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

.section-background {
  height: 100vh;
  background: linear-gradient(-45deg, #ff9a9e, #fad0c4, #fbc2eb, #a18cd1);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}