:root {
  --navy-950: #06133b;
  --navy-800: #102966;
  --blue-500: #2a70de;
  --yellow-500: #f7b317;
  --red-500: #e4212d;
  --ink: #101933;
  --muted: #66708a;
  --paper: #f7f8fb;
  --white: #ffffff;
  --line: #dce1ea;
  --font-site: "Gothic A1", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --shell: min(1180px, calc(100% - 48px));
  --section-space: clamp(76px, 10vw, 136px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

html.language-swapping {
  scroll-behavior: auto;
}

html[lang=ko] {
  word-break: keep-all;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-site);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

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

h1,
h2,
h3 {
  font-family: var(--font-site);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  transform: translateY(-150%);
  padding: 10px 16px;
  color: var(--white);
  background: var(--navy-950);
  border-radius: 4px;
}

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

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  color: var(--navy-950);
  background: rgba(247, 248, 251, 0.92);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(6, 19, 59, 0.08);
  box-shadow: 0 8px 30px rgba(6, 19, 59, 0.05);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 136px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(21px, 3vw, 42px);
  margin-left: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: clamp(21px, 3vw, 42px);
}

.site-nav a {
  position: relative;
  padding: 28px 0 25px;
  color: #35405d;
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 2px;
  background: var(--blue-500);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  color: var(--navy-950);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 7px 2px;
  color: #35405d;
  border: 0;
  background: transparent;
  white-space: nowrap;
  font-size: 0.8rem;
  font-family: inherit;
  line-height: inherit;
  letter-spacing: 0.06em;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
}

.language-switch .is-current {
  color: var(--blue-500);
  font-weight: 700;
}

.language-divider {
  color: var(--muted);
  font-weight: 400;
}

.language-switch:focus-visible {
  outline: 2px solid rgba(6, 19, 59, 0.55);
  outline-offset: 2px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle > span:not(.sr-only) {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy-950);
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(70px, 9vw, 126px) 0 clamp(48px, 6vw, 76px);
  color: var(--navy-950);
  background: var(--white);
}

.hero::before {
  position: absolute;
  inset: 0;
  background: url("../images/home-background.png") center/cover no-repeat;
  opacity: 0.35;
  pointer-events: none;
  content: "";
}

.hero-grid {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-copy {
  max-width: 980px;
  margin-inline: auto;
}

.eyebrow {
  margin-bottom: 22px;
  color: var(--blue-500);
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero h1 {
  margin-bottom: 12px;
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  word-break: normal;
}

.hero-subtitle {
  max-width: 920px;
  margin: 0 auto 32px;
  font-size: clamp(1.25rem, 2.3vw, 2rem);
  font-weight: 600;
  line-height: 1.4;
}

.hero-subtitle-word {
  white-space: nowrap;
}

.hero-subtitle-initial {
  color: var(--blue-500);
  font-weight: 700;
}

.hero-affiliations {
  display: inline-block;
  max-width: 100%;
  padding: 6px 14px;
  color: var(--navy-950);
  background: rgba(255, 255, 255, 0.76);
  border-radius: 8px;
  box-shadow: 0 0 24px 12px rgba(255, 255, 255, 0.48);
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  font-weight: 500;
  line-height: 1.7;
}

.hero-affiliations p {
  margin: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 52px;
  padding: 0 22px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.section {
  padding: var(--section-space) 0;
}

.welcome-section,
.openings-section,
.research-areas-section,
.news-section {
  padding-block: clamp(44px, 5vw, 68px);
}

.welcome-content .section-label,
.openings-content .section-label,
.research-areas-section .section-label,
.news-section .section-label {
  color: var(--blue-500);
  font-family: var(--font-site);
  font-size: 0.73rem;
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.welcome-body,
.openings-body {
  width: 100%;
}

.welcome-body p,
.openings-body p {
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(1.05rem, 1.35vw, 1.2rem);
  line-height: 1.9;
}

.welcome-section,
.openings-section,
.research-areas-section {
  background: var(--white);
}

.welcome-section {
  padding-bottom: clamp(24px, 3vw, 38px);
}

.openings-section {
  padding-top: 0;
  padding-bottom: clamp(20px, 3vw, 36px);
}

.openings-content {
  padding-top: clamp(30px, 4vw, 46px);
  border-top: 1px solid var(--line);
}

.openings-body strong {
  color: var(--navy-950);
  font-weight: 700;
}

.research-areas-section {
  padding-top: clamp(24px, 3vw, 40px);
}

.research-areas-section .section-label {
  margin-bottom: clamp(30px, 4vw, 46px);
}

.news-section .section-label {
  margin-bottom: 16px;
}

.research-areas-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 42px);
}

.research-area {
  padding-top: 22px;
  border-top: 2px solid var(--blue-500);
}

.research-area-number {
  display: block;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
}

.research-area h3 {
  margin-bottom: 15px;
  color: var(--navy-950);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}

.research-area ul {
  margin: 0;
  padding-left: 1.25em;
  color: var(--muted);
}

.research-area li {
  padding-left: 0.15em;
}

.research-area li + li {
  margin-top: 0.45em;
}

.research-area li::marker {
  color: var(--blue-500);
}

.news-section {
  background: var(--white);
}

.news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.news-filter--conference {
  --news-filter-color: var(--blue-500);
  --news-filter-text: var(--white);
}

.news-filter--members {
  --news-filter-color: var(--yellow-500);
  --news-filter-text: var(--navy-950);
}

.news-filter--lab {
  --news-filter-color: var(--red-500);
  --news-filter-text: var(--white);
}

.news-filter-button,
.news-tag {
  border: 1px solid var(--news-filter-color);
  background: var(--news-filter-color);
  color: var(--news-filter-text);
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-site);
  font-size: 0.76rem;
  font-weight: 600;
  line-height: 1.25;
}

.news-filter-button {
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, opacity 160ms ease;
}

.news-filter-button[aria-pressed=false] {
  border-color: var(--line);
  background: var(--paper);
  color: var(--muted);
  opacity: 0.68;
}

.news-filter-button:hover {
  opacity: 0.85;
}

.news-filter-button:focus-visible {
  outline: 2px solid var(--navy-950);
  outline-offset: 3px;
}

.news-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--navy-950);
  border-bottom: 1px solid var(--line);
}

.news-table th,
.news-table td {
  text-align: left;
  vertical-align: top;
}

.news-table th:first-child {
  width: 170px;
  padding-right: 24px;
}

.news-table tbody th,
.news-table tbody td {
  padding-block: 22px;
  border-top: 1px solid var(--line);
}

.news-table tbody tr[hidden] {
  display: none;
}

.news-table tbody tr:first-child > *,
.news-table tbody tr.is-first-visible > * {
  border-top: 0;
}

.news-date {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.news-date time,
.researcher-role time {
  font-family: var(--font-site);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.news-tag {
  display: inline-block;
  margin-left: 8px;
  vertical-align: middle;
}

.news-content {
  color: var(--navy-950);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.55;
}

.news-event-heading {
  margin: 0;
}

.news-event-heading a {
  color: inherit;
  text-decoration: none;
}

.news-event-heading a:hover,
.news-event-heading a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.news-event-meta {
  font-weight: 400;
  white-space: nowrap;
}

.news-event-summary {
  margin: 5px 0 0;
  color: var(--ink);
  font-size: 0.9em;
  font-weight: 400;
  line-height: 1.6;
}

.site-footer {
  padding: 58px 0;
  color: #c7d1e8;
  background: var(--navy-950);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 48px;
}

.site-footer p {
  margin-bottom: 5px;
  font-size: 0.86rem;
}

.site-footer .footer-brand {
  color: var(--white);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.footer-address {
  max-width: 700px;
  margin-top: 12px;
  font-size: 0.86rem;
  font-style: normal;
  line-height: 1.7;
}

.footer-copyright {
  margin-top: 28px;
}

.footer-university {
  text-align: right;
}

.footer-university-mark {
  width: min(100%, 340px);
  height: auto;
  margin-left: auto;
}

.page-hero {
  padding: clamp(78px, 10vw, 144px) 0 clamp(70px, 9vw, 126px);
  color: var(--white);
  background: var(--navy-950);
}

.page-hero h1 {
  max-width: 990px;
  margin-bottom: 30px;
  font-size: clamp(3rem, 6.4vw, 6.1rem);
  font-weight: 600;
}

.compact-page-hero {
  padding-block: clamp(62px, 8vw, 108px);
}

.compact-page-hero h1 {
  margin-bottom: 0;
}

.publication-section,
.people-section,
.resources-section {
  padding-block: clamp(58px, 7vw, 88px);
  background: var(--white);
}

.publication-section + .publication-section {
  padding-top: 0;
}

.publication-note,
.people-email-note {
  margin-bottom: clamp(36px, 4vw, 52px);
  padding-left: 16px;
  color: var(--muted);
  border-left: 2px solid var(--blue-500);
  font-size: 0.86rem;
  line-height: 1.7;
}

.publication-note p,
.people-email-note p {
  margin: 0;
}

.publication-note p:first-child,
.people-email-note p:first-child {
  margin-bottom: 8px;
}

.publication-note strong {
  color: var(--ink);
  font-weight: 700;
}

.publication-section .group-heading {
  margin-bottom: 30px;
  padding-bottom: 0;
  border-bottom: 0;
}

.publication-section .group-heading h2 {
  margin-bottom: 0;
  color: var(--navy-950);
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  font-weight: 600;
}

.publication-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--navy-950);
}

.publication-entry {
  --publication-title-size: clamp(1.08rem, 1.45vw, 1.3rem);
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 8px;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
}

.publication-number {
  display: flex;
  align-items: center;
  height: calc(var(--publication-title-size) * 1.5);
  color: var(--blue-500);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}

.publication-details {
  min-width: 0;
  overflow-wrap: anywhere;
}

.publication-title {
  margin: 0 0 8px;
  color: var(--navy-950);
  font-size: var(--publication-title-size);
  font-weight: 600;
  line-height: 1.5;
}

.publication-title a,
.publication-meta a {
  color: inherit;
  text-decoration: none;
}

.publication-title a:hover,
.publication-title a:focus-visible,
.publication-meta a:hover,
.publication-meta a:focus-visible {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.publication-authors,
.publication-meta {
  margin: 0;
  font-size: clamp(0.96rem, 1.15vw, 1.05rem);
  line-height: 1.7;
}

.publication-authors {
  display: flex;
  flex-wrap: wrap;
  column-gap: 0.35em;
}

.publication-author {
  white-space: nowrap;
}

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

.publication-pi {
  font-weight: 700;
}

.publication-lab-member {
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

.corresponding-mark {
  margin-left: 1px;
  font-size: 0.78em;
  line-height: 0;
}

.resources-section + .resources-section {
  padding-top: 0;
}

.resources-section h2 {
  margin-bottom: 30px;
  padding-bottom: 18px;
  color: var(--navy-950);
  border-bottom: 1px solid var(--navy-950);
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  font-weight: 600;
}

.video-grid,
.logo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 42px);
}

.video-card {
  min-width: 0;
}

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--navy-950);
}

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

.video-external {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  color: var(--white);
}

.video-external img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-external::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.65));
}

.video-play-icon {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 68px;
  height: 48px;
  padding-left: 3px;
  border-radius: 12px;
  background: #e62117;
  font-size: 22px;
  line-height: 1;
  transform: translate(-50%, -50%);
}

.video-external:hover .video-play-icon,
.video-external:focus-visible .video-play-icon {
  background: #c91b12;
}

.video-external-label {
  position: absolute;
  z-index: 1;
  right: 16px;
  bottom: 14px;
  font-size: 0.82rem;
  font-weight: 600;
}

.video-card h3 {
  margin: 15px 0 0;
  color: var(--navy-950);
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.015em;
}

.logo-card {
  min-width: 0;
  margin: 0;
}

.logo-artwork {
  display: grid;
  place-items: center;
  min-height: 300px;
  padding: clamp(18px, 3vw, 36px);
  background: var(--paper);
  border: 1px solid var(--line);
}

.logo-artwork img {
  display: block;
  width: min(100%, 420px);
  height: auto;
  aspect-ratio: 1402/1122;
  object-fit: contain;
}

.email-notation,
.person-email {
  display: inline-flex;
  align-items: center;
  vertical-align: middle;
  gap: 8px;
  max-width: 100%;
  line-height: 1;
}

.university-email-icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.person-email-id {
  min-width: 0;
  overflow-wrap: anywhere;
}

.people-group + .people-group {
  margin-top: clamp(78px, 10vw, 128px);
}

.group-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 34px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--navy-950);
}

.group-heading h2 {
  margin-bottom: 0;
  color: var(--navy-950);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.group-heading p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 46px);
}

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

.person-card {
  min-width: 0;
}

.pi-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.pi-card--without-photo {
  grid-template-columns: 1fr;
}

.person-photo {
  aspect-ratio: 4/5;
  display: grid;
  place-items: center;
  color: #91ace2;
  background: linear-gradient(145deg, var(--navy-950), var(--navy-800));
  overflow: hidden;
}

.pi-card .person-photo {
  width: 100%;
  max-width: 360px;
}

.person-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pi-info {
  min-width: 0;
}

.pi-identity {
  margin-bottom: clamp(30px, 4vw, 46px);
}

.pi-name-row {
  --member-name-size: clamp(2rem, 3.2vw, 2.8rem);
  --member-icon-size: 20px;
  --member-link-size: 32px;
  display: flex;
  align-items: center;
  gap: 8px 12px;
}

.pi-info h3 {
  margin-bottom: 0;
  color: var(--navy-950);
  font-size: var(--member-name-size);
}

.pi-email {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.pi-history + .pi-history {
  margin-top: 36px;
}

.pi-history h4 {
  margin: 0 0 14px;
  color: var(--blue-500);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pi-history-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.pi-history-list li {
  display: grid;
  grid-template-columns: 145px minmax(0, 1fr);
  gap: 18px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.pi-history-period {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-site);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.pi-history-position {
  margin: 0 0 3px;
  color: var(--navy-950);
  font-weight: 600;
}

.pi-history-institution {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.person-role {
  margin-bottom: 10px;
  color: var(--blue-500);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.researcher-card {
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.researcher-role {
  text-transform: none;
  letter-spacing: 0.02em;
}

.researcher-name-row {
  --member-name-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 8px;
}

.pi-name-row h3,
.researcher-name-row h3 {
  min-width: 0;
}

.researcher-card h3 {
  margin-bottom: 0;
  color: var(--navy-950);
  font-size: var(--member-name-size);
}

.researcher-email {
  color: var(--muted);
  font-size: 0.86rem;
}

.researcher-links {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 8px;
  transform: translateY(calc(var(--member-name-size) * -0.1));
}

.researcher-links a {
  display: grid;
  place-items: center;
  width: var(--member-link-size, 28px);
  height: var(--member-link-size, 28px);
  color: var(--navy-950);
  border: 1px solid var(--line);
  border-radius: 50%;
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease;
}

.researcher-links a:hover,
.researcher-links a:focus-visible {
  color: var(--blue-500);
  border-color: var(--blue-500);
}

.researcher-links svg {
  width: 16px;
  height: 16px;
}

.researcher-links .ai {
  display: block;
  font-size: var(--member-icon-size, 16px);
  line-height: 1;
}

.not-found {
  min-height: calc(100vh - 82px);
  display: grid;
  align-items: center;
  padding: 90px 0;
}

.not-found h1 {
  margin-bottom: 24px;
  color: var(--navy-950);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 600;
}

.not-found > .shell > p:not(.eyebrow) {
  margin-bottom: 32px;
  color: var(--muted);
}

.button-dark {
  color: var(--white);
  background: var(--navy-950);
}

.reveal {
  animation: reveal 620ms ease both;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 900px) {
  :root {
    --shell: min(100% - 36px, 720px);
  }
  .site-header {
    backdrop-filter: none;
  }
  .header-actions {
    position: relative;
    z-index: 102;
    gap: 6px;
    margin-left: auto;
  }
  .menu-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
  }
  .menu-toggle[aria-expanded=true] > span:nth-child(2) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-toggle[aria-expanded=true] > span:nth-child(3) {
    opacity: 0;
  }
  .menu-toggle[aria-expanded=true] > span:nth-child(4) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: max(18px, (100vw - 720px) / 2);
    z-index: 101;
    width: min(280px, 100vw - 36px);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(6, 19, 59, 0.14);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 180ms ease, visibility 180ms, transform 180ms ease;
  }
  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }
  .site-nav a {
    width: 100%;
    padding: 11px 12px;
    color: #35405d;
    border-radius: 7px;
    font-family: var(--font-site);
    font-size: 1rem;
    line-height: 1.45;
  }
  .site-nav a::after {
    display: none;
  }
  .site-nav a:hover,
  .site-nav a:focus-visible,
  .site-nav a.is-active {
    color: var(--navy-950);
    background: rgba(42, 112, 222, 0.08);
  }
  .research-areas-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .research-area-number {
    margin-bottom: 16px;
  }
  .people-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pi-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 600px) {
  :root {
    --shell: calc(100% - 28px);
  }
  body {
    font-size: 16px;
  }
  .header-inner {
    min-height: 70px;
  }
  .hero {
    padding-top: 62px;
  }
  .hero h1 {
    font-size: clamp(3.4rem, 15vw, 4.8rem);
  }
  .button {
    width: 100%;
  }
  .news-table th:first-child {
    width: 142px;
    padding-right: 12px;
  }
  .news-table tbody th,
  .news-table tbody td {
    padding-block: 18px;
  }
  .news-event-meta {
    white-space: normal;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .publication-entry {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 6px;
    padding-block: 21px;
  }
  .video-grid,
  .logo-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .logo-artwork {
    min-height: 240px;
  }
  .people-grid {
    grid-template-columns: 1fr;
  }
  .pi-card {
    grid-template-columns: 1fr;
  }
  .pi-history-list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .not-found {
    min-height: calc(100vh - 70px);
    padding-block: 64px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}