.app-alert{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.55);
  z-index:99999;
  align-items:center;
  justify-content:center;
}

.app-alert-box{
  width:85%;
  max-width:340px;
  background:#fff;
  border-radius:18px;
  padding:22px;
  text-align:center;
  box-shadow:0 10px 30px rgba(0,0,0,.2);
}

.app-alert-box h3{
  margin:0 0 12px;
  color:#b02a37;
}

.app-alert-box p{
  margin:0 0 18px;
  color:#444;
  line-height:1.5;
}

.app-alert-box button{
  width:100%;
  padding:12px;
  border:none;
  border-radius:12px;
  background:#0f7a3d;
  color:#fff;
  font-weight:600;
}