* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Roboto", "Helvetica Neue", Arial, sans-serif;
  color: #1f2937;
  line-height: 1.7;
  background: #f8fafc;
}

.hero-card {
  background: #ffffff;
  border: none;
  border-radius: 20px;
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0, 60, 120, 0.12);
}

.hero-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
}
a {
  color: #1d4ed8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  gap: 20px;
}

.logo {
  font-size: 22px;
  margin: 0;
  color: #0f172a;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

nav a {
  color: #334155;
  font-weight: 500;
}

.hero {
  background: linear-gradient(135deg, #eff6ff, #ffffff);
  padding: 70px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 36px;
  align-items: center;
}

.hero h2 {
  font-size: 40px;
  line-height: 1.25;
  margin: 0 0 16px;
  color: #0f172a;
}

.hero p {
  font-size: 18px;
  color: #475569;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  margin-top: 24px;
}

.button {
  display: inline-block;
  background: #1d4ed8;
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
}

.button.secondary {
  background: #e0e7ff;
  color: #1e3a8a;
}



.section,
.page {
  padding: 48px 0;
}

.section h2,
.page h2 {
  font-size: 30px;
  margin-bottom: 22px;
  color: #0f172a;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card,
.member-card,
.research-item,
.contact-box {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

.card h3,
.research-item h3 {
  margin-top: 0;
  color: #1e3a8a;
}

.news-list {
  background: white;
  border-radius: 14px;
  padding: 22px 28px;
  border: 1px solid #e5e7eb;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 34px;
}

.research-flex {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 28px;
  align-items: center;
}

.research-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
}

.research-text {
  text-align: justify;
}

.research-text h3 {
  text-align: left;
  margin-top: 0;
}


.research-text p {
  margin-bottom: 14px;
}

@media (max-width: 800px) {
  .research-flex {
    grid-template-columns: 1fr;
  }
}




.member-photo {
  width: 100%;
  max-width: 260px;
  height: auto;
  display: block;
  border-radius: 12px;
  margin: 0 auto 16px;
}

.member-card h4 {
  margin-bottom: 8px;
  font-size: 20px;
}

.photo-placeholder {
  height: 160px;
  background: #e2e8f0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  margin-bottom: 16px;
}

.pub-list li {
  margin-bottom: 14px;
}

footer {
  text-align: center;
  padding: 28px 0;
  background: #0f172a;
  color: #cbd5e1;
  margin-top: 40px;
}

@media (max-width: 800px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-grid,
  .cards,
  .member-grid {
    grid-template-columns: 1fr;
  }

  .hero h2 {
    font-size: 30px;
  }
}