:root {
    --bg: #2b2b2b;
    --bg-elev: #353535;
    --text: #f5f5f5;
    --muted: #c6c6c6;
    --line: #4a4a4a;
    --link: #8ec5ff;
    --link-hover: #b8dcff;
    --code-bg: #1f1f1f;
    --heading: #ffffff;
    --link-active: #ffffff;
    --toggle-bg: #1f1f1f;
    --toggle-text: #f5f5f5;
    --toggle-border: #4a4a4a;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
}

body {
    max-width: 160ch;
    margin: 0 auto;
    padding: 2rem 1rem 3rem;
    line-height: 1.65;
    font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.site-layout {
    display: grid;
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
}

body.sidebar-left .site-sidebar {
    grid-column: 1;
}

body.sidebar-left .site-main {
    grid-column: 2;
}

body.sidebar-right .site-layout {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 450px);
}

.site-sidebar {
    position: sticky;
    top: 1rem;
    grid-row: 1;
    align-self: start;
    max-height: calc(100vh - 2rem);
    overflow: auto;
    padding: 0.9rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--bg-elev);
}

body.sidebar-right .site-sidebar {
    grid-column: 2;
}

.site-main {
    grid-row: 1;
    min-width: 0;
}

body.sidebar-right .site-main {
    grid-column: 1;
}

.site-nav-title {
    font-weight: 700;
    margin-bottom: 0.55rem;
}

.site-nav-list {
    margin: 0;
    padding-left: 1rem;
}

.site-nav-list.root {
    padding-left: 0;
    margin-bottom: 0.8rem;
}

.site-nav-list.root>li {
    list-style: none;
}

.site-nav-dir {
    margin-top: 0.35rem;
}

.site-nav-details {
    margin: 0;
}

.site-nav-summary {
    display: block;
    color: var(--muted);
    font-size: 0.92rem;
    margin-bottom: 0.15rem;
    cursor: pointer;
    list-style: none;
}

.site-nav-summary::-webkit-details-marker {
    display: none;
}

.site-nav-summary::marker {
    content: "";
}

.site-nav-dir-label {
    display: block;
    color: var(--muted);
    font-size: 0.92rem;
    margin-bottom: 0.15rem;
}

.site-nav-dir-link {
    display: block;
    color: var(--muted);
    font-size: 0.92rem;
    margin-bottom: 0.15rem;
    text-decoration: none;
    cursor: pointer;
}

.site-nav-dir-link:hover {
    color: var(--muted);
    text-decoration: none;
}

.site-nav-details>.site-nav-list {
    margin-left: 0.4rem;
}

.site-nav-link {
    display: inline-block;
    padding: 0.05rem 0;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}

.site-nav-link:hover {
    color: inherit;
    text-decoration: none;
}

.site-nav-link.active {
    color: var(--link-active);
    font-weight: 700;
    text-decoration-thickness: 2px;
}

.theme-toggle {
    position: fixed;
    top: 0.9rem;
    right: 1rem;
    z-index: 1000;
    background: var(--toggle-bg);
    color: var(--toggle-text);
    border: 1px solid var(--toggle-border);
    border-radius: 6px;
    padding: 0.45rem 0.7rem;
    font-size: 0.85rem;
    cursor: pointer;
}

.theme-toggle:hover {
    filter: brightness(1.05);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.25;
    margin-top: 1.8rem;
    margin-bottom: 0.8rem;
    color: var(--heading);
}

p,
li,
blockquote,
td,
th {
    color: var(--text);
}

a {
    color: var(--link);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.15em;
}

a:hover {
    color: var(--link-hover);
}

hr {
    border: 0;
    height: 1px;
    background: var(--line);
    margin: 1.5rem 0;
}

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

code {
    background: var(--code-bg);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 0.1em 0.35em;
}

pre {
    overflow-x: auto;
    background: var(--code-bg);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0.9rem;
}

pre code {
    background: transparent;
    border: 0;
    padding: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th,
td {
    border: 1px solid var(--line);
    padding: 0.55rem;
    vertical-align: top;
}

th {
    background: var(--bg-elev);
}

blockquote {
    margin: 1rem 0;
    padding: 0.2rem 0.9rem;
    border-left: 4px solid var(--line);
    color: var(--muted);
}

img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 680px) {
    body {
        padding-top: 1.2rem;
    }

    .theme-toggle {
        top: 0.5rem;
        right: 0.5rem;
        font-size: 0.8rem;
        padding: 0.35rem 0.55rem;
    }
}

@media (max-width: 980px) {

    .site-layout,
    body.sidebar-right .site-layout {
        grid-template-columns: 1fr;
    }

    .site-sidebar,
    body.sidebar-right .site-sidebar {
        position: static;
        grid-row: auto;
        max-height: none;
        grid-column: auto;
    }

    .site-main,
    body.sidebar-right .site-main,
    body.sidebar-left .site-main {
        grid-row: auto;
        grid-column: auto;
    }
}