:root {
  --ink: #172033;
  --muted: #667085;
  --line: #e4e7ec;
  --accent: #3156d3;
  --accent-soft: #eef2ff;
  --paper: #ffffff;
  --soft: #f8fafc;
}

body {
  color: var(--ink);
  font-size: 1.03rem;
}

.navbar {
  box-shadow: 0 1px 0 rgba(255,255,255,.1);
}

.hero {
  padding: 5.5rem 0 4.5rem;
  max-width: 980px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
  max-width: 950px;
  margin-bottom: 1.5rem;
}

.hero p {
  max-width: 820px;
  font-size: 1.25rem;
  color: var(--muted);
  line-height: 1.75;
}

.hero-kicker {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--accent);
  margin-bottom: 1.15rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 1.5rem 0 3rem;
}

.research-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.5rem;
  background: var(--paper);
  box-shadow: 0 6px 24px rgba(16,24,40,.04);
  transition: transform .15s ease, box-shadow .15s ease;
}

.research-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(16,24,40,.08);
}

.research-card h3 {
  margin-top: 0;
}

.quarto-title-banner {
  background: linear-gradient(135deg, #f7f9fc 0%, #eef2ff 100%);
}

h1, h2, h3 {
  letter-spacing: -0.02em;
}

h2 {
  margin-top: 2.6rem;
}

a {
  text-underline-offset: 3px;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}

.pub-link {
  margin-right: .8rem;
}

blockquote {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 1rem 1.25rem;
  border-radius: 0 10px 10px 0;
}

@media (max-width: 850px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 3.5rem 0 2.5rem;
  }
}