:root { --fg: #1d1d1f; --muted: #6e6e73; --accent: #2a5db0; --bg: #fdfdfc; }
@media (prefers-color-scheme: dark) { :root { --fg: #e8e8ea; --muted: #9a9aa0; --accent: #7aa7ff; --bg: #161618; } }
* { box-sizing: border-box; }
body { margin: 0 auto; max-width: 42rem; padding: 2rem 1rem; font: 17px/1.6 Georgia, "Times New Roman", serif;
       color: var(--fg); background: var(--bg); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header h1 { margin: 0; font-size: 1.8rem; }
header h1 a { color: var(--fg); }
.tagline, time, footer { color: var(--muted); font-size: .9rem; }
.preview { margin: 2.2rem 0; }
.preview h2, article h1 { margin: 0 0 .2rem; font-size: 1.3rem; line-height: 1.3; }
pre { overflow-x: auto; padding: .8rem; background: rgba(127,127,127,.1); border-radius: 4px; font-size: .85rem; }
footer { margin-top: 3rem; }