:root {
  --fg: #24292f;
  --muted: #57606a;
  --link: #0969da;
  --bg: #ffffff;
  --border: #d0d7de;
  --code-bg: #f6f8fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.65;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

header.site {
  border-bottom: 1px solid var(--border);
  padding: 28px 0 20px;
  margin-bottom: 36px;
}

header.site h1 {
  margin: 0 0 4px;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

header.site h1 a { color: var(--fg); text-decoration: none; }

header.site .tagline { color: var(--muted); font-size: 0.95rem; margin: 0 0 12px; }

nav a {
  color: var(--link);
  text-decoration: none;
  margin-right: 16px;
  font-size: 0.95rem;
}

nav a:hover { text-decoration: underline; }

.post-list { list-style: none; padding: 0; margin: 0; }

.post-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.post-list li:last-child { border-bottom: none; }

.post-list h2 { margin: 0 0 6px; font-size: 1.15rem; }
.post-list h2 a { color: var(--fg); text-decoration: none; }
.post-list h2 a:hover { color: var(--link); }

.meta { color: var(--muted); font-size: 0.85rem; }

.excerpt { margin: 6px 0 0; color: var(--muted); font-size: 0.95rem; }

article.post h1 { font-size: 1.6rem; margin-bottom: 4px; }
article.post .meta { margin-bottom: 28px; }
article.post h2 { font-size: 1.2rem; margin-top: 32px; }
article.post p { margin: 14px 0; }
article.post ul { padding-left: 24px; }
article.post li { margin: 6px 0; }

code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
}

pre {
  background: var(--code-bg);
  padding: 14px 16px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
}

pre code { background: none; padding: 0; }

a { color: var(--link); }

footer.site {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.85rem;
}