body {font-family: Arial, sans-serif; margin:0; background:#f7f9fc;}
.hero {text-align:center; padding:60px 20px;}
.features {display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:20px; padding:40px;}
.card {background:white; padding:20px; border-radius:12px; box-shadow:0 4px 12px rgba(0,0,0,0.08);}