:root {
  --paper: #f6f3ed;
  --paper-deep: #eee9df;
  --surface: #fffdf9;
  --ink: #172431;
  --ink-soft: #43515d;
  --muted: #5f6b74;
  --navy: #17324d;
  --navy-deep: #10273a;
  --teal: #3e7477;
  --teal-pale: #dce9e7;
  --copper: #b46542;
  --line: rgba(23, 50, 77, 0.15);
  --line-light: rgba(255, 255, 255, 0.18);
  --shadow: 0 24px 70px rgba(26, 39, 50, 0.12);
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --type-xs: 0.75rem;
  --type-sm: 0.875rem;
  --type-base: 1rem;
  --type-md: 1.25rem;
  --type-lg: 1.75rem;
  --type-display: clamp(3.5rem, 7vw, 6.25rem);
  --content: 72rem;
  --header-height: 4.75rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--type-base);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.visually-hidden {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  margin: -1px;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

body,
button,
a {
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

a:focus-visible {
  border-radius: 0.2rem;
  outline: 0.2rem solid var(--copper);
  outline-offset: 0.25rem;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  border-radius: 0.25rem;
  background: var(--surface);
  color: var(--navy);
  font-size: var(--type-sm);
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid var(--line);
  background: rgba(246, 243, 237, 0.93);
  backdrop-filter: blur(1rem);
}

.site-header__inner,
.site-footer__inner,
.section-shell,
.hero__inner {
  width: min(calc(100% - 3rem), var(--content));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.75rem;
  text-decoration: none;
  white-space: nowrap;
}

.site-brand__name {
  color: var(--navy);
  font-size: var(--type-md);
  font-weight: 700;
}

.site-brand__field {
  color: var(--muted);
  font-size: var(--type-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav ul {
  display: flex;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
  list-style: none;
}

.site-nav a {
  position: relative;
  display: inline-block;
  padding: 1.65rem 0 1.5rem;
  color: var(--ink-soft);
  font-size: var(--type-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 1rem;
  left: 0;
  height: 0.12rem;
  background: var(--copper);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="location"] {
  color: var(--navy);
}

.site-nav a:hover::after,
.site-nav a[aria-current="location"]::after {
  transform: scaleX(1);
}

.nav-label--short {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  min-height: calc(100svh - var(--header-height));
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  position: absolute;
  top: -14rem;
  right: -10rem;
  width: 42rem;
  height: 42rem;
  border: 1px solid rgba(62, 116, 119, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(62, 116, 119, 0.035), 0 0 0 10rem rgba(62, 116, 119, 0.025);
  content: "";
}

.hero__inner {
  position: relative;
  display: grid;
  padding-block: clamp(4.5rem, 9vw, 8rem);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 1.25fr) minmax(17rem, 0.75fr);
}

.eyebrow,
.section-label,
.card-index {
  color: var(--teal);
  font-size: var(--type-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  margin: 0 0 1.7rem;
  align-items: center;
  gap: 0.8rem;
}

.eyebrow::before {
  width: 2.25rem;
  height: 1px;
  background: var(--copper);
  content: "";
}

.hero h1 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero h1 {
  max-width: 12ch;
  font-size: var(--type-display);
}

.hero__role {
  max-width: 39rem;
  margin: 1.4rem 0 0;
  color: var(--navy);
  font-size: var(--type-lg);
  font-weight: 600;
  line-height: 1.3;
}

.hero__summary {
  max-width: 40rem;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-size: var(--type-base);
}

.hero__actions,
.publication-callout__actions {
  display: flex;
  margin-top: 2rem;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0.2rem;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  font-size: var(--type-xs);
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button::after {
  content: "\2192";
  font-size: var(--type-base);
  transition: transform 180ms ease;
}

.button:hover {
  transform: translateY(-0.12rem);
}

.button:hover::after {
  transform: translateX(0.2rem);
}

.button--primary {
  background: var(--navy);
  color: #fff;
}

.button--primary:hover {
  background: var(--teal);
}

.button--secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.45);
  color: var(--navy);
}

.button--secondary:hover {
  border-color: var(--teal);
  background: var(--surface);
}

.button--light {
  border-color: var(--line-light);
  background: #fff;
  color: var(--navy-deep);
}

.hero__portrait {
  position: relative;
  width: 60%;
  margin: 0;
  justify-self: center;
}

.hero__portrait::before {
  position: absolute;
  right: -1.5rem;
  bottom: -1.5rem;
  width: 76%;
  height: 76%;
  border: 1px solid var(--teal);
  content: "";
}

.hero__portrait-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--navy);
  box-shadow: var(--shadow);
}

.hero__portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  filter: saturate(0.82) contrast(1.02);
}

.page-section {
  position: relative;
  padding-block: clamp(5rem, 9vw, 8rem);
}

.page-section--surface {
  background: var(--surface);
}

.section-intro {
  display: grid;
  margin-bottom: clamp(2.8rem, 5vw, 4.5rem);
  align-items: end;
  gap: 2rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(18rem, 0.7fr);
}

.section-label {
  display: block;
  margin-bottom: 1rem;
  font-size: var(--type-sm);
  letter-spacing: 0.08em;
}

.section-lead {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--type-base);
}

.research-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.research-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}

.research-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 8.2;
  background: var(--navy-deep);
}

.research-card__image::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 58%, rgba(12, 31, 46, 0.16));
  content: "";
  pointer-events: none;
}

.research-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms ease;
}

.research-card:hover .research-card__image img {
  transform: scale(1.025);
}

.research-card__body {
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
}

.card-index {
  color: var(--copper);
}

.research-card h3 {
  max-width: 21ch;
  margin: 0.65rem 0 0;
  color: var(--navy);
  font-size: var(--type-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.research-card p {
  margin: 1rem 0 0;
  color: var(--ink-soft);
}

.tag-list {
  display: flex;
  margin: 1.35rem 0 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
}

.tag-list li {
  padding: 0.32rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: var(--type-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.publication-callout {
  display: grid;
  margin-top: 1.25rem;
  padding: clamp(1.6rem, 4vw, 2.7rem);
  border: 1px solid var(--line);
  background: var(--teal-pale);
  align-items: center;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.publication-callout h3 {
  margin: 0;
  color: var(--navy);
  font-size: var(--type-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.publication-callout p {
  max-width: 48rem;
  margin: 0.45rem 0 0;
  color: var(--ink-soft);
}

.publication-callout__actions {
  margin: 0;
}

.projects-section {
  background: var(--navy-deep);
  color: #fff;
}

.projects-section .section-label {
  color: #9bc8c5;
}

.projects-section .section-lead {
  color: rgba(255, 255, 255, 0.68);
}

.funding-intro {
  margin-bottom: 0;
}

.funding-actions {
  margin-top: 2rem;
}

.collaboration-layout {
  display: grid;
  align-items: start;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(15rem, 0.45fr) minmax(0, 1fr);
}

.collaboration-copy p {
  color: var(--ink-soft);
}

.map-frame {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 16px 48px rgba(26, 39, 50, 0.08);
}

.map-frame iframe {
  display: block;
  width: 100%;
  height: 25rem;
  border: 0;
}

.map-frame figcaption {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--type-xs);
}

.teaching-layout {
  display: grid;
  align-items: start;
  gap: clamp(2.5rem, 6vw, 6rem);
  grid-template-columns: minmax(16rem, 0.65fr) minmax(0, 1fr);
}

.teaching-intro p {
  margin: 1.4rem 0 0;
  color: var(--ink-soft);
}

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

.teaching-item {
  display: grid;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--line);
  gap: 1.5rem;
  grid-template-columns: 2rem minmax(0, 1fr);
}

.teaching-item__number {
  color: var(--copper);
  font-size: var(--type-md);
  font-weight: 600;
}

.teaching-item h3 {
  margin: 0;
  color: var(--navy);
  font-size: var(--type-md);
  font-weight: 600;
}

.teaching-item p {
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
}

.course-actions {
  margin-top: 1rem;
}

.contact-section {
  background: #2f5f63;
  color: #fff;
}

.contact-layout {
  display: grid;
  align-items: start;
  gap: clamp(3rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 0.85fr) minmax(20rem, 0.65fr);
}

.contact-section .section-label {
  color: rgba(255, 255, 255, 0.76);
}

.contact-copy {
  max-width: 41rem;
  margin: 1.5rem 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: var(--type-base);
}

.profile-links {
  display: grid;
  border-top: 1px solid var(--line-light);
}

.profile-link {
  display: grid;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line-light);
  align-items: center;
  gap: 1rem;
  grid-template-columns: 2rem minmax(0, 1fr) auto;
  text-decoration: none;
}

.profile-link__mark {
  display: grid;
  width: 1.8rem;
  height: 1.8rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  place-items: center;
  color: #fff;
  font-size: var(--type-xs);
}

.profile-link__label {
  display: block;
  color: #fff;
  font-weight: 700;
}

.profile-link__detail {
  display: block;
  margin-top: 0.08rem;
  color: rgba(255, 255, 255, 0.76);
  font-size: var(--type-xs);
}

.profile-link__arrow {
  color: rgba(255, 255, 255, 0.66);
  font-size: var(--type-md);
  transition: transform 180ms ease;
}

.profile-link:hover .profile-link__arrow {
  transform: translateX(0.25rem);
}

.site-footer {
  padding-block: 1.4rem;
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.5);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1rem;
}

.site-footer p {
  margin: 0;
  font-size: var(--type-xs);
  letter-spacing: 0.03em;
}

.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 520ms ease, transform 520ms ease;
}

.has-js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 60rem) {
  .site-brand__field {
    display: none;
  }

  .hero__inner {
    gap: 3.5rem;
    grid-template-columns: minmax(0, 1.05fr) minmax(15rem, 0.7fr);
  }

  .section-intro,
  .collaboration-layout,
  .teaching-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .section-lead {
    max-width: 43rem;
  }

  .collaboration-copy,
  .teaching-intro {
    max-width: 42rem;
  }

  .profile-links {
    max-width: 42rem;
  }
}

@media (max-width: 46rem) {
  :root {
    --header-height: 6.8rem;
  }

  html {
    scroll-padding-top: calc(var(--header-height) + 0.75rem);
  }

  .site-header__inner,
  .site-footer__inner,
  .section-shell,
  .hero__inner {
    width: min(calc(100% - 2rem), var(--content));
  }

  .site-header__inner {
    display: grid;
    padding-block: 0.7rem 0;
    gap: 0.3rem;
    grid-template-columns: 1fr;
  }

  .site-brand {
    justify-self: start;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav ul {
    width: max-content;
    min-width: 100%;
    justify-content: space-between;
    gap: 0.2rem;
  }

  .site-nav a {
    padding: 0.75rem 0 1rem;
    letter-spacing: 0.02em;
  }

  .site-nav a::after {
    bottom: 0.55rem;
  }

  .nav-label--full {
    display: none;
  }

  .nav-label--short {
    display: inline;
  }

  .hero {
    min-height: 0;
  }

  .hero::before {
    top: auto;
    right: -14rem;
    bottom: -9rem;
    width: 30rem;
    height: 30rem;
  }

  .hero__inner {
    padding-block: 3.7rem 5rem;
    grid-template-columns: 1fr;
  }

  .hero__portrait {
    width: min(50%, 14rem);
    margin-inline: auto;
  }

  .hero__portrait::before {
    right: -0.9rem;
    bottom: -0.9rem;
  }

  .page-section {
    padding-block: 4.8rem;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .publication-callout {
    grid-template-columns: 1fr;
  }

  .publication-callout__actions {
    justify-self: start;
  }

  .map-frame iframe {
    height: 18.75rem;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  .has-js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}