*{box-sizing:border-box}body{margin:0;font:14px system-ui,sans-serif;color:#233a34;background:#f3f8f6}button,input,select{font:inherit;padding:7px}button{cursor:pointer}header{display:flex;flex-wrap:wrap;gap:8px;padding:10px}label{display:flex;align-items:center;gap:5px}select{max-width:230px}#status{margin:10px;overflow-wrap:anywhere}#reading{height:530px;overflow:auto;background:#fff;padding:20px;color:#233a34}#chapter{max-width:760px;margin:0 auto;font-size:18px;line-height:1.65;overflow-wrap:anywhere}#chapter img{max-width:100%;height:auto}#reading.dark{color:#e1ece6;background:#152821}#reading.sepia{color:#443c30;background:#f6eedc}#search{max-width:170px}#bookmarks{display:flex;gap:7px;flex-wrap:wrap;padding:10px}#reading mark{color:#16261f;background:#ffdc6d}