.btn-sticky-contact {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(29, 113, 184, 1);
  backdrop-filter: blur(5px);
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  border-radius: 6px;
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
  z-index: 9999;
  transition: background 0.3s ease, transform 0.3s ease;
}
.btn-sticky-contact:hover {
  background: rgba(255, 153, 0, 1);
  transform: translateX(-50%) scale(1.05);
}