.modal-title {
  flex: 1;
  text-align: center;
}

.me-auto {
  flex: 1;
  text-align: center;
  font-size: 15px;
}

.modal-footer.d-flex {
  flex-direction: column;
  align-items: stretch;
}
.modal-footer a {
  margin-bottom: 10px;
  text-align: center;
  width: 100%;
}