*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{font-family:system-ui,sans-serif;padding:22px;background:#eae7df;color:#27302e}:root[data-theme=dark] body{background:#303735;color:#f2f1ea}button{cursor:pointer}.demo-action{margin-top:18px;border:1px solid #27302e;border-radius:4px;background:#fff;color:#27302e;padding:10px 16px}.preview-error{color:#a83c32}