.custom-chat-fab {
  position: relative; /* Needed for absolute ::before */
  background-color: #ffffff; /* White FAB background */
  border: none;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.custom-chat-fab::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 32px; /* Size your icon here */
  height: 32px;
  transform: translate(-50%, -50%);
  background-image: url("../../images/chat-icon.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  pointer-events: none; /* Allow click to pass through */
}