.course-composer{grid-template-columns:minmax(0,1fr) 250px;align-items:start}.course-composer>form,.content-blocks,.block-writing{min-width:0}.composer-heading,.content-block-head,.preview-heading{display:flex;align-items:center;gap:12px;justify-content:space-between}.composer-heading h2{margin:8px 0 18px}.composer-counter{white-space:nowrap;color:#6c6680;font-size:13px}.content-block{border:1px solid #dfdce9;border-radius:14px;background:#fff;margin:18px 0;overflow:hidden;transition:box-shadow .15s}.content-block:focus-within{border-color:#9b8be7;box-shadow:0 0 0 3px #eee9ff}.content-block-head{background:#f7f6fa;padding:9px 12px;flex-wrap:wrap;border-bottom:1px solid #eae7f0}.block-kind{flex:1;min-width:90px}.block-kind select{border:0;background:transparent;padding:6px;font-size:14px;width:auto;max-width:100%}.block-index{font-size:11px;color:#8c879a}.block-grip{font-size:23px;color:#9791a8;cursor:grab}.block-actions{display:flex;gap:3px}.block-actions button,.rich-toolbar button,.preview-heading button{border:0;border-radius:6px;background:transparent;color:#514768;padding:6px 9px;cursor:pointer;font-size:14px}.block-actions button:hover,.rich-toolbar button:hover{background:#e7e0fc;color:#5836bf}.block-actions button:disabled{opacity:.3;cursor:default}.block-media,.content-block>[data-block-field='image video file code']{padding:16px}.block-media details{margin-top:14px}.block-media-preview{margin-top:12px;display:grid;gap:8px}.block-media-preview img,.block-media-preview video{display:block;width:auto;max-width:100%;max-height:340px;margin:auto;border-radius:9px}.block-text-source{font-family:Consolas,monospace!important;min-height:180px;border:0!important;border-radius:0!important;resize:vertical}.rich-toolbar{display:flex;flex-wrap:wrap;gap:2px;padding:8px 10px;border-bottom:1px solid #ebe8f1;background:#fcfbfe;position:sticky;top:0;z-index:2}.rich-toolbar button:first-child{font-weight:800}.rich-toolbar button:nth-child(2){font-style:italic}.rich-toolbar button:nth-child(3){text-decoration:underline}.rich-editor{min-height:150px;padding:20px 22px;outline:none}.rich-editor:empty:before{content:attr(data-placeholder);color:#9b94a9;pointer-events:none}.rich-content{font-size:17px;line-height:1.85;overflow-wrap:anywhere;white-space:normal}.rich-content p{margin:0 0 1em}.rich-content h2{font-size:26px;line-height:1.4;margin:1.1em 0 .5em}.rich-content h3{font-size:21px;margin:1em 0 .4em}.rich-content ul,.rich-content ol{padding-left:1.6em;margin:1em 0}.rich-content a{color:#7050c7;text-decoration:underline}.rich-content blockquote{border-left:4px solid #987fdf;background:#f7f4ff;margin:1em 0;padding:14px 20px;color:#5c4c79}.rich-content pre,.course-content pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#222337;color:#f1eefc;padding:20px;border-radius:12px}.rich-content code{font-family:Consolas,monospace}.rich-link-editor{display:flex;gap:8px;padding:10px;background:#f4f0fc}.rich-link-editor input{min-width:0}.insert-here{border:0;border-top:1px dashed #e5dff1;background:#fff;width:100%;color:#8b76b5;font-size:12px;padding:9px;cursor:pointer}.insert-here:hover{background:#f7f3ff;color:#604294}.block-palette{display:flex;gap:8px;align-items:center;flex-wrap:wrap;border:1px dashed #c9bcdf;border-radius:12px;background:#faf8fd;padding:14px;margin:16px 0}.block-palette>span{color:#8b809c;font-size:12px;margin-right:6px}.block-palette button{padding:8px 12px;border:1px solid #e0d8ed;border-radius:7px;background:#fff;color:#554366;cursor:pointer}.block-palette button:hover{border-color:#8e70d1;background:#ede5fd}.composer-status{font-size:13px;color:#675574;min-height:20px}.composer-status button{border:0;background:transparent;text-decoration:underline;color:#7050c7;cursor:pointer}.composer-ready .block-position,.composer-ready .block-delete-field{display:none}.content-block[hidden],[data-block-field][hidden],[data-block-upload][hidden],.rich-host[hidden],.block-text-source[hidden],.rich-link-editor[hidden]{display:none!important}.is-dragging{opacity:.45}.block-divider-sample{padding:24px}.course-content{display:grid;gap:22px;margin:25px 0 30px;min-width:0}.course-content figure{margin:0;min-width:0}.course-content img{display:block;max-width:100%;height:auto;margin:0 auto;border-radius:10px}.course-content video{width:100%;border-radius:12px;background:#171521}.course-content figcaption{font-size:13px;line-height:1.5;color:#837b90;text-align:center;margin-top:9px}.course-content hr{width:100%;border:0;border-top:1px solid #e8e2ef}.content-preview-dialog{border:0;border-radius:18px;padding:26px 32px;max-width:850px;width:calc(100% - 48px);max-height:88vh;box-shadow:0 24px 100px #20153844}.content-preview-dialog::backdrop{background:#19142b99;backdrop-filter:blur(3px)}.preview-heading{position:sticky;top:-26px;background:#fff;z-index:3;padding:12px 0;border-bottom:1px solid #eee}.preview-heading h2{font-size:20px}.preview-heading button{font-size:26px}.content-block .errorlist{padding:8px 18px;color:#ac354b}.content-block .source-label{display:block;padding:12px}.course-composer .editor-guide .button{width:100%}.course-composer .editor-guide{position:sticky;top:20px}.content-block input[type=file]{max-width:100%}
@media(max-width:1100px){.course-composer{grid-template-columns:minmax(0,1fr)}.course-composer .editor-guide{position:static;order:-1}.course-composer .editor-guide p,.course-composer .editor-guide hr,.course-composer .editor-guide>span,.course-composer .editor-guide h3{display:none}.course-composer .editor-guide{padding:12px}.course-composer .editor-guide .button{width:auto}}
@media(max-width:600px){.rich-editor{padding:16px;font-size:16px}.content-block-head{gap:6px;padding:8px}.block-actions button{padding:5px 7px}.block-palette{gap:6px;padding:10px}.block-palette button{padding:8px}.composer-heading{align-items:start}.content-preview-dialog{padding:16px;width:calc(100% - 20px)}.rich-toolbar button{padding:7px 9px}.rich-link-editor{flex-wrap:wrap}.rich-content h2{font-size:23px}.composer-counter{font-size:11px}.rich-content{font-size:16px}}
.source-label[hidden]{display:none!important}
.block-notebook-picker{padding:20px}.block-notebook-picker select{width:100%}.block-notebook-picker p{font-size:13px}