:root {
  --primary:#0d6efd; --secondary:#6c757d;
}
body { font-family:'Cairo',sans-serif; }
.card { border:none; border-radius:.75rem; box-shadow:0 .125rem .25rem rgba(0,0,0,.075); }
.btn { border-radius:.5rem; }
.shorten-box { max-width:700px; }
.qr-img { width:120px; }