:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #ffffff;
  --muted: #666;
  --link: #1a56db;
  --code-bg: #f2f2f2;
  --border: #e5e5e5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8e8e8;
    --bg: #14161a;
    --muted: #9a9a9a;
    --link: #7fb2ff;
    --code-bg: #1e2128;
    --border: #2a2d34;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
}

body > * {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin-bottom: 0.3rem;
}

article h1 { margin-bottom: 0.4rem; }

time {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

p { margin: 1.1rem 0; }

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

ul { padding-left: 1.1rem; }

li { margin-bottom: 1.4rem; }

li time { display: inline; margin: 0 0 0 0.5rem; }

code {
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
}
pre code { background: none; padding: 0; }

blockquote {
  margin: 1.2rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--border);
  color: var(--muted);
}

hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }