.interactive-btn {
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.interactive-btn::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 3s linear infinite;
  animation-play-state: paused;
}

.interactive-btn:hover::before {
  animation-play-state: running;
}

.interactive-btn:hover {
  transform: translateY(-2px);
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}