:root {
  --bg: #0d1117;
  --fg: #e0e0e0;
  --muted: #8b8b8b;
  --accent: #58a6ff;
  --border: #30363d;
  --code-bg: #161b22;
  --max-w: 680px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 17px; }
body {
  font-family: 'Georgia', 'Times New Roman', serif;
  background: var(--bg); color: var(--fg);
  line-height: 1.7; padding: 3rem 1.5rem;
  max-width: var(--max-w); margin: 0 auto;
}
h1, h2, h3 {
  font-family: system-ui, -apple-system, sans-serif;
  font-weight: 600; line-height: 1.3;
  margin-top: 2.5rem; margin-bottom: 0.75rem;
}
h1 { font-size: 1.8rem; }
h2 { font-size: 1.35rem; color: var(--accent); }
h3 { font-size: 1.1rem; }
p { margin-bottom: 1.25rem; }
a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 0.2s; }
a:hover { border-bottom-color: var(--accent); }
blockquote { border-left: 3px solid var(--accent); padding: 0.5rem 1.25rem; margin: 1.5rem 0; color: var(--muted); font-style: italic; }
code { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.88rem; background: var(--code-bg); padding: 0.15em 0.4em; border-radius: 3px; }
pre { background: var(--code-bg); padding: 1.25rem; border-radius: 6px; overflow-x: auto; margin: 1.5rem 0; border: 1px solid var(--border); }
pre code { background: none; padding: 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }
ul, ol { margin: 1rem 0 1.25rem 1.5rem; }
li { margin-bottom: 0.4rem; }
nav { margin-bottom: 3rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); font-family: system-ui, -apple-system, sans-serif; font-size: 0.9rem; }
nav a { margin-right: 1.5rem; }
.meta { color: var(--muted); font-size: 0.88rem; font-family: system-ui, sans-serif; margin-bottom: 2rem; }
.emoji { font-style: normal; }
footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.82rem; font-family: system-ui, sans-serif; }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
th, td { border: 1px solid var(--border); padding: 0.5rem 0.75rem; text-align: left; }
th { background: var(--code-bg); }