*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--blue-dark: #1e3a5f;--blue-mid: #2c5f8a;--blue-soft: #5b8cbd;--blue-pale: #d6e6f5;--cream: #f4efe6;--sidebar-bg: #e3f0fa;--correct-green: #2e7d32;--correct-light: #e8f5e9;--wrong-red: #c62828;--wrong-light: #ffebee;--mustard: #f9a826;--warm-accent: #f9a826;--amber: #f59e0b;--amber-dk: #b45309}.nav-btn{width:100%;background:var(--cream);border:2px solid transparent;border-radius:60px;padding:16px 18px;font-family:Nunito,sans-serif;font-weight:800;font-size:1.1rem;color:var(--blue-dark);cursor:pointer;transition:all .17s ease;display:flex;align-items:center;gap:14px;box-shadow:0 2px 6px #0000000f;text-align:left}.nav-btn .num{width:34px;height:34px;border-radius:50%;background:#2c5f8a1a;display:flex;align-items:center;justify-content:center;font-size:.95rem;font-weight:900;color:var(--blue-dark);flex-shrink:0}.sidebar-foot{margin-top:auto;padding-top:20px;font-size:.9rem;font-weight:700;color:var(--blue-mid);display:flex;align-items:center;gap:6px;opacity:.8}.sec-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}.sec-sub{font-size:.85rem;font-weight:700;color:var(--blue-mid);display:block;margin-top:3px}.sec-subtitle{font-size:.9rem;color:#3e5a6b;font-weight:600;margin-top:4px;display:block}.single-image-card{background:#ffffffd9;border:2px solid rgba(44,95,138,.25);border-radius:32px;overflow:hidden;max-width:480px;width:100%;margin:0 auto 24px;transition:all .2s;cursor:pointer}.single-image-card 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li:before{content:"📄";position:absolute;left:0}.speech-btn{background:linear-gradient(135deg,#4a90e2,#2c5f8a);border:none;border-radius:60px;padding:12px 28px;color:#fff;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;gap:10px;transition:all .2s;margin-bottom:20px;box-shadow:0 4px 12px #00000026}.speech-btn:hover{transform:scale(1.02);background:linear-gradient(135deg,#5a9ef2,#3a6f9a)}.speech-btn.listening{background:linear-gradient(135deg,#e67e22,#d35400);animation:pulse 1s infinite}.speech-btn:active{transform:scale(.98)}.image-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:28px}.image-card{background:#ffffffd1;border-radius:24px;overflow:hidden;text-align:center;border:2.5px solid rgba(30,58,95,.15);box-shadow:0 4px 18px #1e3a5f1a;transition:all .22s;display:flex;flex-direction:column;cursor:pointer}.image-card:hover{transform:translateY(-6px);box-shadow:0 10px 32px #1e3a5f2e;border-color:var(--blue-soft)}.image-card 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#ffb347;font-weight:600;color:#3a2a1f}.pair-discussion p{margin-bottom:8px;font-size:1rem}.vocab-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-bottom:24px}.vocab-card{background:#ffffffd9;border:2px solid rgba(44,95,138,.25);border-radius:28px;padding:24px 16px;text-align:center;cursor:pointer;transition:all .25s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.vocab-card:hover{transform:translateY(-6px);background:#fff;border-color:var(--blue-soft);box-shadow:0 12px 28px #0000001f}.vocab-word{font-size:1.45rem;font-weight:800;color:var(--blue-dark);margin-top:14px}.vocab-meaning{font-size:.85rem;color:var(--blue-mid);margin-top:10px;display:none;line-height:1.45}.vocab-card.active .vocab-meaning{display:block}.vocab-card.active{background:linear-gradient(135deg,#e8f0f8,#d4e4f0);border-color:var(--blue-dark);transform:scale(1.02)}.vocab-image{width:130px;height:130px;margin:0 auto 14px;background-size:contain;background-repeat:no-repeat;background-position:center;border-radius:20px;transition:transform .2s;display:flex;align-items:center;justify-content:center;background-color:#f0f4f8}.vocab-card:hover .vocab-image{transform:scale(1.05)}.vocab-image img{width:160px;height:160px;object-fit:contain;border-radius:16px}.dialogue-box{background:#ffffffe6;border-radius:28px;padding:28px;display:flex;gap:28px;align-items:flex-start;flex-wrap:wrap;margin-bottom:20px}.char-col{display:flex;flex-direction:column;align-items:center;gap:24px;min-width:90px}.char-avatar{width:56px;height:56px;border-radius:50%;background:var(--cream);border:3px solid var(--blue-soft);display:flex;align-items:center;justify-content:center;font-size:2.2rem;box-shadow:0 4px 12px #00000017}.char-name{font-size:.9rem;font-weight:800;color:var(--blue-dark);text-align:center}.bubbles-col{flex:1;display:flex;flex-direction:column;gap:14px;min-width:220px}.bubble{border-radius:24px;padding:14px 22px;font-size:1rem;font-weight:600;line-height:1.5;max-width:84%;cursor:pointer;transition:all .2s ease;position:relative;border:2px solid transparent}.bubble:hover{transform:scale(1.02);filter:brightness(.98);box-shadow:0 4px 12px #0000001a}.bubble:active{transform:scale(.99)}.bubble .spk{display:block;font-size:.75rem;font-weight:900;text-transform:uppercase;letter-spacing:.5px;opacity:.52;margin-bottom:5px}.bubble.speaking{animation:pulse .5s ease-in-out 2;background:#ffe8b6;border-color:#ffa000}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.02);background:#fff3cd}to{transform:scale(1)}}.b-left{background:#e3f2fd;border:1.5px solid #90caf9;color:#0d47a1;border-bottom-left-radius:6px;align-self:flex-start}.b-right{background:#d6e6f5;border:1.5px solid #7dafe0;color:#1e3a5f;border-bottom-right-radius:6px;align-self:flex-end;text-align:right}.bubble.active-line{border-color:var(--blue-mid);box-shadow:0 0 0 3px #2c5f8a2e}.speaker-icon{display:inline-block;margin-left:8px;font-size:.8rem;opacity:.6;transition:opacity .2s}.bubble:hover .speaker-icon{opacity:1}.dialogue-play-bar{display:flex;align-items:center;gap:14px;background:#ffffffb3;border:1.5px solid rgba(30,58,95,.12);border-radius:60px;padding:12px 20px;margin-bottom:20px;flex-wrap:wrap}.btn-play-all{background:var(--blue-dark);border:none;border-radius:60px;padding:10px 24px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:.95rem;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 4px #0f2b44;transition:all .13s}.btn-play-all:active{transform:translateY(2px);box-shadow:0 2px #0f2b44}.btn-play-all:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-stop-all{background:#c0392b;border:none;border-radius:60px;padding:10px 20px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:.95rem;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 4px #7f2318;transition:all .13s}.btn-stop-all:active{transform:translateY(2px);box-shadow:0 2px #7f2318}.dialogue-status{font-size:.88rem;font-weight:700;color:var(--blue-mid);font-style:italic}.reading-text{background:#ffffffbf;border-radius:24px;padding:24px 28px;margin-bottom:24px;border:1px solid rgba(44,95,138,.2);line-height:1.7;font-size:1rem;color:#1a3a55}.activity-card{background:#ffffffb3;border-radius:24px;padding:20px 24px;margin-bottom:20px;border:1px solid rgba(44,95,138,.15)}.activity-title{font-size:1.2rem;font-weight:800;color:var(--blue-dark);margin-bottom:16px;display:flex;align-items:center;gap:10px;border-bottom:2px solid var(--blue-soft);padding-bottom:8px}.matching-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.col-a .match-item,.col-b .match-item{background:#fff9;padding:12px 16px;border-radius:16px;margin-bottom:12px;font-weight:600}.col-a .match-item{border-left:4px solid var(--blue-soft);cursor:pointer;transition:all .2s}.col-a .match-item.selected{background:var(--blue-pale);border-left-color:var(--blue-dark)}.col-a .match-item.matched{background:#c8e6c9;border-left-color:#2e7d32;cursor:default}.col-b .match-item{border-right:4px solid var(--blue-soft);cursor:pointer;transition:all .2s}.col-b .match-item.matched-correct{background:#c8e6c9;border-right-color:#2e7d32;opacity:.8;cursor:default;pointer-events:none}.reset-match-btn,.reset-tf-btn{background:var(--blue-soft);border:none;border-radius:40px;padding:8px 20px;color:#fff;font-weight:700;margin-top:12px;cursor:pointer;transition:.2s}.reset-match-btn:hover,.reset-tf-btn:hover{background:var(--blue-dark);transform:translateY(-2px)}.tf-grid{display:flex;flex-direction:column;gap:12px}.tf-item{background:#ffffffb3;border-radius:20px;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px;border:1px solid rgba(44,95,138,.2)}.tf-text{font-weight:700;color:var(--blue-dark);font-size:1rem;flex:1}.tf-buttons{display:flex;gap:12px}.tf-btn{padding:8px 24px;border-radius:40px;border:none;font-weight:800;font-size:.9rem;cursor:pointer;transition:all .15s ease}.tf-btn-true{background:#c8e6c9;color:#2e7d32}.tf-btn-false{background:#ffcdd2;color:#c62828}.tf-btn.selected-true{background:#2e7d32;color:#fff;box-shadow:0 2px 8px #2e7d324d}.tf-btn.selected-false{background:#c62828;color:#fff;box-shadow:0 2px 8px #c628284d}.tf-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.tf-btn:hover:not(:disabled){transform:translateY(-2px)}.song-box{background:linear-gradient(135deg,#fffde7,#fff9c4 80%);border:2px solid rgba(255,193,7,.3);border-radius:28px;padding:28px 32px;margin-bottom:0}.stanza{margin-bottom:16px;padding:12px 18px;background:#fff9;border-left:6px solid #ffc107;border-radius:16px}.poem-line{font-size:1.12rem;font-weight:600;color:#3e2c00;line-height:1.7}.song-author{text-align:right;font-style:italic;font-weight:700;color:var(--blue-mid);font-size:1rem;margin-top:12px}.audio-row{display:flex;align-items:center;gap:14px;margin-top:24px;flex-wrap:wrap}.btn-play{background:var(--blue-dark);border:none;border-radius:60px;padding:14px 32px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:1.05rem;cursor:pointer;display:flex;align-items:center;gap:10px;box-shadow:0 5px #0f2b44;transition:all .13s}.btn-play:active{transform:translateY(3px);box-shadow:0 2px #0f2b44}.btn-stop{background:#e74c3c;border:none;border-radius:60px;padding:14px 32px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:1.05rem;cursor:pointer;display:flex;align-items:center;gap:10px;box-shadow:0 5px #922b21;transition:all .13s}.btn-stop:active{transform:translateY(3px);box-shadow:0 2px #922b21}.audio-status{font-size:.95rem;font-weight:700;color:#6c757d;font-style:italic}.two-column-layout{display:flex;gap:28px;margin-bottom:24px;flex-wrap:wrap}.poem-column{flex:2;min-width:280px}.questions-column{flex:1.2;min-width:260px;display:flex;flex-direction:column;gap:20px}.q-side-card{background:#ffffffb3;border:2px solid rgba(30,58,95,.15);border-radius:24px;padding:20px 22px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:all .3s ease}.q-side-card.correct-answer{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);border-color:#2e7d32;box-shadow:0 4px 15px #2e7d3233}.q-side-card.wrong-answer{background:linear-gradient(135deg,#ffebee,#ffcdd2);border-color:#c62828;box-shadow:0 4px 15px #c6282833}.q-side-title{font-size:1.1rem;font-weight:900;color:var(--blue-dark);margin-bottom:18px;display:flex;align-items:center;gap:8px;border-bottom:2px solid var(--blue-soft);padding-bottom:10px}.quiz-side-grid{display:flex;flex-direction:column;gap:12px}.quiz-side-btn{width:100%;margin:0;padding:14px 18px;font-size:.98rem;font-weight:800;border-radius:40px;border:2px solid #b7d4e8;background:linear-gradient(90deg,#e9f2f9 60%,#f1f7fc);color:var(--blue-dark);box-shadow:0 2px 8px #1e3a5f12;cursor:pointer;transition:all .18s;outline:none;text-align:center;line-height:1.3}.quiz-side-btn:hover{background:linear-gradient(90deg,#d6e6f5 60%,#e9f2f9);border-color:#5b8cbd;color:#0f2b44;transform:translateY(-2px) scale(1.02)}.quiz-side-btn.correct{background:linear-gradient(90deg,#a5d6a7 60%,#81c784);border-color:#2e7d32;color:#1b5e20}.quiz-side-btn.wrong{background:linear-gradient(90deg,#ef9a9a 60%,#e57373);border-color:#c62828;color:#b71c1c;animation:shake .18s 1}.quiz-side-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.story-book{background:#ffffffbf;border-radius:28px;padding:36px 44px;border:2px solid rgba(30,58,95,.13);box-shadow:0 4px 24px #1e3a5f12;position:relative;overflow:hidden}.story-book:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(180deg,var(--blue-soft),var(--blue-dark));border-radius:28px 0 0 28px}.story-title{font-size:1.55rem;font-weight:900;color:var(--blue-dark);margin-bottom:24px;padding-bottom:14px;border-bottom:2px dashed rgba(30,58,95,.15);display:flex;align-items:center;gap:10px}.story-content{display:flex;gap:28px;flex-wrap:wrap}.story-text{flex:2;min-width:280px}.story-image-container{flex:1;min-width:200px;max-width:280px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start}.story-image-container img{width:100%;height:auto;border-radius:20px;box-shadow:0 8px 20px #0000001a;transition:transform .3s ease;object-fit:cover}.story-image-container img:hover{transform:scale(1.02)}.img-caption{margin-top:12px;font-size:.85rem;font-weight:600;color:var(--blue-mid);text-align:center;font-style:italic}.story-paragraph{font-size:1.08rem;font-weight:600;color:#2a3a4a;line-height:1.85;margin-bottom:16px;text-indent:2em;transition:background .2s;border-radius:8px;padding:4px 8px}.story-paragraph:first-of-type{text-indent:0}.story-paragraph:hover{background:#5b8cbd14}.story-source{margin-top:20px;font-size:.88rem;font-style:italic;color:var(--blue-mid);text-align:right;opacity:.7}.story-tts-bar{display:flex;align-items:center;gap:12px;background:#ffffffa6;border:1.5px solid rgba(30,58,95,.12);border-radius:60px;padding:10px 20px;margin-bottom:20px;flex-wrap:wrap}.btn-read-aloud{background:var(--blue-dark);border:none;border-radius:60px;padding:11px 28px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:1rem;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 4px #0f2b44;transition:all .13s}.btn-read-aloud:active{transform:translateY(2px);box-shadow:0 2px #0f2b44}.btn-read-aloud:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-stop-read{background:#e74c3c;border:none;border-radius:60px;padding:11px 28px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:1rem;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 4px #922b21;transition:all .13s}.btn-stop-read:active{transform:translateY(2px);box-shadow:0 2px #922b21}.story-status{font-size:.92rem;font-weight:700;color:var(--blue-mid);font-style:italic}.story-paragraph.reading-now{background:#ffc1072e;border-left:4px solid #ffc107;text-indent:0;padding-left:14px}.exercise-container{background:#ffffffbf;border-radius:28px;padding:28px 32px;margin-bottom:24px;border:2px solid rgba(30,58,95,.13)}.exercise-title{font-size:1.3rem;font-weight:900;color:var(--blue-dark);margin-bottom:24px;padding-bottom:12px;border-bottom:2px solid var(--blue-soft);display:flex;align-items:center;gap:10px}.question-item{margin-bottom:28px;padding:12px;border-radius:16px;background:#ffffff80}.question-item .question-text{font-weight:800;color:var(--blue-dark);margin-bottom:14px;font-size:1rem}.tf-row{display:flex;gap:16px;justify-content:flex-start}.option-btn{padding:12px 16px;border:2px solid #b7d4e8;border-radius:40px;background:linear-gradient(90deg,#e9f2f9,#f1f7fc);font-family:Nunito,sans-serif;font-weight:800;font-size:.95rem;color:var(--blue-dark);cursor:pointer;transition:all .2s;text-align:center}.tf-row .option-btn{min-width:120px;flex:0 1 auto}.option-btn:hover:not(:disabled){background:linear-gradient(90deg,#d6e6f5,#e9f2f9);transform:translateY(-2px)}.option-btn.correct{background:linear-gradient(90deg,#a5d6a7,#81c784);border-color:#2e7d32;color:#1b5e20}.option-btn.wrong{background:linear-gradient(90deg,#ef9a9a,#e57373);border-color:#c62828;color:#b71c1c;animation:shake .18s 1}.option-btn:disabled{opacity:.7;cursor:not-allowed}.exercise-nav{display:flex;justify-content:space-between;align-items:center;margin-top:24px;padding-top:20px;border-top:1.5px solid rgba(30,58,95,.1)}.nav-exercise-btn{background:var(--blue-dark);border:none;border-radius:60px;padding:12px 32px;color:#fff;font-weight:800;cursor:pointer;box-shadow:0 4px #0f2b44;transition:.13s}.nav-exercise-btn:active{transform:translateY(2px);box-shadow:0 2px #0f2b44}.nav-exercise-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.exercise-counter{font-weight:800;color:var(--blue-mid);background:#2c5f8a1a;padding:8px 18px;border-radius:40px}.fill-blank-input{border:2px solid #b7d4e8;border-radius:40px;padding:10px 18px;font-family:Nunito,sans-serif;font-weight:700;width:220px;margin-right:12px;background:#f4f9fe}.fill-feedback{margin-left:12px;font-size:.9rem;font-weight:700}.btn-check-fill{background:var(--blue-dark);border:none;border-radius:40px;padding:10px 24px;color:#fff;font-weight:800;cursor:pointer;box-shadow:0 3px #0f2b44;transition:.13s}.btn-check-fill:active{transform:translateY(2px)}.order-container{display:flex;flex-direction:column;gap:12px;margin:16px 0;background:#fff9;border-radius:20px;padding:16px}.order-item{background:#ffffffe6;border:2px solid #b7d4e8;border-radius:16px;padding:14px 18px;display:flex;align-items:center;gap:14px;cursor:grab;-webkit-user-select:none;user-select:none;transition:all .2s;font-size:1rem;font-weight:700;color:var(--blue-dark)}.order-item:active{cursor:grabbing}.order-item.dragging{opacity:.4;border-style:dashed}.order-item.drag-over{border-color:var(--blue-soft);background:#d6e6f5;transform:scale(1.01)}.order-handle{font-size:1.3rem;cursor:grab;opacity:.5;flex-shrink:0}.order-number{width:32px;height:32px;border-radius:50%;background:var(--blue-dark);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:.9rem;flex-shrink:0}.order-item.order-correct{border-color:#2e7d32;background:linear-gradient(90deg,#e8f5e9,#c8e6c9)}.order-item.order-wrong{border-color:#c62828;background:linear-gradient(90deg,#ffebee,#ffcdd2)}.btn-check-order{background:var(--blue-dark);border:none;border-radius:40px;padding:12px 32px;color:#fff;font-weight:800;cursor:pointer;box-shadow:0 4px #0f2b44;margin-top:8px;width:100%}.btn-check-order:active{transform:translateY(2px)}.order-feedback{margin-top:12px;font-weight:800;text-align:center;padding:10px;border-radius:40px}.open-textarea{width:100%;min-height:120px;border:2px solid #b7d4e8;border-radius:16px;padding:12px 16px;font-family:Nunito,sans-serif;font-weight:600;background:#f4f9fe;resize:vertical}.open-hint{background:#5b8cbd17;border-radius:12px;padding:10px 14px;margin-bottom:14px;font-style:italic;font-size:.9rem}.grammar-card{background:#ffffffbf;border-radius:28px;padding:28px;margin-bottom:28px}.sentence-item{background:#fef7e0;border-radius:60px;padding:14px 22px;margin-bottom:14px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-weight:600;font-size:1rem}.sentence-text{flex:1;font-size:1rem;line-height:1.5}.blank-slot{display:inline-block;min-width:110px;background:#fff2df;border-bottom:3px solid #f9a826;border-radius:30px;padding:4px 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.1s}.right-option:hover{background:#c8e6c9;transform:scale(1.02)}.right-option.selected-opt{background:#a5d6a7;border-color:#2e7d32;box-shadow:0 2px 8px #2e7d324d}.dialogue-line{background:#fff;border-radius:24px;padding:18px 24px;margin-bottom:16px;display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;border:1px solid rgba(30,58,95,.08)}.speaker-name{font-weight:900;background:var(--blue-dark);color:#fff!important;padding:6px 18px;border-radius:30px;font-size:.85rem;min-width:100px;text-align:center;flex-shrink:0}.line-text{flex:1;font-weight:600;line-height:1.8;word-break:break-word;font-size:1rem;color:#334e68}.inline-blank{display:inline-block;min-width:140px;background:#fffbf0;border:2px dashed #f9a826;border-radius:30px;padding:4px 16px;font-weight:800;color:#b45116;text-align:center;cursor:pointer;vertical-align:middle;margin:0 4px;transition:all .2s}.inline-blank:hover{background:#fff8e1;transform:scale(1.05)}.inline-blank.filled{background:#e8f5e9;border-color:#2e7d32;color:#1b5e20;border-style:solid}.inline-blank.wrong-attempt{background:#ffebee;border-color:#c62828;animation:shake .3s;border-style:solid}.noun-activity-wrap{display:flex;gap:20px;margin-bottom:20px;flex-wrap:wrap}.noun-drop-box{flex:1;min-width:220px;min-height:160px;border-radius:22px;padding:16px 18px;display:flex;flex-direction:column;gap:10px;transition:box-shadow .2s,transform .1s}.noun-drop-box.box-countable{background:#e8f5e9d9;border:2.5px dashed #2e7d32}.noun-drop-box.box-uncountable{background:#e3f2fdd9;border:2.5px dashed #1565c0}.noun-drop-box.drag-over{box-shadow:0 0 0 4px #ffa00073;transform:scale(1.015)}.drop-box-title{font-size:1rem;font-weight:900;margin-bottom:4px;display:flex;align-items:center;gap:8px}.box-countable .drop-box-title{color:#1b5e20}.box-uncountable .drop-box-title{color:#0d47a1}.drop-box-hint{font-size:.78rem;font-weight:700;opacity:.6;margin-bottom:6px}.drop-area{flex:1;min-height:90px;display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start;padding:8px 4px}.placed-chip{padding:6px 16px;border-radius:40px;font-weight:800;font-size:.9rem;animation:popIn .22s ease}.box-countable .placed-chip{background:#c8e6c9;color:#1b5e20;border:2px solid #2e7d32}.box-uncountable .placed-chip{background:#bbdefb;color:#0d47a1;border:2px solid #1565c0}@keyframes popIn{0%{transform:scale(.7);opacity:0}to{transform:scale(1);opacity:1}}.noun-word-pool{background:#ffffffb3;border:2px solid rgba(30,58,95,.1);border-radius:22px;padding:16px 20px;margin-bottom:20px}.noun-word-pool .pool-label{font-size:.8rem;font-weight:900;text-transform:uppercase;letter-spacing:1px;color:var(--blue-soft);margin-bottom:12px;display:block}.pool-words{display:flex;flex-wrap:wrap;gap:10px}.pool-word{padding:9px 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#1e3a5f21}.count-sentence-text{flex:1;line-height:1.6}.count-answer-badge{display:inline-block;padding:5px 18px;border-radius:30px;font-weight:900;font-size:.9rem}.badge-countable{background:#e8f5e9;color:#1b5e20;border:2px solid #2e7d32}.badge-uncountable{background:#e3f2fd;color:#0d47a1;border:2px solid #1565c0}.badge-wrong{background:#ffcdd2;color:#c62828;border:2px solid #c62828;animation:shake .22s ease-in-out 0s 2}.letter-box{background:#fffc;border-radius:24px;padding:20px;border:1px solid rgba(44,95,138,.15)}.letter-para{border-radius:14px;padding:12px 16px;margin-bottom:12px;cursor:pointer;transition:all .2s;border:2px solid transparent;white-space:pre-wrap;font-family:Georgia,serif;font-size:.95rem;line-height:1.6;background:#fef9e6}.letter-para:hover{background:#c8e6f04d;border-color:#2c5f8a33}.letter-para.active-para{background:#fff8b4b3;border-color:#ffb74d;box-shadow:0 2px 10px #ffb74d40}.prereading-box{background:#fffc;border:2px solid 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.2s}.table-row:hover{border-color:var(--blue-pale);transform:translate(2px)}.table-field-label{font-weight:900;background:#f4f6f8;color:var(--blue-dark);padding:10px 24px;border-radius:30px;font-size:.9rem;min-width:180px;text-align:center;flex-shrink:0;letter-spacing:.5px;text-transform:uppercase}.table-blank{display:inline-block;min-width:220px;background:#fffbf0;border:2px dashed #f9a826;border-radius:40px;padding:10px 30px;font-weight:800;color:#b45116;text-align:center;cursor:pointer;transition:all .25s cubic-bezier(.175,.885,.32,1.275);font-size:1.1rem;box-shadow:inset 0 2px 4px #00000008}.table-blank:hover{background:#fff8e1;border-color:#ffb74d;transform:scale(1.02);box-shadow:0 4px 12px #f9a82633}.table-blank.filled{background:#e8f5e9;border:2px solid #2e7d32;border-style:solid;color:#1b5e20;cursor:default;box-shadow:0 4px 12px #2e7d3233;animation:popIn .3s}.table-blank.wrong-attempt{background:#ffebee;border-color:#c62828;animation:shake .3s 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rotate(360deg);opacity:0}}.toast-msg{position:fixed;bottom:30px;left:50%;transform:translate(-50%);background-color:var(--blue-dark);color:#fff;padding:12px 28px;border-radius:60px;z-index:9999;font-weight:700;font-family:Nunito,sans-serif;font-size:1rem;white-space:nowrap;animation:slideUp .3s ease}.story-reset-btn{background:#f39c12;border:none;border-radius:60px;padding:11px 28px;color:#fff;font-family:Nunito,sans-serif;font-weight:800;font-size:1rem;cursor:pointer;margin-top:16px;box-shadow:0 4px #c07e0f;transition:all .13s;display:inline-block}.story-reset-btn:active{transform:translateY(2px);box-shadow:0 2px #c07e0f}.two-panel-exercise{display:flex;gap:28px;flex:1;min-height:0}.vocab-sentence{background:#fef7e0;border-radius:24px;padding:18px 22px;margin-bottom:18px;display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;font-weight:600;font-size:1rem;transition:.1s}.sentence-prefix{font-weight:900;background:var(--blue-dark);color:#fff;border-radius:40px;padding:6px 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16px;font-size:.92rem;font-weight:700;line-height:1.55;max-width:78%}.sc-txt.req{background:#e3f0fa;color:var(--blue-dark)}.sc-txt.resp{background:#e8f5e9;color:#1b5e20}.sc-lbl{font-size:.7rem;font-weight:900;opacity:.6;margin-bottom:3px}.group-badge-card{background:#fffae9;border-radius:60px;padding:12px 20px;margin-bottom:24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;border:1px solid #ffe2aa;box-shadow:0 2px 8px #00000008}.group-label{font-weight:900;color:var(--blue-dark);background:#e3ecf3;padding:6px 18px;border-radius:60px}.member-tag{display:flex;gap:6px;flex-wrap:wrap;font-size:.85rem;font-weight:700;color:#4b6f3b}.sections-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:1.5rem;margin:1rem 0 1.8rem}.section-card{background:#ffffffd9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:28px;border:1px solid rgba(255,255,255,.7);overflow:hidden;transition:.2s;box-shadow:0 6px 14px #0000000d}.section-header{background:#dceafa;padding:1rem 1.5rem;font-weight:800;font-size:1.2rem;border-bottom:2px solid var(--blue-pale);display:flex;gap:10px;align-items:center}.notice-block{padding:1rem 1.5rem;border-bottom:1px solid #ecf3e6}.nepali-text{background:#f1ede4;padding:10px;border-radius:20px;font-family:monospace;font-weight:600;margin-bottom:8px;color:#2b4f2b}.eng-trans{color:#1e5a5a;font-weight:700;margin:6px 0;font-size:.9rem;background:#fef4e8;padding:6px 12px;border-radius:30px;display:inline-block}.btn-collect{background:var(--blue-mid);border:none;border-radius:40px;padding:8px 16px;font-weight:800;color:#fff;cursor:pointer;margin-top:8px;transition:.15s;font-size:.8rem}.btn-collect:disabled{background:#b0c4de;cursor:default;transform:none}.btn-collect:not(:disabled):hover{background:#0f4c6b;transform:scale(.97)}.chart-panel{background:#fef7e8;border-radius:1.5rem;padding:1.2rem;margin-top:1.8rem;box-shadow:inset 0 0 0 1px #ffe1aa,0 5px 12px #0000000d}.collected-badge{background:#fff;border-radius:40px;padding:8px 16px;margin:8px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;border:1px solid #ecd9b4}.remove-req{background:#e2cfb3;border:none;border-radius:30px;padding:2px 12px;font-weight:700;cursor:pointer}.applicable-area{background:#f5f9ef;border-radius:24px;padding:18px;margin-top:20px}.applicable-item{background:#fff;border-radius:60px;margin:10px 0;padding:8px 16px;display:flex;align-items:center;gap:12px}.wallposter{background:#fffcf0;border-radius:1.8rem;border:3px dashed #aecf9e;padding:1.5rem;margin:1rem 0;text-align:center}.poster-header{background:#ffe2a4;padding:12px;border-radius:40px;font-weight:900;font-size:1.3rem}.poster-list{text-align:left;margin:16px 0;list-style-type:none}.poster-list li{background:#ecf5e6;margin:8px 0;padding:8px 16px;border-radius:40px}.btn-sticky{background:var(--blue-dark);border:none;border-radius:60px;padding:12px 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22px;font-weight:800;color:#b45116;text-align:center;cursor:pointer;transition:.2s;font-size:.95rem}.speaker-blank.filled{background:#e8f5e9;border:2px solid var(--correct-green);color:#1b5e20;border-style:solid}.speaker-blank.wrong-attempt{background:#ffebee;border-color:var(--wrong-red);animation:shake .3s}.sort-container{display:flex;gap:20px;flex-wrap:wrap;margin:20px 0}.sort-col{flex:1;background:#fff8ebb3;border-radius:28px;padding:18px;min-width:180px}.sort-col h4{font-weight:900;color:var(--blue-dark);border-bottom:2px solid var(--mustard);padding-bottom:8px;margin-bottom:14px}.expr-card-sort{background:#fff;border-radius:50px;padding:10px 16px;margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;gap:8px;font-weight:600;border:1px solid #ece0cf;box-shadow:0 1px 3px #0000000d}.expr-text-sm{flex:1;font-size:.85rem}.move-btns{display:flex;gap:6px}.icon-move{background:#e5d9ca;border:none;border-radius:30px;padding:4px 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rgba(0,0,0,.2))}@keyframes fallSmooth{0%{transform:translateY(-10vh) translate(0) rotate(0);opacity:1}to{transform:translateY(110vh) translate(var(--drift, 20px)) rotate(360deg);opacity:0}}.toast-msg{position:fixed;bottom:30px;left:50%;transform:translate(-50%);background-color:var(--blue-dark);color:#fff;padding:12px 28px;border-radius:60px;z-index:9999;font-weight:700;white-space:nowrap;animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translate(-50%,20px)}to{opacity:1;transform:translate(-50%)}}@media (max-width: 900px){body{height:auto;overflow:auto;align-items:flex-start}.blob{display:none}.canvas{flex-direction:column;width:100vw;height:auto;min-height:100vh;border-radius:0;border:none;max-width:100%}.sidebar{width:100%;flex-direction:row;flex-wrap:wrap;padding:18px 16px;gap:12px;border-right:none;border-bottom:1.5px solid rgba(30,58,95,.12);align-items:center}.sidebar-top{margin-bottom:0}.sidebar-foot{display:none}.nav-list{flex-direction:row;flex-wrap:wrap;flex:unset}.nav-btn{flex:1 1 auto;min-width:100px;font-size:.9rem;padding:10px 12px}.content-panel{padding:22px 20px;overflow-y:visible;max-height:none}.two-panel-wrap{flex-direction:column}.two-panel-right{position:relative;max-height:300px}}.speech-word.active-word{background-color:#ffeb3b;color:#1e3a5f;border-radius:4px;transition:background .05s linear}.highlight-word{cursor:pointer;text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px;background-color:#f9e45b;padding:0 4px;border-radius:12px}.highlight-word:hover{background-color:#ffc107}.syllables-intro{background:linear-gradient(135deg,#e8f0f8,#f4efe6);border-radius:24px;padding:18px 24px;margin-bottom:24px;font-weight:700;color:var(--blue-dark)}.rare-question-card{background:linear-gradient(135deg,#fff3e0,#ffe0b5);border-radius:28px;padding:24px;margin-bottom:28px;text-align:center;border:2px solid var(--mustard)}.rare-word{font-size:2rem;font-weight:900;color:var(--blue-dark);margin-bottom:16px}.rare-buttons{display:flex;gap:16px;justify-content:center;margin:16px 0}.syllable-answer-btn{background:var(--blue-dark);border:none;border-radius:60px;padding:12px 28px;color:#fff;font-weight:800;cursor:pointer;transition:all .2s}.syllable-answer-btn:hover{transform:translateY(-2px);background:var(--blue-mid)}.syllable-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px;margin:20px 0}.syllable-card{background:linear-gradient(135deg,#fff,#f0f4f8);border-radius:24px;padding:20px;text-align:center;cursor:pointer;transition:all .25s ease;border:1px solid rgba(124,185,232,.3)}.syllable-card:hover{transform:translateY(-5px);border-color:var(--blue-soft);box-shadow:0 12px 24px #0000001a}.syllable-card.speaking{background:#d4e8ff;transform:scale(.98)}.syllable-word{font-size:1.3rem;font-weight:800;color:var(--blue-dark);margin-bottom:8px}.syllable-example{font-size:.85rem;font-weight:600;color:var(--blue-mid);margin-bottom:10px}.syllable-hint{font-size:.7rem;color:var(--blue-soft);font-weight:600}.syllable-tip{background:#e8f0f8;border-radius:20px;padding:16px 20px;margin:20px 0;border-left:5px solid var(--mustard)}.section-title{font-size:1.1rem;font-weight:900;color:var(--blue-dark);margin-bottom:16px;padding-bottom:8px;border-bottom:2px solid var(--blue-soft)}