:root { color-scheme: light; font-family: Inter, system-ui, sans-serif; }
body { margin: 0; background: #f4f6fa; color: #172033; }
.shell header { display:flex; align-items:center; gap:1rem; padding:1rem 2rem; background:#11203b; color:white; }
.shell header a { color:white; text-decoration:none; font-weight:700; }
.shell header span { flex:1; opacity:.8; }
main { min-height:calc(100vh - 64px); }
pre { max-height:24rem; overflow:auto; white-space:pre-wrap; }