:root {
  color-scheme: light;
  --accent: #2f5d50;
  --accent-contrast: #ffffff;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1f2421;
  --text-soft: #58625c;
  --text-faint: #7a847e;
  --border: #ddd8cf;
  --border-strong: #bbb3a6;
  --max-width: 760px;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: Newsreader, Georgia, "Times New Roman", serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --accent: #8fb8ac;
  --accent-contrast: #14201c;
  --bg: #171917;
  --surface: #20231f;
  --text: #f2efe8;
  --text-soft: #cbc5bb;
  --text-faint: #9f978c;
  --border: #343a34;
  --border-strong: #515a52;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --accent: #8fb8ac;
    --accent-contrast: #14201c;
    --bg: #171917;
    --surface: #20231f;
    --text: #f2efe8;
    --text-soft: #cbc5bb;
    --text-faint: #9f978c;
    --border: #343a34;
    --border-strong: #515a52;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.6rem 0.9rem;
  border-radius: 4px;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.header-inner,
main,
.site-footer {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.header-inner {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.nav a {
  text-decoration: none;
  color: var(--text-soft);
}

.nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 650;
}

.theme-toggle {
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: inline-grid;
  place-items: center;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

main {
  padding-block: 3.5rem 4rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--text-faint);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  font-weight: 500;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.4rem, 8vw, 4.2rem);
}

h2 {
  margin: 0 0 1.25rem;
  padding-bottom: 0.55rem;
  border-bottom: 2px solid var(--border-strong);
  font-size: 1.65rem;
}

h3 {
  margin: 0 0 0.4rem;
  font-size: 1.24rem;
}

h4 {
  margin: 1.15rem 0 0.45rem;
  font-size: 1.05rem;
}

p {
  margin: 0 0 1rem;
}

.intro {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

.portrait {
  width: clamp(220px, 34vw, 280px);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  flex: 0 0 auto;
  background: var(--border);
}

.role {
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.affiliation {
  margin-bottom: 0.1rem;
  color: var(--text-soft);
}

.lead {
  font-size: 1.08rem;
}

.page-head {
  margin-bottom: 2rem;
}

.actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.92rem;
}

.button:hover {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

.section {
  margin-bottom: 2.75rem;
}

.offdesk-main {
  width: min(100% - 2rem, 980px);
}

.offdesk-main .page-head {
  max-width: var(--max-width);
}

.research-main {
  width: min(100% - 2rem, 1080px);
}

.research-main .page-head {
  max-width: var(--max-width);
}

.research-main .section {
  margin-top: 2.25rem;
}

.timeline,
.paper-list,
.details {
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li,
.details div {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1rem;
  padding-block: 0.9rem;
}

.period,
.details dt,
.byline,
.venue {
  color: var(--text-faint);
  font-size: 0.92rem;
}

.headline {
  margin: 0;
}

.org {
  color: var(--text-soft);
}

.sep {
  color: var(--text-faint);
  margin-inline: 0.35ch;
}

.note {
  margin-top: 0.2rem;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.evaluation {
  margin: 0.25rem 0 0;
  color: var(--text-faint);
  font-size: 0.76rem;
  line-height: 1.35;
  font-style: italic;
}

.timeline .evaluation {
  font-size: 0.76rem;
}

.section-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.section-nav a {
  color: var(--text-soft);
}

.paper {
  margin-bottom: 1rem;
  padding: 1.45rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  background: color-mix(in srgb, var(--surface) 82%, var(--bg));
}

.paper-with-figures {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 25rem);
  gap: 1.5rem;
  align-items: start;
}

.paper h3 {
  max-width: 42rem;
  font-size: 1.3rem;
}

.paper-description {
  max-width: 41rem;
}

.paper-description h4 {
  margin: 1rem 0 0.35rem;
  font-family: var(--font-body);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.paper-description p {
  color: var(--text-soft);
  font-size: 0.84rem;
  line-height: 1.52;
}

.research-figures {
  display: grid;
  gap: 0.85rem;
  margin-top: 0.1rem;
}

.research-figures figure {
  margin: 0;
  padding: 0.55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.research-figures img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 13.5rem;
  object-fit: contain;
}

.research-figures figcaption {
  margin-top: 0.45rem;
  color: var(--text-soft);
  font-size: 0.76rem;
  line-height: 1.35;
  font-weight: 650;
}

.links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.links a,
summary {
  color: var(--text-soft);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

summary {
  cursor: pointer;
  width: fit-content;
}

details p {
  margin-top: 0.75rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.empty {
  color: var(--text-soft);
}

.office {
  white-space: pre-line;
  color: var(--text-soft);
}

.food-guide {
  display: grid;
  gap: 1.75rem;
}

.food-card {
  display: grid;
  grid-template-columns: minmax(19rem, 22rem) minmax(0, 32rem);
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.85rem;
  border-bottom: 1px solid var(--border);
}

.food-card.photo-heavy {
  grid-template-columns: minmax(19rem, 22rem) minmax(0, 32rem);
}

.food-card:last-child {
  border-bottom: 0;
}

.food-photo {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 6px;
  object-fit: cover;
  background: var(--surface);
}

.food-photo-grid {
  display: grid;
  gap: 0.65rem;
  align-self: start;
  align-content: start;
}

.food-photo-grid.mosaic {
  grid-template-columns: 1fr;
}

.food-photo-grid.mosaic .food-photo:first-child {
  grid-column: auto;
}

.food-photo-grid .food-photo {
  aspect-ratio: 4 / 3;
}

.food-photo.placeholder {
  border: 1px dashed var(--border-strong);
  background:
    linear-gradient(135deg, transparent 0 48%, var(--border) 49% 51%, transparent 52%),
    var(--surface);
}

.food-copy .eyebrow {
  margin-bottom: 0.35rem;
}

.food-copy {
  max-width: 32rem;
}

.food-copy p {
  color: var(--text-soft);
}

.food-copy p:last-child {
  margin-bottom: 0;
}

.food-copy .venue {
  margin-bottom: 0.85rem;
  color: var(--text-faint);
}

.food-copy .venue a {
  color: var(--text-soft);
  font-weight: 650;
  text-decoration-color: var(--border-strong);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
    gap: 0.8rem;
  }

  .intro {
    flex-direction: column;
  }

  .timeline li,
  .details div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .food-card {
    grid-template-columns: 1fr;
  }

  .food-card.photo-heavy {
    grid-template-columns: 1fr;
  }

  .paper {
    padding: 1rem;
  }

  .paper-with-figures {
    grid-template-columns: 1fr;
  }

  .research-figures {
    max-width: 100%;
  }

  .research-figures img {
    max-height: 18rem;
  }

  .actions,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}