.us-landing .us-whatsapp-float {
  position: fixed;
  z-index: 1100;
  right: 28px;
  bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  border: 2px solid #fff;
  box-shadow: 0 12px 28px rgba(0, 0, 0, .20), 0 2px 8px rgba(18, 68, 44, .15);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.us-landing .us-whatsapp-float:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 18px 34px rgba(0, 0, 0, .23), 0 4px 12px rgba(18, 68, 44, .18);
}

.us-landing .us-whatsapp-float:focus-visible {
  outline: 3px solid #102e3a;
  outline-offset: 4px;
}

.us-landing .us-whatsapp-float img { display: block; width: 38px; height: 38px; object-fit: contain; }

.us-landing .us-whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  width: max-content;
  max-width: min(220px, calc(100vw - 100px));
  padding: 9px 12px;
  border-radius: 8px;
  background: #102e3a;
  color: #fff;
  font-size: 13px;
  font-weight: 750;
  opacity: 0;
  pointer-events: none;
  transform: translateX(5px);
  transition: opacity .2s ease, transform .2s ease;
}

.us-landing .us-whatsapp-float:hover .us-whatsapp-tooltip,
.us-landing .us-whatsapp-float:focus-visible .us-whatsapp-tooltip {
  opacity: 1;
  transform: none;
}

@media (max-width: 650px) {
  .us-landing .us-whatsapp-float {
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    width: 58px;
    height: 58px;
  }
  .us-landing .us-whatsapp-float img { width: 35px; height: 35px; }
  .us-landing .us-whatsapp-tooltip { display: none; }
}

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