/* Cached sections stay mounted so embedded viewers retain their state. */
#wrapper > [hidden] {
    display: none !important;
}

/* Opening/closing the mobile menu must not fade the background and page shell. */
body.has-section-navigation #wrapper {
    opacity: 1;
    transition: none;
}

body.has-section-navigation #nav {
    transition: none;
}

body.has-section-navigation #header .logo {
    transition: border-color 0.2s ease-in-out, color 0.2s ease-in-out;
}

body.is-section-loading #nav a,
body.is-section-loading #navPanel .links a {
    cursor: progress;
}

/* Focus moves to the new content for keyboard and screen-reader navigation. */
#main[tabindex="-1"]:focus {
    outline: none;
}