.form-submission-message {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 15px 25px;
  border-radius: 8px;
  color: white;
  font-size: 16px;
  font-weight: 500;
  z-index: 10000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: opacity 0.5s ease;
}
.form-submission-message.success {
  background-color: #4caf50;
}
.form-submission-message.error {
  background-color: #f44336;
}