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#rw-quiz-slider{display:flex;gap:0;will-change:transform}.b2-writing-lesson #rw-quiz-slider .quiz-question{flex:0 0 100%;max-width:100%;box-sizing:border-box;margin:0}.hidden{display:none!important}.essay-tab{padding:.5rem .75rem;border:1px solid #e5e5e5;border-bottom:none;background:#fafafa;border-radius:.5rem .5rem 0 0;cursor:pointer}.essay-tab.tab-active{background:#fff;color:#172830;font-weight:700;border-color:#e5e5e5}.mission-card-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.mission-card{display:flex;flex-direction:column;align-items:center;gap:.25rem;padding:1rem;border:1px solid #e5e5e5;border-radius:.75rem;box-shadow:0 1px 3px rgb(0 0 0 / .06);cursor:pointer;transition:transform .08s ease}.mission-card:hover{transform:translateY(-1px)}.mission-card .icon{font-size:1.75rem}// --- Global matching game polyfill (used by Article Writing too) --- window.initMatchingGame=window.initMatchingGame || function (root,pairs){if (!root || !Array.isArray(pairs)) return;const termsWrap=root.querySelector('.game-terms');const defsWrap=root.querySelector('.game-definitions');const feedback=root.querySelector('.game-feedback');if (!termsWrap || !defsWrap) return;const shuffle=(a)=>{a=a.slice();for(let i=a.length-1;i>0;i--){const j=(Math.random()*(i+1))|0;[a[i],a[j]]=[a[j],a[i]]}return a};termsWrap.innerHTML='';defsWrap.innerHTML='';if (feedback) feedback.textContent='';const t=shuffle(pairs),d=shuffle(pairs);t.forEach(p=>{const b=document.createElement('button');b.type='button';b.className='game-item term';b.dataset.key=p.term;b.textContent=p.term;termsWrap.appendChild(b)});d.forEach(p=>{const b=document.createElement('button');b.type='button';b.className='game-item def';b.dataset.key=p.term;b.textContent=p.definition;defsWrap.appendChild(b)});let pickT=null,pickD=null;root.addEventListener('click',(e)=>{const term=e.target.closest('.term'),def=e.target.closest('.def');if (term && !term.classList.contains('matched')){termsWrap.querySelectorAll('.term').forEach(x=>x.style.borderColor='transparent');term.style.borderColor='#3b82f6';pickT=term}if (def && !def.classList.contains('matched')){defsWrap.querySelectorAll('.def').forEach(x=>x.style.borderColor='transparent');def.style.borderColor='#3b82f6';pickD=def}if (pickT && pickD){const ok=pickT.dataset.key===pickD.dataset.key;if (ok){[pickT,pickD].forEach(x=>{x.classList.add('matched');x.style.borderColor='#596c10';x.style.background='#c7c79d40'});if (feedback){feedback.textContent='Correct!';feedback.style.color='#596c10'}}else{if (feedback){feedback.textContent='Try again!';feedback.style.color='#b91c1c'}setTimeout(()=>{if(pickT) pickT.style.borderColor='transparent';if(pickD) pickD.style.borderColor='transparent'},650)}pickT=pickD=null;const done=root.querySelectorAll('.game-item.matched').length/2;if (feedback && done===pairs.length) feedback.textContent='You matched them all!'}})};.lesson-container 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.quiz-next:disabled{cursor:not-allowed!important;opacity:0.5!important}.lesson-container .hint-btn:empty,.lesson-container .hint-btn[style*="display:none"],.lesson-container .hint-btn:where([data-has-hint="0"]){display:none!important}.lesson-container .quiz-frame{min-height:220px!important}.lesson-container .quiz-frame .quiz-question[style*="opacity: 1"]{position:relative!important}.lesson-container .quiz-frame .quiz-question[style*="opacity: 0"]{position:absolute!important}.lesson-container .quiz-frame{transition:min-height 0.25s ease,height 0.25s ease}.lesson-container .quiz-question[style*="opacity: 1"]{transition:opacity 0.25s ease,height 0.25s ease,margin 0.25s ease}.lesson-container .feedback{transition:opacity 0.25s ease}.lesson-container .feedback:not(:empty){opacity:1}.lesson-container .feedback:empty{opacity:0}.lesson-container .hint-text{display:none;background:#fffef9;border-left:4px solid #f4d488;border:1px solid #e5e7eb;border-radius:.5rem;padding:.9rem 1rem;margin-top:.6rem;box-shadow:0 3px 8px rgb(0 0 0 / .06);font-size:1rem;color:#172830;line-height:1.6}.lesson-container .hint-text::before{content:"💡 Hint";display:block;font-weight:700;color:#596c10;margin-bottom:.25rem}.lesson-container .hint-btn{background:#fff;border:1px solid #dcdcdc;color:#27537a;border-radius:6px;padding:.25rem .75rem;font-weight:600;font-size:.9rem;cursor:pointer;transition:all 0.2s ease}.lesson-container .hint-btn:hover{background:#f4f7fa;border-color:#cfd8e3}.option-feedback{color:#172830;line-height:1.4;background:#f9fafb;border-left:3px solid #f4d488;padding:.35rem .6rem;border-radius:.4rem}.lesson-container{--c1:#27537a;--c2:#596c10;--ink:#172830;--muted:#6b7280}.lesson-container .btn{background:var(--c1);color:#fff;border:0;padding:.6rem 1rem;border-radius:.75rem;font-weight:700;box-shadow:0 1px 2px rgb(0 0 0 / .06);transition:filter .15s,opacity .15s;cursor:pointer}.lesson-container .btn:hover{filter:brightness(1.05)}.lesson-container .btn[disabled]{background:#9bb7ca;color:#fff;opacity:.7;cursor:not-allowed}.article-writing-lesson #hook-matcher .columns,.dialogue-writing-lesson #dlg-matching .columns,.b2-writing-lesson #rw-matching .columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1rem;background:#fff;border:1px solid #e5e7eb;border-radius:.75rem;padding:1rem;box-shadow:0 2px 6px rgb(0 0 0 / .06)}.article-writing-lesson #hook-matcher .columns>*,.dialogue-writing-lesson #dlg-matching .columns>*,.b2-writing-lesson #rw-matching .columns>*{min-width:0}.article-writing-lesson #hook-matcher .columns h4,.dialogue-writing-lesson #dlg-matching .columns h4,.b2-writing-lesson #rw-matching .columns h4{text-align:center;color:var(--muted);font-weight:800;margin:0 0 .5rem}.article-writing-lesson #hook-matcher .game-item,.dialogue-writing-lesson #dlg-matching .game-item,.b2-writing-lesson #rw-matching .game-item{display:block;width:100%;box-sizing:border-box;padding:.7rem 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#cbd5e1;border-radius:50%;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:12px;gap:8px}.lesson-container .venn-left{left:2%;width:54%;background:rgb(147 197 253 / .12)}.lesson-container .venn-right{right:2%;width:54%;background:rgb(134 239 172 / .12)}.lesson-container .venn-both{left:26%;width:48%;z-index:3;border-style:solid;background:rgb(253 224 71 / .12)}.lesson-container .venn-zone.over{box-shadow:0 0 0 3px rgb(39 83 122 / .18) inset}.lesson-container .venn-list{display:flex;flex-wrap:wrap;gap:.5rem;align-content:flex-start;justify-content:center;width:100%}.lesson-container .venn-caption{margin-top:auto;text-align:center;line-height:1.1}.lesson-container .venn-caption span{font-weight:800;color:#0f2636;display:block}.lesson-container .venn-caption small{color:#334155;opacity:.8}.lesson-container .venn-pool{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}.lesson-container .venn-pool::before{content:"Drag these into 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