body{font-family:Arial,sans-serif;margin:0;background:#f5f7fb;color:#222}header{position:sticky;top:0;background:#fff;box-shadow:0 2px 8px #0002}.wrap{max-width:1100px;margin:auto;padding:20px}header .wrap,.hero .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px}nav a{margin-left:16px;text-decoration:none;color:#2563eb}.hero{background:linear-gradient(135deg,#2563eb,#06b6d4);color:#fff;padding:70px 0}.ill{font-size:80px}.btn{background:#fff;color:#2563eb;padding:12px 20px;border-radius:25px;text-decoration:none}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.card{background:#fff;padding:20px;border-radius:12px;box-shadow:0 4px 12px #0002}footer{text-align:center;background:#111827;color:#fff;padding:20px;margin-top:40px}@media(max-width:768px){header .wrap,.hero .wrap{flex-direction:column;text-align:center}}