body{font-family:Arial,sans-serif;margin:0;background:#f5f5f5;color:#222}
header{background:#1f4f6f;color:#fff;padding:1rem}
nav a{color:#fff;margin-right:1rem;text-decoration:none}
main{max-width:900px;margin:auto;background:#fff;padding:2rem}
footer{text-align:center;padding:1rem;color:#666}
.hero{padding:2rem;background:#e8f2f7;border-radius:8px}
.btn{display:inline-block;background:#1f4f6f;color:#fff;padding:.6rem 1rem;text-decoration:none;border-radius:4px}