#fwb-wrapper {
    position: fixed;
    bottom: 24px;
    z-index: 9999;
}

.fwb-right { right: 24px; }
.fwb-left { left: 24px; }

#fwb-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #25D366;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 6px 18px rgba(0,0,0,0.2);
    font-size: 24px;
    transition: transform .15s ease;
}

#fwb-button:hover { transform: translateY(-4px); text-decoration: none; color: #fff; }

.fwb-icon { font-weight: bold; }

.fwb-hide-mobile { display: block; }
@media (max-width: 600px) {
    .fwb-hide-mobile { display: none !important; }
    #fwb-button { width: 52px; height: 52px; font-size: 20px; }
}