:root{color-scheme:dark;--bg:#13171c;--panel:#1c2229;--line:#35414c;--text:#f3f5f6;--muted:#acbac6;--green:#bbef58;--ink:#172006}*{box-sizing:border-box}body{margin:0;font:16px/1.5 Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{border:1px solid var(--line);border-radius:7px;background:#2a333e;color:var(--text);padding:8px 12px;cursor:pointer;font-size:14px;font-weight:600}button:hover{background:#394654;border-color:#718396}button:disabled{opacity:.45;cursor:default}.primary{background:var(--green);color:var(--ink);border-color:var(--green)}.primary:hover{background:#d0ff7d}.quiet{background:transparent}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:3px}header{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:18px 24px;border-bottom:1px solid var(--line);background:#171d23}.brand{display:flex;gap:12px;align-items:center}.brandmark{background:var(--green);color:var(--ink);font-size:26px;font-weight:900;padding:8px 10px;border-radius:8px;letter-spacing:-2px}h1{font-size:25px;margin:0;line-height:1.2}h1 small{font-size:12px;font-weight:400;color:var(--muted)}.brand span:not(.brandmark){font-size:12px;color:var(--muted);letter-spacing:1.4px}.header-actions{display:flex;gap:8px;flex-wrap:wrap}.workspace{display:grid;grid-template-columns:260px minmax(0,1fr) 245px;min-height:calc(100vh - 130px)}aside{background:var(--panel);padding:20px}.setup{border-right:1px solid var(--line)}.page-panel{border-left:1px solid var(--line)}h2{font-size:18px;margin:0}h3{font-size:16px}.section-title{display:flex;align-items:center;gap:9px;margin-bottom:18px}.section-title>span{font-size:12px;color:var(--green);border:1px solid #587331;padding:3px 6px;border-radius:4px}label{display:block;font-size:14px;color:#d6dfe6;margin:12px 0 0}input:not([type=checkbox]):not([type=range]),select{display:block;width:100%;background:#10161d;color:var(--text);border:1px solid var(--line);border-radius:5px;padding:8px;margin-top:5px;min-width:0}input[type=checkbox]{accent-color:var(--green);width:17px;height:17px;margin:0;flex-shrink:0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:0 10px}.fields input{font-size:14px}.hint{font-size:13px;line-height:1.5;color:var(--muted);margin:10px 0}details{border-top:1px solid var(--line);padding:14px 0;margin-top:14px}summary{cursor:pointer;font-size:15px;font-weight:bold}.check{display:flex;align-items:center;gap:9px}.ink-panel{padding:12px;background:#252e35;border:1px solid #495547;border-radius:8px;margin:18px 0}.ink-panel label{margin:0}.wide{width:100%;margin-top:10px}.toolbar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--line);gap:10px;flex-wrap:wrap}.tabs{display:flex;background:#0e1318;border-radius:8px;padding:4px;gap:3px}.tabs button{border:0;background:transparent;color:var(--muted)}.tabs button[aria-selected=true]{background:#384350;color:#fff}.view-controls{display:flex;align-items:center;gap:14px}.view-controls label{margin:0}.zoom-label{display:flex;gap:8px;align-items:center;font-size:13px}.zoom-label input{width:80px;accent-color:var(--green)}.main-heading{display:flex;justify-content:space-between;gap:14px;padding:24px 24px 12px;align-items:center}.main-heading h2{font-size:23px}.main-heading p{font-size:14px;color:var(--muted);margin:4px 0}.add-actions{display:flex;gap:8px;flex-shrink:0}.checks{margin:0 24px 15px;font-size:14px}.checks details{margin:0;background:#302819;border:1px solid #776035;border-radius:7px;padding:10px 14px}.checks summary{font-size:14px}.checks ul{padding-left:20px}.checks .ok{color:#c4e991}#stage{padding:12px 24px 28px;min-height:350px;overflow:auto}#stage.drag-over{outline:3px dashed var(--green);outline-offset:-7px;background:#253021}.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:20px;max-width:1200px;margin:auto}.page-card{min-width:0;background:#222c36;border:2px solid transparent;border-radius:9px;padding:12px;position:relative;cursor:pointer}.page-card.active{border-color:var(--green)}.page-card.dragging{opacity:.4}.page-card .caption{display:flex;justify-content:space-between;gap:5px;margin-top:12px;font-size:14px}.page-card .caption small{font-size:12px;color:var(--muted)}.page-name{font-size:13px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;color:var(--muted);margin-top:5px}.paper{position:relative;aspect-ratio:var(--ratio);background:white;color:#111;box-shadow:0 4px 18px #0005;overflow:hidden}.paper img{display:block;position:absolute;width:100%;height:100%;object-fit:contain}.paper .blank{position:absolute;inset:0;display:grid;place-items:center;color:#adb1b5;font-size:14px}.safe-guide{position:absolute;border:1px dashed #467aaa;pointer-events:none}.trim-guide{position:absolute;border:1px dashed #d06051;pointer-events:none}.auto-number{position:absolute;bottom:2%;left:0;right:0;text-align:center;font-size:12px;font-family:Arial;color:#000}.mono .paper img{filter:grayscale(1)}.auto-card{border:2px dashed #56606b;background:transparent}.spread{display:flex;justify-content:center;align-items:center;max-width:950px;margin:auto;transform-origin:top center}.spread .paper{width:50%;box-shadow:none;border:1px solid #dadada}.spread .paper:first-child{box-shadow:8px 0 12px -8px #0008 inset}.spread .paper:last-child{box-shadow:-8px 0 12px -8px #0008 inset}.sheet{position:relative;background:#fff;aspect-ratio:var(--sheet-ratio);max-width:1050px;margin:0 auto 24px;box-shadow:0 8px 24px #0004;color:#000}.sheet .paper{position:absolute;box-shadow:none}.sheet-fold{position:absolute;top:0;bottom:0;left:50%;border-left:1px dashed #9060aa;pointer-events:none}.sheet-label{position:absolute;background:#13171cdd;color:white;padding:3px 8px;font-size:12px;top:7px;left:7px;border-radius:4px}.printer-edge{position:absolute;border:1px solid #d36366;background:linear-gradient(#d3636610,#d3636610);pointer-events:none}.pager{display:flex;justify-content:center;align-items:center;gap:18px;margin-bottom:25px}.pager[hidden]{display:none}.bottom-bar{display:flex;justify-content:space-between;gap:15px;padding:16px 24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}#stats{color:var(--green)}.selected-preview{margin:15px 0}.selected-preview .paper{max-height:250px}.page-panel p{font-size:14px;color:var(--muted)}.page-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.page-actions .wide{grid-column:1/-1;margin:0}.danger{color:#ffb5ae}.panel-note{border-top:1px solid var(--line);margin-top:28px;padding-top:15px}.panel-note h3{margin:0}.panel-note p{font-size:13px}footer{padding:12px 24px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}dialog{border:1px solid #52606d;border-radius:12px;background:var(--panel);color:var(--text);width:min(540px,94vw);padding:22px;max-height:90vh;overflow:auto}dialog::backdrop{background:#000b}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 0 16px}.dialog-head h2{font-size:22px}.export-info{background:#111922;padding:14px;margin-top:18px;font-size:14px;border-radius:6px}dialog p,dialog li{font-size:14px}dialog li{margin:12px 0}#editorDialog{width:97vw;height:94vh;max-width:none;padding:10px;overflow:hidden}#editorDialog .dialog-head{margin:0 0 10px}#editorDialog iframe{width:100%;height:calc(100% - 60px);border:0;background:#222}#renderer{position:fixed;left:-12000px;top:0;width:1600px;height:1200px;border:0;pointer-events:none}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--green);color:#142005;padding:12px 20px;border-radius:8px;box-shadow:0 5px 25px #0008;max-width:90vw;z-index:10}.sheet-pair{max-width:1100px;margin:auto}.sheet-pair>h3{font-size:15px;font-weight:400;color:var(--muted)}.empty{border:2px dashed #50616c;text-align:center;padding:50px 20px;border-radius:12px;color:var(--muted)}.loading{padding:30px;text-align:center;color:var(--muted)}@media(min-width:1600px){.workspace{grid-template-columns:285px minmax(0,1fr) 280px}.page-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}}@media(max-width:1100px){.workspace{grid-template-columns:240px minmax(0,1fr)}.page-panel{grid-column:1/-1;border-top:1px solid var(--line);border-left:0}.page-panel .selected-preview{display:none}.panel-note{display:none}.page-actions{grid-template-columns:repeat(4,1fr)}.page-actions .wide{grid-column:auto}.main-heading{flex-wrap:wrap}.zoom-label{display:none}}@media(max-width:700px){header{padding:14px;flex-wrap:wrap}.brand span:not(.brandmark){letter-spacing:.5px}.header-actions{width:100%}.header-actions button{flex:1;padding:7px}.workspace{display:flex;flex-direction:column}.setup{border-right:0;display:grid;grid-template-columns:1fr 1fr;gap:0 14px;padding:15px}.setup>.section-title,.setup>.fields,.setup>details,.setup>.hint,.setup>.ink-panel{grid-column:1/-1}.setup>.section-title{margin-bottom:0}.setup>label:first-of-type{grid-column:1/-1}.toolbar{padding:12px}.main-heading{padding:18px 14px 10px}.checks{margin:0 14px 12px}#stage{padding:12px 14px}.page-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.page-card{padding:8px}.bottom-bar{flex-direction:column;padding:12px 14px;gap:5px}.page-actions{grid-template-columns:1fr 1fr}.page-panel{padding:15px}.sheet-label{font-size:10px}.view-controls{gap:8px}.main-heading h2{font-size:21px}.dialog-head h2{font-size:18px}#editorDialog .dialog-head{flex-wrap:wrap}#editorDialog iframe{height:calc(100% - 90px)}}

.spread-button.is-selected{background:#314226;border-color:#769350;color:#d7f9a0}.center-badge{display:block;color:var(--green);font-size:12px;margin-top:6px}.spread-diagram{display:grid;grid-template-columns:1fr 1fr;background:#f5f5f5;color:#111;position:relative;height:150px;border:2px solid var(--green);margin:14px 0}.spread-diagram div{padding:15px;text-align:center;font-size:12px}.spread-diagram div+div{border-left:2px dashed #555}.spread-diagram strong{position:absolute;left:0;right:0;text-align:center;top:65px;font-size:20px}.page-card.center-card{border-bottom-color:#789d40}.add-actions{flex-wrap:wrap}.spread-heading{font-size:16px;color:var(--green);text-align:center;margin:0 0 18px}

/* Educational imposition map */
.sheet-guide{max-width:1100px;margin:0 auto 24px;padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:9px}
.sheet-guide h3{margin:0 0 8px;font-size:18px}.sheet-guide p{font-size:14px;color:var(--muted);margin:8px 0;max-width:80ch}.sheet-guide .sheet-guide-note{font-size:13px}
.sheet-map{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,380px),1fr));gap:14px;margin-top:16px}
.sheet-map-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;min-width:0}
.sheet-map-side{display:block;padding:10px;text-align:left;min-width:0;background:#141b22;border:2px solid var(--line)}.sheet-map-side.active{border-color:var(--green)}
.sheet-map-title{display:block;font-size:14px;line-height:1.4;margin-bottom:10px;font-weight:600}
.sheet-map-pair{display:flex;align-items:flex-start;gap:0}.sheet-map-page{display:block;width:50%;min-width:0}
.sheet-map-art{position:relative;display:block;background:#fff;aspect-ratio:var(--ratio);overflow:hidden;border:1px solid #b4bbc0}
.sheet-map-art img{width:100%;height:100%;object-fit:contain;display:block}.mono .sheet-map-art img{filter:grayscale(1)}
.sheet-map-number{position:absolute;top:4px;left:4px;display:grid;place-items:center;min-width:26px;min-height:26px;padding:2px 5px;background:#13171c;color:#fff;border:1px solid #fff;border-radius:4px;font-size:16px;line-height:1.2}
.sheet-map-role{display:block;padding:6px 3px 0;color:var(--green);font-size:12px;line-height:1.4;overflow-wrap:anywhere;min-height:23px}
.sheet-map-blank{position:absolute;inset:0;display:grid;place-items:center;color:#59626a;font-size:12px}.sheet-pair h3{scroll-margin-top:16px}
@media(max-width:700px){.sheet-guide{padding:12px}.sheet-map{grid-template-columns:1fr}.sheet-map-side{padding:8px}}

.number-overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:hidden}#numberDialog{width:min(1000px,95vw)}.number-designer-layout{display:grid;grid-template-columns:minmax(280px,1fr) minmax(0,1.2fr);gap:24px;margin-top:18px}.number-preview-pair{display:flex;align-items:flex-start}.number-preview-pair .paper{width:50%;box-shadow:none;border:1px solid #c0c5ca}#numberColor{height:40px;padding:4px}#numberDialog h3{margin:8px 0 12px}@media(max-width:700px){.number-designer-layout{grid-template-columns:1fr}.number-designer-controls{order:2}}

#numberShapeFill,#numberShapeBorder{height:40px;padding:4px}

.number-color-row{display:flex;align-items:center;gap:7px}.number-color-row input[type=color]{flex:0 0 40px;width:40px!important;height:40px;padding:3px;margin-top:5px}.number-color-row input[type=text]{min-width:0;font:14px/1.5 Consolas,monospace;letter-spacing:.3px;flex:1;width:0!important}.number-color-row input:invalid{border-color:#ffb5ae}

.fullscreen-exit{display:none}.book-focus #bookFullscreen,#bookFullscreen:fullscreen{position:fixed;inset:0;width:100%;height:100dvh;background:#101318;z-index:1000;outline:0;display:flex;align-items:center;justify-content:center}.book-focus{overflow:hidden}.book-focus #stage{width:100%;height:100%;padding:16px;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden}.book-focus #stage .spread{width:min(100%,calc((100dvh - 32px)*var(--book-ratio)*2))!important;max-width:none;margin:0;flex-shrink:0}.book-focus .spread-heading{display:none}.book-focus #pager{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);max-width:calc(100% - 24px);margin:0;padding:8px 12px;border-radius:10px;background:#13171cee;opacity:0;transition:opacity .2s;gap:12px;white-space:nowrap;font-size:14px}.book-focus #bookFullscreen.reader-controls-visible #pager,.book-focus #pager:hover,.book-focus #pager:focus-within{opacity:1}.book-focus .fullscreen-exit{display:block}.book-focus #stage .paper{cursor:default}@media(max-width:600px){.book-focus #pager{gap:6px;flex-wrap:wrap;justify-content:center;white-space:normal;width:max-content}.book-focus #pager button{padding:6px 8px;font-size:12px}}

.brand-logo{width:48px;height:48px;object-fit:contain;flex-shrink:0}

.two-color .paper{filter:url(#thresholdFilter)} .two-color .paper img,.two-color .sheet-map-art img{filter:none} .two-color .sheet-map-art{filter:url(#thresholdFilter)} #recoveryPrompt{padding:12px;border:1px solid var(--green);border-radius:8px} #recoveryStatus{color:var(--green)}

/* Print checks belong with the page setup, outside the preview canvas. */
.setup .checks{margin:14px 0 0;min-width:0;overflow-wrap:anywhere}
.setup .checks details{padding:10px}
.setup .checks ul{margin-bottom:0}

/* Keep linked middle pages together in the page organizer. */
.page-grid.has-center-spread{grid-template-columns:repeat(auto-fill,minmax(min(150px,calc((100% - 20px)/2)),1fr))}
.center-pages-pair{grid-column:span 2;min-width:0;border:1px solid #789d40;border-radius:10px;background:#202b22;padding:12px}
.center-pages-pair.has-selection{border-color:var(--green)}
.center-pages-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.center-pages-header h3{margin:0;color:var(--green);font-size:16px}.center-pages-header h3 span{display:block;font-size:14px;color:var(--muted);margin-top:3px;font-weight:400}
.center-pages-toggle{display:flex;flex-wrap:wrap;gap:5px}.center-pages-toggle button{font-size:14px;padding:6px 8px}
.center-pages-toggle button[aria-pressed=true]{background:#314226;border-color:#769350;color:#d7f9a0}
.center-pages-art{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.center-pages-pair.joined .center-pages-art{gap:0}
.center-pages-pair.joined .page-card{padding:0;border:0;border-radius:0;background:transparent}
.center-pages-pair.joined .page-card .paper{box-shadow:none}
.center-pages-pair.joined .page-card.active .paper{outline:2px solid var(--green);outline-offset:-2px}
.center-pages-pair.joined .page-card .caption,.center-pages-pair.joined .page-card .page-role,.center-pages-pair.joined .page-card .page-name,.center-pages-pair.joined .page-card .center-badge{padding:0 8px}
.page-role{font-size:13px;font-weight:600;color:var(--text);margin-top:5px;overflow-wrap:anywhere}.center-card .page-role{color:var(--green)}
.center-pages-note{font-size:14px;color:var(--muted);line-height:1.5;margin:12px 0 0}
#pager{display:grid;grid-template-columns:max-content minmax(0,1fr) max-content;align-items:center;justify-content:normal;width:min(100%,460px);margin-left:auto;margin-right:auto}
#position{display:flex;align-items:center;justify-content:center;min-width:0;height:2.5em;line-height:1.25;text-align:center;white-space:normal;overflow-wrap:anywhere}
#exitFullscreen{grid-column:1/-1;justify-self:center}
#stage:has(>.spread){position:relative;padding-top:30px}
#stage>.spread-heading{position:absolute;top:3px;left:14px;right:14px;margin:0;line-height:20px}
.book-focus #stage:has(>.spread){position:static;padding:16px}
.book-focus #pager{display:grid;grid-template-columns:max-content minmax(0,1fr) max-content;width:min(460px,calc(100% - 24px));flex-wrap:nowrap}
#pager[hidden]{display:none}
.paper{isolation:isolate}
.paper>img,.paper>.blank{z-index:0}
.paper>.number-overlay{z-index:2}
@media(max-width:600px){#pager{gap:8px}#position{height:3.75em}}
@media(max-width:700px){.page-grid.has-center-spread{grid-template-columns:repeat(2,minmax(0,1fr))}.center-pages-pair{padding:10px}.center-pages-art{gap:8px}.center-pages-toggle{width:100%}.center-pages-toggle button{flex:1}}

/* Hidden controls remain hidden even when form styles set display. */
[hidden]{display:none!important}