body{margin:0;background:#111;color:#eee;font-family:Arial}header{display:flex;justify-content:space-between;padding:15px;background:#1b1b1b;border-bottom:4px solid #ff5500}h1{color:#ff5500;margin:0}.player{display:flex;gap:20px;padding:20px}#cover{width:250px;height:250px;background:#333;border-radius:12px}ul{list-style:none;padding:20px}li{background:#222;padding:12px;margin:6px 0;border-radius:8px;cursor:pointer}li:hover,.active{background:#ff5500}