:root {
  --bg: #ffffff;
  --ink: #1f2328;
  --muted: #656d76;
  --line: #d8dee4;
  --accent: #0969da;
  --code-bg: #f6f8fa;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }
header.site { border-bottom: 1px solid var(--line); padding: 18px 0; }
header.site .wrap { display: flex; align-items: baseline; gap: 20px; }
.brand { font-weight: 600; font-size: 17px; text-decoration: none; color: var(--ink); letter-spacing: -0.01em; }
nav a { color: var(--muted); text-decoration: none; font-size: 14px; margin-right: 16px; }
nav a:hover { color: var(--accent); }
h1 { font-size: 28px; margin: 44px 0 10px; font-weight: 600; letter-spacing: -0.015em; line-height: 1.3; }
h2 { font-size: 19px; margin: 34px 0 10px; font-weight: 600; }
p { margin: 0 0 16px; }
ul { margin: 0 0 16px; padding-left: 22px; }
li { margin-bottom: 6px; }
a { color: var(--accent); }
.meta { color: var(--muted); font-size: 13px; margin-bottom: 30px; }
.lead { color: var(--muted); font-size: 17px; margin-bottom: 34px; }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li { border-bottom: 1px solid var(--line); padding: 18px 0; }
.post-list a { font-size: 17px; font-weight: 500; text-decoration: none; }
.post-list a:hover { text-decoration: underline; }
.post-list .meta { display: block; margin: 4px 0 0; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13.5px; }
code { background: var(--code-bg); padding: 0.15em 0.35em; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; overflow: auto; line-height: 1.5; }
pre code { background: none; padding: 0; }
footer.site { border-top: 1px solid var(--line); margin-top: 64px; padding: 24px 0 40px; color: var(--muted); font-size: 13px; }
footer.site a { color: var(--muted); }