Twilight

.btn-twilight {
  display: inline-block;
  padding: 13px 28px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(120deg, #0ea5e9, #7c3aed);
  background-size: 200% auto;
  background-position: left center;
  color: #ffffff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-position 0.4s ease, box-shadow 0.2s ease;
}
.btn-twilight:hover {
  background-position: right center;
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.4);
}