/* CSS for UI elements (a.k.a. chrome) */

html {
    scrollbar-color: var(--scrollbar) transparent;
}
#mdbook-searchresults a,
.content a:link,
a:visited,
a > .hljs {
    color: var(--links);
}

/*
    mdbook-body-container is necessary because mobile browsers don't seem to like
    overflow-x on the body tag when there is a <meta name="viewport"> tag.
*/
#mdbook-body-container {
    position: relative;

    width: 100%;
    height: 100vh;

    overflow: hidden;
}

/* Menu Bar */

/* ========================================================= */
/* Global Full-Width Menu Bar                                */
/* ========================================================= */

#mdbook-menu-bar {
    position: fixed;

    top: 0;
    left: 0;
    right: 0;

    width: 100%;
    height: var(--menu-bar-height);

    z-index: 1100;

    display: flex;
    align-items: center;
    flex-wrap: nowrap;

    box-sizing: border-box;

    margin: 0;
    background-color: var(--bg);
    border-bottom: 1px solid var(--table-border-color);
}

#mdbook-menu-bar.bordered {
    border-block-end-color:
            var(--table-border-color);
}
/*--------------------------------------------------------------------------------------------------------------------*/
#mdbook-menu-bar.bordered {
    border-block-end-color: var(--table-border-color);
}
#mdbook-menu-bar .fa-svg, #mdbook-menu-bar .icon-button {
    position: relative;
    padding: 0 8px;
    z-index: 10;
    line-height: var(--menu-bar-height);
    cursor: pointer;
    transition: color 0.5s;
}
@media only screen and (max-width: 420px) {
    #mdbook-menu-bar .fa-svg, #mdbook-menu-bar .icon-button {
        padding: 0 5px;
    }
}

.icon-button {
    border: none;
    background: none;
    padding: 0;
    color: inherit;
}
.icon-button .fa-svg {
    margin: 0;
}

.right-buttons {
    margin: 0 15px;
}
.right-buttons a {
    text-decoration: none;
}

.left-buttons {
    display: flex;
    margin: 0;
    padding-left: var(--page-padding);
}

.left-buttons .icon-button {
    font-size: 22px;
}

html:not(.js) .left-buttons button {
    display: none;
}

.menu-title {
    display: inline-block;
    font-weight: 200;
    font-size: 2.4rem;
    line-height: var(--menu-bar-height);
    text-align: center;
    margin: 0;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.menu-title {
    cursor: pointer;
}

.menu-bar,
.menu-bar:visited,
.nav-chapters,
.nav-chapters:visited,
.mobile-nav-chapters,
.mobile-nav-chapters:visited,
.menu-bar .icon-button,
.menu-bar a .fa-svg {
    color: var(--icons);
}

.menu-bar .fa-svg:hover,
.menu-bar .icon-button:hover,
.nav-chapters:hover,
.mobile-nav-chapters .fa-svg:hover {
    color: var(--icons-hover);
}

/* Nav Icons */

.nav-chapters {
    display: none !important;
    font-size: 2.2em;
    text-align: center;
    text-decoration: none;

    position: fixed;
    top: 0;
    bottom: 0;
    margin: 0;
    max-width: 100px;
    min-width: 50px;

    justify-content: center;
    align-content: center;
    flex-direction: column;

    transition: color 0.5s, background-color 0.5s;
}

.nav-chapters:hover {
    text-decoration: none;
    background-color: var(--theme-hover);
    transition: background-color 0.15s, color 0.15s;
}

.nav-chapters.previous {
    /* Ensure that the previous arrow does not overlap the resize indicator. */
    margin-inline-start: var(--sidebar-resize-indicator-width);
}

.nav-wrapper {
    margin-block-start: 50px;
    display: none;
}

.mobile-nav-chapters {
    font-size: 2.5em;
    text-align: center;
    text-decoration: none;
    width: 90px;
    border-radius: 5px;
    background-color: var(--sidebar-bg);
}

/* Only Firefox supports flow-relative values */
.previous { float: left; }
[dir=rtl] .previous { float: right; }

/* Only Firefox supports flow-relative values */
.next {
    float: right;
    right: var(--page-padding);
}
[dir=rtl] .next {
    float: left;
    right: unset;
    left: var(--page-padding);
}

@media (min-width: 900px) {
    #mdbook-sidebar-toggle {
        display: none;
    }
}

@media only screen and (max-width: 1080px) {
    .nav-wide-wrapper { display: none; }
    .nav-wrapper { display: block; }
}

/* sidebar-visible */
@media only screen and (max-width: 1380px) {
    #mdbook-sidebar-toggle-anchor:checked ~ .page-wrapper .nav-wide-wrapper { display: none; }
    #mdbook-sidebar-toggle-anchor:checked ~ .page-wrapper .nav-wrapper { display: block; }
}

/* Inline code */

:not(pre) > .hljs {
    display: inline;
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

:not(pre):not(a) > .hljs {
    color: var(--inline-code-color);
    overflow-x: initial;
}

a:hover > .hljs {
    text-decoration: underline;
}

pre {
    position: relative;
}
pre > .buttons {
    position: absolute;
    z-index: 100;
    right: 0px;
    top: 2px;
    margin: 0px;
    padding: 2px 0px;

    color: var(--sidebar-fg);
    cursor: pointer;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0.1s linear, opacity 0.1s linear;
}
pre:hover > .buttons {
    visibility: visible;
    opacity: 1
}
pre > .buttons :hover {
    color: var(--sidebar-active);
    border-color: var(--icons-hover);
    background-color: var(--theme-hover);
}
pre > .buttons button {
    cursor: inherit;
    margin: 0px 5px;
    padding: 2px 3px 0px 4px;
    font-size: 23px;

    border-style: solid;
    border-width: 1px;
    border-radius: 4px;
    border-color: var(--icons);
    background-color: var(--theme-popup-bg);
    transition: 100ms;
    transition-property: color,border-color,background-color;
    color: var(--icons);
}

pre > .buttons button.clip-button {
    padding: 2px 4px 0px 6px;
}
pre > .buttons button.clip-button::before {
    /* clipboard image from octicons (https://github.com/primer/octicons/tree/v2.0.0) MIT license
     */
    content: url('data:image/svg+xml,<svg width="21" height="20" viewBox="0 0 24 25" \
xmlns="http://www.w3.org/2000/svg" aria-label="Copy to clipboard">\
<path d="M18 20h2v3c0 1-1 2-2 2H2c-.998 0-2-1-2-2V5c0-.911.755-1.667 1.667-1.667h5A3.323 3.323 0 \
0110 0a3.323 3.323 0 013.333 3.333h5C19.245 3.333 20 4.09 20 5v8.333h-2V9H2v14h16v-3zM3 \
7h14c0-.911-.793-1.667-1.75-1.667H13.5c-.957 0-1.75-.755-1.75-1.666C11.75 2.755 10.957 2 10 \
2s-1.75.755-1.75 1.667c0 .911-.793 1.666-1.75 1.666H4.75C3.793 5.333 3 6.09 3 7z"/>\
<path d="M4 19h6v2H4zM12 11H4v2h8zM4 17h4v-2H4zM15 15v-3l-4.5 4.5L15 21v-3l8.027-.032L23 15z"/>\
</svg>');
    filter: var(--copy-button-filter);
}
pre > .buttons button.clip-button:hover::before {
    filter: var(--copy-button-filter-hover);
}

@media (pointer: coarse) {
    pre > .buttons button {
        /* On mobile, make it easier to tap buttons. */
        padding: 0.3rem 1rem;
    }

    .sidebar-resize-indicator {
        /* Hide resize indicator on devices with limited accuracy */
        display: none;
    }
}
pre > code {
    display: block;
    padding: 1rem;
}

/* FIXME: ACE editors overlap their buttons because ACE does absolute
   positioning within the code block which breaks padding. The only solution I
   can think of is to move the padding to the outer pre tag (or insert a div
   wrapper), but that would require fixing a whole bunch of CSS rules.
*/
.hljs.ace_editor {
  padding: 0rem 0rem;
}

pre > .result {
    margin-block-start: 10px;
}

/* Search */

#mdbook-searchresults a {
    text-decoration: none;
}

mark {
    border-radius: 2px;
    padding-block-start: 0;
    padding-block-end: 1px;
    padding-inline-start: 3px;
    padding-inline-end: 3px;
    margin-block-start: 0;
    margin-block-end: -1px;
    margin-inline-start: -3px;
    margin-inline-end: -3px;
    background-color: var(--search-mark-bg);
    transition: background-color 300ms linear;
    cursor: pointer;
}

mark.fade-out {
    background-color: rgba(0,0,0,0) !important;
    cursor: auto;
}

.searchbar-outer {
    margin-inline-start: auto;
    margin-inline-end: auto;
    max-width: var(--content-max-width);
}

.search-wrapper {
    position: relative;
}
/*==========================================================================*/

#mdbook-searchbar {
    width: 100%;
    margin-block-start: var(--searchbar-margin-block-start);
    margin-block-end: 0;
    margin-inline-start: auto;
    margin-inline-end: auto;
    padding: 10px 16px;
    transition: box-shadow 300ms ease-in-out;
    border: 1px solid var(--searchbar-border-color);
    border-radius: 3px;
    background-color: var(--searchbar-bg);
    color: var(--searchbar-fg);
    outline: none;
}

#mdbook-searchbar:focus,
#mdbook-searchbar.active {
    outline: none;
    box-shadow: none;

    border-color: var(--searchbar-focus-color);
}

.searchresults-header {
    font-weight: bold;
    font-size: 1em;
    padding-block-start: 18px;
    padding-block-end: 0;
    padding-inline-start: 5px;
    padding-inline-end: 0;
    color: var(--searchresults-header-fg);
}

.searchresults-outer {
    margin-inline-start: auto;
    margin-inline-end: auto;
    max-width: var(--content-max-width);
    border-block-end: 1px dashed var(--searchresults-border-color);
}

ul#mdbook-searchresults {
    list-style: none;
    padding-inline-start: 20px;
}
ul#mdbook-searchresults li {
    margin: 10px 0px;
    padding: 2px;
    border-radius: 2px;
}
ul#mdbook-searchresults li.focus {
    background-color: var(--searchresults-li-bg);
}
ul#mdbook-searchresults span.teaser {
    display: block;
    clear: both;
    margin-block-start: 5px;
    margin-block-end: 0;
    margin-inline-start: 20px;
    margin-inline-end: 0;
    font-size: 0.8em;
}
ul#mdbook-searchresults span.teaser em {
    font-weight: bold;
    font-style: normal;
}

/* Sidebar */

.sidebar {
    position: fixed;
    left: 0;
    top: var(--menu-bar-height);
    bottom: 0;
    margin-left: 0;
    width: var(--sidebar-width);
    font-size: 1.0em;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-fg);
    z-index: 1000;
}

.sidebar-iframe-inner {
    --padding: 10px;

    background-color: var(--sidebar-bg);
    padding: var(--padding);
    margin: 0;
    font-size: 1.4rem;
    color: var(--sidebar-fg);
    min-height: calc(100vh - var(--padding) * 2);
}
.sidebar-iframe-outer {
    border: none;
    height: 100%;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}
[dir=rtl] .sidebar { left: unset; right: 0; }
.sidebar-resizing {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
html:not(.sidebar-resizing) .sidebar {
    transition: transform 0.3s; /* Animation: slide away */
}
.sidebar code {
    line-height: 2em;
}
.sidebar .sidebar-scrollbox {
    overflow-y: auto;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 10px;
}
.sidebar .sidebar-resize-handle {
    position: absolute;
    cursor: col-resize;
    width: 0;
    right: calc(var(--sidebar-resize-indicator-width) * -1);
    top: 0;
    bottom: 0;
    display: flex;
    align-items: center;
}

.sidebar-resize-handle .sidebar-resize-indicator {
    width: 100%;
    height: 16px;
    color: var(--icons);
    margin-inline-start: var(--sidebar-resize-indicator-space);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.sidebar-resize-handle .sidebar-resize-indicator::before {
    content: "";
    width: 2px;
    height: 12px;
    border-left: dotted 2px currentColor;
}
.sidebar-resize-handle .sidebar-resize-indicator::after {
    content: "";
    width: 2px;
    height: 16px;
    border-left: dotted 2px currentColor;
}

[dir=rtl] .sidebar .sidebar-resize-handle {
    left: calc(var(--sidebar-resize-indicator-width) * -1);
    right: unset;
}
.js .sidebar .sidebar-resize-handle {
    cursor: col-resize;
    width: calc(var(--sidebar-resize-indicator-width) - var(--sidebar-resize-indicator-space));
}

html:not(.js) .sidebar-resize-handle {
    display: none;
}

/* sidebar-hidden */
.sidebar::-webkit-scrollbar {
    background: var(--sidebar-bg);
}
.sidebar::-webkit-scrollbar-thumb {
    background: var(--scrollbar);
}

/* ========================================================= */
/* Desktop Documentation Layout                              */
/* ========================================================= */

@media (min-width: 900px) {

    .sidebar {
        transform: none !important;
    }

    .page-wrapper {
        left:
                calc(
                        var(--sidebar-width) +
                        var(--sidebar-resize-indicator-width)
                );
    }

    #mdbook-sidebar-toggle {
        display: none;
    }
}
/* ========================================================= */
/* Mobile Documentation Layout                               */
/* ========================================================= */

@media (max-width: 899px) {

    .page-wrapper {
        left: 0;
    }

    #mdbook-sidebar-toggle-anchor:not(:checked)
    ~ .sidebar {
        transform:
                translateX(
                        calc(
                                0px -
                                var(--sidebar-width) -
                                var(--sidebar-resize-indicator-width)
                        )
                );
    }

    #mdbook-sidebar-toggle-anchor:checked
    ~ .sidebar {
        transform: translateX(0);
    }
}
/*===========================================================*/
.chapter {
    list-style: none outside none;
    padding-inline-start: 0;
    line-height: 2.2em;
    margin-left: 10px;
    /*margin-top: -10px;*/
}

.chapter li {
    color: var(--sidebar-non-existant);
}

/* This is a span wrapping the chapter link and the fold chevron. */
.chapter-link-wrapper {
    /* Used to position the chevron to the right, allowing the text to wrap before it. */
    display: flex;
}

.chapter li a {
    /* Remove underlines. */
    text-decoration: none;
    color: var(--sidebar-fg);
}

.chapter li a:hover {
    color: var(--sidebar-active);
}
/*==================================================================*/
.chapter li a.active {
    color: var(--sidebar-active);
    background-color: var(--sidebar-active-bg);

    border-radius: 6px;

    padding: 4px 8px;

    display: block;
}

.chapter a.current-header {
    color: var(--sidebar-active);
    background-color: var(--sidebar-active-bg);

    border-radius: 6px;

    padding: 4px 8px;

    display: block;

    font-weight: 500;
}
/*==================================================================*/
/* This is the toggle chevron. */
.chapter-fold-toggle {
    cursor: pointer;
    /* Positions the chevron to the side. */
    margin-inline-start: auto;
    padding: 0 10px;
    user-select: none;
    opacity: 0.68;
}

.chapter-fold-toggle div {
    transition: transform 0.5s;
}

/* collapse the section */
.chapter li:not(.expanded) > ol {
    display: none;
}

.chapter li.chapter-item {
    font-size: 1.4rem;
    margin-left: 12px;
    line-height: 1.5em;
    margin-block-start: 0.6em;
}

.chapter li.header-item {
    /* Make sure there is plenty of spacing between sections so they don't blend in
       with each other. */
    margin-block-end: 0.5em;
    /* Avoid too much spacing between lines when section heading word wraps so that
       it can be distinguished between successive headings. */
    line-height: 1.5em;
}

/* When expanded, rotate the chevron to point down. */
.chapter li.expanded > span > .chapter-fold-toggle div {
    transform: rotate(90deg);
}
/*==================================================================*/

/*.on-this-page {*/
/*    margin-left: 22px;*/
/*    !*border-inline-start: 1px solid var(--sidebar-header-border-color);*!*/
/*    padding-left: 12px;*/
/*}*/

.on-this-page > ol {
    padding-left: 0;
}

.chapter .section {
    list-style: none outside none;
    margin-inline-start: 10px;
    padding-inline-start: 14px;
    border-inline-start: 1px solid var(--sidebar-spacer);
    line-height: 1.9em;
    margin-top: 10px;
    margin-bottom: 10px;
}

/*---------------------------------------------------------------------------*/

/* Horizontal line in chapter list. */
.spacer {
    width: 100%;
    height: 3px;
    margin: 5px 0px;
}
.chapter .spacer {
    background-color: var(--sidebar-spacer);
}

/* On touch devices, add more vertical spacing to make it easier to tap links. */
@media (-moz-touch-enabled: 1), (pointer: coarse) {
    .chapter li a { padding: 5px 0; }
    .spacer { margin: 10px 0; }
}

.section {
    list-style: none outside none;
    padding-inline-start: 20px;
    line-height: 1.9em;
}

/* Theme Menu Popup */

.theme-popup {
    position: absolute;
    left: 10px;
    top: var(--menu-bar-height);
    z-index: 1000;
    border-radius: 4px;
    font-size: 0.7em;
    color: var(--fg);
    background: var(--theme-popup-bg);
    border: 1px solid var(--theme-popup-border);
    margin: 0;
    padding: 0;
    list-style: none;
    display: none;
    /* Don't let the children's background extend past the rounded corners. */
    overflow: hidden;
}
[dir=rtl] .theme-popup { left: unset;  right: 10px; }
.theme-popup .default {
    color: var(--icons);
}
.theme-popup .theme {
    width: 100%;
    border: 0;
    margin: 0;
    padding: 2px 20px;
    line-height: 25px;
    white-space: nowrap;
    text-align: start;
    cursor: pointer;
    color: inherit;
    background: inherit;
    font-size: inherit;
}
.theme-popup .theme:hover {
    background-color: var(--theme-hover);
}

.theme-selected::before {
    display: inline-block;
    content: "✓";
    margin-inline-start: -14px;
    width: 14px;
}

/* The container for the help popup that covers the whole window. */
#mdbook-help-container {
    /* Position and size for the whole window. */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* This uses flex layout (which is set in book.js), and centers the popup
       in the window.*/
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    /* Dim out the book while the popup is visible. */
    background: var(--overlay-bg);
}

/* The popup help box. */
#mdbook-help-popup {
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
    min-width: 300px;
    max-width: 500px;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg);
    color: var(--fg);
    border-width: 1px;
    border-color: var(--theme-popup-border);
    border-style: solid;
    border-radius: 8px;
    padding: 10px;
}

.mdbook-help-title {
    text-align: center;
    /* mdbook's margin for h2 is way too large. */
    margin: 10px;
}