/* Persistent WhatsApp shortcut. The visible content is only the icon; the
   accompanying text remains available to assistive technology. */
.floating-whatsapp a {
  width: 48px;
  height: 48px;
  box-sizing: border-box;
  padding: 0 !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  animation: floating-whatsapp-glow 2.8s ease-in-out infinite;
}

.floating-whatsapp a svg { margin: 0 !important; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes floating-whatsapp-glow {
  0%, 100% { filter: drop-shadow(0 0 0 rgba(232,144,90,0)); }
  50% { filter: drop-shadow(0 0 16px rgba(232,144,90,0.72)); }
}

@media (prefers-reduced-motion: reduce) {
  .floating-whatsapp a {
    animation: none;
    filter: drop-shadow(0 0 8px rgba(232,144,90,0.36));
  }
}