.navbar {
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.profile-pic {
  object-fit: cover;
  border: 2px solid #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card {
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-2px);
}

.appreciation-btn.appreciated {
  background-color: #198754;
  color: white;
}

.research-stats .badge {
  font-size: 1rem;
}