.whatsapp-chat {
  position: fixed;
  z-index: 90;
  right: 22px;
  bottom: 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 8px 16px 8px 8px;
  border: 1px solid rgba(42, 36, 31, .18);
  border-radius: 999px;
  background: #fffaf4;
  color: #2a241f;
  font: 700 .86rem/1.2 Inter, Arial, sans-serif;
  text-decoration: none;
  box-shadow: 0 12px 32px rgba(42, 36, 31, .18);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.whatsapp-chat:hover,
.whatsapp-chat:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(240, 74, 29, .55);
  box-shadow: 0 16px 38px rgba(42, 36, 31, .23);
}

.whatsapp-chat:focus-visible {
  outline: 3px solid rgba(240, 74, 29, .28);
  outline-offset: 3px;
}

.whatsapp-chat-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: 50%;
  background: #f04a1d;
  color: #fff;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
}

@media (max-width: 520px) {
  .whatsapp-chat {
    right: 13px;
    bottom: 13px;
    padding-right: 12px;
    font-size: .78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .whatsapp-chat { transition: none; }
}