.btn-whatsapp {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.35);
    cursor: pointer;
    z-index: 1000;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
    text-decoration: none; /* Quita el underline */
}

    /* Hover elegante */
    .btn-whatsapp:hover {
        background-color: #1ebe5d;
        transform: translateY(-4px) scale(1.05);
        box-shadow: 0 15px 35px rgba(37, 211, 102, 0.45);
    }

    /* Click */
    .btn-whatsapp:active {
        transform: scale(0.95);
    }

    /* Accesibilidad */
    .btn-whatsapp:focus {
        outline: none;
    }

    /* Ícono */
    .btn-whatsapp i {
        color: white;
    }

    .btn-whatsapp,
    .btn-whatsapp:hover,
    .btn-whatsapp:focus,
    .btn-whatsapp:active {
        text-decoration: none;
    }