#app-update-button {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  right: max(12px, env(safe-area-inset-right));
  z-index: 2147483647;
  max-width: calc(100vw - 24px);
  padding: 10px 14px;
  background: #167344;
  color: #fff;
  border: 1px solid #105b34;
  border-radius: 6px;
  box-shadow: 0 2px 8px #0003;
  cursor: pointer;
  font: 600 14px sans-serif;
  letter-spacing: 0;
}
#app-update-button[hidden], #app-update-error[hidden] { display: none; }
#app-update-dialog {
  position: fixed;
  inset: 0;
  margin: auto;
  box-sizing: border-box;
  width: min(420px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  overflow: auto;
  padding: 24px;
  background: #fff;
  color: #202326;
  border: 1px solid #d6dade;
  border-radius: 8px;
  font: 16px/1.5 sans-serif;
  letter-spacing: 0;
}
#app-update-dialog::backdrop { background: #0007; }
#app-update-dialog h2 { font-size: 21px; margin: 0 0 12px; }
#app-update-dialog p { margin: 0 0 20px; }
.app-update-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px; }
#app-update-dialog button {
  padding: 10px 14px;
  border: 1px solid #c4c9ce;
  border-radius: 6px;
  background: #fff;
  color: #202326;
  cursor: pointer;
  font: 600 14px sans-serif;
}
#app-update-dialog #app-update-now { background: #167344; border-color: #167344; color: #fff; }
#app-update-dialog button:disabled { opacity: .6; cursor: wait; }
#app-update-error { color: #b42318; }
#app-update-button:focus-visible, #app-update-dialog button:focus-visible { outline: 3px solid #2479bd; outline-offset: 3px; }