.sfb-container {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    z-index: 9999;
}

/* Tooltip */
.sfb-tooltip {
    background: #333;
    color: #fff;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 20px;
}

/* Buttons */
.sfb-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 50px;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: 0.3s;
    position: relative;
}

.sfb-btn:hover {
    transform: translateY(-3px) scale(1.05);
}

.whatsapp { background: #25D366; }
.call { background: #385399; }

.sfb-btn i {
    font-size: 20px;
}

/* Pulse */
.pulse::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50px;
    background: rgba(37,211,102,0.6);
    animation: pulse 1.8s infinite;
    z-index: -1;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.7; }
    70% { transform: scale(1.4); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

/* Mobile */
@media (max-width: 768px) {
    .sfb-btn span { display: none; }

    .sfb-btn {
        width: 55px;
        height: 55px;
        justify-content: center;
        border-radius: 50%;
        padding: 0;
    }
}