@import url(https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap);@import url(https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@500;700&display=swap);*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;min-height:100vh}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--primary-color:#667eea;--secondary-color:#764ba2;--success-color:#10b981;--danger-color:#ef4444;--warning-color:#f59e0b;--text-dark:#1f2937;--text-light:#6b7280;--bg-light:#f9fafb;--border-color:#e5e7eb}.container{margin:0 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#667eea66}.btn-primary:disabled{opacity:.6}.btn:disabled{cursor:not-allowed;opacity:.6}.auth-footer{border-top:1px solid #e5e7eb;margin-top:2rem;padding-top:1.5rem;text-align:center}.auth-footer p{color:#6b7280;font-size:.95rem;margin:0}.auth-link{color:#667eea;font-weight:600;text-decoration:none;transition:color .2s}.auth-link:hover{color:#764ba2;text-decoration:underline}.alert{border-radius:12px;font-size:.9rem;font-weight:500;margin-bottom:1.5rem;padding:.875rem}.alert-error{background:#fee2e2;border:1px solid #fecaca;color:#dc2626}@media (max-width:480px){.auth-card{padding:2rem 1.5rem}.auth-header h1{font-size:1.5rem}.logo-icon{font-size:2rem}}.navbar{background:#fff;box-shadow:0 2px 4px #0000001a;margin-bottom:30px}.navbar-container{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:1200px;padding:16px 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h3{color:#1f2937;font-size:20px;font-weight:600;margin:0}.confirm-modal-body{padding:20px 24px}.confirm-modal-body p{color:#4b5563;font-size:15px;line-height:1.6;margin:0}.confirm-modal-footer{border-top:1px solid #e5e7eb;display:flex;gap:12px;justify-content:flex-end;padding:16px 24px}.confirm-modal-footer button{border:none;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;min-width:100px;padding:10px 20px;transition:all .2s}.btn-cancel:hover{background:#e5e7eb}.btn-confirm{background:#5b21b6;color:#fff}.btn-confirm:hover{background:#6d28d9;box-shadow:0 4px 12px #5b21b64d;transform:translateY(-1px)}.btn-danger{background:#dc2626}.btn-danger:hover{background:#ef4444;box-shadow:0 4px 12px #dc26264d}@media (max-width:640px){.confirm-modal{margin:20px;max-width:95%}.confirm-modal-footer{flex-direction:column-reverse}.confirm-modal-footer button{width:100%}}.alert-modal-overlay{align-items:center;animation:fadeIn .2s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:10000}.alert-modal{animation:slideUp .3s ease;background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;max-width:440px;padding:32px;text-align:center;width:90%}.alert-modal-icon{animation:bounce .5s ease;font-size:4rem;margin-bottom:20px}.alert-modal-icon.warning{filter:drop-shadow(0 4px 12px rgba(255,193,7,.3))}.alert-modal-icon.error{filter:drop-shadow(0 4px 12px rgba(244,67,54,.3))}.alert-modal-icon.success{filter:drop-shadow(0 4px 12px rgba(76,175,80,.3))}.alert-modal-icon.info{filter:drop-shadow(0 4px 12px rgba(33,150,243,.3))}.alert-modal-title{color:#1a1a1a;font-size:1.5rem;font-weight:700;margin-bottom:12px}.alert-modal-message{color:#666;font-size:1rem;line-height:1.6;margin-bottom:24px}.alert-modal-button{background:linear-gradient(135deg,#6c5ce7,#5849c7);border:none;border-radius:8px;box-shadow:0 4px 12px #6c5ce74d;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:14px 48px;transition:all .3s ease}.alert-modal-button:hover{box-shadow:0 6px 16px #6c5ce766;transform:translateY(-2px)}.alert-modal-button:active{transform:translateY(0)}[data-theme=dark] .alert-modal{background:#16213e;color:#e0e0e0}[data-theme=dark] .alert-modal-title{color:#fff}[data-theme=dark] .alert-modal-message{color:#b0b0b0}[data-theme=light] .alert-modal{background:#fff}@media (max-width:768px){.alert-modal{max-width:90%;padding:24px}.alert-modal-icon{font-size:3rem}.alert-modal-title{font-size:1.25rem}.alert-modal-message{font-size:.95rem}}.dashboard-header{align-items:center;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;margin-bottom:40px}.student-dashboard{display:flex;flex-direction:column;margin-top:30px}.dashboard-title-section{background:none;border:none;flex:1 1;margin:0;padding:0;text-align:left}.dashboard-title{color:#000!important;font-size:2.5rem;font-weight:700;letter-spacing:-.5px;margin-bottom:5px}.dashboard-subtitle{color:#1f2937!important;font-size:1.1rem;font-weight:500;margin:0}.user-menu{position:relative}.user-menu-trigger{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:12px;box-shadow:0 4px 12px #667eea4d;color:#fff;cursor:pointer;display:flex;font-size:1rem;font-weight:600;gap:12px;padding:12px 20px;transition:all .3s ease}.user-menu-trigger:hover{box-shadow:0 6px 16px #667eea66;transform:translateY(-2px)}.user-name{white-space:nowrap}.dropdown-arrow{font-size:.8rem;transition:transform .3s ease}.dropdown-arrow.open{transform:rotate(180deg)}.subscription-dropdown{animation:dropdownSlide .2s ease;background:#fff;border:1px solid #0000001a;border-radius:12px;box-shadow:0 8px 24px #00000026;min-width:320px;position:absolute;right:0;top:calc(100% + 8px);z-index:1000}@keyframes dropdownSlide{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dropdown-header{align-items:center;background:linear-gradient(135deg,#667eea0d,#764ba20d);border-bottom:1px solid #eee;border-radius:12px 12px 0 0;display:flex;gap:10px;padding:16px 20px}.dropdown-header span{font-size:1.5rem}.dropdown-header h4{color:#333;font-size:1.1rem;font-weight:600;margin:0}.dropdown-body{padding:20px}.subscription-info{margin-bottom:16px}.info-row{align-items:center;border-bottom:1px solid #f5f5f5;display:flex;justify-content:space-between;padding:10px 0}.info-row:last-child{border-bottom:none}.info-row .label{color:#666;font-size:.9rem;font-weight:500}.info-row .value{color:#333;font-size:.95rem;font-weight:600}.info-row .value.status-free{color:orange}.info-row .value.status-active{color:#10b981}.info-row .value.status-canceled{color:#ef4444}.info-row .value.status-past_due{color:#f59e0b}.dropdown-actions{margin-top:16px}.btn-small{border-radius:8px;font-size:.95rem;padding:10px 16px;width:100%}.subscription-card-top,.subscription-header{display:none}.subscription-body{gap:15px;justify-content:space-between}.subscription-body,.subscription-info{align-items:center;display:flex;flex-direction:row}.subscription-info{flex:1 1;gap:20px}.subscription-end-date,.subscription-status{align-items:center;display:flex;flex-direction:row;gap:8px}.status-label{font-size:.75rem;font-weight:500;letter-spacing:.3px;opacity:.85;text-transform:uppercase}.status-value{align-items:center;display:flex;font-size:.95rem;font-weight:600;gap:6px}.status-free{color:#fbbf24}.status-active{color:#10b981}.status-canceled,.status-past_due{color:#ef4444}.subscription-actions{display:flex;gap:8px}.subscription-actions .btn{border:none;box-shadow:0 2px 8px #00000026;font-size:.85rem;font-weight:600;padding:8px 16px;transition:all .2s ease;white-space:nowrap}.subscription-actions .btn:hover{box-shadow:0 4px 12px #00000040;transform:translateY(-1px)}.subscription-actions .btn-primary{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#1e293b}.subscription-actions .btn-secondary{background:#ffffff26;border:1px solid #ffffff4d;color:#fff}@media (max-width:768px){.subscription-body{align-items:stretch;flex-direction:column}.subscription-info{align-items:flex-start;flex-direction:column;gap:10px}.subscription-actions{width:100%}.subscription-actions .btn{flex:1 1}}.quizzes-grid{grid-gap:24px;align-items:stretch;display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.stat-item{background:var(--bg-light);border:2px solid var(--border-color);border-radius:12px;padding:20px;text-align:center}.stat-number{color:var(--primary-color);display:block;font-size:36px;margin-bottom:8px}.stat-label{color:var(--text-light);display:block}.progress-list{display:flex;flex-direction:column;gap:10px}.progress-item{align-items:center;background:var(--bg-light);border:1px solid var(--border-color);border-radius:8px;display:flex;justify-content:space-between;padding:16px}.progress-date{color:var(--text-light);display:block;font-size:14px;margin-top:4px}.progress-score{color:var(--primary-color);font-size:18px;font-weight:700}.student-quiz-card{background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000001a;display:flex;flex-direction:column;height:100%;padding:24px;position:relative;transition:transform .3s ease}.student-quiz-card.locked-quiz{background:linear-gradient(135deg,#fffbeb,#fef3c7);border:2px solid #fbbf24;opacity:.75}.student-quiz-card:hover{box-shadow:0 8px 16px #00000026;transform:translateY(-4px)}.quiz-locked-badge{background:linear-gradient(135deg,#fbbf24,#f59e0b);box-shadow:0 2px 4px #0003}.quiz-completed-badge,.quiz-locked-badge{border-radius:20px;color:#fff;font-size:.85rem;font-weight:600;padding:5px 12px;position:absolute;right:10px;top:10px}.quiz-completed-badge{background:#10b981}.btn-premium{background:linear-gradient(135deg,#fbbf24,#f59e0b)!important;border:none;box-shadow:0 4px 12px #fbbf2466;color:#fff!important;font-weight:600}.btn-premium:hover{box-shadow:0 6px 16px #fbbf2480;transform:translateY(-2px)}.quiz-stats{background:linear-gradient(135deg,#f9fafb,#f3f4f6);border:2px solid #e5e7eb;border-radius:12px;display:flex;gap:.75rem;margin:1rem 0;padding:1rem}.stat-item{align-items:center;display:flex;flex:1 1;flex-direction:column;gap:.25rem;padding:.5rem}.stat-item.stat-correct{background:#d1fae5;border-radius:8px}.stat-item.stat-incorrect{background:#fee2e2;border-radius:8px}.stat-item.stat-percent{background:#dbeafe;border-radius:8px}.stat-icon{font-size:1.25rem}.stat-number{color:#1f2937;font-size:1.5rem;font-weight:700;line-height:1}.stat-label{color:#6b7280;font-size:.75rem;font-weight:500}.quiz-progress-info{margin:15px 0;order:4}.progress-details{align-items:center;display:flex;justify-content:space-between;margin-top:8px}.quiz-bank-progress{background:#667eea1a;border-radius:6px;color:#667eea;font-size:.85rem;font-weight:500;margin-top:8px;padding:6px 12px;text-align:center}.progress-percent{color:#667eea;font-size:.9rem;font-weight:600}.progress-bar-small{background:#ffffff1a;border-radius:10px;height:8px;margin-bottom:8px;overflow:hidden;width:100%}.progress-fill-small{background:linear-gradient(90deg,#667eea,#764ba2);height:100%;transition:width .3s ease}.progress-text-small{color:#ffffffb3;font-size:.85rem}.quiz-score-small{background:#10b9811a;border-left:3px solid #10b981;border-radius:4px;color:#10b981;font-size:.9rem;font-weight:600;margin:10px 0;order:5;padding:8px 12px}.quiz-badge-student{background:var(--primary-color);border-radius:12px;color:#fff;font-size:12px;font-weight:600;padding:6px 14px;position:absolute;right:12px;text-transform:uppercase;top:12px}.student-quiz-card h3{color:var(--text-dark);font-size:20px;margin-bottom:12px;margin-top:40px;order:2}.student-quiz-card p{color:var(--text-light);margin-bottom:20px;min-height:40px;order:3}.quiz-card-actions{display:flex;gap:10px;margin-top:auto;order:6}.quiz-card-actions .btn-full{flex:1 1;margin-top:0}.btn-full{border:none;border-radius:8px;cursor:pointer;display:inline-block;font-size:1rem;font-weight:600;margin-top:auto;order:6;padding:12px;text-align:center;text-decoration:none;transition:all .3s ease;width:100%}.btn-primary:hover{box-shadow:0 4px 12px #667eea66}.btn-continue{background:linear-gradient(135deg,#10b981,#059669);color:#fff}.btn-continue:hover{box-shadow:0 4px 12px #10b98166;transform:translateY(-2px)}.btn-restart{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.btn-restart:hover{box-shadow:0 4px 12px #f59e0b66;transform:translateY(-2px)}.btn-retry{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.btn-retry:hover{box-shadow:0 4px 12px #3b82f666;transform:translateY(-2px)}.quiz-passed{background:linear-gradient(135deg,#10b9811a,#0596691a);border:2px solid #10b981!important}.quiz-passed strong{color:#10b981}.quiz-failed{background:linear-gradient(135deg,#ef44441a,#dc26261a);border:2px solid #ef4444!important}.quiz-failed strong{color:#ef4444}.quiz-blocked{background:linear-gradient(135deg,#6b72801a,#4b55631a);border:2px solid #6b7280!important}.quiz-blocked strong{color:#6b7280}.speaking-section{margin-bottom:40px;margin-top:60px}.section-title{align-items:center;color:#1f2937;display:flex;font-size:2rem;font-weight:700;gap:12px;margin-bottom:8px}.section-subtitle{color:#1f2937;font-size:1.1rem;font-weight:500;margin-bottom:30px}.speaking-games-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.speaking-game-card{background:#fff;border:2px solid #0000;border-radius:16px;box-shadow:0 4px 20px #00000014;display:flex;flex-direction:column;padding:24px;transition:all .3s ease}.speaking-game-card:hover{border-color:#667eea;box-shadow:0 8px 30px #667eea33;transform:translateY(-5px)}.game-header{flex-wrap:wrap;gap:10px;margin-bottom:16px}.game-difficulty{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-weight:700}.game-category,.game-difficulty{border-radius:20px;font-size:12px;padding:6px 12px}.game-category{background:#f3f4f6;color:#4b5563;font-weight:600}.game-content{flex:1 1;margin-bottom:20px}.game-content h3{color:#1f2937;font-size:1.4rem;font-weight:700;margin:0 0 12px}.game-content p{color:#6b7280;font-size:1rem;line-height:1.6;margin:0 0 16px}.game-info{color:#6b7280;display:flex;font-size:.9rem;gap:16px}.phrases-count{align-items:center;display:flex;font-weight:600;gap:6px}.btn-play-game{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;box-shadow:0 4px 15px #667eea4d;color:#fff;display:block;font-size:1.1rem;font-weight:700;padding:14px 24px;text-align:center;text-decoration:none;transition:all .3s ease}.btn-play-game:hover{box-shadow:0 6px 20px #667eea66;color:#fff;transform:translateY(-2px)}.no-games{background:#fff;border-radius:16px;grid-column:1/-1;padding:60px 20px;text-align:center}.no-games p{color:#6b7280;font-size:1.1rem;margin:0}@media (max-width:768px){.speaking-games-grid{grid-template-columns:1fr}.game-content h3{font-size:1.2rem}.btn-play-game{font-size:1rem;padding:12px 20px}}.crossword-section{margin-bottom:60px;margin-top:40px}.crossword-games-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.crossword-game-card{background:#fff;border:2px solid #0000;border-radius:16px;box-shadow:0 4px 20px #00000014;display:flex;flex-direction:column;padding:24px;transition:all .3s ease}.crossword-game-card:hover{border-color:#667eea;box-shadow:0 8px 30px #667eea33;transform:translateY(-5px)}@media (max-width:768px){.crossword-games-grid{grid-template-columns:1fr}}.admin-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:30px}.admin-header h1{color:#fff;font-size:32px}.admin-actions{display:flex;flex-wrap:wrap;gap:12px}.admin-section{margin-top:32px}.admin-section-title{color:#fff;font-size:22px;margin-bottom:16px}.btn-speaking{background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:8px;color:#fff;cursor:pointer;display:inline-block;font-weight:600;padding:12px 24px;text-decoration:none;transition:all .3s ease}.btn-speaking:hover{box-shadow:0 4px 15px #f59e0b66;transform:translateY(-2px)}.quiz-card{background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000001a;padding:24px;position:relative;transition:transform .3s ease}.quiz-card:hover{box-shadow:0 8px 16px #00000026;transform:translateY(-4px)}.quiz-badge{background:var(--primary-color);border-radius:12px;color:#fff;font-size:12px;font-weight:600;padding:4px 12px;position:absolute;right:12px;text-transform:uppercase;top:12px}.quiz-card h3{color:var(--text-dark);font-size:20px;margin-bottom:12px}.quiz-card p{color:var(--text-light);margin-bottom:20px;min-height:40px}.quiz-actions{gap:10px}.quiz-actions .btn{flex:1 1;font-size:14px;justify-content:center;padding:10px}.toast{align-items:center;animation:slideIn .3s ease;background:#fff;border-radius:12px;box-shadow:0 10px 40px #0003;display:flex;gap:12px;max-width:500px;min-width:300px;padding:16px 20px;position:fixed;right:20px;top:20px;z-index:10001}.toast-icon{flex-shrink:0;font-size:24px}.toast-message{color:#1f2937;flex:1 1;font-size:15px;line-height:1.4}.toast-close{align-items:center;background:none;border:none;border-radius:4px;color:#9ca3af;cursor:pointer;display:flex;flex-shrink:0;font-size:24px;height:24px;justify-content:center;padding:0;transition:all .2s;width:24px}.toast-close:hover{background:#f3f4f6;color:#4b5563}.toast-success{border-left:4px solid #10b981}.toast-error{border-left:4px solid #ef4444}.toast-warning{border-left:4px solid #f59e0b}.toast-info{border-left:4px solid #3b82f6}@media (max-width:640px){.toast{left:10px;max-width:none;min-width:auto;right:10px;top:10px}}.quiz-header-info{background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000001a;margin:20px 0;padding:30px}.quiz-header-info h1{color:var(--text-dark);margin-bottom:10px}.quiz-header-info p{color:var(--text-light);margin-bottom:15px}.difficulty-badge{background:var(--primary-color);border-radius:16px;display:inline-block;font-size:14px;padding:6px 16px}.question-form{border-top:2px solid var(--border-color);margin-top:20px;padding-top:20px}.options-grid{grid-gap:15px;display:grid;gap:15px;grid-template-columns:repeat(2,1fr);margin-bottom:15px}.questions-list{margin-top:20px}.question-item{background:#fff;border-radius:12px;box-shadow:0 2px 4px #0000001a;margin-bottom:16px;padding:24px;position:relative}.question-type-badge{background:var(--primary-color);border-radius:12px;color:#fff;font-size:12px;font-weight:600;padding:4px 12px;position:absolute;right:12px;top:12px}.listening-answer,.word-search-info{background:var(--bg-light);border:2px solid var(--success-color);border-radius:8px;margin-top:15px;padding:12px}.question-item h3{color:var(--text-dark);font-size:18px;margin-bottom:16px}.options-list{grid-gap:10px;display:grid;gap:10px}.option{background:var(--bg-light);border:2px solid var(--border-color);border-radius:8px;color:var(--text-dark);padding:12px}.option.correct{background:#d1fae5;border-color:var(--success-color);font-weight:600}.modal-overlay{animation:fadeIn .3s ease;background:#000000bf}.modal-content{animation:slideUp .4s cubic-bezier(.16,1,.3,1);background:linear-gradient(135deg,#fff,#f8f9ff);border:1px solid #667eea1a;box-shadow:0 25px 70px #667eea4d;max-width:650px;padding:2.5rem}.modal-content h2{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;background-clip:text;color:#2d3748;font-size:28px;font-weight:700;margin-bottom:.5rem}.modal-content>p{color:#718096;font-size:15px;line-height:1.6}.form-group{margin-bottom:1.5rem}.form-group label{color:#4a5568;margin-bottom:.5rem}.form-control{background:#fff;border:2px solid #e2e8f0;border-radius:10px;color:#2d3748;font-size:15px;padding:12px 16px;transition:all .3s ease;width:100%}.form-control:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;outline:none}.form-control::placeholder{color:#a0aec0}.form-row{grid-gap:1rem;gap:1rem}.ai-info-box{background:linear-gradient(135deg,#667eea15,#764ba215);border-left:4px solid #667eea;border-radius:8px;color:#4a5568;font-size:13px;margin:1rem 0;padding:1rem}.btn-ai{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;color:#fff;cursor:pointer;font-weight:600;padding:10px 20px;transition:transform .2s ease,box-shadow .2s ease}.btn-ai:hover{box-shadow:0 4px 12px #667eea66;transform:translateY(-2px)}.btn-ai:disabled{cursor:not-allowed;opacity:.6;transform:none}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:10px;box-shadow:0 4px 12px #667eea4d;font-size:15px;padding:14px 24px;transition:all .3s ease}.btn-primary:hover:not(:disabled){box-shadow:0 6px 20px #667eea66;transform:translateY(-2px)}.btn-primary:disabled{opacity:.5}.btn-secondary{border-radius:10px;color:#4a5568;font-size:15px;padding:14px 24px}.btn-secondary:hover:not(:disabled){background:#cbd5e0}.word-search-container{-webkit-touch-callout:none;margin:0 auto;max-width:600px;touch-action:none;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;width:100%}.word-search-header{text-align:center}.word-search-header h3{color:var(--text-dark);margin-bottom:8px}.word-search-header p{color:var(--text-light);font-size:14px}.words-to-find{background:var(--bg-light);border-radius:8px;margin-bottom:20px;padding:15px}.words-to-find h4{color:var(--text-dark);font-size:16px;margin-bottom:10px}.words-list{display:flex;flex-wrap:wrap;gap:10px}.word-chip{background:#fff;border:2px solid var(--border-color);border-radius:16px;color:var(--text-dark);font-size:14px;font-weight:600;padding:6px 12px;transition:all .3s ease}.word-chip.found{background:var(--success-color);border-color:var(--success-color);color:#fff}.current-word{align-items:center;background:var(--primary-color);border-radius:8px;color:#fff;display:flex;font-size:18px;gap:15px;justify-content:center;margin-bottom:20px;padding:12px;text-align:center}.btn-clear-word{background:#fff;border:none;border-radius:4px;color:var(--primary-color);cursor:pointer;font-size:14px;font-weight:600;padding:4px 12px}.word-search-grid{background:var(--bg-light);border-radius:12px;display:flex;flex-direction:column;gap:5px;margin-bottom:20px;padding:15px}.grid-row{gap:5px}.grid-cell,.grid-row{display:flex;justify-content:center}.grid-cell{-webkit-tap-highlight-color:transparent;align-items:center;background:#fff;border:2px solid var(--border-color);border-radius:8px;color:var(--text-dark);cursor:pointer;font-size:18px;height:40px;touch-action:none;transition:all .2s ease;-webkit-user-select:none;user-select:none;width:40px}.grid-cell:hover{background:#667eea1a;border-color:var(--primary-color);transform:scale(1.05)}@media (max-width:768px){.grid-cell{font-size:16px;height:35px;width:35px}}.grid-cell.selected{background:var(--primary-color);border-color:var(--primary-color);color:#fff;transform:scale(1.1)}.grid-cell.found{background:var(--success-color);border-color:var(--success-color);color:#fff}.found-words-counter{background:var(--bg-light);border-radius:8px;color:var(--text-dark);font-size:16px;font-weight:600;padding:12px;text-align:center}@media (max-width:600px){.grid-cell{font-size:16px;height:35px;width:35px}}.listening-container{margin:0 auto;max-width:600px;width:100%}.listening-header{margin-bottom:30px;text-align:center}.listening-header h3{color:var(--text-dark);font-size:24px;margin-bottom:8px}.listening-header p{color:var(--text-light);font-size:14px}.audio-player-section{margin:30px 0;text-align:center}.btn-play-audio{background:var(--primary-color);border:none;border-radius:50px;box-shadow:0 4px 12px #667eea4d;color:#fff;cursor:pointer;font-size:18px;font-weight:600;padding:20px 40px;transition:all .3s ease}.btn-play-audio:hover:not(:disabled){box-shadow:0 6px 20px #667eea66;transform:translateY(-2px)}.btn-play-audio.playing{animation:pulse 1.5s infinite;background:var(--success-color)}.btn-play-audio:disabled{cursor:not-allowed;opacity:.7}.listening-input{border:2px solid var(--border-color);border-radius:12px;font-family:inherit;font-size:16px;padding:15px;resize:vertical;transition:border-color .3s ease;width:100%}.listening-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #667eea1a;outline:none}.listening-input::placeholder{color:var(--text-light)}.true-false-question{padding:2rem}.question-statement{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:16px;box-shadow:0 10px 30px #667eea4d;color:#fff;font-size:1.25rem;line-height:1.6;margin-bottom:2rem;padding:2rem;position:relative;text-align:center}.quote-icon{font-size:3rem;opacity:.3;position:absolute}.quote-icon:first-child{left:20px;top:10px}.quote-icon:last-child{bottom:10px;right:20px;transform:rotate(180deg)}.question-statement p{margin:0;position:relative;z-index:1}.true-false-options{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:1fr 1fr;margin:0 auto;max-width:600px}.tf-button{align-items:center;background:#fff;border:3px solid #e5e7eb;border-radius:20px;cursor:pointer;display:flex;flex-direction:column;gap:.5rem;overflow:hidden;padding:2rem 1.5rem;position:relative;transition:all .3s ease}.tf-button:before{bottom:0;content:"";left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity .3s;z-index:0}.tf-true:before{background:linear-gradient(135deg,#10b981,#059669)}.tf-false:before{background:linear-gradient(135deg,#ef4444,#dc2626)}.tf-button:hover{box-shadow:0 15px 40px #00000026;transform:translateY(-5px)}.tf-button.selected{border-width:4px;box-shadow:0 20px 50px #0003;transform:scale(1.05)}.tf-button.selected:before{opacity:1}.tf-true{border-color:#d1fae5}.tf-true.selected,.tf-true:hover{border-color:#10b981}.tf-false{border-color:#fee2e2}.tf-false.selected,.tf-false:hover{border-color:#ef4444}.tf-icon{font-size:3rem;font-weight:700;position:relative;transition:transform .3s;z-index:1}.tf-button:hover .tf-icon{transform:scale(1.2)}.tf-true .tf-icon{color:#10b981}.tf-false .tf-icon{color:#ef4444}.tf-button.selected .tf-icon{color:#fff}.tf-label{color:#1f2937;font-size:1.5rem;font-weight:700;position:relative;z-index:1}.tf-button.selected .tf-label{color:#fff}.tf-sublabel{color:#6b7280;font-size:.875rem;position:relative;z-index:1}.tf-button.selected .tf-sublabel{color:#ffffffe6}@media (max-width:640px){.true-false-options{gap:1rem;grid-template-columns:1fr}.question-statement{font-size:1rem;padding:1.5rem}.tf-button{padding:1.5rem 1rem}.tf-icon{font-size:2rem}.tf-label{font-size:1.25rem}}.video-question{padding:1.5rem}.video-container{aspect-ratio:16/9;background:#000;border-radius:16px;box-shadow:0 10px 40px #0000004d;margin:0 auto 2rem;max-width:800px;overflow:hidden;position:relative;width:100%}.video-container iframe,.video-loading{height:100%;left:0;position:absolute;top:0;width:100%}.video-loading{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;flex-direction:column;justify-content:center}.video-loading .spinner{animation:spin 1s linear infinite;border:4px solid #ffffff4d;border-radius:50%;border-top-color:#fff;height:50px;margin-bottom:1rem;width:50px}.video-question-text{align-items:center;background:linear-gradient(135deg,#f3f4f6,#e5e7eb);border-left:5px solid #667eea;border-radius:12px;display:flex;gap:1rem;margin-bottom:2rem;padding:1.5rem}.video-icon{flex-shrink:0;font-size:2rem}.video-question-text h3{color:#1f2937;font-size:1.25rem;line-height:1.5;margin:0}.video-options{display:flex;flex-direction:column;gap:1rem;margin:0 auto;max-width:700px}.video-option{align-items:center;background:#fff;border:3px solid #e5e7eb;border-radius:12px;cursor:pointer;display:flex;gap:1rem;padding:1.25rem 1.5rem;text-align:left;transition:all .3s ease}.video-option:hover{border-color:#667eea;box-shadow:0 8px 25px #667eea33;transform:translateX(8px)}.video-option.selected{background:linear-gradient(135deg,#667eea,#764ba2);border-color:#667eea;box-shadow:0 10px 30px #667eea66;transform:scale(1.02)}.option-letter{align-items:center;background:#f3f4f6;border-radius:10px;color:#667eea;display:flex;flex-shrink:0;font-size:1.125rem;font-weight:700;height:40px;justify-content:center;transition:all .3s;width:40px}.video-option.selected .option-letter{background:#fff;color:#667eea;transform:scale(1.1)}.option-text{color:#374151;flex:1 1;font-size:1rem;font-weight:500;line-height:1.5}.video-option.selected .option-text{color:#fff;font-weight:600}@media (max-width:640px){.video-question{padding:1rem}.video-container{margin-bottom:1.5rem}.video-question-text{flex-direction:column;padding:1rem;text-align:center}.video-question-text h3{font-size:1rem}.video-option{padding:1rem}.video-option:hover{transform:translateX(0)}.option-letter{font-size:1rem;height:35px;width:35px}.option-text{font-size:.9rem}}.modal-overlay{animation:fadeIn .2s ease-out}.modal-container{animation:slideUp .3s ease-out;background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;max-width:440px;padding:32px;text-align:center;width:90%}[data-theme=dark] .modal-container{background:#2d2d2d;color:#e0e0e0}.modal-icon{align-items:center;border-radius:50%;display:flex;font-size:32px;font-weight:700;height:64px;justify-content:center;margin:0 auto 24px;width:64px}.modal-icon-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff}.modal-icon-error{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.modal-icon-warning{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.modal-icon-premium{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff}.modal-icon-info{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.modal-title{color:#1f2937;font-size:24px;font-weight:600;margin:0 0 12px}[data-theme=dark] .modal-title{color:#f3f4f6}.modal-message{color:#6b7280;font-size:16px;line-height:1.6;margin:0 0 24px}[data-theme=dark] .modal-message{color:#d1d5db}.modal-actions{justify-content:center}.modal-button{border:none;border-radius:8px;cursor:pointer;font-size:16px;font-weight:600;padding:12px 32px;transition:all .2s}.modal-button-primary{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.modal-button-primary:hover{box-shadow:0 8px 16px #3b82f666;transform:translateY(-2px)}.modal-button-primary:active{transform:translateY(0)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.quiz-container{margin:0 auto;max-width:800px}.free-user-banner{animation:pulse 2s infinite;background:linear-gradient(135deg,#fbbf24,#f59e0b);border-radius:8px;box-shadow:0 4px 12px #fbbf244d;color:#fff;font-weight:600;margin-bottom:20px;padding:12px 20px;text-align:center}.quiz-info-banner{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:8px;box-shadow:0 2px 8px #667eea4d;color:#fff;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-around;margin-bottom:1.5rem;padding:1rem 1.5rem}.quiz-info-banner span{align-items:center;display:flex;font-size:.9rem;font-weight:500;gap:.5rem}@media (max-width:768px){.quiz-info-banner{align-items:flex-start;flex-direction:column}}.quiz-progress{margin-bottom:30px}.progress-stats{align-items:center;justify-content:space-between}.progress-answered{background:#ffffff0d;border-radius:20px;color:#fff9;font-size:.9rem;padding:4px 12px}.progress-bar{background:#ffffff4d;border-radius:10px;height:8px;margin-bottom:10px;overflow:hidden;width:100%}.progress-fill{background:#fff;height:100%;transition:width .3s ease}.progress-text{color:#fff;font-size:16px;font-weight:600}.quiz-card-take{padding:40px}.quiz-card-take h2{color:var(--text-dark);margin-bottom:20px;text-align:center}.btn-audio{align-items:center;background:var(--primary-color);border:none;border-radius:8px;color:#fff;cursor:pointer;display:flex;font-size:16px;font-weight:600;gap:8px;margin:0 auto 30px;padding:12px 24px;transition:all .3s ease}.btn-audio:hover{box-shadow:0 4px 12px #667eea66;transform:translateY(-2px)}.question-section{margin:30px 0}.question-text{color:var(--text-dark);font-size:22px;margin-bottom:30px;text-align:center}.options-container{display:flex;flex-direction:column;gap:15px}.option-take{align-items:center;background:#fff;border:3px solid var(--border-color);border-radius:12px;cursor:pointer;display:flex;gap:15px;padding:20px;transition:all .3s ease}.option-take:hover{background:#667eea0d;border-color:var(--primary-color)}.option-take.selected{background:#667eea1a;border-color:var(--primary-color)}.option-radio{align-items:center;border:3px solid var(--border-color);border-radius:50%;display:flex;flex-shrink:0;font-size:18px;height:30px;justify-content:center;transition:all .3s ease;width:30px}.option-take.selected .option-radio{background:var(--primary-color);border-color:var(--primary-color);color:#fff}.option-content{color:var(--text-dark);flex:1 1;font-size:16px}.option-content strong{margin-right:8px}.question-container{clear:both;margin-bottom:30px;min-height:400px;overflow:hidden}.question-feedback{align-items:center;animation:slideIn .3s ease;border-radius:12px;display:flex;font-size:1rem;font-weight:600;gap:.75rem;margin:1.5rem 0;padding:1rem 1.5rem}.question-feedback.correct{background:#d1fae5;border:2px solid #10b981;color:#065f46}.question-feedback.incorrect{background:#fee2e2;border:2px solid #ef4444;color:#991b1b}.feedback-icon{font-size:1.5rem}.feedback-text{flex:1 1}.quiz-actions{clear:both;display:flex;gap:15px;justify-content:space-between;margin-top:30px}.quiz-actions .btn{min-width:140px}.btn-secondary{background:#6b7280;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:16px;font-weight:600;padding:12px 24px;transition:all .3s ease}.btn-secondary:hover{background:#4b5563}.results-container{margin:0 auto;max-width:900px}.results-header{margin-bottom:40px;text-align:center}.results-header h1{color:#fff;font-size:42px;margin-bottom:20px}.results-score{align-items:center;display:flex;flex-direction:column;gap:10px}.score-big{color:#fff;font-size:72px;font-weight:700}.score-percentage{color:#ffffffe6;font-size:32px;font-weight:600}.result-item{border-bottom:2px solid var(--border-color);margin-bottom:30px;padding-bottom:30px;position:relative}.result-type-badge{background:var(--primary-color);border-radius:12px;color:#fff;font-size:12px;font-weight:600;padding:4px 12px;position:absolute;right:0;top:0}.result-item:last-child{border-bottom:none}.result-item h3{color:var(--text-dark);font-size:18px;margin-bottom:15px}.result-answers{display:flex;flex-direction:column;gap:10px}.result-option{border-radius:8px;font-weight:600;padding:15px}.result-option.correct{background:#d1fae5;border:2px solid #10b981;color:#065f46}.result-option.incorrect{background:#fee2e2;border:2px solid #ef4444;color:#991b1b}.progress-stats{display:flex;font-size:14px;font-weight:500;gap:20px;justify-content:center;margin-top:10px}.stat-correct{color:#10b981}.stat-incorrect{color:#ef4444}.stat-remaining{color:#6b7280}.progress-stats span{background:#ffffff1a;border-radius:12px;padding:4px 12px}.results-score.passed{background:linear-gradient(135deg,#10b9811a,#0596691a);border:3px solid #10b981}.results-score.failed{background:linear-gradient(135deg,#ef44441a,#dc26261a);border:3px solid #ef4444}.pass-status{align-items:center;border-radius:12px;display:flex;flex-direction:column;font-size:18px;font-weight:600;gap:8px;margin-top:20px;padding:15px 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p{font-size:1.1rem;opacity:.95}.pricing-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin:0 auto 4rem;max-width:1200px}.pricing-card{background:#fff;border-radius:20px;box-shadow:0 10px 40px #0003;padding:2rem;position:relative;transition:transform .3s ease,box-shadow .3s ease}.pricing-card:hover{box-shadow:0 20px 60px #0000004d;transform:translateY(-10px)}.pricing-card.popular{border:3px solid #fbbf24;transform:scale(1.05)}.popular-badge{background:linear-gradient(135deg,#fbbf24,#f59e0b);box-shadow:0 4px 12px #fbbf2466;font-size:.9rem;font-weight:700;left:50%;padding:.5rem 1.5rem;position:absolute;top:-15px;transform:translateX(-50%)}.plan-badge,.popular-badge{border-radius:50px;color:#fff}.plan-badge{background:linear-gradient(135deg,#667eea,#764ba2);display:inline-block;font-size:.85rem;font-weight:600;margin-bottom:1rem;padding:.4rem 1rem}.free-plan .plan-badge{background:#6b7280}.pricing-card h2{color:#1f2937;font-size:1.75rem;margin-bottom:1rem}.plan-price{align-items:baseline;display:flex;gap:.5rem;margin:1.5rem 0}.price{color:#667eea;font-size:3rem;font-weight:700}.period{color:#6b7280;font-size:1.1rem}.savings{color:#10b981;display:block;font-size:.9rem;font-weight:600;margin-top:.5rem}.plan-features{list-style:none;margin:2rem 0;padding:0}.plan-features li{border-bottom:1px solid #e5e7eb;color:#4b5563;font-size:.95rem;padding:.75rem 0}.plan-features li:last-child{border-bottom:none}.btn-plan{border:none;border-radius:12px;cursor:pointer;font-size:1rem;font-weight:700;margin-top:1rem;padding:1rem;transition:all .3s ease;width:100%}.btn-free{background:#6b7280;color:#fff}.btn-free:hover{background:#4b5563}.btn-monthly{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-monthly:hover:not(:disabled){box-shadow:0 8px 20px #667eea66;transform:translateY(-2px)}.btn-annual{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff}.btn-annual:hover:not(:disabled){box-shadow:0 8px 20px #fbbf2466;transform:translateY(-2px)}.btn-plan:disabled{cursor:not-allowed;opacity:.6}.pricing-faq{background:#fff;border-radius:20px;box-shadow:0 10px 40px #0003;margin:0 auto;max-width:1200px;padding:3rem}.pricing-faq h3{color:#1f2937;font-size:2rem;margin-bottom:2rem;text-align:center}.faq-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.faq-item h4{color:#667eea;font-size:1.1rem;margin-bottom:.5rem}.faq-item p{color:#6b7280;line-height:1.6}@media (max-width:768px){.pricing-grid{grid-template-columns:1fr}.pricing-card.popular{transform:scale(1)}.pricing-header h1{font-size:2rem}.price{font-size:2.5rem}.faq-grid{grid-template-columns:1fr}}.payment-success-container{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;min-height:100vh;padding:2rem}.success-card{animation:slideUp .5s ease;background:#fff;border-radius:24px;box-shadow:0 20px 60px #0000004d;max-width:600px;padding:3rem;text-align:center;width:100%}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.success-icon{animation:bounce 1s ease;font-size:5rem;margin-bottom:1rem}@keyframes bounce{0%,to{transform:scale(1)}50%{transform:scale(1.2)}}.success-card h1{color:#10b981;font-size:2rem;margin-bottom:1rem}.success-message{color:#6b7280;font-size:1.1rem;line-height:1.6;margin-bottom:2rem}.success-benefits{background:#f9fafb;border-radius:12px;margin:2rem 0;padding:1.5rem;text-align:left}.success-benefits h3{color:#1f2937;margin-bottom:1rem;text-align:center}.success-benefits ul{list-style:none;margin:0;padding:0}.success-benefits li{border-bottom:1px solid #e5e7eb;color:#4b5563;font-size:.95rem;padding:.75rem 0}.success-benefits li:last-child{border-bottom:none}.success-footer{color:#9ca3af;font-size:.9rem;margin-top:1.5rem}.spinner-large{animation:spin 1s linear infinite;border:4px solid #e5e7eb;border-radius:50%;border-top-color:#667eea;height:60px;margin:0 auto 1.5rem;width:60px}@media (max-width:768px){.success-card{padding:2rem 1.5rem}.success-card h1{font-size:1.5rem}.success-icon{font-size:4rem}}.settings-container{margin:0 auto;max-width:1200px;padding:20px}.settings-header h1{color:#333;font-size:2rem;margin-bottom:30px}.settings-content{background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a;display:flex;gap:30px;overflow:hidden}.settings-tabs{background:#f8f9fa;border-right:1px solid #e0e0e0;display:flex;flex-direction:column;min-width:200px}.settings-tabs button{background:none;border:none;border-left:3px solid #0000;cursor:pointer;font-size:1rem;padding:15px 20px;text-align:left;transition:all .3s}.settings-tabs button:hover{background:#e9ecef}.settings-tabs button.active{background:#fff;border-left-color:#6c5ce7;color:#6c5ce7;font-weight:600}.settings-panel{flex:1 1;padding:30px}.account-settings{max-width:600px}.user-info{background:#f8f9fa;border-radius:8px;margin-bottom:40px;padding:20px}.user-info h2{color:#333;font-size:1.3rem;margin-bottom:15px}.user-info p{color:#666;margin:10px 0}.password-section h2{color:#333;font-size:1.3rem;margin-bottom:10px}.help-text{color:#666;font-size:.9rem;margin-bottom:20px}.form-group label{color:#333;font-weight:500}.form-group input{border:1px solid #ddd;border-radius:6px;font-size:1rem;padding:12px;transition:border-color .3s;width:100%}.form-group input:focus{border-color:#6c5ce7;outline:none}.btn-primary{background:#6c5ce7;border:none;border-radius:6px;cursor:pointer;font-size:1rem;font-weight:600;padding:12px 30px;transition:all .3s}.btn-primary:hover{background:#5849c7;transform:translateY(-2px)}.btn-primary:disabled{background:#ccc;cursor:not-allowed;transform:none}.btn-apply{margin-top:20px}.appearance-settings h2,.language-settings h2{color:#333;font-size:1.3rem;margin-bottom:20px}.language-selector label,.theme-selector label{color:#666;display:block;font-weight:500;margin-bottom:15px}.language-options,.theme-options{display:flex;flex-wrap:wrap;gap:20px}.language-option,.theme-option{align-items:center;border:2px solid #e0e0e0;border-radius:8px;cursor:pointer;display:flex;flex-direction:column;gap:10px;min-width:120px;padding:20px;transition:all .3s}.language-option:hover,.theme-option:hover{border-color:#6c5ce7;transform:translateY(-2px)}.language-option.active,.theme-option.active{background:#f0edff;border-color:#6c5ce7}.theme-preview{border:1px solid #ddd;border-radius:6px;height:50px;width:80px}.default-preview{background:linear-gradient(135deg,#6c5ce7 50%,#fff 0)}.light-preview{background:#fff}.dark-preview{background:#1a1a2e}.language-option .flag{font-size:2.5rem}.language-option span:last-child{color:#333;font-weight:500}@media (max-width:768px){.settings-content{flex-direction:column}.settings-tabs{border-bottom:1px solid #e0e0e0;border-right:none;flex-direction:row;min-width:0;min-width:auto;overflow-x:auto}.settings-tabs button{border-bottom:3px solid #0000;border-left:none;white-space:nowrap}.settings-tabs button.active{border-bottom-color:#6c5ce7;border-left:none}.settings-panel{padding:20px}}[data-theme=light] .appearance-settings h2,[data-theme=light] .language-settings h2,[data-theme=light] .password-section h2,[data-theme=light] .settings-header h1,[data-theme=light] .user-info h2{color:#1a1a1a}[data-theme=light] .settings-content{background:#fff}[data-theme=light] .settings-tabs{background:#f5f5f5}[data-theme=dark]{background:#1a1a2e;color:#e0e0e0}[data-theme=dark] .settings-header h1{color:#fff}[data-theme=dark] .settings-content{background:#16213e;box-shadow:0 2px 8px #0000004d}[data-theme=dark] .settings-tabs{background:#0f1626;border-right-color:#2a2a3e}[data-theme=dark] .settings-tabs button{color:#e0e0e0}[data-theme=dark] .settings-tabs button:hover{background:#1a2332}[data-theme=dark] .settings-tabs button.active{background:#16213e;color:#6c5ce7}[data-theme=dark] .user-info{background:#0f1626}[data-theme=dark] .appearance-settings h2,[data-theme=dark] .language-settings h2,[data-theme=dark] .password-section h2,[data-theme=dark] .user-info h2{color:#fff}[data-theme=dark] .help-text,[data-theme=dark] .language-selector label,[data-theme=dark] .theme-selector label,[data-theme=dark] .user-info p{color:#b0b0b0}[data-theme=dark] .form-group label{color:#e0e0e0}[data-theme=dark] .form-group input{background:#0f1626;border-color:#2a2a3e;color:#e0e0e0}[data-theme=dark] .form-group input:focus{border-color:#6c5ce7}[data-theme=dark] .language-option,[data-theme=dark] 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