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                        বাংলাদেশের ইতিহাস ও বিশ্বসভ্যতা ch 6
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                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
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                        বাংলাদেশের ইতিহাস ও বিশ্বসভ্যতা ch 3
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                        বাংলাদেশের ইতিহাস ও বিশ্বসভ্যতা ch 5
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                        বাংলাদেশের ইতিহাস ও বিশ্বসভ্যতা ch 1
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                            🟡 MEDIUM
                            
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                        physics ch 12
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                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
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                            🟡 MEDIUM
                            
                        </span>
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                        physics ch 11
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                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
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                            <div class="text-lg font-bold text-white">7</div>
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                        physics ch 10
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                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
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                        physics ch 9
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                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
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                            <div class="text-lg font-bold text-white">7</div>
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                            🟡 MEDIUM
                            
                        </span>
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                        physics ch 7
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                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
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                            <div class="text-lg font-bold text-white">5</div>
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                            <div class="text-xs text-purple-300 mb-1">Avg Score</div>
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                            <div class="text-lg font-bold text-white">10</div>
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                    </div>
                    
                    <!-- Start Button -->
                    <button class="w-full py-3 bg-gradient-to-r from-purple-600 to-pink-600 hover:from-purple-500 hover:to-pink-500 text-white font-bold rounded-lg shadow-lg group-hover:shadow-xl transform group-hover:scale-105 transition-all duration-300 flex items-center justify-center gap-2">
                        <span>▶️</span>
                        <span>Start Quiz</span>
                    </button>
                </div>
            </div>
            
            <div class="quiz-card glass-card rounded-2xl overflow-hidden shadow-xl hover:shadow-2xl cursor-pointer group"
                 onclick="window.location.href='/dashboard/quiz/play/2165/'">
                
                <!-- Thumbnail with Gradient Overlay -->
                <div class="relative h-56 overflow-hidden">
                    
                    <div class="w-full h-full bg-gradient-to-br from-purple-600 via-pink-600 to-blue-600 flex items-center justify-center">
                        <span class="text-white text-7xl opacity-80">
                            📚
                        </span>
                    </div>
                    
                    
                    <!-- Difficulty Badge -->
                    
                    <div class="absolute top-4 right-4">
                        <span class="badge-glow px-4 py-2 rounded-full text-xs font-bold text-white backdrop-blur-md
                                   bg-yellow-500/80
                                   ">
                            🟡 MEDIUM
                            
                        </span>
                    </div>
                    
                    
                    <!-- Gradient Overlay -->
                    <div class="absolute inset-0 bg-gradient-to-t from-black/60 via-transparent to-transparent"></div>
                </div>
                
                <!-- Card Content -->
                <div class="p-6 bg-gradient-to-b from-transparent to-black/20">
                    
                    <!-- Category Tag -->
                    
                    <div class="mb-3">
                        <span class="inline-block px-3 py-1 bg-purple-500/30 backdrop-blur-sm text-purple-200 rounded-full text-xs font-semibold border border-purple-400/30">
                            নবম ও দশম শ্রেণী
                        </span>
                    </div>
                    
                    
                    <!-- Title -->
                    <h3 class="text-xl font-bold text-white mb-3 line-clamp-2 group-hover:text-purple-300 transition-colors">
                        physics ch 8
                    </h3>
                    
                    <!-- Description -->
                    <p class="text-gray-300 text-sm mb-4 line-clamp-2 leading-relaxed">
                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
                    </p>
                    
                    <!-- Stats Grid -->
                    <div class="grid grid-cols-3 gap-3 mb-4">
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Plays</div>
                            <div class="text-lg font-bold text-white">6</div>
                        </div>
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Avg Score</div>
                            <div class="text-lg font-bold text-white">0%</div>
                        </div>
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Questions</div>
                            <div class="text-lg font-bold text-white">10</div>
                        </div>
                    </div>
                    
                    <!-- Start Button -->
                    <button class="w-full py-3 bg-gradient-to-r from-purple-600 to-pink-600 hover:from-purple-500 hover:to-pink-500 text-white font-bold rounded-lg shadow-lg group-hover:shadow-xl transform group-hover:scale-105 transition-all duration-300 flex items-center justify-center gap-2">
                        <span>▶️</span>
                        <span>Start Quiz</span>
                    </button>
                </div>
            </div>
            
            <div class="quiz-card glass-card rounded-2xl overflow-hidden shadow-xl hover:shadow-2xl cursor-pointer group"
                 onclick="window.location.href='/dashboard/quiz/play/2164/'">
                
                <!-- Thumbnail with Gradient Overlay -->
                <div class="relative h-56 overflow-hidden">
                    
                    <div class="w-full h-full bg-gradient-to-br from-purple-600 via-pink-600 to-blue-600 flex items-center justify-center">
                        <span class="text-white text-7xl opacity-80">
                            📚
                        </span>
                    </div>
                    
                    
                    <!-- Difficulty Badge -->
                    
                    <div class="absolute top-4 right-4">
                        <span class="badge-glow px-4 py-2 rounded-full text-xs font-bold text-white backdrop-blur-md
                                   bg-yellow-500/80
                                   ">
                            🟡 MEDIUM
                            
                        </span>
                    </div>
                    
                    
                    <!-- Gradient Overlay -->
                    <div class="absolute inset-0 bg-gradient-to-t from-black/60 via-transparent to-transparent"></div>
                </div>
                
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                        <span class="inline-block px-3 py-1 bg-purple-500/30 backdrop-blur-sm text-purple-200 rounded-full text-xs font-semibold border border-purple-400/30">
                            নবম ও দশম শ্রেণী
                        </span>
                    </div>
                    
                    
                    <!-- Title -->
                    <h3 class="text-xl font-bold text-white mb-3 line-clamp-2 group-hover:text-purple-300 transition-colors">
                        physics ch 6
                    </h3>
                    
                    <!-- Description -->
                    <p class="text-gray-300 text-sm mb-4 line-clamp-2 leading-relaxed">
                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
                    </p>
                    
                    <!-- Stats Grid -->
                    <div class="grid grid-cols-3 gap-3 mb-4">
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Plays</div>
                            <div class="text-lg font-bold text-white">3</div>
                        </div>
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Avg Score</div>
                            <div class="text-lg font-bold text-white">0%</div>
                        </div>
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Questions</div>
                            <div class="text-lg font-bold text-white">10</div>
                        </div>
                    </div>
                    
                    <!-- Start Button -->
                    <button class="w-full py-3 bg-gradient-to-r from-purple-600 to-pink-600 hover:from-purple-500 hover:to-pink-500 text-white font-bold rounded-lg shadow-lg group-hover:shadow-xl transform group-hover:scale-105 transition-all duration-300 flex items-center justify-center gap-2">
                        <span>▶️</span>
                        <span>Start Quiz</span>
                    </button>
                </div>
            </div>
            
            <div class="quiz-card glass-card rounded-2xl overflow-hidden shadow-xl hover:shadow-2xl cursor-pointer group"
                 onclick="window.location.href='/dashboard/quiz/play/2163/'">
                
                <!-- Thumbnail with Gradient Overlay -->
                <div class="relative h-56 overflow-hidden">
                    
                    <div class="w-full h-full bg-gradient-to-br from-purple-600 via-pink-600 to-blue-600 flex items-center justify-center">
                        <span class="text-white text-7xl opacity-80">
                            📚
                        </span>
                    </div>
                    
                    
                    <!-- Difficulty Badge -->
                    
                    <div class="absolute top-4 right-4">
                        <span class="badge-glow px-4 py-2 rounded-full text-xs font-bold text-white backdrop-blur-md
                                   bg-yellow-500/80
                                   ">
                            🟡 MEDIUM
                            
                        </span>
                    </div>
                    
                    
                    <!-- Gradient Overlay -->
                    <div class="absolute inset-0 bg-gradient-to-t from-black/60 via-transparent to-transparent"></div>
                </div>
                
                <!-- Card Content -->
                <div class="p-6 bg-gradient-to-b from-transparent to-black/20">
                    
                    <!-- Category Tag -->
                    
                    <div class="mb-3">
                        <span class="inline-block px-3 py-1 bg-purple-500/30 backdrop-blur-sm text-purple-200 rounded-full text-xs font-semibold border border-purple-400/30">
                            নবম ও দশম শ্রেণী
                        </span>
                    </div>
                    
                    
                    <!-- Title -->
                    <h3 class="text-xl font-bold text-white mb-3 line-clamp-2 group-hover:text-purple-300 transition-colors">
                        physics ch 5
                    </h3>
                    
                    <!-- Description -->
                    <p class="text-gray-300 text-sm mb-4 line-clamp-2 leading-relaxed">
                        Test your knowledge with this comprehensive quiz covering key concepts and challenging questions.
                    </p>
                    
                    <!-- Stats Grid -->
                    <div class="grid grid-cols-3 gap-3 mb-4">
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Plays</div>
                            <div class="text-lg font-bold text-white">5</div>
                        </div>
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Avg Score</div>
                            <div class="text-lg font-bold text-white">0%</div>
                        </div>
                        <div class="text-center p-2 rounded-lg bg-white/5 backdrop-blur-sm">
                            <div class="text-xs text-purple-300 mb-1">Questions</div>
                            <div class="text-lg font-bold text-white">10</div>
                        </div>
                    </div>
                    
                    <!-- Start Button -->
                    <button class="w-full py-3 bg-gradient-to-r from-purple-600 to-pink-600 hover:from-purple-500 hover:to-pink-500 text-white font-bold rounded-lg shadow-lg group-hover:shadow-xl transform group-hover:scale-105 transition-all duration-300 flex items-center justify-center gap-2">
                        <span>▶️</span>
                        <span>Start Quiz</span>
                    </button>
                </div>
            </div>
            
        </div>
        
        <!-- Pagination -->
        
        <div class="mt-16 flex justify-center gap-2">
            
            <a href="?page=1" 
               class="px-4 py-2 glass-card text-white rounded-lg hover:bg-white/20 transition-all">First</a>
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               class="px-4 py-2 glass-card text-white rounded-lg hover:bg-white/20 transition-all">← Previous</a>
            
            
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               class="px-4 py-2 glass-card text-white rounded-lg hover:bg-white/20 transition-all">Next →</a>
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</div>

<style>
    @keyframes blob {
        0%, 100% { transform: translate(0px, 0px) scale(1); }
        33% { transform: translate(30px, -50px) scale(1.1); }
        66% { transform: translate(-20px, 20px) scale(0.9); }
    }
    
    .animate-blob {
        animation: blob 7s infinite;
    }
    
    .animation-delay-2000 {
        animation-delay: 2s;
    }
    
    .animation-delay-4000 {
        animation-delay: 4s;
    }
</style>

<script>
document.addEventListener('DOMContentLoaded', function() {
    const categorySelect = document.getElementById('category-select');
    const courseSelect = document.getElementById('course-select');
    const chapterSelect = document.getElementById('chapter-select');
    const difficultySelect = document.getElementById('difficulty-select');
    const searchInput = document.getElementById('search-input');
    const gridContainer = document.getElementById('quiz-grid-container');
    const loader = document.getElementById('loading-indicator');

    // --- 1. Cascading Dropdown Logic ---

    // When Category Changes
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        // Reset Child Dropdowns
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        resetSelect(chapterSelect, 'Select Course First');

        if (catId) {
            // Fetch courses for this category
            fetchOptions('course', catId, courseSelect, 'All Courses');
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        fetchQuizzes();
    });

    // When Course Changes
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        // Reset Chapter
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        if (courseId) {
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    // Other Filters
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    difficultySelect.addEventListener('change', fetchQuizzes);
    
    let timeout = null;
    searchInput.addEventListener('keyup', function() {
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    // --- Helper Functions ---

    function resetSelect(element, placeholder) {
        element.innerHTML = `<option value="">${placeholder}</option>`;
        element.disabled = true;
        element.classList.add('opacity-50', 'cursor-not-allowed');
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    function fetchOptions(type, parentId, targetElement, defaultText) {
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            // Append new options
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                option.value = item.id; // This uses the ID (number)
                option.textContent = item.title;
                targetElement.appendChild(option);
            });
        })
        .catch(error => console.error('Error loading options:', error));
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    function fetchQuizzes() {
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        const url = `${window.location.pathname}?${params.toString()}`;

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        .then(response => response.json())
        .then(data => {
            gridContainer.innerHTML = data.html;
            document.getElementById('total-quizzes-badge').textContent = data.total;
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        .catch(error => {
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    }
});
</script>