:root {
  --fg: #1a1a1a;
  --muted: #666;
  --bg: #fbfbf9;
  --accent: #7a3b2e;
  --border: #e6e3dc;
  --code-bg: #f2f0ea;
  --maxw: 720px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
header.site { border-bottom: 1px solid var(--border); margin-bottom: 40px; }
header.site .wrap { padding-top: 34px; padding-bottom: 22px; }
.brand { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; color: var(--fg); text-decoration: none; }
.tagline { color: var(--muted); font-size: 15px; margin-top: 4px; }
nav a { color: var(--muted); text-decoration: none; margin-right: 18px; font-size: 15px; }
nav a:hover { color: var(--accent); }
nav { margin-top: 14px; }
a { color: var(--accent); }
h1 { font-size: 30px; line-height: 1.25; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 22px; margin-top: 34px; letter-spacing: -0.01em; }
h3 { font-size: 18px; margin-top: 26px; }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li { padding: 18px 0; border-bottom: 1px solid var(--border); }
.post-list h2 { margin: 0 0 4px; font-size: 20px; }
.post-list a { text-decoration: none; }
.post-list a:hover { text-decoration: underline; }
time, .meta { color: var(--muted); font-size: 14px; }
article .meta { margin-bottom: 30px; display: block; }
pre, code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; }
pre { background: var(--code-bg); padding: 14px 16px; border-radius: 8px; overflow-x: auto; line-height: 1.5; }
pre code { background: none; padding: 0; }
blockquote { border-left: 3px solid var(--border); margin: 20px 0; padding: 2px 16px; color: var(--muted); }
hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
footer.site { border-top: 1px solid var(--border); margin-top: 60px; }
footer.site .wrap { padding: 26px 20px 50px; color: var(--muted); font-size: 14px; }
.tags { margin-top: 30px; }
.tags span { display: inline-block; background: var(--code-bg); color: var(--muted); font-size: 13px; padding: 2px 9px; border-radius: 20px; margin-right: 6px; }