:root {
  --bg: #0d1117;
  --fg: #c9d1d9;
  --accent: #58a6ff;
  --code-bg: #161b22;
  --border: #30363d;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: #fff; margin-top: 2rem; }
code {
  background: var(--code-bg);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}
pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  border: 1px solid var(--border);
}
pre code { background: none; padding: 0; }
img { max-width: 100%; border-radius: 8px; }
blockquote {
  border-left: 3px solid var(--accent);
  margin: 1rem 0;
  padding-left: 1rem;
  color: #8b949e;
}
table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
th, td { border: 1px solid var(--border); padding: 0.5rem; text-align: left; }
th { background: var(--code-bg); }
.post-meta { color: #8b949e; font-size: 0.9rem; margin-bottom: 2rem; }
.post-list { list-style: none; padding: 0; }
.post-list li { margin: 1rem 0; padding: 1rem; background: var(--code-bg); border-radius: 8px; }
.post-list .date { color: #8b949e; font-size: 0.85rem; }
header { margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); display: flex; align-items: baseline; justify-content: space-between; }
header h1 { margin: 0; font-size: 1.4rem; }
header h1 a { color: #fff; }
header h1 a:hover { text-decoration: none; color: var(--accent); }
.lang-switch { font-size: 0.9rem; white-space: nowrap; }
.lang-switch a { margin: 0 0.25rem; }
.lang-switch .active { color: #fff; font-weight: bold; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--border); color: #8b949e; font-size: 0.85rem; }