.btn-daftar {
  display: inline-block;
  padding: 14px 28px;
  font-size: 1rem;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  background: linear-gradient(270deg, #00c6ff, #0072ff, #00c6ff);
  background-size: 600% 600%;
  animation: shimmer 6s ease infinite;
  text-align: center;
  font-weight: bold;
  box-shadow: 0 0 15px rgba(0, 194, 255, 0.4);
  transition: transform 0.2s ease;
}

.btn-daftar:hover {
  transform: scale(1.05);
}

@keyframes shimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}