body { font-family: Arial, sans-serif; margin:0; padding:0; background:#fafafa; color:#333;}
.site-header { background:#6a1b9a; color:#fff; padding:1em; display:flex; justify-content:space-between; align-items:center;}
.site-header a { color:white; margin:0 0.5em; text-decoration:none;}
.site-header a:hover { text-decoration:underline;}
.site-footer { background:#eee; text-align:center; padding:1em; margin-top:2em;}
.content { padding:2em; max-width:800px; margin:0 auto;}