body {
  font-family: 'Roboto', sans-serif;
}
.dynamic-bg {
  background: linear-gradient(135deg, #1a202c, #2d3748, #4a5568);
  animation: gradient-animation 6s infinite alternate;
}
@keyframes gradient-animation {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}