.app{font-family:Arial,sans-serif;padding:20px}.container{display:flex;align-items:flex-start}.sidebar{width:200px;border-right:1px solid #ccc;margin-right:20px;height:80vh;overflow-y:auto}.sidebar ul{list-style:none;padding:0;margin:0}.sidebar li{padding:8px;cursor:pointer}.sidebar li:hover{background:#f0f0f0}.chart{width:800px;height:500px;position:sticky;top:20px;background:#fff;border:1px solid #ccc}