:root{--bg:#f6f6f7;--surface:#fff;--text:#111215;--muted:#4b4f57;--line:rgba(0,0,0,.08);--overlay:rgba(0,0,0,.45);}
html,body{height:100%;}
body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.55;}
a{color:inherit;}a:hover{opacity:.85;}
.container-narrow{max-width:1120px;}
.small-muted{color:var(--muted);} .hr-soft{border-top:1px solid var(--line);}