.sg-wa-wrapper {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 999999;
    font-family: Arial, sans-serif;
}

.sg-wa-box {
    width: 280px;
    background: #111;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
}

.sg-wa-wrapper.open .sg-wa-box {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.sg-wa-header {
    background: #25D366;
    color: #fff;
    padding: 10px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
}

.sg-wa-body {
    padding: 15px;
    color: #fff;
}

.sg-wa-cta {
    display: block;
    margin-top: 10px;
    background: #25D366;
    color: #fff;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
}

.sg-wa-fab {
    width: 58px;
    height: 58px;
    background: #0f0f0f;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    
    box-shadow: 0 10px 25px rgba(0,0,0,0.35);
    
    transition: 0.3s;
}

.sg-wa-fab:hover {
    transform: translateY(-3px) scale(1.05);
}

@media (max-width:768px){
    .sg-wa-box {
        display: none;
    }
    .sg-wa-wrapper.open .sg-wa-box {
        display: block;
    }
}