:root {
  --text: #222;
  --muted: #666;
  --border: #e6e6e6;
  --soft-bg: #f7f9fb;
  --accent: #2a6f97;
  --accent-dark: #174866;
  --card-bg: #ffffff;
  --radius: 18px;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: #fff;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.96);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
}

.site-header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-title {
  font-weight: 750;
  font-size: 1.35rem;
  letter-spacing: -0.015em;
  color: var(--text);
}
.site-title:hover { text-decoration: none; }

.site-nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}
.site-nav a { color: #333; }
.site-nav a[aria-current="page"] { color: var(--accent); font-weight: 650; }

.hero {
  min-height: 420px;
  background:
    linear-gradient(90deg, rgba(12, 25, 34, 0.88), rgba(12, 25, 34, 0.58), rgba(12, 25, 34, 0.22)),
    url('../images/hero.webp') center / cover no-repeat;
  color: #fff;
  display: flex;
  align-items: center;
}

.hero-inner {
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
  padding: 58px 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #b9e0ef;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

h1 {
  font-size: clamp(2.0rem, 4vw, 3.25rem);
  line-height: 1.08;
  margin: 0 0 18px;
  letter-spacing: -0.04em;
  max-width: 780px;
}

.hero-lead {
  font-size: 1.1rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.88);
  max-width: 610px;
  margin: 0;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  padding: 11px 18px;
  border-radius: 999px;
  font-weight: 650;
}
.button:hover { background: var(--accent-dark); text-decoration: none; }
.button-secondary { background: rgba(255,255,255,0.92); color: var(--accent-dark); }
.button-secondary:hover { background: #fff; }

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 42px 24px;
}

.research-section { padding-top: 34px; }

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}
.section-heading h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.25rem);
  line-height: 1.1;
  margin: 0 0 10px;
  letter-spacing: -0.025em;
}
.section-heading p { margin: 0; color: var(--muted); }
.section-heading.compact { margin-bottom: 18px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.image-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  color: var(--text);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.image-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); text-decoration: none; }
.image-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.image-card div { padding: 12px 16px; display: flex; align-items: center; }
.image-card h3 { margin: 0; font-size: 1.15rem; line-height:; 1.15; font-weight: 600; }

.latest-section {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 36px;
  align-items: start;
  background: var(--soft-bg);
  max-width: none;
  padding-left: max(24px, calc((100vw - 1120px) / 2 + 24px));
  padding-right: max(24px, calc((100vw - 1120px) / 2 + 24px));
}
.latest-image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.latest-publications { display: grid; gap: 14px; }
.latest-card {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  padding: 16px 18px;
}
.latest-card h3 { margin: 0 0 6px; font-size: 1rem; line-height: 1.35; }
.latest-card .meta { color: var(--muted); font-size: 0.92rem; }
.latest-card .links { margin-top: 6px; font-size: 0.92rem; }
.year-badge { display: inline-block; color: var(--accent-dark); font-weight: 700; font-size: 0.78rem; margin-bottom: 4px; }
.section-link { margin-top: 18px; font-weight: 650; }
.muted { color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 860px) {
  .site-header-inner { align-items: flex-start; flex-direction: column; }
  .hero { min-height: 440px; }
  .card-grid, .latest-section { grid-template-columns: 1fr; }
}

/* Add these rules to the end of css/site.css */

.page-intro {
  max-width: 1120px;
  margin: 0 auto;
  padding: 46px 24px 18px;
}

.page-intro h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.08;
  margin: 0 0 16px;
  letter-spacing: -0.035em;
}

.page-intro p:last-child {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0;
}

.research-nav-section {
  padding-top: 22px;
  padding-bottom: 34px;
}

.research-nav-grid .image-card img {
  aspect-ratio: 16 / 10;
}

.research-section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px;
  border-top: 1px solid var(--border);
}

.research-section.alt-section {
  background: var(--soft-bg);
  max-width: none;
  padding-left: max(24px, calc((100vw - 1120px) / 2 + 24px));
  padding-right: max(24px, calc((100vw - 1120px) / 2 + 24px));
}

.research-copy {
  max-width: 820px;
}

.research-copy h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.12;
  margin: 0 0 18px;
  letter-spacing: -0.025em;
}

.research-copy h3 {
  font-size: 1.25rem;
  margin: 28px 0 8px;
}

.research-copy p {
  color: var(--muted);
  font-size: 1.02rem;
  margin: 0 0 16px;
}

.media-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.media-grid.two-up {
  grid-template-columns: repeat(2, 1fr);
}

.media-grid figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(0,0,0,0.04);
}

.media-grid img,
.media-grid video {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.media-grid figcaption {
  padding: 12px 14px 14px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.back-link {
  margin-top: 24px;
  font-weight: 650;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 860px) {
  .media-grid,
  .media-grid.two-up {
    grid-template-columns: 1fr;
  }

  .page-intro {
    padding-top: 34px;
  }

  .research-section {
    padding-top: 42px;
    padding-bottom: 42px;
  }
}
@media (max-width: 700px) {
  .site-header-inner {
    gap: 12px;
  }

  .site-title {
    font-size: 1.15rem;
  }

  .site-nav {
    width: 100%;
    gap: 10px;
    font-size: 0.9rem;
  }

  .site-nav a {
    padding: 4px 0;
  }

  .site-nav a[href="publications.html"] {
    font-size: 0;
  }

  .site-nav a[href="publications.html"]::after {
    content: "Pubs";
    font-size: 0.85rem;
  }


  h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .hero {
    min-height: 420px;
  }

  .hero-overlay {
    padding: 34px 22px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .latest-section,
  .research-split,
  .people-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .pub-row {
    grid-template-columns: column;
  }

  .pub-side {
    margin-top: 10px;
  }
}
}