:root {
  color-scheme: light;
  --ink: #1d2528;
  --muted: #667174;
  --line: #d8e1dd;
  --surface: #ffffff;
  --soft: #f3f7f4;
  --accent: #0f766e;
  --accent-dark: #094c47;
  --gold: #c69119;
  --coral: #c8553d;
  --leaf: #617b3a;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #f8fbf9 0, #ffffff 320px),
    var(--surface);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 80px;
  padding: 12px clamp(20px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 48px;
  height: 50px;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-size: 1.05rem;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
}

.nav-item {
  position: relative;
}

nav a,
.nav-link {
  display: inline-flex;
  align-items: center;
  border-radius: 6px;
  padding: 7px 10px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover,
nav a[aria-current="page"],
.nav-item.child-active > .nav-link {
  color: var(--accent-dark);
  background: #e9f5f3;
}

.nav-menu {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 20;
  display: none;
  min-width: 230px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(20, 36, 35, 0.12);
}

.nav-item:hover .nav-menu,
.nav-item:focus-within .nav-menu {
  display: grid;
  gap: 2px;
}

.nav-child {
  justify-content: flex-start;
  width: 100%;
  min-height: 40px;
}

.nav-child.depth-2 {
  padding-left: 24px;
}

main {
  overflow: hidden;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
  max-width: var(--max);
  min-height: 620px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 96px) clamp(20px, 4vw, 48px);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 112px auto auto 0;
  width: 42vw;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.hero h1,
.page-title h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: #3f444b;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 16px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.hero-mark {
  display: grid;
  place-items: center;
  border-left: 1px solid var(--line);
  min-height: 420px;
}

.hero-mark img {
  width: min(320px, 70vw);
  height: auto;
}

.band,
.split-section,
.people-section,
.page-title {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 82px) clamp(20px, 4vw, 48px);
}

.band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.band.compact {
  border-bottom: 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

h2 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: 0;
}

.research-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.research-list li {
  min-height: 108px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
  font-weight: 800;
}

.section-heading p {
  color: var(--muted);
}

.section-link {
  margin: 24px 0 0;
}

.section-link a,
.publication-links a,
.research-jump a {
  color: var(--accent-dark);
  font-weight: 800;
}

.research-title {
  border-bottom: 1px solid var(--line);
}

.research-page {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(32px, 6vw, 64px) clamp(20px, 4vw, 48px);
}

.research-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.research-jump a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: #fff;
  text-decoration: none;
}

.research-writeup {
  display: grid;
  grid-template-columns: minmax(220px, 0.35fr) minmax(0, 0.65fr);
  gap: clamp(24px, 5vw, 56px);
  border-top: 1px solid var(--line);
  padding: clamp(34px, 6vw, 64px) 0;
}

.research-heading {
  position: sticky;
  top: 104px;
  align-self: start;
}

.research-heading p {
  color: var(--muted);
}

.research-copy {
  color: #30383b;
  font-size: 1.02rem;
}

.research-copy p {
  margin: 0 0 1.05rem;
}

.research-publications {
  border-top: 1px solid var(--line);
  background: var(--soft);
}

.content-page {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 48px) clamp(64px, 8vw, 96px);
}

.content-page.has-media {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.58fr);
  gap: clamp(20px, 4vw, 44px);
  align-items: start;
}

.section-content-page {
  display: grid;
  gap: 0;
}

.content-section {
  display: grid;
  gap: clamp(20px, 4vw, 44px);
  border-top: 1px solid var(--line);
  padding: clamp(28px, 5vw, 48px) 0;
}

.content-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.content-section.has-media {
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  align-items: start;
}

.content-section h2 {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
}

.content-section h2 a {
  color: var(--accent-dark);
}

.content-title {
  border-bottom: 1px solid var(--line);
}

.content-copy {
  max-width: 860px;
  color: #30383b;
  font-size: 1.02rem;
}

.content-copy p {
  margin: 0 0 1.05rem;
}

.content-media {
  display: grid;
  gap: 12px;
}

.content-media figure {
  margin: 0;
}

.content-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 520px;
  border-radius: 6px;
  object-fit: contain;
  background: #eef4f0;
}

.news-page {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 48px) clamp(72px, 8vw, 104px);
}

.news-list {
  display: grid;
  gap: 28px;
}

.news-story {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.56fr);
  gap: clamp(20px, 4vw, 44px);
  align-items: start;
  border-top: 1px solid var(--line);
  padding: clamp(28px, 5vw, 48px) 0;
}

.news-story.no-media {
  grid-template-columns: 1fr;
}

.news-date {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 800;
}

.news-story h2 {
  max-width: 780px;
  margin-bottom: 16px;
}

.news-story-copy p:not(.news-date) {
  max-width: 760px;
  margin: 0 0 0.9rem;
  color: #30383b;
}

.award-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 10px;
  max-width: 760px;
  margin: 16px 0 20px;
  padding: 0;
  list-style: none;
}

.award-list li {
  display: block;
  border-left: 3px solid var(--gold);
  border-radius: 6px;
  padding: 11px 13px 12px;
  background: var(--soft);
}

.award-label {
  display: block;
  margin-bottom: 3px;
  color: var(--accent-dark);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.award-list strong,
.award-list small {
  display: block;
}

.award-list small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.news-media {
  display: grid;
  gap: 12px;
}

.news-carousel {
  min-width: 0;
}

.news-carousel-track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  padding-bottom: 8px;
}

.news-carousel figure {
  flex: 0 0 100%;
  scroll-snap-align: start;
}

.news-carousel-hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.news-media figure {
  margin: 0;
}

.news-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 520px;
  border-radius: 6px;
  object-fit: contain;
  background: #eef4f0;
}

.publication-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 28px;
  margin: 0;
  padding-left: 18px;
}

.papers-page {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 48px) clamp(72px, 8vw, 104px);
}

.paper-section {
  border-top: 1px solid var(--line);
  padding: clamp(28px, 5vw, 48px) 0;
}

.paper-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.paper-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 24px;
}

.paper-list li {
  padding-left: 6px;
}

.paper-list p {
  max-width: 900px;
  margin: 0;
  color: #30383b;
}

.paper-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.paper-actions a {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 9px;
  color: var(--accent-dark);
  font-size: 0.84rem;
  font-weight: 800;
  text-decoration: none;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(28px, 5vw, 60px);
  align-items: start;
}

.split-section p,
.page-title p,
.measure {
  max-width: 700px;
  color: var(--muted);
  font-size: 1.05rem;
}

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

.stat {
  min-height: 132px;
  border-top: 4px solid var(--gold);
  border-radius: 8px;
  padding: 18px;
  background: var(--soft);
}

.stat strong {
  display: block;
  font-size: 2.2rem;
  line-height: 1;
}

.stat span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-weight: 700;
}

.page-title {
  padding-bottom: 32px;
}

.people-section {
  padding-top: 24px;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.member-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.alumni-list-modern {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 22px;
}

.member-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  border-top: 1px solid var(--line);
  padding: 18px 0;
}

.member-photo {
  width: 92px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #eef4f0;
}

.member-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.initials {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--accent-dark);
  font-size: 1.8rem;
  font-weight: 800;
}

.member-copy h3,
.alumni-row h2 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.member-copy p,
.alumni-row p {
  margin: 6px 0 0;
  color: var(--muted);
}

.member-bio {
  max-width: 58rem;
  font-size: 0.94rem;
}

.alumni-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 16px;
}

.alumni-row {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px clamp(20px, 4vw, 48px) 42px;
  color: var(--muted);
  font-size: 0.92rem;
}

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

  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-mark {
    min-height: auto;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 32px;
  }

  .research-list,
  .people-grid,
  .member-list,
  .alumni-list-modern,
  .stat-grid,
  .alumni-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .member-list {
    grid-template-columns: 1fr;
  }

  .research-writeup {
    grid-template-columns: 1fr;
  }

  .news-story {
    grid-template-columns: 1fr;
  }

  .content-page.has-media {
    grid-template-columns: 1fr;
  }

  .content-section.has-media {
    grid-template-columns: 1fr;
  }

  .award-list {
    grid-template-columns: 1fr;
  }

  .research-heading {
    position: static;
  }
}

@media (max-width: 620px) {
  .site-header {
    position: static;
  }

  nav {
    width: 100%;
    justify-content: flex-start;
  }

  .nav-item {
    width: 100%;
  }

  .nav-menu {
    position: static;
    display: grid;
    width: 100%;
    margin: 2px 0 8px;
    box-shadow: none;
  }

  nav a {
    padding: 7px 9px;
  }

  .research-list,
  .people-grid,
  .member-list,
  .alumni-list-modern,
  .stat-grid,
  .alumni-list {
    grid-template-columns: 1fr;
  }

  .publication-links {
    grid-template-columns: 1fr;
  }

  .member-row {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 12px;
  }

  .member-photo {
    width: 72px;
  }
}