.price-fab-btn {
  position: fixed;
  top: 110px;
  left: 20px;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 50px;
  background: linear-gradient(90deg, #0f7a3d, #22c55e, #4ade80, #22c55e, #0f7a3d);
  background-size: 300% 100%;
  animation: price-fab-shimmer 3s linear infinite;
  color: #ffffff;
  font-family: Arial, sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.5px;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(15,122,61,0.45);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.price-fab-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 8px 24px rgba(15,122,61,0.6);
  color: #ffffff;
}
.price-fab-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
@keyframes price-fab-shimmer {
  0%   { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}
@media (max-width: 640px) {
  .price-fab-btn {
    top: auto;
    bottom: 100px;
    left: 14px;
    padding: 10px 18px;
    font-size: 14px;
  }
}