*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;width:100%;height:100%;overflow:hidden;font-family:Arial,sans-serif}
button,input{font:inherit}
button{cursor:pointer}
#app{--bg:#f4f1e8;--paper:#fbfaf5;--text:#171717;--muted:#686868;--line:#b9b7ae;--panel:#f7f5ed;--shadow:rgba(0,0,0,.18);height:100dvh;background:var(--bg);color:var(--text);display:grid;grid-template-rows:48px minmax(0,1fr) 52px;transition:background .15s,color .15s}
#app.theme-dark{--bg:#090909;--paper:#111;--text:#e8e8e8;--muted:#aaa;--line:#3a3a3a;--panel:#161616;--shadow:rgba(0,0,0,.65)}
#topbar,#statusbar{display:flex;align-items:center;background:var(--paper);border-color:var(--line);z-index:5}
#topbar{border-bottom:1px solid var(--line);padding:0 6px;justify-content:space-between}
#bookTitle{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center;padding:0 8px}
.iconBtn,.closeBtn{border:0;background:transparent;color:var(--text);min-width:42px;height:42px;font-weight:700;font-size:20px}
#settingsBtn{font-family:Georgia,serif;font-size:17px}
#readerShell{min-height:0;padding:0;background:var(--paper)}
#reader{height:100%;position:relative;overflow:hidden;touch-action:pan-y;background:var(--paper)}
#pageText{position:absolute;inset:0;padding:20px 18px 14px;overflow:hidden;color:var(--text);font-family:Georgia,serif;font-size:20px;line-height:1.55;text-align:justify;text-justify:inter-word;hyphens:auto;overflow-wrap:break-word;white-space:pre-wrap}
#pageText .emptyState{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px;color:var(--muted);font-family:Arial,sans-serif;font-size:15px;white-space:normal}
.tapZone{position:absolute;top:0;bottom:0;width:28%;z-index:2}
#tapLeft{left:0} #tapRight{right:0}
#statusbar{border-top:1px solid var(--line);padding:4px 7px;gap:7px;font-size:10px;color:var(--muted)}
.jumpBtn{flex:0 0 48px;height:36px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--text);font-weight:700;padding:0}
#progressWrap{min-width:0;flex:1;display:flex;flex-direction:column;justify-content:center;gap:2px}
#progressSlider{width:100%;height:22px;margin:0;accent-color:var(--text);touch-action:pan-x}
#statusLine{display:flex;align-items:center;justify-content:space-between;gap:8px;line-height:12px}
#pageStatus{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#percentStatus{flex:0 0 42px;text-align:right;font-variant-numeric:tabular-nums}
#backdrop{position:fixed;inset:0;background:rgba(0,0,0,.35);opacity:0;pointer-events:none;transition:.18s;z-index:20}
#backdrop.show{opacity:1;pointer-events:auto}
.panel{position:fixed;top:0;bottom:0;width:min(86vw,360px);background:var(--panel);z-index:30;box-shadow:0 0 25px var(--shadow);transition:transform .2s ease;color:var(--text)}
.panel-left{left:0;transform:translateX(-105%)}.panel-right{right:0;transform:translateX(105%)}.panel.open{transform:translateX(0)}
.panelHead{height:54px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 8px 0 16px}
.panelBody{padding:14px;overflow:auto;height:calc(100% - 54px)}
.bookList{display:flex;flex-direction:column;gap:8px}.bookItem{border:1px solid var(--line);background:var(--paper);color:var(--text);padding:12px;border-radius:8px;text-align:left;display:flex;gap:11px;align-items:center}.bookItem.active{outline:2px solid var(--text)}.bookIcon{font-size:21px}.hint{color:var(--muted);line-height:1.5}
.settings label{display:flex;justify-content:space-between;font-size:13px;font-weight:700;margin:12px 0 8px}.segmented,.fontGrid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.segmented button,.fontGrid button,.fontSizeRow button{border:1px solid var(--line);background:var(--paper);color:var(--text);border-radius:7px;padding:10px}.segmented button.selected,.fontGrid button.selected{background:var(--text);color:var(--paper)}
.fontSizeRow{display:grid;grid-template-columns:48px 1fr 48px;align-items:center;gap:8px}.fontSizeRow input{width:100%}
#measure{position:fixed;left:-10000px;top:0;visibility:hidden;white-space:pre-wrap;text-align:justify;overflow-wrap:break-word;hyphens:auto}
@media(min-width:700px){#readerShell{padding:18px 0}#reader{max-width:620px;margin:auto;border:1px solid var(--line);box-shadow:0 3px 18px var(--shadow)}#pageText{padding:28px 34px}}
.loginBody{margin:0;min-height:100vh;display:grid;place-items:center;background:#f4f1e8;font-family:Arial,sans-serif;color:#171717}.loginCard{width:min(90vw,380px);background:#fff;padding:28px;border:1px solid #bbb;border-radius:14px;box-shadow:0 10px 35px rgba(0,0,0,.12);text-align:center}.loginCard h1{margin:0 0 8px}.loginCard p{color:#666;margin:0 0 22px}.loginError{margin-top:14px;color:#a01818;font-size:13px;line-height:1.4}.accountBox{display:flex;gap:10px;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:8px;padding:10px;margin-bottom:14px;background:var(--paper)}.accountBox div{min-width:0}.accountBox strong,.accountBox small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.accountBox small{color:var(--muted);margin-top:3px}.logoutBtn{border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--text);padding:8px 10px;white-space:nowrap}