/* Pan Lab · Science & Discovery design system
   Edit the variables below to make site-wide colour and spacing changes. */
:root {
  --teal-950: #10383d;
  --teal-900: #16484d;
  --teal-700: #267078;
  --teal-100: #e6f0ee;
  --sage-100: #f2f6f3;
  --ink: #203437;
  --muted: #617376;
  --line: #dce6e3;
  --paper: #ffffff;
  --max-width: 1160px;
  --radius: 18px;
  --shadow: 0 12px 36px rgba(16, 56, 61, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--teal-700); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--teal-950); }
a:focus-visible { outline: 3px solid #d5a84c; outline-offset: 3px; border-radius: 3px; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  padding: 16px max(24px, calc((100vw - var(--max-width)) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.97);
}
.brand { flex: 0 1 340px; display: inline-flex; align-items: center; }
.brand img, .brand svg { display: block; width: auto; height: auto; max-width: 100%; max-height: 82px; object-fit: contain; }
.topnav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 5px 8px; }
.topnav a {
  display: inline-block;
  padding: 10px 12px;
  color: var(--ink);
  border-radius: 8px;
  font-size: .94rem;
  font-weight: 600;
  line-height: 1.25;
  text-decoration: none;
}
.topnav a:hover { background: var(--sage-100); color: var(--teal-950); }
.topnav a.active, .topnav a[aria-current="page"] { background: var(--teal-100); color: var(--teal-950); }
.page-shell { max-width: var(--max-width); margin: 0 auto; padding: 54px 28px 72px; }
.hero {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  min-height: 400px;
  overflow: hidden;
  border-radius: 24px;
  background: var(--teal-950);
  color: #fff;
  box-shadow: var(--shadow);
}
.hero-copy { align-self: center; padding: clamp(30px, 5vw, 64px); }
.eyebrow {
  margin: 0 0 12px;
  color: var(--teal-700);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .15em;
  line-height: 1.4;
  text-transform: uppercase;
}
.hero .eyebrow { color: #a9d7cd; }
.hero h1 { max-width: 680px; margin: 0 0 20px; font-size: clamp(2.25rem, 4vw, 3.75rem); font-weight: 720; letter-spacing: -.04em; line-height: 1.07; }
.hero-copy p { max-width: 640px; margin: 0 0 22px; color: #e0eeeb; font-size: 1.05rem; }
.hero-image { min-height: 300px; position: relative; background: #254e50; }
.hero-image img { width: 100%; height: 100%; min-height: 300px; object-fit: cover; }
.hero-image::after { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, rgba(16,56,61,.22), transparent 55%); pointer-events: none; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.button-link {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 10px 17px; border-radius: 999px;
  border: 1px solid transparent; background: #d3e9e2; color: var(--teal-950);
  font-weight: 750; text-decoration: none;
}
.button-link:hover { background: #fff; color: var(--teal-950); }
.button-link.secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.button-link.secondary:hover { background: rgba(255,255,255,.12); }
.section { margin-top: 64px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.section-heading h2, .page-intro h1 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.55rem); letter-spacing: -.035em; line-height: 1.15; }
.section-heading p { max-width: 550px; margin: 8px 0 0; color: var(--muted); }
.text-link { display: inline-flex; gap: 8px; align-items: center; margin-top: 12px; font-weight: 750; text-decoration: none; }
.focus-grid, .publication-grid, .news-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.focus-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.publication-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.focus-card, .publication-card, .news-card {
  min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  transition: transform .18s ease, box-shadow .18s ease;
}
.publication-card { display: flex; flex-direction: column; }
.focus-card:hover, .publication-card:hover, .news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-image, .news-image { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--sage-100); }
.card-image img, .news-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.focus-card:hover img, .news-card:hover img { transform: scale(1.025); }
.card-body, .publication-body, .news-card-body { padding: 20px 21px 23px; }
.card-body h3, .publication-body h2, .news-card-body h2 { margin: 0 0 10px; font-size: 1.08rem; line-height: 1.38; letter-spacing: -.012em; }
.card-body p, .publication-body p, .news-card-body p { margin: 0; color: var(--muted); font-size: .93rem; }
.card-body a, .publication-body h2 a, .news-card-body h2 a { color: var(--ink); text-decoration: none; }
.card-body a:hover, .publication-body h2 a:hover, .news-card-body h2 a:hover { color: var(--teal-700); }
.page-intro { max-width: 790px; margin-bottom: 34px; }
.page-intro > p:last-child { max-width: 700px; margin: 16px 0 0; color: var(--muted); font-size: 1.08rem; }
.page-intro h1 { font-size: clamp(2.25rem, 4vw, 3.25rem); }
.research-section { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); align-items: center; gap: 36px; padding: 30px 0; border-top: 1px solid var(--line); }
.research-section:nth-of-type(even) { grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); }
.research-section:nth-of-type(even) .research-visual { order: 2; }
.research-visual { overflow: hidden; border-radius: var(--radius); background: var(--sage-100); }
.research-visual img { width: 100%; max-height: 420px; object-fit: cover; }
.research-copy h2 { margin: 0 0 12px; font-size: clamp(1.45rem, 2.4vw, 2rem); line-height: 1.25; }
.research-copy p { margin: 0 0 14px; color: var(--muted); }
.approach-group + .approach-group { margin-top: 42px; }
.page-meta, .news-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 10px; color: var(--muted); font-size: .8rem; }
.page-meta span, .news-meta span { color: var(--teal-700); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.publication-body { display: flex; flex: 1; flex-direction: column; align-items: stretch; min-height: 145px; }
.publication-body h2 { font-size: 1.02rem; }
.publication-body .page-meta { width: 100%; margin-top: auto; padding-top: 16px; margin-bottom: 0; }
.publication-body .page-meta span { color: var(--teal-700); font-weight: 700; letter-spacing: normal; text-transform: none; }

.other-contributions { margin-top: 40px; border-top: 1px solid var(--line); padding-top: 25px; }
.other-contributions h2 { font-size: 1.3rem; }
.compact-list { margin: 0; padding-left: 22px; color: var(--muted); }
.compact-list li { padding: 6px 0; }
.team-group { margin-top: 42px; }
.team-group h2 { margin: 0 0 18px; font-size: 1.5rem; }
.team-list { border-top: 1px solid var(--line); }
.team-list-first { border-top: 0; }
.person-row { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 22px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.person-photo { width: 112px; height: 126px; border-radius: 12px; object-fit: cover; background: var(--sage-100); }
.person-info h3 { margin: 0 0 2px; font-size: 1.12rem; }
.person-role { margin: 0 0 10px; color: var(--teal-700); font-size: .9rem; font-weight: 750; }
.person-info p { max-width: 850px; margin: 6px 0; color: var(--muted); }
.person-links { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 10px; font-size: .9rem; font-weight: 650; }
.person-links a { text-decoration: none; }
.alumni-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 28px; margin: 0; padding-left: 20px; color: var(--muted); }
.news-card-body { min-height: 230px; display: flex; flex-direction: column; align-items: flex-start; }
.news-card-body h2 { font-size: 1.12rem; }
.news-card-body .text-link { margin-top: auto; padding-top: 16px; }
.news-card-auto { display: flex; flex-direction: column; }
.news-card-auto .news-card-body { flex: 1; }
.news-auto-visual { display: flex; width: 100%; aspect-ratio: 16 / 10; flex-direction: column; justify-content: center; gap: 12px; overflow: hidden; padding: clamp(20px, 2.4vw, 30px); }
.news-auto-placeholder { align-items: flex-start; background: var(--sage-100); color: var(--teal-700); }
.news-auto-placeholder span { font-size: 1.1rem; font-weight: 800; line-height: 1.25; letter-spacing: -.025em; }
.news-auto-feature { background: var(--teal-950); color: #fff; }
.news-auto-feature .eyebrow { margin: 0; color: #a9d7cd; }
.news-auto-feature strong { font-size: clamp(1.45rem, 2.6vw, 2.05rem); line-height: 1.1; letter-spacing: -.05em; }
.news-auto-feature p:last-child { margin: 0; color: #e0eeeb; font-size: .86rem; line-height: 1.45; }
.news-card-auto .news-meta span { font-weight: 700; letter-spacing: normal; text-transform: none; }
.news-feed-note { color: var(--muted); }
.news-note { margin-top: 44px; padding: 25px; border-radius: 14px; background: var(--sage-100); }
.news-note h2 { margin-top: 0; font-size: 1.25rem; }
.news-note p { margin-bottom: 0; color: var(--muted); }

.news-feature { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(250px, .8fr); align-items: center; gap: clamp(24px, 4vw, 48px); margin-bottom: 58px; padding: clamp(24px, 4vw, 42px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--sage-100); }
.news-feature-copy .news-meta { justify-content: flex-start; margin-bottom: 12px; }
.news-feature h2 { margin: 0 0 14px; color: var(--teal-950); font-size: clamp(1.5rem, 2.6vw, 2.15rem); line-height: 1.25; letter-spacing: -.025em; }
.news-feature-copy > p:not(.news-meta) { max-width: 720px; margin: 0; color: var(--muted); }
.news-feature-panel { display: flex; min-height: 230px; flex-direction: column; justify-content: center; padding: 28px; border-radius: 14px; background: var(--teal-950); color: #fff; }
.news-feature-panel .eyebrow { color: #a9d7cd; }
.news-feature-panel p:last-child { margin: 0; color: #e0eeeb; }
.news-feature-equation { margin: 12px 0 14px; font-size: clamp(1.65rem, 3.4vw, 2.6rem); font-weight: 800; letter-spacing: -.05em; line-height: 1.1; }
.news-feature-equation span { color: #a9d7cd; }
.news-timeline { margin-top: 12px; }
.news-timeline-list { border-top: 1px solid var(--line); }
.news-timeline-item { display: grid; grid-template-columns: 122px 172px minmax(0, 1fr); align-items: start; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.news-timeline-item.no-image { grid-template-columns: 122px minmax(0, 1fr); }
.news-timeline-date { padding-top: 3px; color: var(--teal-700); font-size: .9rem; font-weight: 800; }
.news-timeline-thumb { display: block; overflow: hidden; aspect-ratio: 4 / 3; border-radius: 12px; background: var(--sage-100); }
.news-timeline-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .2s ease; }
.news-timeline-thumb:hover img { transform: scale(1.03); }
.news-timeline-copy h3 { margin: 0 0 6px; font-size: 1.08rem; line-height: 1.35; }
.news-timeline-copy p:not(.news-timeline-category) { margin: 0; color: var(--muted); }
.news-timeline-category { margin: 0 0 5px; color: var(--teal-700); font-size: .74rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
@media (max-width: 900px) {
  .news-feature { grid-template-columns: 1fr; }
  .news-feature-panel { min-height: 180px; }
}
@media (max-width: 600px) {
  .news-timeline-item, .news-timeline-item.no-image { grid-template-columns: 1fr; gap: 10px; padding: 20px 0; }
  .news-timeline-thumb { max-width: 220px; }
  .news-feature { margin-bottom: 44px; padding: 20px; }
  .news-timeline { margin-top: 6px; }
}

.join-content { max-width: 900px; }
.join-content h2, .join-content h3 { margin: 34px 0 12px; color: var(--teal-950); line-height: 1.3; }
.join-content p { color: var(--muted); }
.join-content li { margin-bottom: 8px; padding-left: 3px; color: var(--muted); }
.join-content hr { margin: 34px 0; border: 0; border-top: 1px solid var(--line); }
.site-footer {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px 20px;
  padding: 22px max(24px, calc((100vw - var(--max-width)) / 2));
  border-top: 1px solid var(--line); color: var(--muted); font-size: .86rem;
}
.site-footer a { font-weight: 700; text-decoration: none; }

@media (max-width: 900px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 14px; }
  .topnav { justify-content: flex-start; }
  .hero { grid-template-columns: 1fr; }
  .hero-image { max-height: 310px; }
  .hero-image img { min-height: 280px; max-height: 310px; }
  .focus-grid, .publication-grid, .news-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 600px) {
  body { font-size: 15px; }
  .site-header { padding: 14px 18px; }
  .brand img, .brand svg { max-height: 58px; max-width: 290px; }
  .topnav { gap: 4px; }
  .topnav a { padding: 9px 10px; font-size: .88rem; }
  .page-shell { padding: 30px 18px 48px; }
  .hero { border-radius: 17px; }
  .hero-copy { padding: 30px 24px; }
  .hero h1 { font-size: 2.35rem; }
  .hero-image, .hero-image img { min-height: 220px; }
  .section { margin-top: 44px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
  .focus-grid, .publication-grid, .news-grid { grid-template-columns: 1fr; gap: 16px; }
  .research-section, .research-section:nth-of-type(even) { grid-template-columns: 1fr; gap: 18px; }
  .research-section:nth-of-type(even) .research-visual { order: 0; }
  .person-row { grid-template-columns: 78px minmax(0,1fr); gap: 14px; }
  .person-photo { width: 78px; height: 92px; }
  .alumni-list { grid-template-columns: 1fr; }
  .site-footer { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* People page refinement: compact top spacing and no rule above the PI profile. */
body.people-page .page-shell { padding-top: 5px; }
body.people-page .team-group:first-child { margin-top: 0; }
body.people-page .team-list-first { border-top: 0 !important; }
body.people-page .team-list-first .person-row { border-top: 0 !important; }
@media (max-width: 600px) {
  body.people-page .page-shell { padding-top: 4px; }
}

/* Join page: numbered sections, campus imagery, and clear application pathways. */
body.join-page .page-shell { padding-top: 38px; }
body.join-page .page-intro { max-width: 900px; margin-bottom: 42px; }
body.join-page .page-intro h1 { margin-bottom: 16px; }
body.join-page .page-intro > p { max-width: 820px; }
.join-section {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 26px;
  margin-top: 0;
  padding: 34px 0 10px;
  border-top: 1px solid var(--line);
}
.join-section-number {
  padding-top: 7px;
  color: var(--teal-700);
  font-size: 1.08rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.join-section-content { min-width: 0; }
.join-section-content > .eyebrow { margin: 0 0 7px; }
.join-section-content > h2 {
  margin: 0 0 18px;
  color: var(--teal-950);
  font-size: clamp(1.5rem, 2.7vw, 2.05rem);
  letter-spacing: -.03em;
  line-height: 1.22;
}
.join-section-content h3 {
  margin: 30px 0 12px;
  color: var(--teal-950);
  font-size: 1.18rem;
  line-height: 1.3;
}
.join-section-content p { margin: 0 0 13px; color: var(--muted); }
.join-setting-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  align-items: start;
  gap: 28px;
}
.join-resource-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 17px; }
.join-resource-links a { font-size: .92rem; font-weight: 750; text-decoration: none; }
.join-media-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.join-photo { min-width: 0; margin: 0; }
.join-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 12px;
  background: var(--sage-100);
}

.join-opportunity-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.join-opportunity {
  min-width: 0;
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.join-opportunity h4, .join-award h4 { margin: 0 0 8px; color: var(--teal-950); font-size: 1rem; line-height: 1.35; }
.join-opportunity p, .join-award p { margin: 0; font-size: .92rem; }
.join-award-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.join-award { min-width: 0; padding-top: 15px; border-top: 2px solid var(--line); }
.join-award h4 a { text-decoration: none; }
.join-award p + p { margin-top: 10px; }
.join-materials {
  margin-top: 28px;
  padding: 22px 24px;
  border-radius: 14px;
  background: var(--sage-100);
}
.join-materials h3 { margin-top: 0; }
.join-materials p { margin-bottom: 9px; }
.join-checklist { margin: 0; padding-left: 22px; }
.join-checklist li { margin: 5px 0; padding-left: 3px; color: var(--muted); }
.join-fellowship-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 26px; margin: 0; padding-left: 20px; }
.join-fellowship-list li { padding-left: 3px; color: var(--muted); }
.join-note { margin-top: 16px !important; font-size: .88rem; }
.join-contact {
  margin-top: 44px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--sage-100);
}
.join-contact .eyebrow { margin: 0 0 7px; }
.join-contact h2 { margin: 0 0 10px; color: var(--teal-950); font-size: clamp(1.5rem, 2.5vw, 2rem); letter-spacing: -.03em; line-height: 1.2; }
.join-contact p:not(.eyebrow) { max-width: 700px; margin: 0; color: var(--muted); }
.join-contact .button-link { margin-top: 18px; background: var(--teal-950); color: #fff; }
.join-contact .button-link:hover { background: var(--teal-700); }
@media (max-width: 900px) {
  .join-setting-layout { grid-template-columns: 1fr; }
  .join-media-grid { max-width: 680px; }
  .join-opportunity-grid, .join-award-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  body.join-page .page-shell { padding-top: 28px; }
  body.join-page .page-intro { margin-bottom: 30px; }
  .join-section { grid-template-columns: 30px minmax(0, 1fr); gap: 12px; padding: 26px 0 6px; }
  .join-section-number { padding-top: 5px; font-size: .98rem; }
  .join-setting-layout { gap: 20px; }
  .join-media-grid { gap: 10px; }
  .join-opportunity-grid, .join-award-list, .join-fellowship-list { grid-template-columns: 1fr; }
  .join-opportunity { padding: 16px; }
  .join-materials { padding: 18px; }
  .join-contact { margin-top: 32px; }
}