:root {
    --fg: #222;
    --bg: #fff;
    --border: #ddd;
    --muted: #777;
    --link: #1769aa;
    --code-bg: #eaeef2;
    --hljs-comment: #59636e;
    --hljs-keyword: #cf222e;
    --hljs-string: #0a3069;
    --hljs-title: #8250df;
    --hljs-type: #953800;
    color-scheme: light;
}

:root.dark {
    --fg: #e6edf3;
    --bg: #0d1117;
    --border: #30363d;
    --muted: #8b949e;
    --link: #4493f8;
    --code-bg: #21262d;
    --hljs-comment: #8b949e;
    --hljs-keyword: #ff7b72;
    --hljs-string: #a5d6ff;
    --hljs-title: #d2a8ff;
    --hljs-type: #ffa657;
    color-scheme: dark;
}

body {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 80px);
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
    font: 17px/1.6 system-ui, sans-serif;
    color: var(--fg);
    background: var(--bg);
}

main {
    flex: 1;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

header .tagline {
    color: var(--muted);
    font-size: 0.85em;
    font-weight: normal;
    font-style: italic;
}

.header-actions {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.theme-toggle {
    width: 4.5em;
    padding: 2px 0;
    font: inherit;
    font-size: 0.8em;
    text-align: center;
    color: var(--muted);
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
}

.theme-toggle:hover {
    color: var(--fg);
    border-color: var(--fg);
}

header a {
    font-weight: bold;
    text-decoration: none;
}

footer {
    margin-top: 48px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.9em;
}

footer a {
    font-weight: bold;
    text-decoration: none;
}

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

img {
    max-width: 100%;
}

video {
    max-width: 100%;
    border: 1px solid var(--border);
}

pre {
    overflow-x: auto;
    padding: 16px;
    background: var(--code-bg);
    border-radius: 6px;
}

code {
    font-family: ui-monospace, monospace;
}

:not(pre) > code {
    padding: 2px 6px;
    background: var(--code-bg);
    border-radius: 6px;
}

details {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    margin: 16px 0;
}

iframe {
    display: block;
    width: 100%;
    border: 0;
    margin: 24px 0;
}

time {
    color: var(--muted);
    font-size: 0.85em;
}

li time {
    display: inline-block;
    min-width: 110px;
    font-variant-numeric: tabular-nums;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    position: relative;
}

.header-anchor {
    position: absolute;
    right: calc(100% - 1ch);
    padding: 0 calc(1ch + 0.4em) 0 1.5em;
    color: var(--muted);
    text-decoration: none;
    opacity: 0;
}

h1:hover .header-anchor,
h2:hover .header-anchor,
h3:hover .header-anchor,
h4:hover .header-anchor,
h5:hover .header-anchor,
h6:hover .header-anchor,
.header-anchor:focus {
    opacity: 1;
}

.hljs-comment {
    color: var(--hljs-comment);
    font-style: italic;
}

.hljs-keyword {
    color: var(--hljs-keyword);
}

.hljs-string {
    color: var(--hljs-string);
}

.hljs-title {
    color: var(--hljs-title);
}

.hljs-type,
.hljs-meta {
    color: var(--hljs-type);
}