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<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>MyFitCalendar - Suivi Musculation</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script>
        tailwind.config = {
            theme: {
                extend: {
                    colors: {
                        primary: '#10B981',
                        dark: '#111827',
                        darker: '#0B1120',
                        light: '#F3F4F6',
                    }
                }
            }
        }
    </script>
    <style>
        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #1F2937;
        }
        ::-webkit-scrollbar-thumb {
            background: #10B981;
            border-radius: 4px;
        }
        
        /* Animation for workout cards */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .workout-card {
            animation: fadeIn 0.3s ease-out forwards;
        }
        
        /* Custom checkbox */
        .custom-checkbox {
            appearance: none;
            -webkit-appearance: none;
            width: 20px;
            height: 20px;
            border: 2px solid #10B981;
            border-radius: 4px;
            outline: none;
            cursor: pointer;
            position: relative;
        }
        
        .custom-checkbox:checked {
            background-color: #10B981;
        }
        
        .custom-checkbox:checked::after {
            content: '✓';
            position: absolute;
            color: white;
            font-size: 14px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }
        
        /* Date picker custom style */
        input[type="date"]::-webkit-calendar-picker-indicator {
            filter: invert(1);
        }
    </style>
</head>
<body class="bg-dark text-light min-h-screen">
    <div class="container mx-auto px-4 py-8">
        <!-- Header -->
        <header class="flex justify-between items-center mb-8">
            <div>
                <h1 class="text-3xl font-bold text-primary">MyFitCalendar</h1>
                <p class="text-gray-400">Suivi de vos séances de musculation</p>
            </div>
            <div class="flex items-center space-x-4">
                <button id="auth-btn" class="bg-primary hover:bg-green-600 text-dark font-medium py-2 px-4 rounded-lg transition">
                    <i class="fas fa-sign-in-alt mr-2"></i>Connexion
                </button>
                <button id="export-btn" class="border border-primary text-primary hover:bg-green-900/50 font-medium py-2 px-4 rounded-lg transition">
                    <i class="fas fa-file-export mr-2"></i>Exporter
                </button>
                <button id="import-btn" class="border border-primary text-primary hover:bg-green-900/50 font-medium py-2 px-4 rounded-lg transition">
                    <i class="fas fa-file-import mr-2"></i>Importer
                </button>
            </div>
        </header>

        <!-- Main Content -->
        <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
            <!-- Calendar Section -->
            <div class="lg:col-span-2 bg-darker rounded-xl p-6 shadow-lg">
                <div class="flex justify-between items-center mb-6">
                    <h2 class="text-2xl font-semibold text-primary">Calendrier</h2>
                    <div class="flex items-center space-x-4">
                        <button id="prev-month" class="text-primary hover:text-green-300 transition">
                            <i class="fas fa-chevron-left"></i>
                        </button>
                        <span id="current-month" class="font-medium">Mai 2023</span>
                        <button id="next-month" class="text-primary hover:text-green-300 transition">
                            <i class="fas fa-chevron-right"></i>
                        </button>
                    </div>
                </div>
                
                <!-- Calendar Grid -->
                <div class="grid grid-cols-7 gap-2 mb-4">
                    <div class="text-center font-medium text-primary">Lun</div>
                    <div class="text-center font-medium text-primary">Mar</div>
                    <div class="text-center font-medium text-primary">Mer</div>
                    <div class="text-center font-medium text-primary">Jeu</div>
                    <div class="text-center font-medium text-primary">Ven</div>
                    <div class="text-center font-medium text-primary">Sam</div>
                    <div class="text-center font-medium text-primary">Dim</div>
                </div>
                
                <div id="calendar-grid" class="grid grid-cols-7 gap-2">
                    <!-- Calendar days will be generated by JavaScript -->
                </div>
                
                <!-- Multi-day selection controls -->
                <div class="mt-6 p-4 bg-gray-800 rounded-lg">
                    <div class="flex items-center justify-between mb-2">
                        <h3 class="text-primary font-medium">Sélection multiple</h3>
                        <button id="clear-selection" class="text-xs text-gray-400 hover:text-primary transition">Effacer</button>
                    </div>
                    <p class="text-sm text-gray-400 mb-3">Sélectionnez plusieurs jours pour marquer une séance sur plusieurs jours</p>
                    <div class="flex items-center space-x-4">
                        <div class="flex-1">
                            <label class="block text-sm text-gray-400 mb-1">Couleur</label>
                            <select id="multi-day-color" class="w-full bg-gray-700 border border-gray-600 rounded-md px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-primary">
                                <option value="bg-green-500/30">Vert</option>
                                <option value="bg-blue-500/30">Bleu</option>
                                <option value="bg-purple-500/30">Violet</option>
                                <option value="bg-yellow-500/30">Jaune</option>
                                <option value="bg-red-500/30">Rouge</option>
                            </select>
                        </div>
                        <button id="apply-multi-day" class="mt-5 bg-primary hover:bg-green-600 text-dark font-medium py-2 px-4 rounded-lg transition">
                            <i class="fas fa-check mr-2"></i>Appliquer
                        </button>
                    </div>
                </div>
            </div>
            
            <!-- Workout Form Section -->
            <div class="bg-darker rounded-xl p-6 shadow-lg">
                <h2 class="text-2xl font-semibold text-primary mb-6">Nouvelle Séance</h2>
                
                <form id="workout-form" class="space-y-4">
                    <div>
                        <label for="workout-name" class="block text-sm font-medium text-gray-400 mb-1">Nom de la séance</label>
                        <input type="text" id="workout-name" class="w-full bg-gray-700 border border-gray-600 rounded-md px-3 py-2 focus:outline-none focus:ring-1 focus:ring-primary" placeholder="Ex: Push Day" required>
                    </div>
                    
                    <div>
                        <label for="workout-date" class="block text-sm font-medium text-gray-400 mb-1">Date</label>
                        <input type="date" id="workout-date" class="w-full bg-gray-700 border border-gray-600 rounded-md px-3 py-2 focus:outline-none focus:ring-1 focus:ring-primary" required>
                    </div>
                    
                    <div>
                        <label for="workout-duration" class="block text-sm font-medium text-gray-400 mb-1">Durée (minutes)</label>
                        <input type="number" id="workout-duration" min="1" class="w-full bg-gray-700 border border-gray-600 rounded-md px-3 py-2 focus:outline-none focus:ring-1 focus:ring-primary" placeholder="60" required>
                    </div>
                    
                    <div>
                        <label for="workout-satisfaction" class="block text-sm font-medium text-gray-400 mb-1">Satisfaction</label>
                        <div class="flex items-center space-x-2">
                            <input type="range" id="workout-satisfaction" min="0" max="100" value="50" class="w-full h-2 bg-gray-600 rounded-lg appearance-none cursor-pointer">
                            <span id="satisfaction-value" class="text-primary font-medium">50%</span>
                        </div>
                    </div>
                    
                    <div class="pt-2">
                        <label class="flex items-center space-x-2 cursor-pointer">
                            <input type="checkbox" id="intensity-drop" class="custom-checkbox">
                            <span class="text-sm text-gray-400">Série dégressive</span>
                        </label>
                    </div>
                    
                    <!-- Exercises Container -->
                    <div class="space-y-4">
                        <div class="flex justify-between items-center">
                            <h3 class="text-sm font-medium text-gray-400">Exercices</h3>
                            <button type="button" id="add-exercise" class="text-xs text-primary hover:text-green-300 transition flex items-center">
                                <i class="fas fa-plus mr-1"></i> Ajouter
                            </button>
                        </div>
                        
                        <div id="exercises-container">
                            <!-- Exercise fields will be added here -->
                        </div>
                    </div>
                    
                    <div class="pt-4">
                        <button type="submit" class="w-full bg-primary hover:bg-green-600 text-dark font-medium py-2 px-4 rounded-lg transition flex items-center justify-center">
                            <i class="fas fa-save mr-2"></i> Enregistrer
                        </button>
                    </div>
                </form>
            </div>
        </div>
        
        <!-- Workouts List Section -->
        <div class="mt-8 bg-darker rounded-xl p-6 shadow-lg">
            <div class="flex justify-between items-center mb-6">
                <h2 class="text-2xl font-semibold text-primary">Historique des Séances</h2>
                <div class="flex items-center space-x-2">
                    <input type="text" id="search-workouts" placeholder="Rechercher..." class="bg-gray-700 border border-gray-600 rounded-md px-3 py-1 text-sm focus:outline-none focus:ring-1 focus:ring-primary">
                    <button id="clear-search" class="text-gray-400 hover:text-primary transition">
                        <i class="fas fa-times"></i>
                    </button>
                </div>
            </div>
            
            <div id="workouts-list" class="space-y-3">
                <!-- Workout cards will be added here -->
                <div class="text-center text-gray-500 py-8">
                    <i class="fas fa-dumbbell text-4xl mb-2"></i>
                    <p>Aucune séance enregistrée</p>
                </div>
            </div>
        </div>
    </div>
    
    <!-- Modals -->
    <!-- Workout Details Modal -->
    <div id="workout-modal" class="fixed inset-0 bg-black bg-opacity-70 flex items-center justify-center z-50 hidden">
        <div class="bg-darker rounded-xl p-6 w-full max-w-md mx-4 max-h-[90vh] overflow-y-auto">
            <div class="flex justify-between items-center mb-4">
                <h3 id="modal-title" class="text-xl font-semibold text-primary"></h3>
                <button id="close-modal" class="text-gray-400 hover:text-primary transition">
                    <i class="fas fa-times"></i>
                </button>
            </div>
            <div id="modal-content" class="space-y-4">
                <!-- Workout details will be added here -->
            </div>
            <div class="mt-6 flex justify-end space-x-3">
                <button id="delete-workout" class="text-red-400 hover:text-red-300 transition flex items-center">
                    <i class="fas fa-trash mr-2"></i> Supprimer
                </button>
                <button id="edit-workout" class="text-primary hover:text-green-300 transition flex items-center">
                    <i class="fas fa-edit mr-2"></i> Modifier
                </button>
            </div>
        </div>
    </div>
    
    <!-- Import/Export Modal -->
    <div id="data-modal" class="fixed inset-0 bg-black bg-opacity-70 flex items-center justify-center z-50 hidden">
        <div class="bg-darker rounded-xl p-6 w-full max-w-md mx-4">
            <div class="flex justify-between items-center mb-4">
                <h3 id="data-modal-title" class="text-xl font-semibold text-primary"></h3>
                <button id="close-data-modal" class="text-gray-400 hover:text-primary transition">
                    <i class="fas fa-times"></i>
                </button>
            </div>
            <div id="data-modal-content" class="space-y-4">
                <textarea id="data-textarea" class="w-full h-40 bg-gray-700 border border-gray-600 rounded-md px-3 py-2 focus:outline-none focus:ring-1 focus:ring-primary" placeholder="Données JSON..."></textarea>
                <div id="user-prefix-container" class="hidden">
                    <label for="user-prefix" class="block text-sm font-medium text-gray-400 mb-1">Préfixe utilisateur</label>
                    <input type="text" id="user-prefix" class="w-full bg-gray-700 border border-gray-600 rounded-md px-3 py-2 focus:outline-none focus:ring-1 focus:ring-primary" placeholder="Votre nom">
                </div>
            </div>
            <div class="mt-6 flex justify-end">
                <button id="confirm-data-action" class="bg-primary hover:bg-green-600 text-dark font-medium py-2 px-4 rounded-lg transition">
                    Confirmer
                </button>
            </div>
        </div>
    </div>
    
    <!-- Auth Modal -->
    <div id="auth-modal" class="fixed inset-0 bg-black bg-opacity-70 flex items-center justify-center z-50 hidden">
        <div class="bg-darker rounded-xl p-6 w-full max-w-md mx-4">
            <div class="flex justify-between items-center mb-4">
                <h3 class="text-xl font-semibold text-primary">Connexion</h3>
                <button id="close-auth-modal" class="text-gray-400 hover:text-primary transition">
                    <i class="fas fa-times"></i>
                </button>
            </div>
            <div class="space-y-4">
                <p class="text-gray-400">Connectez-vous avec Google pour sauvegarder vos données en ligne.</p>
                <button id="google-auth-btn" class="w-full bg-white hover:bg-gray-100 text-dark font-medium py-2 px-4 rounded-lg transition flex items-center justify-center">
                    <img src="https://upload.wikimedia.org/wikipedia/commons/5/53/Google_%22G%22_Logo.svg" alt="Google logo" class="w-5 h-5 mr-3">
                    Continuer avec Google
                </button>
            </div>
        </div>
    </div>

    <script>
        // DOM Elements
        const calendarGrid = document.getElementById('calendar-grid');
        const currentMonthEl = document.getElementById('current-month');
        const prevMonthBtn = document.getElementById('prev-month');
        const nextMonthBtn = document.getElementById('next-month');
        const workoutForm = document.getElementById('workout-form');
        const exercisesContainer = document.getElementById('exercises-container');
        const addExerciseBtn = document.getElementById('add-exercise');
        const workoutsList = document.getElementById('workouts-list');
        const workoutModal = document.getElementById('workout-modal');
        const closeModalBtn = document.getElementById('close-modal');
        const modalTitle = document.getElementById('modal-title');
        const modalContent = document.getElementById('modal-content');
        const deleteWorkoutBtn = document.getElementById('delete-workout');
        const editWorkoutBtn = document.getElementById('edit-workout');
        const satisfactionSlider = document.getElementById('workout-satisfaction');
        const satisfactionValue = document.getElementById('satisfaction-value');
        const dataModal = document.getElementById('data-modal');
        const closeDataModalBtn = document.getElementById('close-data-modal');
        const dataModalTitle = document.getElementById('data-modal-title');
        const dataModalContent = document.getElementById('data-modal-content');
        const dataTextarea = document.getElementById('data-textarea');
        const confirmDataActionBtn = document.getElementById('confirm-data-action');
        const exportBtn = document.getElementById('export-btn');
        const importBtn = document.getElementById('import-btn');
        const authModal = document.getElementById('auth-modal');
        const closeAuthModalBtn = document.getElementById('close-auth-modal');
        const authBtn = document.getElementById('auth-btn');
        const googleAuthBtn = document.getElementById('google-auth-btn');
        const clearSelectionBtn = document.getElementById('clear-selection');
        const multiDayColorSelect = document.getElementById('multi-day-color');
        const applyMultiDayBtn = document.getElementById('apply-multi-day');
        const searchWorkoutsInput = document.getElementById('search-workouts');
        const clearSearchBtn = document.getElementById('clear-search');
        const userPrefixContainer = document.getElementById('user-prefix-container');
        const userPrefixInput = document.getElementById('user-prefix');

        // State
        let currentDate = new Date();
        let workouts = JSON.parse(localStorage.getItem('workouts')) || [];
        let selectedWorkoutId = null;
        let selectedDays = [];
        let isExporting = false;
        let isAuthenticated = false;

        // Initialize
        function init() {
            renderCalendar();
            renderWorkouts();
            addExercise();
            
            // Set current date in form
            const today = new Date().toISOString().split('T')[0];
            document.getElementById('workout-date').value = today;
            
            // Check if user is authenticated (simulated)
            checkAuthStatus();
        }

        // Calendar Functions
        function renderCalendar() {
            calendarGrid.innerHTML = '';
            
            const year = currentDate.getFullYear();
            const month = currentDate.getMonth();
            
            currentMonthEl.textContent = new Intl.DateTimeFormat('fr-FR', { 
                month: 'long', 
                year: 'numeric' 
            }).format(currentDate);
            
            const firstDay = new Date(year, month, 1);
            const lastDay = new Date(year, month + 1, 0);
            
            const startDay = firstDay.getDay() === 0 ? 6 : firstDay.getDay() - 1;
            const totalDays = lastDay.getDate();
            
            // Add empty cells for days before the first day of the month
            for (let i = 0; i < startDay; i++) {
                const cell = document.createElement('div');
                cell.className = 'h-24 bg-gray-800 rounded-md opacity-50';
                calendarGrid.appendChild(cell);
            }
            
            // Add cells for each day of the month
            for (let i = 1; i <= totalDays; i++) {
                const cell = document.createElement('div');
                cell.className = 'h-24 bg-gray-800 rounded-md p-2 overflow-hidden relative';
                
                const dayDate = new Date(year, month, i);
                const dayISO = dayDate.toISOString().split('T')[0];
                
                // Check if day has workouts
                const dayWorkouts = workouts.filter(w => w.date === dayISO);
                
                // Check if day is part of a multi-day workout
                const multiDayWorkout = workouts.find(w => 
                    w.multiDayDates && w.multiDayDates.includes(dayISO)
                );
                
                if (multiDayWorkout) {
                    cell.classList.add(multiDayWorkout.multiDayColor);
                }
                
                // Add day number
                const dayNumber = document.createElement('div');
                dayNumber.className = 'text-right font-medium';
                dayNumber.textContent = i;
                cell.appendChild(dayNumber);
                
                // Add workout indicators
                if (dayWorkouts.length > 0) {
                    const workoutIndicator = document.createElement('div');
                    workoutIndicator.className = 'absolute bottom-1 left-1 right-1 flex space-x-1';
                    
                    dayWorkouts.forEach(workout => {
                        const dot = document.createElement('div');
                        dot.className = 'h-2 w-2 rounded-full bg-primary';
                        workoutIndicator.appendChild(dot);
                    });
                    
                    cell.appendChild(workoutIndicator);
                }
                
                // Highlight today
                const today = new Date();
                if (
                    dayDate.getDate() === today.getDate() && 
                    dayDate.getMonth() === today.getMonth() && 
                    dayDate.getFullYear() === today.getFullYear()
                ) {
                    cell.classList.add('border', 'border-primary');
                }
                
                // Add click event for selection
                cell.addEventListener('click', () => {
                    if (selectedDays.includes(dayISO)) {
                        selectedDays = selectedDays.filter(d => d !== dayISO);
                        cell.classList.remove('ring-2', 'ring-primary');
                    } else {
                        selectedDays.push(dayISO);
                        cell.classList.add('ring-2', 'ring-primary');
                    }
                });
                
                calendarGrid.appendChild(cell);
            }
        }

        // Workout Form Functions
        function addExercise() {
            const exerciseDiv = document.createElement('div');
            exerciseDiv.className = 'exercise bg-gray-700 p-3 rounded-lg';
            
            exerciseDiv.innerHTML = `
                <div class="grid grid-cols-1 md:grid-cols-4 gap-3">
                    <div class="md:col-span-2">
                        <label class="block text-xs text-gray-400 mb-1">Exercice</label>
                        <input type="text" class="exercise-name w-full bg-gray-600 border border-gray-500 rounded-md px-2 py-1 text-sm focus:outline-none focus:ring-1 focus:ring-primary" placeholder="Ex: Développé couché" required>
                    </div>
                    <div>
                        <label class="block text-xs text-gray-400 mb-1">Séries</label>
                        <input type="number" min="1" class="exercise-sets w-full bg-gray-600 border border-gray-500 rounded-md px-2 py-1 text-sm focus:outline-none focus:ring-1 focus:ring-primary" placeholder="4" required>
                    </div>
                    <div>
                        <label class="block text-xs text-gray-400 mb-1">Charge (kg)</label>
                        <input type="number" min="0" step="0.5" class="exercise-weight w-full bg-gray-600 border border-gray-500 rounded-md px-2 py-1 text-sm focus:outline-none focus:ring-1 focus:ring-primary" placeholder="60" required>
                    </div>
                </div>
                <div class="mt-2 flex items-center justify-between">
                    <div class="flex items-center space-x-3">
                        <label class="flex items-center space-x-1 cursor-pointer">
                            <input type="checkbox" class="exercise-unilateral custom-checkbox">
                            <span class="text-xs text-gray-400">Unilatéral</span>
                        </label>
                    </div>
                    <button type="button" class="remove-exercise text-xs text-red-400 hover:text-red-300 transition">
                        <i class="fas fa-trash mr-1"></i> Supprimer
                    </button>
                </div>
            `;
            
            exercisesContainer.appendChild(exerciseDiv);
            
            // Add event listener to remove button
            const removeBtn = exerciseDiv.querySelector('.remove-exercise');
            removeBtn.addEventListener('click', () => {
                if (exercisesContainer.querySelectorAll('.exercise').length > 1) {
                    exerciseDiv.remove();
                } else {
                    alert('Vous devez avoir au moins un exercice.');
                }
            });
        }

        // Workout List Functions
        function renderWorkouts(filter = '') {
            workoutsList.innerHTML = '';
            
            let filteredWorkouts = workouts;
            
            if (filter) {
                const searchTerm = filter.toLowerCase();
                filteredWorkouts = workouts.filter(workout => 
                    workout.name.toLowerCase().includes(searchTerm) ||
                    workout.exercises.some(ex => ex.name.toLowerCase().includes(searchTerm))
                );
            }
            
            if (filteredWorkouts.length === 0) {
                workoutsList.innerHTML = `
                    <div class="text-center text-gray-500 py-8">
                        <i class="fas fa-dumbbell text-4xl mb-2"></i>
                        <p>Aucune séance trouvée</p>
                    </div>
                `;
                return;
            }
            
            filteredWorkouts.sort((a, b) => new Date(b.date) - new Date(a.date));
            
            filteredWorkouts.forEach(workout => {
                const workoutCard = document.createElement('div');
                workoutCard.className = 'workout-card bg-gray-800 rounded-lg p-4 hover:bg-gray-700/50 transition cursor-pointer';
                workoutCard.dataset.id = workout.id;
                
                // Calculate total volume
                const totalVolume = workout.exercises.reduce((sum, ex) => {
                    return sum + (ex.sets * ex.weight);
                }, 0);
                
                // Format date
                const workoutDate = new Date(workout.date);
                const formattedDate = workoutDate.toLocaleDateString('fr-FR', {
                    weekday: 'short',
                    day: 'numeric',
                    month: 'short'
                });
                
                workoutCard.innerHTML = `
                    <div class="flex justify-between items-start">
                        <div>
                            <h3 class="font-medium text-lg">${workout.name}</h3>
                            <p class="text-sm text-gray-400">${formattedDate}</p>
                        </div>
                        <div class="flex items-center space-x-2">
                            <span class="text-xs bg-primary/20 text-primary px-2 py-1 rounded-full">${workout.duration} min</span>
                            <span class="text-xs bg-green-900/50 text-primary px-2 py-1 rounded-full">${totalVolume} kg</span>
                        </div>
                    </div>
                    <div class="mt-3 flex items-center justify-between">
                        <div class="flex items-center space-x-2">
                            <div class="h-2 w-20 bg-gray-600 rounded-full overflow-hidden">
                                <div class="h-full bg-primary rounded-full" style="width: ${workout.satisfaction}%"></div>
                            </div>
                            <span class="text-xs text-gray-400">${workout.satisfaction}%</span>
                        </div>
                        <div class="flex -space-x-1">
                            ${workout.exercises.slice(0, 3).map(ex => 
                                `<div class="h-6 w-6 rounded-full bg-gray-600 flex items-center justify-center text-xs">${ex.name.charAt(0).toUpperCase()}</div>`
                            ).join('')}
                            ${workout.exercises.length > 3 ? 
                                `<div class="h-6 w-6 rounded-full bg-gray-600 flex items-center justify-center text-xs">+${workout.exercises.length - 3}</div>` : 
                                ''
                            }
                        </div>
                    </div>
                `;
                
                workoutCard.addEventListener('click', () => showWorkoutDetails(workout.id));
                
                workoutsList.appendChild(workoutCard);
            });
        }

        function showWorkoutDetails(workoutId) {
            const workout = workouts.find(w => w.id === workoutId);
            if (!workout) return;
            
            selectedWorkoutId = workoutId;
            
            // Format date
            const workoutDate = new Date(workout.date);
            const formattedDate = workoutDate.toLocaleDateString('fr-FR', {
                weekday: 'long',
                day: 'numeric',
                month: 'long',
                year: 'numeric'
            });
            
            // Calculate total volume
            const totalVolume = workout.exercises.reduce((sum, ex) => {
                return sum + (ex.sets * ex.weight);
            }, 0);
            
            // Create modal content
            modalTitle.textContent = workout.name;
            
            let exercisesHtml = '';
            workout.exercises.forEach(ex => {
                exercisesHtml += `
                    <div class="bg-gray-700 p-3 rounded-lg">
                        <div class="flex justify-between items-center mb-1">
                            <h4 class="font-medium">${ex.name}</h4>
                            <div class="flex items-center space-x-2">
                                ${ex.unilateral ? 
                                    '<span class="text-xs bg-blue-900/50 text-blue-300 px-2 py-0.5 rounded-full">Unilatéral</span>' : 
                                    ''
                                }
                                ${workout.intensityDrop ? 
                                    '<span class="text-xs bg-purple-900/50 text-purple-300 px-2 py-0.5 rounded-full">Série dégressive</span>' : 
                                    ''
                                }
                            </div>
                        </div>
                        <div class="flex justify-between text-sm text-gray-400">
                            <span>${ex.sets} séries</span>
                            <span>${ex.weight} kg</span>
                        </div>
                    </div>
                `;
            });
            
            modalContent.innerHTML = `
                <div class="space-y-4">
                    <div>
                        <p class="text-gray-400">${formattedDate}</p>
                        <p class="text-gray-400">Durée: ${workout.duration} minutes</p>
                    </div>
                    
                    <div class="flex items-center justify-between">
                        <div>
                            <p class="text-sm text-gray-400">Satisfaction</p>
                            <div class="flex items-center space-x-2">
                                <div class="h-2 w-32 bg-gray-600 rounded-full overflow-hidden">
                                    <div class="h-full bg-primary rounded-full" style="width: ${workout.satisfaction}%"></div>
                                </div>
                                <span class="text-sm text-primary">${workout.satisfaction}%</span>
                            </div>
                        </div>
                        <div class="text-right">
                            <p class="text-sm text-gray-400">Tonnage total</p>
                            <p class="text-primary font-medium">${totalVolume} kg</p>
                        </div>
                    </div>
                    
                    <div class="pt-2">
                        <h4 class="font-medium text-gray-400 mb-2">Exercices (${workout.exercises.length})</h4>
                        <div class="space-y-2">
                            ${exercisesHtml}
                        </div>
                    </div>
                    
                    ${workout.multiDayDates && workout.multiDayDates.length > 1 ? 
                        `<div class="pt-2">
                            <h4 class="font-medium text-gray-400 mb-2">Séance sur plusieurs jours</h4>
                            <div class="flex flex-wrap gap-1">
                                ${workout.multiDayDates.map(date => {
                                    const d = new Date(date);
                                    return `<span class="text-xs bg-gray-600 px-2 py-1 rounded-full">${d.toLocaleDateString('fr-FR', { day: 'numeric', month: 'short' })}</span>`;
                                }).join('')}
                            </div>
                        </div>` : 
                        ''
                    }
                </div>
            `;
            
            workoutModal.classList.remove('hidden');
        }

        // Data Functions
        function saveWorkout(workoutData) {
            // Generate ID if new workout
            if (!workoutData.id) {
                workoutData.id = Date.now().toString();
                workouts.push(workoutData);
            } else {
                // Update existing workout
                const index = workouts.findIndex(w => w.id === workoutData.id);
                if (index !== -1) {
                    workouts[index] = workoutData;
                }
            }
            
            localStorage.setItem('workouts', JSON.stringify(workouts));
            renderCalendar();
            renderWorkouts();
        }

        function deleteWorkout(workoutId) {
            workouts = workouts.filter(w => w.id !== workoutId);
            localStorage.setItem('workouts', JSON.stringify(workouts));
            renderCalendar();
            renderWorkouts();
        }

        function exportData() {
            isExporting = true;
            dataModalTitle.textContent = 'Exporter les données';
            dataTextarea.value = JSON.stringify(workouts, null, 2);
            userPrefixContainer.classList.add('hidden');
            dataModal.classList.remove('hidden');
        }

        function importData() {
            isExporting = false;
            dataModalTitle.textContent = 'Importer des données';
            dataTextarea.value = '';
            userPrefixContainer.classList.remove('hidden');
            dataModal.classList.remove('hidden');
        }

        function confirmDataAction() {
            if (isExporting) {
                // Export logic (already handled by textarea value)
                dataModal.classList.add('hidden');
            } else {
                // Import logic
                try {
                    const importedWorkouts = JSON.parse(dataTextarea.value);
                    const prefix = userPrefixInput.value.trim();
                    
                    if (prefix) {
                        importedWorkouts.forEach(workout => {
                            workout.name = `${prefix} - ${workout.name}`;
                        });
                    }
                    
                    // Merge with existing workouts
                    workouts = [...workouts, ...importedWorkouts];
                    localStorage.setItem('workouts', JSON.stringify(workouts));
                    
                    renderCalendar();
                    renderWorkouts();
                    dataModal.classList.add('hidden');
                } catch (e) {
                    alert('Données JSON invalides');
                    console.error(e);
                }
            }
        }

        // Auth Functions (simulated)
        function checkAuthStatus() {
            // In a real app, this would check Firebase auth state
            isAuthenticated = localStorage.getItem('isAuthenticated') === 'true';
            updateAuthUI();
        }

        function updateAuthUI() {
            if (isAuthenticated) {
                authBtn.innerHTML = '<i class="fas fa-sign-out-alt mr-2"></i>Déconnexion';
            } else {
                authBtn.innerHTML = '<i class="fas fa-sign-in-alt mr-2"></i>Connexion';
            }
        }

        function toggleAuth() {
            if (isAuthenticated) {
                // Sign out
                isAuthenticated = false;
                localStorage.removeItem('isAuthenticated');
            } else {
                // Show auth modal
                authModal.classList.remove('hidden');
            }
            updateAuthUI();
        }

        // Event Listeners
        prevMonthBtn.addEventListener('click', () => {
            currentDate.setMonth(currentDate.getMonth() - 1);
            renderCalendar();
        });

        nextMonthBtn.addEventListener('click', () => {
            currentDate.setMonth(currentDate.getMonth() + 1);
            renderCalendar();
        });

        addExerciseBtn.addEventListener('click', addExercise);

        workoutForm.addEventListener('submit', (e) => {
            e.preventDefault();
            
            const workoutName = document.getElementById('workout-name').value;
            const workoutDate = document.getElementById('workout-date').value;
            const workoutDuration = document.getElementById('workout-duration').value;
            const workoutSatisfaction = document.getElementById('workout-satisfaction').value;
            const intensityDrop = document.getElementById('intensity-drop').checked;
            
            // Get exercises
            const exercises = [];
            const exerciseElements = document.querySelectorAll('.exercise');
            
            exerciseElements.forEach(exEl => {
                exercises.push({
                    name: exEl.querySelector('.exercise-name').value,
                    sets: parseInt(exEl.querySelector('.exercise-sets').value),
                    weight: parseFloat(exEl.querySelector('.exercise-weight').value),
                    unilateral: exEl.querySelector('.exercise-unilateral').checked
                });
            });
            
            // Create workout object
            const workoutData = {
                id: selectedWorkoutId,
                name: workoutName,
                date: workoutDate,
                duration: workoutDuration,
                satisfaction: workoutSatisfaction,
                intensityDrop: intensityDrop,
                exercises: exercises,
                multiDayDates: selectedDays.length > 0 ? selectedDays : [workoutDate],
                multiDayColor: selectedDays.length > 0 ? multiDayColorSelect.value : ''
            };
            
            saveWorkout(workoutData);
            
            // Reset form
            workoutForm.reset();
            exercisesContainer.innerHTML = '';
            addExercise();
            selectedDays = [];
            selectedWorkoutId = null;
            
            // Set current date
            document.getElementById('workout-date').value = new Date().toISOString().split('T')[0];
        });

        satisfactionSlider.addEventListener('input', () => {
            satisfactionValue.textContent = `${satisfactionSlider.value}%`;
        });

        closeModalBtn.addEventListener('click', () => {
            workoutModal.classList.add('hidden');
        });

        deleteWorkoutBtn.addEventListener('click', () => {
            if (confirm('Supprimer cette séance ?')) {
                deleteWorkout(selectedWorkoutId);
                workoutModal.classList.add('hidden');
            }
        });

        editWorkoutBtn.addEventListener('click', () => {
            const workout = workouts.find(w => w.id === selectedWorkoutId);
            if (!workout) return;
            
            // Fill form with workout data
            document.getElementById('workout-name').value = workout.name;
            document.getElementById('workout-date').value = workout.date;
            document.getElementById('workout-duration').value = workout.duration;
            document.getElementById('workout-satisfaction').value = workout.satisfaction;
            satisfactionValue.textContent = `${workout.satisfaction}%`;
            document.getElementById('intensity-drop').checked = workout.intensityDrop;
            
            // Clear exercises and add current ones
            exercisesContainer.innerHTML = '';
            
            workout.exercises.forEach(ex => {
                addExercise();
                const lastExercise = exercisesContainer.lastElementChild;
                lastExercise.querySelector('.exercise-name').value = ex.name;
                lastExercise.querySelector('.exercise-sets').value = ex.sets;
                lastExercise.querySelector('.exercise-weight').value = ex.weight;
                lastExercise.querySelector('.exercise-unilateral').checked = ex.unilateral;
            });
            
            // Set multi-day selection if applicable
            if (workout.multiDayDates && workout.multiDayDates.length > 1) {
                selectedDays = workout.multiDayDates;
                multiDayColorSelect.value = workout.multiDayColor || 'bg-green-500/30';
            }
            
            workoutModal.classList.add('hidden');
        });

        exportBtn.addEventListener('click', exportData);
        importBtn.addEventListener('click', importData);
        closeDataModalBtn.addEventListener('click', () => dataModal.classList.add('hidden'));
        confirmDataActionBtn.addEventListener('click', confirmDataAction);
        
        authBtn.addEventListener('click', toggleAuth);
        closeAuthModalBtn.addEventListener('click', () => authModal.classList.add('hidden'));
        googleAuthBtn.addEventListener('click', () => {
            // Simulate successful auth
            isAuthenticated = true;
            localStorage.setItem('isAuthenticated', 'true');
            updateAuthUI();
            authModal.classList.add('hidden');
        });

        clearSelectionBtn.addEventListener('click', () => {
            selectedDays = [];
            const selectedCells = document.querySelectorAll('.ring-2.ring-primary');
            selectedCells.forEach(cell => cell.classList.remove('ring-2', 'ring-primary'));
        });

        applyMultiDayBtn.addEventListener('click', () => {
            if (selectedDays.length === 0) {
                alert('Sélectionnez au moins un jour');
                return;
            }
            
            // Just update the selection UI, actual multi-day will be handled on form submit
            alert(`${selectedDays.length} jours sélectionnés pour une séance sur plusieurs jours`);
        });

        searchWorkoutsInput.addEventListener('input', (e) => {
            renderWorkouts(e.target.value);
        });

        clearSearchBtn.addEventListener('click', () => {
            searchWorkoutsInput.value = '';
            renderWorkouts();
        });

        // Initialize the app
        init();
    </script>
<p style="border-radius: 8px; text-align: center; font-size: 12px; color: #fff; margin-top: 16px;position: fixed; left: 8px; bottom: 8px; z-index: 10; background: rgba(0, 0, 0, 0.8); padding: 4px 8px;">Made with <img src="https://enzostvs-deepsite.hf.space/logo.svg" alt="DeepSite Logo" style="width: 16px; height: 16px; vertical-align: middle;display:inline-block;margin-right:3px;filter:brightness(0) invert(1);"><a href="https://enzostvs-deepsite.hf.space" style="color: #fff;text-decoration: underline;" target="_blank" >DeepSite</a> - 🧬 <a href="https://enzostvs-deepsite.hf.space?remix=johanpautrel/calendrier-interactif" style="color: #fff;text-decoration: underline;" target="_blank" >Remix</a></p></body>
</html>