kaptan/docs/theme/layout.css

/* Static documentation layout. */
:root,
html.light,
html.rust,
html.coal,
html.navy,
html.ayu {
    --kaptan-background: #050505;
    --kaptan-surface: #101214;
    --kaptan-text: #e5e7eb;
    --kaptan-muted: #aab1b9;
    --kaptan-accent: #00ff41;
    --kaptan-border: #3a3d42;

    /* mdBook's generated content rules use these variables directly. */
    --bg: #050505;
    --fg: #e6e6e6;
    --sidebar-bg: #101214;
    --sidebar-fg: #e6e6e6;
    --sidebar-non-existant: #888888;
    --sidebar-active: #00ff41;
    --sidebar-spacer: #3a3d42;
    --links: #00ff41;
    --inline-code-color: #e6e6e6;
    --quote-bg: #101214;
    --quote-border: #3a3d42;
    --table-border-color: #3a3d42;
    --table-header-bg: #101214;
    --table-alternate-bg: #0b0d0e;
    --color-scheme: dark;
}

html,
body {
    background: var(--kaptan-background);
    color: var(--fg);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        sans-serif;
    font-size: 17px;
    line-height: 1.65;
}

* {
    animation: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    transition: none !important;
}

/* The book remains static: no help, theme picker, resizing, or search UI. */
#mdbook-help-container,
#mdbook-sidebar-toggle-anchor,
#mdbook-menu-bar-hover-placeholder,
#mdbook-sidebar-resize-handle {
    display: none !important;
}

#mdbook-sidebar {
    background: var(--kaptan-surface);
    border-right: 1px solid var(--kaptan-border);
    box-sizing: border-box;
    display: none !important;
    overflow-y: auto;
}

.sidebar-scrollbox {
    padding: 0.75rem 0;
}

.sidebar-scrollbox ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-scrollbox .chapter-item {
    margin: 0;
}

.sidebar-scrollbox .chapter-item a {
    color: var(--kaptan-text);
    display: block;
    font-size: 0.95rem;
    line-height: 1.5;
    padding: 0.4rem 1rem;
    text-decoration: none;
}

.sidebar-scrollbox .chapter-item a:hover {
    color: var(--kaptan-accent);
}

.sidebar-scrollbox .chapter-item a.active {
    background: #122015;
    border-left: 2px solid var(--kaptan-accent);
    color: var(--kaptan-accent);
    padding-left: calc(1rem - 2px);
}

.sidebar-scrollbox .section .chapter-item a {
    padding-left: 2rem;
}

.sidebar-scrollbox strong {
    color: var(--kaptan-muted);
    font-weight: 400;
}

.content {
    box-sizing: border-box;
    margin: 0 auto;
    max-width: 78ch;
    padding: 4rem 1.5rem 3rem;
}

/* mdBook offsets this for its menu placeholder; this layout hides that menu. */
.page {
    margin-block-start: 0 !important;
}

.content main {
    margin: 0;
    max-width: none;
}

h1,
h2,
h3,
h4 {
    color: var(--kaptan-text);
    font-family: inherit;
    font-weight: 700;
    line-height: 1.35;
}

h1 {
    font-size: 1.8rem;
    margin: 0 0 1.25rem;
}

h2 {
    border-bottom: 1px solid var(--kaptan-border);
    font-size: 1.3rem;
    margin: 2rem 0 0.75rem;
    padding-bottom: 0.35rem;
}

h3,
h4 {
    font-size: 1.08rem;
    margin: 1.5rem 0 0.5rem;
}

a {
    color: var(--kaptan-accent);
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

a.header {
    color: inherit;
    text-decoration: none;
}

p,
ul,
ol,
table,
blockquote,
pre {
    margin: 0 0 1rem;
}

ul,
ol {
    padding-left: 1.5rem;
}

li + li {
    margin-top: 0.2rem;
}

code,
pre,
kbd {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", monospace;
}

code {
    background: var(--kaptan-surface);
    color: var(--kaptan-text);
    padding: 0.05rem 0.25rem;
}

pre {
    background: #1d1712;
    border: 1px solid #5b4935;
    overflow-x: auto;
    padding: 0;
}

pre code {
    padding: 0;
}

/* Keep copied or highlighted commands monochrome and uniformly legible. */
pre > code.hljs,
.hljs {
    background: transparent;
    color: var(--kaptan-text);
}

.hljs *,
.hljs-addition,
.hljs-deletion,
.hljs-comment,
.hljs-quote {
    background: transparent;
    color: inherit;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th,
td {
    border: 1px solid var(--kaptan-border);
    padding: 0.35rem 0.5rem;
    text-align: left;
}

th {
    font-weight: 700;
}

blockquote {
    border-left: 2px solid var(--kaptan-border);
    color: var(--kaptan-muted);
    margin-left: 0;
    padding-left: 0.8rem;
}

.nav-wrapper,
.nav-wide-wrapper {
    display: none !important;
}

@media (min-width: 900px) {
    #mdbook-menu-bar {
        display: none !important;
    }

    #mdbook-sidebar {
        bottom: 0;
        display: block !important;
        left: 0;
        position: fixed;
        top: 0;
        transform: none !important;
        width: 17.5rem;
    }

    #mdbook-page-wrapper,
    .page-wrapper {
        margin-left: 17.5rem !important;
        transform: none !important;
    }
}

@media (max-width: 899px) {
    #mdbook-menu-bar {
        background: var(--kaptan-surface);
        border-bottom: 1px solid var(--kaptan-border);
        display: block;
        height: auto;
        min-height: 0;
        padding: 0.45rem 0.75rem;
        position: static;
    }

    #mdbook-menu-bar .left-buttons {
        display: block;
    }

    #mdbook-menu-bar .menu-title,
    #mdbook-menu-bar .right-buttons {
        display: none;
    }

    #mdbook-sidebar {
        bottom: 0;
        display: block !important;
        left: 0;
        position: fixed;
        top: 0;
        transform: translateX(-100%) !important;
        width: min(17.5rem, 85vw);
        z-index: 10;
    }

    #mdbook-sidebar-toggle-anchor:checked ~ #mdbook-sidebar {
        transform: translateX(0) !important;
    }

    #mdbook-page-wrapper,
    .page-wrapper {
        margin-left: 0 !important;
        transform: none !important;
    }
}

@media print {
    html,
    body {
        background: #ffffff;
        color: #000000;
    }

    #mdbook-menu-bar,
    #mdbook-sidebar {
        display: none !important;
    }

    a {
        color: #000000;
    }
}