* {
    --fg-color: black;
    --bg-color: white;

    --code-bg-color: white;
    --inline-code-bg: #f4f4f4;
    --code-box-shadow:  0 4px 12px #59556533;

    --link-color: #321bd1;
    --link-visited-color: #4c15b1;


    --dim-color: #777;

    --sidebar-fg: black;
    --sidebar-bg: #fafafa;

    --quote-bg: hsl(197, 37%, 96%);
    --quote-border: hsl(197, 37%, 91%);


    --mono-font: "Source Code Pro", Consolas, "Ubuntu Mono", Menlo, "DejaVu Sans Mono", monospace, monospace;
    --code-font-size: 0.875em; /* please adjust the ace font size accordingly in editor.js */
}

@media (prefers-color-scheme: dark) {
    * {
        --fg-color: white;
        --bg-color: hsl(210, 25%, 8%);

        --code-bg-color: #191f26;
        --inline-code-bg: var(--code-bg-color);
        --code-box-shadow:  none;

        --link-color: #8989ff;
        --link-visited-color: #b389ff;

        --dim-color: #777;

        --sidebar-fg: white;
        --sidebar-bg: #14191f;

        --quote-bg: hsl(226, 15%, 17%);
        --quote-border: hsl(226, 15%, 22%);
    }
}

* {
    --sidebar-active: var(--link-color);
}



body {
    background-color: var(--bg-color);
    color: var(--fg-color);
    margin: 0;
    padding: 0;

    display: grid;
    /* grid-template-rows: [header-left] 30px [header-right main-left] 1fr [main-right footer-left] 30px [footer-right]; */
    grid-template-columns: min-content 1fr;
    grid-template-areas: "nav head" "nav main" "nav foot"  "nav nav-buttons";
    font-family: "Open Sans", sans-serif;
}

/* Footnotes */
body > section {
    max-width: 750px;
    width: 100%;
    grid-area: foot;
    margin: 0 auto;
}

blockquote {
    padding: 20px 20px;
    margin: 20px 0;
    color: var(--fg);
    background-color: var(--quote-bg);
    border-block-start: .1em solid var(--quote-border);
    border-block-end: .1em solid var(--quote-border);

    p:first-of-type {
        margin-top: 0;
    }
}

a {
    color: var(--link-color);
    text-decoration: none;
}
a:visited {
    color: var(--link-visited-color)
}


.clickable {
    cursor: pointer;
}

.menu-bar {
    grid-area: head;

    position: sticky;
    top: 0;
    background-color: var(--bg-color);
    font-size: 1.4em;

    display: flex;
    overflow: hidden;

    .clickable {
        color: var(--dim-color);
        padding: 0.5em;
    }

    h1 {
        padding: 0.5em;
        display: inline-block;
        font-weight: 200;
        font-size: 1em;
        line-height: var(--menu-bar-height);
        text-align: center;
        margin: 0;
        flex: 1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex-grow: 1
    }
}

.sidebar {
    grid-area: nav;

    position: sticky;
    height: 100vh;
    left: 0;
    top: 0;
    bottom: 0;
    overscroll-behavior-y: contain;
    overflow: scroll;

    font-size: 0.875em;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-fg);


    padding: 1em;

    line-height: 1.5em;

    a {
        color: var(--sidebar-fg);
        text-decoration: none;
    }

    .active-page, a:hover {
        color: var(--sidebar-active);
    }

    li {
        margin-block-start: 0.5em;
        list-style: none outside none;
        white-space: nowrap;
    }
    .chapter-title {
        list-style: none outside none;
        line-height: 2.2em;
    }

    > ol {
        padding: 0;
        margin: 0;

        ol {
            padding-left: 1em;
        }
    }
}

/* The sidebar toggling logic */
#sidebar-visible-slim, #sidebar-visible-wide {
    display: none;
}
@media (min-width: 900px) {
    .sidebar-button-slim {
        display: none;
    }

    #sidebar-visible-wide:checked ~ .sidebar {
        width: 0;
        overflow: hidden;
        padding: 0;
    }
}
@media (max-width: 900px) {
    .sidebar-button-wide {
        display: none;
    }

    #sidebar-visible-slim:not(:checked) ~ .sidebar {
        width: 0;
        overflow: hidden;
        padding: 0;
    }
}

.nav-buttons {
    display: flex;
    flex-wrap: wrap;
    grid-area: nav-buttons;

    max-width: 750px;
    margin: 0px auto;
    width: 100%;

    .spacer {
        flex-grow: 1;
    }

    a {
        display: grid;
        grid-template-columns: min-content 1fr;
        grid-template-areas: "icon title" "icon subtitle";

        padding: 1em;
        border-radius: 0.5em;
        border: 1px solid var(--dim-color);
        margin: 1em 1em;
        color: var(--fg-color);

        .button-icon {
            padding-right: 0.5em;
            font-size: 2rem;
            grid-area: icon;
        }
        .button-title {
            grid-area: title;
        }
        .button-subtitle {
            grid-area: subtitle;
            font-size: 0.8em;
            color: var(--dim-color)
        }
    }
    a:last-of-type {
        grid-template-areas: "title icon" "subtitle icon";
        grid-template-columns: 1fr min-content;
        .button-icon {
            padding-right: 0em;
            padding-left: 0.5em;
        }
        .button-title, .button-subtitle {
            text-align: right;
        }
    }
    a:hover {
        color: var(--link-color)
    }
}

@media (max-width: 500px) {
    .nav-buttons a {
        width: 100%;
    }
}


main {
    max-width: 750px;
    margin: 0 auto;
    grid-area: main;
}

:not(pre) > code {
    border-radius: 0.3em;
    padding: 0.2em;
    background-color: var(--inline-code-bg)
}

.code-container {
    width: 100%;
    display: grid;
}

code {
    font-family: var(--mono-font) !important;
    font-weight: 500;
}

pre {
    overflow-x: auto;
    background-color: var(--code-bg-color);
    border-radius: 6px;
    box-shadow: var(--code-box-shadow);
    padding: 1rem;

    code {
        font-size: var(--code-font-size);
        direction: ltr !important;
    }
}


@media (prefers-color-scheme: dark) {
    pre::before {
        content: "";
        position: absolute;
        inset: 0;
        border-radius: var(--border-radius);
        padding: 2px;
        background: var(--outline-gradient);
        mask: conic-gradient(#000 0 0) content-box,conic-gradient(#000 0 0);
            mask-composite: add, add;
        mask-composite: exclude;
        pointer-events: none;
    }
}


.content {
    padding: 20pt;

    img {
        display: block;
        width: auto;
        height: auto;
        max-width: 100%;
        overflow: scroll;
    }

    p {
        line-height: 1.5em;
    }

    h1, h2, h3, h4, h5, h6 {
        a {
            color: var(--fg-color);
        }
    }
}

:target {
    scroll-margin-top: 150px;
}

/* Fixes weird vertical space */
math{font-family:STIX}

.footnote-definition {
    font-size: 0.9em;

    > li {
        margin-bottom: 0.5em;
    }
}