@keyframes pulse-opacity{0%,to{opacity:1}50%{opacity:.6}}@keyframes shake{0%,to{transform:translateX(0)}25%{transform:translateX(-10px)}75%{transform:translateX(10px)}}@keyframes loading-dots{0%,20%{content:"."}40%{content:".."}60%,to{content:"..."}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.2)}}@keyframes dots{0%,20%,to{content:""}40%{content:"."}60%{content:".."}80%{content:"..."}}@keyframes fadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin-loader{to{transform:rotate(360deg)}}.quiz-container{align-items:center;margin:0 auto;min-height:400px}.welcome-header{text-align:center}.section-content h3,.welcome-header h1{font-size:2.5rem;color:hsl(var(--foreground));margin-bottom:12px}.subtitle{font-size:1.1rem;color:hsl(var(--muted-foreground))}.quiz-sections{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:48px}.quiz-section{background:hsl(var(--muted));border-radius:var(--radius);padding:32px;height:100%}.section-content h3{font-size:1.5rem;margin-bottom:24px}.modern-list{list-style:none;padding:0!important;margin:0!important}.list-number,.modern-list li{display:flex;align-items:center}.modern-list li{margin-bottom:20px!important;padding:12px;background:hsl(var(--card));border-radius:var(--radius);transition:transform .2s}.modern-list li:hover{transform:translateX(8px)}.list-number{width:32px;height:32px;background:hsl(var(--info));color:hsl(var(--info-foreground));border-radius:50%;justify-content:center;font-weight:700;margin-right:16px;aspect-ratio:1/1}.list-text{font-size:1rem;color:hsl(var(--muted-foreground))}.time-option,.time-options{display:flex;flex-direction:column}.time-options{gap:16px;margin-bottom:32px}.time-option{position:relative;align-items:center;padding:20px;background:hsl(var(--card));border:2px solid hsl(var(--border));border-radius:var(--radius);cursor:pointer;transition:all .3s ease}.time-option:hover{border-color:hsl(var(--info));transform:translateY(-2px);box-shadow:0 4px 12px hsl(var(--info)/.1)}.time-option.disabled{opacity:.5;cursor:not-allowed;background-color:hsl(var(--muted));border-color:hsl(var(--border))}.time-option.disabled:hover{transform:none;box-shadow:none}.time-option[title]:hover::after{content:attr(title);position:absolute;bottom:100%;left:50%;transform:translateX(-50%);padding:5px 10px;background:hsl(var(--foreground));color:hsl(var(--background));border-radius:var(--radius-sm);font-size:14px;white-space:nowrap;margin-bottom:5px}.option-time{font-size:1.5rem;font-weight:700;color:hsl(var(--info));margin-bottom:4px}.option-label{font-size:.9rem;color:hsl(var(--muted-foreground))}.quiz-settings{margin-top:24px}.settings-toggle{display:flex;align-items:center;cursor:pointer}.entry-content .start-game-button.loading-active svg,.quiz-container .start-game-button.loading-active svg,.quiz-section .start-game-button.loading-active svg,.settings-toggle input{display:none}.toggle-slider{position:relative;width:48px;height:24px;background:hsl(var(--border));border-radius:24px;margin-right:12px;transition:.3s}.toggle-slider:before{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:hsl(var(--card));top:2px;left:2px;transition:.3s}.settings-toggle input:checked+.toggle-slider{background:hsl(var(--info))}.settings-toggle input:checked+.toggle-slider:before{transform:translateX(24px)}.toggle-label{font-size:.9rem;color:hsl(var(--muted-foreground))}@media (max-width:768px){.quiz-sections{grid-template-columns:1fr}.welcome-header h1{font-size:2rem}}.quiz-status-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}.timer-container{flex-grow:1;margin-right:20px}.reset-quiz-btn,.timer-header{display:flex;align-items:center}.reset-quiz-btn{background:0 0;border:0;padding:8px;cursor:pointer;color:hsl(var(--muted-foreground));border-radius:var(--radius);transition:all .2s ease;justify-content:center;margin-top:2px}.reset-quiz-btn:hover{background-color:hsl(var(--muted));color:hsl(var(--foreground));transform:rotate(180deg)}.reset-quiz-btn svg{width:16px;height:16px}.timer-header{justify-content:space-between;margin-bottom:1rem}.timer-label,.timer-value{font-weight:600;color:hsl(var(--foreground));font-size:.875rem}.timer-value{font-size:1.125rem}.progress-track{background:hsl(var(--border));height:4px;border-radius:9999px;overflow:hidden;position:relative}.progress-bar{position:absolute;left:0;top:0;height:100%;background:linear-gradient(90deg,hsl(var(--info)),hsl(var(--info)));border-radius:9999px;transition:width .1s linear;width:100%}.progress-bar.active{animation:pulse-opacity 2s infinite}.stats-container{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;width:100%}.stat-box{background:hsl(var(--card));border-radius:var(--radius);padding:1rem 1.5rem;border:1px solid hsl(var(--border))}.stat-label{font-size:.875rem;color:hsl(var(--muted-foreground));margin-bottom:.5rem}.stat-value{font-size:1.5rem;font-weight:600}.dark .modern-table td,.score-value,.stat-value{color:hsl(var(--foreground))}.quiz-content{background:hsl(var(--card));padding:20px;flex-direction:column;text-align:center;margin:0 auto}#answerInput,#questionText{color:hsl(var(--foreground))}#questionText,.quiz-content{display:flex;align-items:center}#questionText{font-size:24px;margin-bottom:32px;min-height:100px;margin-top:23px}#answerInput{width:100%;max-width:400px;padding:16px 20px;margin:20px 0;border:2px solid hsl(var(--border));border-radius:var(--radius);font-size:18px;transition:all .3s ease;background:hsl(var(--muted));text-align:center}#answerInput:focus{outline:0;border-color:hsl(var(--ring));box-shadow:0 0 0 4px hsl(var(--ring)/.1);background:hsl(var(--card))}#answerInput::placeholder{color:hsl(var(--muted-foreground));font-size:16px}#answerInput.correct-answer,.result-button.correct-answer{border:2px solid hsl(var(--success))!important;transition:border-color .3s ease}#answerInput.incorrect-answer,.result-button.incorrect-answer{border:2px solid hsl(var(--destructive))!important;transition:border-color .3s ease}#answerInput.invalid-input{animation:shake .3s ease-in-out;border-color:hsl(var(--destructive));background-color:hsl(var(--destructive)/.05)}.submit-button{background-color:hsl(var(--info));color:hsl(var(--info-foreground));padding:16px 32px;border:0;border-radius:var(--radius);cursor:pointer;font-size:16px;font-weight:600;transition:all .3s ease;min-width:200px;text-transform:uppercase;letter-spacing:.5px;margin-top:10px}.submit-button:hover{filter:brightness(.9);transform:translateY(-2px);box-shadow:0 4px 12px hsl(var(--info)/.2)}.submit-button:active{transform:translateY(0);box-shadow:0 2px 6px hsl(var(--info)/.2)}.submit-button:focus{outline:0;box-shadow:0 0 0 4px hsl(var(--info)/.2)}.submit-button:disabled{background-color:hsl(var(--muted-foreground));cursor:not-allowed;transform:none;box-shadow:none}.quiz-button-container{display:flex;gap:10px;margin-top:20px}.skip-button{flex:1;padding:12px 20px;border-radius:var(--radius);font-size:16px;cursor:pointer;transition:all .2s ease;border:0;background-color:hsl(var(--muted));color:hsl(var(--muted-foreground))}.skip-button:hover{background-color:hsl(var(--border));color:hsl(var(--foreground))}.skip-button:disabled{opacity:.5;cursor:not-allowed}#questionContainer{width:100%;animation:fadeIn .1s ease-out;display:flex;flex-direction:column;align-items:center}.results-section{text-align:center;margin-top:20px;padding:20px}.fraction{display:inline-block;vertical-align:middle;margin:0 8px;text-align:center}.button-grid .fraction{margin:0 4px}.questions-overview .fraction{margin:0 2px}.numerator{border-bottom:1px solid hsl(var(--foreground))}.denominator,.numerator{display:block;padding:0 3px}.math-problem-problem{display:flex;align-items:flex-end;margin:20px 0}.math-problem-numbers{flex:1}.math-problem-line{display:flex;margin:4px 0}.math-problem-operator{display:flex;align-items:center;margin-left:10px;font-size:1.2em;font-weight:700}.math-problem-separator{border-bottom:2px solid hsl(var(--foreground));margin-right:10px;min-width:100%}.math-operator-fraction,.math-operator-fraction-container{display:flex;align-items:center;gap:1rem}.math-operator-fraction{flex-direction:column;gap:.25rem}.math-operator-denominator,.math-operator-numerator{padding:.25rem 0;min-width:8rem;text-align:center}.math-operator-operator-slot{display:inline-block;width:1rem;text-align:center}.math-operator-fraction-bar{height:2px;background-color:hsl(var(--foreground));width:100%;min-width:8rem}.math-operator-equals{padding:0 .5rem;font-weight:700}.math-operator-result{font-weight:700}.results-container{max-width:600px;margin:0 auto}.result-card{padding:24px;background:hsl(var(--muted));border-radius:var(--radius);margin-bottom:16px;transition:transform .2s ease;font-size:18px;font-weight:600}.result-card:hover{transform:translateY(-2px)}.label-result-card{color:hsl(var(--muted-foreground));font-size:14px;font-weight:500;margin-bottom:8px;text-transform:uppercase;letter-spacing:.05em}.value-result-card{color:hsl(var(--foreground));font-size:24px;font-weight:600}#finalScore{color:hsl(var(--success))}#finalScore.negative{color:hsl(var(--destructive))}#timeUsed{color:hsl(var(--purple))}.final-score,.time-used{margin:10px 0;font-size:16px;font-weight:600}.questions-overview{margin:12px 0;padding:0}.question-review{background:hsl(var(--muted));border-radius:var(--radius);margin-bottom:8px;padding:10px 12px;border-left:4px solid hsl(var(--border));counter-reset:katexEqnNo mmlEqnNo}.question-review.correct{border-left-color:hsl(var(--success))}.question-review.incorrect{border-left-color:hsl(var(--destructive))}.question-review.skipped{border-left-color:hsl(var(--warning))}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.question-number{font-weight:700;color:hsl(var(--muted-foreground));font-size:13px}.status{font-size:16px}.correct .status{color:hsl(var(--success))}.incorrect .status{color:hsl(var(--destructive))}.question-content{margin-left:0}.explanation-section table,.question-content table,.quiz-container table{margin-bottom:1rem;background-color:transparent!important}.dark .explanation-section table td,.dark .question-content table td,.dark .quiz-container table td{color:hsl(var(--foreground));background-color:hsl(var(--card));border-color:hsl(var(--border))}.dark .explanation-section table th,.dark .question-content table th,.dark .quiz-container table th{color:hsl(var(--foreground));border-color:hsl(var(--border))}.dark .explanation-section table th,.dark .question-content table th,.dark .quiz-container table th{background-color:hsl(var(--muted))}.question{display:inline-block;font-size:15px;margin-bottom:4px}.math-expression{font-size:15px;margin-bottom:8px}.overview-correct-answer,.overview-user-answer{font-size:14px;color:hsl(var(--muted-foreground));margin:2px 0!important}.live-score-toggle{margin:15px 0;display:flex;align-items:center;gap:10px}.live-score-toggle input{width:20px;height:20px}.live-score-toggle label{font-size:14px;color:hsl(var(--muted-foreground))}.quiz-status-message{text-align:center;margin:20px 0;padding:50px}.loading-text{font-size:34px;margin-bottom:10px;color:hsl(var(--foreground))}.loading-text::after{content:"";animation:dots 2.5s infinite}.countdown-number,.countdown-text{color:hsl(var(--foreground));display:none}.countdown-text{font-size:24px;margin-bottom:10px}.countdown-number{font-size:48px;font-weight:700;animation:pulse 1s infinite}.stats-dashboard{background:hsl(var(--card));border-radius:var(--radius);padding:24px;border:1px solid hsl(var(--border))}.chart-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:20px}.chart-type-selector{display:flex;gap:8px}.chart-type-btn{padding:8px 16px;border:1px solid hsl(var(--border));border-radius:var(--radius);background:hsl(var(--card));color:hsl(var(--muted-foreground));cursor:pointer;transition:all .2s}.chart-type-btn.active{background:hsl(var(--info));color:hsl(var(--info-foreground));border-color:hsl(var(--info))}.range-slider{flex:1;max-width:300px}.slider-wrapper{position:relative;padding:10px 0}.modern-slider{-webkit-appearance:none;width:100%;height:4px;border-radius:2px;background:hsl(var(--border));outline:0}.modern-slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:hsl(var(--info));cursor:pointer;border:2px solid hsl(var(--card));box-shadow:0 2px 4px hsl(var(--foreground)/.1);transition:all .2s}.modern-slider::-webkit-slider-thumb:hover{transform:scale(1.1)}.slider-value{position:absolute;top:-26px;left:53%;transform:translateX(-50%);background:hsl(var(--foreground));color:hsl(var(--background));padding:4px 8px;border-radius:var(--radius-sm);font-size:12px}.modern-slider:hover+.slider-value{opacity:1}.chart-container{position:relative;height:400px;width:100%}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:hsl(var(--foreground)/.5);backdrop-filter:blur(4px);display:none;justify-content:center;align-items:center;z-index:1000;opacity:0;transition:opacity .2s ease}.modal-overlay.active{display:flex;opacity:1}.modal-content{background:hsl(var(--card));border-radius:var(--radius);width:90%;max-width:400px;transform:translateY(20px);transition:transform .3s ease;box-shadow:0 20px 25px -5px hsl(var(--foreground)/.1),0 10px 10px -5px hsl(var(--foreground)/.04)}.modal-overlay.active .modal-content{transform:translateY(0)}.modal-close,.modal-header{display:flex;align-items:center}.modal-header{justify-content:space-between;padding:20px 24px;border-bottom:1px solid hsl(var(--border))}.modal-header h3{margin:0;font-size:1.25rem;color:hsl(var(--foreground))}.modal-close{background:0 0;border:0;padding:4px;cursor:pointer;border-radius:var(--radius);transition:all .2s ease}.modal-close:hover{background-color:hsl(var(--muted));color:hsl(var(--foreground))}.modal-body,.modal-btn.secondary,.modal-close{color:hsl(var(--muted-foreground))}.modal-body{padding:24px;line-height:1.5}.modal-footer{padding:16px 24px;display:flex;justify-content:flex-end;gap:12px;border-top:1px solid hsl(var(--border))}.modal-btn{padding:8px 16px;border-radius:var(--radius);font-weight:500;cursor:pointer;transition:all .2s ease;border:0}.modal-btn.secondary{background:hsl(var(--card));border:1px solid hsl(var(--border))}.modal-btn.secondary:hover{background:hsl(var(--muted));border-color:hsl(var(--border));color:hsl(var(--foreground))}.modal-btn.primary{background:hsl(var(--info));border:1px solid transparent;color:hsl(var(--info-foreground))}.modal-btn.primary:hover{filter:brightness(.9)}.button-grid,.button-grid[data-options="4"]{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;width:100%;padding:0;margin-bottom:50px}.button-grid[data-options="4"]{grid-template-columns:repeat(4,1fr)}.result-button{min-height:80px;padding:1rem;background-color:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:var(--radius);font-size:14px;color:hsl(var(--foreground));cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.4;outline:0}.result-button:hover{background-color:hsl(var(--muted));border-color:hsl(var(--info))}.result-button:focus{outline:2px solid hsl(var(--info));outline-offset:2px}.result-button.selected{border-color:hsl(var(--info))}@media (hover:hover){.result-button:hover{background:hsl(var(--muted))}}@media (hover:none){.result-button:active{background:hsl(var(--muted))}}.result-button:disabled:hover{background:hsl(var(--card))}.result-button:disabled{cursor:default;pointer-events:none}.selected-answer{border:2px solid hsl(var(--info))}.options-overview{display:flex;flex-direction:row;flex-wrap:wrap;justify-content:center;gap:.35rem;width:100%;margin:6px 0 0}.option{display:inline-flex;align-items:center;gap:.35rem;padding:.7rem 1rem;border-radius:var(--radius);background-color:hsl(var(--card));border:1px solid hsl(var(--border));font-size:13px;white-space:nowrap}.option.selected{background-color:hsl(var(--info)/.1);border-color:hsl(var(--info))}.option.correct,.option.selected.correct{background-color:hsl(var(--success)/.1);border-color:hsl(var(--success))}.option.selected:not(.correct){background-color:hsl(var(--destructive)/.1);border-color:hsl(var(--destructive))}.option-letter{font-weight:600;color:hsl(var(--muted-foreground));min-width:1.2rem;font-size:15px}.option-text,.option-text .fraction{display:inline-flex;align-items:center}.option-text{gap:.2rem;font-size:15px}.option-text .fraction{flex-direction:column;vertical-align:middle;margin:0 2px;font-size:12px;line-height:1.1}.option-text .fraction .denominator,.option-text .fraction .numerator{padding:0 2px}@media (max-width:640px){.button-grid{grid-template-columns:1fr}.question-review{padding:8px 10px;margin-bottom:6px}.options-overview{gap:.25rem}.option{padding:.25rem .4rem;font-size:12px}}.explanation-section{margin-top:12px;padding-top:10px;border-top:1px solid hsl(var(--border))}.explanation-header{font-weight:600;color:hsl(var(--foreground));margin-bottom:4px;font-size:13px}.explanation-section .explanation-text,.explanation-section p{font-size:13px;line-height:1.5;margin:0}.questions-nav-wrapper{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;margin-bottom:20px;margin-top:60px;border-radius:var(--radius)}.questions-nav-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(25px,max-content));gap:5px;border-radius:var(--radius);justify-content:start}.question-nav-number{width:25px;height:30px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:13px;cursor:pointer;transition:all .2s ease;border:2px solid hsl(var(--muted-foreground));background:hsl(var(--muted-foreground));color:hsl(var(--card))}.question-nav-number:hover{transform:scale(1.1)}.nav-button,.question-nav-number.current{background:hsl(var(--info));color:hsl(var(--info-foreground))}.question-nav-number.current{border-color:hsl(var(--info))}.question-nav-number.answered{border-color:hsl(var(--success));background:hsl(var(--success));color:hsl(var(--success-foreground))}.question-nav-number.skipped{border-color:hsl(var(--warning));background:hsl(var(--warning));color:hsl(var(--warning-foreground))}.nav-button{padding:4px 12px;border:0;border-radius:var(--radius);cursor:pointer;font-size:14px;transition:background-color .2s}.nav-button:hover{filter:brightness(.9)}.nav-button:disabled{background:hsl(var(--muted));color:hsl(var(--muted-foreground));cursor:not-allowed}.nav-button.hidden{visibility:hidden;opacity:0}.submit-section{margin-top:60px;text-align:center}.submit-test-button,.validation-buttons button{border:0;border-radius:var(--radius);cursor:pointer}.submit-test-button{background-color:hsl(var(--success));color:hsl(var(--success-foreground));padding:12px 24px;font-size:16px}.submit-test-button:hover{filter:brightness(.9)}.validation-message{margin-top:20px;padding:15px;background-color:hsl(var(--warning)/.1);border:1px solid hsl(var(--warning));border-radius:var(--radius)}.validation-message ul{list-style-type:none!important;padding:0;margin:10px 0}.validation-message li{margin:5px 0;color:hsl(var(--foreground))}.validation-buttons{margin-top:15px;display:flex;justify-content:center;gap:10px}.validation-buttons button{padding:8px 16px}.validation-buttons button:first-child{background-color:hsl(var(--destructive));color:hsl(var(--destructive-foreground))}.validation-buttons button:last-child{background-color:hsl(var(--muted-foreground));color:hsl(var(--card))}.related-quizzes-section{background:hsl(var(--muted));border-radius:var(--radius);padding:32px;margin-top:32px}.related-quizzes-section h3{font-size:1.5rem;color:hsl(var(--foreground));margin-bottom:24px;text-align:center}.quizzes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:1.2rem}.quiz-container .related-quizzes-section .quiz-card{background:hsl(var(--card));border-radius:12px;padding:1.3rem 1rem 1rem;display:flex;align-items:flex-start;gap:1rem;transition:all .2s ease;border:1px solid hsl(var(--border));position:relative;text-decoration:none!important;color:inherit!important}.quiz-container .related-quizzes-section .quiz-card:hover{background-color:hsl(var(--muted)/.5);transform:translateY(-4px);box-shadow:0 4px 8px hsl(var(--foreground)/.1);text-decoration:none!important;color:inherit!important}.dark .quiz-container .related-quizzes-section .quiz-card:hover{box-shadow:0 4px 8px hsl(0 0% 0%/.3)}.quiz-icon{font-size:1.7rem;width:50px;height:50px;display:flex;align-items:center;justify-content:center;background:hsl(var(--muted));border-radius:10px;flex-shrink:0}.quiz-icon.ti-company-ac{background-color:hsl(183 100% 94%);color:hsl(185 100% 38%)}.quiz-icon.ti-company-ao{background-color:hsl(0 100% 97%);color:hsl(357 57% 53%)}.quiz-icon.ti-company-ms{background-color:hsl(210 33% 97%);color:hsl(45 15% 63%)}.quiz-icon.ti-company-cs{background-color:hsl(221 100% 97%);color:hsl(228 100% 20%)}.quiz-icon.ti-company-sig{background-color:hsl(224 100% 97%);color:hsl(0 0% 0%)}.quiz-icon.ti-company-mt{background-color:hsl(210 33% 97%);color:hsl(218 62% 15%)}.quiz-icon.ti-company-dv{background-color:hsl(190 100% 97%);color:hsl(198 70% 49%)}.quiz-icon.ti-company-ft{background-color:hsl(0 100% 97%);color:hsl(357 57% 53%)}.quiz-icon.ti-company-js{background-color:hsl(224 100% 97%);color:hsl(0 0% 0%)}.quiz-icon.ti-company-imc{background-color:hsl(190 100% 97%);color:hsl(190 45% 50%)}.quiz-icon.ti-company-vf{background-color:hsl(156 66% 93%);color:hsl(160 100% 40%)}.quiz-info{flex:1;min-height:60px}.quiz-info h4{margin:0!important;font-weight:600;color:hsl(var(--foreground));padding-top:0;font-size:15px}.quiz-info p{margin:.5rem 0 0;color:hsl(var(--muted-foreground));line-height:1.5;font-size:.875rem}@media (max-width:768px){.quizzes-grid{grid-template-columns:1fr;gap:1rem}.quiz-container .related-quizzes-section .quiz-card{padding:1rem}.quiz-icon{width:45px;height:45px;font-size:1.4rem}.quiz-info{min-height:auto}.quiz-info h4{font-size:14px}.quiz-info p{font-size:.8rem}.quiz-content{padding:0}.quiz-sections{grid-template-columns:1fr;gap:16px;margin-bottom:24px}.quiz-section{padding:16px}.related-quizzes-section h3,.section-content h3{font-size:1.25rem;margin-bottom:16px}.welcome-header h1{font-size:1.75rem}.subtitle{font-size:1rem}.modern-list li{padding:8px!important;margin-bottom:12px!important}.list-number{width:28px;height:28px;margin-right:12px;font-size:.7rem}.list-text{font-size:.9rem}.time-option{padding:12px}.option-time{font-size:1.25rem}.option-label{font-size:.8rem}.stats-dashboard{padding:16px}.chart-controls{flex-direction:column;gap:12px;margin-bottom:16px}.range-slider{max-width:100%}.chart-container{height:300px}#questionText{font-size:20px;min-height:80px;margin-bottom:20px}.question-text-sentence{font-size:16px!important}#answerInput{padding:12px 16px;font-size:16px}.submit-button{padding:12px 24px;min-width:160px;font-size:14px}.related-quizzes-section{padding:20px;margin-top:24px}.questions-nav-wrapper{margin-top:30px;margin-bottom:16px}.question-nav-number{width:20px;height:24px;font-size:11px}.button-grid{grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:30px}.result-button{min-height:60px;padding:8px;font-size:12px}}@media (max-width:480px){.quiz-section{padding:12px}.welcome-header h1{font-size:1.5rem}.subtitle{font-size:.9rem}#questionText{font-size:18px}.button-grid{grid-template-columns:1fr}.stat-box{padding:.75rem 1rem}.stat-label{font-size:.75rem}.stat-value{font-size:1.25rem}}.affiliated-message{font-size:.8rem;color:hsl(var(--muted-foreground));margin-top:1rem;padding:.5rem;text-align:center;font-style:italic}.modern-table,.modern-table-container{background:hsl(var(--card));border-radius:var(--radius)}.modern-table-container{padding:20px;box-shadow:0 1px 3px hsl(var(--foreground)/.1);margin-top:48px}.modern-table{width:100%;border-collapse:collapse;font-size:14px;overflow:hidden}.modern-table td,.modern-table th{padding:12px 16px;border-bottom:1px solid hsl(var(--border))}.modern-table th{background:hsl(var(--muted));text-align:left;font-weight:600;color:hsl(var(--foreground));cursor:pointer;transition:background-color .2s;position:relative}.dark .entry-content .slider-container input[type=range],.dark .modern-table tr:hover,.dark .quiz-container .slider-container input[type=range],.dark .quiz-section .slider-container input[type=range],.modern-table th:hover{background:hsl(var(--border))}.modern-table td{color:hsl(var(--muted-foreground))}.modern-table tr:last-child td{border-bottom:none}.modern-table tr:hover,.table-footer{background:hsl(var(--muted))}.sorted-asc::after,.sorted-desc::after{content:"↑";margin-left:8px;font-size:12px}.sorted-desc::after{content:"↓"}.table-footer{margin-top:16px;padding:16px;border-radius:var(--radius);color:hsl(var(--muted-foreground));font-size:14px;line-height:1.5}.table-footer a{color:hsl(var(--link));text-decoration:none}.table-footer a:hover{text-decoration:underline}.metric-good{color:hsl(var(--success))}.metric-average{color:hsl(var(--warning))}.metric-poor{color:hsl(var(--destructive))}.practice-info-box{background:hsl(var(--card));border-radius:var(--radius);padding:15px 20px;margin-bottom:20px;border-left:4px solid hsl(var(--info))}.practice-info-box p{margin:0 0 10px;font-weight:500}.practice-info-box ul{margin:0;padding-left:20px}.practice-info-box li{margin:5px 0}.practice-info-box:has(p:only-child){border-left-color:hsl(var(--success))}.confirmation-dialog{position:fixed;top:0;left:0;width:100%;height:100%;background-color:hsl(var(--foreground)/.5);z-index:1000;display:none}.confirmation-dialog[style*="display: block"]{display:flex!important;justify-content:center;align-items:center}.confirmation-content{background-color:hsl(var(--card));padding:24px;border-radius:var(--radius);box-shadow:0 4px 16px hsl(var(--foreground)/.2);max-width:400px;width:90%;text-align:center;animation:fadeIn .3s ease-out}.confirmation-content p{margin:0 0 20px;font-size:16px;line-height:1.5;color:hsl(var(--foreground))}.confirmation-buttons{display:flex;justify-content:center;gap:12px;margin-top:16px}.confirmation-buttons button{padding:10px 20px;border:0;border-radius:var(--radius);cursor:pointer;font-weight:500;transition:background-color .2s,transform .1s}.confirmation-buttons button:hover{transform:translateY(-2px)}.confirmation-buttons button:active{transform:translateY(0)}.btn-primary{background-color:hsl(var(--warning));color:hsl(var(--warning-foreground))}.btn-primary:hover{filter:brightness(1.1)}.btn-secondary{background-color:hsl(var(--muted));color:hsl(var(--foreground));border:1px solid hsl(var(--border))}.btn-secondary:hover{background-color:hsl(var(--border))}.setting-label-container{display:flex;align-items:center;min-height:45px}.setting-label-container label{margin-bottom:0;margin-right:8px}.tooltip-container{position:relative;display:inline-block}.tooltip-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;background-color:hsl(var(--border));color:hsl(var(--muted-foreground));font-size:12px;font-weight:700;border-radius:50%;cursor:pointer}.leaderboard-card:hover,.tooltip-icon:hover{background-color:hsl(var(--muted))}.tooltip-text{visibility:hidden;width:250px;background-color:hsl(var(--foreground));color:hsl(var(--background));text-align:center;border-radius:var(--radius);padding:8px 12px;position:absolute;z-index:100;bottom:125%;left:50%;transform:translateX(-50%);opacity:0;font-size:12px;line-height:1.4;font-weight:400;box-shadow:0 2px 5px hsl(var(--foreground)/.2)}.tooltip-text::after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:hsl(var(--foreground)) transparent transparent}.tooltip-container:hover .tooltip-text{visibility:visible;opacity:1}.leaderboard-link{margin-top:2rem;text-decoration:none}.leaderboard-card{background:hsl(var(--card));border-radius:var(--radius);padding:1.5rem;display:flex;align-items:center;justify-content:center;gap:1rem;transition:all .2s ease;border:1px solid hsl(var(--border));margin-top:20px;margin-bottom:30px}.leaderboard-card:hover{transform:translateY(-3px);box-shadow:0 6px 16px hsl(var(--foreground)/.1);border-color:hsl(var(--info))}.trophy-emoji{font-size:2rem}.leaderboard-content{text-align:center}.leaderboard-title{margin:0;font-size:1.25rem;font-weight:600;color:hsl(var(--foreground))}.leaderboard-subtitle{margin:.5rem 0 0;color:hsl(var(--muted-foreground))}.note-footer{margin-top:1rem;font-size:.9rem;color:hsl(var(--muted-foreground));font-style:italic}.dark .quiz-content{background:hsl(var(--card))}.dark .modern-table th,.dark .question-review,.dark .quiz-section,.dark .result-card,.dark .table-footer{background:hsl(var(--muted))}.dark .modern-table th{color:hsl(var(--foreground))}.dark .leaderboard-card,.dark .modern-list li,.dark .modern-table-container,.dark .option,.dark .practice-info-box,.dark .result-button,.dark .stat-box,.dark .stats-dashboard,.dark .time-option{background:hsl(var(--card))}.dark #answerInput{background:hsl(var(--input))}.dark #answerInput:focus{background:hsl(var(--card))}.dark .modal-overlay{background:hsl(var(--background)/.8)}.dark .confirmation-dialog{background-color:hsl(var(--background)/.8)}.dark #answerInput:focus,.dark .submit-button:focus{box-shadow:0 0 0 4px hsl(var(--ring)/.3)}.dark .result-button:focus{outline-color:hsl(var(--info))}.dark .quiz-icon{background:hsl(var(--info)/.15)}.dark .quiz-icon.ti-company-ac{background-color:hsl(185 100% 38%/.2);color:hsl(185 100% 55%)}.dark .quiz-icon.ti-company-ao{background-color:hsl(357 57% 53%/.2);color:hsl(357 70% 65%)}.dark .quiz-icon.ti-company-ms{background-color:hsl(45 15% 63%/.2);color:hsl(45 25% 70%)}.dark .quiz-icon.ti-company-cs{background-color:hsl(228 100% 40%/.2);color:hsl(228 100% 70%)}.dark .quiz-icon.ti-company-sig{background-color:hsl(var(--muted));color:hsl(var(--foreground))}.dark .quiz-icon.ti-company-mt{background-color:hsl(218 62% 35%/.2);color:hsl(218 80% 70%)}.dark .quiz-icon.ti-company-dv{background-color:hsl(198 70% 49%/.2);color:hsl(198 80% 60%)}.dark .quiz-icon.ti-company-ft{background-color:hsl(357 57% 53%/.2);color:hsl(357 70% 65%)}.dark .quiz-icon.ti-company-js{background-color:hsl(var(--muted));color:hsl(var(--foreground))}.dark .quiz-icon.ti-company-imc{background-color:hsl(190 45% 50%/.2);color:hsl(190 60% 60%)}.dark .quiz-icon.ti-company-vf{background-color:hsl(160 100% 40%/.2);color:hsl(160 80% 55%)}.quiz-container .difficulty-modes,.quiz-section .difficulty-modes{margin-bottom:24px}.quiz-container .mode-buttons,.quiz-container .preset-buttons,.quiz-section .mode-buttons,.quiz-section .preset-buttons{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}.quiz-container .mode-button,.quiz-container .preset-button,.quiz-section .mode-button,.quiz-section .preset-button{padding:10px 20px;background-color:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:var(--radius-full);cursor:pointer;font-size:14px;font-weight:500;color:hsl(var(--muted-foreground));transition:all .2s ease;white-space:nowrap}.quiz-container .mode-button:hover,.quiz-container .preset-button:hover,.quiz-section .mode-button:hover,.quiz-section .preset-button:hover{background-color:hsl(var(--muted));border-color:hsl(var(--border));color:hsl(var(--foreground))}.quiz-container .mode-button.active,.quiz-container .preset-button.active,.quiz-section .mode-button.active,.quiz-section .preset-button.active{background-color:hsl(var(--info));color:hsl(var(--info-foreground));border-color:hsl(var(--info));box-shadow:0 2px 8px hsl(var(--info)/.25)}.quiz-container .mode-button:disabled,.quiz-container .preset-button:disabled,.quiz-section .mode-button:disabled,.quiz-section .preset-button:disabled{opacity:.5;cursor:not-allowed}.quiz-container #custom-note,.quiz-section #custom-note{font-size:13px;color:hsl(var(--muted-foreground));text-align:center;margin-top:8px;font-style:italic}.entry-content .settings-grid,.quiz-container .settings-grid,.quiz-section .settings-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px;margin-bottom:24px}.entry-content .setting-item,.quiz-container .setting-item,.quiz-section .setting-item{display:flex;flex-direction:column;gap:8px;padding:16px;background-color:hsl(var(--card));border-radius:var(--radius);border:1px solid hsl(var(--border));transition:border-color .2s ease,box-shadow .2s ease}.entry-content .setting-item:hover,.quiz-container .setting-item:hover,.quiz-section .setting-item:hover{border-color:hsl(var(--border));box-shadow:0 2px 8px hsl(var(--foreground)/.04)}.entry-content .setting-item label,.quiz-container .setting-item label,.quiz-section .setting-item label{font-weight:600;font-size:14px;color:hsl(var(--foreground));margin-bottom:0}.entry-content .setting-label-container,.quiz-container .setting-label-container,.quiz-section .setting-label-container{display:flex;align-items:center;gap:8px;min-height:auto}.entry-content .slider-container,.quiz-container .slider-container,.quiz-section .slider-container{display:flex!important;align-items:center;gap:12px;margin:0;width:100%}.entry-content .slider-container input[type=range],.entry-content input[type=range].slider,.quiz-container .slider-container input[type=range],.quiz-container input[type=range].slider,.quiz-section .slider-container input[type=range],.quiz-section input[type=range].slider{-webkit-appearance:none;appearance:none;flex:1;height:6px;background:hsl(var(--border));border-radius:var(--radius-full);outline:0;margin:0;cursor:pointer}.entry-content .slider-container input[type=range]::-webkit-slider-runnable-track,.quiz-container .slider-container input[type=range]::-webkit-slider-runnable-track,.quiz-section .slider-container input[type=range]::-webkit-slider-runnable-track{height:6px;background:hsl(var(--border));border-radius:var(--radius-full)}.entry-content .slider-container input[type=range]::-webkit-slider-thumb,.entry-content input[type=range].slider::-webkit-slider-thumb,.quiz-container .slider-container input[type=range]::-webkit-slider-thumb,.quiz-container input[type=range].slider::-webkit-slider-thumb,.quiz-section .slider-container input[type=range]::-webkit-slider-thumb,.quiz-section input[type=range].slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:hsl(var(--info));border-radius:50%;cursor:pointer;border:3px solid hsl(var(--card));box-shadow:0 2px 6px hsl(var(--info)/.3);transition:transform .15s ease,box-shadow .15s ease;margin-top:-7px}.entry-content .slider-container input[type=range]:hover::-webkit-slider-thumb,.quiz-container .slider-container input[type=range]:hover::-webkit-slider-thumb,.quiz-section .slider-container input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.1);box-shadow:0 3px 10px hsl(var(--info)/.4)}.entry-content .slider-container input[type=range]::-moz-range-thumb,.entry-content input[type=range].slider::-moz-range-thumb,.quiz-container .slider-container input[type=range]::-moz-range-thumb,.quiz-container input[type=range].slider::-moz-range-thumb,.quiz-section .slider-container input[type=range]::-moz-range-thumb,.quiz-section input[type=range].slider::-moz-range-thumb{width:20px;height:20px;background:hsl(var(--info));border-radius:50%;cursor:pointer;border:3px solid hsl(var(--card));box-shadow:0 2px 6px hsl(var(--info)/.3);transition:transform .15s ease,box-shadow .15s ease}.entry-content .slider-container input[type=range]::-moz-range-track,.quiz-container .slider-container input[type=range]::-moz-range-track,.quiz-section .slider-container input[type=range]::-moz-range-track{height:6px;background:hsl(var(--border));border-radius:var(--radius-full)}.entry-content .slider-container input[type=range]:disabled::-webkit-slider-thumb,.quiz-container .slider-container input[type=range]:disabled::-webkit-slider-thumb,.quiz-section .slider-container input[type=range]:disabled::-webkit-slider-thumb{background:hsl(var(--muted-foreground));cursor:not-allowed;box-shadow:none}.entry-content .slider-container input[type=range]:disabled::-moz-range-thumb,.quiz-container .slider-container input[type=range]:disabled::-moz-range-thumb,.quiz-section .slider-container input[type=range]:disabled::-moz-range-thumb{background:hsl(var(--muted-foreground));cursor:not-allowed;box-shadow:none}.entry-content .slider-value-settings,.quiz-container .slider-value-settings,.quiz-section .slider-value-settings{display:inline-block!important;min-width:80px;text-align:right;font-size:13px;font-weight:500;color:hsl(var(--muted-foreground));background:0 0;position:relative!important;transform:none;flex-shrink:0}.entry-content .setting-item select,.quiz-container .setting-item select,.quiz-container select,.quiz-section .setting-item select,.quiz-section select{padding:10px 36px 10px 14px;background-color:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:var(--radius);font-size:14px;color:hsl(var(--foreground));cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M2.5 4.5L6 8l3.5-3.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:12px;width:100%}.entry-content .setting-item select:hover,.quiz-container .setting-item select:hover,.quiz-section .setting-item select:hover{border-color:hsl(var(--info)/.5)}.entry-content .setting-item select:focus,.quiz-container .setting-item select:focus,.quiz-section .setting-item select:focus{outline:0;border-color:hsl(var(--info));box-shadow:0 0 0 3px hsl(var(--info)/.1)}.entry-content .start-game-container,.quiz-container .start-game-container,.quiz-section .start-game-container{margin-top:32px;text-align:center}.entry-content .start-game-button,.quiz-container .start-game-button,.quiz-section .start-game-button{display:inline-flex;align-items:center;justify-content:center;padding:16px 32px;background-color:hsl(var(--success));color:hsl(var(--success-foreground));font-size:16px;font-weight:600;border:0;border-radius:var(--radius);cursor:pointer;transition:all .2s ease;box-shadow:0 4px 12px hsl(var(--success)/.25);text-transform:none;letter-spacing:0}.entry-content .start-game-button:hover,.quiz-container .start-game-button:hover,.quiz-section .start-game-button:hover{background-color:hsl(142 71% 30%);transform:translateY(-2px);box-shadow:0 6px 16px hsl(var(--success)/.35)}.entry-content .start-game-button:active,.quiz-container .start-game-button:active,.quiz-section .start-game-button:active{transform:translateY(0);box-shadow:0 2px 8px hsl(var(--success)/.25)}.entry-content .start-game-button svg,.quiz-container .start-game-button svg,.quiz-section .start-game-button svg{margin-right:8px}.entry-content .start-game-button .loading,.quiz-container .start-game-button .loading,.quiz-section .start-game-button .loading{display:none;width:18px;height:18px;border:2px solid hsl(var(--success-foreground)/.3);border-top-color:hsl(var(--success-foreground));border-radius:50%;animation:spin-loader .8s linear infinite;margin-right:8px}.entry-content .start-game-button.loading-active .loading,.quiz-container .start-game-button.loading-active .loading,.quiz-section .start-game-button.loading-active .loading{display:block}.entry-content .tooltip-container,.quiz-container .tooltip-container,.quiz-section .tooltip-container{position:relative;display:inline-flex;align-items:center}.entry-content .tooltip-icon,.quiz-container .tooltip-icon,.quiz-section .tooltip-icon{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;background-color:hsl(var(--muted));color:hsl(var(--muted-foreground));font-size:11px;font-weight:600;border-radius:50%;cursor:help;transition:background-color .2s ease}.entry-content .tooltip-icon:hover,.quiz-container .tooltip-icon:hover,.quiz-section .tooltip-icon:hover{background-color:hsl(var(--border));color:hsl(var(--foreground))}.entry-content .tooltip-text,.quiz-container .tooltip-text,.quiz-section .tooltip-text{visibility:hidden;opacity:0;width:220px;background-color:hsl(var(--foreground));color:hsl(var(--background));text-align:center;border-radius:var(--radius);padding:10px 14px;position:absolute;z-index:100;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);font-size:12px;line-height:1.5;font-weight:400;box-shadow:0 4px 12px hsl(var(--foreground)/.2);transition:opacity .2s ease,visibility .2s ease}.entry-content .tooltip-text::after,.quiz-container .tooltip-text::after,.quiz-section .tooltip-text::after{content:"";position:absolute;top:100%;left:50%;margin-left:-6px;border-width:6px;border-style:solid;border-color:hsl(var(--foreground)) transparent transparent}.entry-content .tooltip-container:hover .tooltip-text,.quiz-container .tooltip-container:hover .tooltip-text,.quiz-section .tooltip-container:hover .tooltip-text{visibility:visible;opacity:1}@media (max-width:768px){.quiz-container .mode-buttons,.quiz-container .preset-buttons,.quiz-section .mode-buttons,.quiz-section .preset-buttons{gap:6px}.quiz-container .mode-button,.quiz-container .preset-button,.quiz-section .mode-button,.quiz-section .preset-button{padding:8px 14px;font-size:13px}.entry-content .settings-grid,.quiz-container .settings-grid,.quiz-section .settings-grid{grid-template-columns:1fr;gap:12px}.entry-content .setting-item,.quiz-container .setting-item,.quiz-section .setting-item{padding:14px}.entry-content .start-game-button,.quiz-container .start-game-button,.quiz-section .start-game-button{padding:14px 24px;font-size:15px;width:100%;max-width:280px}.entry-content .slider-value-settings,.quiz-container .slider-value-settings,.quiz-section .slider-value-settings{min-width:70px;font-size:12px}}@media (max-width:480px){.quiz-container .mode-button,.quiz-container .preset-button,.quiz-section .mode-button,.quiz-section .preset-button{padding:8px 12px;font-size:12px}}.dark .entry-content .setting-item,.dark .quiz-container .setting-item,.dark .quiz-section .setting-item{background-color:hsl(var(--card));border-color:hsl(var(--border))}.dark .quiz-container .mode-button,.dark .quiz-container .preset-button,.dark .quiz-section .mode-button,.dark .quiz-section .preset-button{background-color:hsl(var(--muted));border-color:hsl(var(--border))}.dark .quiz-container .mode-button:hover,.dark .quiz-container .preset-button:hover,.dark .quiz-section .mode-button:hover,.dark .quiz-section .preset-button:hover{background-color:hsl(var(--border))}.dark .quiz-container .mode-button.active,.dark .quiz-container .preset-button.active,.dark .quiz-section .mode-button.active,.dark .quiz-section .preset-button.active{background-color:hsl(var(--info));color:hsl(var(--info-foreground));border-color:hsl(var(--info));box-shadow:0 2px 8px hsl(var(--info)/.35)}.dark .entry-content .setting-item select,.dark .quiz-container .setting-item select,.dark .quiz-section .setting-item select{background-color:hsl(var(--input));border-color:hsl(var(--border));background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M2.5 4.5L6 8l3.5-3.5'/%3E%3C/svg%3E")}.dark .entry-content .slider-container input[type=range]::-webkit-slider-thumb,.dark .quiz-container .slider-container input[type=range]::-webkit-slider-thumb,.dark .quiz-section .slider-container input[type=range]::-webkit-slider-thumb{border-color:hsl(var(--muted))}