body{font-family:Arial;margin:0;background:#f2f2f2}
.header{display:flex;justify-content:space-between;align-items:center;padding:15px;color:white;background:linear-gradient(90deg,red,orange,yellow,green,blue,indigo,violet)}
.header a{color:white;margin-left:15px;text-decoration:none}
.banner img{width:100%;height:300px;object-fit:cover}
.container{padding:30px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}
.card{background:white;border-radius:10px;padding:10px;box-shadow:0 3px 10px rgba(0,0,0,0.1)}
.card img{width:100%;height:200px;object-fit:cover;border-radius:6px}
.price{color:green;font-weight:bold}
.btn{display:inline-block;background:black;color:white;padding:8px 12px;margin-top:6px;text-decoration:none;border-radius:6px}
.footer{text-align:center;padding:20px;background:#111;color:white;margin-top:40px}