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

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

.btn-animated {
  transition: all 0.3s ease-in-out;
  transform: scale(1);
}

.btn-animated:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.4);
}

#progress-fill {
  box-shadow: inset 0 0 8px rgba(255, 0, 0, 0.5);
}