pad-scanner-ui {
  visibility: hidden;
  pointer-events: none;
}

body.barcode-scanner-active pad-scanner-ui {
  visibility: visible;
  pointer-events: auto;
  position: fixed;
  inset: 0;
  z-index: 100000; /* encima de todo, incluso tu modal */
}

/* Contenedor interno */
pad-scanner-ui .scanner-ui {
  position: relative;
  width: 100%;
  height: 100%;
  pointer-events: none; /* no bloquea el escaneo */
}

/* Botones flotantes */
pad-scanner-ui button {
  pointer-events: auto;
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
}

pad-scanner-ui #btn-stop-scan {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

pad-scanner-ui #btn-torch {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
}