body { margin: 0; }

/* Shared across all pages: floating WhatsApp button */
.wa-fab {
  position: fixed; z-index: 20;
  right: max(18px, env(safe-area-inset-right, 0px));
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  background: #25d366; color: #fff;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
}
.wa-fab svg { width: 30px; height: 30px; }
@media (prefers-reduced-motion: no-preference) {
  .wa-fab { transition: transform 0.15s ease; }
  .wa-fab:hover { transform: scale(1.07); }
}