.site-whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: calc(22px + env(safe-area-inset-bottom));
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 50%;
  background: #25d366;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25), 0 0 0 5px rgba(37, 211, 102, 0.13);
  transition: transform 180ms ease, background 180ms ease, opacity 180ms ease;
}

.site-whatsapp-float:hover {
  transform: translateY(-3px);
  background: #1fbd59;
}

.site-whatsapp-float img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

body:has(.mobile-menu-panel.open) .site-whatsapp-float {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 600px) {
  .site-whatsapp-float {
    right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom));
    width: 48px;
    height: 48px;
    padding: 10px;
  }
}