.btn-wsp {
    position: fixed;
    width: 64px;
    height: 65px;
    bottom: 150px;
    right: 25px;
    background: #931819;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 70px;
    font-size: 40px;
    z-index: 100;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    animation: bounce 2s infinite ease-in-out;
    overflow: hidden;
}

/* Ondas pulsantes alrededor */
.btn-wsp::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid #931819;
    border-radius: 50%;
    top: 0;
    left: 0;
    transform: scale(1);
    opacity: 0.7;
    animation: ripple 2s infinite ease-out;
}

/* Efecto de rebote (bounce) */
@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Animación de onda expansiva */
@keyframes ripple {
    0% { transform: scale(1); opacity: 0.7; }
    70% { transform: scale(1.8); opacity: 0; }
    100% { opacity: 0; }
}

/* Hover con zoom */
.btn-wsp:hover {
    background: #931819;
    transform: scale(1.15);
    transition: transform 0.3s ease;
}