/* Pulsante flottante WhatsApp (in basso a sinistra) */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-float:hover {
    transform: scale(1.06);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
    color: #fff;
}

.whatsapp-float:focus-visible {
    outline: 3px solid #128c7e;
    outline-offset: 3px;
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .whatsapp-float {
        bottom: 18px;
        left: 18px;
        width: 52px;
        height: 52px;
    }

    .whatsapp-float svg {
        width: 26px;
        height: 26px;
    }
}