.science-cms .reading-author{--reading-accent:var(--accent,#3659cb);--reading-solid:#3659cb;--reading-ink:var(--fg,#1e2e4b);--reading-muted:var(--sub,#5d6d87);--reading-border:var(--border,#d4ddec);--reading-bg:var(--bg,#f4f6fc);--reading-panel:var(--panel,#fff);--reading-raised:var(--raised,#edf1fc);color:var(--reading-ink);margin-top:26px;min-width:0}
.concept-shell.labbench[data-lab-theme="dark"] .science-cms .reading-author,.lab-lesson[data-lab-theme="dark"] .science-cms .reading-author{--reading-accent:#a5b4fc}
.concept-shell.labbench[data-lab-theme="dark"] .science-cms .reading-dialog,.lab-lesson[data-lab-theme="dark"] .science-cms .reading-dialog{--bg:#111827;--fg:#edf2ff;--sub:#b4bfd3;--panel:#182235;--raised:#202d45;--border:#34415c}
.science-cms .reading-author [hidden]{display:none!important}
.science-cms .reading-author-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin:0 0 22px}
.science-cms .reading-author-heading h3{font-size:23px;letter-spacing:-.025em;margin:3px 0 7px;font-weight:600}
.science-cms .reading-author-heading p{font-size:13px;line-height:1.65;color:var(--reading-muted);margin:0}
.science-cms .reading-eyebrow{display:block;font-size:9px;font-weight:600;letter-spacing:.13em;color:var(--reading-muted);line-height:1.6}
.science-cms .reading-author button{font-size:12px;line-height:1.4;background:var(--panel,#fff);border-color:var(--reading-border);color:var(--reading-ink);padding:8px 11px;border-radius:7px}
.science-cms .reading-author button:hover{border-color:var(--reading-accent);background:var(--raised,#eef2fd)}
.science-cms .reading-author button:disabled{cursor:default;opacity:.4}
.science-cms .reading-author .reading-preview-button{flex:none;white-space:nowrap;padding:9px 12px;margin-top:8px}
.science-cms .reading-author .reading-preview-button[aria-pressed=true]{background:var(--reading-solid);border-color:var(--reading-solid);color:#fff}
.science-cms .reading-variants{display:flex;align-items:flex-end;gap:13px;flex-wrap:wrap;background:var(--panel,#fff);padding:15px 16px;border:1px solid var(--reading-border);border-radius:10px;margin-bottom:15px}
.science-cms .reading-variants>label{display:flex;flex-direction:column;gap:6px;font-size:11px;font-weight:500;color:var(--reading-muted);min-width:145px;flex:0 1 180px}
.science-cms .reading-variants select{font-size:13px;line-height:1.4;padding:9px 30px 9px 10px;width:100%;background:var(--bg,#f7f9fd);color:var(--reading-ink)}
.science-cms .reading-variant-description{margin-left:auto;align-self:center;font-size:11px;line-height:1.5;color:var(--reading-muted)}
.science-cms .reading-variant-note{display:flex;align-items:center;gap:14px;justify-content:space-between;background:var(--raised,#eef2fd);border:1px solid var(--reading-border);padding:12px 14px;font-size:12px;line-height:1.65;color:var(--reading-muted);border-radius:8px;margin-bottom:13px}
.science-cms .reading-variant-note button{flex:none;font-size:11px}
.science-cms .reading-workspace{background:var(--panel,#fff);border:1px solid var(--reading-border);border-radius:11px;overflow:hidden;box-shadow:0 2px 8px #1d335108}
.science-cms .reading-toolbar{display:flex;align-items:center;gap:5px;flex-wrap:wrap;padding:10px;border-bottom:1px solid var(--reading-border);background:var(--panel,#fff);position:relative;z-index:1}
.science-cms .reading-format-label{margin:0 4px 0 0;flex:none}
.science-cms .reading-format-label select{width:129px;font-size:12px;padding:7px 24px 7px 8px;line-height:1.4;border-color:var(--reading-border);background:var(--bg,#f6f8fc)}
.science-cms .reading-toolbar-group{display:flex;align-items:center;gap:3px;flex-wrap:wrap}
.science-cms .reading-toolbar .reading-toolbar-end{margin-left:auto;border-left:1px solid var(--reading-border);padding-left:8px}
.science-cms .reading-toolbar button{border:1px solid transparent;background:transparent;border-radius:5px;min-width:30px;padding:6px 7px;font-size:12px;line-height:1.5;text-align:center;white-space:nowrap}
.science-cms .reading-toolbar button[aria-pressed=true]{background:var(--raised,#eaf0ff);border-color:#a6b8ef;color:var(--reading-accent)}
.science-cms .reading-toolbar button strong{font-size:14px;font-weight:700}
.science-cms .reading-toolbar button em,.science-cms .reading-toolbar button u{font-size:14px}
.science-cms .reading-toolbar .reading-vocabulary-button{color:var(--reading-accent);font-weight:600;background:var(--raised,#eef2ff);border-color:var(--reading-border);padding-inline:10px}
.science-cms .reading-editor-pages{min-width:0}
.science-cms .reading-editor-page{min-width:0}
.science-cms .reading-document{min-height:380px;padding:30px clamp(20px,4vw,42px) 45px;outline:none;font-size:16px;line-height:1.9;overflow-wrap:anywhere;color:var(--reading-ink);max-height:780px;overflow-y:auto;overscroll-behavior:contain;white-space:pre-wrap}
.science-cms .reading-document:focus{box-shadow:inset 0 0 0 2px #3659cb45}
.science-cms .reading-document p{font-size:inherit;line-height:inherit;margin:0 0 17px}
.science-cms .reading-document>p:first-child:last-child:has(>.ProseMirror-trailingBreak)::before{content:attr(data-placeholder);content:'Start with a clear heading or an opening paragraph…';color:var(--reading-muted);opacity:.72;pointer-events:none;float:left;height:0;font-size:15px}
.science-cms .reading-document h2,.science-cms .reading-preview-content h2{font-size:25px;line-height:1.4;letter-spacing:-.025em;font-weight:600;margin:27px 0 13px}
.science-cms .reading-document h3,.science-cms .reading-preview-content h3{font-size:20px;line-height:1.45;letter-spacing:-.015em;font-weight:600;margin:24px 0 11px}
.science-cms .reading-document>h2:first-child,.science-cms .reading-document>h3:first-child{margin-top:0}
.science-cms .reading-document ul,.science-cms .reading-document ol,.science-cms .reading-preview-content ul,.science-cms .reading-preview-content ol{margin:15px 0 21px;padding-left:27px}
.science-cms .reading-document li,.science-cms .reading-preview-content li{padding-left:4px;margin:7px 0}
.science-cms .reading-document li>p,.science-cms .reading-preview-content li>p{margin-bottom:7px}
.science-cms .reading-document blockquote,.science-cms .reading-preview-content blockquote{border-left:3px solid #91a7e8;margin:22px 0;padding:4px 0 4px 20px;color:var(--reading-muted);font-style:normal}
.science-cms .reading-document blockquote p:last-child{margin-bottom:0}
.science-cms .reading-document strong,.science-cms .reading-preview-content strong{font-weight:700}
.science-cms .reading-document :is(sub,sup),.science-cms .reading-preview-content :is(sub,sup){font-size:.75em;line-height:0}
.science-cms .reading-document a,.science-cms .reading-preview-content a{color:var(--reading-accent);text-decoration:underline;text-underline-offset:3px;cursor:text}
.science-cms .reading-vocabulary-mark{color:var(--reading-accent);border-bottom:2px dotted #728bda;padding-bottom:1px;border-radius:1px;background:#3659cb09}
.science-cms .reading-editor-footer{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:12px 16px;border-top:1px solid var(--reading-border);color:var(--reading-muted);font-size:10px;line-height:1.6;background:var(--panel,#fff)}
.science-cms .reading-editor-footer strong{font-weight:600}
.science-cms [data-reading-count]{white-space:nowrap;font-variant-numeric:tabular-nums}
.science-cms .reading-formatted-preview{border:1px solid var(--reading-border);border-radius:10px;background:var(--panel,#fff);margin-top:17px;overflow:hidden}
.science-cms .reading-preview-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 17px;border-bottom:1px solid var(--reading-border);font-size:11px;color:var(--reading-muted);background:var(--raised,#eef2fd)}
.science-cms .reading-preview-content{padding:25px clamp(20px,4vw,42px) 30px;font-size:16px;line-height:1.9;overflow-wrap:anywhere}
.science-cms .reading-preview-content p{margin-bottom:17px;font-size:inherit;line-height:inherit}
.science-cms .reading-preview-empty{color:var(--reading-muted);font-size:14px!important;margin:10px 0!important}
.science-cms .reading-preview-content button{font:inherit;color:var(--reading-accent);padding:0 1px;border:0;border-bottom:2px dotted #728bda;border-radius:0;background:transparent;line-height:inherit}
.science-cms .reading-preview-vocabulary{border-top:1px solid var(--reading-border);margin-top:28px;padding-top:20px}
.science-cms .reading-preview-vocabulary h4{font-size:14px;font-weight:600;margin:0 0 15px}
.science-cms .reading-preview-vocabulary dl{margin:0;font-size:13px;line-height:1.75}
.science-cms .reading-preview-vocabulary dt{font-weight:600;color:var(--reading-accent);margin-top:13px}
.science-cms .reading-preview-vocabulary dd{margin:3px 0 0;color:var(--reading-muted)}
.science-cms .reading-glossary{background:var(--panel,#fff);border:1px solid var(--reading-border);border-radius:10px;margin-top:20px;padding:0 17px}
.science-cms .reading-glossary>summary{display:flex;align-items:center;gap:12px;cursor:pointer;font-size:13px;line-height:1.5;font-weight:600;padding:16px 0;list-style:none}
.science-cms .reading-glossary>summary::before{content:'›';font-size:20px;line-height:1;transform:rotate(0);transition:transform .12s ease;color:var(--reading-muted)}
.science-cms .reading-glossary[open]>summary::before{transform:rotate(90deg)}
.science-cms .reading-glossary>summary::-webkit-details-marker{display:none}
.science-cms .reading-glossary-count{margin-left:auto;border-radius:20px;background:var(--raised,#edf2fc);color:var(--reading-muted);padding:3px 9px;font-size:10px;line-height:1.6;font-weight:400}
.science-cms .reading-glossary-intro{display:flex;align-items:flex-start;gap:15px;justify-content:space-between;border-top:1px solid var(--reading-border);padding-top:15px;margin-bottom:15px}
.science-cms .reading-glossary-intro p{font-size:11px;line-height:1.75;margin:2px 0 0;color:var(--reading-muted)}
.science-cms .reading-glossary-intro button{flex:none;font-size:11px;padding:7px 10px}
.science-cms .reading-glossary-empty{font-size:12px;line-height:1.8;color:var(--reading-muted);margin:0 0 19px}
.science-cms .reading-term-list{list-style:none;margin:0;padding:0}
.science-cms .reading-term-list>li{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:17px 0;border-top:1px solid var(--reading-border)}
.science-cms .reading-term-list>li>div:first-child{min-width:0;overflow-wrap:anywhere}
.science-cms .reading-term-list strong{font-size:13px;font-weight:600;color:var(--reading-accent)}
.science-cms .reading-term-list p{font-size:12px;line-height:1.75;margin:5px 0 0;color:var(--reading-muted);white-space:pre-wrap}
.science-cms .reading-term-list .reading-term-plain{font-size:11px;margin-top:9px}
.science-cms .reading-term-plain>span{display:block;font-weight:600;font-size:9px;letter-spacing:.04em;text-transform:uppercase}
.science-cms .reading-term-actions{display:flex;gap:5px;flex:none;padding-top:2px}
.science-cms .reading-term-actions button{font-size:10px;padding:5px 8px}
.science-cms .reading-term-actions button:last-child{color:var(--reading-muted)}
.science-cms .reading-dialog{--bg:inherit;--fg:inherit;--sub:inherit;--panel:inherit;--raised:inherit;--border:inherit;--accent:inherit;--selected-ink:inherit;--button-ink:inherit;background:var(--reading-panel);color:var(--reading-ink);border:1px solid var(--reading-border);border-radius:15px;width:min(540px,calc(100vw - 32px));max-height:calc(100dvh - 50px);padding:26px;box-shadow:0 24px 90px #10204750;margin:auto;overflow:auto;overscroll-behavior:contain;color-scheme:inherit}
.science-cms .reading-dialog::backdrop{background:#0b183b75;backdrop-filter:blur(3px)}
.science-cms .reading-dialog-heading{display:flex;align-items:start;justify-content:space-between;gap:15px;margin-bottom:14px}
.science-cms .reading-dialog-heading h3{font-size:23px;margin:5px 0 0;line-height:1.35;letter-spacing:-.025em}
.science-cms .reading-dialog-heading>button{border:0;font-size:22px;padding:0 5px;line-height:1.1;color:var(--reading-muted);background:transparent}
.science-cms .reading-dialog .reading-dialog-hint{font-size:12px;line-height:1.8;color:var(--reading-muted);margin:0 0 22px}
.science-cms .reading-dialog-field{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:600;margin:16px 0;color:var(--reading-ink)}
.science-cms .reading-dialog-field>span{font-size:10px;font-weight:400;color:var(--reading-muted);margin-top:-5px}
.science-cms .reading-dialog-field input,.science-cms .reading-dialog-field textarea,.science-cms .reading-dialog-field select{font-size:14px;font-weight:400;padding:10px 12px;line-height:1.65;background:var(--reading-bg);color:var(--reading-ink);border-color:var(--reading-border)}
.science-cms .reading-dialog-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;border-top:1px solid var(--reading-border);padding-top:20px;margin-top:23px}
.science-cms .reading-dialog .reading-action-primary{background:var(--reading-solid);border-color:var(--reading-solid);color:#fff;font-weight:500;padding:10px 14px}
.science-cms .reading-dialog .reading-action-primary:hover{background:var(--reading-solid);filter:brightness(.95)}
.science-cms .reading-dialog .reading-dialog-error{border-left:3px solid #bd5262;color:var(--reading-ink);background:var(--bg,#f9f0f3);font-size:12px;padding:10px 13px;line-height:1.65;margin-top:15px}
.science-cms .reading-dialog .reading-unmark-button{font-size:11px;color:var(--reading-muted);margin-top:5px}
.science-cms .reading-link-selection{font-size:12px;line-height:1.7;background:var(--raised,#eef2fd);padding:11px 13px;border-radius:7px;color:var(--reading-muted);overflow-wrap:anywhere}
.science-cms .reading-sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.science-cms .reading-author.is-readonly .reading-document{background:var(--bg,#f5f7fb);color:var(--reading-muted)}
.science-cms .reading-check-card{border:1px solid var(--reading-border);background:var(--raised,#eef2fd);border-radius:10px;padding:19px 20px;margin:24px 0;white-space:normal;cursor:default;font-size:14px;line-height:1.65;overflow-wrap:anywhere}
.science-cms .reading-check-card.ProseMirror-selectednode{outline:2px solid var(--reading-accent);outline-offset:3px}
.science-cms .reading-check-card-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px}
.science-cms .reading-check-card-heading>div{display:flex;gap:5px;flex:none}
.science-cms .reading-check-card-heading button{font-size:10px;padding:5px 8px}
.science-cms .reading-check-card .reading-check-prompt{font-size:16px;line-height:1.65;font-weight:600;margin:0 0 15px;white-space:pre-wrap;color:var(--reading-ink)}
.science-cms .reading-check-card .reading-check-options{list-style:upper-alpha;margin:0;padding-left:23px;font-size:13px;line-height:1.65}
.science-cms .reading-check-options>li{padding-left:4px;margin:12px 0!important}
.science-cms .reading-check-options>li>span{white-space:pre-wrap}
.science-cms .reading-check-options small{display:inline-block;font-size:9px;font-weight:600;line-height:1.5;padding:2px 7px;margin-left:9px;border:1px solid var(--reading-border);border-radius:12px;background:var(--panel,#fff);color:var(--reading-accent);white-space:nowrap}
.science-cms .reading-check-options>li>p{font-size:11px;color:var(--reading-muted);margin:5px 0 0;white-space:pre-wrap;line-height:1.7}
.science-cms .reading-check-card-note{display:block;border-top:1px solid var(--reading-border);padding-top:12px;margin-top:17px;color:var(--reading-muted);font-size:10px;line-height:1.7}
.science-cms .reading-check-dialog{width:min(650px,calc(100vw - 32px))}
.science-cms .reading-check-choice{border:1px solid var(--reading-border);border-radius:9px;background:var(--reading-bg);padding:12px 16px;margin:20px 0;min-width:0}
.science-cms .reading-check-choice>legend{font-size:12px;font-weight:600;padding:0 6px;color:var(--reading-accent)}
.science-cms .reading-check-choice-controls{display:flex;align-items:center;justify-content:space-between;gap:15px}
.science-cms .reading-check-correct{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--reading-ink);cursor:pointer}
.science-cms .reading-check-correct input{display:inline-block;width:16px;height:16px;min-width:16px;min-height:0;padding:0;margin:0;accent-color:var(--reading-solid)}
.science-cms .reading-check-choice-controls button{font-size:10px;padding:5px 8px}
.science-cms .reading-check-choice .reading-dialog-field{margin:13px 0}
.science-cms .reading-check-choice .reading-dialog-field:last-child{margin-bottom:0}
.science-cms .reading-check-dialog-note{font-size:10px;line-height:1.7;color:var(--reading-muted);margin:12px 0 0}
.science-cms .reading-preview-content .rich-knowledge-check{background:var(--raised,#eef2fd);border:1px solid var(--reading-border);border-radius:10px;margin:26px 0;padding:20px}
.science-cms .reading-preview-content .rich-check-label{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--reading-accent);font-weight:600;margin-bottom:13px}
.science-cms .reading-preview-content .rich-knowledge-check fieldset{padding:0;margin:0;border:0;min-width:0}
.science-cms .reading-preview-content .rich-knowledge-check legend{font-size:16px;font-weight:600;line-height:1.65;padding:0;margin:0 0 17px;white-space:pre-wrap}
.science-cms .reading-preview-content .rich-knowledge-check fieldset>label{display:flex;align-items:flex-start;gap:11px;padding:11px 12px;border:1px solid var(--reading-border);border-radius:7px;background:var(--panel,#fff);margin:8px 0;font-size:13px;line-height:1.7;cursor:pointer}
.science-cms .reading-preview-content .rich-knowledge-check input{width:16px;min-width:16px;height:16px;min-height:0;padding:0;margin:3px 0 0;accent-color:var(--reading-solid)}
.science-cms .reading-preview-content .rich-check-feedback{font-size:13px;line-height:1.8;margin:16px 0 0;padding:12px 14px;border-left:3px solid var(--reading-accent);background:var(--panel,#fff);border-radius:0 7px 7px 0;white-space:pre-wrap}
.science-cms .reading-preview-content .rich-check-feedback:empty{display:none}
.science-cms .reading-preview-content .rich-check-note{font-size:10px;line-height:1.7;color:var(--reading-muted);margin:13px 0 0}
@media(max-width:1100px){.science-cms .reading-variant-description{flex-basis:100%;margin-left:0;font-size:10px}.science-cms .reading-toolbar .reading-toolbar-end{margin-left:0}.science-cms .reading-editor-footer{align-items:flex-start}}
@media(max-width:680px){.science-cms .reading-author-heading{flex-direction:column;gap:10px;margin-bottom:17px}.science-cms .reading-author .reading-preview-button{margin-top:0}.science-cms .reading-variants{gap:11px;padding:13px}.science-cms .reading-variants>label{flex:1;min-width:120px}.science-cms .reading-variant-note{align-items:flex-start;flex-direction:column;gap:10px}.science-cms .reading-document{min-height:340px;max-height:65vh;padding:23px 18px 35px;font-size:15px}.science-cms .reading-toolbar{padding:8px;gap:7px}.science-cms .reading-toolbar .reading-toolbar-end{border-left:0;padding-left:0}.science-cms .reading-editor-footer{font-size:9px;padding:10px 12px}.science-cms .reading-term-list>li{flex-direction:column;gap:11px}.science-cms .reading-term-actions{padding-top:0}.science-cms .reading-dialog{padding:20px}.science-cms .reading-dialog-heading h3{font-size:21px}.science-cms .reading-preview-content{padding:22px 18px;font-size:15px}}