:root {
  --font-sans: "Pretendard Variable", Pretendard, Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --paper: #f8f7f2;
  --paper-deep: #efeee7;
  --ink: #171a24;
  --muted: #606674;
  --blue: #293d9b;
  --blue-dark: #1f2f78;
  --blue-soft: #e3e7f5;
  --line: rgba(31, 45, 93, 0.16);
  --white: #fff;
  --container: 1180px;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

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

:focus-visible {
  outline: 3px solid rgba(41, 61, 155, 0.32);
  outline-offset: 4px;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.12;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.035em;
}

h3 {
  font-weight: 650;
  letter-spacing: -0.02em;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.narrow {
  max-width: 880px;
}

.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: 1000;
  top: 12px;
  left: 12px;
  padding: 9px 14px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

/* Header */
.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: rgba(248, 247, 242, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 160ms ease;
}

.site-header.scrolled {
  border-color: var(--line);
}

.nav {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 11px;
  flex: 0 0 auto;
  text-decoration: none;
}

.brand-word {
  color: var(--blue);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 650;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(15px, 1.7vw, 25px);
}

.nav-links a {
  position: relative;
  color: #3e4352;
  font-size: 0.79rem;
  font-weight: 600;
  text-decoration: none;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--blue);
  content: "";
  opacity: 0;
  transform: scaleX(0.6);
  transition: opacity 150ms ease, transform 150ms ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-line {
  display: block;
  width: 21px;
  height: 1.5px;
  margin: 6px auto;
  background: var(--ink);
}

/* Shared type and controls */
.kicker {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  line-height: 1.3;
  text-transform: uppercase;
}

.lede {
  max-width: none;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.5vw, 1.28rem);
  line-height: 1.65;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  background: transparent;
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

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

.button:hover {
  border-color: var(--blue);
}

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

.text-link {
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 700;
}

.section-link {
  flex: 0 0 auto;
  margin-top: 8px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 700;
}

/* Page framing */
.page-intro {
  padding-block: clamp(48px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-intro h1 {
  max-width: none;
  margin-bottom: 0;
  font-size: clamp(3rem, 4.5vw, 3.75rem);
}

.page-intro .lede {
  max-width: none;
}

.section {
  padding-block: clamp(78px, 9vw, 122px);
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-muted {
  background: var(--paper-deep);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(38px, 5vw, 62px);
}

.section-heading > div {
  min-width: 0;
  flex: 1 1 auto;
}

.section-heading h2 {
  max-width: none;
  margin: 0;
  font-size: clamp(1.95rem, 2.8vw, 2.4rem);
}

.section-heading p:not(.kicker) {
  max-width: none;
  margin: 12px 0 0;
  color: var(--muted);
}

/* Home */
.home-hero {
  padding-block: clamp(28px, 4vw, 56px) clamp(88px, 11vw, 160px);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f8f7f2 0%, #f3f2eb 100%);
}

.home-hero-artwork {
  margin: 0 0 clamp(64px, 8vw, 104px);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--blue-soft);
}

.home-hero-artwork img {
  width: 100%;
  height: auto;
}

.home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(270px, 0.65fr);
  gap: clamp(60px, 10vw, 140px);
  align-items: end;
}

.hero-focus-column {
  display: flex;
  align-self: stretch;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
}

.university-logo {
  width: 260px;
  height: auto;
  align-self: flex-end;
}

.home-hero h1 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  letter-spacing: -0.035em;
  white-space: normal;
}

.home-hero .lede {
  max-width: none;
}

.focus-index {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.focus-index div {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  padding-block: 17px;
  border-bottom: 1px solid var(--line);
}

.focus-index dt {
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 750;
}

.focus-index dd {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 650;
}

.project-preview-list,
.project-list {
  border-top: 1px solid var(--ink);
}

.project-preview,
.project-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 38px;
  gap: clamp(24px, 4vw, 54px);
  align-items: start;
  padding-block: 30px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.project-row {
  grid-template-columns: 150px minmax(0, 1fr);
}

.project-preview .project-label,
.project-row .project-label {
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-preview h3,
.project-row h2 {
  margin-bottom: 10px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.project-preview p,
.project-row p {
  max-width: none;
  margin: 0;
  color: var(--muted);
}

.project-row .project-actions-inline {
  margin-top: 13px;
}

.project-preview .arrow {
  color: var(--blue);
  font-size: 1.25rem;
  transition: transform 150ms ease;
}

.project-preview:hover .arrow {
  transform: translateX(4px);
}

.latest-news {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 1.1fr);
  gap: clamp(50px, 9vw, 120px);
  align-items: start;
}

.latest-news h2 {
  margin-bottom: 18px;
  font-size: clamp(1.95rem, 3vw, 2.6rem);
}

.news-brief {
  border-top: 1px solid var(--ink);
}

.news-brief article {
  padding-block: 20px;
  border-bottom: 1px solid var(--line);
}

.news-brief time {
  display: block;
  margin-bottom: 7px;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 750;
  text-transform: uppercase;
}

.news-brief h3 {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.45;
}

.news-brief p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.news-brief h3 a {
  text-decoration: none;
  transition: color 150ms ease;
}

.news-brief h3 a:hover {
  color: var(--blue);
}

/* News */
.news-list {
  border-top: 1px solid var(--ink);
}

.news-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: clamp(30px, 6vw, 90px);
  padding-block: 38px;
  border-bottom: 1px solid var(--line);
}

.news-item time {
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 750;
  text-transform: uppercase;
}

.news-item h2 {
  max-width: none;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 2.1vw, 1.7rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.news-item p {
  max-width: none;
  margin: 13px 0 0;
  color: var(--muted);
}

/* PI */
.pi-hero {
  padding-block: clamp(70px, 9vw, 120px);
  border-bottom: 1px solid var(--line);
}

.pi-hero-grid {
  display: grid;
  grid-template-columns: minmax(190px, 230px) minmax(0, 1fr);
  gap: clamp(50px, 9vw, 120px);
  align-items: center;
}

.pi-photo-frame {
  width: 100%;
  max-width: 230px;
  margin: 0;
  background: var(--paper-deep);
  border: 1px solid var(--line);
}

.pi-photo-frame img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.pi-copy h1 {
  margin-bottom: 18px;
  font-size: clamp(1.75rem, 2.6vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  white-space: normal;
}

.pi-title {
  margin: 0 0 26px;
  color: var(--blue);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
}

.pi-email {
  margin: -10px 0 24px;
  font-size: 0.94rem;
}

.pi-email a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.pi-bio {
  max-width: none;
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.cv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(50px, 8vw, 110px);
}

.cv-column h2 {
  margin-bottom: 30px;
  font-size: clamp(1.9rem, 3vw, 2.5rem);
}

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

.timeline li {
  display: grid;
  grid-template-columns: 135px minmax(0, 1fr);
  gap: 24px;
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
}

.timeline time {
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 750;
}

.timeline h3 {
  margin-bottom: 6px;
  font-size: 1rem;
  line-height: 1.4;
}

.timeline p {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.55;
}

.timeline .timeline-detail {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(31, 45, 93, 0.09);
  font-size: 0.8rem;
}

.plain-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  padding-block: 7px;
  border-bottom: 1px solid rgba(31, 45, 93, 0.09);
  color: var(--muted);
  font-size: 0.91rem;
}

.profile-record-section h2 {
  margin-bottom: 0;
  font-size: clamp(1.9rem, 3vw, 2.5rem);
}

.profile-record-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(50px, 8vw, 110px);
}

.profile-record-column > h3 {
  margin-bottom: 18px;
  font-size: 1.08rem;
}

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

.record-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 22px;
  padding-block: 18px;
  border-bottom: 1px solid var(--line);
}

.record-list li > span {
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 750;
}

.record-list strong {
  font-size: 0.91rem;
}

.record-list p,
.service-note p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.service-note {
  margin-top: 30px;
}

.service-note h4 {
  margin: 0 0 8px;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* People */
.pi-summary {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: clamp(28px, 5vw, 60px);
  align-items: center;
  padding-block: 28px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.pi-summary img {
  width: 150px;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: center 24%;
  filter: saturate(0.88);
}

.pi-summary h2 {
  margin-bottom: 7px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  font-weight: 500;
}

.pi-summary p {
  margin: 0;
  color: var(--muted);
}

.recruitment-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.65fr);
  gap: clamp(50px, 9vw, 120px);
  align-items: start;
}

.recruitment-note h2 {
  margin-bottom: 20px;
  font-size: clamp(1.95rem, 3vw, 2.5rem);
}

.recruitment-note p {
  max-width: none;
  color: var(--muted);
}

.recruitment-details {
  border-top: 1px solid var(--ink);
}

.recruitment-details div {
  padding-block: 18px;
  border-bottom: 1px solid var(--line);
}

.recruitment-details dt {
  margin-bottom: 5px;
  color: var(--blue);
  font-size: 0.71rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.recruitment-details dd {
  margin: 0;
  font-size: 0.9rem;
}

/* Research */
.research-area-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--ink);
}

.research-area {
  min-height: 220px;
  padding: 30px clamp(28px, 5vw, 60px) 32px 0;
  border-bottom: 1px solid var(--line);
}

.research-area:nth-child(even) {
  padding-right: 0;
  padding-left: clamp(28px, 5vw, 60px);
  border-left: 1px solid var(--line);
}

.research-area .area-number {
  display: block;
  margin-bottom: 42px;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 750;
}

.research-area h2 {
  margin-bottom: 12px;
  font-family: inherit;
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.research-area p {
  max-width: none;
  margin: 0;
  color: var(--muted);
}

/* Publications */
.publication-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 42px;
}

.publication-toolbar p {
  max-width: none;
  flex: 1 1 auto;
  margin: 0;
  color: var(--muted);
}

.publication-scholar-link {
  flex: 0 0 auto;
  white-space: nowrap;
}

.publication-year {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 40px;
  padding-block: 10px 44px;
}

.publication-year + .publication-year {
  padding-top: 40px;
  border-top: 1px solid var(--ink);
}

.publication-year > h2 {
  margin: 8px 0 0;
  color: var(--blue);
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.publication-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.publication {
  padding: 0 0 27px;
}

.publication + .publication {
  padding-top: 27px;
  border-top: 1px solid var(--line);
}

.publication h3 {
  max-width: none;
  margin-bottom: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.18rem, 1.7vw, 1.45rem);
  font-weight: 500;
  line-height: 1.35;
}

.publication h3 a {
  text-decoration: none;
}

.publication h3 a:hover {
  color: var(--blue);
}

.publication p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.publication-badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 7px;
  border: 1px solid rgba(41, 61, 155, 0.34);
  color: var(--blue);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: clamp(60px, 10vw, 140px);
  align-items: start;
}

.contact-grid h1 {
  margin-bottom: 25px;
  font-size: clamp(3rem, 4.8vw, 4rem);
}

.contact-card {
  border-top: 1px solid var(--ink);
}

.contact-row {
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
}

.contact-row h2 {
  margin-bottom: 8px;
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.contact-row p,
.contact-row address {
  margin: 0;
  color: var(--muted);
  font-style: normal;
}

.contact-row a {
  color: var(--blue);
  font-weight: 700;
}

.location-note {
  margin-top: 10px !important;
  font-size: 0.81rem;
}

.profile-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.profile-link-list a {
  font-size: 0.88rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
  min-height: 150px;
  padding-block: 38px;
}

.footer-lab {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.footer-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  text-align: right;
}

/* Motion */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .brand-sub {
    display: none;
  }

  .menu-toggle {
    display: block;
    flex: 0 0 auto;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    max-height: 0;
    padding-inline: 24px;
    overflow: hidden;
    border-bottom: 0 solid var(--line);
    background: var(--paper);
    opacity: 0;
    pointer-events: none;
    transition: max-height 220ms ease, opacity 160ms ease, padding 220ms ease, border-width 220ms ease;
  }

  .nav-links.open {
    max-height: calc(100svh - var(--header-height));
    overflow-y: auto;
    padding-block: 18px 28px;
    border-bottom-width: 1px;
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 10px 0;
    font-size: 1rem;
  }

  .nav-links a::after {
    display: none;
  }

  .home-hero-grid,
  .pi-hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .home-hero-grid {
    align-items: start;
  }

  .focus-index {
    max-width: 520px;
  }

  .hero-focus-column {
    width: 100%;
    max-width: 520px;
  }

  .pi-photo-frame {
    max-width: 220px;
  }

  .pi-hero-grid {
    align-items: start;
  }

  .latest-news,
  .recruitment-note {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .page-intro {
    padding-block: 44px;
  }

  .pi-hero {
    padding-block: 66px 72px;
  }

  .home-hero {
    padding-block: 24px 72px;
  }

  .home-hero-artwork {
    margin-bottom: 52px;
  }

  .page-intro h1,
  .contact-grid h1 {
    font-size: clamp(2.25rem, 10vw, 3.1rem);
  }

  .home-hero h1 {
    font-size: clamp(1.65rem, 8vw, 2.35rem);
  }

  .university-logo {
    width: 180px;
  }

  .pi-copy h1 {
    font-size: clamp(1.75rem, 5vw, 2rem);
  }

  .section-heading h2 {
    font-size: clamp(1.75rem, 7vw, 2.15rem);
  }

  .news-item h2 {
    font-size: clamp(1.35rem, 6vw, 1.65rem);
  }

  .publication h3 {
    font-size: clamp(1.1rem, 4.8vw, 1.3rem);
  }

  .section {
    padding-block: 66px;
  }

  .section-heading {
    display: block;
  }

  .section-link {
    display: inline-block;
    margin-top: 20px;
  }

  .research-area-grid,
  .cv-grid,
  .profile-record-grid {
    grid-template-columns: 1fr;
  }

  .research-area,
  .research-area:nth-child(even) {
    padding: 25px 0 28px;
    border-right: 0;
    border-left: 0;
  }

  .research-area .area-number {
    margin-bottom: 28px;
  }

  .project-preview,
  .project-row {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .project-preview .arrow {
    display: none;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding-block: 28px;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .pi-summary {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 20px;
  }

  .pi-summary img {
    width: 92px;
  }

  .pi-summary .button {
    grid-column: 1 / -1;
  }

  .publication-toolbar {
    display: block;
  }

  .publication-toolbar .button {
    margin-top: 22px;
  }

  .publication-year {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .publication-year > h2 {
    margin-top: 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .footer-meta {
    text-align: left;
  }
}

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

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}


/* Bilingual home introduction and PI identity. */
:lang(ko) {
  word-break: keep-all;
  overflow-wrap: anywhere;
}

:lang(en) { word-break: normal; }

h1:lang(ko), h2:lang(ko), h3:lang(ko) {
  font-family: var(--font-sans);
  line-height: 1.35;
  white-space: normal;
}

.hero-subtitle {
  margin: 0 0 28px;
  color: var(--blue);
  font-size: clamp(0.95rem, 1.6vw, 1.22rem);
  line-height: 1.5;
}

.english-label {
  display: block;
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.5;
}

.name-english {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0;
}

.affiliation-english {
  display: inline-block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 400;
}

.kicker:lang(ko) { letter-spacing: 0.02em; }

.brand {
  flex: 0 1 auto;
  min-width: 0;
}

.brand-sub:lang(en) {
  display: inline;
  letter-spacing: 0;
  line-height: 1.35;
  text-transform: none;
}

.publication-toolbar { justify-content: flex-end; }

@media (max-width: 720px) {
  .publication-toolbar .button { margin-top: 0; }
}