/* WhatsApp - ícono flotante siempre visible */
.whatsapp-fab {
    position: fixed;
    left: 18px;
    bottom: 10%;
    z-index: 1000;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    animation: wafloat 3s ease-in-out infinite;
    text-decoration: none;
}

.whatsapp-fab__icon {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #25d366;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37,211,102,0.45);
    flex-shrink: 0;
    transition: transform 0.2s;
}
.whatsapp-fab__icon i {
    color: #fff;
    font-size: 2rem;
}
.whatsapp-fab:hover .whatsapp-fab__icon {
    transform: scale(1.1);
}

.whatsapp-fab__label {
    background: #fff;
    color: #111;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.18);
    white-space: nowrap;
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity 0.25s, transform 0.25s;
    pointer-events: none;
}
.whatsapp-fab:hover .whatsapp-fab__label {
    opacity: 1;
    transform: translateX(0);
}

@keyframes wafloat {
    0%, 100% { margin-top: 0; }
    50%       { margin-top: -14px; }
}

@media (max-width: 768px) {
    .whatsapp-fab { left: 12px; }
    .whatsapp-fab__icon { width: 50px; height: 50px; }
    .whatsapp-fab__icon i { font-size: 1.7rem; }
    .whatsapp-fab__label { display: none; }
}