:root {
  --ink: #1b1b1f;
  --muted: #6b6b73;
  --faint: #9b9ba3;
  --accent: #0b5cc4;
  --rule: #e8e8ec;
  --code-bg: #f6f7f9;
  --code-ink: #24292f;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  line-height: 1.7;
  max-width: 720px;
  margin: 60px auto;
  padding: 0 24px;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 40px;
  font-size: 15px;
}

.topbar .home {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  font-weight: 600;
  color: var(--ink);
}

.topbar nav a {
  color: var(--muted);
  margin-left: 18px;
}

h1 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 0 10px;
}

h2 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.005em;
  margin: 40px 0 12px;
}

h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 28px 0 8px;
}

p {
  margin: 0 0 16px;
}

ul, ol {
  padding-left: 22px;
  margin: 0 0 16px;
}

li {
  margin-bottom: 9px;
}

li::marker {
  color: #c7c7cf;
}

.byline {
  color: var(--faint);
  font-size: 15px;
  margin: 0 0 8px;
}

.lede {
  color: var(--muted);
  font-size: 18.5px;
  line-height: 1.6;
  margin: 0 0 30px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--rule);
}

code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 14.5px;
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 1.5px 5px;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 18px;
  line-height: 1.55;
}

pre code {
  background: none;
  padding: 0;
  font-size: 14px;
  color: var(--code-ink);
}

/* lightweight, dependency-free syntax tokens (GitHub-light palette) */
.tok-kw { color: #cf222e; }
.tok-str { color: #0a3069; }
.tok-com { color: #6e7781; font-style: italic; }
.tok-fn { color: #8250df; }
.tok-num { color: #0550ae; }

blockquote {
  margin: 0 0 18px;
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--rule);
  color: var(--muted);
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 15px;
  margin: 0 0 20px;
}

th, td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
}

th {
  font-weight: 600;
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

td.num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 36px 0;
}

.callout {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 0 0 18px;
  font-size: 15.5px;
}

.callout strong {
  color: var(--ink);
}

.post-list {
  list-style: none;
  padding-left: 0;
}

.post-list > li {
  margin-bottom: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--rule);
}

.post-list .title {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  font-size: 20px;
  font-weight: 600;
}

.post-list .date {
  color: var(--faint);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  margin-top: 3px;
}

.post-list .summary {
  color: var(--muted);
  font-size: 16px;
  margin-top: 6px;
}

footer {
  margin-top: 56px;
  color: var(--faint);
  font-size: 13px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}

footer a {
  color: var(--faint);
}

@media (max-width: 540px) {
  body {
    margin: 40px auto;
    font-size: 16px;
  }

  h1 {
    font-size: 27px;
  }

  h2 {
    font-size: 20px;
  }
}