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button.question-bank-course.expanded{background:var(--ui-accent-soft);color:var(--ui-accent)}.question-bank-course-count{color:var(--ui-faint);font-size:11px;font-weight:500}.question-bank-unit>button{padding-left:16px}.question-bank-empty{color:var(--ui-faint);padding:10px;font-size:13px}.list-menu-section-label{text-transform:uppercase;letter-spacing:.04em;color:var(--ui-faint);justify-content:space-between;align-items:center;padding:8px 10px 2px;font-size:11px;font-weight:600;display:flex}.list-menu-section-label:first-child{padding-top:2px}.list-menu-clear-range{text-transform:none;letter-spacing:normal;font-size:11px;font-weight:600;color:var(--ui-accent)!important;padding:2px 6px!important}.list-menu-items-row{flex-wrap:wrap;gap:4px;max-width:220px;padding:2px 10px 6px;display:flex}.list-menu-items-row button{text-align:center;flex:none;width:26px;height:26px;padding:0;border:1px solid var(--ui-line-soft)!important}.list-menu-row{align-items:center;gap:4px;padding:2px 10px 4px;display:flex}.list-menu-row button{text-align:center;flex:1;border:1px solid var(--ui-line-soft)!important}.list-menu-note{color:var(--ui-faint);padding:4px 10px 0;font-size:11px}.list-menu-spacing-value{text-align:center;color:var(--ui-muted);flex:2;font-size:12px}.modal-overlay{z-index:100;background:#14182173;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-panel{background:var(--ui-panel);border-radius:16px;width:340px;max-width:calc(100vw - 40px);max-height:calc(100vh - 60px);padding:20px;font-family:system-ui,sans-serif;overflow-y:auto;box-shadow:0 12px 40px #00000040}.field.field-choice{align-items:flex-start}.choice-list{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.choice-item{cursor:pointer;align-items:flex-start;gap:6px;font-size:13px;line-height:1.3;display:flex}.choice-item input{flex-shrink:0;margin-top:2px}.single-question .field-count{display:none}.modal-hint{color:var(--ui-muted);margin:0 0 12px;font-size:13px}.export-prompt-panel{width:480px}.export-prompt-text{color:var(--ui-muted);margin:0;font-size:13px}.export-prompt-panel .modal-actions{flex-wrap:wrap}.modal-panel h3{color:var(--ui-ink);margin:0 0 12px;font-size:15px}.modal-preview{color:#1f2430;background:#f4f5f7;border-radius:6px;justify-content:center;margin-bottom:12px;padding:10px;display:flex}.qb-preview{color:#1f2430;background:#f4f5f7;border-radius:6px;max-height:34vh;margin-bottom:12px;padding:10px 12px;font-family:Times New Roman,Times,serif;font-size:13px;overflow-y:auto}.qb-preview-instruction{margin:0 0 6px;font-family:system-ui,sans-serif}.qb-preview ol{margin:0 0 8px;padding-left:1.4em}.qb-preview li{margin:2px 0}.qb-preview-graphic{background:#fff;margin:4px 0;display:block}.qb-preview-table{border-collapse:collapse;background:#fff;margin:4px 0;font-size:12px}.qb-preview-table th,.qb-preview-table td{text-align:center;border:1px solid #ccd2db;padding:2px 8px}.static-equation{vertical-align:middle;display:inline-block}.static-equation .mq-math-mode{font-size:100%}.qb-preview .add-label-button{margin-top:0;font-family:system-ui,sans-serif}.block-config-form{flex-direction:column;gap:8px;display:flex}.block-field{color:var(--ui-ink);justify-content:space-between;align-items:center;gap:8px;font-size:13px;display:flex}.block-field input{border:1px solid var(--ui-line);border-radius:4px;width:140px;padding:5px 7px;font-size:13px}.config-float-option{color:var(--ui-muted);align-items:center;gap:6px;margin-top:12px;font-size:13px;display:flex}.modal-actions{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.field-group{border:1px solid var(--ui-line-soft);border-radius:8px;margin:0 0 12px;padding:10px 12px 14px}.field-group legend{text-transform:uppercase;letter-spacing:.04em;color:var(--ui-muted);padding:0 4px;font-size:11px;font-weight:600}.field{color:var(--ui-ink);justify-content:space-between;align-items:center;gap:8px;margin:8px 0;font-size:13px;display:flex}.rename-block-input{box-sizing:border-box;border:1px solid var(--ui-line);background:var(--ui-panel);border-radius:5px;width:100%;margin-bottom:4px;padding:7px 9px;font-size:14px}.rename-block-input:focus{border-color:var(--ui-accent);outline:none}.field input[type=number],.field input[type=text],.field select{border:1px solid var(--ui-line);background:var(--ui-panel);border-radius:4px;width:130px;padding:4px 6px;font-size:13px}.field-textarea{flex-direction:column;align-items:stretch}.field-textarea textarea{border:1px solid var(--ui-line);resize:vertical;border-radius:4px;padding:6px;font-family:inherit;font-size:13px}.field-hint{color:var(--ui-faint);margin:4px 0 0;font-size:11px}.field-hint.field-error{color:var(--ui-bad)}.field-checkbox{justify-content:flex-start}.field-checkbox input{order:-1;margin-right:8px}.field-color input{border:1px solid var(--ui-line);border-radius:4px;width:40px;height:26px;padding:0}.remove-label-button{border:1px solid var(--ui-line);background:var(--ui-panel);cursor:pointer;width:24px;height:24px;color:var(--ui-bad);border-radius:4px;flex-shrink:0;font-size:14px;line-height:1}.remove-label-button:hover{background:var(--ui-fill)}.add-label-button{background:var(--ui-fill);border:1px dashed var(--ui-line);cursor:pointer;border-radius:6px;width:100%;margin-top:4px;padding:6px;font-size:13px}.add-label-button:hover{background:var(--ui-fill-strong)}.line-item{border:1px solid var(--ui-line-soft);background:var(--ui-fill);border-radius:6px;margin:8px 0;padding:6px 8px}.plot-row{flex-wrap:wrap;align-items:center;gap:5px;margin:6px 0;display:flex}.plot-num{border:1px solid var(--ui-line);border-radius:4px;width:42px;min-width:0;padding:4px 5px;font-size:12px}.plot-arrow{color:var(--ui-faint);font-size:12px}.plot-row input[type=color]{border:1px solid var(--ui-line);border-radius:4px;flex-shrink:0;width:26px;height:24px;padding:0}.plot-label{border:1px solid var(--ui-line);border-radius:4px;flex:1;min-width:60px;padding:4px 6px;font-size:12px}.plot-extend-toggle{color:var(--ui-muted);white-space:nowrap;align-items:center;gap:4px;font-size:12px;display:flex}.plot-cap-label{color:var(--ui-muted);align-items:center;gap:4px;font-size:12px;display:flex}.plot-select{border:1px solid var(--ui-line);background:var(--ui-panel);border-radius:4px;padding:3px 4px;font-size:12px}.equation-modal-field{background:var(--ui-fill);border-radius:6px;justify-content:center;margin-bottom:12px;padding:14px 10px;display:flex}.equation-modal-field .mq-editable-field{border:1px solid var(--ui-line);background:var(--ui-panel);border-radius:4px;min-width:120px;padding:6px 8px;font-size:130%}.equation-palette{flex-wrap:wrap;gap:4px;margin-bottom:10px;display:flex}.equation-palette button{border:1px solid var(--ui-line);background:var(--ui-panel);min-width:34px;color:var(--ui-ink);cursor:pointer;border-radius:5px;padding:5px 8px;font-size:14px}.equation-palette button:hover{background:var(--ui-fill)}.equation-modal-field .mq-editable-field.mq-focused{border-color:var(--ui-accent);box-shadow:none}.library-panel{width:520px}.library-list{border:1px solid var(--ui-line-soft);border-radius:6px;max-height:50vh;margin:0;padding:0;list-style:none;overflow-y:auto}.library-row{border-bottom:1px solid var(--ui-line-soft);align-items:center;gap:4px;padding:2px 10px 2px 2px;display:flex}.library-row:last-child{border-bottom:none}.library-row-open{background:var(--ui-accent-soft)}.library-row-main{text-align:left;cursor:pointer;background:0 0;border:none;border-radius:4px;flex-direction:column;flex:1;align-items:flex-start;gap:1px;min-width:0;padding:7px 8px;display:flex}.library-row-main:hover:not(:disabled){background:var(--ui-fill)}.library-row-main:disabled{cursor:default}.library-title{text-overflow:ellipsis;white-space:nowrap;max-width:100%;color:var(--ui-ink);font-size:14px;font-weight:600;overflow:hidden}.library-meta{color:var(--ui-faint);font-size:12px}.library-delete{color:var(--ui-bad)}.custom-question-panel{width:640px}.cq-field{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.cq-label{color:var(--ui-ink);font-size:13px;font-weight:600}.cq-label-note{color:var(--ui-faint);font-weight:400}.cq-rich-row{align-items:flex-start;gap:8px;display:flex}.cq-rich{cursor:text;white-space:pre-wrap;overflow-wrap:anywhere;flex:1;min-height:1.6em;line-height:2}.cq-rich:empty:before{content:attr(data-placeholder);color:var(--ui-faint);pointer-events:none}.cq-insert-equation{border:1px solid var(--ui-line);background:var(--ui-fill);cursor:pointer;white-space:nowrap;border-radius:5px;flex:none;padding:6px 10px;font-size:13px}.cq-insert-equation:hover{background:var(--ui-fill-strong)}.cq-eq{vertical-align:middle;margin:0 2px;display:inline-block}.cq-eq .mq-editable-field{border:1px solid var(--ui-line);background:var(--ui-fill);border-radius:5px;min-width:1.6em;min-height:1.3em;padding:1px 6px;font-size:115%}.cq-eq .mq-editable-field.mq-focused{border-color:var(--ui-accent);box-shadow:none}.cq-object-place{color:var(--ui-muted);gap:16px;margin:6px 0 8px;font-size:12px;display:flex}.cq-object-place input{border:1px solid var(--ui-line);border-radius:4px;width:56px;margin:0 3px;padding:2px 4px}.cq-actions{background:var(--ui-panel);border-top:1px solid var(--ui-line-soft);align-items:center;margin:0 -20px -20px;padding:12px 20px;position:sticky;bottom:-20px}.cq-added{color:var(--ui-ok);margin-right:auto;font-size:12px}.cq-object-select{border:1px solid var(--ui-line);background:var(--ui-panel);border-radius:5px;align-self:flex-start;padding:6px 8px;font-size:13px}.cq-object-header{align-items:center;gap:12px;margin-bottom:8px;font-size:13px;display:flex}.cq-object-size{color:var(--ui-faint);flex:1}.cq-link-button{color:var(--ui-accent);cursor:pointer;background:0 0;border:none;padding:0 0 0 8px;font-size:13px}.cq-link-button:hover{text-decoration:underline}.cq-object-preview{box-sizing:content-box;background:#fff;border:1px solid #e2e5eb;border-radius:4px;margin-bottom:12px;padding:10px 0 14px;box-shadow:0 1px 4px #00000014}.cq-object-frame{display:inline-block;position:relative}.cq-object-frame .cq-resize-handle{display:block;bottom:-4px;right:-4px}.equation-node{vertical-align:middle;margin:0;display:inline-block}.pm-dragging-selection .equation-node{pointer-events:none}.equation-node .mq-editable-field{border:1px solid #0000;border-radius:3px;padding:0 1px}.equation-node .mq-editable-field:hover{background:#f7f8fc;border-color:#c9d0ee}.equation-node .mq-math-mode{font-size:100%}.equation-node .mq-editable-field.mq-focused{border-color:var(--ui-accent);box-shadow:none}.modal-actions button{cursor:pointer;border:1px solid var(--ui-line);background:var(--ui-panel);color:var(--ui-muted);border-radius:6px;padding:7px 14px;font-size:13px}.modal-actions .modal-confirm{background:var(--ui-accent);border-color:var(--ui-accent);color:var(--ui-accent-ink);font-weight:600}.ws-block{position:relative}.ws-block-problems{padding-left:26px}.ws-block-flash{animation:1.6s ease-out ws-block-flash}@keyframes ws-block-flash{0%,30%{background-color:#6c4cf524}to{background-color:#0000}}.ws-block-answers{font-size:10pt;line-height:1.25}.ws-block-answers p,.ws-block-answers ol,.ws-block-answers ul{margin:0 0 .3em}.ws-block-answers .static-graph{margin:.05in 0 .08in}.ws-block-toolbar{opacity:0;z-index:5;background:#ffffffeb;border-radius:4px;flex-direction:column;align-items:center;gap:2px;transition:opacity .12s;display:flex;position:absolute;top:2px;left:0}.ws-block:hover>.ws-block-toolbar{opacity:1}.ws-block-move-button{color:#99a0b3;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:3px 4px;font-size:10px;line-height:1}.ws-block-move-button:hover{color:#445;background:#eef0f4}.ws-block-menu{position:relative}.ws-block-menu-button{color:#99a0b3;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:2px 5px;font-size:15px;line-height:1}.ws-block-menu-button:hover{color:#445;background:#eef0f4}.ws-block-menu-dropdown{min-width:170px;left:0}.static-graph{max-width:100%;margin:.08in 0 .12in;display:inline-block;position:relative}.ProseMirror ol[data-column-count] .gated-list-item{padding-right:0}.ProseMirror ol[data-column-count]>.react-renderer.node-listItem{display:flex}.ProseMirror ol[data-column-count]>.react-renderer.node-listItem>li{min-width:0}.ProseMirror ol[data-column-count]>.react-renderer.node-listItem>li>[data-node-view-content]{flex-direction:column;height:100%;display:flex}.ProseMirror ol[data-column-count]>.react-renderer.node-listItem>li>[data-node-view-content]>[data-node-view-content-react]{flex-direction:column;flex:1;display:flex}.ProseMirror ol[data-column-count]>.react-renderer.node-listItem>li>[data-node-view-content]>[data-node-view-content-react]>.react-renderer.node-staticGraph{margin-top:auto}.static-graph-resize-handle{background:var(--ui-accent);cursor:nwse-resize;border:2px solid #fff;border-radius:3px;width:14px;height:14px;display:none;position:absolute;bottom:-6px;right:-6px}.static-graph:hover .static-graph-resize-handle{display:block}.static-graph-move-handle{background:var(--ui-accent);color:#fff;cursor:move;border:2px solid #fff;border-radius:3px;justify-content:center;align-items:center;width:16px;height:16px;font-size:9px;line-height:1;display:none;position:absolute;top:-6px;left:-6px}.static-graph:hover .static-graph-move-handle{display:flex}.gated-list-item{padding-right:90px;position:relative}.item-controls{opacity:0;gap:1px;transition:opacity .12s;display:flex;position:absolute;top:1px;right:2px}.gated-list-item:hover .item-controls{opacity:1}.item-regenerate-button,.item-options-button{color:#6b7287;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:3px 5px;font-size:16px;line-height:1}.item-object-menu{display:inline-block;position:relative}.item-object-menu-dropdown{min-width:170px}.item-regenerate-button:hover,.item-options-button:hover{color:#445;background:#eef0f4}.slideshow{z-index:3000;-webkit-user-select:none;user-select:none;background:#0b0d12;position:fixed;inset:0;overflow:hidden}.slideshow-idle{cursor:none}.slideshow-stage-frame{transform-origin:50%;cursor:pointer;position:absolute;top:50%;left:50%}.slide-stage{box-sizing:border-box;color:#111;width:1280px;height:720px;font-family:var(--worksheet-font,"Times New Roman", Times, serif);background:#fff;flex-direction:column;display:flex;position:relative;overflow:hidden}.slide-stage svg text{font-family:var(--worksheet-font,"Times New Roman", Times, serif)}.slide-head{color:#4a5168;flex:none;max-height:3.9em;padding:28px 64px 0;font-size:26px;font-weight:700;line-height:1.3;overflow:hidden}.slide-main{flex:1;gap:40px;min-height:0;padding:16px 64px 56px;display:flex}.slide-text-area{flex:1;min-width:0;position:relative;overflow:hidden}.slide-graph-panel{flex-direction:column;flex:none;justify-content:center;gap:16px;width:46%;min-height:0;display:flex}.slide-graph{flex:1;min-height:0}.slide-graph .static-graph{width:100%;height:100%;margin:0;display:block}.slide-graph svg{aspect-ratio:auto!important;width:100%!important;max-width:none!important;height:100%!important}.slide-stage .static-graph-resize-handle,.slide-stage .static-graph-move-handle,.slide-stage .item-controls{display:none}.slide-inner.ProseMirror{width:100%;height:100%;min-height:0;box-shadow:none;background:0 0;padding:0;line-height:1.4;position:relative}.slide-question,.slide-answer{transform-origin:0 0;position:absolute;left:0}.slide-question{align-items:baseline;gap:.4em;display:flex}.slide-number{color:#6c4cf5;flex:none;font-weight:700}.slide-body{flex:1;min-width:0}.slide-body p{margin:0 0 .4em}.slide-answer{color:#4a2fc4;border-top:2px solid #c9d2f5;padding-top:.5em}.slide-answer-label{letter-spacing:.08em;text-transform:uppercase;color:#6b7287;font-size:.55em;font-weight:700;display:block}.slide-foot{color:#9aa1b2;font-family:system-ui,sans-serif;font-size:18px;position:absolute;bottom:18px;right:28px}.slideshow-bar{color:#e6e9f2;z-index:1;background:#1f2430f0;border-radius:12px;align-items:center;gap:8px;padding:8px 12px;font:14px system-ui,sans-serif;transition:opacity .25s;display:flex;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}.slideshow-idle .slideshow-bar{opacity:0;pointer-events:none}.slideshow-bar button{color:inherit;font:inherit;white-space:nowrap;cursor:pointer;background:#2f3547;border:none;border-radius:8px;padding:7px 12px}.slideshow-bar button:hover:not(:disabled){background:#3d4560}.slideshow-bar button:disabled{opacity:.4;cursor:default}.slideshow-bar button.active{background:var(--ui-accent)}.slideshow-count{text-align:center;min-width:56px}.slideshow-divider{background:#4a5168;width:1px;height:22px}.slideshow-check{cursor:pointer;align-items:center;gap:4px;display:flex}.slideshow-pdf{position:relative}.slideshow-pdf-menu{white-space:nowrap;background:#1f2430fa;border-radius:10px;flex-direction:column;gap:4px;padding:6px;display:flex;position:absolute;bottom:calc(100% + 10px);left:0}.slideshow-pdf-menu button{text-align:left}.slide-inner .slide-body table{table-layout:auto;width:auto}.slide-inner .slide-body td,.slide-inner .slide-body th{white-space:nowrap;padding:.1em .7em .1em 0}.help-button{width:28px;padding:0;font-weight:700}.shortcuts-panel{width:460px}.shortcuts-panel h4{color:var(--ui-muted);margin:14px 0 6px;font-size:13px}.shortcut-row{align-items:baseline;gap:12px;padding:3px 0;font-size:14px;display:flex}.shortcut-row kbd{color:var(--ui-ink);flex:0 0 150px;font:600 12px/1.4 ui-monospace,Menlo,monospace}.shortcuts-tips{margin:0;padding-left:18px;font-size:14px;line-height:1.5}.toolbar{border-bottom:1px solid var(--ui-line-soft)}.sidebar{border-right:1px solid var(--ui-line-soft)}.toolbar-wordmark{color:var(--ui-ink);letter-spacing:-.03em;margin-right:6px;font-size:1.25rem;font-weight:800;text-decoration:none}.toolbar-wordmark span{background:linear-gradient(var(--ui-chrome), var(--ui-chrome)) padding-box, linear-gradient(135deg, #ff6b57, #6c4cf5) border-box;color:#0000;vertical-align:-.02em;border:.17em solid #0000;border-radius:50%;width:.62em;height:.62em;margin-right:.04em;display:inline-block;overflow:hidden}.toolbar button:hover,.sidebar button:hover{border-color:var(--ui-accent)}.toolbar button.active,.sidebar button.active{box-shadow:0 2px #0000002e}.export-button{box-shadow:0 3px #0003}.theme-button svg{display:block}:root[data-theme=dark] .theme-button .icon-sun,:root:not([data-theme=dark]) .theme-button .icon-moon{display:none}