.portal-navigation-dialog {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: #f7f7f8;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
}

.portal-navigation-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
}

.public-mobile-navigation {
    display: none;
    padding: 12px;
    color: #30343b;
}

.portal-navigation-dialog[open] > .public-mobile-navigation {
    display: block;
}

.public-mobile-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.public-mobile-navigation strong {
    display: block;
    margin: 16px 0 8px;
    padding: 12px 12px 0;
    border-top: 1px solid #dcdfe3;
    font-size: 14px;
}

.public-mobile-navigation a,
.public-mobile-navigation .w3-button {
    display: block;
    width: 100%;
    min-height: 44px;
    margin: 0 0 4px;
    padding: 10px 12px;
    border-radius: 8px;
    color: #30343b;
    font-size: 16px;
    line-height: 1.5;
    text-align: left;
    text-decoration: none;
    white-space: normal;
    transition: background-color 160ms ease, color 160ms ease;
}

.public-mobile-navigation a:hover,
.public-mobile-navigation .w3-button:hover {
    background-color: #e9eaed !important;
    color: #222 !important;
}

.public-mobile-navigation a:focus-visible,
.public-mobile-navigation .w3-button:focus-visible {
    outline: 2px solid #222;
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .public-mobile-navigation a,
    .public-mobile-navigation .w3-button {
        transition: none;
    }
}

/* Override W3.CSS collapse and fixed-sidebar rules inside the modal. */
.portal-navigation-dialog[open] > .w3-sidebar {
    display: block !important;
    position: static !important;
    width: 100%;
    height: auto;
    min-height: 100%;
    overflow: visible;
    animation: none;
}

#mySidebar .portal-navigation-close,
#adminSidebar .portal-navigation-close {
    display: none;
}

.portal-navigation-dialog[open] #mySidebar .portal-navigation-close,
.portal-navigation-dialog[open] #adminSidebar .portal-navigation-close {
    display: block;
}