html.modal-open,
html.modal-open body {
    overflow: hidden;
}

dialog.modal .modal-body,
dialog.modal .help-md {
    overscroll-behavior: contain;
    min-height: 0;
}

dialog.modal:not([open]) {
    display: none;
}
dialog.modal[open] {
    display: flex;
    flex-direction: column;
    margin: auto;
    border: 0;
    padding: 0;
}
dialog.modal::backdrop {
    background: rgb(0 0 0 / 0.5);
    backdrop-filter: blur(4px);
}
dialog.modal:focus {
    outline: none;
}