body{margin:0;font-family:Arial;background:white;color:#111;}
.hero{background:#FFD400;padding:60px;text-align:left;}
.hero h1{margin:0;font-size:48px;}
.hero p{font-size:20px;margin:10px 0;}
.btn{background:#0057FF;color:white;padding:15px 25px;text-decoration:none;border-radius:8px;}
.mockup{padding:40px;text-align:center;}
.mockup img{max-width:100%;border-radius:12px;}