:root {
  --bg: #0d1526;
  --bg-soft: #15233d;
  --surface: #ffffff;
  --surface-alt: #cdebfa;
  --surface-tint: #eef3fb;
  --text: #162132;
  --muted: #56647c;
  --border: #d8e0ec;
  --brand: #183f7a;
  --brand-2: #325b99;
  --accent: #dde8fb;
  --shadow: 0 18px 50px rgba(16, 28, 52, 0.08);
  --shadow-soft: 0 10px 28px rgba(16, 28, 52, 0.06);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-2); }
img { display: block; width: 100%; height: auto; }

.container {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}
.narrow { width: min(820px, calc(100% - 2rem)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(205,235,250,0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(216, 224, 236, 0.9);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand {
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.18rem;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.8rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-nav a {
  color: var(--muted);
  font-weight: 600;
}

h1, h2, h3, h4 {
  font-family: 'Source Serif 4', Georgia, serif;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 0.9rem;
  color: #0f1b2f;
}

h1 { font-size: clamp(2.7rem, 5.8vw, 4.8rem); }
h2 { font-size: clamp(1.9rem, 3.7vw, 2.75rem); }
h3 { font-size: 1.35rem; }

p { margin: 0 0 1rem; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 1rem;
}

.lede {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 64ch;
}

.hero {
  padding: 4.75rem 0 3rem;
  background: linear-gradient(180deg, #f7f9fd 0%, #ffffff 72%);
}

.hero-grid,
.two-col,
.footer-grid,
.split-grid,
.media-grid,
.page-head-grid,
.feature-grid {
  display: grid;
  gap: 2rem;
}

.hero-grid { grid-template-columns: 1.2fr 0.9fr; align-items: start; }
.two-col { grid-template-columns: 1fr 1fr; }
.split-grid { grid-template-columns: 1.15fr 0.85fr; }
.media-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.page-head-grid { grid-template-columns: 1.1fr 0.9fr; align-items: end; }
.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.footer-grid { grid-template-columns: 1.3fr auto auto; align-items: start; }

.hero-name {
  font-size: clamp(2.85rem, 6.2vw, 4.95rem);
  margin-bottom: 0.35rem;
}

.hero-role {
  font-size: clamp(1.15rem, 2.3vw, 1.55rem);
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.7rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.92rem 1.3rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.button:hover { transform: translateY(-1px); }
.button.primary {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow);
}
.button.secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: #fff;
}

.card,
.panel,
.person-card,
.paper-block,
.metric,
.link-card,
.image-frame,
.callout,
.list-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.panel,
.card,
.paper-block,
.person-card,
.metric,
.callout,
.list-card { padding: 1.45rem; }

.hero-sidebar {
  display: grid;
  gap: 1rem;
}

.group-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:30px;
}

.group-member{
  background:#ffffff;
  padding:20px;
  border-radius:6px;
  text-align:center;
  box-shadow:0 4px 10px rgba(0,0,0,0.05);
}

.image-frame {
  overflow: hidden;
}

.figure-img {
  aspect-ratio: 4 / 3;
  object-fit: contain;
}

.figure-img-cover {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}


.figure-tall { aspect-ratio: 4 / 5; }
.figure-wide { aspect-ratio: 16 / 9; }

.figure-caption {
  padding: 0.9rem 1.05rem 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.fact-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.fact-list dt {
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.fact-list dd {
  margin: 0;
  font-weight: 700;
}

.section { padding: 4rem 0; }
.section.alt { background: var(--surface-alt); }
.section-heading { margin-bottom: 1.5rem; }
.section-heading p { color: var(--muted); margin: 0; }

.research-list {
  display: grid;
  gap: 1rem;
}
.research-item {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.research-item:last-child { border-bottom: 0; padding-bottom: 0; }
.research-item h3 { margin-bottom: 0.45rem; }
.research-item p { color: var(--muted); margin: 0; }

.card-grid { display: grid; gap: 1.2rem; }
.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.news-list,
.simple-list,
.paper-list,
.link-list { margin: 0; padding-left: 1.2rem; }
.news-list li,
.simple-list li,
.paper-list li,
.link-list li { margin-bottom: 0.8rem; }
.news-list span {
  display: inline-block;
  min-width: 9rem;
  color: var(--brand);
  font-weight: 700;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}
.metric-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  margin-bottom: 0.35rem;
}
.metric-label { color: var(--muted); }

.link-cards { display: grid; gap: 1rem; }
.link-card { display: block; padding: 1.2rem 1.25rem; color: inherit; }
.link-card p { color: var(--muted); margin: 0; }

.kicker {
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.muted { color: var(--muted); }
.stack { display: grid; gap: 1rem; }

.site-footer {
  background: var(--bg);
  color: #d8e2f5;
  padding: 2rem 0;
}
.site-footer a { color: #d8e2f5; }
.site-footer.minimal { padding: 1.25rem 0; }
.footer-links {
  display: grid;
  gap: 0.35rem;
}
.footer-note {
  color: #b8c6e3;
  max-width: 28ch;
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .two-col,
  .split-grid,
  .page-head-grid,
  .three-up,
  .two-up,
  .media-grid,
  .feature-grid,
  .metrics-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
  .fact-list { grid-template-columns: 1fr; }
  .hero { padding-top: 3.5rem; }
  .news-list span {
    min-width: 0;
    display: block;
    margin-bottom: 0.15rem;
  }
}


.news-list.compact li { margin-bottom: 0.85rem; }
.news-list.compact li:last-child { margin-bottom: 0; }
.news-list span { font-weight: 700; color: var(--text); }
.stack { display: grid; gap: 1.2rem; }
.text-columns { columns: 2; column-gap: 2rem; }
.text-columns li { break-inside: avoid; margin-bottom: 0.65rem; }
.person-card p { margin: 0.35rem 0 0; }
.person-card .subtle { color: var(--muted); font-size: 0.96rem; }
.metric-note { color: var(--muted); margin-top: 1rem; }
.paper-list li { margin-bottom: 1rem; }
.paper-list li:last-child { margin-bottom: 0; }
.inline-note { color: var(--muted); font-size: 0.96rem; }
.contact-strip { display: flex; flex-wrap: wrap; gap: 0.8rem 1.2rem; color: var(--muted); font-size: 0.98rem; margin-top: 1.15rem; }
.hero .image-frame { background: var(--surface); }
@media (max-width: 900px) {
  .hero-grid, .two-col, .footer-grid, .split-grid, .media-grid, .page-head-grid, .feature-grid, .three-up, .two-up {
    grid-template-columns: 1fr;
  }
  .text-columns { columns: 1; }
}