@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400&family=Inter:wght@400;500;600&display=swap');

:root {
  --paper: #ffffff;
  --paper-warm: #eef6f4;
  --card: #ffffff;
  --ink: #10302d;
  --ink-soft: #3d5b58;
  --ink-faint: #6e8886;
  --teal: #0d6b62;
  --teal-deep: #0a4d47;
  --turquoise: #2f9c8f;
  --rule: #dfe9e6;
  --rule-soft: #edf3f1;
  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max: 780px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: var(--teal-deep); text-decoration-color: var(--turquoise); text-underline-offset: 3px; }
a:hover { color: var(--teal); }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--teal-deep); color: #fff; padding: 10px 16px; z-index: 200;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---- Layout shell ---- */
.shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  max-width: 1180px;
  margin: 0 auto;
  min-height: 100vh;
}

.shell.with-rail {
  grid-template-columns: 240px minmax(0, 1fr) 320px;
  max-width: 1320px;
}

.sidebar {
  padding: 56px 32px 40px 40px;
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.portrait {
  width: 84px; height: 84px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--card);
  box-shadow: 0 0 0 1px var(--rule), 0 6px 16px rgba(10, 77, 71, 0.12);
  margin-bottom: 22px;
}

.sidebar h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1.25;
  margin: 0 0 4px;
  color: var(--teal-deep);
}

.sidebar .role {
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
  margin: 0 0 28px;
}

nav.primary-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: auto;
}

nav.primary-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 7px 10px;
  margin-left: -10px;
  border-radius: 6px;
  border-left: 2px solid transparent;
}

nav.primary-nav a:hover {
  background: var(--paper-warm);
  color: var(--teal-deep);
}

nav.primary-nav a.active {
  color: var(--teal-deep);
  font-weight: 500;
  border-left: 2px solid var(--teal);
  background: var(--paper-warm);
}

.sidebar-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}

.sidebar-links a {
  font-size: 0.82rem;
  color: var(--ink-soft);
  text-decoration: none;
}
.sidebar-links a:hover { color: var(--teal); text-decoration: underline; }

.menu-toggle { display: none; }

/* ---- Main content ---- */
main {
  padding: 56px 48px 90px;
  min-width: 0;
}

.max { max-width: var(--max); }

.page-heading {
  margin-bottom: 28px;
}

h2.page-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 2rem;
  letter-spacing: -0.01em;
  color: var(--teal-deep);
  margin: 0;
  line-height: 1.15;
  position: relative;
  padding-bottom: 18px;
  display: inline-block;
}

h2.page-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--teal), var(--turquoise));
}

.page-tag {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--teal);
  background: var(--paper-warm);
  border-radius: 12px;
  padding: 3px 11px;
  margin-bottom: 10px;
}

.lede {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 10px 0 30px;
}

section.block { margin-bottom: 52px; }

h3.block-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--teal-deep);
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}

/* bio */
.bio p { margin: 0 0 16px; max-width: var(--max); }
.bio a { }

.status-banner {
  background: var(--paper-warm);
  border-left: 3px solid var(--turquoise);
  padding: 14px 18px;
  border-radius: 4px;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: 22px 0 30px;
  max-width: var(--max);
}
.status-banner strong { color: var(--teal-deep); }

.affil {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 20px 0 0;
}

/* News list — tightened vertical rhythm */
.news-list { display: flex; flex-direction: column; }

.news-item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  padding: 12px 0 12px 14px;
  border-bottom: 1px solid var(--rule-soft);
  border-left: 3px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.news-item:hover { border-left-color: var(--turquoise); background: var(--paper-warm); }
.news-item:first-child { padding-top: 0; }

.news-date {
  font-size: 0.78rem;
  color: var(--ink-faint);
  padding-top: 2px;
  white-space: nowrap;
}

.news-title {
  font-size: 0.97rem;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 3px;
}

.news-body {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.55;
}

.news-toggle-wrap { margin-top: 18px; }

button.text-toggle {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--teal-deep);
  background: none;
  border: 1px solid var(--rule);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
}
button.text-toggle:hover { background: var(--paper-warm); border-color: var(--turquoise); transform: translateY(-1px); }
button.text-toggle { transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease; }

.news-hidden { display: none; }

/* Upcoming talks/travel */
.travel-list { display: flex; flex-direction: column; gap: 4px; }

.travel-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.travel-item:last-child { border-bottom: none; }

.travel-date {
  font-size: 0.82rem;
  color: var(--turquoise);
  font-weight: 500;
}

.travel-title { margin: 0 0 2px; font-weight: 500; font-size: 0.95rem; }
.travel-loc { margin: 0; font-size: 0.85rem; color: var(--ink-faint); }

.empty-state {
  padding: 24px;
  border: 1px dashed var(--rule);
  border-radius: 8px;
  color: var(--ink-faint);
  font-size: 0.9rem;
  text-align: center;
}

/* Publications / Press / Talks lists */
.pub-group { margin-bottom: 34px; }
.pub-group h4 {
  font-family: var(--sans);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--turquoise);
  text-transform: uppercase;
  margin: 0 0 14px;
}

.pub-entry {
  padding: 11px 0 11px 14px;
  border-bottom: 1px solid var(--rule-soft);
  border-left: 3px solid transparent;
  font-size: 0.93rem;
  line-height: 1.55;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.pub-entry:hover { border-left-color: var(--turquoise); background: var(--paper-warm); }
.pub-entry:last-child { border-bottom: none; }
.pub-entry .authors { color: var(--ink); }
.pub-entry .venue { color: var(--ink-soft); }
.pub-entry .award {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--teal-deep);
  background: var(--paper-warm);
  padding: 2px 8px;
  border-radius: 10px;
}
.pub-entry a { font-size: 0.86rem; }

.press-entry { padding: 12px 0 12px 14px; border-bottom: 1px solid var(--rule-soft); border-left: 3px solid transparent; transition: border-color 0.2s ease, background 0.2s ease; }
.press-entry:hover { border-left-color: var(--turquoise); background: var(--paper-warm); }
.press-entry:last-child { border-bottom: none; }
.press-entry .p-title { font-weight: 500; margin: 0 0 3px; }
.press-entry .p-meta { font-size: 0.85rem; color: var(--ink-faint); margin: 0; }

.talk-entry { padding: 12px 0 12px 14px; border-bottom: 1px solid var(--rule-soft); border-left: 3px solid transparent; transition: border-color 0.2s ease, background 0.2s ease; }
.talk-entry:hover { border-left-color: var(--turquoise); background: var(--paper-warm); }
.talk-entry:last-child { border-bottom: none; }
.talk-entry .t-venue { font-weight: 500; margin: 0 0 3px; }
.talk-entry .t-meta { font-size: 0.85rem; color: var(--ink-faint); margin: 0; }
.talk-entry .t-title { font-size: 0.88rem; color: var(--ink-soft); margin: 3px 0 0; font-style: italic; }

.note-box {
  background: var(--paper-warm);
  border-radius: 6px;
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-bottom: 26px;
  max-width: var(--max);
}

/* Study page */
.study-callout {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 26px 28px;
  margin-bottom: 34px;
  max-width: var(--max);
  box-shadow: 0 4px 16px rgba(10, 77, 71, 0.06);
}
.study-callout p { margin: 0 0 14px; }
.study-callout p:last-child { margin-bottom: 0; }

.btn-primary {
  display: inline-block;
  background: var(--teal-deep);
  color: #fff !important;
  text-decoration: none !important;
  padding: 11px 22px;
  border-radius: 24px;
  font-size: 0.9rem;
  font-weight: 500;
}
.btn-primary:hover { background: var(--teal); box-shadow: 0 6px 16px rgba(10, 77, 71, 0.2); transform: translateY(-1px); }
.btn-primary { transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease; }

.study-detail dt {
  font-weight: 500;
  color: var(--teal-deep);
  margin-top: 16px;
  font-size: 0.92rem;
}
.study-detail dd { margin: 4px 0 0; color: var(--ink-soft); font-size: 0.92rem; }

/* ---- News/Events rail (sidebar) ---- */
.news-rail {
  padding: 56px 32px 40px 0;
  border-left: 1px solid var(--rule);
}

.rail-block { margin-bottom: 40px; }

.rail-title {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--turquoise);
  margin: 0 0 16px;
  padding-left: 20px;
}

.rail-travel-item {
  padding: 10px 0 10px 17px;
  border-bottom: 1px solid var(--rule-soft);
  border-left: 3px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.rail-travel-item:hover { border-left-color: var(--turquoise); background: var(--paper-warm); }
.rail-travel-item:last-child { border-bottom: none; }
.rail-travel-item .travel-date { font-size: 0.76rem; }
.rail-travel-item .travel-title { font-size: 0.87rem; margin: 2px 0 1px; }
.rail-travel-item .travel-loc { font-size: 0.78rem; }

.rail-empty {
  margin: 0 0 0 20px;
  padding: 16px;
  border: 1px dashed var(--rule);
  border-radius: 8px;
  color: var(--ink-faint);
  font-size: 0.82rem;
}

.rail-news-item {
  padding: 10px 0 10px 17px;
  border-bottom: 1px solid var(--rule-soft);
  border-left: 3px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.rail-news-item:hover { border-left-color: var(--turquoise); background: var(--paper-warm); }
.rail-news-item:last-child { border-bottom: none; }
.rail-news-item .news-date { font-size: 0.74rem; padding-top: 0; }
.rail-news-item .news-title { font-size: 0.85rem; margin: 2px 0 3px; }
.rail-news-item .news-body { font-size: 0.8rem; line-height: 1.5; }

.rail-toggle-wrap { padding-left: 20px; margin-top: 6px; }

button.rail-toggle {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--teal-deep);
  background: none;
  border: 1px solid var(--rule);
  padding: 6px 14px;
  border-radius: 16px;
  cursor: pointer;
}
button.rail-toggle:hover { background: var(--paper-warm); }

/* Lab roster */
.roster-group { margin-bottom: 38px; }

.roster-group h4 {
  font-family: var(--sans);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--turquoise);
  text-transform: uppercase;
  margin: 0 0 16px;
}

.roster-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.roster-card {
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 20px;
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 1px 2px rgba(10, 77, 71, 0.04);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.roster-card:hover {
  box-shadow: 0 8px 20px rgba(10, 77, 71, 0.08);
  transform: translateY(-2px);
  border-color: var(--turquoise);
}

.roster-top {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.roster-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  flex-shrink: 0;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-align: center;
  line-height: 1.2;
}

.roster-name {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-faint);
  margin: 0 0 3px;
  font-style: italic;
}

.roster-meta {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0;
}

.roster-desc {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0;
}

.roster-website {
  font-size: 0.82rem;
  color: var(--teal-deep);
  text-decoration: none;
  border-top: 1px solid var(--rule-soft);
  padding-top: 10px;
  margin-top: auto;
}
.roster-website:hover { text-decoration: underline; }
.roster-website.placeholder {
  color: var(--ink-faint);
  font-style: italic;
  text-decoration: none;
  cursor: default;
}

.roster-card.pi {
  background: var(--paper-warm);
  border-color: var(--rule);
}
.roster-card.pi .roster-name {
  font-style: normal;
  color: var(--teal-deep);
  font-weight: 600;
}
.roster-card.pi .roster-meta { color: var(--ink-soft); }
.roster-card.pi .roster-website { border-top-color: var(--rule); }

.alumni-list {
  columns: 2;
  column-gap: 40px;
  max-width: var(--max);
}
.alumni-list li {
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 1px solid var(--rule-soft);
  break-inside: avoid;
  list-style: none;
}

footer.site-footer {
  max-width: var(--max);
  padding-top: 30px;
  margin-top: 40px;
  border-top: 1px solid var(--rule);
  font-size: 0.82rem;
  color: var(--ink-faint);
}

/* Responsive */
@media (max-width: 1100px) and (min-width: 861px) {
  .shell.with-rail { grid-template-columns: 220px minmax(0, 1fr) 260px; }
}

@media (max-width: 860px) {
  .shell, .shell.with-rail { grid-template-columns: 1fr; }
  .news-rail {
    border-left: none;
    border-top: 1px solid var(--rule);
    padding: 30px 22px 50px;
  }
  .rail-title, .rail-empty, .rail-travel-item, .rail-news-item, .rail-toggle-wrap { padding-left: 0; margin-left: 0; }
  .sidebar {
    position: relative;
    height: auto;
    padding: 22px 24px 18px;
    border-bottom: 1px solid var(--rule);
  }
  .portrait { width: 56px; height: 56px; margin-bottom: 14px; }
  nav.primary-nav { display: none; flex-direction: column; }
  nav.primary-nav.open { display: flex; }
  .sidebar-links { display: none; }
  nav.primary-nav.open ~ .sidebar-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-wrap: nowrap;
    border-top: 1px solid var(--rule);
    margin-top: 8px;
    padding-top: 8px;
  }
  nav.primary-nav.open ~ .sidebar-links a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.95rem;
    padding: 7px 10px;
    margin-left: -10px;
    border-radius: 6px;
  }
  nav.primary-nav.open ~ .sidebar-links a:hover {
    background: var(--paper-warm);
    color: var(--teal-deep);
    text-decoration: none;
  }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: 1px solid var(--rule);
    color: var(--teal-deep);
    font-family: var(--sans);
    font-size: 0.85rem;
    padding: 8px 14px;
    border-radius: 20px;
    cursor: pointer;
    margin-bottom: 14px;
    width: fit-content;
  }
  main { padding: 34px 22px 60px; }
  h2.page-title { font-size: 1.55rem; }
  .news-item, .travel-item { grid-template-columns: 1fr; gap: 4px; }
  .news-date, .travel-date { padding-top: 0; }
}

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}