body{margin:0;font-family:Georgia,serif;background:#fff;color:#111}
.header{display:flex;justify-content:center;padding:20px;border-bottom:2px solid #000}
.container{display:flex;max-width:1200px;margin:auto;padding:20px}
.main-content{flex:3}.sidebar{flex:1;margin-left:20px}
.hero img{width:100%}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}