:root {
  color-scheme: light;
  --text: #1a1d29;
  --text-secondary: #5c6270;
  --border: #e3e6eb;
  --accent: #2554c7;
  --bg-nav: #f7f8fa;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Inter, sans-serif;
  color: var(--text);
  line-height: 1.6;
}
.layout { display: flex; min-height: 100vh; }
.site-nav {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-nav);
  border-right: 1px solid var(--border);
  padding: 20px 16px;
}
.site-nav a { color: var(--text-secondary); text-decoration: none; font-size: 14px; }
.site-nav a:hover { color: var(--accent); }
.site-nav ul { list-style: none; padding-left: 14px; margin: 4px 0; }
.site-nav > ul { padding-left: 0; }
main { flex: 1; max-width: 720px; margin: 0 auto; padding: 40px 32px; }
h1, h2, h3, h4 { line-height: 1.3; }
pre { background: var(--bg-nav); border: 1px solid var(--border); border-radius: 6px; padding: 12px 14px; overflow-x: auto; }
code { font-family: ui-monospace, "SF Mono", Consolas, monospace; }
p code { background: var(--bg-nav); padding: 1px 5px; border-radius: 4px; }
table { border-collapse: collapse; width: 100%; margin: 16px 0; }
td { border: 1px solid var(--border); padding: 6px 10px; }
img, video { max-width: 100%; border-radius: 6px; }
figure { margin: 16px 0; }
figcaption { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
a.mention { font-weight: 500; }
.mention-unpublished { color: var(--text-secondary); font-style: italic; }