/* Botón flotante de WhatsApp - visible en todas las páginas */

.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45), 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    text-decoration: none;
    border: none;
}

.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5), 0 4px 12px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.whatsapp-float:active {
    transform: scale(0.98);
}

.whatsapp-float i {
    font-size: 28px;
}

@media (max-width: 640px) {
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
    }
    .whatsapp-float i {
        font-size: 26px;
    }
}