.whatsapp-float {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1050;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
}

.whatsapp-float:hover {
    color: #fff;
    transform: scale(1.06);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.55);
}

@media (max-width: 576px) {
    .whatsapp-float {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
        font-size: 26px;
    }
}