body { font-family: Arial, sans-serif; margin:0; padding:0; background:#f4f4f4; }
header { background:#0a192f; color:white; padding:20px; text-align:center; }
nav { background:#112240; padding:10px; text-align:center; }
nav a { color:white; margin:0 15px; text-decoration:none; }
section { padding:40px; background:white; margin:20px; border-radius:8px; }
footer { background:#0a192f; color:white; text-align:center; padding:20px; }
h1, h2 { color:#0a192f; }