:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400}.button{background-color:#444;border:none;color:#fff;padding:10px 25px;text-align:center;display:inline-block;font-size:14px;cursor:pointer}select{background-color:#555;border-radius:5px;color:#fff;height:35px;padding:5px}option{color:#fff}.parent-node{background-color:transparent;color:#fff;text-align:center;border:none}