/* Floating WhatsApp Button */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 1050;
    text-decoration: none;
    transition: right .25s ease, transform .2s ease, box-shadow .2s ease;
}
.floating-whatsapp.shifted {
    right: 86px;
}
.floating-whatsapp:hover {
    color: #fff;
    transform: scale(1.08);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
}
.floating-whatsapp::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6);
    animation: wa-pulse 1.8s infinite;
}
@keyframes wa-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
    70%  { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}
@media (max-width: 575.98px) {
    .floating-whatsapp { bottom: 20px; right: 20px; width: 40px; height: 40px; font-size: 1.25rem; }
    .floating-whatsapp.shifted { right: 70px; }
}