:root {
  --fg: #222;
  --muted: #666;
  --link: #0066cc;
  --bg: #fff;
  --border: #eee;
  --code-bg: #f6f8fa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e6e6e6;
    --muted: #9aa0a6;
    --link: #6cb6ff;
    --bg: #111;
    --border: #2a2a2a;
    --code-bg: #1b1b1b;
  }
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.25; }

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 24px 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.site-title { font-weight: 700; font-size: 1.25rem; color: var(--fg); }
.site-header nav a { margin-left: 16px; }

.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li {
  display: flex;
  gap: 16px;
  padding: 7px 0;
}
.post-date {
  color: var(--muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.post-meta {
  margin: -8px 0 28px;
  font-size: 0.9rem;
  color: var(--muted);
}
.post-meta .post-updated {
  margin-left: 4px;
}

.intro { margin-bottom: 24px; }

blockquote {
  border-left: 3px solid var(--border);
  margin: 0 0 1rem;
  padding-left: 1rem;
  color: var(--muted);
}

code {
  background: var(--code-bg);
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}
pre {
  background: var(--code-bg);
  padding: 1rem;
  overflow-x: auto;
  border-radius: 6px;
}
pre code { background: none; padding: 0; }

img { max-width: 100%; height: auto; }

.site-footer {
  margin-top: 56px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer a { color: var(--muted); }