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.5s ease}.progress-stats{display:flex;font-size:.75rem;gap:12px}.progress-percentage{color:#43a047;color:var(--si-brand)}.progress-score{color:#28a745;font-weight:600}.progress-errors{color:#dc3545;font-weight:600}.progress-not-started{color:#999;font-weight:500}.quiz-arrow{color:#43a047;color:var(--si-brand);flex-shrink:0;font-size:1.5rem}.no-quizzes{color:#666;padding:40px 20px;text-align:center}.screen-header{align-items:center;background:#e0e5ec;border:none;box-shadow:0 4px 8px #a3b1c666,0 -2px 4px #ffffff80;display:flex;justify-content:space-between;min-height:60px;padding:16px 20px;position:-webkit-sticky;position:sticky;top:0;z-index:100}.ad-banner-visible .screen-header{top:90px;top:var(--ad-banner-height,90px);z-index:2000}.header-btn{align-items:center;background:#e0e5ec;border:none;border-radius:50%;box-shadow:6px 6px 12px #a3b1c699,-6px -6px 12px #ffffff80;color:#1a202c;cursor:pointer;display:flex;font-size:20px;height:44px;justify-content:center;line-height:1;padding:0;text-align:center;transition:all .3s cubic-bezier(.4,0,.2,1);width:44px}.header-btn:hover{box-shadow:8px 8px 16px #a3b1c6b3,-8px -8px 16px #fff9;color:#43a047;color:var(--si-brand);transform:scale(1.05)}.header-btn:active{box-shadow:inset 4px 4px 8px #a3b1c699,inset -4px -4px 8px #ffffff80;transform:scale(.95)}.back-btn,.settings-btn{color:#1a202c}.header-btn-placeholder{flex-shrink:0;height:40px;width:40px}.header-center{align-items:center;display:flex;flex:1 1;justify-content:center}.screen-header h1{color:#1a202c;font-size:1.6rem;font-weight:700;letter-spacing:.5px;margin:0;text-align:center;text-shadow:1px 1px 2px #fffc}.levels-screen{background:#e0e5ec;min-height:100vh}.levels-container{display:flex;flex-direction:column;gap:20px;padding:20px 20px 100px}.no-levels{color:#2d3748;font-size:1rem;font-weight:600;padding:60px 20px;text-align:center}.level-card,.quiz-card{animation:fadeInCard .4s ease-out}@keyframes fadeInCard{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.level-card{background:#e0e5ec;border:none;border-radius:20px;box-shadow:8px 8px 16px #a3b1c699,-8px -8px 16px #ffffff80;cursor:pointer;padding:20px;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1)}.level-card:active{box-shadow:inset 4px 4px 8px #a3b1c699,inset -4px -4px 8px #ffffff80;transform:scale(.98)}.level-card:hover{box-shadow:12px 12px 24px #a3b1c6b3,-12px -12px 24px #fff9;transform:translateY(-2px)}.level-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:18px}.level-badge{background:#e0e5ec;border:none;border-radius:20px;box-shadow:4px 4px 8px #a3b1c680,-4px -4px 8px #ffffff80;color:#43a047;color:var(--si-brand);font-size:.9rem;font-weight:700;letter-spacing:.5px;padding:7px 14px}.level-status{color:#22c55e;font-size:.85rem;font-weight:700;letter-spacing:.3px;text-shadow:1px 1px 2px #fffc}.audio-btn{align-items:center;background:#4caf50;border:none;border-radius:50%;box-shadow:0 2px 8px #4caf504d;color:#fff;cursor:pointer;display:flex;flex-shrink:0;font-size:14px;height:32px;justify-content:center;transition:all .2s ease;width:32px}.audio-btn:hover{background:#45a049;box-shadow:0 4px 12px #4caf5066;transform:scale(1.05)}.audio-btn:active{transform:scale(.95)}.audio-btn.small{font-size:12px;height:28px;width:28px}.audio-btn.large{font-size:16px;height:36px;width:36px}.quiz-title-row{align-items:center;display:flex;gap:8px;justify-content:space-between}.quiz-title-row .quiz-title{flex:1 1;margin:0}.level-title-row{align-items:center;display:flex;gap:8px;justify-content:space-between;margin-bottom:8px}.level-title-row h3{flex:1 1;margin:0}.question-text-row{align-items:flex-start;display:flex;gap:12px;justify-content:space-between}.question-text-row h2{flex:1 1;margin:0}.option-text-row{align-items:center;display:flex;flex:1 1;gap:8px;justify-content:space-between}.option-text-row .option-text-new{flex:1 1}.lesson-title-row{align-items:center;display:flex;gap:12px;justify-content:space-between;margin-bottom:20px}.lesson-title-row h2{flex:1 1;margin:0}.italian-text-row{align-items:center;display:flex;gap:12px;justify-content:space-between}.italian-text-row .italian-text{flex:1 1}.clickable-word{cursor:pointer}.clickable-word:focus{border-radius:4px;outline:2px solid #4caf50;outline-offset:2px}.error-boundary-screen{align-items:center;background:linear-gradient(135deg,#43a047,#2e7d32);background:linear-gradient(135deg,var(--si-brand) 0,var(--si-brand-deep) 100%);display:flex;justify-content:center;min-height:100vh;padding:20px}.error-boundary-content{background:#fff;border-radius:16px;box-shadow:0 10px 40px #0003;max-width:500px;padding:40px;text-align:center}.error-boundary-content .error-icon{font-size:64px;margin-bottom:20px}.error-boundary-content h1{color:#333;font-size:24px;margin-bottom:16px}.error-boundary-content .error-message{color:#666;line-height:1.6;margin-bottom:24px}.error-boundary-content .error-details{background:#f5f5f5;border-radius:8px;margin-bottom:24px;padding:16px;text-align:left}.error-boundary-content .error-details summary{color:#666;cursor:pointer;font-weight:600;margin-bottom:8px}.error-boundary-content .error-details pre{color:#dc3545;font-size:12px;margin-top:8px;overflow-x:auto}.error-boundary-content .error-actions{display:flex;gap:12px;justify-content:center}.error-boundary-content .btn-primary,.error-boundary-content .btn-secondary{border:none;border-radius:8px;cursor:pointer;font-weight:600;padding:12px 24px;transition:all .2s ease}.error-boundary-content .btn-primary{background:#4caf50;color:#fff}.error-boundary-content .btn-primary:hover{background:#45a049;transform:translateY(-2px)}.error-boundary-content .btn-secondary{background:#f5f5f5;color:#333}.error-boundary-content .btn-secondary:hover{background:#e0e0e0}.error-screen{align-items:center;background:#f6f8f6;background:var(--si-surface);display:flex;justify-content:center;min-height:100vh;padding:20px}.error-content{background:#fff;border-radius:16px;box-shadow:0 4px 20px #0000001a;max-width:400px;padding:40px;text-align:center}.error-content .error-icon{font-size:48px;margin-bottom:16px}.error-content h2{color:#333;font-size:18px;margin-bottom:12px}.error-content p{color:#666;font-size:14px}.share-modal-overlay{align-items:center;animation:fadeIn .2s ease;background:#000000b3;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:10000}.share-modal-content{animation:slideUp .3s ease;background:#fff;border-radius:16px;max-width:500px;padding:30px;position:relative;width:100%}.share-modal-close{align-items:center;background:#f5f5f5;border:none;border-radius:50%;cursor:pointer;display:flex;font-size:24px;height:32px;justify-content:center;position:absolute;right:15px;top:15px;transition:all .2s ease;width:32px}.share-modal-close:hover{background:#e0e0e0;transform:rotate(90deg)}.share-modal-content h3{color:#333;font-size:20px;margin:0 0 16px}.share-text-preview{background:#f6f8f6;background:var(--si-surface);border:2px dashed #4caf50;border-radius:8px;color:#333;cursor:pointer;font-size:14px;line-height:1.5;margin-bottom:8px;padding:12px;transition:all .2s ease;-webkit-user-select:all;user-select:all}.share-text-preview:hover{background:#e8f5e9;border-color:#45a049}.share-instruction{color:#4caf50;font-size:12px;font-weight:600;margin-bottom:20px;text-align:center}.share-buttons{grid-gap:12px;display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}.share-btn{align-items:center;background:#fff;border:2px solid #e0e0e0;border-radius:12px;color:#333;cursor:pointer;display:flex;font-weight:600;gap:8px;justify-content:center;padding:12px 16px;text-decoration:none;transition:all .2s ease}.share-btn:hover{box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.share-btn.facebook{border-color:#1877f2;color:#1877f2}.share-btn.facebook:hover{background:#1877f2;color:#fff}.share-btn.twitter{border-color:#1da1f2;color:#1da1f2}.share-btn.twitter:hover{background:#1da1f2;color:#fff}.share-btn.whatsapp{border-color:#25d366;color:#25d366}.share-btn.whatsapp:hover{background:#25d366;color:#fff}.share-btn.telegram{border-color:#08c;color:#08c}.share-btn.telegram:hover{background:#08c;color:#fff}.share-btn.linkedin{border-color:#0a66c2;color:#0a66c2}.share-btn.linkedin:hover{background:#0a66c2;color:#fff}.share-btn.copy{border-color:#666;color:#666}.share-btn.copy:hover{background:#666;color:#fff}.share-icon{font-size:20px}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.level-content h3{color:#1a202c;font-size:1.3rem;font-weight:700;letter-spacing:.3px;margin-bottom:10px;text-shadow:1px 1px 2px #fffc}.level-content p{color:#2d3748;font-size:.95rem;font-weight:500;line-height:1.6;margin-bottom:18px}.level-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}.level-meta .meta-item{background:#e0e5ec;border:none;border-radius:12px;box-shadow:inset 2px 2px 4px #a3b1c666,inset -2px -2px 4px #ffffff80;color:#43a047;color:var(--si-brand);font-size:.85rem;font-weight:700;padding:7px 14px;transition:all .2s ease}.level-meta .meta-item:active{box-shadow:inset 3px 3px 6px #a3b1c680,inset -3px -3px 6px #fff6}.level-progress{align-items:center;display:flex;flex-wrap:wrap;gap:12px}.level-progress .progress-bar{background:#e0e5ec;border:none;border-radius:10px;box-shadow:inset 3px 3px 6px #a3b1c699,inset -3px -3px 6px #ffffff80;flex:1 1;height:10px;min-width:100px;overflow:hidden;position:relative}.level-progress .progress-fill{background:linear-gradient(135deg,#4ade80,#22c55e);border-radius:10px;box-shadow:2px 2px 4px #22c55e66,-1px -1px 2px #ffffff4d;height:100%;position:relative;transition:width .4s cubic-bezier(.4,0,.2,1)}.level-progress .progress-fill:after{background:linear-gradient(90deg,#0000,#ffffff4d 50%,#0000);border-radius:10px;bottom:0;content:"";left:0;position:absolute;right:0;top:0}.progress-bar{background:#e1e5e9;border-radius:3px;height:6px}.progress-fill{background:linear-gradient(135deg,#43a047,#2e7d32);background:linear-gradient(135deg,var(--si-brand) 0,var(--si-brand-deep) 100%);transition:width .3s ease}.progress-text{color:#666;font-size:.8rem}.level-card .progress-text{color:#1a202c;font-size:.9rem;font-weight:700;letter-spacing:.3px;text-shadow:1px 1px 2px #fffc;white-space:nowrap}.level-arrow{color:#43a047;color:var(--si-brand);font-size:1.2rem;position:absolute;right:20px;top:50%;transform:translateY(-50%)}.chapters-screen{background:#e0e5ec;min-height:100vh}.level-info{background:#e0e5ec;border:none;border-radius:20px;box-shadow:8px 8px 16px #a3b1c699,-8px -8px 16px #ffffff80;margin:20px;padding:24px;position:relative;text-align:center}.level-info:before{background:linear-gradient(135deg,#43a0471a,#2e7d321a);border-radius:20px;bottom:0;content:"";left:0;opacity:.6;pointer-events:none;position:absolute;right:0;top:0}.level-info p{color:#1a202c;font-size:1.25rem;font-weight:700;letter-spacing:.5px;margin:0;position:relative;text-shadow:1px 1px 2px #fffc;z-index:1}.chapters-container{display:flex;flex-direction:column;gap:20px;padding:0 20px 100px}.chapter-card{align-items:center;background:#e0e5ec;border:none;border-radius:20px;box-shadow:8px 8px 16px #a3b1c699,-8px -8px 16px #ffffff80;cursor:pointer;display:flex;padding:20px;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1)}.chapter-card:active{box-shadow:inset 4px 4px 8px #a3b1c699,inset -4px -4px 8px #ffffff80;transform:scale(.98)}.chapter-card:hover{box-shadow:12px 12px 24px #a3b1c6b3,-12px -12px 24px #fff9;transform:translateY(-2px)}.chapter-number{align-items:center;background:#e0e5ec;border:none;border-radius:50%;box-shadow:6px 6px 12px #a3b1c699,-6px -6px 12px #ffffff80;color:#43a047;color:var(--si-brand);display:flex;flex-shrink:0;font-size:1.25rem;font-weight:700;height:50px;justify-content:center;margin-right:18px;transition:all .3s ease;width:50px}.chapter-card:hover .chapter-number{box-shadow:8px 8px 16px #a3b1c6b3,-8px -8px 16px #fff9;transform:scale(1.05)}.chapter-content{flex:1 1}.chapter-content h3{color:#1a202c;font-size:1.25rem;font-weight:700;letter-spacing:.3px;margin-bottom:8px;text-shadow:1px 1px 2px #fffc}.chapter-description{color:#2d3748;font-size:.95rem;font-weight:500;line-height:1.6;margin-bottom:12px}.chapter-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}.chapter-meta .meta-item{background:#e0e5ec;border:none;border-radius:12px;box-shadow:inset 2px 2px 4px #a3b1c666,inset -2px -2px 4px #ffffff80;color:#43a047;color:var(--si-brand);font-size:.85rem;font-weight:700;padding:7px 14px;transition:all .2s ease}.chapter-meta .meta-item:active{box-shadow:inset 3px 3px 6px #a3b1c680,inset -3px -3px 6px #fff6}.chapter-progress-bar{align-items:center;display:flex;gap:12px}.chapter-progress-bar .progress-bar{background:#e0e5ec;border:none;border-radius:10px;box-shadow:inset 3px 3px 6px #a3b1c699,inset -3px -3px 6px #ffffff80;flex:1 1;height:10px;overflow:hidden;position:relative}.chapter-progress-bar .progress-fill{background:linear-gradient(135deg,#43a047,#2e7d32);background:linear-gradient(135deg,var(--si-brand) 0,var(--si-brand-deep) 100%);border-radius:10px;box-shadow:2px 2px 4px #43a04766,-1px -1px 2px #ffffff4d;height:100%;position:relative;transition:width .4s cubic-bezier(.4,0,.2,1)}.chapter-progress-bar .progress-fill:after{background:linear-gradient(90deg,#0000,#ffffff4d 50%,#0000);border-radius:10px;bottom:0;content:"";left:0;position:absolute;right:0;top:0}.progress-percentage{color:#1a202c;font-size:.95rem;min-width:45px;text-align:right}.chapter-arrow,.progress-percentage{font-weight:700;text-shadow:1px 1px 2px #fffc}.chapter-arrow{color:#43a047;color:var(--si-brand);flex-shrink:0;font-size:1.6rem;margin-left:15px;transition:all .3s cubic-bezier(.4,0,.2,1)}.chapter-card:hover .chapter-arrow{color:#2e7d32;color:var(--si-brand-deep);transform:translateX(6px) scale(1.1)}.chapter-progress{align-items:center;display:flex;gap:10px;margin-top:8px}.chapter-progress .progress-text{color:#2c3e50;font-size:.85rem;font-weight:600}.progress-dots{display:flex;gap:5px}.dot{background:#e1e5e9;border-radius:50%;height:8px;width:8px}.dot.completed{background:#28a745}.chapter-status{margin-left:15px}.status-dot{border-radius:50%;height:12px;width:12px}.status-dot.available{background:#28a745}.lesson-screen{background:#e0e5ec;display:flex;flex-direction:column;min-height:100vh;padding-bottom:100px}.lesson-screen .lesson-content{box-sizing:border-box;flex:1 1;margin:0 auto;max-width:700px;padding:20px;width:100%}.lesson-header-section{background:#e0e5ec;border:none;border-radius:20px;box-shadow:8px 8px 16px #a3b1c699,-8px -8px 16px #ffffff80;margin-bottom:25px;padding:20px}.lesson-badge{background:#e0e5ec;border:none;border-radius:12px;box-shadow:inset 3px 3px 6px #a3b1c680,inset -3px -3px 6px #fff9;color:#43a047;color:var(--si-brand);display:inline-block;font-size:.85rem;font-weight:700;letter-spacing:.5px;margin-bottom:12px;padding:8px 16px;text-transform:uppercase}.lesson-content h2{color:#1a202c;font-size:1.5rem;font-weight:700;letter-spacing:.2px;line-height:1.4;margin-bottom:0;text-shadow:1px 1px 2px #fffc}.lesson-text{background:#e0e5ec;border:none;border-radius:20px;box-shadow:8px 8px 16px #a3b1c699,-8px -8px 16px #ffffff80;box-sizing:border-box;padding:24px;width:100%}.content-section,.lesson-text{margin-bottom:25px}.lesson-description{color:#1a202c;font-size:1.05rem;font-weight:500;line-height:1.8}.lesson-example{margin:25px 0}.lesson-example h4{color:#1a202c;font-size:1.15rem;font-weight:700;letter-spacing:.2px;margin-bottom:12px;text-shadow:1px 1px 2px #fffc}.example-card{background:#e0e5ec;border:none;border-left:4px solid #43a047;border-left:4px solid var(--si-brand);border-radius:16px;box-shadow:inset 4px 4px 8px #a3b1c666,inset -4px -4px 8px #ffffff80;padding:18px}.italian-text{color:#1a202c;font-size:1.2rem;font-weight:700;letter-spacing:.3px;margin-bottom:10px;text-shadow:1px 1px 2px #fffc}.english-text{color:#666;font-style:italic}.lesson-tip{align-items:flex-start;background:#fff3cd;border-radius:10px;display:flex;margin-top:20px;padding:15px}.tip-icon{font-size:1.2rem;margin-right:10px}.tip-text{color:#856404;font-size:.9rem}.lesson-actions{margin-top:35px;padding:0 20px;text-align:center}.btn-large{align-items:center;display:inline-flex;font-size:1.15rem;font-weight:700;gap:12px;justify-content:center;letter-spacing:.4px;padding:18px 40px}.btn-large .arrow{font-size:1.4rem;font-weight:700;transition:transform .3s ease}.btn-large:hover .arrow{transform:translateX(6px)}.quiz-screen-old{background:#f6f8f6;background:var(--si-surface);padding-bottom:80px}.quiz-progress{box-shadow:0 2px 10px #0000000d;margin-bottom:20px;padding:20px}.quiz-content{margin:0 auto;max-width:600px;padding-top:20px}.question-card{background:#fff;border-radius:20px;box-shadow:0 8px 25px #00000014;margin-bottom:25px;padding:30px}.question-card h3{color:#333;font-size:1.3rem;font-weight:600;line-height:1.6;margin-bottom:30px}.answer-options{display:flex;flex-direction:column;gap:12px;margin-bottom:25px}.answer-option{align-items:center;background:#fff;border:3px solid #e1e5e9;border-radius:15px;cursor:pointer;display:flex;overflow:hidden;padding:18px 20px;position:relative;text-align:left;transition:all .3s ease}.answer-option:before{background:#43a0470d;content:"";height:100%;left:0;position:absolute;top:0;transition:width .3s ease;width:0;z-index:0}.answer-option:hover:before{width:100%}.answer-option:hover{box-shadow:0 5px 15px #43a04733;transform:translateY(-2px)}.answer-option.selected,.answer-option:hover{border-color:#43a047;border-color:var(--si-brand)}.answer-option.selected{background:#f8f9ff;box-shadow:0 5px 15px #43a04726}.answer-option.correct{background:#d4edda;border-color:#28a745;box-shadow:0 5px 15px #28a74533}.answer-option.incorrect{background:#f8d7da;border-color:#dc3545;box-shadow:0 5px 15px #dc354533}.option-letter{align-items:center;background:#43a047;background:var(--si-brand);border-radius:50%;box-shadow:0 2px 8px #43a0474d;color:#fff;display:flex;flex-shrink:0;font-size:.9rem;font-weight:700;height:35px;justify-content:center;margin-right:15px;position:relative;width:35px;z-index:1}.answer-option.correct .option-letter{background:#28a745;box-shadow:0 2px 8px #28a7454d}.answer-option.incorrect .option-letter{background:#dc3545;box-shadow:0 2px 8px #dc35454d}.option-text{color:#333;flex:1 1;font-size:1.05rem;font-weight:500;position:relative;z-index:1}.result-icon{font-size:1.2rem;font-weight:700}.explanation{background:#f6f8f6;background:var(--si-surface);border-radius:10px;margin-top:20px;padding:15px}.explanation-header{margin-bottom:10px}.result{font-size:1.1rem;font-weight:600}.result.correct{color:#28a745}.result.incorrect{color:#dc3545}.no-questions,.quiz-actions{text-align:center}.no-questions{padding:40px 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12px;width:72px}.profile-info-section{position:relative;z-index:1}.profile-edit-input{background:#e0e5ec;border:none;border-radius:12px;box-shadow:inset 4px 4px 8px #a3b1c680,inset -4px -4px 8px #ffffffb3;color:#1a1a1a;font-size:1rem;font-weight:600;padding:12px 16px;text-align:center;transition:all .3s ease;width:100%}.profile-edit-input:focus{box-shadow:inset 4px 4px 8px #a3b1c680,inset -4px -4px 8px #ffffffb3,0 0 0 3px #43a0474d;outline:none}.profile-edit-input::placeholder{color:#888}.profile-edit-buttons{display:flex;gap:8px;justify-content:center;margin-top:12px}.profile-save-btn{background:#e0e5ec;border:none;border-radius:12px;box-shadow:6px 6px 12px #a3b1c699,-6px -6px 12px #fffc;color:#6b46c1;cursor:pointer;font-size:.9rem;font-weight:600;padding:10px 20px;transition:all .3s ease}.profile-save-btn:hover:not(:disabled){box-shadow:8px 8px 16px #a3b1c6b3,-8px -8px 16px #ffffffe6;transform:translateY(-2px)}.profile-save-btn:active:not(:disabled){box-shadow:inset 4px 4px 8px 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.btn-arrow{font-size:1.2rem;opacity:.7}.edit-profile-btn{background:#fff3;border:1px solid #ffffff4d;border-radius:20px;color:#fff;cursor:pointer;font-size:.85rem;font-weight:500;margin-top:10px;padding:8px 16px;transition:all .3s ease}.edit-profile-btn:hover{background:#ffffff4d;transform:translateY(-2px)}.edit-profile-form{margin:15px 0;width:100%}.edit-name-input{background:#ffffff26;border:2px solid #ffffff4d;border-radius:12px;color:#fff;margin-bottom:12px;padding:12px 16px;text-align:center}.edit-name-input,.edit-name-input-settings{box-sizing:border-box;font-size:1rem;width:100%}.edit-name-input-settings{background:#fff;border:2px solid #6b46c1;border-radius:8px;color:#1a1a1a;font-weight:600;margin-bottom:8px;padding:10px}.edit-name-input::placeholder{color:#fff9}.edit-name-input:focus{background:#fff3;border-color:#ffffff80;outline:none}.edit-actions{display:flex;gap:10px;justify-content:center}.btn-cancel,.btn-save{border:none;border-radius:20px;cursor:pointer;font-size:.9rem;font-weight:600;padding:10px 24px;transition:all .3s ease}.btn-save{background:#fff;color:#43a047;color:var(--si-brand)}.btn-save:hover{box-shadow:0 4px 12px #ffffff4d;transform:translateY(-2px)}.btn-save:disabled{cursor:not-allowed;opacity:.6}.btn-cancel{background:#fff3;border:1px solid #ffffff4d;color:#fff}.btn-cancel:hover{background:#ffffff4d}.btn-cancel:disabled{cursor:not-allowed;opacity:.6}.profile-message{animation:slideIn .3s ease-out;border-radius:10px;font-size:.85rem;font-weight:500;margin-top:12px;padding:10px 16px}.profile-message.success{background:#4caf504d;border:1px solid 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2px 8px #43a0474d;color:#fff;display:flex;font-size:1.1rem;font-weight:700;height:42px;justify-content:center;transition:transform .2s ease,box-shadow .2s ease;width:42px}.home-screen .user-avatar-home .avatar-home:hover{box-shadow:0 4px 14px #43a04766;transform:scale(1.06)}.home-screen .user-greeting-home{align-items:center;display:flex;flex:1 1}.home-screen .user-name-text{color:#1a1a1a;font-size:1.05rem;font-weight:700;letter-spacing:-.2px;margin:0}.home-screen .trophy-btn{align-items:center;animation:none;background:#fff8e1;border:none;border-radius:12px;box-shadow:none;color:#f59e0b;cursor:pointer;display:flex;flex-shrink:0;height:40px;justify-content:center;transition:background .2s ease,transform .15s ease;width:40px}.trophy-icon-reversed{display:inline-block;font-size:1.5rem;transform:scaleX(-1)}@keyframes trophyPulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.home-screen .trophy-btn:hover{animation:none;background:#fef3c7;transform:scale(1.08)}.home-screen 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var(--dark-neumorphic-highlight)!important}.dark-mode .faq-item.expanded{background:var(--dark-bg-secondary)!important;border-color:#43a04766!important}.dark-mode .faq-question{color:var(--dark-text-primary)!important}.dark-mode .faq-icon{color:#43a047!important;color:var(--si-brand)!important}.dark-mode .faq-answer{color:var(--dark-text-secondary)!important}.dark-mode .support-card{background:var(--dark-neumorphic-base)!important;border-color:var(--dark-border)!important;box-shadow:4px 4px 8px var(--dark-neumorphic-shadow),-4px -4px 8px var(--dark-neumorphic-highlight)!important}.dark-mode .support-card:hover{border-color:#43a0474d!important;box-shadow:6px 6px 12px var(--dark-neumorphic-shadow),-6px -6px 12px var(--dark-neumorphic-highlight)!important}.dark-mode .support-card h3{color:var(--dark-text-primary)!important}.dark-mode .support-card p{color:var(--dark-text-secondary)!important}.dark-mode .support-icon-svg{color:#43a047;color:var(--si-brand)}.dark-mode 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var(--dark-neumorphic-shadow),inset -4px -4px 8px var(--dark-neumorphic-highlight)}.dark-mode .search-input-wrapper:focus-within{box-shadow:inset 5px 5px 10px var(--dark-neumorphic-shadow),inset -5px -5px 10px var(--dark-neumorphic-highlight)}.dark-mode .search-icon{color:var(--dark-text-secondary)}.dark-mode .search-input{color:var(--dark-text-primary)}.dark-mode .search-input::placeholder{color:var(--dark-text-muted)}.dark-mode .word-meaning-item{background:var(--dark-neumorphic-base);box-shadow:8px 8px 16px var(--dark-neumorphic-shadow),-8px -8px 16px var(--dark-neumorphic-highlight)}.dark-mode .word-meaning-item:hover{box-shadow:12px 12px 24px var(--dark-neumorphic-shadow),-12px -12px 24px var(--dark-neumorphic-highlight)}.dark-mode .word-meaning-item.selected,.dark-mode .word-meaning-item:active{box-shadow:inset 4px 4px 8px var(--dark-neumorphic-shadow),inset -4px -4px 8px var(--dark-neumorphic-highlight)}.dark-mode .word-italian{color:var(--dark-text-primary);text-shadow:var(--dark-text-shadow)!important}.dark-mode .word-category{background:var(--dark-neumorphic-base);box-shadow:inset 2px 2px 4px var(--dark-neumorphic-shadow),inset -2px -2px 4px var(--dark-neumorphic-highlight);color:#43a047;color:var(--si-brand)}.dark-mode .word-bengali{color:var(--dark-text-primary);text-shadow:var(--dark-text-shadow)!important}.dark-mode .no-results,.dark-mode .word-english{color:var(--dark-text-secondary)}.dark-mode .opposite-words-screen{background:var(--dark-bg-primary)}.dark-mode .opposite-word-item{background:var(--dark-neumorphic-base);box-shadow:8px 8px 16px var(--dark-neumorphic-shadow),-8px -8px 16px var(--dark-neumorphic-highlight)}.dark-mode .opposite-word-item:hover{box-shadow:10px 10px 20px var(--dark-neumorphic-shadow),-10px -10px 20px var(--dark-neumorphic-highlight)}.dark-mode .opposite-word-item.selected,.dark-mode .opposite-word-item:active{box-shadow:inset 4px 4px 8px var(--dark-neumorphic-shadow),inset -4px -4px 8px var(--dark-neumorphic-highlight)}.dark-mode .word-label{color:var(--dark-text-muted)}.dark-mode .opposite-words-screen .word-italian{color:var(--dark-text-primary)}.dark-mode .opposite-words-screen .word-bengali{color:var(--dark-text-secondary)}.dark-mode .opposite-arrow{color:orange}.dark-mode .opposite-words-screen .word-category{background:#10b98133;box-shadow:inset 2px 2px 4px var(--dark-neumorphic-shadow),inset -2px -2px 4px var(--dark-neumorphic-highlight);color:#10b981}.dark-mode .loading-message,.dark-mode .no-results{color:var(--dark-text-secondary)}.dark-mode .words-grid,.dark-mode .words-screen{background:var(--dark-bg-primary)}.dark-mode .word-category-card{background:var(--dark-neumorphic-base);box-shadow:6px 6px 12px var(--dark-neumorphic-shadow),-6px -6px 12px var(--dark-neumorphic-highlight)}.dark-mode .word-category-card:hover{box-shadow:8px 8px 16px var(--dark-neumorphic-shadow),-8px -8px 16px var(--dark-neumorphic-highlight)}.dark-mode .word-category-card h3{color:var(--dark-text-primary)}.dark-mode .word-category-card p{color:var(--dark-text-secondary)}.dark-mode .words-detail-screen{background:var(--dark-bg-primary)}.dark-mode .word-item-card{background:var(--dark-neumorphic-base);box-shadow:6px 6px 12px var(--dark-neumorphic-shadow),-6px -6px 12px var(--dark-neumorphic-highlight)}.dark-mode .word-item-card:hover{box-shadow:8px 8px 16px var(--dark-neumorphic-shadow),-8px -8px 16px var(--dark-neumorphic-highlight)}.dark-mode .word-item-card h3{color:var(--dark-text-primary)}.dark-mode .word-item-card p{color:var(--dark-text-secondary)}.dark-mode .grammar-screen{background:var(--dark-bg-primary)}.dark-mode .grammar-card{background:var(--dark-neumorphic-base);box-shadow:6px 6px 12px var(--dark-neumorphic-shadow),-6px -6px 12px var(--dark-neumorphic-highlight)}.dark-mode .grammar-card:hover{box-shadow:8px 8px 16px var(--dark-neumorphic-shadow),-8px -8px 16px 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.rule-number{color:#43a047;color:var(--si-brand)}.dark-mode .rule-text-bengali,.dark-mode .rule-text-italian{color:var(--dark-text-primary)}.dark-mode .example-item{background:var(--dark-neumorphic-base)!important;border-color:var(--dark-border)!important;box-shadow:4px 4px 8px var(--dark-neumorphic-shadow),-4px -4px 8px var(--dark-neumorphic-highlight)!important}.dark-mode .example-item:hover{box-shadow:6px 6px 12px var(--dark-neumorphic-shadow),-6px -6px 12px var(--dark-neumorphic-highlight)!important}.dark-mode .example-item.selected,.dark-mode .example-item:active{background:var(--dark-bg-secondary)!important;border-color:#43a047!important;border-color:var(--si-brand)!important;box-shadow:inset 3px 3px 6px var(--dark-neumorphic-shadow),inset -3px -3px 6px var(--dark-neumorphic-highlight)!important}.dark-mode .example-text-bengali,.dark-mode .example-text-italian{color:var(--dark-text-primary)}.dark-mode 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0;max-width:100%;min-width:280px;overflow:hidden;position:relative;width:100%}.lesson-banner-ad-label{color:#bbb;font-size:.6rem;font-weight:600;left:10px;letter-spacing:.8px;position:absolute;text-transform:uppercase;top:6px;z-index:1}.lesson-banner-ad-slot{align-items:center;background:linear-gradient(135deg,#f8f9ff,#f0f2ff);box-sizing:border-box;display:flex;justify-content:center;min-height:90px;min-width:280px;width:100%}.lesson-banner-ad-slot .adsbygoogle{display:block!important;min-height:90px;min-width:250px;width:100%!important}.lesson-banner-ad-placeholder{font-size:1.8rem;opacity:.35}.dark-mode .ad-modal-container{background:#1e1e2e;background:var(--dark-neumorphic-base,#1e1e2e);box-shadow:8px 8px 16px #0006,-8px -8px 16px #ffffff08;box-shadow:8px 8px 16px var(--dark-neumorphic-shadow,#0006),-8px -8px 16px var(--dark-neumorphic-highlight,#ffffff08)}.dark-mode .ad-modal-title{color:#f0f0f0}.dark-mode .ad-modal-description{color:#aaa}.dark-mode 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