body {
  padding-top: 20px;
  background-color: #f8f9fa;
}
.navbar-brand {
  font-weight: bold;
}
.post-card {
  transition: transform 0.3s;
}
.post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}
.user-greeting {
  color: #6c757d;
}