body{
  font-family:sans-serif;
  background:linear-gradient(135deg,#e3f2fd,#fff);
  text-align:center;
  padding:20px;
}

.sub{color:#555}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:20px;
  max-width:500px;
  margin:30px auto;
}

.card{
  background:#fff;
  border-radius:20px;
  padding:20px;
  box-shadow:0 10px 25px rgba(0,0,0,.15);
  cursor:pointer;
  position:relative;
  transition:.3s;
}

.card:hover{transform:translateY(-6px)}

.card img{width:90px;margin:10px auto}

.number{
  position:absolute;
  top:10px;
  left:10px;
  background:#1976d2;
  color:#fff;
  width:32px;
  height:32px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:bold;
}

#status{
  margin-top:20px;
  font-weight:bold;
}

/* Popup */
#installPopup{
  position:fixed;
  bottom:20px;
  left:50%;
  transform:translateX(-50%);
  background:#1976d2;
  color:#fff;
  padding:15px 20px;
  border-radius:15px;
  display:none;
}

#installPopup button{
  margin:5px;
  padding:8px 15px;
  border:none;
  border-radius:8px;
}

.close{background:#ccc}