:root {
  --ink: #203238;
  --muted: #5f6e70;
  --petrol: #245a67;
  --petrol-deep: #183f49;
  --leaf: #52745f;
  --warm: #c65f3d;
  --paper: #fbfcfa;
  --mist: #eef2ef;
  --line: #d8dfdc;
  --white: #ffffff;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--petrol);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover,
a:focus-visible {
  color: var(--petrol-deep);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 14px max(28px, calc((100vw - 1180px) / 2));
  background: rgba(251, 252, 250, 0.97);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  flex-direction: column;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.15;
}

.brand span {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 700;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

nav a {
  color: var(--ink);
  font-size: 0.83rem;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
  color: var(--petrol);
}

.hero {
  position: relative;
  min-height: min(560px, calc(100vh - 150px));
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  color: var(--white);
  background: url("img/header-bg.jpg") center / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(16, 43, 47, 0.72);
}

.hero-inner {
  width: min(1180px, calc(100% - 56px));
  margin: 0 auto;
  padding: 96px 0 72px;
}

.eyebrow,
.section-label {
  margin: 0 0 16px;
  color: var(--petrol);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow.light {
  color: #dbe8e3;
}

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

h1,
h2 {
  font-family: var(--serif);
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 6vw, 5.6rem);
  line-height: 0.98;
  font-weight: 700;
}

.hero-deck {
  max-width: 740px;
  margin-bottom: 32px;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.2vw, 1.8rem);
  line-height: 1.35;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
}

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

.button.primary:hover,
.button.primary:focus-visible {
  color: var(--white);
  background: var(--petrol-deep);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(15, 35, 38, 0.24);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  color: var(--ink);
  background: var(--white);
}

.button.warm {
  background: var(--warm);
}

.button.warm:hover,
.button.warm:focus-visible {
  background: #a7482d;
}

.hero-meta {
  margin: 34px 0 0;
  color: #dbe8e3;
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1180px, calc(100% - 56px));
  margin: 0 auto;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.fact-strip div {
  min-width: 0;
  padding: 0 28px;
  border-left: 1px solid var(--line);
}

.fact-strip div:first-child {
  padding-left: 0;
  border-left: 0;
}

.fact-strip strong,
.fact-strip span {
  display: block;
}

.fact-strip strong {
  color: var(--petrol);
  font-family: var(--serif);
  font-size: 1.75rem;
  line-height: 1.1;
}

.fact-strip span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.section {
  padding: 94px max(28px, calc((100vw - 1180px) / 2));
}

.section h2,
.partner h2 {
  margin-bottom: 24px;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.08;
}

.question-grid,
.section-heading,
.status-grid,
.partner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: start;
}

.lead {
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.5;
}

.question-grid p:not(.lead),
.section-heading p {
  color: var(--muted);
}

.arms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 68px;
}

.arms article {
  padding-top: 24px;
  border-top: 3px solid var(--petrol);
}

.arm-number {
  color: var(--warm);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.arms h3,
.study-row h3,
.status-item h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.25;
}

.arms p,
.study-row p,
.status-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.study,
.status {
  background: var(--mist);
}

.section-heading {
  margin-bottom: 58px;
}

.study-grid {
  border-top: 1px solid #cbd5d0;
}

.study-row {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: 40px;
  padding: 24px 0;
  border-bottom: 1px solid #cbd5d0;
}

.study-row h3 {
  margin: 0;
}

.operations-note {
  max-width: 820px;
  margin: 52px 0 0 auto;
  padding-left: 24px;
  border-left: 4px solid var(--leaf);
}

.operations-note p:last-child {
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: 1.18rem;
}

.status-grid {
  align-items: stretch;
}

.status-list {
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.status-item {
  display: grid;
  grid-template-columns: 13px minmax(0, 1fr);
  gap: 16px;
}

.status-marker {
  width: 13px;
  height: 9px;
  margin-top: 9px;
  background: var(--petrol);
}

.status-item h3 {
  margin: 0 0 8px;
}

.funding-need {
  padding: 8px 0 8px 30px;
  border-left: 5px solid var(--warm);
}

.funding-need h2 {
  font-size: clamp(1.8rem, 3vw, 2.65rem);
}

.funding-need p:not(.eyebrow) {
  color: var(--muted);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.collaboration {
  background: var(--white);
}

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

.capability-list > div {
  display: grid;
  grid-template-columns: minmax(260px, 0.55fr) minmax(0, 1fr);
  gap: 32px;
  padding: 19px 0;
  border-bottom: 1px solid var(--line);
}

.capability-list strong {
  font-family: var(--serif);
}

.capability-list span {
  color: var(--muted);
}

.leadership {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-top: 48px;
}

.leadership p {
  max-width: 760px;
  margin: 0;
}

.team-roster {
  margin-top: 78px;
  padding-top: 64px;
  border-top: 1px solid var(--line);
}

.team-group + .team-group {
  margin-top: 72px;
}

.team-group-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
  gap: 40px;
  margin-bottom: 30px;
}

.team-group-heading .eyebrow,
.team-group-heading p {
  margin-bottom: 0;
}

.team-group-heading > p:last-child {
  max-width: 650px;
  color: var(--muted);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 36px 28px;
}

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

.team-member {
  min-width: 0;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.team-member img {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: block;
  object-fit: cover;
  object-position: center 20%;
  background: var(--mist);
}

.team-member img.portrait-top {
  object-position: center top;
}

.team-member img.portrait-high {
  object-position: center 18%;
}

.team-member > div {
  padding: 20px 20px 22px;
  display: grid;
  grid-template-rows: minmax(2.65em, auto) minmax(3em, auto) auto;
  align-content: start;
  row-gap: 4px;
}

.team-member h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.14rem;
  line-height: 1.28;
}

.team-member h3 a {
  color: var(--ink);
  text-decoration: none;
}

.team-member h3 a:hover,
.team-member h3 a:focus-visible {
  color: var(--petrol);
  text-decoration: underline;
}

.team-role,
.team-institution {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.5;
}

.team-role {
  color: var(--petrol);
  font-weight: 750;
}

.team-institution {
  margin-top: 0;
  color: var(--muted);
}

.network {
  background: var(--mist);
}

.network-intro {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
  margin-bottom: 58px;
}

.network-intro h2,
.network-intro p {
  margin-bottom: 0;
}

.network-intro p {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.05rem;
}

.network-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 52px 38px;
}

.network-group {
  padding-top: 20px;
  border-top: 2px solid var(--petrol);
}

.network-group h3 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: 1.15rem;
}

.network-group ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.network-group a {
  color: var(--ink);
  text-decoration-color: #9db2ad;
  text-underline-offset: 3px;
}

.network-group a:hover,
.network-group a:focus-visible {
  color: var(--petrol);
}

.partner {
  padding: 86px max(28px, calc((100vw - 1180px) / 2));
  color: var(--white);
  background: var(--petrol-deep);
}

.partner h2 {
  margin-bottom: 0;
}

.partner > div:last-child p {
  color: #dbe8e3;
  font-size: 1.08rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  padding: 38px max(28px, calc((100vw - 1180px) / 2));
  background: #15282d;
  color: #c9d6d2;
  font-size: 0.8rem;
}

footer div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  nav {
    width: 100%;
    flex-wrap: wrap;
    gap: 8px 18px;
    padding-bottom: 3px;
  }

  nav a {
    flex: 0 0 auto;
  }

  .hero {
    min-height: 610px;
  }

  .question-grid,
  .section-heading,
  .status-grid,
  .partner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .arms {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .leadership {
    flex-direction: column;
  }

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

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .site-header {
    position: relative;
    padding: 15px 20px;
  }

  nav {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    justify-content: start;
  }

  .hero-inner,
  .fact-strip {
    width: calc(100% - 40px);
  }

  .hero-inner {
    padding: 74px 0 48px;
  }

  h1 {
    font-size: 2.5rem;
    line-height: 1.02;
  }

  .hero-deck {
    font-size: 1.18rem;
  }

  .hero .eyebrow {
    max-width: 290px;
    font-size: 0.66rem;
    line-height: 1.5;
  }

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

  .button {
    width: 100%;
  }

  .fact-strip {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 24px;
  }

  .fact-strip div {
    padding: 0 12px;
  }

  .fact-strip div:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .section {
    padding: 68px 20px;
  }

  .study-row,
  .capability-list > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .team-group-heading,
  .network-intro,
  .team-grid,
  .team-grid-leadership {
    grid-template-columns: 1fr;
  }

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

  .team-roster {
    margin-top: 56px;
    padding-top: 48px;
  }

  .team-group + .team-group {
    margin-top: 54px;
  }

  .team-member {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
  }

  .team-member img {
    height: 100%;
    aspect-ratio: auto;
  }

  .team-member > div {
    padding: 17px 16px 18px;
    grid-template-rows: auto auto auto;
  }

  .network-groups {
    grid-template-columns: 1fr;
  }

  .operations-note {
    margin-top: 38px;
  }

  .funding-need {
    margin-top: 18px;
  }

  .partner {
    padding: 66px 20px;
  }

  footer {
    flex-direction: column;
    padding: 34px 20px;
  }
}

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