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/* Long inline formulas and bilingual compounds stay within the reading column. */
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/* Annotation host parity with accepted Mathematical Economics workspace. */
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#studyAnnotationBar{background:#f7f8f1;border:1px solid #d5dfca;border-radius:13px;padding:7px;box-shadow:0 5px 18px #183c3010;max-width:100%;font-family:system-ui;color:#284638}
#studyAnnotationBar[hidden]{display:none!important}.annotation-targets{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:5px}.annotation-targets button{padding:6px 9px;font:600 11px/1.3 system-ui;min-height:33px;border-radius:7px;color:#45604d;background:transparent;border:0;touch-action:manipulation}.annotation-targets button[aria-pressed="true"]{background:#173e36;color:#f6f8ec}.annotation-targets button:disabled{opacity:.4}
#annotationTargetHint{font-size:10px;line-height:1.45;color:#617359;margin:4px 5px 0}#annotationToolbarMount:empty{display:none}#sourceToolbarHost{flex-shrink:0;padding:8px 12px 0;position:relative;z-index:6}#sourceToolbarHost:empty{display:none}.sa-palette{isolation:isolate}.source-ink-target{display:none}.teacher-panel{isolation:isolate}.shell{position:relative;z-index:0}.teaching,.teaching-section,.prose,.tr-content,.exam-question{min-width:0}.teaching-section,.exam-question{scroll-margin-top:175px}
@media(max-width:800px){#lessonToolbarHost{top:66px}#studyAnnotationBar{padding:5px}.annotation-targets button{font-size:10px;padding:5px 7px}#sourceToolbarHost{padding:6px 8px 0}#annotationTargetHint{font-size:9px}}
.teacher-body{min-height:0}
.source-pager{flex:0 0 auto;display:flex;align-items:center;justify-content:center;gap:14px;padding:4px 14px;background:#f7f9f1;border-top:1px solid #d3dbc9;font:600 12px/1.2 system-ui;color:#3b5c42}
.source-pager button{display:grid;place-items:center;width:44px;height:36px;min-height:36px;border:1px solid #cfd9c4;border-radius:9px;background:#fffefa;color:#355940;font:26px/1 system-ui;cursor:pointer;touch-action:manipulation}
.source-pager button:hover:not(:disabled){background:#e7eedb;border-color:#9eb48b}
.source-pager button:disabled{opacity:.3;cursor:default}
.source-pager span{min-width:60px;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:.5px}
@media(max-width:760px){.source-pager{gap:12px;padding:3px 12px}.source-pager button{height:40px;min-height:40px}.teacher-caption{max-height:74px;overflow:auto}}


/* The notebook portal must sit above both the unified dock and fixed source sheet. */
body > [data-study-annotations].sa-host{position:relative;z-index:10000}
/* The source toggle row must not cover the Math-style sticky ink toolbar. */
body.has-ink-dock .reading-tools{position:static}
/* Keep all44px of the mobile source pager tappable beside the note launcher. */
@media(max-width:820px){body.source-open > [data-study-annotations] .sa-launch{bottom:86px}}