/* Botón flotante de WhatsApp (todo el sitio) */
.wa-float{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:90;display:flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;background:#25D366;box-shadow:0 4px 16px rgba(0,0,0,.3);text-decoration:none;transition:transform .2s,box-shadow .2s}
.wa-float:hover{transform:scale(1.07);box-shadow:0 6px 22px rgba(0,0,0,.35)}
.wa-float:focus-visible{outline:3px solid #fff;outline-offset:3px}
.wa-float svg{width:32px;height:32px;fill:#fff}
@media(min-width:860px){.wa-float{right:24px;bottom:24px;width:62px;height:62px}.wa-float svg{width:34px;height:34px}}
@media print{.wa-float{display:none}}