.hidden {
  display: none !important;
}

.rounded {
  border-radius: 10px;
}

.shadow-sm {
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.shadow-md {
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}