:root {
    --app-letter-spacing: 0px;
  }
  
  /* Apply letter-spacing to common app elements */
  .shopify-app-block,
  .shopify-buy-frame,
  div[data-shopify-app],
  div[data-app-id],
  div[class*="app-"],
  div[class*="App"],
  #bundle-container,
  #bundle-app,
  [data-bundle-app],
  .bundle-builder,
  #ReCharge,
  [data-rebuy-id],
  [data-rebuy-container],
  [data-bold-bundle],
  [data-loyalty-container] {
    letter-spacing: var(--app-letter-spacing) !important;
  }