.whatsapp-float {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  min-height: 3.5rem;
  padding: .72rem 1rem;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 999px;
  color: #fff;
  background: #25d366;
  box-shadow: 0 14px 34px rgba(0, 26, 104, .24);
  font: 700 .9rem/1 Montserrat, Arial, sans-serif;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.whatsapp-float svg {
  width: 1.7rem;
  height: 1.7rem;
  fill: currentColor;
  flex: 0 0 auto;
}

.whatsapp-float:hover {
  color: #fff;
  background: #1fbd59;
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(0, 26, 104, .3);
}

.whatsapp-float:focus-visible {
  outline: 3px solid #00dac3;
  outline-offset: 4px;
}

@media (max-width: 520px) {
  .whatsapp-float {
    width: 3.65rem;
    height: 3.65rem;
    justify-content: center;
    padding: 0;
  }

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

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