@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Serif:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&display=swap");

@font-face {
    font-family: "iA Writer Quattro V";
    src: url("../assets/iAWriterQuattroV.ttf") format("truetype");
    font-style: normal;
    font-weight: 100 900;
}

/* Light themes -> white/black */
html.light,
html.rust {
    --bg: #ffffff;
    --fg: #000000;
    --menu-bar-bg: rgba(255, 255, 255, 0.55);
    --sidebar-bg: #f7f7f7;
    --sidebar-fg: #000000;
    --sidebar-active: #000000;
    --sidebar-active-bg: #e0e0e0;
    --sidebar-non-existant: #aaaaaa;
    --sidebar-spacer: #cccccc;
    --scrollbar: #cccccc;
    --icons: #000000;
    --icons-hover: #000000;
    --links: #000000;
    --links-hover: #555555;
    --link-line-decoration: #000000;
    --link-line-decoration-hover: #000000;
    --inline-code-color: #000000;
    --theme-popup-bg: #ffffff;
    --theme-popup-border: #cccccc;
    --theme-hover: #eeeeee;
    --quote-bg: #f2f2f2;
    --quote-border: #cccccc;
    --table-border-color: #cccccc;
    --headings-border-color: #e0e0e0;
    --table-header-bg: #f2f2f2;
    --table-alternate-bg: #fafafa;
    --searchbar-border-color: #cccccc;
    --searchbar-bg: #fafafa;
    --searchbar-fg: #000000;
    --searchbar-shadow-color: transparent;
    --searchresults-header-fg: #666666;
    --searchresults-border-color: #cccccc;
    --searchresults-li-bg: #fafafa;
    --search-mark-bg: #eeeeee;
    --chapter-hover-bg: #eeeeee;
    --chapter-active-fg: #000000;
    --chapter-active-border-color: #000000;
}

/* Dark themes -> black/white */
html.coal,
html.navy,
html.ayu {
    --bg: #000000;
    --fg: #ffffff;
    --menu-bar-bg: rgba(58, 58, 58, 0.2);
    --sidebar-bg: #2b2b2b;
    --sidebar-fg: #ffffff;
    --sidebar-active: #ffffff;
    --sidebar-active-bg: #454545;
    --sidebar-non-existant: #666666;
    --sidebar-spacer: #454545;
    --scrollbar: #454545;
    --icons: #ffffff;
    --icons-hover: #ffffff;
    --links: #ffffff;
    --links-hover: #cccccc;
    --link-line-decoration: #ffffff;
    --link-line-decoration-hover: #ffffff;
    --inline-code-color: #ffffff;
    --theme-popup-bg: #2b2b2b;
    --theme-popup-border: #555555;
    --theme-hover: #383838;
    --quote-bg: #2b2b2b;
    --quote-border: #555555;
    --table-border-color: #454545;
    --headings-border-color: #383838;
    --table-header-bg: #2b2b2b;
    --table-alternate-bg: #1e1e1e;
    --searchbar-border-color: #555555;
    --searchbar-bg: #1f1f1f;
    --searchbar-fg: #ffffff;
    --searchbar-shadow-color: transparent;
    --searchresults-header-fg: #bbbbbb;
    --searchresults-border-color: #555555;
    --searchresults-li-bg: #1f1f1f;
    --search-mark-bg: #454545;
    --chapter-hover-bg: #383838;
    --chapter-active-fg: #ffffff;
    --chapter-active-border-color: #ffffff;
}

html,
body,
.sidebar,
main,
pre,
code,
.hljs,
.menu-title {
    font-family:
        "iA Writer Quattro V",
        -apple-system,
        "Segoe UI",
        sans-serif;
}

body {
    font-weight: 300;
}

strong,
b {
    font-weight: 700;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 400;
}
.menu-title,
.nav-chapters,
#sidebar-toggle {
    font-weight: 700;
}

/* Headings in the content use IBM Plex Serif (the sidebar stays on iA Writer) */
.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
    font-family: "IBM Plex Serif", serif;
}

/* Links are always underlined */
.content a {
    text-decoration: underline;
}

/* Chapter titles in the sidebar are bold */
.chapter > li > .chapter-link-wrapper > a {
    font-weight: 700;
}

/* Chapter content (sub-chapter) titles in the sidebar are not bold */
.chapter > li > ul.subchapter > li > .chapter-link-wrapper > a {
    font-weight: 400;
}

/* All sidebar items: uniform indent and full-width layout */
.chapter li a {
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    padding-inline: 16px;
}

/* Current selected item: gray background spanning the width, with edge margins */
.chapter li a.active {
    position: relative;
    isolation: isolate;
}
.chapter li a.active::before {
    content: "";
    position: absolute;
    inset: 0 8px;
    background: var(--sidebar-active-bg);
    border-radius: 0;
    z-index: -1;
}

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

/* Hide the chapter numbers in the sidebar */
.chapter strong[aria-hidden="true"] {
    display: none;
}

/* Hide the per-page heading sub-content ("On this page") in the sidebar */
.on-this-page {
    display: none;
}

/* Hide the print button in the menu bar */
a[href="print.html"] {
    display: none;
}

/* Title bar spans the full width, with the sidebar below it */
#mdbook-menu-bar {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    margin: 0;
    height: var(--menu-bar-height);
    z-index: 102;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    padding: 0 15px;
    gap: 12px;
    box-sizing: border-box;
    background-color: var(--menu-bar-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-block-end: 1px solid var(--sidebar-spacer);
}
html.coal #mdbook-menu-bar,
html.navy #mdbook-menu-bar,
html.ayu #mdbook-menu-bar {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
/* Hide the default title immediately (no flash); it is replaced by the search bar */
.menu-title {
    display: none !important;
}
#mdbook-menu-bar .left-buttons {
    grid-column: 1;
    display: flex;
    align-items: center;
    margin: 0;
}
#mdbook-menu-bar .right-buttons {
    grid-column: 3;
    display: flex;
    align-items: center;
}

/* JereIDE home icon */
#mdbook-menu-bar .home-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 8px 0 4px;
    text-decoration: none;
    flex-shrink: 0;
}
#mdbook-menu-bar .home-link img {
    width: 26px;
    height: 26px;
}

/* Hide the toggle buttons (sidebar & search) since they are not used */
#mdbook-sidebar-toggle,
#mdbook-search-toggle {
    display: none !important;
}

/* Replace the theme dropdown with a flat Auto/Dark/Light slider */
#mdbook-theme-toggle,
#mdbook-theme-list {
    display: none !important;
}
.theme-slider {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 216px;
    height: 26px;
    margin: 0 8px;
    border: 1px solid var(--theme-popup-border);
    border-radius: 0;
    background-color: var(--theme-hover);
}
.theme-slider-thumb {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 4px;
    width: calc(33.333% - 8px);
    background-color: var(--fg);
    transition: transform 0.25s ease;
}
.theme-slider[data-theme="dark"] .theme-slider-thumb {
    transform: translateX(calc(100% + 8px));
}
.theme-slider[data-theme="light"] .theme-slider-thumb {
    transform: translateX(calc(200% + 16px));
}
.theme-slider-opt {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 0;
    background: none;
    padding: 0;
    font-family: "iA Writer Quattro V", sans-serif;
    font-size: 12px;
    line-height: 1;
    color: var(--fg);
    cursor: pointer;
}
.theme-slider-opt[data-active="true"] {
    color: var(--bg);
}

/* Search bar centered over the title bar (positioned by CSS so it appears with the page) */
#mdbook-search-wrapper {
    display: block !important;
    position: fixed;
    top: calc((var(--menu-bar-height) - 36px) / 2);
    left: 50%;
    transform: translateX(-50%);
    width: min(460px, calc(100vw - 260px));
    z-index: 105;
}
.searchbar-outer {
    max-width: 460px;
    margin: 0 auto;
    padding: 0;
}
.search-wrapper {
    display: flex;
    align-items: center;
}
#mdbook-searchbar {
    width: 100%;
    margin: 0;
    padding: 7px 12px 7px 32px;
    border: 1px solid var(--searchbar-border-color);
    border-radius: 0;
    background-color: var(--searchbar-bg);
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23666' d='M416 208c0 45.9-14.9 88.3-40 122.7L502.6 457.4c12.5 12.5 12.5 32.8 0 45.3s-32.8 12.5-45.3 0L330.7 376c-34.4 25.2-76.8 40-122.7 40C93.1 416 0 322.9 0 208S93.1 0 208 0S416 93.1 416 208zM208 352c79.5 0 144-64.5 144-144s-64.5-144-144-144S64 128.5 64 208s64.5 144 144 144z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 10px center;
    background-size: 14px 14px;
    color: var(--searchbar-fg);
    font-family: "iA Writer Quattro V", sans-serif;
    font-size: 14px;
    outline: none;
    box-shadow: none;
}
#mdbook-searchbar:focus,
#mdbook-searchbar.active {
    box-shadow: none;
    border-color: var(--searchbar-border-color);
}

/* Search results popup (moved to <body> by custom.js, positioned fixed so it can't be clipped) */
.searchresults-outer {
    position: fixed !important;
    top: calc(var(--menu-bar-height) + 8px);
    left: 50%;
    transform: translateX(-50%);
    width: min(520px, calc(100vw - 40px));
    max-height: 70vh;
    overflow-y: auto;
    margin: 0;
    background-color: var(--bg);
    border: 1px solid var(--searchbar-border-color);
    border-radius: 0;
    box-shadow: none;
    padding: 6px 12px 12px;
    z-index: 300;
}
.searchresults-header {
    padding-block-start: 10px;
    padding-inline-end: 30px;
    padding-block-end: 6px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--searchresults-header-fg);
    border-block-end: 1px solid var(--headings-border-color);
}
.searchresults-outer ul#mdbook-searchresults {
    padding-inline-start: 0;
}
.searchresults-outer ul#mdbook-searchresults li {
    margin: 0;
    padding: 10px 8px;
    border-radius: 0;
    border-block-end: 1px solid var(--headings-border-color);
}
.searchresults-outer ul#mdbook-searchresults li:last-child {
    border-block-end: none;
}
.searchresults-outer ul#mdbook-searchresults li.focus {
    background-color: var(--theme-hover);
}
.searchresults-outer ul#mdbook-searchresults a {
    color: var(--links);
    text-decoration: none;
}
.searchresults-outer ul#mdbook-searchresults a:hover {
    color: var(--links-hover);
}
.searchresults-outer ul#mdbook-searchresults span.teaser {
    color: var(--searchresults-header-fg);
    margin-inline-start: 0;
}
.searchresults-close {
    position: absolute;
    top: 6px;
    right: 10px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    color: var(--icons);
    padding: 4px;
}
.searchresults-close:hover {
    color: var(--icons-hover);
}

.sidebar {
    top: var(--menu-bar-height);
    bottom: 0;
}

/* Keep content clear of the fixed title bar */
#mdbook-menu-bar-hover-placeholder {
    display: none;
}

/* Target multiple elements with high specificity to ensure padding is applied */
html body .page-wrapper > .page > .content,
html body .page-wrapper > .page,
.content {
    padding-top: 15px !important;
    margin-top: 0 !important;
}

/* Fallback for page-wrapper itself */
.page-wrapper {
    padding-top: 15px !important;
}

/* Keep anchored headings from hiding under the fixed title bar */
html,
body {
    scroll-padding-top: 15px !important;
}

code,
pre {
    font-size: 1em;
}

/* Hide mdBook's native alert blockquote until JS converts it to the site style */
.content blockquote.blockquote-tag {
    display: none;
}

/* Markdown alerts, rendered the same way as the releases page */
.markdown-alert {
    border-left: 4px solid var(--quote-border);
    padding: 12px 16px;
    margin: 16px 0;
    background: var(--quote-bg);
}
.markdown-alert-title {
    font-weight: bold;
    margin: 0 0 4px 0;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.markdown-alert :first-child {
    margin-top: 0;
}
.markdown-alert :last-child {
    margin-bottom: 0;
}
.markdown-alert-note {
    border-left-color: #0969da;
}
.markdown-alert-note .markdown-alert-title {
    color: #0969da;
}
.markdown-alert-tip {
    border-left-color: #1a7f37;
}
.markdown-alert-tip .markdown-alert-title {
    color: #1a7f37;
}
.markdown-alert-important {
    border-left-color: #8250df;
}
.markdown-alert-important .markdown-alert-title {
    color: #8250df;
}
.markdown-alert-warning {
    border-left-color: #bf8700;
}
.markdown-alert-warning .markdown-alert-title {
    color: #bf8700;
}
.markdown-alert-caution {
    border-left-color: #cf222e;
}
.markdown-alert-caution .markdown-alert-title {
    color: #cf222e;
}