:root {
  --bg: #fafaf8;
  --fg: #1d1f23;
  --muted: #6b7078;
  --line: #e4e4df;
  --accent: #2f6f5e;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e6e6e3;
    --muted: #9aa0a8;
    --line: #2a2d32;
    --accent: #6cc3a8;
    --card: #1b1e22;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.site {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--fg); }
.logo img { width: 28px; height: 28px; }
nav a { color: var(--muted); margin-left: 18px; font-size: 15px; }
nav a:first-child { margin-left: 0; }
main { padding: 36px 0 56px; }
h1 { font-size: 32px; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 22px; margin: 32px 0 10px; }
.lead { color: var(--muted); font-size: 18px; margin: 0 0 32px; }
.post-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 16px;
}
.post-card h3 { margin: 0 0 6px; font-size: 20px; }
.post-card h3 a { color: var(--fg); }
.meta { color: var(--muted); font-size: 14px; }
article p, article li { margin: 0 0 14px; }
pre {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.5;
}
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }
footer.site {
  border-top: 1px solid var(--line);
  padding: 22px 0;
  color: var(--muted);
  font-size: 14px;
}