82fr);
}

.story-copy h2 {
  margin-bottom: 22px;
}

.story-copy p + p {
  margin-top: 16px;
}

.story-media img {
  aspect-ratio: 4 / 5;
}

.section--team {
  background: #0a202c;
}

.section--team-award {
  background-image:
    linear-gradient(0deg, rgba(10, 32, 44, 0.82), rgba(10, 32, 44, 0.82)),
    url("assets/about-stage-award.jpg");
  background-position: center;
  background-size: cover;
}

.bio-grid {
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 56px;
}

.bio-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.bio-card__photo {
  aspect-ratio: 4 / 4.6;
  border-radius: 8px;
  margin-bottom: 22px;
  max-width: 220px;
  overflow: hidden;
}

.bio-card__photo img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.bio-card h3 {
  margin-bottom: 8px;
}

.bio-role {
  color: var(--green);
  font-weight: 700;
}

.bio-meta {
  color: var(--quiet);
  font-size: 0.94rem;
  margin: 10px 0 18px;
}

.fit-grid {
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 56px;
}

.fit-panel {
  border-left: 2px solid var(--cyan);
  border-top: 1px solid var(--line);
  min-height: 210px;
  padding: 28px 28px 18px;
}

.fit-panel:nth-child(2) {
  border-left-color: var(--green);
}

.fit-panel h3 {
  margin-bottom: 16px;
}

.section--contact {
  background: #0a202c;
}

.contact-grid {
  align-items: start;
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(300px, 0.85fr) minmax(380px, 1.15fr);
}

.contact-copy {
  position: sticky;
  top: 96px;
}

.contact-copy h2 {
  margin-bottom: 24px;
}

.contact-form {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, 1fr);
  padding: 28px;
}

.contact-form label {
  display: grid;
  gap: 8px;
}

.contact-form label span {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  background: rgba(3, 21, 34, 0.72);
  border: 1px solid rgba(214, 236, 246, 0.24);
  border-radius: 6px;
  color: var(--white);
  min-height: 48px;
  padding: 12px 13px;
  transition: border-color 180ms ease, background 180ms ease;
  width: 100%;
}

.contact-form textarea {
  min-height: 152px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  background: rgba(3, 21, 34, 0.9);
  border-color: var(--green);
  outline: 0;
}

.form-full {
  grid-column: 1 / -1;
}

.consent {
  align-items: start;
  display: grid;
  gap: 12px;
  grid-template-columns: 18px 1fr;
}

.consent input {
  min-height: auto;
  margin: 4px 0 0;
  padding: 0;
}

.form-status {
  min-height: 24px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 620ms ease, transform 620ms ease;
}

.is-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.is-ready .hero__logo.is-visible {
  transition-delay: 80ms;
}

.is-ready .hero h1.is-visible {
  transition-delay: 160ms;
}

.is-ready .hero__mission.is-visible {
  transition-delay: 240ms;
}

.is-ready .hero__actions.is-visible,
.is-ready .hero__proof.is-visible {
  transition-delay: 320ms;
}

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

  .hero__media,
  .subhero__media {
    transform: none;
  }
}

@media (max-width: 980px) {
  .site-header {
    padding-left: 22px;
    padding-right: 22px;
  }

  .site-nav {
    gap: 0;
  }

  .site-nav a {
    font-size: 0.84rem;
    padding-left: 8px;
    padding-right: 8px;
  }

  .hero h1 {
    font-size: 3.1rem;
  }

  .section h2,
  .subhero h1 {
    font-size: 2.42rem;
  }

  .principles,
  .systems-grid,
  .contact-grid,
  .case-block,
  .story-grid,
  .bio-grid {
    grid-template-columns: 1fr;
  }

  .systems-grid {
    gap: 46px;
  }

  .case-block--reverse .case-block__media,
  .case-block--reverse .case-block__copy {
    order: initial;
  }

  .systems-visual img {
    aspect-ratio: 16 / 9;
  }

  .about-media {
    inset: 34% 0 0;
  }

  .about-media::after {
    background: linear-gradient(0deg, rgba(8, 19, 27, 0.9), rgba(8, 19, 27, 0.18));
  }

  .about-copy {
    padding-bottom: 360px;
  }

  .contact-copy {
    position: static;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: 58px;
    --header-small: 50px;
  }

  .site-header {
    gap: 10px;
    overflow: hidden;
    padding: 8px 14px;
  }

  .brand__matte {
    height: 36px;
    width: 94px;
  }

  .brand img {
    width: 82px;
  }

  .site-header.is-scrolled .brand__matte {
    height: 32px;
    width: 84px;
  }

  .site-header.is-scrolled .brand img {
    width: 74px;
  }

  .site-nav a {
    padding: 10px 7px;
  }

  .site-nav {
    display: none;
  }

  .mobile-partner-link {
    border-bottom: 1px solid transparent;
    color: var(--muted);
    display: inline-flex;
    font-size: 0.86rem;
    padding: 10px 4px;
    position: absolute;
    right: 14px;
    top: 8px;
  }

  .mobile-partner-link:hover,
  .mobile-partner-link.is-active {
    border-color: var(--cyan);
    color: var(--white);
  }

  .hero {
    min-height: 78svh;
  }

  .hero [data-reveal],
  .subhero [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .hero__shade,
  .subhero__shade {
    background:
      linear-gradient(90deg, rgba(3, 21, 34, 0.98), rgba(3, 21, 34, 0.82)),
      linear-gradient(0deg, rgba(3, 21, 34, 0.92), rgba(3, 21, 34, 0.18));
  }

  .hero__content,
  .section__inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero__content {
    padding-bottom: 52px;
    padding-top: 92px;
  }

  .hero__logo {
    margin-bottom: 22px;
    padding: 11px 12px 9px;
  }

  .hero__logo img {
    width: 220px;
  }

  .hero h1 {
    font-size: 2.28rem;
    line-height: 1.05;
  }

  .hero__mission {
    font-size: 1rem;
    line-height: 1.58;
    margin-top: 18px;
    max-width: calc(100vw - 40px);
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 24px;
    max-width: calc(100vw - 40px);
  }

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

  .hero__proof {
    display: none;
  }

  .section__inner {
    padding-bottom: 72px;
    padding-top: 72px;
  }

  .section h2,
  .subhero h1 {
    font-size: 2rem;
    line-height: 1.12;
  }

  .principles,
  .fit-grid,
  .bio-grid {
    grid-template-columns: 1fr;
    margin-top: 42px;
  }

  .case-list {
    gap: 42px;
    margin-top: 42px;
  }

  .case-block {
    gap: 24px;
    padding-top: 24px;
  }

  .case-block__copy h3 {
    font-size: 1.7rem;
  }

  .system-list article {
    grid-template-columns: 34px 1fr;
  }

  .cta-row {
    align-items: stretch;
    flex-direction: column;
    padding-bottom: 58px;
    padding-top: 58px;
  }

  .footer__inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 26px 20px;
  }

  .site-footer nav {
    justify-content: flex-start;
  }

  .subhero {
    min-height: 70svh;
  }

  .subhero__content {
    padding-top: 118px;
  }

  .fit-panel {
    min-height: auto;
    padding-left: 20px;
    padding-right: 20px;
  }

  .contact-form {
    grid-template-columns: 1fr;
    padding: 20px;
  }
}

@media (max-width: 420px) {
  .site-nav a {
    font-size: 0.78rem;
    padding-left: 6px;
    padding-right: 6px;
  }

  .hero__logo img {
    width: 190px;
  }

  .hero h1 {
    font-size: 2.02rem;
  }
}