@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,500&family=Source+Sans+3:wght@400;500;600;700&display=swap');

:root {
  --ink: #20261d;
  --paper: #f1f3ea;
  --paper-raised: #ffffff;
  --forest: #2b4536;
  --forest-dark: #1c2f24;
  --ochre: #af8036;
  --moss: #6c7a5e;
  --line: #d9dbcc;
  --max: 760px;
  --wide: 1100px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Source Sans 3', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em 0;
  color: var(--forest-dark);
}

h1 { font-size: 2.6rem; font-weight: 600; }
h2 { font-size: 1.7rem; }
h3 { font-size: 1.25rem; letter-spacing: 0.01em; }

p { margin: 0 0 1.1em 0; }

a {
  color: var(--forest);
  text-decoration-color: var(--ochre);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover { color: var(--ochre); }

ul.plain { list-style: none; margin: 0; padding: 0; }
ul.plain li { margin-bottom: 0.5em; }

/* ---------- Nav ---------- */
header.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(241, 243, 234, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
}
.nav-inner .brand {
  font-family: 'Fraunces', serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--forest-dark);
  text-decoration: none;
}
.nav-links {
  display: flex;
  gap: 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.98rem;
}
.nav-links a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
.nav-links a:hover,
.nav-links a.current {
  color: var(--forest-dark);
  border-bottom-color: var(--ochre);
}

/* ---------- Hero / carousel ---------- */
.carousel {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 7;
  min-height: 260px;
  overflow: hidden;
  background: var(--forest-dark);
}
.carousel-track {
  display: flex;
  width: 400%;
  height: 100%;
  animation: slide 24s infinite;
}
.carousel-slide {
  width: 25%;
  height: 100%;
  position: relative;
}
.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.02);
}
.carousel-caption {
  position: absolute;
  left: 1.5rem;
  bottom: 1.2rem;
  color: #f4f4ec;
  font-size: 0.92rem;
  text-shadow: 0 1px 6px rgba(0,0,0,0.55);
  max-width: 70%;
}
@keyframes slide {
  0%, 21% { transform: translateX(0); }
  25%, 46% { transform: translateX(-25%); }
  50%, 71% { transform: translateX(-50%); }
  75%, 96% { transform: translateX(-75%); }
  100% { transform: translateX(0); }
}
@media (prefers-reduced-motion: reduce) {
  .carousel-track { animation: none; }
  .carousel-slide { display: none; }
  .carousel-slide:first-child { display: block; width: 100%; }
}

.page-hero-img {
  width: 100%;
  max-height: 340px;
  object-fit: cover;
  display: block;
}

/* ---------- Layout ---------- */
main { display: block; }
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.section-wide {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.section-tight { padding-top: 1.5rem; }

.eyebrow-tag {
  color: var(--moss);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--forest-dark);
}

/* ---------- Home: intro cards ---------- */
.card-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.75rem;
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 1.5rem 1rem;
}
.card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1 1 220px;
  max-width: 260px;
}
.card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}
.card-body {
  padding: 1.1rem 1.25rem 1.4rem;
}
.card-body h3 { margin-bottom: 0.5rem; }
.card-body a.card-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--forest);
  border-bottom: 1px solid var(--ochre);
}

/* ---------- Bio / figure-with-text ---------- */
.figure-float {
  float: left;
  width: 200px;
  margin: 0 1.5rem 1rem 0;
  border-radius: 4px;
}
.figure-float.right { float: right; margin: 0 0 1rem 1.5rem; }
.clearfix::after { content: ""; display: table; clear: both; }

/* ---------- Research questions ---------- */
.question-block {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0;
}
.question-block:first-of-type { border-top: none; padding-top: 0.5rem; }
.question-block h4 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-style: italic;
  font-size: 1.15rem;
  color: var(--forest-dark);
  margin-bottom: 0.5rem;
}

/* ---------- Contact / news ---------- */
.contact-list a { font-weight: 600; }
.news-item {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}
.news-item:first-child { border-top: none; }
.news-item .news-headline {
  font-family: 'Fraunces', serif;
  font-style: italic;
  color: var(--forest-dark);
  display: block;
  margin-bottom: 0.25rem;
}

/* ---------- Research project blocks ---------- */
.project {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}
.project:first-of-type { border-top: none; }
.project img {
  width: 100%;
  max-width: 320px;
  border-radius: 4px;
}
.project.img-right img { float: right; margin: 0 0 1rem 1.75rem; }
.project.img-left img { float: left; margin: 0 1.75rem 1rem 0; }

/* ---------- Full-width figure with caption ---------- */
.figure-block {
  width: 100%;
  margin: 1.5rem 0;
  clear: both;
}
.figure-block img {
  width: 100%;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  display: block;
}
.figure-block .figure-caption {
  font-size: 0.85rem;
  color: var(--moss);
  margin-top: 0.6rem;
  line-height: 1.5;
}

/* ---------- Lab members ---------- */
.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 2rem;
  margin: 1.5rem 0 2.5rem;
}
.member-card { text-align: left; }
.member-card img {
  width: 128px;
  height: 128px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: block;
  margin-bottom: 0.85rem;
}
.member-card .no-photo {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  background: var(--paper-raised);
  border: 1px dashed var(--line);
  margin-bottom: 0.85rem;
}
.member-card h3 { font-size: 1.05rem; margin-bottom: 0.2rem; }
.member-card .member-role {
  display: block;
  color: var(--moss);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.member-card p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Publications ---------- */
.pub-group { margin-bottom: 2.5rem; }
.pub-group h4 {
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--moss);
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.5rem;
  margin-bottom: 1.1rem;
}
.pub-list { list-style: none; margin: 0; padding: 0; }
.pub-list li {
  margin-bottom: 1rem;
  padding-left: 0;
}
.pub-list .pdf-link {
  font-size: 0.9rem;
  margin-left: 0.4rem;
}
.pub-legend {
  font-size: 0.85rem;
  color: var(--moss);
  margin: -0.6rem 0 1.1rem 0;
}
.pub-year {
  font-weight: 700;
  color: var(--forest-dark);
  margin-right: 0.5em;
}
.pub-note {
  display: block;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--ochre);
  margin-top: 0.2rem;
}

/* ---------- Teaching ---------- */
.course-list { list-style: none; margin: 0 0 1.5rem; padding: 0; }
.course-list li {
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
}
.course-list li:first-child { border-top: none; }
.course-list .course-meta {
  display: block;
  color: var(--moss);
  font-size: 0.92rem;
  margin-top: 0.15rem;
}
.outreach-item { padding-top: 0.5rem; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  color: var(--moss);
  font-size: 0.9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 780px) {
  .card-row { flex-direction: column; align-items: stretch; }
  .card { max-width: 100%; }
  h1 { font-size: 2rem; }
  .figure-float, .project img { float: none; width: 100%; max-width: 100%; margin: 0 0 1rem 0; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--ochre);
  outline-offset: 2px;
}