:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #111111;
  --text: #2f3437;
  --muted: #6f7579;
  --soft: #f6f7f7;
  --line: #e7e8e8;
  --accent: #225f55;
  --max: 1040px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 1.1rem;
}

.nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}

main,
.footer {
  margin: 0 auto;
  max-width: var(--max);
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

.hero {
  display: grid;
  gap: 4rem;
  grid-template-columns: minmax(0, 1fr) 260px;
  padding: 6rem 0 4.25rem;
}

.hero-copy,
.portrait-panel,
.section-title,
.section-heading,
.research-grid,
.publication,
.timeline,
.compact-grid {
  min-width: 0;
}

.eyebrow,
.kicker {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  color: var(--ink);
  font-size: 4.15rem;
  font-weight: 720;
  letter-spacing: 0;
  line-height: 0.98;
  margin-bottom: 1.35rem;
  max-width: 760px;
  overflow-wrap: break-word;
  text-wrap: balance;
}

h2 {
  color: var(--ink);
  font-size: 2.1rem;
  font-weight: 680;
  letter-spacing: 0;
  line-height: 1.12;
  margin-bottom: 1rem;
  text-wrap: balance;
}

h3 {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.4;
  margin-bottom: 0.32rem;
}

.lead {
  color: var(--text);
  font-size: 1.13rem;
  max-width: 720px;
  overflow-wrap: break-word;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.6rem;
}

.button {
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 600;
  min-height: 40px;
  padding: 0.5rem 0.82rem;
}

.button:hover {
  background: var(--soft);
  color: var(--ink);
}

.button.primary {
  background: var(--ink);
  border-color: var(--ink);
  color: white;
}

.portrait-panel img {
  aspect-ratio: 1 / 1.22;
  border-radius: 8px;
  display: block;
  object-fit: cover;
  width: 100%;
}

.metrics {
  display: grid;
  gap: 0.35rem;
  grid-template-columns: 1fr;
  margin: 1rem 0 0;
}

.metrics div {
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  padding: 0.48rem 0;
}

.metrics dt {
  color: var(--muted);
  font-size: 0.82rem;
}

.metrics dd {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 650;
  margin: 0;
}

.news-strip {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 1.25rem 0;
}

.news-strip article {
  min-width: 0;
}

.news-strip span,
.pub-meta {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.78rem;
  font-weight: 650;
  gap: 0.45rem;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}

.news-strip p {
  color: var(--text);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.section {
  border-top: 1px solid var(--line);
  padding: 4.2rem 0;
}

.two-column {
  display: grid;
  gap: 3rem;
  grid-template-columns: 300px minmax(0, 1fr);
}

.section-heading {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.4rem;
}

.text-link {
  color: var(--accent);
  font-size: 0.93rem;
  font-weight: 650;
}

.research-grid,
.compact-grid {
  display: grid;
  gap: 1.1rem 1.4rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.research-grid article,
.compact-grid article {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.research-grid p,
.compact-grid p,
.publication p,
.timeline p,
.note {
  color: var(--muted);
}

.publication-list {
  border-top: 1px solid var(--line);
}

.publication {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 210px minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
  padding: 1.2rem 0;
}

.publication.featured h3 {
  color: var(--accent);
}

.publication h3 a {
  border-bottom: 1px solid transparent;
}

.publication h3 a:hover {
  border-bottom-color: currentColor;
  color: var(--accent);
}

.paper-copy {
  min-width: 0;
}

.paper-preview {
  align-self: start;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 7px;
  cursor: zoom-in;
  margin: 0;
  overflow: hidden;
  transition: border-color 160ms ease, transform 160ms ease;
}

.paper-preview:hover,
.paper-preview:focus-visible {
  border-color: #b7cbc7;
  outline: none;
  transform: translateY(-1px);
}

.paper-preview img {
  display: block;
  height: auto;
  width: 100%;
}

.paper-preview.is-missing {
  align-items: center;
  color: var(--muted);
  cursor: default;
  display: flex;
  font-size: 0.85rem;
  justify-content: center;
  min-height: 180px;
  padding: 1rem;
  text-align: center;
}

.paper-preview.is-missing:hover,
.paper-preview.is-missing:focus-visible {
  border-color: var(--line);
  transform: none;
}

.publication p {
  font-size: 0.94rem;
  margin-bottom: 0;
}

.publication .authors {
  color: var(--text);
  margin-bottom: 0.25rem;
}

.publication .summary {
  color: var(--muted);
}

.note {
  font-size: 0.86rem;
  margin: 1rem 0 0;
}

.timeline {
  display: grid;
  gap: 1.25rem;
}

.timeline article {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.timeline time {
  color: var(--muted);
  display: block;
  font-size: 0.82rem;
  font-weight: 650;
  margin-bottom: 0.25rem;
}

.timeline p {
  margin-bottom: 0;
}

.footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  font-size: 0.9rem;
  justify-content: space-between;
  padding-bottom: 2rem;
  padding-top: 2rem;
}

.footer p {
  margin: 0;
}

.is-lightbox-open {
  overflow: hidden;
}

.lightbox {
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 3.5rem 1.5rem 1.5rem;
  position: fixed;
  z-index: 100;
}

.lightbox[hidden] {
  display: none;
}

.lightbox img {
  background: white;
  border: 1px solid var(--line);
  border-radius: 7px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.14);
  max-height: calc(100vh - 5.5rem);
  max-width: min(760px, 100%);
  object-fit: contain;
}

.lightbox-close {
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 7px;
  color: white;
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 650;
  min-height: 38px;
  padding: 0.45rem 0.75rem;
  position: fixed;
  right: 1.5rem;
  top: 1.2rem;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.55rem;
    padding-bottom: 0.75rem;
    padding-top: 0.75rem;
  }

  .nav {
    flex-wrap: wrap;
    gap: 0.8rem;
  }

  .hero,
  .two-column,
  .news-strip,
  .research-grid,
  .compact-grid,
  .publication {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 2rem;
    padding-top: 4rem;
  }

  .portrait-panel {
    max-width: 320px;
  }

  .paper-preview {
    max-width: 440px;
  }

  .section-heading,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  main,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-header {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 2rem;
    line-height: 1.08;
  }

  h2 {
    font-size: 1.65rem;
  }

  .lead {
    font-size: 1rem;
  }
}