:root {
  --app-desktop-max-width: 520px;
}

@media (min-width: 1024px) {
  body {
    --app-desktop-side-padding: max(16px, calc((100vw - var(--app-desktop-max-width)) / 2));
    padding-inline: var(--app-desktop-side-padding);
    box-sizing: border-box;
  }

  .back-btn {
    left: max(8px, calc((100vw - var(--app-desktop-max-width)) / 2 + 8px));
  }
}