:root{--bg:#eeece5;--paper:#faf7ef;--ink:#343b36;--muted:#83877d;--line:#d4d6cb;--accent:#52634c;--font:18px;--page-ratio:1.414}
*{box-sizing:border-box}html{height:100%;overflow:hidden}body{margin:0;height:100vh;height:100dvh;overflow:hidden;background:var(--bg);color:var(--ink);font-family:Arial,'Malgun Gothic',sans-serif;transition:background .22s,color .22s}button,input,select{font:inherit}button{cursor:pointer;color:inherit;background:none;border:0}button:disabled{opacity:.3;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}[hidden]{display:none!important}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.reader-shell{height:100%;padding:8px clamp(12px,2.8vw,52px) 4px;display:flex;flex-direction:column;min-height:0}.reader-toolbar{flex:none;height:39px;display:flex;align-items:center;justify-content:space-between;gap:12px}.book-title{font-size:12px;letter-spacing:.2px;color:var(--muted)}.book-title span{font-size:10px;margin-left:10px;opacity:.7}.icon-button{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;font-size:26px;flex:none}.icon-button:hover{background:var(--line)}#settingsOpen{color:var(--ink)}.book-stage{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;width:100%}.book{flex:none;position:relative;max-width:100%;isolation:isolate;container-type:inline-size;box-shadow:0 12px 16px #1a201820}.book:before,.book:after{content:'';position:absolute;inset:3px -3px -4px 3px;border:1px solid var(--line);background:var(--paper);border-radius:3px;z-index:-1}.book:after{inset:6px -5px -7px 5px;z-index:-2}.surface{position:relative;height:auto;aspect-ratio:var(--spread-count,2) / var(--page-ratio);background:var(--paper);border-radius:3px;touch-action:pinch-zoom;outline:none;isolation:isolate;overflow:clip}.page-slot{position:absolute;top:0;bottom:0;width:50%}.page-slot.left{left:0}.page-slot.right{left:50%}.page{position:absolute;inset:0;padding:20px 42px 16px;display:flex;flex-direction:column;background:var(--paper);overflow:hidden}.page-head{display:flex;justify-content:space-between;gap:8px;font-size:9px;letter-spacing:1px;color:var(--muted);padding-bottom:8px;border-bottom:1px solid var(--line);margin-bottom:12px;flex:none}.body{font-family:Georgia,'Batang','바탕',serif;font-size:var(--font);--reader-line-height:1.95;line-height:var(--reader-line-height);word-break:keep-all;overflow-wrap:anywhere;flex:1;min-height:0;overflow:hidden}.body h2{font-size:1.5em;line-height:1.6;font-weight:400;margin:9px 0 25px;letter-spacing:-1px}.body p{margin:0 0 1em;white-space:pre-wrap}.chapter{font-family:Arial,sans-serif;font-size:10px;color:var(--accent);letter-spacing:2px}.folio{flex:none;text-align:center;font:11px Georgia,serif;color:var(--muted);padding-top:8px}.end-note{display:flex;height:100%;align-items:center;justify-content:center;color:var(--muted);font-size:.8em}.spine{position:absolute;inset:0;pointer-events:none;z-index:3;background:linear-gradient(90deg,transparent 45%,#655f4210 48%,#463f2730 49.8%,#fff4 50%,#4e442528 50.2%,transparent 55%)}.spine:after{content:'';position:absolute;left:50%;top:0;bottom:0;width:1px;background:#5a523128}.night .spine{background:linear-gradient(90deg,transparent 46%,#0002 49%,#0005 50%,#ffffff07 50.2%,transparent 54%)}
.corner{position:absolute;width:25%;height:25%;z-index:8;opacity:1;padding:0;touch-action:none;user-select:none;-webkit-user-select:none;cursor:grab}.corner:disabled{opacity:1;cursor:default}.corner.top{top:0}.corner.bottom{bottom:0}.corner.left{left:0}.corner.right{right:0}.corner:focus-visible{outline-offset:-5px}.corner-mark{position:absolute;width:15px;height:15px;opacity:.17;transition:opacity .2s;border-color:var(--accent);border-style:solid}.top .corner-mark{top:12px;border-top-width:1px;border-bottom-width:0}.bottom .corner-mark{bottom:12px;border-bottom-width:1px;border-top-width:0}.left .corner-mark{left:12px;border-left-width:1px;border-right-width:0}.right .corner-mark{right:12px;border-right-width:1px;border-left-width:0}.corner:hover .corner-mark,.corner:focus-visible .corner-mark{opacity:.45}.corner:disabled .corner-mark{opacity:.08}.surface.dragging,.surface.dragging *{cursor:grabbing!important;user-select:none;-webkit-user-select:none}.fold-layer{position:absolute;top:0;height:100%;z-index:5;pointer-events:none;transform-style:preserve-3d}.sheet-front,.sheet-back{position:absolute;inset:0;transform-origin:0 0;will-change:transform}.sheet-back{background:var(--paper);backface-visibility:visible;overflow:hidden}.fold-clip{position:absolute;left:0;top:0;overflow:hidden;transform-origin:0 0;will-change:transform}.fold-reverse{position:absolute;inset:0;z-index:2;transform-origin:0 0;will-change:transform}.back-content{transform:scaleX(-1)}.fold-shine,.front-shade,.fold-edge{position:absolute;left:0;top:0;pointer-events:none;transform-origin:0 0;will-change:transform,opacity}.front-shade{width:108px;z-index:1;background:linear-gradient(90deg,transparent,rgba(35,30,20,.10) 66.667%,transparent)}.fold-shine{width:144px;z-index:3;background:linear-gradient(90deg,transparent,rgba(53,43,24,.12) 25%,rgba(255,255,255,.23) 30.5%,rgba(80,66,40,.035) 50%,transparent)}.cast-shadow{position:absolute;inset:0;pointer-events:none;z-index:4;opacity:0}.measuring{visibility:hidden;pointer-events:none;z-index:-9}.page-ribbon{position:absolute;top:0;right:12px;width:17px;height:33px;z-index:4;background:var(--accent);clip-path:polygon(0 0,100% 0,100% 100%,50% 78%,0 100%);pointer-events:none;filter:drop-shadow(1px 2px 1px #49311b25)}
.reading-progress{flex:none;align-self:center;width:min(240px,60vw);height:32px;padding-top:5px}.progress-info{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);margin-bottom:7px;font-variant-numeric:tabular-nums;letter-spacing:.2px}.progress{height:2px;background:var(--line);border-radius:2px;overflow:hidden}.progress i{display:block;background:var(--accent);height:100%;transition:width .4s}
.settings-panel{position:fixed;inset:54px 16px auto auto;margin:0;width:min(350px,calc(100vw - 24px));max-height:calc(100dvh - 70px);padding:0;border:1px solid var(--line);border-radius:14px;background:var(--paper);color:var(--ink);box-shadow:0 16px 55px #13201830;overflow:auto;overscroll-behavior:contain}.settings-panel::backdrop{background:#0e171314}.settings-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 19px 12px;position:sticky;top:0;z-index:2;background:var(--paper);border-bottom:1px solid var(--line)}.settings-header h1{font-size:15px;font-weight:500;margin:0}.settings-header .icon-button{font-size:23px}.settings-content{padding:0 22px 20px}.setting-section{padding:19px 0;border-bottom:1px solid var(--line)}.setting-section:last-child{border:0;padding-bottom:2px}.setting-section h2{font-size:12px;font-weight:500;margin:0 0 12px;display:flex;justify-content:space-between;align-items:center}.setting-section h2 span{color:var(--muted);font:12px Georgia,serif}.description{font-size:10px;color:var(--muted);line-height:1.7;margin:7px 0 10px}.font-controls{display:flex;align-items:center;border:1px solid var(--line);border-radius:6px;padding:3px}.font-controls button{flex:1;padding:8px;font-size:14px;border-radius:4px}.font-controls output{flex:1;text-align:center;font-size:11px;color:var(--muted)}select{width:100%;padding:10px;border:1px solid var(--line);border-radius:5px;background:var(--paper);color:var(--ink);font-size:12px}.ratio-fields{display:flex;align-items:end;gap:8px;margin-top:13px}.ratio-fields label{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px;font-size:10px;color:var(--muted)}.ratio-fields input{width:100%;padding:9px 6px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);font-size:12px}.ratio-fields>span{padding-bottom:10px}.ratio-fields button{padding:10px;border-radius:4px;background:var(--accent);color:var(--paper);font-size:11px}.input-error{font-size:11px;color:var(--ink);line-height:1.6;margin:8px 0 0}.input-error:empty{display:none}.mode-controls{display:flex;gap:4px;background:var(--line);padding:4px;border-radius:7px}.mode-controls button{flex:1;padding:9px;font-size:12px;border-radius:5px;color:var(--muted)}.mode-controls button[aria-pressed=true]{background:var(--paper);color:var(--ink);box-shadow:0 1px 4px #00000012}.palette-label{font-size:10px;color:var(--muted);margin:17px 0 7px}.color-row{display:flex;align-items:center;gap:9px;padding:7px 0}.color-row label{flex:1;font-size:11px}.color-row input[type=color]{height:30px;width:34px;padding:2px;border:1px solid var(--line);border-radius:5px;background:var(--paper);cursor:pointer}.hex-input{width:78px;min-width:0;border:1px solid var(--line);border-radius:5px;padding:7px 6px;background:var(--paper);color:var(--ink);font:11px Consolas,monospace}.hex-input[aria-invalid=true]{outline:1px solid var(--ink)}.palette-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:9px;color:var(--muted);margin-top:10px}.palette-footer button{font-size:9px;text-decoration:underline;text-underline-offset:3px}.bookmark-controls>button{font-size:11px;padding:9px 12px;border:1px solid var(--line);border-radius:5px;margin-right:5px;margin-bottom:4px}
@container(max-width:650px){.page{padding:12px 18px 10px}.page-head{padding-bottom:5px;margin-bottom:8px;font-size:8px}.body h2{font-size:min(1.2em,22px);line-height:1.45;margin:6px 0 15px}.folio{padding-top:6px}.chapter{font-size:9px}.page-ribbon{right:6px;width:13px;height:27px}}
@media(max-width:550px){.reader-shell{padding:5px 12px 3px}.reader-toolbar{height:35px}.book-title{font-size:11px}.book-title span{font-size:9px;margin-left:6px}.icon-button{width:32px;height:32px}.page{padding:12px 12px 10px}.page-head{font-size:7px;padding-bottom:7px;margin-bottom:9px}.page-head span:last-child{display:none}.body{--reader-line-height:1.9;line-height:var(--reader-line-height)}.body h2{font-size:min(1.1em,20px);line-height:1.4;margin:5px 0 10px}.chapter{font-size:8px;letter-spacing:1px}.folio{font-size:9px;padding-top:7px}.page-ribbon{width:12px;height:25px;right:6px}.corner-mark{width:10px;height:10px}.left .corner-mark{left:5px}.right .corner-mark{right:5px}.top .corner-mark{top:6px}.bottom .corner-mark{bottom:6px}.settings-panel{top:45px;right:12px;max-height:calc(100dvh - 57px)}.reading-progress{height:29px}}
@media(max-height:400px){.reader-toolbar{height:30px}.reader-shell{padding-top:2px}.reading-progress{height:25px}.settings-panel{top:36px;max-height:calc(100dvh - 44px)}}
.book-title{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toolbar-actions{display:flex;align-items:center;gap:4px;flex:none}.bookmark-toggle[aria-pressed=true]{color:var(--accent)}.bookmark-toggle[aria-pressed=true] svg{fill:var(--accent)}.bookmark-jump{font-size:10px;color:var(--muted);padding:7px 8px;border-radius:5px;white-space:nowrap}.bookmark-jump:hover{background:var(--line);color:var(--ink)}.reading-progress{width:min(360px,76vw);height:39px;padding-top:6px}.progress-info{font-size:11px;margin-bottom:8px}.progress{height:4px;border-radius:3px}.theme-presets{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;margin:0 0 16px}.theme-preset{min-width:0;padding:4px;border:1px solid transparent;border-radius:7px;display:flex;flex-direction:column;align-items:center;gap:6px;font-size:9px;color:var(--muted)}.theme-preset[aria-pressed=true]{border-color:var(--accent);color:var(--ink)}.theme-preset:hover{background:var(--line)}.preset-swatch{width:100%;height:42px;display:grid;place-items:center;background:var(--sample-bg);border-radius:4px;box-shadow:inset 0 0 0 1px #80808018}.preset-swatch i{font:14px Georgia,'Batang',serif;width:65%;height:76%;display:grid;place-items:center;background:var(--sample-paper);color:var(--sample-ink);border-left:2px solid var(--sample-accent);box-shadow:1px 2px 3px #00000012}.corner:disabled:hover .corner-mark{opacity:.08}
@media(max-width:550px){.book-title span{display:none}.toolbar-actions{gap:1px}.bookmark-jump{font-size:9px;padding:6px}.reading-progress{height:36px;width:min(360px,80vw)}.progress-info{font-size:10px}.theme-presets{gap:4px}.theme-preset{padding:3px;font-size:8px}.preset-swatch{height:39px}}
@media(max-height:400px){.reading-progress{height:32px}}
.reader-shell{cursor:grab;user-select:none;-webkit-user-select:none}.page-dragging,.page-dragging *{cursor:grabbing!important;user-select:none!important;-webkit-user-select:none!important}.corner:disabled{pointer-events:none}
.library-active{overflow:auto}.library-home{min-height:100%;background:var(--bg);color:var(--ink)}.library-header{height:100px;max-width:1200px;margin:auto;padding:0 42px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}.library-brand{font:29px Georgia,'Batang',serif;letter-spacing:6px;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:24px}.library-brand span{font:9px Arial,sans-serif;color:var(--muted);letter-spacing:2px}.add-book-button{background:var(--accent);color:var(--paper);font-size:12px;padding:13px 20px;border-radius:6px}.add-book-button:hover{filter:brightness(1.08)}.library-content{max-width:1080px;margin:auto;padding:52px 38px 30px}.library-intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:36px}.library-eyebrow{font-size:9px;letter-spacing:2px;color:var(--muted);margin:0 0 20px}.library-intro h1{font:400 40px/1.45 Georgia,'Batang',serif;letter-spacing:-1.5px;margin:0 0 15px}.library-intro>div>p:last-child{font-size:12px;color:var(--muted);margin:0}.library-ornament{font:100px Georgia,serif;color:var(--accent);opacity:.38;margin-right:35px;transform:rotate(-12deg)}.drop-zone{display:flex;align-items:center;gap:18px;border:1px dashed var(--muted);border-radius:9px;padding:24px 26px;cursor:pointer;transition:background .2s,border-color .2s}.drop-zone:hover,.drop-zone.drag-over{background:var(--paper);border-color:var(--accent)}.drop-icon{width:40px;height:45px;border:1px solid var(--line);border-radius:4px;display:grid;place-items:center;font-size:23px;background:var(--paper);color:var(--accent);flex:none}.drop-zone strong{font-size:13px;font-weight:500;display:block}.drop-zone div>span{font-size:10px;color:var(--muted);display:block;margin-top:8px;line-height:1.6}.drop-arrow{margin-left:auto;font-size:22px;color:var(--muted)}.library-message{white-space:pre-line;font-size:11px;line-height:1.8;color:var(--muted);margin:12px 0;min-height:0}.library-message:empty{margin:0}.library-message.is-error{color:var(--ink);padding:12px;border:1px solid var(--line);border-radius:5px}.shelf-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:37px 0 22px}.shelf-heading h2{font-size:15px;font-weight:500;margin:0}.shelf-heading h2 span{font-size:11px;color:var(--muted);margin-left:8px}.shelf-search input{font:11px Arial,'Malgun Gothic',sans-serif;padding:9px 0 9px 12px;width:170px;border:0;border-bottom:1px solid var(--line);color:var(--ink);background:transparent;outline-offset:2px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:29px 25px}.shelf-book{position:relative;min-width:0;max-width:230px}.book-open{display:flex;flex-direction:column;width:100%;text-align:left;padding:0;border-radius:5px}.book-cover{position:relative;width:100%;aspect-ratio:3/4;box-shadow:3px 5px 9px #19211814,inset 6px 0 7px #0000000c;display:flex;flex-direction:column;border-radius:2px 5px 5px 2px;padding:21px 20px 22px;overflow:hidden;border:1px solid #00000008;transition:transform .25s,box-shadow .25s;background:#dfe4d6;color:#35483c}.book-open:hover .book-cover{transform:translateY(-4px);box-shadow:3px 9px 15px #19211820}.book-cover:before{content:'';position:absolute;inset:0 auto 0 7px;width:1px;background:#0000000c}.cover-1{background:#e0e5e9;color:#3c4c5e}.cover-2{background:#eadfd2;color:#675141}.cover-3{background:#dedce5;color:#514962}.cover-4{background:#e1e4d7;color:#48553e}.cover-topline{display:flex;justify-content:space-between;gap:8px;font:7px Arial,sans-serif;letter-spacing:1px;opacity:.6}.cover-topline>span:last-child{font-size:6px;letter-spacing:.9px}.cover-title{font:400 22px/1.6 Georgia,'Batang',serif;word-break:keep-all;overflow-wrap:anywhere;letter-spacing:-1px;margin-top:32px;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.cover-author{font-size:9px;margin-top:auto;padding-top:10px;opacity:.7}.cover-rule{width:20px;height:1px;background:currentColor;opacity:.45;margin-top:17px}.shelf-book-title{font-size:12px;margin-top:15px;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.shelf-book-meta{font-size:10px;margin-top:7px;color:var(--muted)}.shelf-book-progress{height:2px;width:100%;background:var(--line);margin-top:10px}.shelf-book-progress i{height:100%;display:block;background:var(--accent)}.book-remove{position:absolute;top:8px;right:7px;border-radius:50%;width:24px;height:24px;background:var(--paper);color:var(--ink);opacity:0;transition:opacity .2s;font-size:16px}.shelf-book:hover .book-remove,.book-remove:focus-visible{opacity:1}.library-footnote{color:var(--muted);font-size:10px;text-align:center;line-height:1.8;margin:52px 0 10px}.empty-search{font-size:12px;color:var(--muted);padding:50px 0;text-align:center}.reader-title-group{display:flex;align-items:center;min-width:0;gap:5px}#libraryBack{font:28px Georgia,serif}.reader-title-group .book-title>span:first-child{font-size:12px;margin:0;opacity:1}.reader-title-group .book-title>span:last-child{font-size:10px}.page-head>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page-head>span:last-child{flex:none}.pdf-sheet{padding:0}.pdf-render-slot{position:absolute;inset:10px 10px 26px;display:grid;place-items:center;overflow:hidden;font-size:11px;color:var(--muted)}.pdf-render-slot img{width:100%;height:100%;object-fit:contain;user-select:none;-webkit-user-drag:none}.pdf-sheet>.folio{position:absolute;left:0;right:0;bottom:8px;padding:0}.book-loading{position:fixed;inset:0;z-index:50;background:#18201c4d;display:flex;align-items:center;justify-content:center;gap:15px;flex-direction:column;backdrop-filter:blur(3px);color:#fff}.book-loading p{font-size:12px;padding:0 20px;max-width:90vw;text-align:center;overflow-wrap:anywhere}.loading-spinner{width:25px;height:25px;border:2px solid #ffffff45;border-top-color:#fff;border-radius:50%;animation:loading-spin .8s linear infinite}@keyframes loading-spin{to{transform:rotate(360deg)}}.password-panel{max-width:min(360px,90vw);border:1px solid var(--line);border-radius:10px;padding:26px;background:var(--paper);color:var(--ink)}.password-panel h2{font-size:16px;font-weight:500;margin-top:0}.password-panel p{font-size:11px;line-height:1.7;color:var(--muted)}.password-panel input{width:100%;padding:10px;border:1px solid var(--line);border-radius:4px;color:var(--ink);background:var(--paper)}.password-panel form>div{display:flex;gap:8px;justify-content:flex-end;margin-top:15px}.password-panel button{font-size:12px;border:1px solid var(--line);padding:8px 14px;border-radius:4px}.password-panel button[type=submit]{background:var(--accent);color:var(--paper)}
@media(max-width:600px){.library-header{height:76px;padding:0 22px}.library-brand{font-size:24px;gap:10px}.library-brand span{font-size:6px;letter-spacing:1px}.add-book-button{padding:10px 13px;font-size:11px}.library-content{padding:33px 23px 24px}.library-intro{margin-bottom:27px}.library-eyebrow{font-size:7px;letter-spacing:1.5px;margin-bottom:15px}.library-intro h1{font-size:30px;line-height:1.45;margin-bottom:12px}.library-intro>div>p:last-child{font-size:10px;line-height:1.8;max-width:200px}.library-ornament{font-size:62px;margin-right:1px}.drop-zone{padding:18px 15px;gap:12px}.drop-icon{width:30px;height:37px;font-size:18px}.drop-zone strong{font-size:11px}.drop-zone div>span{font-size:9px;margin-top:5px}.drop-arrow{display:none}.shelf-heading{margin-top:29px;margin-bottom:18px}.shelf-heading h2{font-size:14px}.shelf-search input{width:125px;font-size:10px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 16px}.book-cover{padding:16px 16px 18px}.cover-title{font-size:19px;margin-top:23px}.cover-topline>span:last-child{display:none}.shelf-book-title{font-size:11px;margin-top:12px}.shelf-book-meta{font-size:9px}.book-remove{opacity:.75;width:22px;height:22px;top:6px;right:5px}.library-footnote{font-size:9px;margin-top:35px}.reader-title-group{gap:1px}.reader-title-group .book-title>span:first-child{display:inline;font-size:10px}.reader-title-group .book-title>span:last-child{display:none}.pdf-render-slot{inset:6px 5px 22px}}

.text-optimized .body p{margin-bottom:.55em}
/* Wide touch target around the visible progress rail. */
.progress-control{position:relative;height:28px;margin-top:-8px;cursor:pointer;touch-action:none}.progress-control .progress{position:absolute;left:7px;right:7px;top:12px;pointer-events:none}.progress-control .progress i{transition:none}.progress-control input[type=range]{appearance:none;-webkit-appearance:none;position:absolute;inset:0;margin:0;width:100%;height:28px;background:transparent;color:var(--accent);cursor:grab;touch-action:none;border:0;border-radius:5px}.progress-control input[type=range]::-webkit-slider-runnable-track{height:4px;background:transparent}.progress-control input[type=range]::-moz-range-track{height:4px;background:transparent}.progress-control input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:14px;height:14px;margin-top:-5px;border-radius:50%;background:var(--accent);border:2px solid var(--paper);box-shadow:0 0 0 1px var(--accent)}.progress-control input[type=range]::-moz-range-thumb{width:10px;height:10px;border-radius:50%;background:var(--accent);border:2px solid var(--paper);box-shadow:0 0 0 1px var(--accent)}.progress-control input[type=range]:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.progress-control input[type=range]:disabled{cursor:default;opacity:.45}.seeking,.seeking *{cursor:grabbing!important;user-select:none!important;-webkit-user-select:none!important}
.reading-progress{height:48px}@media(max-width:550px){.reading-progress{height:46px}}@media(max-height:400px){.reading-progress{height:44px}}
/* Keep the original paper color; outline only while actually turning. */
.sheet-outline{position:absolute;inset:0;z-index:4;pointer-events:none;box-shadow:inset 0 0 0 1px var(--turn-edge,var(--line));opacity:0;will-change:opacity}.fold-edge{width:1.2px;z-index:4;background:var(--turn-edge,var(--line));opacity:0}
/* Transparent page controls must not flash the browser's pressed/tap fill. */
.surface,.surface *{-webkit-tap-highlight-color:transparent}.surface .corner{appearance:none;-webkit-appearance:none;background:transparent;border:0}.surface .corner:active{background:transparent;box-shadow:none;filter:none}.surface .corner:focus:not(:focus-visible){outline:none}.surface::selection,.surface *::selection{background:transparent;color:inherit}
/* Book management is separate from opening the cover. */
.shelf-book.menu-open{z-index:8}.book-actions{position:absolute;right:8px;top:8px;z-index:3}.book-menu-toggle{display:grid;place-items:center;width:30px;height:30px;border:1px solid color-mix(in srgb,var(--ink) 12%,transparent);border-radius:50%;background:var(--paper);color:var(--ink);font-size:22px;line-height:1;padding:0;box-shadow:0 1px 4px #0000000c;-webkit-tap-highlight-color:transparent}.book-menu-toggle:hover,.book-menu-toggle[aria-expanded=true]{background:var(--line)}.book-menu{position:absolute;top:36px;right:0;width:170px;padding:6px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);box-shadow:0 8px 25px #14201828}.book-menu button{display:block;width:100%;padding:11px 10px;text-align:left;border-radius:5px;font-size:12px;white-space:nowrap}.book-menu button:hover,.book-menu button:focus-visible{background:var(--line)}.book-menu .delete-action{color:#a84a43}.night .book-menu .delete-action{color:#e3a29b}.cover-topline{padding-right:22px}.cover-topline>span:last-child{display:none}.shelf-book-author{font-size:10px;color:var(--muted);margin-top:6px;max-width:100%;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.shelf-book-meta{margin-top:6px}.book-info-dialog{width:min(410px,calc(100vw - 32px));max-height:calc(100dvh - 36px);padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--paper);color:var(--ink);box-shadow:0 18px 70px #15201935;overflow:auto}.book-info-dialog::backdrop{background:#111a154d;backdrop-filter:blur(2px)}.book-info-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:7px}.book-info-dialog h2{font-size:18px;font-weight:500;margin:0}.book-info-heading .icon-button{font-size:23px;width:30px;height:30px}.book-info-dialog .description{font-size:11px;overflow-wrap:anywhere;line-height:1.8;margin:4px 0 21px}.book-info-dialog label{display:flex;align-items:center;justify-content:space-between;font-size:12px;margin:17px 0 9px}.book-info-dialog label span{font-size:10px;color:var(--muted)}.book-info-dialog input{display:block;width:100%;border:1px solid var(--line);border-radius:6px;padding:12px;background:var(--bg);color:var(--ink);font-size:13px}.book-info-dialog input::placeholder{color:var(--muted);font-size:11px}.book-dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:25px}.book-dialog-actions button{padding:11px 16px;border:1px solid var(--line);border-radius:6px;font-size:12px}.book-dialog-actions .primary{background:var(--accent);border-color:var(--accent);color:var(--paper)}.book-dialog-actions .danger{background:#a84a43;border-color:#a84a43;color:#fff}#deleteBookName{font-size:14px;line-height:1.8;overflow-wrap:anywhere;margin:22px 0 10px}@media(max-width:600px){.book-actions{right:6px;top:6px}.book-menu-toggle{width:29px;height:29px}.book-info-dialog{padding:20px}.book-menu{width:160px}.shelf-book-author{font-size:9px}}
@media(max-width:600px){.shelf-book:nth-child(odd) .book-menu{right:auto;left:0}}
.bookmark-toggle.has-bookmark{color:var(--accent)}.bookmark-toggle.has-bookmark svg{fill:var(--accent)}.bookmark-panel{width:min(460px,calc(100vw - 28px));max-height:calc(100dvh - 36px);padding:0;border:1px solid var(--line);border-radius:14px;background:var(--paper);color:var(--ink);box-shadow:0 16px 60px #15201935;overflow:auto}.bookmark-panel::backdrop{background:#111a1540;backdrop-filter:blur(2px)}.bookmark-panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 22px 16px;border-bottom:1px solid var(--line)}.bookmark-panel-header>div{min-width:0}.bookmark-panel h2{font-size:18px;font-weight:500;margin:0}.bookmark-panel h2 span{font-size:11px;color:var(--muted);margin-left:7px}.bookmark-panel-header p{font-size:11px;color:var(--muted);margin:9px 0 0;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.bookmark-panel-header .icon-button{font-size:24px}.bookmark-items{list-style:none;margin:0;padding:7px 16px;max-height:55dvh;overflow:auto;overscroll-behavior:contain}.bookmark-row{display:flex;align-items:center;flex-wrap:wrap;gap:5px;border-bottom:1px solid var(--line);padding:4px 0}.bookmark-row:last-child{border-bottom:0}.bookmark-go{display:flex;flex-direction:column;gap:7px;flex:1;min-width:0;text-align:left;padding:12px 9px;border-radius:7px}.bookmark-go:hover{background:var(--line)}.bookmark-row-name{font-size:13px;line-height:1.6;overflow-wrap:anywhere}.bookmark-row-page{font-size:10px;color:var(--muted)}.bookmark-row.current .bookmark-row-page{color:var(--accent)}.bookmark-row-actions{display:flex;gap:3px;align-items:center;flex:none}.bookmark-row-actions button{width:32px;height:34px;border-radius:6px;font-size:20px;color:var(--muted)}.bookmark-row-actions button:hover{background:var(--line);color:var(--ink)}.bookmark-empty{font-size:12px;color:var(--muted);line-height:2;text-align:center;margin:28px 22px 34px}.bookmark-panel-footer{padding:14px 20px 19px;border-top:1px solid var(--line)}.bookmark-panel-footer>button{width:100%;padding:12px;border-radius:6px;background:var(--accent);color:var(--paper);font-size:12px}.bookmark-delete-confirm{flex-basis:100%;display:flex;align-items:center;gap:7px;padding:8px 9px 12px;font-size:11px}.bookmark-delete-confirm span{flex:1;color:var(--muted)}.bookmark-delete-confirm button{border:1px solid var(--line);border-radius:4px;padding:7px 10px}.bookmark-delete-confirm button:last-child{color:#a84a43}.night .bookmark-delete-confirm button:last-child{color:#e3a29b}@media(max-width:550px){.bookmark-panel-header{padding:17px 16px 13px}.bookmark-items{padding:6px 10px}.bookmark-panel-footer{padding:12px 15px 16px}.bookmark-row-name{font-size:12px}.bookmark-go{padding:10px 7px}}
.library-header-actions{display:flex;align-items:center;gap:12px;flex:none}#homeSettingsOpen{border:1px solid var(--line);width:36px;height:36px}.library-active .settings-panel{top:82px;max-height:calc(100dvh - 98px)}@media(max-width:600px){.library-header-actions{gap:8px}#homeSettingsOpen{width:32px;height:32px}.library-active .settings-panel{top:65px;max-height:calc(100dvh - 80px)}}


/* Phone reading uses one full-width sheet, with the same curl geometry. */
.single-page>.page-slot.left{width:100%}.single-page>.page-slot.right,.single-page>.spine{display:none}
.surface{-webkit-touch-callout:none}.reader-shell{overscroll-behavior:none}
@media(max-width:600px){
 .reader-shell{padding:max(5px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(5px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left))}
 .reader-toolbar{height:46px;gap:5px}.reader-toolbar .icon-button{width:42px;height:44px}.bookmark-jump{min-height:44px;padding:7px 5px}
 .single-page .page{padding:14px 25px 11px}.single-page .page-head{font-size:9px;padding-bottom:6px;margin-bottom:8px}.single-page .body{--reader-line-height:1.85;line-height:var(--reader-line-height)}.single-page .folio{font-size:10px;padding-top:6px}
 .reading-progress{height:65px;width:min(430px,92%);padding-top:9px}.progress-info{font-size:11px;margin-bottom:8px}
 .progress-control,.progress-control input[type=range]{height:44px}.progress-control .progress{top:20px;height:5px}.progress-control input[type=range]::-webkit-slider-thumb{width:20px;height:20px;margin-top:-8px}.progress-control input[type=range]::-moz-range-thumb{width:16px;height:16px}
}
@media(pointer:coarse){.surface .corner:hover .corner-mark{opacity:.17}.progress-control{min-height:44px}.progress-control input[type=range]{height:44px}.progress-control .progress{top:20px}.reading-progress{min-height:64px}}

/* Custom covers keep the book title and author readable below the image. */
.book-cover.custom-cover{padding:0;background:var(--paper)}.custom-cover>.cover-image{display:block;width:100%;height:100%;object-fit:cover;position:absolute;inset:0;user-select:none;-webkit-user-drag:none}.custom-cover>.cover-topline,.custom-cover>.cover-title,.custom-cover>.cover-author,.custom-cover>.cover-rule{display:none}.custom-cover:before{z-index:1;pointer-events:none}
.book-cover-editor{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}.book-cover-editor h3{font-size:12px;font-weight:400;margin:0 0 12px;display:flex;justify-content:space-between}.book-cover-editor h3>span{font-size:10px;color:var(--muted)}.cover-editor-row{display:flex;gap:17px;align-items:center}.cover-preview{width:99px;aspect-ratio:3/4;flex:none;position:relative;overflow:hidden;display:flex;flex-direction:column;padding:14px 12px;background:var(--bg);border:1px solid var(--line);border-radius:2px 6px 6px 2px;box-shadow:2px 4px 8px #00000010}.cover-preview.has-image{padding:0}.cover-preview img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}.cover-preview-brand{font:6px Arial,sans-serif;letter-spacing:1px;color:var(--muted)}.cover-preview-title{font:16px/1.5 Georgia,'Batang',serif;margin-top:17px;word-break:keep-all;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.cover-preview-rule{height:1px;width:18px;background:var(--accent);margin-top:auto}.cover-editor-controls{min-width:0;flex:1}.cover-editor-controls button{display:block;min-height:42px;width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:6px;font-size:12px;margin-bottom:7px}.cover-editor-controls button:first-child{background:var(--accent);border-color:var(--accent);color:var(--paper)}.cover-editor-controls p{font-size:10px;line-height:1.65;margin:10px 0 0;color:var(--muted)}.cover-file-hint{font-size:10px;line-height:1.8;color:var(--muted);margin:12px 0 0}.book-info-dialog #bookCoverFile{position:absolute;width:1px;height:1px;padding:0;border:0}.book-info-dialog:has(.book-cover-editor){max-height:calc(100dvh - 28px)}
@media(max-width:600px){.cover-editor-controls button{min-height:44px}.cover-editor-row{gap:14px}.cover-preview{width:90px}.book-info-dialog .book-dialog-actions button{min-height:44px}}

.account-open{font-size:11px;min-height:36px;max-width:110px;padding:8px 12px;border:1px solid var(--line);border-radius:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-open:hover{background:var(--paper)}.account-dialog{width:min(420px,calc(100vw - 28px));max-height:calc(100dvh - 28px);padding:25px 28px 22px;border:1px solid var(--line);border-radius:16px;background:var(--paper);color:var(--ink);box-shadow:0 20px 80px #13201840;overflow:auto}.account-dialog::backdrop{background:#10191555;backdrop-filter:blur(3px)}.account-dialog-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.account-wordmark{font-size:9px;letter-spacing:4px;color:var(--accent)}.account-dialog-head .icon-button{font-size:24px}.account-dialog h2{font:400 24px/1.5 Georgia,'Batang',serif;letter-spacing:-.8px;margin:0 0 12px}.account-dialog p{font-size:12px;line-height:1.85;color:var(--muted)}#accountIntro{margin:0 0 24px}.account-tabs{display:flex;border-bottom:1px solid var(--line);margin-bottom:22px}.account-tabs button{flex:1;min-height:44px;font-size:12px;color:var(--muted);border-bottom:2px solid transparent}.account-tabs button[aria-selected=true]{color:var(--ink);border-color:var(--accent)}#accountProviderDescription{min-height:54px;margin:0 0 20px}.account-primary{display:block;width:100%;border:0;border-radius:7px;background:var(--accent);color:var(--paper);padding:14px;text-decoration:none;font-size:12px;text-align:center;min-height:46px;cursor:pointer}.account-primary[aria-disabled=true]{opacity:.45;pointer-events:none}.account-email-row{padding:12px 14px;background:var(--bg);border-radius:6px;font-size:11px;overflow-wrap:anywhere;line-height:1.8;margin:0 0 20px}.account-email-row>span{display:block}.account-email-row>span:first-child{color:var(--muted);font-size:10px;margin-bottom:3px}.account-dialog form label{font-size:12px;display:flex;justify-content:space-between;margin:0 0 9px}.account-dialog form label>span{color:var(--muted);font-size:10px}.account-dialog input{width:100%;min-height:46px;padding:12px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);font-size:16px;margin-bottom:20px}#accountStatus{margin:12px 0 0;font-size:11px}#accountStatus:empty{display:none}#accountStatus.is-error{color:var(--ink)}.account-retry{border:1px solid var(--line);border-radius:5px;padding:10px 14px;font-size:12px;margin-top:12px}.account-storage-note{font-size:10px!important;border-top:1px solid var(--line);padding-top:18px;margin:23px 0 14px!important}.account-bottom{display:flex;justify-content:space-between;gap:8px}.account-bottom button,.account-bottom a{padding:9px 0;color:var(--muted);font-size:11px;background:none;text-decoration:underline;text-underline-offset:3px}
@media(max-width:600px){.library-header{gap:8px}.library-header-actions{gap:6px}.account-open{min-height:40px;max-width:95px;padding:8px;font-size:10px}.account-dialog{padding:21px 22px}.account-dialog h2{font-size:23px}}@media(max-width:420px){.library-brand{font-size:24px;letter-spacing:4px}.library-brand span{display:none}.add-book-button{padding:11px 12px}}

.cloud-strip{max-width:1200px;margin:0 auto;padding:12px 42px 0;display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:10px;line-height:1.6}.cloud-strip>span:first-child{flex:1;min-width:120px}.cloud-strip button{font-size:10px;border:1px solid var(--line);padding:6px 9px;border-radius:5px}.cloud-strip .is-error{color:var(--ink)}.account-dialog h3{font-size:13px;font-weight:500;margin:22px 0 10px}.account-dialog textarea{width:100%;resize:none;overflow-wrap:anywhere;padding:10px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);font:13px/1.7 monospace}.account-dialog section:not(#recoveryNotice){border-top:1px solid var(--line);margin-top:20px}.account-dialog form[hidden]{display:none}.account-dialog form#profileForm label{margin-top:20px}.account-dialog #accountStatus{white-space:pre-line}@media(max-width:600px){.cloud-strip{padding:10px 24px 0}.cloud-strip button{min-height:36px}}

.batch-book-dialog{width:min(680px,calc(100vw - 28px));max-height:calc(100dvh - 28px)}.batch-book-list{display:grid;gap:14px;margin:20px 0}.batch-book-row{border:1px solid var(--line);border-radius:8px;padding:12px 16px 0;min-width:0}.batch-book-row legend{font-size:11px;color:var(--muted);padding:0 6px;max-width:100%;overflow-wrap:anywhere}.batch-book-row label{display:block;font-size:12px;margin:8px 0}.batch-book-row label.batch-select{display:flex;align-items:center;justify-content:flex-start;gap:7px}.batch-book-row input[type=checkbox]{width:18px;height:18px;min-height:18px;margin:0;accent-color:var(--accent)}.batch-book-dialog .book-dialog-actions{position:sticky;bottom:-26px;background:var(--paper);padding:16px 0 4px}.batch-book-row input:not([type=checkbox]){font-size:16px;min-height:44px}

.account-dialog .account-delete-section{margin-top:24px;padding-top:4px}.account-dialog .account-danger{color:#a23832;border-color:color-mix(in srgb,#a23832 45%,var(--line));min-height:44px}.night .account-dialog .account-danger{color:#f0aaa4;border-color:#8b5350}.account-delete-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}.account-delete-actions button{font-size:11px}.account-delete-username{margin:0 0 12px!important;overflow-wrap:anywhere}#accountDeleteForm{margin-top:20px}#accountDeletePending{padding:10px;border:1px solid var(--line);border-radius:6px}

.account-password-input{position:relative;margin-bottom:20px}.account-dialog .account-password-input input{margin-bottom:0;padding-right:52px}.account-dialog .password-toggle{position:absolute;right:2px;top:1px;bottom:1px;width:44px;min-height:44px;display:grid;place-items:center;border:0;border-radius:5px;color:var(--muted);background:transparent;cursor:pointer}.account-dialog .password-toggle:hover{color:var(--ink)}.password-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:-4px}.password-eye-slash{display:none}.password-toggle[aria-pressed=true] .password-eye-slash{display:block}

/* Enabled by account state only for signed-out login and signup. */
#accountDialog.auth-viewport[open]{position:fixed;inset:auto;top:var(--auth-view-top);left:var(--auth-view-left);margin:0;transform:translate(-50%,-50%);box-sizing:border-box;max-width:calc(var(--auth-view-width) - 28px);max-height:calc(var(--auth-view-height) - 28px);overflow-y:auto;overscroll-behavior:contain;scroll-padding-block:16px}

/* Headings scale with the body at every viewport size, including phones. */
.body .book-heading{font-size:calc(1.5em - 2px);line-height:1.45;font-weight:500;margin:0 0 1em;letter-spacing:-.025em;white-space:pre-wrap;overflow-wrap:anywhere}
.body h1.book-heading{font-size:1.8em}
.font-controls button{min-height:44px;touch-action:manipulation;background:transparent;transform:none;transition:background-color .16s ease,transform .16s ease;-webkit-tap-highlight-color:transparent}
.font-controls button.is-pressing:not(:disabled){background:var(--line);transform:scale(.96);transition-duration:.06s}
.font-controls button:focus:not(:focus-visible){outline:none}
.font-controls output{font-variant-numeric:tabular-nums}

/* A dedicated title leaf precedes the flowing text. */
.title-sheet .page-head,.title-sheet .folio{display:none}
.title-sheet .body{display:flex;align-items:center;justify-content:center;text-align:center}
.title-page{width:100%;padding:1em .3em;max-height:100%;overflow:auto;scrollbar-gutter:stable both-edges;overscroll-behavior:contain;touch-action:pan-y}
.title-page h1{font:500 1.8em/1.6 Georgia,'Batang','바탕',serif;letter-spacing:-.035em;margin:0 0 1.5em;word-break:keep-all;overflow-wrap:anywhere}
.title-page .title-author{font-size:.95em;line-height:1.7;color:var(--muted);margin:0}
.body h2.book-heading{margin-bottom:calc(var(--font) * var(--reader-line-height))}

/* Fullscreen includes dialogs and retains the visible exit control. */
:root:fullscreen{background:var(--bg)}
#fullscreenToggle .fullscreen-exit{display:none}
#fullscreenToggle[aria-pressed=true] .fullscreen-enter{display:none}
#fullscreenToggle[aria-pressed=true] .fullscreen-exit{display:block}


/* Fullscreen feedback ends on release, even while touch :hover persists. */
#fullscreenToggle,#fullscreenToggle:hover{background:transparent;transform:none;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background-color .16s ease,transform .16s ease}
#fullscreenToggle.is-pressing:not(:disabled){background:var(--line);transform:scale(.96);transition-duration:.06s}


/* Action feedback follows the press; focus and touch hover never latch it. */
:is(#settingsOpen,#homeSettingsOpen,#bookmark,#bookmarkJump),:is(#settingsOpen,#homeSettingsOpen,#bookmark,#bookmarkJump):hover{background:transparent;transform:none;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background-color .16s ease,transform .16s ease}
:is(#settingsOpen,#homeSettingsOpen,#bookmark,#bookmarkJump).is-pressing:not(:disabled){background:var(--line);transform:scale(.96);transition-duration:.06s}
#bookmarkNameDialog[open]{position:fixed;inset:auto 0;top:calc(var(--editor-top,0px) + var(--editor-height,100dvh)/2);margin:0 auto;transform:translateY(-50%);max-height:calc(var(--editor-height,100dvh) - 24px);overflow-y:auto;overscroll-behavior:contain;scroll-padding:16px}
#bookmarkNameInput{scroll-margin:16px}
/* One compact row keeps labels, slider and touch target aligned. */
.reading-progress{display:grid;grid-template-columns:auto minmax(60px,1fr) auto;align-items:center;gap:12px;width:min(600px,92%);height:44px;min-height:44px;padding:0;margin-top:8px}
.progress-info{display:contents;font-size:10px;letter-spacing:0}
#pageLabel{grid-column:1;grid-row:1;white-space:nowrap}
#percent{grid-column:3;grid-row:1;min-width:3ch;text-align:right}
.progress-control{grid-column:2;grid-row:1;height:44px;min-height:44px;margin:0}
.progress-control input[type=range]{height:44px}
.progress-control .progress{left:8px;right:8px;top:20px;height:4px}
.progress-control input[type=range]::-webkit-slider-thumb{width:16px;height:16px;margin-top:-6px}
.progress-control input[type=range]::-moz-range-thumb{box-sizing:border-box;width:16px;height:16px}
.measuring{contain:layout style}
@media(max-width:600px){.reading-progress{gap:8px}.progress-info{font-size:9px}}


/* A consistent control grid across the shelf, reader and dialogs. */
.reader-toolbar{height:48px;gap:8px}
.reader-title-group{flex:1;min-width:0;gap:8px}
.reader-toolbar .icon-button,.library-header-actions .icon-button{width:44px;height:44px;padding:0;border-radius:12px;line-height:1}
.icon-button svg{display:block;flex:none}
.toolbar-actions{gap:4px}
.bookmark-jump{min-height:44px;padding:0 10px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-variant-numeric:tabular-nums}
.settings-panel{top:64px;right:16px;width:min(372px,calc(100vw - 24px));max-height:calc(100dvh - 80px);border-radius:16px}
.settings-header{min-height:64px;padding:10px 12px 10px 20px;gap:12px}
.settings-header h1{font-size:15px;line-height:22px}
.settings-header .icon-button,.book-info-heading .icon-button,.bookmark-panel-header .icon-button,.account-dialog-head .icon-button{width:44px;height:44px;padding:0;border-radius:10px;font-size:24px;line-height:1;flex:none}
.settings-content{padding:0 20px 20px}
.setting-section{padding:20px 0}
.setting-section h2{font-size:13px;line-height:20px;margin:0 0 12px;gap:8px}
.setting-section h2 span{font:11px/20px Arial,sans-serif}
.settings-content .description{font-size:11px;line-height:1.65;margin:8px 0 0}
.font-controls{display:grid;grid-template-columns:1fr 80px 1fr;gap:4px;padding:4px;border-radius:10px}
.font-controls button{min-height:44px;padding:0;border-radius:7px;line-height:1}
.font-controls output{display:grid;place-items:center;font-size:12px;line-height:20px}
.settings-content select{height:44px;line-height:20px;padding:0 32px 0 12px;border-radius:8px}
.ratio-fields{display:grid;grid-template-columns:minmax(0,1fr) 12px minmax(0,1fr) 60px;align-items:end;gap:8px;margin-top:12px}
.ratio-fields label{gap:6px;font-size:11px;line-height:16px}
.ratio-fields input{height:44px;padding:0 10px;border-radius:8px;font-size:12px;min-width:0}
.ratio-fields>span{display:grid;place-items:center;height:44px;padding:0;font-size:12px}
.ratio-fields button{height:44px;padding:0;border-radius:8px;font-size:12px}
.mode-controls{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:11px}
.mode-controls button{min-height:44px;padding:0 12px;border-radius:8px;font-size:12px}
.palette-label{font-size:11px;line-height:18px;margin:20px 0 8px}
.theme-presets{gap:6px;margin:0 0 16px;align-items:stretch}
.theme-preset{min-height:72px;padding:5px 4px;border-radius:9px;gap:7px;font-size:10px;line-height:16px}
.preset-swatch{height:40px;border-radius:5px}
.theme-color-picker{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:12px;cursor:pointer}
.theme-color-picker input{appearance:none;-webkit-appearance:none;flex:none;width:44px;height:44px;padding:0;border:0;border-radius:10px;overflow:hidden;cursor:pointer;background:transparent}
.theme-color-picker input::-webkit-color-swatch-wrapper{padding:0}
.theme-color-picker input::-webkit-color-swatch{border:1px solid var(--line);border-radius:10px}
.theme-color-picker input::-moz-color-swatch{border:1px solid var(--line);border-radius:10px}
.theme-color-picker>span{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.theme-color-picker strong{font-size:12px;font-weight:500;line-height:18px}
.theme-color-picker #themeColorNote{font-size:10px;color:var(--muted);line-height:1.6;word-break:keep-all}
.theme-color-picker>svg{flex:none;color:var(--muted)}
.palette-footer{margin-top:8px;min-height:36px;gap:8px;font-size:10px;line-height:16px}
.palette-footer button{font-size:10px;min-height:36px;padding:0 4px;text-decoration:none;border-radius:6px;white-space:nowrap}
.book-info-dialog{padding:20px;border-radius:16px}
.book-info-heading{margin:0 0 8px;gap:12px}
.book-info-heading h2{font-size:17px;line-height:24px}
.book-dialog-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin-top:20px}
.book-dialog-actions button{min-height:44px;min-width:72px;padding:0 16px;border-radius:9px;line-height:20px;font-size:12px;display:inline-flex;align-items:center;justify-content:center}
.book-info-dialog input:not([type=checkbox]):not([type=file]){min-height:44px;border-radius:8px}
.bookmark-panel-header{padding:12px 12px 12px 20px;gap:12px}
.bookmark-panel-header h2{line-height:24px}
.bookmark-panel-header p{margin-top:4px;line-height:18px}
.bookmark-items{padding:4px 12px}
.bookmark-row{gap:8px;padding:4px 0;align-items:center}
.bookmark-go{padding:12px 8px;gap:4px;border-radius:9px}
.bookmark-row-actions{display:flex;align-items:center;gap:4px}
.bookmark-row-actions button{width:40px;height:40px;min-height:40px;padding:0;border-radius:9px;display:grid;place-items:center;font-size:18px}
.bookmark-panel-footer{padding:12px 20px}
.bookmark-panel-footer button{min-height:44px;width:100%;border-radius:9px;font-size:12px}
.library-header-actions{align-items:center;gap:8px}
.library-header-actions .add-book-button,.library-header-actions .account-open{min-height:44px;display:inline-flex;align-items:center;justify-content:center;line-height:20px;padding:0 14px;border-radius:9px}
.book-menu{padding:4px;border-radius:11px;top:40px}
.book-menu button{min-height:44px;padding:10px 12px;border-radius:7px;line-height:20px}
@media(max-width:600px){
 .reader-toolbar{height:48px;gap:6px}.reader-title-group{gap:2px}.toolbar-actions{gap:2px}
 .bookmark-jump{font-size:10px;padding:0 7px}
 .settings-panel{top:58px;right:12px;max-height:calc(100dvh - 70px)}
 .settings-content{padding:0 16px 16px}.settings-header{padding-left:16px}
 .theme-presets{gap:4px}.theme-preset{font-size:9px;padding:4px 3px}
 .library-header{padding:0 16px}.library-header-actions{gap:4px}
 .library-header-actions .add-book-button,.library-header-actions .account-open{padding:0 10px;font-size:10px}
 .library-brand{font-size:22px}.library-brand span{display:none}
}
@media(max-height:480px){.settings-panel{top:8px;max-height:calc(100dvh - 16px)}}

.settings-panel{max-width:calc(100vw - 24px)}
#ratioPreset{margin-top:8px}

/* SVG dots stay on the button's geometric center regardless of font metrics. */
.book-actions{top:8px;right:8px;width:32px;height:32px}
.book-menu-toggle{width:32px;height:32px;display:grid;place-items:center;padding:0;line-height:0}
.book-menu-toggle svg{display:block;width:18px;height:18px;pointer-events:none}
/* Equal header/footer reserves center the flowing reading area on the paper. */
.page:not(.pdf-sheet){--reading-reserve:32px;--head-gap:12px;padding:28px 42px}
.page:not(.pdf-sheet)>.page-head{height:calc(var(--reading-reserve) - var(--head-gap));line-height:11px;padding-bottom:calc(var(--reading-reserve) - var(--head-gap) - 12px);margin-bottom:var(--head-gap)}
.page:not(.pdf-sheet)>.folio{height:var(--reading-reserve);padding-top:calc(var(--reading-reserve) - 12px);line-height:12px}
@container(max-width:650px){.page:not(.pdf-sheet){--reading-reserve:24px;--head-gap:8px;padding:18px}}
@media(max-width:600px){.single-page .page:not(.pdf-sheet){--reading-reserve:26px;--head-gap:8px;padding:18px 25px}}

/* Keep Android text autosizing from changing the measured font on first paint. */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}

/* Every font size uses the same measured, size-specific reading geometry. */
.surface .page:not(.pdf-sheet){--reading-reserve:var(--reader-reserve,32px);--head-gap:var(--reader-head-gap,12px);padding:var(--reader-padding-y,28px) var(--reader-padding-x,42px)}
.surface .page .body{--reader-line-height:var(--reading-line-height,1.85);line-height:var(--reading-line-height,1.85);letter-spacing:var(--reader-letter-spacing,0px)}
.surface .page:not(.title-sheet) .body{text-align:start}
.surface .page:not(.title-sheet) .body p{margin:0 0 var(--reader-paragraph-gap,.6em)}
.surface .body h2.book-heading{font-size:calc(var(--font) * var(--reader-heading-scale,1.3));line-height:1.4;margin:0 0 var(--reader-heading-gap,1.85em)}
.surface .title-page h1{font-size:calc(var(--font) * var(--reader-title-scale,1.8))}

/* Brief, composited motion; reading and measuring pages keep their geometry. */
@keyframes panel-arrive{from{opacity:0;translate:0 7px}to{opacity:1;translate:0 0}}
@keyframes settings-arrive{from{opacity:0;translate:10px 0}to{opacity:1;translate:0 0}}
@keyframes menu-arrive{from{opacity:0;translate:0 -4px}to{opacity:1;translate:0 0}}
@keyframes shelf-arrive{from{opacity:0;translate:0 8px}to{opacity:1;translate:0 0}}
@keyframes backdrop-arrive{from{opacity:0}to{opacity:1}}
dialog[open]{animation:panel-arrive .18s ease-out}
dialog[open]::backdrop{animation:backdrop-arrive .16s ease-out}
.settings-panel[open]{animation-name:settings-arrive}
.book-menu:not([hidden]){animation:menu-arrive .14s ease-out}
.shelf-book{animation:shelf-arrive .24s ease-out backwards;animation-delay:var(--reveal-delay,0ms)}
.library-intro,.drop-zone{animation:panel-arrive .28s ease-out}
.shelf-book-progress i{transition:width .22s ease-out}
.theme-preset,.mode-controls button,.book-menu button,.bookmark-row-actions button{transition:background-color .14s ease,color .14s ease}
/* Coarse pointers do not retain the desktop cover lift after a tap. */
@media(hover:none){.book-open:hover .book-cover{transform:none;box-shadow:3px 5px 9px #19211814,inset 6px 0 7px #0000000c}}

/* Invisible page-turn areas fill the stage around the paper. */
.book-stage{position:relative}
.book-stage>.book{z-index:1}
.reader-margin{position:absolute;top:0;bottom:0;width:max(0px,calc((100% - var(--book-width,100%))/2));padding:0;z-index:0;touch-action:manipulation;background:transparent;-webkit-tap-highlight-color:transparent}
.reader-margin.previous{left:0}.reader-margin.next{right:0}
.reader-margin:focus-visible{outline:2px solid var(--accent);outline-offset:-6px}
/* Keep sign-out visible near the account heading, with a full-width touch target. */
.account-signout{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:48px;margin:18px 0 22px;padding:12px 16px;border:1px solid var(--accent);border-radius:10px;background:var(--bg);color:var(--ink);font-size:13px;font-weight:600;touch-action:manipulation;transition:background-color .16s ease}
.account-signout svg{flex:none}
.account-signout:active{background:var(--line)}
.account-bottom{margin-top:18px}
.account-bottom>button{min-height:44px;padding:10px 0}

html[data-reader-route=pending] #libraryHome{visibility:hidden}
html[data-reader-route=pending] #bookLoading{display:flex!important}