body{font-family:sans-serif;background:#f9fafb}
.container{max-width:1100px;margin:auto;padding:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#fff;padding:15px;border-radius:12px;box-shadow:0 4px 10px rgba(0,0,0,0.05)}
.btn{background:#22c55e;color:#fff;padding:10px;border-radius:8px;text-decoration:none}