.course-library-dialog{width:min(1100px,calc(100vw - 36px));max-height:90vh;border:1px solid #cce2df;border-radius:20px;padding:22px;color:#1d3d61;background:#fff;box-shadow:0 24px 80px #15344844}.course-library-dialog::backdrop{background:#14344288}.course-library-dialog header{display:flex;gap:20px;align-items:flex-start;justify-content:space-between}.course-library-dialog h2{margin:0;font-size:23px}.course-library-dialog header p{margin:6px 0 18px;font-size:14px;color:#567083}.course-filters{display:grid;grid-template-columns:2fr 1fr 2fr auto;gap:12px;align-items:end}.course-filters label{display:grid;gap:5px;font-size:13px;font-weight:600}.course-filters input,.course-filters select{width:100%;height:42px;margin:0;border:1px solid #bed8d7;border-radius:10px;padding:0 10px;background:#fff;color:#1d3d61}.course-library-dialog .btn{min-height:38px;width:auto;padding:8px 14px;margin:0;font-size:13px}.course-library-dialog [data-library-status]{font-size:13px;color:#087f77;min-height:18px;margin:12px 0}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.course-choice{display:grid;gap:8px;text-align:left;padding:16px;border:1px solid #d2e5e1;border-radius:12px;background:#f7fcfa;color:#1d3d61;cursor:pointer}.course-choice:hover{border-color:#00877e;background:#eaf8f3}.course-choice span{font-size:12px;color:#567083}.course-count{display:flex;justify-content:space-between;margin:14px 0;font-size:13px}.course-count span{border-radius:20px;background:#fff2c6;color:#7b5b08;padding:3px 10px}.course-table-scroll{overflow:auto}.course-table{border-collapse:collapse;width:100%;font-size:13px}.course-table th{text-align:left;color:#62758a;background:#f3f8fa;padding:9px 10px}.course-table td{border-bottom:1px solid #e0eceb;padding:10px;vertical-align:middle}.course-table td:first-child{width:55%;overflow-wrap:anywhere}.course-table small{display:block;color:#748a9c;margin-top:4px;font-size:11px}.course-table td:last-child{text-align:right;white-space:nowrap}.course-pager{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}.course-session-note,.course-missing{font-size:13px;border-radius:10px;background:#f4faf7;padding:12px;margin:10px 0}.course-session-note summary,.course-missing summary{cursor:pointer;font-weight:700}.course-source-row p{margin:7px 0;line-height:1.55}.course-source-row small{display:block;margin-top:10px;color:#698797}.course-source-row strong{font-size:11px;color:#648578}@media(max-width:680px){.course-library-dialog{padding:14px;width:calc(100vw - 20px);max-height:94vh}.course-filters{grid-template-columns:1fr 1fr}.course-grid{grid-template-columns:1fr}.course-table{min-width:520px}.course-library-dialog h2{font-size:19px}}
.course-audio-set{border:1px solid #cce3df;border-radius:14px;padding:16px;margin:12px 0;background:#f8fcfb}.course-audio-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.course-audio-heading h3{margin:0;font-size:18px}.course-audio-heading p{margin:5px 0 0;font-size:13px;color:#567083}.course-library-dialog .course-listen-all{background:#00877e;color:#fff;white-space:nowrap}.course-player{display:flex;gap:18px;align-items:center;background:#fff;border-radius:12px;padding:14px;margin-top:14px}.course-player[hidden],.course-player img[hidden]{display:none}.course-player img{width:150px;max-height:110px;object-fit:contain}.course-player-main{flex:1;min-width:0}.course-player audio{display:block;width:100%;margin:10px 0}.course-audio-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.course-audio-controls label{display:flex;gap:6px;align-items:center;font-size:13px;margin-left:auto}.course-audio-controls input{width:16px;height:16px;margin:0}.course-player [role=status]{font-size:12px;color:#567083;margin:8px 0 0}.course-track-list{margin-top:12px;font-size:13px}.course-track-list summary,.course-original-files summary{cursor:pointer;font-weight:600}.course-track-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-top:10px}.course-track{border:1px solid #d3e6e2;background:#fff;border-radius:8px;padding:9px 10px;text-align:left;font:inherit;color:#1d3d61;cursor:pointer}.course-track span{font-size:11px;color:#6b8193;margin-right:6px}.course-track:hover,.course-track.is-playing{border-color:#00877e;background:#e0f4ee}.course-track:focus-visible{outline:2px solid #00877e;outline-offset:2px}.course-original-files{font-size:13px;margin:14px 0}.course-session-note{background:#f5f7f8}.course-library-dialog .course-table{min-width:0}@media(max-width:680px){.course-audio-set{padding:12px}.course-audio-heading{align-items:flex-start}.course-audio-heading h3{font-size:16px}.course-player{flex-direction:column;align-items:stretch;padding:10px}.course-player img{align-self:center}.course-track-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-audio-controls label{margin-left:0}.course-table td{padding:8px 5px}.course-table td:first-child{width:50%}.course-table th{padding:8px 5px}.course-library-dialog .course-filters{grid-template-columns:1fr 1fr}.course-filters label:first-child,.course-filters label:nth-child(3){grid-column:1/-1}}

.course-player audio:not([controls]){display:none}.course-audio-controls select{width:auto;margin:0;padding:4px;border:1px solid #bed8d7;border-radius:6px;font:inherit;color:#1d3d61}.course-audio-controls label{margin-left:0}

.course-single-audio [data-audio-prev],.course-single-audio [data-audio-next],.course-single-audio .course-audio-gap{display:none}.course-library-dialog button[hidden],.course-track-list[hidden]{display:none}

.course-document-view{margin:12px 0;border:1px solid #cce3df;border-radius:12px;padding:12px;background:#f8fcfb}.course-document-view header{align-items:center}.course-document-view h3{margin:0;font-size:16px;overflow-wrap:anywhere}.course-document-view p{font-size:12px;color:#567083}.course-document-view iframe{width:100%;height:65vh;border:0;background:#fff}.course-table td:last-child .btn{margin:3px}

.course-pdf-controls{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:12px 0;font-size:13px}.course-document-view canvas{display:block;margin:auto;background:#fff;height:auto}

@media(max-width:680px){.course-table thead{display:none}.course-table,.course-table tbody{display:block}.course-table tr{display:grid;grid-template-columns:1fr auto;border-bottom:1px solid #e0eceb;padding:10px 0;gap:5px}.course-table td{display:block;border:0;padding:2px 0}.course-table td:first-child{grid-column:1/-1;width:auto;overflow-wrap:break-word}.course-table td:nth-child(2){display:none}.course-table td:last-child{white-space:normal;text-align:right}.course-table td:nth-child(3){align-self:center}.course-document-view header{gap:8px}}

.course-pdf-controls{flex-wrap:wrap}.course-pdf-page{overflow:auto;max-height:70vh;background:#edf2f4;border-radius:8px}.course-pdf-page:focus-visible{outline:2px solid #00877e;outline-offset:2px}.course-pdf-page canvas{margin:0 auto}.course-pdf-controls [data-pdf-zoom]{margin-left:auto}

.course-lesson-heading{display:flex;gap:14px;align-items:center;justify-content:space-between;margin:8px 0 12px;padding-bottom:12px;border-bottom:1px solid #dce9e6}.course-lesson-heading h3{margin:0;font-size:19px;line-height:1.35;overflow-wrap:anywhere}.course-lesson-heading p{margin:5px 0 0;font-size:13px;color:#567083;white-space:pre-line}.course-lesson-nav{display:flex;gap:6px;flex-shrink:0}.course-library-dialog [data-library-status]:empty{display:none}.course-lesson-heading h3:focus{outline:none}.course-lesson-heading h3:focus-visible{outline:2px solid #00877e;outline-offset:4px}@media(max-width:680px){.course-lesson-heading{align-items:stretch;flex-direction:column;gap:10px}.course-lesson-nav{justify-content:space-between}.course-lesson-heading h3{font-size:17px}}

.course-resume{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:8px 0 16px;padding:12px;background:#eaf8f3;border-radius:10px;font-size:13px}.course-resume .btn{margin-left:auto}.course-resume small{width:100%;color:#567083}.course-start{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0 12px;font-size:12px}.course-start span{color:#567083}.course-start .btn:first-child{background:#00877e;color:white}

.course-picker-heading{display:flex;align-items:center;gap:12px;justify-content:space-between}.course-picker-heading h3{font-size:18px;margin:8px 0}.course-picker-heading span,.course-lesson-picker p{font-size:13px;color:#567083}.course-lesson-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px;margin:10px 0}.course-lesson-choice{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;border:0;border-bottom:1px solid #dce9e6;background:transparent;padding:10px 4px;color:#1d3d61;font:inherit;font-weight:600;text-align:left;cursor:pointer}.course-lesson-choice:hover{background:#eaf8f3;color:#00877e}.course-lesson-choice:focus-visible{outline:2px solid #00877e;outline-offset:-2px}.course-lesson-pages{display:flex;align-items:center;justify-content:space-between;gap:6px;flex-wrap:wrap;margin:12px 0;font-size:12px}.course-context-options summary{cursor:pointer;font-size:13px;color:#567083;margin:10px 0}@media(max-width:680px){.course-lesson-list{gap:0 12px}.course-picker-heading h3{font-size:16px}.course-lesson-pages .btn{font-size:12px;padding:8px}}

.course-image-activity{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid #dce9e6;font-size:14px}.course-image-controls{display:flex;justify-content:space-between;gap:8px;margin:12px 0}.course-image-page{display:block;overflow:auto;max-height:70vh;min-height:80px;background:#fff}.course-image-page img{display:block;margin:0 auto;max-width:100%;max-height:65vh;width:auto;height:auto;object-fit:contain}.course-image-view details{font-size:12px;margin-top:12px;overflow-wrap:anywhere}.course-image-view summary{cursor:pointer;color:#567083}

.course-image-controls{flex-wrap:wrap}.course-image-view.is-zoomed img{max-width:none;max-height:none;margin:0}.course-image-page:focus-visible{outline:2px solid #00877e;outline-offset:2px}

/* Keep the worksheet in view while listening; preserve 44px touch targets. */
.course-pdf-view header{gap:10px;margin-bottom:8px}.course-library-dialog .course-pdf-view [data-document-close]{min-width:44px;min-height:44px;padding:0;font-size:24px;flex-shrink:0;box-shadow:none}
.course-reader-audio{display:grid;grid-template-columns:auto minmax(0,1fr) 44px 44px;gap:8px;margin:8px 0}.course-reader-audio [data-reader-audio-status]{font-size:12px;line-height:1.35;overflow-wrap:anywhere}.course-library-dialog .course-reader-audio .btn{min-height:44px;padding:6px 10px;box-shadow:none}.course-reader-audio [data-reader-audio-next],.course-reader-audio [data-reader-audio-prev]{font-size:20px}.course-reader-audio label{grid-column:1/-1;display:flex;align-items:center;gap:6px;font-size:12px}.course-reader-audio label input{width:18px;height:18px;margin:0}
.course-reader-guide{font-size:12px;color:#567083;margin:6px 0}.course-reader-guide summary{cursor:pointer;min-height:28px;display:list-item}.course-reader-guide p{margin:4px 0 8px}.course-page-toolbar{display:grid;grid-template-columns:44px minmax(0,1fr) 44px auto;gap:6px;margin:8px 0}.course-page-toolbar [data-pdf-page]{text-align:center;font-size:12px}.course-library-dialog .course-page-toolbar .btn{min-height:44px;padding:6px 9px;box-shadow:none}.course-page-toolbar [data-pdf-prev],.course-page-toolbar [data-pdf-next]{font-size:20px}.course-page-toolbar [data-pdf-zoom]{margin-left:0}
@media(max-width:680px){.course-library-dialog:has(.course-pdf-view)>header p{display:none}.course-pdf-view{padding:10px;margin:8px 0}.course-pdf-view h3{font-size:14px;line-height:1.4}.course-reader-audio{gap:6px}.course-library-dialog .course-reader-audio .btn{font-size:12px;padding:6px 8px}.course-library-dialog .course-reader-audio [data-reader-audio-next],.course-reader-audio [data-reader-audio-prev]{font-size:20px}.course-page-toolbar{gap:4px}.course-library-dialog .course-page-toolbar [data-pdf-zoom]{font-size:12px;padding:6px}.course-pdf-view .course-pdf-page{max-height:65vh}}

.material-viewer-dialog .course-page-toolbar{grid-template-columns:44px minmax(0,1fr) 44px auto}.material-viewer-dialog .material-single-page{grid-template-columns:minmax(0,1fr) auto}.material-viewer-dialog .course-page-toolbar [data-material-prev],.material-viewer-dialog .course-page-toolbar [data-material-next]{font-size:20px}.material-viewer-dialog .course-page-toolbar [data-material-zoom]{margin-left:0}.material-viewer-dialog .course-pdf-page canvas{display:block;margin:0 auto}.material-download-footer{display:flex;justify-content:flex-end;margin-top:12px}.material-viewer-dialog h2{font-size:18px;line-height:1.4;overflow-wrap:anywhere}

@media(max-width:680px){.course-reader-audio{gap:4px}.course-library-dialog .course-reader-audio [data-reader-audio-toggle]{max-width:108px;line-height:1.25}.course-library-dialog .course-reader-audio [data-reader-audio-prev]{font-size:20px}}

.course-study-steps{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.course-study-steps .btn{min-height:44px;flex:1 1 130px}.course-study-steps small{margin-right:6px;color:inherit}.course-study-steps [aria-current="step"]{background:#087e78;color:#fff;border-color:#087e78}

.course-lesson-text{min-width:0}.course-lesson-text strong{display:block;font-size:14px;line-height:1.35}.course-lesson-text small{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px;line-height:1.4;font-weight:400;color:#567083;margin-top:3px}.course-lesson-choice{align-items:center}@media(max-width:680px){.course-lesson-list{grid-template-columns:minmax(0,1fr)}.course-lesson-choice{padding:8px 4px}}

.course-lesson-search{display:flex;gap:8px;margin:10px 0}.course-lesson-search input{min-width:0;flex:1;border:1px solid #cddfe2;border-radius:10px;padding:10px 12px;font:inherit;min-height:44px}.course-lesson-search .btn{min-height:44px}

.course-draft-form{margin:12px 0;padding:16px;border:1px solid #b8d8d1;border-radius:12px;background:#fff}.course-draft-form header{display:flex;justify-content:space-between;align-items:center;gap:12px}.course-draft-form h3{margin:0}.course-draft-form p{margin:8px 0}.course-draft-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.course-draft-fields label{display:flex;flex-direction:column;gap:4px;min-width:0}.course-draft-wide{grid-column:1/-1}.course-draft-fields input,.course-draft-fields select,.course-draft-fields textarea{box-sizing:border-box;width:100%;min-height:44px;padding:8px;border:1px solid #b8cdd7;border-radius:8px;font:inherit}.course-draft-fields textarea{min-height:72px;resize:vertical}@media(max-width:600px){.course-draft-fields{grid-template-columns:1fr}.course-draft-form{padding:12px}.course-draft-form .btn{min-height:44px}}

.material-existing-file{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px;border:1px solid #d2e6e3;border-radius:10px;background:#f1faf8}.material-existing-file small{display:block;margin-top:4px;overflow-wrap:anywhere}.material-existing-file .btn{flex-shrink:0}@media(max-width:600px){.material-existing-file{flex-direction:column;align-items:stretch}}

.learner-lesson-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 16px;border-bottom:1px solid #d2e6e3;background:white}.learner-lesson-row h3{margin:0;font-size:16px}.learner-lesson-row small{display:block;color:#456077;margin-top:5px}.learner-lesson-row .btn{flex-shrink:0;min-height:44px}.learner-lesson-row>div{min-width:0;overflow-wrap:anywhere}@media(max-width:600px){.learner-lesson-row{gap:10px;padding:12px}.learner-lesson-library .library-filters{display:block}.learner-lesson-library .field{margin-top:10px}}

.child-context-strip{padding:8px 12px;margin:0 0 16px;border-left:3px solid #087e78;background:white}.child-context-strip>.heading{margin:0;padding:0;gap:10px}.child-context-strip h2{font-size:16px;margin:0}.child-context-strip small{font-size:12px;color:#456077}.child-context-strip .iconbtn{width:44px;height:44px;min-height:44px}

.course-audio-practice{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin:10px 0;font-size:13px}.course-audio-practice label{display:flex;align-items:center;gap:6px}.course-audio-practice select{min-height:44px;padding:6px 8px;border:1px solid #b8cdd7;border-radius:8px;background:#fff;color:#1d3d61;font:inherit}.course-audio-practice .btn{min-height:44px}.material-viewer-dialog .course-track[aria-current="true"]{background:#e0f4ee;border-color:#00877e;font-weight:600}

.material-viewer-dialog .material-listen-controls{display:grid;grid-template-columns:minmax(0,1fr) 44px 44px;gap:8px}.material-listen-controls .btn{min-height:44px;padding:6px 10px}.material-listen-controls [data-prev],.material-listen-controls [data-next]{font-size:20px;padding:0}.material-viewer-dialog .course-audio-practice .btn{padding:8px 10px;font-size:12px}.course-audio-practice label{font-size:12px}.course-audio-practice select{max-width:110px}

.material-resume{margin-bottom:16px;border-left:3px solid #087e78}.material-resume small{margin:0 0 4px}

.learner-lesson-table{width:100%;table-layout:fixed;border-collapse:collapse;background:white;text-align:left}.learner-lesson-table th,.learner-lesson-table td{padding:12px 14px;border-bottom:1px solid #d2e6e3;vertical-align:middle;overflow-wrap:anywhere}.learner-lesson-table thead th{font-size:12px;color:#456077;background:#eff8f6}.learner-lesson-table th:first-child{width:110px}.learner-lesson-table th:last-child{width:116px}.learner-lesson-table tbody th{font-weight:400}.learner-lesson-table small{display:block;color:#456077;font-size:12px;line-height:1.5;margin-top:4px}.learner-lesson-table .lesson-content-title{font-weight:600;line-height:1.5}.learner-lesson-table td:last-child{text-align:right}.learner-lesson-table .btn{min-height:44px;padding:10px 16px}.learner-lesson-table tr[hidden]{display:none!important}@media(max-width:600px){.learner-lesson-table th,.learner-lesson-table td{padding:10px 8px;font-size:13px}.learner-lesson-table th:first-child{width:62px}.learner-lesson-table th:last-child{width:72px}.learner-lesson-table .btn{padding:8px;font-size:12px}.learner-lesson-table small{font-size:11px}.learner-lesson-table tbody th b{font-size:14px}}

[data-learner-lesson-detail] .material-card{display:grid;grid-template-columns:minmax(0,1fr) 160px;align-items:center;gap:16px;border-radius:10px;padding:14px 16px;margin-bottom:10px}[data-learner-lesson-detail] .material-actions{margin:0;display:flex;justify-content:flex-end}[data-learner-lesson-detail] .material-actions .btn{min-height:44px;width:100%}[data-learner-lesson-detail] .material-summary>p{margin-left:0;font-size:13px;line-height:1.6}[data-learner-lesson-detail] .material-title h3{font-size:15px}[data-learner-lesson-detail] .learner-detail-search{margin:0 0 12px}@media(max-width:600px){[data-learner-lesson-detail] .material-card{grid-template-columns:minmax(0,1fr);gap:12px;padding:14px}[data-learner-lesson-detail] .material-actions{justify-content:flex-start}[data-learner-lesson-detail] .material-actions .btn{width:auto;min-width:140px}[data-learner-lesson-detail] .material-title h3{font-size:14px}}

/* Keep the lesson itself visible on a phone; one native activity chooser replaces the button grid. */
.material-mobile-steps{display:none}.material-resume-row{margin:2px 0 6px;font-size:12px;color:#567083}.material-resume-row[hidden]{display:none}.material-pdf-reader .material-download-footer{align-items:center;gap:8px}.material-pdf-reader [data-material-download]{margin-left:auto}.material-pdf-reader [data-material-body]{margin-top:0}
@media(max-width:600px){.material-pdf-reader{width:calc(100vw - 24px)!important;max-width:calc(100vw - 24px);box-sizing:border-box;padding:14px;max-height:90dvh}.material-pdf-reader header{gap:8px}.material-pdf-reader h2{font-size:16px;line-height:1.35;min-width:0}.material-pdf-reader [data-material-close]{min-width:44px;min-height:44px;padding:6px 8px}.material-pdf-reader .course-study-steps{display:none}.material-mobile-steps{display:block;margin:10px 0 6px}.material-mobile-steps label{display:flex;align-items:center;gap:10px;font-size:12px;color:#456077}.material-mobile-steps select{min-width:0;flex:1;min-height:44px;margin:0;border:1px solid #b8d8d1;border-radius:10px;padding:8px;background:#f1faf8;color:#1d3d61;font:inherit;font-size:14px}.material-pdf-reader .course-page-toolbar{margin:6px 0;gap:4px;grid-template-columns:44px minmax(0,1fr) 44px auto}.material-pdf-reader .course-page-toolbar .btn{min-height:44px;padding:6px 8px;font-size:12px}.material-pdf-reader .course-page-toolbar [data-material-prev],.material-pdf-reader .course-page-toolbar [data-material-next]{font-size:20px}.material-pdf-reader .material-download-footer{margin-top:8px}.material-pdf-reader .material-download-footer .btn{min-height:44px;font-size:12px;padding:6px 10px}}

/* Keep the listening controls visible; reveal individual clips only on demand. */
.material-viewer-dialog .material-track-list{border-top:1px solid #d3e6e2;padding-top:12px;margin-top:14px}
.material-viewer-dialog .material-track-list summary{min-height:44px;display:flex;align-items:center;gap:8px;color:#1d3d61;list-style:none}
.material-viewer-dialog .material-track-list summary::before{content:"▸";color:#00877e}
.material-viewer-dialog .material-track-list[open] summary::before{content:"▾"}
.material-viewer-dialog .material-track-list summary:focus-visible{outline:2px solid #00877e;outline-offset:2px;border-radius:6px}
.material-viewer-dialog .material-track-list .course-track-grid{max-height:min(35vh,280px);overflow:auto;overscroll-behavior:contain;padding:3px}

.course-mobile-study{display:none}
@media(max-width:600px){.course-library-dialog .course-document-view .course-study-steps{display:none}.course-library-dialog .course-mobile-study{display:block;margin:8px 0}.course-mobile-study label{display:flex;align-items:center;gap:10px;font-size:12px;color:#456077}.course-mobile-study select{flex:1;min-width:0;min-height:44px;margin:0;border:1px solid #b8d8d1;border-radius:10px;padding:8px;background:#f1faf8;color:#1d3d61;font:inherit;font-size:14px}}

/* Keep portrait PDFs inside the reading pane instead of scrolling their controls away. */
.material-pdf-reader[open]{display:flex;flex-direction:column;overflow:hidden;max-height:90dvh}
.material-pdf-reader>header,.material-pdf-reader>.course-study-steps,.material-pdf-reader>.material-mobile-steps,.material-pdf-reader>.course-page-toolbar,.material-pdf-reader>.material-download-footer,.material-pdf-reader>.material-resume-row{flex-shrink:0}
.material-pdf-reader>.course-reader-guide{flex-shrink:0;max-height:20dvh;overflow:auto}
.material-pdf-reader>[data-material-body]{flex:1 1 auto;min-height:0;max-height:none;overflow:auto;overscroll-behavior:contain}

.material-readable-panels{padding:8px;display:flex;flex-direction:column;gap:16px}.material-readable-panels .material-panel-instruction{margin:0;max-width:100%;font-size:14px;line-height:1.5}.material-readable-panels figure{margin:0;min-width:0;max-width:100%}.material-panel-canvas{max-width:100%;overflow:auto;overscroll-behavior-x:contain}.material-readable-panels figcaption{font-size:13px;font-weight:600;color:#1d3d61;margin:0 0 6px}.material-viewer-dialog .material-readable-panels canvas{margin:0;display:block}

.course-library-dialog .course-study-steps .btn[aria-current="step"],.course-library-dialog .course-study-steps .btn[aria-current="step"]:hover,.course-library-dialog .course-study-steps .btn[aria-current="step"]:focus-visible{background:#087e78;color:#fff;border-color:#087e78}

@media(max-width:600px){.course-audio-heading{flex-wrap:wrap}.course-audio-heading>div{flex-basis:100%}.course-library-dialog .course-audio-heading>.btn{flex:1 1 90px;white-space:normal;min-height:44px}}

/* A reviewed audio activity stays one compact staff row until explicitly expanded. */
.staff-audio-set details{margin-top:8px}
.staff-audio-set summary{cursor:pointer;font-weight:600}
.staff-audio-set ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 28px;padding-left:24px;margin:12px 0}
.staff-audio-set li{overflow-wrap:anywhere;font-size:14px}
.staff-audio-set details>.btn{margin:8px 0}
@media(min-width:900px){.staff-audio-set ol{grid-template-columns:repeat(3,minmax(0,1fr))}}

.learner-lesson-navigation{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;margin:0 0 14px}.learner-lesson-navigation .btn{min-height:44px;width:auto;justify-self:start}.learner-lesson-navigation .btn:last-child{justify-self:end}.learner-lesson-navigation small{text-align:center;color:#456077;font-size:12px}.learner-lesson-gap{margin:-4px 0 14px;font-size:12px;color:#456077}@media(max-width:600px){.learner-lesson-navigation{gap:6px}.learner-lesson-navigation .btn{font-size:12px;padding:8px}.learner-lesson-navigation small{max-width:105px;font-size:11px}}

.learner-material-availability{margin:0 0 14px;font-size:12px;color:#456077}.learner-material-availability summary{cursor:pointer;padding:8px 0;line-height:1.5}.learner-material-availability p{margin:4px 0 8px;line-height:1.6}

.material-activity-position{margin:4px 0;font-size:12px;font-weight:700;color:#087e78;line-height:1.4;flex-shrink:0}.material-next-hint{display:block;margin:0 0 6px;color:#456077;font-size:12px;line-height:1.4;flex-shrink:0}.material-next-hint[hidden]{display:none}.material-pdf-reader .material-download-footer{flex-wrap:wrap}.material-pdf-reader .material-download-footer [hidden]{display:none}

.material-activity-help{font-size:12px;line-height:1.4;color:#456077;display:block;margin:0 0 4px;flex-shrink:0}.material-activity-help[hidden]{display:none}