:root {
  --bg: #ffffff;
  --text: #1f2933;
  --muted: #5f6b7a;
  --line: #e5e7eb;
  --primary: #1f4e79;
  --primary-dark: #153a5b;
  --light-bg: #f6f8fb;
  --card-bg: #ffffff;
  --shadow: rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR",
    "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.nav-container {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto minmax(120px, 1fr);
  gap: 20px;
  align-items: center;
  min-height: 68px;
}

.site-title {
  min-width: 0;
  justify-self: start;
}

.site-title-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text);
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.site-logo {
  display: block;
  width: auto !important;
  height: 38px !important;
  max-width: 84px !important;
  margin-right: -8px;
  object-fit: contain;
  flex: 0 0 auto;
}

.site-title-ko,
.site-title-en {
  white-space: nowrap;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--text);
  font-weight: 600;
}

.language-toggle {
  justify-self: end;
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  background: #ffffff;
}

.lang-btn {
  border: 0;
  background: transparent;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  color: var(--muted);
}

.lang-btn.active {
  background: var(--primary);
  color: #ffffff;
}

.lang-en {
  display: none;
}

.hero {
  padding: 76px 0 34px;
  background:
    radial-gradient(circle at top right, rgba(31, 78, 121, 0.10), transparent 32%),
    linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}

.eyebrow {
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin: 0 0 14px;
}

.hero-title-row {
  display: block;
  width: 100%;
  max-width: 1120px;
  margin: 0 0 24px;
}

.hero-title-row h1 {
  margin: 0;
  min-width: 0;
  white-space: nowrap;
}

.hero-keywords {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  margin: 0;
}

.hero-keywords span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 46px;
  padding: 10px 16px;
  border: 1px solid rgba(125, 190, 230, 0.36);
  border-radius: 16px;
  background:
    radial-gradient(circle at top left, rgba(173, 216, 230, 0.32), transparent 42%),
    linear-gradient(145deg, rgba(245, 251, 255, 0.96), rgba(255, 255, 255, 0.82));
  box-shadow:
    0 10px 24px rgba(31, 78, 121, 0.07),
    inset 0 1px 0 rgba(255, 255, 255, 0.88);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.96rem;
  letter-spacing: -0.01em;
  text-align: center;
}

.site-title-en {
  display: none;
}

.hero-text {
  max-width: 1120px;
  font-size: 1.05rem;
  margin: 0;
}

.section {
  padding: 72px 0;
  scroll-margin-top: 82px;
}

#about,
#about-en {
  padding-top: 40px;
}

.section.muted {
  background: var(--light-bg);
}

.section-heading {
  margin-bottom: 30px;
}

.section-label {
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin: 0 0 6px;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin: 0;
  letter-spacing: -0.04em;
}

h3 {
  margin-top: 0;
  font-size: 1.22rem;
  letter-spacing: -0.02em;
}

.two-column {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 44px;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.member-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.members-tabs {
  width: 100%;
  max-width: none;
}

.members-tab-list {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 10px 26px var(--shadow);
}

.members-tab {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.94rem;
  font-weight: 800;
  line-height: 1;
  padding: 11px 20px;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.members-tab.active,
.members-tab[aria-selected="true"] {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 10px 22px rgba(31, 78, 121, 0.16);
}

.members-tab:focus {
  outline: 3px solid rgba(125, 190, 230, 0.45);
  outline-offset: 3px;
}

.members-panel[hidden] {
  display: none;
}

.member-profile-card {
  position: relative;
  overflow: hidden;
  margin-bottom: 0;
  padding: 32px;
  border-color: rgba(125, 190, 230, 0.32);
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.08);
}

.member-profile-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), rgba(125, 190, 230, 0.72));
}

.professor-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 220px);
  gap: 30px;
  align-items: center;
  background:
    radial-gradient(circle at top right, rgba(173, 216, 230, 0.22), transparent 34%),
    #ffffff;
}

.member-profile-text {
  min-width: 0;
}

.member-photo-frame {
  width: 100%;
  max-width: 220px;
  justify-self: end;
}

.member-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid rgba(125, 190, 230, 0.38);
  border-radius: 22px;
  background: var(--light-bg);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.12);
}

.students-card {
  background:
    radial-gradient(circle at top left, rgba(173, 216, 230, 0.16), transparent 34%),
    #ffffff;
}

.member-profile-card .member-name {
  color: var(--text);
  font-size: 1.28rem;
}

.member-info-link {
  display: inline-flex;
  align-items: center;
  color: var(--primary);
  font-weight: 800;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 10px 28px var(--shadow);
  margin-bottom: 20px;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.publications-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  width: 100%;
  max-width: none;
}

.publication-card {
  position: relative;
  overflow: hidden;
  padding: 24px 26px;
  border: 1px solid rgba(125, 190, 230, 0.30);
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(173, 216, 230, 0.16), transparent 34%),
    #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.07);
}

.publication-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, rgba(31, 78, 121, 0.88), rgba(125, 190, 230, 0.58));
}

.publication-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.publication-year,
.publication-note {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1;
  white-space: normal;
}

.publication-year {
  padding: 7px 11px;
  background: var(--primary);
  color: #ffffff;
  letter-spacing: 0.03em;
}

.publication-note {
  padding: 7px 10px;
  border: 1px solid rgba(125, 190, 230, 0.36);
  background: rgba(246, 248, 251, 0.92);
  color: var(--primary);
}

.publication-title {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 1.12rem;
  line-height: 1.42;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.publication-authors,
.publication-venue {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.55;
}

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

.publication-venue {
  color: var(--text);
  font-style: italic;
}

.publication-authors + .publication-venue {
  margin-top: 4px;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  width: 100%;
  max-width: none;
}

.project-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid rgba(125, 190, 230, 0.34);
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(173, 216, 230, 0.18), transparent 34%),
    #ffffff;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, rgba(31, 78, 121, 0.88), rgba(125, 190, 230, 0.58));
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(75, 160, 220, 0.54);
  box-shadow: 0 20px 44px rgba(31, 78, 121, 0.13);
}

.project-card:focus {
  outline: 3px solid rgba(125, 190, 230, 0.45);
  outline-offset: 4px;
}

.project-card-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 440px);
  gap: 32px;
  align-items: center;
}

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

.project-visual {
  justify-self: end;
  width: 100%;
  max-width: 440px;
}

.project-illustration {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  border: 1px solid rgba(125, 190, 230, 0.34);
  border-radius: 18px;
  background: var(--light-bg);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
}

.project-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
}

.project-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1;
}

.project-status {
  border: 1px solid rgba(125, 190, 230, 0.36);
  background: rgba(246, 248, 251, 0.94);
  color: var(--primary);
}

.project-title {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 1.16rem;
  line-height: 1.42;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.project-program {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.project-summary {
  margin: 0 0 18px;
  color: var(--text);
  font-size: 0.98rem;
  line-height: 1.65;
}

.project-action {
  display: inline-flex;
  align-items: center;
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 900;
}

.project-detail-list {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
}

.project-detail-list div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.project-detail-list dt {
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 900;
}

.project-detail-list dd {
  margin: 0;
  color: var(--text);
}

.project-modal-heading {
  margin: 24px 0 10px;
  color: var(--primary);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.project-focus-list {
  margin: 0 0 20px;
  padding-left: 20px;
}

.project-focus-list li {
  margin-bottom: 8px;
}

.keyword-list {
  padding-left: 20px;
  margin: 10px 0 0;
}

.keyword-list li {
  margin-bottom: 8px;
}

.member-name {
  font-size: 1.12rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.note {
  color: var(--muted);
  font-size: 0.95rem;
}

.news-grid {
  column-count: 2;
  column-gap: 24px;
  width: 100%;
}

.news-card {
  position: relative;
  overflow: hidden;
  display: inline-block;
  width: 100%;
  margin: 0 0 24px;
  min-width: 0;
  break-inside: avoid;
  page-break-inside: avoid;
  border: 1px solid rgba(125, 190, 230, 0.30);
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(173, 216, 230, 0.15), transparent 34%),
    #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.07);
}

.news-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, rgba(31, 78, 121, 0.88), rgba(125, 190, 230, 0.58));
}

.news-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid rgba(125, 190, 230, 0.26);
  background: var(--light-bg);
}

.news-image-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
  border-bottom: 1px solid rgba(125, 190, 230, 0.26);
  background: rgba(246, 248, 251, 0.76);
}

.news-image-group .news-image {
  height: 180px;
  aspect-ratio: auto;
  object-fit: cover;
  border: 1px solid rgba(125, 190, 230, 0.26);
  border-radius: 14px;
}

.news-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px 24px 26px;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.news-date,
.news-category {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1;
}

.news-date {
  padding: 7px 11px;
  background: var(--primary);
  color: #ffffff;
  letter-spacing: 0.02em;
}

.news-category {
  padding: 7px 10px;
  border: 1px solid rgba(125, 190, 230, 0.36);
  background: rgba(246, 248, 251, 0.92);
  color: var(--primary);
}

.news-title {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 1.08rem;
  line-height: 1.42;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.news-description {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.62;
}

.news-link {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-top: 14px;
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 900;
}

.contact-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding: 30px;
  border: 1px solid rgba(125, 190, 230, 0.34);
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(173, 216, 230, 0.18), transparent 34%),
    #ffffff;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

.contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, rgba(31, 78, 121, 0.88), rgba(125, 190, 230, 0.58));
}

.contact-intro {
  width: 100%;
  max-width: none;
  margin: 0 0 24px;
  color: var(--text);
  font-size: 1.04rem;
  line-height: 1.7;
  overflow-wrap: normal;
  word-break: keep-all;
}

.contact-details {
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1fr);
  gap: 18px;
}

.contact-item {
  min-width: 0;
  padding: 20px;
  border: 1px solid rgba(125, 190, 230, 0.28);
  border-radius: 16px;
  background: rgba(246, 248, 251, 0.82);
}

.contact-label {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.contact-item a {
  font-weight: 900;
}

.contact-item p {
  margin: 0;
  color: var(--text);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
  font-size: 0.92rem;
  background: #ffffff;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-content p {
  margin: 0;
}

@media (max-width: 900px) {
  .nav-container {
    grid-template-columns: 1fr auto;
    padding: 16px 0;
    gap: 14px;
  }

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

  .nav {
    grid-column: 1 / -1;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .language-toggle {
    justify-self: end;
    width: fit-content;
  }

  .hero {
    padding: 60px 0 34px;
  }

  .hero-keywords {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .project-visual {
    justify-self: start;
    max-width: 420px;
  }

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

  .member-photo-frame {
    justify-self: start;
    width: min(220px, 100%);
  }

  .two-column,
  .grid-3,
  .member-grid {
    grid-template-columns: 1fr;
  }

  .news-grid {
    column-count: 1;
  }

  .contact-details {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
  }
}

/* ==============================
Research Pillar Cards
============================== */

.section-intro {
  max-width: 100%;
  color: var(--muted);
  font-size: 1.08rem;
  margin: 14px 0 0;
}

.research-pipeline {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 18px;
margin-top: 34px;
}

.pipeline-item {
min-height: 190px;
padding: 26px 22px;
border: 1px solid rgba(125, 190, 230, 0.38);
border-radius: 28px;
background:
radial-gradient(circle at top left, rgba(173, 216, 230, 0.36), transparent 42%),
linear-gradient(145deg, rgba(235, 248, 255, 0.88), rgba(255, 255, 255, 0.72));
box-shadow:
0 18px 40px rgba(31, 78, 121, 0.08),
inset 0 1px 0 rgba(255, 255, 255, 0.85);
backdrop-filter: blur(10px);
display: flex;
flex-direction: column;
justify-content: space-between;
}

.pipeline-top {
display: flex;
align-items: flex-start;
justify-content: space-between;
gap: 16px;
}

.pipeline-number {
width: 48px;
height: 48px;
border-radius: 999px;
display: flex;
align-items: center;
justify-content: center;
background: rgba(31, 78, 121, 0.92);
color: #ffffff;
font-size: 0.9rem;
font-weight: 900;
letter-spacing: -0.03em;
box-shadow: 0 12px 26px rgba(31, 78, 121, 0.20);
flex: 0 0 auto;
}

.pipeline-symbol {
width: 58px;
height: 58px;
border-radius: 20px;
display: flex;
align-items: center;
justify-content: center;
background:
radial-gradient(circle at top left, rgba(255, 255, 255, 0.84), transparent 42%),
linear-gradient(145deg, rgba(255, 255, 255, 0.72), rgba(236, 248, 255, 0.74));
border: 1px solid rgba(125, 190, 230, 0.32);
box-shadow:
0 14px 30px rgba(31, 78, 121, 0.09),
inset 0 1px 0 rgba(255, 255, 255, 0.90);
flex: 0 0 auto;
transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pipeline-symbol svg {
width: 30px;
height: 30px;
fill: none;
stroke: currentColor;
stroke-width: 1.9;
stroke-linecap: round;
stroke-linejoin: round;
}

.symbol-data {
color: #168aad;
background:
radial-gradient(circle at top left, rgba(209, 246, 255, 0.98), transparent 44%),
linear-gradient(145deg, rgba(232, 249, 255, 0.94), rgba(255, 255, 255, 0.82));
}

.symbol-factor {
color: #5b5bd6;
background:
radial-gradient(circle at top left, rgba(226, 226, 255, 0.98), transparent 44%),
linear-gradient(145deg, rgba(241, 240, 255, 0.94), rgba(255, 255, 255, 0.82));
}

.symbol-valuation {
color: #0f9f7a;
background:
radial-gradient(circle at top left, rgba(215, 255, 241, 0.98), transparent 44%),
linear-gradient(145deg, rgba(235, 255, 248, 0.94), rgba(255, 255, 255, 0.82));
}

.symbol-system {
color: #d97706;
background:
radial-gradient(circle at top left, rgba(255, 239, 205, 0.98), transparent 44%),
linear-gradient(145deg, rgba(255, 248, 232, 0.94), rgba(255, 255, 255, 0.82));
}

.pipeline-item h3 {
margin: 20px 0 8px;
font-size: 1.18rem;
line-height: 1.35;
letter-spacing: -0.03em;
}

.pipeline-subtitle {
margin: 0;
color: var(--primary);
font-weight: 800;
font-size: 0.82rem;
line-height: 1.35;
}

.pipeline-item p:not(.pipeline-subtitle) {
display: none;
}

.popup-trigger {
cursor: pointer;
transition:
transform 0.2s ease,
box-shadow 0.2s ease,
border-color 0.2s ease,
background 0.2s ease;
}

.popup-trigger:hover {
transform: translateY(-6px);
border-color: rgba(75, 160, 220, 0.58);
background:
radial-gradient(circle at top left, rgba(173, 216, 230, 0.52), transparent 44%),
linear-gradient(145deg, rgba(223, 244, 255, 0.96), rgba(255, 255, 255, 0.82));
box-shadow:
0 24px 54px rgba(31, 78, 121, 0.15),
inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.popup-trigger:hover .pipeline-symbol {
transform: translateY(-2px) scale(1.04);
box-shadow:
0 18px 38px rgba(31, 78, 121, 0.14),
inset 0 1px 0 rgba(255, 255, 255, 0.94);
}

.popup-trigger:focus {
outline: 3px solid rgba(125, 190, 230, 0.45);
outline-offset: 4px;
}

/* ==============================
Modal Popup
============================== */

.modal-overlay {
position: fixed;
inset: 0;
display: none;
align-items: center;
justify-content: center;
padding: 28px;
background: rgba(15, 23, 42, 0.58);
z-index: 1000;
}

.modal-overlay.active {
display: flex;
}

.modal-box {
position: relative;
width: min(820px, 100%);
max-height: min(760px, calc(100vh - 56px));
overflow-y: auto;
background: #ffffff;
border-radius: 22px;
padding: 36px;
box-shadow: 0 24px 80px rgba(15, 23, 42, 0.28);
}

.modal-close {
position: absolute;
top: 18px;
right: 20px;
width: 38px;
height: 38px;
border: 1px solid var(--line);
border-radius: 999px;
background: #ffffff;
color: var(--text);
cursor: pointer;
font-size: 1.7rem;
line-height: 1;
}

.modal-close:hover {
background: var(--light-bg);
}

.modal-content {
display: none;
}

.modal-content h2 {
margin-bottom: 18px;
}

.modal-content p {
font-size: 1.02rem;
}

.modal-label {
color: var(--primary);
font-weight: 900;
letter-spacing: 0.06em;
text-transform: uppercase;
font-size: 0.82rem;
margin: 0 0 8px;
}

body.modal-open {
overflow: hidden;
}

/* ==============================
Responsive
============================== */

@media (max-width: 1000px) {
.research-pipeline {
grid-template-columns: repeat(2, 1fr);
}
}

@media (max-width: 700px) {
.research-pipeline {
grid-template-columns: 1fr;
}

.pipeline-item {
min-height: 160px;
}

.modal-overlay {
padding: 16px;
}

.modal-box {
padding: 28px 22px;
border-radius: 18px;
}

.modal-close {
top: 12px;
right: 12px;
}

.news-image-group {
grid-template-columns: 1fr;
}
}

@media (max-width: 700px) {
  .site-logo {
    height: 34px !important;
    max-width: 76px !important;
    margin-right: -7px;
  }

  .site-title-link {
    font-size: 0.98rem;
  }
}

@media (max-width: 520px) {
  .nav-container {
    grid-template-columns: 1fr;
  }

  .site-title,
  .language-toggle {
    justify-self: center;
  }

  .nav {
    justify-content: center;
  }

  .hero {
    padding: 52px 0 30px;
  }

  .hero-title-row h1 {
    white-space: normal;
  }

  .hero-keywords {
    grid-template-columns: 1fr;
  }

  .members-tabs {
    max-width: none;
  }

  .members-tab-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .members-tab {
    padding: 11px 12px;
  }

  .member-profile-card {
    padding: 28px 22px;
  }

  .publication-card {
    padding: 22px 20px;
  }

  .contact-card {
    padding: 26px 20px;
  }

  .contact-item {
    padding: 18px;
  }

  .news-card-body {
    padding: 22px 20px 24px;
  }

  .news-title {
    font-size: 1.04rem;
  }

  .publication-title {
    font-size: 1.04rem;
  }

  .project-card {
    padding: 24px 20px;
  }

  .project-title {
    font-size: 1.06rem;
  }

  .project-detail-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

#about .section-heading,
#about-en .section-heading {
  width: 100%;
  max-width: none;
}

#about .section-intro,
#about-en .section-intro {
  width: 100%;
  max-width: 100%;
}