/* === Custom Properties === */
:root {
    --fg: #1a1a1a;
    --bg: #fafafa;
    --fg-muted: #666;
    --border: #ddd;
    --link: #1a6baa;
    --link-hover: #0d4a7a;
    --code-bg: #f0f0f0;
    --pre-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
    :root {
        --fg: #e0e0e0;
        --bg: #1a1a1a;
        --fg-muted: #999;
        --border: #333;
        --link: #6db3f2;
        --link-hover: #9dcbf5;
        --code-bg: #2a2a2a;
        --pre-bg: #222;
    }
}

/* === Reset === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* === Base === */
html {
    font: 18px/1.7 ui-serif, Georgia, serif;
    color: var(--fg);
    background: var(--bg);
    -webkit-text-size-adjust: 100%;
}

body {
    max-width: 80ch;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* === Links === */
a {
    color: var(--link);
    text-decoration: none;
}

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

/* === Header === */
header {
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
}

.site-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--fg);
}

.site-title:hover {
    color: var(--fg);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

/* === Footer === */
footer {
    margin-top: 4rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    color: var(--fg-muted);
    font-size: 0.85rem;
}

footer a {
    color: var(--fg-muted);
}

/* === Headings === */
h1, h2, h3, h4 {
    line-height: 1.3;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

h1 { font-size: 1.8rem; margin-top: 0; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }

/* === Post list (index) === */
.year-group {
    margin-bottom: 2rem;
}

.year-group h2 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    color: var(--fg-muted);
    font-weight: 400;
}

.post-list {
    list-style: none;
}

.post-list li {
    display: flex;
    gap: 1rem;
    align-items: baseline;
    padding: 0.15rem 0;
}

.post-list time {
    color: var(--fg-muted);
    font-size: 0.9rem;
    flex-shrink: 0;
    min-width: 5.5em;
}

/* === Post === */
.post-meta {
    color: var(--fg-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.post-body {
    margin-bottom: 2rem;
}

.post-body p,
.post-body ul,
.post-body ol,
.post-body blockquote {
    margin-bottom: 1em;
}

.post-body ul,
.post-body ol {
    padding-left: 1.5em;
}

.post-body blockquote {
    border-left: 3px solid var(--border);
    padding-left: 1em;
    color: var(--fg-muted);
}

/* === Code === */
code {
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, monospace;
    font-size: 0.88em;
    background: var(--code-bg);
    padding: 0.15em 0.35em;
    border-radius: 3px;
}

pre {
    background: var(--pre-bg);
    padding: 1rem;
    overflow-x: auto;
    border-radius: 4px;
    margin-bottom: 1em;
    max-width: calc(80ch + 4rem);
    width: calc(100% + 2rem);
    margin-left: -1rem;
}

pre code {
    background: none;
    padding: 0;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* === Tables === */
table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 1em;
}

th, td {
    border: 1px solid var(--border);
    padding: 0.5em 0.75em;
    text-align: left;
}

th {
    font-weight: 600;
}

/* === Tags === */
.tag-list {
    list-style: none;
    columns: 2;
}

.tag-list li {
    padding: 0.15rem 0;
}

/* === Back link === */
.back-link {
    margin-top: 2rem;
    font-size: 0.9rem;
}

/* === Footnotes === */
.footnotes {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--fg-muted);
}


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td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
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.highlight { background: #f8f8f8; }
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.highlight .se { color: #AA5D1F; font-weight: bold } /* Literal.String.Escape */
.highlight .sh { color: #BA2121 } /* Literal.String.Heredoc */
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td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
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span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #49483e }
.highlight { background: #272822; color: #F8F8F2 }
.highlight .c { color: #959077 } /* Comment */
.highlight .err { color: #ED007E; background-color: #1E0010 } /* Error */
.highlight .esc { color: #F8F8F2 } /* Escape */
.highlight .g { color: #F8F8F2 } /* Generic */
.highlight .k { color: #66D9EF } /* Keyword */
.highlight .l { color: #AE81FF } /* Literal */
.highlight .n { color: #F8F8F2 } /* Name */
.highlight .o { color: #FF4689 } /* Operator */
.highlight .x { color: #F8F8F2 } /* Other */
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.highlight .cm { color: #959077 } /* Comment.Multiline */
.highlight .cp { color: #959077 } /* Comment.Preproc */
.highlight .cpf { color: #959077 } /* Comment.PreprocFile */
.highlight .c1 { color: #959077 } /* Comment.Single */
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