/* General Styles */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  color: #333;
}

.section {
  max-width: 900px;
  margin: auto;
  padding: 2rem;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  background: #222;
  padding: 0.5rem 0;
  z-index: 1000;
}

.navbar ul {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

.navbar li {
  margin: 0 1rem;
}

.navbar a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

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

/* Hero */
.hero {
  text-align: center;
  background: white;
}

.profile-img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 4px solid #222;
  object-fit: cover;
}

.intro {
  max-width: 600px;
  margin: 1rem auto;
}

/* Contact */
.contact a {
  color: #0066cc;
}

/* Research */
.research-item {
  background: white;
  padding: 1rem;
  margin: 1rem 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-radius: 8px;
}

.research-item img {
  width: 200px;
  height: auto;
  border-radius: 8px;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
footer {
  background: #222;
  color: white;
  text-align: center;
  padding: 1rem;
}