body {
  margin: 0;
  font-family: 'Orbitron', sans-serif;
  background: linear-gradient(to top, #0a0f2c, #1e2a78);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
}
.scene {
  text-align: center;
  padding: 2rem;
}
#orb {
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, #ffd700, #ff8c00);
  border-radius: 50%;
  box-shadow: 0 0 30px #ffd700, 0 0 60px #ff8c00;
  margin: 2rem auto;
  animation: pulse 3s infinite ease-in-out;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}