#ifsr-pwa-install{
position:fixed;right:18px;bottom:18px;z-index:999999;
border:0;border-radius:999px;padding:13px 20px;
background:#17458f;color:#fff;font:700 15px/1.2 Arial,sans-serif;
box-shadow:0 8px 24px rgba(0,0,0,.24);cursor:pointer
}
#ifsr-pwa-install:hover{filter:brightness(1.08)}
#ifsr-pwa-install[hidden]{display:none!important}
@media(max-width:600px){#ifsr-pwa-install{right:12px;bottom:12px;padding:12px 16px;font-size:14px}}