@keyframes floatBounce {
  0%   { transform: translateY(0); }
  50%  { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}

#floatingBox {
  animation: floatBounce 3s ease-in-out infinite;
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 280px;
  background: linear-gradient(to right, #1976d2, #42a5f5);
  border-radius: 1rem;
  z-index: 9999;
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: opacity 0.3s ease;
  cursor: move;
  user-select: none;
}

.close-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  color: white;
  background: transparent;
  border: none;
  font-size: 18px;
  cursor: pointer;
  opacity: 0.8;
}
.close-btn:hover {
  opacity: 1;
}