.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 1055;
  }
  .theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1100;
  }
  #qrCanvas {
    max-width: 100%;
    height: auto;
    max-height: 350px;
  }