*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}.course-layout{grid-template-columns:minmax(260px,320px) 1fr;align-items:stretch;gap:.75rem;min-height:calc(100vh - 7rem);display:grid}.course-layout--tree-collapsed{grid-template-columns:48px 1fr}.tree-panel,.content-panel{min-height:420px}.tree-panel:not(.tree-panel--collapsed){flex-direction:column;min-height:0;display:flex}.tree-panel--collapsed{padding:0;overflow:hidden}.course-layout--tree-collapsed .craft-editor-shell,.course-layout--tree-collapsed .craft-canvas{min-height:min(78vh,820px)}.hierarchy-icon{width:18px;height:18px;display:block}.copy-from-tree{height:min(50vh,420px);min-height:280px}.lesson-viewer__title{margin:0 0 .75rem}.lesson-viewer__body table,.prose table{border-collapse:collapse;width:100%;margin:.75rem 0}.prose .lp-table--borders-full td,.prose .lp-table--borders-full th,.lesson-viewer__body .lp-table--borders-full td,.lesson-viewer__body .lp-table--borders-full th{border:1px solid #0000001f;padding:.45rem .6rem}.prose .lp-table--borders-header th,.lesson-viewer__body .lp-table--borders-header th{border-bottom:2px solid #0000001f;padding:.45rem .6rem}.prose .lp-table--borders-none td,.prose .lp-table--borders-none th,.lesson-viewer__body .lp-table--borders-none td,.lesson-viewer__body .lp-table--borders-none th{border:none;padding:.45rem .6rem}.prose .lp-cols,.lesson-viewer__body .lp-cols{flex-wrap:wrap;gap:1rem;margin:.75rem 0;display:flex}.prose .lp-col,.lesson-viewer__body .lp-col{flex:1;min-width:160px}@media (width<=640px){.prose .lp-cols,.lesson-viewer__body .lp-cols{flex-direction:column}}.lesson-editor--craft{margin-top:.75rem}.lesson-editor__hint{margin:0 0 .65rem}.craft-editor-shell{min-height:420px}.craft-toolbox__wrap{display:inline-flex}.craft-toolbox button,.craft-toolbox__item{-webkit-user-select:none;user-select:none;cursor:grab;color:#000000bf;background:#fff;border:1px solid #0000003b;border-radius:4px;justify-content:center;align-items:center;width:36px;height:36px;padding:0;display:inline-flex}.craft-toolbox__divider{background:#0000001f;width:1px;height:24px;margin:0 2px;display:inline-block}.craft-toolbox__item:hover{color:#00796b;background:#00796b0a;border-color:#00796b}.craft-toolbox__item:active{cursor:grabbing}html.craft-dnd-dragging,html.craft-dnd-dragging *,html.craft-toolbox-dragging,html.craft-toolbox-dragging *,html.craft-canvas-moving,html.craft-canvas-moving *{cursor:grabbing!important;-webkit-user-select:none!important;user-select:none!important}.craft-dnd-ghost,.craft-toolbox-ghost{z-index:10000;pointer-events:none;color:#fff;white-space:nowrap;background:#00796b;border-radius:4px;padding:.35rem .65rem;font:500 .8125rem/1.4 Roboto,Helvetica,Arial,sans-serif;position:fixed;top:0;left:0;box-shadow:0 2px 8px #00000040;cursor:grabbing!important}.craft-dnd-drop-target{outline-offset:2px;outline:2px solid #00796b8c!important}.craft-dnd-drop-target--empty{box-shadow:inset 0 0 0 2px dashed #00796b;background:#00796b1a!important;min-height:4.5rem!important}.craft-dnd-gap-before:before,.craft-dnd-gap-after:after{content:"";box-sizing:border-box;pointer-events:none;background:#00796b24;border:2px dashed #00796b;border-radius:4px;height:3.5rem;margin:.35rem 0;display:block}.craft-dnd-gap-before--row{box-shadow:inset 4.5rem 0 #00796b24;margin-left:4.5rem!important}.craft-dnd-gap-after--row{box-shadow:inset -4.5rem 0 #00796b24;margin-right:4.5rem!important}.craft-block--dragging{display:none!important}.craft-block__drag-handle{z-index:2;color:#0000008c;letter-spacing:-1px;cursor:grab;opacity:.85;background:#fff;border:1px solid #0000003b;border-radius:4px;justify-content:center;align-items:center;width:28px;height:28px;padding:0;font-size:14px;line-height:1;display:inline-flex;position:absolute;top:4px;right:4px}.craft-block__drag-handle:hover{opacity:1;color:#00796b;border-color:#00796b}.craft-block__drag-handle:active{cursor:grabbing}.craft-block--selected>.craft-block__drag-handle{opacity:1}.craft-block__empty-hint{color:#00000073;padding:1rem 1.25rem;font-size:13px}.craft-viewer .craft-block__drag-handle,.craft-viewer .craft-block__empty-hint{display:none!important}.craft-viewer .craft-block{cursor:default!important;outline:none!important}.craft-viewer .craft-block--section,.craft-viewer .craft-block--container{min-height:0!important;box-shadow:none!important;background:0 0!important;border:none!important}.craft-media-placeholder{text-align:center;color:#0009;background:#00796b0f;border:1px dashed #00796b73;border-radius:4px;padding:1.25rem 1rem;font-size:14px}.craft-viewer .craft-media-placeholder{display:none}.craft-canvas-drop{min-height:100%;position:relative}.craft-canvas-drop--over{outline-offset:2px;background:#00796b0f;border-radius:4px;outline:2px dashed #00796b}.craft-canvas-drop--busy{pointer-events:none;opacity:.85}.craft-canvas-drop__status{color:#000000b3;z-index:5;pointer-events:none;background:#ffffffb3;justify-content:center;align-items:center;font-size:14px;display:flex;position:absolute;inset:0}.craft-editor-shell .craft-canvas,.craft-editor-shell .craft-canvas *{-webkit-user-select:none;user-select:none}.lp-quote{background:#00796b14;border-left:4px solid #00796b;margin:1rem 0;padding:.75rem 1rem}.lp-divider{border:0;border-top:1px solid #0000001f;margin:1.25rem 0}.lp-image-placeholder{text-align:center;color:#0009;background:#f5f5f5;border:1px dashed #0000003b;border-radius:4px;padding:2rem 1rem}.lp-video{width:100%;margin:.75rem 0;padding-bottom:56.25%;position:relative}.lp-video iframe{border:0;border-radius:4px;width:100%;height:100%;position:absolute;inset:0}.lp-richtext{line-height:1.55}.messaging-root{min-height:calc(100vh - 5.5rem)}.chat-layout{grid-template-columns:minmax(220px,320px) 1fr;gap:.75rem;min-height:calc(100vh - 8rem);display:grid}.sidebar{min-height:420px}.sidebar-scroll{max-height:calc(100vh - 10rem);overflow:auto}.chat-pane{flex-direction:column;min-height:420px;display:flex}.messages{flex-direction:column;flex:1;gap:.55rem;min-height:240px;max-height:calc(100vh - 18rem);padding:.5rem 0;display:flex;overflow:auto}.bubble{background:#fff;border:1px solid #0000001f;border-radius:12px;align-self:flex-start;max-width:min(520px,85%);padding:.7rem .85rem}.bubble.mine{color:#fff;background:#00796b;border-color:#0000;align-self:flex-end}.bubble.mine .MuiTypography-colorTextSecondary,.bubble.mine .MuiTypography-caption{color:#ffffffd9}.bubble.deleted{opacity:.75}.composer{border-top:1px solid #0000001f;padding-top:.75rem}.audio-msg audio{max-width:100%}@media (width<=860px){.course-layout,.chat-layout,.course-layout--tree-collapsed{grid-template-columns:1fr}.tree-panel--collapsed{min-height:auto}.chat-layout.show-list .chat-pane,.chat-layout.show-chat .sidebar{display:none}.back-btn{display:inline-flex}}@media (width>=861px){.back-btn{display:none}}