body{margin:0;background:#121212;color:white;font-family:sans-serif}
.sidebar{width:200px;position:fixed;height:100%;background:#000;padding:20px}
.main{margin-left:200px;padding:20px}
.player{position:fixed;bottom:0;width:100%;background:#181818;padding:10px;display:flex;align-items:center}
.grid{display:flex;flex-wrap:wrap}
.card{width:150px;margin:10px;background:#222;padding:10px;border-radius:8px}
.card:hover{background:#333}