@media (display-mode: standalone), (max-width: 767px) {
  body:has(#root:empty), body:has(#root > .boot), body:has(#root > [role="status"]:only-child) { background: #f4f6fa; }
  #root:empty::before, #root > .boot::before, #root > [role="status"]:only-child::before {
    content: "Мониторинг";
    position: fixed; inset: 0; z-index: 99;
    display: grid; place-content: center;
    background: #f4f6fa; color: #182338;
    font: 600 24px/1.5 system-ui, sans-serif;
  }
}