.bb-pwa-install{
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: 16px;
    z-index: 9999;
    max-width: 520px;
    margin: 0 auto;
    padding: 14px 14px;
    border: 1px solid rgba(215,184,75,.35);
    border-radius: 18px;
    background: rgba(12,12,12,.96);
    box-shadow: 0 18px 50px rgba(0,0,0,.45);
    color: #fff;
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 12px;
    align-items: center;
    backdrop-filter: blur(14px);
}
.bb-pwa-install[hidden]{display:none!important}
.bb-pwa-install strong{display:block;color:#ffe58a;font-size:14px;line-height:1.2}
.bb-pwa-install span{display:block;color:#cfc8b2;font-size:12px;line-height:1.35;margin-top:2px}
.bb-pwa-close{
    width:32px;height:32px;border-radius:999px;border:1px solid rgba(255,255,255,.12);
    color:#fff;background:rgba(255,255,255,.08);font-size:18px;font-weight:800;cursor:pointer;
}
@media (max-width:520px){
    .bb-pwa-install{grid-template-columns:1fr; text-align:left; bottom:12px; left:12px; right:12px;}
    .bb-pwa-install .btn{width:100%;}
    .bb-pwa-close{position:absolute;top:8px;right:8px;width:26px;height:26px;font-size:15px;}
    .bb-pwa-install div{padding-right:32px;}
}