:root{--bg:#0b1220;--card:#121a2b;--text:#e8eefc;--muted:#9fb3d9;--link:#5bb3ff;}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:#0d1117;color:#c9d1d9}
.container{max-width:900px;margin:0 auto;padding:1rem}
.site-header,.site-footer{background:#0b1220;border-top:1px solid #222;border-bottom:1px solid #222}
.brand{color:#fff;text-decoration:none;font-weight:700}
nav a{color:#9fb3d9;margin-right:1rem;text-decoration:none}
a{color:#58a6ff}
.post h1{margin-top:0}
blockquote{border-left:3px solid #30363d;padding:.5rem 1rem;color:#9fb3d9}
code,pre{background:#111b2e;color:#e6edf3;padding:.2rem .4rem;border-radius:4px}