:root {
  --text: #333;
  --muted: #666;
  --accent: #2f6096;
  --accent-dark: #1f4570;
  --line: #e3e3e3;
  --bg: #fff;
  --bar-height: 60px;
  --max: 1080px;
  --prose: 800px;
}

* { box-sizing: border-box; }

html { scroll-padding-top: calc(var(--bar-height) + 16px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Lato", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

img, video { max-width: 100%; height: auto; display: block; }

h1, h2, h3 { color: var(--accent); line-height: 1.25; }
h2 { font-weight: 400; font-size: 28px; margin: 48px 0 16px; }
h3 { font-weight: 400; font-size: 21px; color: var(--text); margin: 28px 0 6px; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--bar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  color: var(--text);
  text-decoration: none;
  font-size: 19px;
  white-space: nowrap;
}
.nav { display: flex; align-items: center; gap: 26px; }
.nav > a,
.dropdown > a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  padding: 18px 0;
}
.nav a:hover, .nav a.active { color: var(--accent); }
.caret { font-size: 11px; }

.dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  right: -12px;
  top: 100%;
  min-width: 290px;
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  padding: 8px 0;
}
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block;
  padding: 7px 18px;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
}
.dropdown-menu a:hover { background: #f3f6fa; color: var(--accent); }

/* ---------- Page body ---------- */
.content {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 24px 40px;
}

.page-title {
  font-weight: 300;
  font-size: 46px;
  margin: 28px 0 24px;
}

/* ---------- Home ---------- */
.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 48px;
  align-items: start;
}
.intro p { margin: 0 0 16px; }
.intro .photo img {
  width: 100%;
  border-radius: 4px;
  margin-top: 36px;
}
.intro .photo-links {
  margin-top: 12px;
  text-align: center;
  font-size: 15px;
  line-height: 1.9;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 36px 28px;
  margin-top: 8px;
}
.card {
  display: block;
  text-decoration: none;
  text-align: center;
}
.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover img {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}
.card span {
  display: block;
  margin-top: 12px;
  font-size: 17px;
  line-height: 1.35;
  color: var(--accent);
}

.bio { border-top: 1px solid var(--line); margin-top: 56px; }
.bio h3 { margin-top: 26px; }
.bio p { margin: 0; color: var(--text); }

/* ---------- Project pages ---------- */
.project .page-title { text-align: center; max-width: 900px; margin-left: auto; margin-right: auto; }
.prose { max-width: var(--prose); margin: 0 auto; }
.prose p { margin: 0 0 18px; }
.prose h2 { font-size: 24px; margin-top: 40px; }

figure { margin: 28px auto 32px; text-align: center; }
figure img, figure video { margin: 0 auto; }
figcaption {
  margin-top: 10px;
  font-size: 14px;
  font-style: italic;
  color: var(--muted);
}
.fig-narrow { max-width: 520px; }
.fig-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.fig-pair figure { margin: 0; }

.project-nav {
  max-width: var(--prose);
  margin: 56px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 15px;
}
.project-nav a { text-decoration: none; }
.project-nav .all { color: var(--muted); }
.project-nav .next { text-align: right; }

/* ---------- Publications ---------- */
.pubs { padding-left: 20px; }
.pubs li { margin-bottom: 12px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 22px 24px 32px;
  text-align: center;
  font-size: 15px;
  color: var(--muted);
}

/* ---------- Small screens ---------- */
@media (max-width: 760px) {
  .topbar { position: static; }
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 0; padding: 10px 16px 0; }
  .brand { white-space: normal; font-size: 18px; }
  .nav { gap: 20px; flex-wrap: wrap; }
  .nav > a, .dropdown > a { padding: 10px 0; }
  .dropdown-menu { right: auto; left: -12px; min-width: 260px; }
  .content { padding: 12px 16px 32px; }
  .page-title { font-size: 34px; margin-top: 16px; }
  .intro { grid-template-columns: 1fr; gap: 0; }
  .intro .photo { max-width: 220px; margin-bottom: 8px; }
  .intro .photo img { margin-top: 0; }
  .intro .photo-links { text-align: left; }
  .fig-pair { grid-template-columns: 1fr; }
  .project-nav { flex-direction: column; }
  .project-nav .next { text-align: left; }
}

.prose-left { margin: 0; max-width: 900px; }