body{font-family:Arial,sans-serif;margin:0;color:#222;background:#f6f7fb}
nav{display:flex;justify-content:space-between;padding:14px 24px;background:#111827;color:#fff}
nav a{color:#cbd5e1;margin-left:16px;text-decoration:none}
header{background:#2563eb;color:#fff;padding:70px 20px;text-align:center}
header h1{margin:0 0 10px;font-size:40px}
section{max-width:900px;margin:40px auto;padding:0 20px}
.cards{display:flex;gap:16px;flex-wrap:wrap}
.card{flex:1;min-width:200px;background:#fff;border-radius:12px;padding:20px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.card img{width:80px;height:80px}
footer{text-align:center;padding:30px;color:#777}