:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --text: #18212f;
  --muted: #5e6a79;
  --line: #e4e9f0;
  --navy: #102a43;
  --blue: #1f5f9b;
  --accent: #c73b3b;
  --shadow: 0 12px 36px rgba(16, 42, 67, 0.08);
  --radius: 18px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: .02em;
  color: var(--navy);
}
.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  font-size: .96rem;
  font-weight: 650;
}
.nav-links a.active { color: var(--accent); }

.hero {
  color: #fff;
  min-height: 520px;
  display: grid;
  align-items: center;
  background:
    radial-gradient(circle at 78% 22%, rgba(255,255,255,.18), transparent 22%),
    radial-gradient(circle at 15% 80%, rgba(255,255,255,.10), transparent 24%),
    linear-gradient(135deg, rgba(11,31,52,.96), rgba(17,65,98,.91)),
    repeating-linear-gradient(110deg, rgba(255,255,255,.03) 0 2px, transparent 2px 18px);
}
.hero-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 86px 24px 92px;
}
.kicker {
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .82rem;
  font-weight: 800;
  opacity: .78;
}
.hero h1 {
  max-width: none;
  margin: 14px 0 18px;
  font-size: clamp(2.8rem, 4vw, 4rem);
  line-height: 1.05;
  letter-spacing: -.035em;
  white-space: nowrap;
}

.hero .tagline {
  max-width: none;
  margin: 0;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: rgba(255,255,255,.84);
  white-space: nowrap;
}
.hero-underline {
  width: 92px;
  height: 5px;
  background: var(--accent);
  margin-top: 30px;
  border-radius: 999px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 78px 24px;
}
.section.compact { padding-top: 46px; padding-bottom: 46px; }
.section-title {
  margin: 0 0 12px;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  letter-spacing: -.025em;
  color: var(--navy);
}
.section-lead {
  max-width: 820px;
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0 0 34px;
}
.eyebrow {
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 1.18rem;
}
.card p { margin: 0; color: var(--muted); }

.split {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 34px;
  align-items: start;
}
.callout {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}
.callout h3 { margin-top: 0; font-size: 1.35rem; }
.callout p { color: rgba(255,255,255,.78); }
.button {
  display: inline-block;
  margin-top: 12px;
  padding: 11px 16px;
  border-radius: 999px;
  background: #fff;
  color: var(--navy);
  font-weight: 800;
}
.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.news-list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}
.news-list li:last-child { border-bottom: 0; }
.news-date { color: var(--accent); font-weight: 800; }
.news-text { color: var(--text); }

.page-hero {
  background: linear-gradient(135deg, #102a43, #184f73);
  color: #fff;
}
.page-hero .section { padding-top: 64px; padding-bottom: 64px; }
.page-hero h1 {
  margin: 8px 0 0;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
}
.person {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 42px;
  align-items: start;
}
.avatar {
  width: 170px;
  aspect-ratio: 1;
  border-radius: 22px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #153a59, #286c94);
  color: #fff;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -.04em;
}
.meta { color: var(--muted); }
.meta strong { color: var(--text); }

.pub-list {
  padding-left: 1.25rem;
}
.pub-list li {
  margin-bottom: 18px;
  padding-left: 6px;
}
.note {
  padding: 18px 20px;
  border-left: 4px solid var(--accent);
  background: #fff;
  border-radius: 0 12px 12px 0;
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--line);
  background: #fff;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 34px 24px;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: .92rem;
}

@media (max-width: 820px) {
  .nav { align-items: flex-start; padding-top: 18px; padding-bottom: 18px; }
  .nav-links { gap: 14px; }
  .grid-3, .split { grid-template-columns: 1fr; }
  .person { grid-template-columns: 1fr; }
  .news-list li { grid-template-columns: 1fr; gap: 4px; }
  .hero { min-height: 440px; }

  .hero h1,
  .hero .tagline {
    white-space: normal;
  }
}

.profile-photo {
  width: 230px;
  height: 290px;
  object-fit: cover;
  object-position: center top;
  border-radius: 18px;
  display: block;
}
.korean-intro {
  font-size: 0.98rem;
  color: #687587;
  margin-top: -18px;
  line-height: 1.8;
}
.recruitment-text > p {
  margin: 0 0 20px;
}

.recruitment-korean {
  margin-top: 26px;
  color: #687587;
  font-size: 0.98rem;
  line-height: 1.8;
}

.recruitment-korean p {
  margin: 0 0 10px;
}

.hero-recruiting {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.98rem;
  color: rgba(255,255,255,.82);
}

.hero-recruiting strong {
  color: #fff;
}

.hero-recruiting a {
  color: #fff;
}

.hero-recruiting-link {
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px;
  font-weight: 700;
}

.hero-recruiting-link:hover {
  background: rgba(255,255,255,.10);
  color: #fff;
}

.profile-history {
  margin: 28px 0;
  padding-left: 1.3rem;
  color: var(--text);
}

.profile-history li {
  margin-bottom: 12px;
  line-height: 1.6;
}

.profile-history span {
  color: var(--muted);
  margin-left: 6px;
  white-space: nowrap;
}

.advisor {
  display: inline-block;
  margin-top: 2px;
  margin-left: 0 !important;
  color: var(--muted);
  font-size: 0.94rem;
}

.advisor a {
  color: var(--blue);
  text-decoration: none;
}

.advisor a:hover {
  text-decoration: underline;
}