/* No intermediate default tab/font size/closed accordions during startup.
   Layout still runs normally; the original body background stays visible. */
html.app-hydrating body > :not(script):not(style) { visibility: hidden; }
html.app-hydrating *,
html.app-hydrating *::before,
html.app-hydrating *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
}