/* ================================================================ */

/* Customization */
/* wichtigste Optionen sind in diesem Abschnitt */

/* Farben */
:root {
    /* Seitenhintergrund */
    --color-background: #18001f;

    /* Titelleiste */
    --color-navbar:     #3a102a;

    /* Schriftfarbe */
    --color-font:       #fed;

    /* Links und Inhaltsverzeichnis */
    --color-hyperlink:  #5ce;
}

/* Schriftart */
body {
    font-family: system-ui, -apple-system, Roboto, Arial, sans-serif;
}

/* ================================================================ */

/* Apply Customization */

:root {
    background-color: var(--color-background);
    color: var(--color-font);
}

a {
    color: var(--color-hyperlink);
}

hr {
    border-color: var(--color-font);
}

/* layout */

html {
    scroll-padding-top: 1.5rem;
}

#main-wrapper > * {
max-width: 1080px;
margin: 0 20px;
}

picture {
    display: block;
    max-width: 100%;
}

img,
iframe {
    max-height: 600px;
    margin-left: auto;
    margin-right: auto;
    display: block;
    padding: 15px 0;
    border: none;
}

/* navbar */

nav {
    position: sticky;
    top: 0;
    padding-left: 20px;
    background-color: var(--color-navbar);
    margin-bottom: 7px;
    z-index: 1;
}

nav a {
    color: var(--color-font);
    font-weight: bold;
    padding: 2px 0;
    text-decoration: underline;
}

nav a:hover {
    color: var(--color-hyperlink);
}

/* table of contents */

.toc {
    word-break: break-word;
    text-align: left;
}

.toc ul {
    padding-left: 26px;
    margin-top: 0;
    list-style-type: "\2726";
}

.toc li {
    padding-left: 7px;
}

#desktop-toc {
display: none;
}

#mobile-toc {
margin: 0 10px 7px;
}

/* footnotes */

.footnotes ol li::marker {
    content: "[" counter(list-item) "]  ";
}

/*  */

.main-page .link-to-previous-post {
    text-align: right;
}

/* desktop-specific */

@media (min-width: 800px) {
    #main-wrapper {
    display: grid;
    grid-template-columns: 260px 1fr 20px;
    width: 100%;
    }

    #left-column {
    min-width: 220px;
    }

    #content {
    max-width: 960px;
    text-align: justify;
    }

    #content h1, #content h2, #content h3,
    #content h4, #content h5, #content h6 {
    text-align: left;
    }

    #desktop-toc {
    position: fixed;
    display: inline;
    max-width: 240px;
    height: 100%;
    overflow: scroll;
    margin-left: 20px;
    padding-bottom: 34px;
    }

    #mobile-toc {
    display: none;
    }

    .main-page #left-column hr {
        display: none;
    }

    img, iframe {
        max-height: 700px;
    }
}

@media (min-width: 1100px) {
    #main-wrapper {
    grid-template-columns: 1fr 3fr 1fr;
    }
}