:root {
  --bg: #faf9f7; --fg: #22201d; --muted: #6b6660;
  --accent: #3a6b5f; --border: #e6e2dc; --code-bg: #f2efe9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171614; --fg: #e6e3dd; --muted: #9a938a;
    --accent: #7bb3a3; --border: #2c2a27; --code-bg: #211f1c;
  }
}
* { box-sizing: border-box; }
html { font-size: 18px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg); line-height: 1.65;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 8px 20px 64px; }

.site-header {
  max-width: 720px; margin: 0 auto; padding: 28px 20px 8px;
  display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px;
}
.site-title { font-weight: 700; font-size: 1.15rem; color: var(--fg); text-decoration: none; letter-spacing: .2px; }
.site-header nav a { color: var(--muted); text-decoration: none; margin-left: 18px; }
.site-header nav a:hover { color: var(--accent); }

a { color: var(--accent); }
h1 { font-size: 2rem; line-height: 1.2; margin: .6em 0 .2em; }
h2 { font-size: 1.35rem; margin: 1.8em 0 .4em; }
h3 { font-size: 1.1rem; margin: 1.4em 0 .3em; }
p, ul, ol { margin: .9em 0; }

.post-meta { color: var(--muted); font-size: .9rem; margin-top: 0; }
img { max-width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--border); display: block; margin: 1.4em auto; }
blockquote { border-left: 3px solid var(--accent); margin: 1.2em 0; padding: .2em 1em; color: var(--muted); }
code { background: var(--code-bg); padding: .15em .4em; border-radius: 4px; font-size: .9em;
  font-family: "SF Mono", Menlo, Consolas, "Liberation Mono", monospace; }
pre { background: var(--code-bg); padding: 14px 16px; border-radius: 8px; overflow-x: auto; border: 1px solid var(--border); }
pre code { background: none; padding: 0; }
table { border-collapse: collapse; width: 100%; margin: 1.2em 0; font-size: .95rem; }
th, td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
th { background: var(--code-bg); }
hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }
em { color: var(--fg); }

.intro { color: var(--muted); font-size: 1.05rem; margin: 1.5em 0 2em; }
.post-list { list-style: none; padding: 0; }
.post-list li { padding: 18px 0; border-bottom: 1px solid var(--border); }
.post-list li a { font-size: 1.2rem; font-weight: 600; text-decoration: none; }
.post-list time { display: block; color: var(--muted); font-size: .85rem; margin-top: 3px; }
.post-list p { color: var(--muted); margin: .5em 0 0; font-size: .95rem; }

.site-footer { max-width: 720px; margin: 0 auto; padding: 24px 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: .85rem; }