.whatsapp-float{position:fixed;right:24px;bottom:max(24px,env(safe-area-inset-bottom));z-index:40;display:block;width:60px;height:60px;border:0;border-radius:50%;overflow:hidden;background:#20b184;box-shadow:0 4px 20px #0a254035;text-decoration:none;transition:transform .2s}
/* Recorte visual de la imagen original: círculo de 467 px dentro de 895 × 553.
   El archivo se conserva intacto; el fondo exterior queda fuera de la burbuja. */
.whatsapp-float img{position:absolute;left:50%;top:50%;width:191.65%;max-width:none;height:auto;transform:translate(-50%,-50%);pointer-events:none}
.whatsapp-float:hover{transform:translateY(-2px)}
.whatsapp-float:focus-visible{outline:3px solid var(--navy);outline-offset:4px}
@media(max-width:760px){.whatsapp-float{right:16px;bottom:max(16px,env(safe-area-inset-bottom));width:56px;height:56px}}
@media(prefers-reduced-motion:reduce){.whatsapp-float{transition:none}}