:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --line: #e7eaf0;
  --text: #15171a;
  --muted: #667085;
  --muted-light: #8e98aa;
  --accent: #214f8f;
  --accent-soft: #eaf2ff;
  --shadow: 0 18px 44px rgba(15, 23, 42, 0.07);
  --radius-lg: 28px;
  --radius-md: 18px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(var(--max), calc(100% - 40px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  line-height: 1;
}

.logo-mark {
  width: 42px;
  height: 42px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo-copy {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  top: -1px;
}

.logo-copy strong {
  display: block;
  font-size: 22px;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.logo-copy span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.desktop-nav {
  display: flex;
  gap: 24px;
  color: #30343b;
  font-size: 15px;
}

.desktop-nav a {
  text-decoration: none;
  transition: color 160ms ease;
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: var(--accent);
}

.lang-switch {
  display: flex;
  gap: 5px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  background: #fff;
}

.lang-switch a {
  text-decoration: none;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--muted);
}

.lang-switch a.active {
  background: var(--text);
  color: #fff;
}

.mobile-menu-button {
  display: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 9px 14px;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.mobile-nav {
  display: none;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.mobile-nav a {
  display: block;
  padding: 15px 18px;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.mobile-nav a:last-child {
  border-bottom: 0;
}

.mobile-nav.is-open {
  display: block;
}

.hero,
.page-hero,
.section,
.footer-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  padding: 92px 0 62px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.65fr);
  gap: 46px;
  align-items: start;
}

.eyebrow,
.kicker {
  display: inline-flex;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 8px 12px;
  margin-bottom: 24px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kicker {
  background: transparent;
  padding: 0;
  font-weight: 700;
}

.hero h1,
.page-hero h1 {
  margin: 0 0 26px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.hero p,
.page-hero p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

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

.admission-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  box-shadow: var(--shadow);
  padding: 26px;
}

.admission-card h2 {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.admission-card .intro {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 15px;
}

.notice-feed {
  max-height: 310px;
  overflow-y: auto;
  padding-right: 8px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.notice-feed::-webkit-scrollbar {
  width: 8px;
}

.notice-feed::-webkit-scrollbar-thumb {
  background: #d7dde7;
  border-radius: 999px;
}

.notice-row {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.notice-row:last-child {
  border-bottom: 0;
}

.notice-date {
  color: var(--muted-light);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 3px;
}

.notice-title {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.notice-text {
  color: var(--muted);
  margin-top: 2px;
  font-size: 14px;
}

.section {
  padding: 58px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.section-heading p {
  max-width: 540px;
  margin: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 18px;
}

.cards-4 {
  grid-template-columns: repeat(4, 1fr);
}

.cards-3 {
  grid-template-columns: repeat(3, 1fr);
}

.cards-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

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

.link-card {
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.link-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.notice {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px;
  background: var(--bg-soft);
}

.notice h2 {
  margin: 0 0 12px;
  font-size: 32px;
  letter-spacing: -0.04em;
}

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

.page-hero {
  padding: 72px 0 34px;
}

.profile-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 34px;
  align-items: start;
}

.profile-photo-small {
  width: 220px;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--bg-soft);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.profile-photo-small img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.profile-block h2 {
  margin: 0 0 8px;
  font-size: 38px;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.profile-block .role {
  color: var(--muted);
  margin-bottom: 24px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.tag {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 11px;
  background: #fff;
  color: #30343b;
  font-size: 14px;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.profile-links a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: #30343b;
  background: #fff;
  text-decoration: none;
  font-size: 14px;
}

.clean-list,
.pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.clean-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.clean-list li:last-child {
  border-bottom: 0;
}

.label {
  color: var(--muted-light);
  font-weight: 700;
  font-size: 14px;
}

.pub-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.pub-item:last-child {
  border-bottom: 0;
}

.pub-title {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.pub-meta {
  color: var(--muted);
  margin-top: 5px;
  font-size: 15px;
}

.footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  padding: 36px 0;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.footer a {
  color: #30343b;
  text-decoration: none;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .cards-4,
  .cards-3,
  .cards-2 {
    grid-template-columns: 1fr 1fr;
  }

  .section-heading {
    display: block;
  }

  .section-heading p {
    margin-top: 14px;
  }
}

@media (max-width: 760px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu-button {
    display: inline-flex;
  }

  .header-inner {
    min-height: 68px;
  }

  .header-right {
    gap: 10px;
  }

  .hero {
    padding-top: 58px;
  }

  .section {
    padding: 48px 0;
  }

  .cards-4,
  .cards-3,
  .cards-2 {
    grid-template-columns: 1fr;
  }

  .profile-layout {
    grid-template-columns: 1fr;
  }

  .profile-photo-small {
    width: 150px;
  }

  .footer-inner {
    display: block;
  }

  .footer-links {
    margin-top: 16px;
  }
}


.hero-banner {
  width: min(var(--max), calc(100% - 40px));
  margin: 28px auto 0;
}

.hero-banner img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  box-shadow: var(--shadow);
}

.hero-banner+.hero,
.hero-banner+.page-hero {
  padding-top: 40px;
}

@media (max-width: 640px) {
  .hero-banner {
    margin-top: 18px;
  }

  .hero-banner img {
    width: 100%;
    height: auto;
    border-radius: 22px;
  }
}

.alumni-card {
  background: linear-gradient(180deg, #ffffff, #fafbfc);
}


.visitor-card {
  background: linear-gradient(180deg, #ffffff, #fbfcff);
}


.publication-year {
  margin-bottom: 34px;
}

.publication-year h3 {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 24px;
  letter-spacing: -0.03em;
}

.pub-item.featured {
  border-left: 4px solid var(--accent);
  padding-left: 16px;
  background: linear-gradient(90deg, rgba(33, 79, 143, 0.06), rgba(255, 255, 255, 0));
}

.pub-authors {
  color: #30343b;
  margin-top: 5px;
  font-size: 15px;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 9px;
}

.pub-links a {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 9px;
  text-decoration: none;
  color: var(--accent);
  font-size: 13px;
  background: #fff;
}


.profile-details {
  margin-top: 28px;
}

.timeline-list,
.member-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline-list li,
.member-list li {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-list li:last-child,
.member-list li:last-child {
  border-bottom: 0;
}

.item-year,
.item-role {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
}

.item-main {
  color: #30343b;
}

.member-name {
  font-weight: 700;
  color: var(--text);
}

.member-meta {
  color: var(--muted);
  margin-top: 2px;
  font-size: 14px;
}

.compact-section {
  margin-top: 30px;
}

@media (max-width: 640px) {

  .timeline-list li,
  .member-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

.member-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  margin-bottom: 14px;
}

.profile-photo-small {
  overflow: hidden;
}

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

.profile-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.profile-detail-card {
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 1rem;
  background: #fff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.profile-detail-card summary {
  cursor: pointer;
  padding: 1rem 1.1rem;
  font-weight: 700;
  color: #111827;
  list-style: none;
}

.profile-detail-card summary::-webkit-details-marker {
  display: none;
}

.profile-detail-card summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  opacity: 0.55;
}

.profile-detail-card[open] summary::after {
  content: "−";
}

.profile-detail-card ul {
  margin: 0;
  padding: 0 1.1rem 1.1rem 1.1rem;
}

.profile-detail-card li {
  margin: 0.45rem 0;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .profile-detail-grid {
    grid-template-columns: 1fr;
  }
}

/* Featured publication thumbnail cards */
.publication-group {
  margin-top: 0;
}

.publication-group-title {
  margin: 0 0 18px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

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

.featured-publications .pub-list > .pub-item.featured {
  border-left: 0 !important;
  padding: 18px 20px !important;
  background: #fff !important;
  background-image: none !important;
  box-shadow: none !important;
}

.featured-publications .pub-list > .pub-item.with-thumbnail {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.featured-publications .pub-list > .pub-item.featured:nth-of-type(odd),
.featured-publications .pub-list > .pub-item.featured.featured-gradient-left {
  background: linear-gradient(to right, rgba(33, 79, 143, 0.12) 0%, rgba(33, 79, 143, 0.055) 38%, rgba(255, 255, 255, 0) 86%) !important;
  box-shadow: inset 4px 0 0 var(--accent) !important;
}

.featured-publications .pub-list > .pub-item.featured:nth-of-type(even),
.featured-publications .pub-list > .pub-item.featured.featured-gradient-right {
  background: linear-gradient(to left, rgba(33, 79, 143, 0.12) 0%, rgba(33, 79, 143, 0.055) 38%, rgba(255, 255, 255, 0) 86%) !important;
  box-shadow: inset -4px 0 0 var(--accent) !important;
}

.pub-thumb {
  width: 92px;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff, var(--bg-soft));
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  position: relative;
}

.pub-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pub-thumb-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px;
  text-align: center;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.pub-thumb-fallback small {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.pub-thumb img + .pub-thumb-fallback {
  display: none;
}

.pub-thumb.is-missing .pub-thumb-fallback {
  display: flex;
}

.pub-body {
  min-width: 0;
}

.all-publications-details {
  margin-top: 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
  overflow: hidden;
}

.all-publications-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 26px;
  cursor: pointer;
  list-style: none;
  background: linear-gradient(180deg, #ffffff, var(--bg-soft));
}

.all-publications-details summary::-webkit-details-marker {
  display: none;
}

.publication-summary-main {
  color: var(--text);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.publication-summary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 74px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--accent);
  background: #fff;
  font-size: 13px;
  font-weight: 700;
}

.all-publications-list {
  padding: 0 22px 4px;
}

.pub-authors {
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
  margin-top: 5px;
}

@media (max-width: 640px) {
  .featured-publications .pub-list > .pub-item.featured {
    padding-left: 14px !important;
    padding-right: 14px !important;
  }

  .featured-publications .pub-list > .pub-item.with-thumbnail {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 13px;
  }

  .pub-thumb {
    width: 68px;
    border-radius: 14px;
  }

  .pub-thumb-fallback {
    font-size: 9px;
    padding: 7px;
  }

  .pub-thumb-fallback small {
    font-size: 9px;
  }

  .all-publications-details {
    margin-top: 42px;
  }

  .all-publications-details summary {
    align-items: flex-start;
    flex-direction: column;
  }

  .all-publications-list {
    padding-left: 14px;
    padding-right: 14px;
  }
}