/* Mobile app hardening: keep the diary focused and prevent accidental horizontal overflow. */
@media (max-width:900px){
  .diary-mode [data-diary-mode="board"]{display:none!important}
  .diary-mode{grid-template-columns:1fr 1fr!important}
  html,body{max-width:100%;overflow-x:hidden;overflow-y:visible;height:auto}
  .modal,.sheet,.quick-book-form,.cert-form{max-width:100vw}
}