.ca-assistant-button {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9999;
  border: 0;
  border-radius: 999px;
  padding: 13px 18px;
  color: #ffffff;
  background: #123c69;
  box-shadow: 0 10px 28px rgba(18, 60, 105, 0.24);
  font: 600 15px/1.2 Arial, sans-serif;
  cursor: pointer;
}

.ca-assistant-button:hover {
  background: #0b2745;
}

@media (max-width: 520px) {
  .ca-assistant-button {
    right: 12px;
    bottom: 12px;
    max-width: calc(100vw - 24px);
  }
}