.gradient-bg {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
}
.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}
.sidebar {
  transition: all 0.3s ease;
}
.sidebar-collapsed {
  width: 80px;
}
.sidebar-expanded {
  width: 260px;
}
.main-content {
  transition: margin-left 0.3s ease;
}
.active-nav-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-left: 4px solid white;
}
.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}