body{margin:0;font-family:Arial;background:#000;color:white}
.nav{display:flex;justify-content:space-between;padding:20px;background:#111}
.nav a{color:white;text-decoration:none;margin-left:20px}
.container{padding:40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#111;padding:20px;border-radius:10px;box-shadow:0 0 15px red}
button{background:red;color:white;border:none;padding:10px;border-radius:5px;cursor:pointer}
.price{color:red;font-weight:bold}