body{font-family:Arial,sans-serif;margin:0;color:#222}header{background:#0f172a;color:#fff;padding:15px 0}nav a{color:#fff;margin:0 10px;text-decoration:none}.container{width:90%;max-width:1100px;margin:auto}.hero{padding:100px 20px;background:#e8eefc;text-align:center}.btn{background:#2563eb;color:#fff;padding:12px 20px;text-decoration:none;border-radius:6px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.card{padding:20px;border:1px solid #ddd;border-radius:10px}section{padding:50px 0}input,textarea{display:block;width:100%;margin:10px 0;padding:12px}button{padding:12px 20px}footer{text-align:center;background:#0f172a;color:#fff;padding:20px}