/* ============ BOTÃO FLUTUANTE DO WHATSAPP ============ */
.wa-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.18);
  transition: transform .3s ease, box-shadow .3s ease;
}
.wa-float:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.4);
}
.wa-float:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 4px;
}
.wa-float svg { width: 30px; height: 30px; }

.wa-float::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid #25d366;
  animation: wa-pulse 2.6s ease-out infinite;
  pointer-events: none;
}
@keyframes wa-pulse {
  0%   { transform: scale(1);   opacity: .55; }
  100% { transform: scale(1.7); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .wa-float::after { animation: none; display: none; }
  .wa-float { transition: none; }
}

@media (max-width: 720px) {
  .wa-float {
    right: 16px;
    bottom: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    width: 56px;
    height: 56px;
  }
  .wa-float svg { width: 28px; height: 28px; }
}