.btn {
  position: relative;
  width: 11rem;
  height: 3.5rem;
  border: none;
  border-radius: 3rem;
  cursor: pointer;
  background: linear-gradient(to top, #cfd9df 0%, #e2ebf0 100%);
  font-size: 1.2rem;
  font-weight: 550;
  font-family: sans-serif;
  letter-spacing: 1px;
  transition: all 0.3s;
}

.btn::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  border-radius: 3rem;
  width: 100%;
  height: 100%;
  padding: 2px;
  background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
  z-index: -1;
}

.btn:hover {
  background: #315cfd;
  background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
  color: white;
  font-size: 1.3rem;
}