```html
        <!-- Exercises Section -->
        <section id="exercices" class="py-16 px-6 bg-white">
            <div class="max-w-5xl mx-auto">
                <h2 class="text-3xl font-bold text-center text-indigo-800 mb-12">Exercices Interactifs</h2>
                <div class="grid grid-cols-1 md:grid-cols-2 gap-8">
                    <!-- Exercise Card -->
                    <div class="bg-gradient-to-br from-blue-50 to-indigo-50 p-6 rounded-2xl shadow-lg hover:shadow-xl transition transform hover:-translate-y-1 border border-indigo-100">
                        <h3 class="text-2xl font-bold text-indigo-700 mb-4">Racines Quadratiques</h3>
                        <p class="text-gray-600 mb-6">Résolvez cette équation du second degé et vérifier vos réponses avec des commentaires détaillés.</p>
                        <div class="bg-white p-5 rounded-xl shadow-sm border border-gray-100">
                            <p class="text-gray-700 mb-4">Solving: 3x² - 2x - 8 = 0</p>
                            <form class="space-y-4">
                                <div>
                                    <label class="block text-sm font-medium text-gray-700 mb-1">Valeur x₁:</label>
                                    <input type="text" class="w-full px-4 py-2 rounded-lg border border-gray-300 focus:ring-2 focus:ring-indigo-400 focus:border-transparent shadow-sm">
                                </div>
                                <div>
                                    <label class="block text-sm font-medium text-gray-700 mb-1">Valeur x₂:</label>
                                    <input type="text" class="w-full px-4 py-2 rounded-lg border border-gray-300 focus:ring-2 focus:ring-indigo-400 focus:border-transparent shadow-sm">
                                </div>
                            </form>
                            <button type="submit" class="bg-indigo-600 hover:bg-indigo-700 w-full text-white font-bold py-3 px-4 rounded-lg shadow-md hover:shadow-lg transition">
                                Vérifier la Réponse
                            </button>
                        </div>
                    </div>
                    
                    <!-- Exercise Features -->
                    <div class="space-y-6">
                        <div class="bg-gradient-to-br from-blue-50 to-indigo-50 p-6 rounded-2xl shadow-lg hover:shadow-xl transition transform hover:-translate-y-1 border border-indigo-100">
                            <div class="flex items-start">
                                <div class="bg-indigo-100 rounded-lg w-10 h-10 flex items-center justify-center mr-4">
                                    <svg class="w-6 h-6 text-indigo-600" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7-7-7 7m14 0a7 7 0 010 14m0-14a7 7 0 010 14m0-7h11m-11 0a7 7 0 010 14m0-14a7 7 0 010 14"></path>
                                    </svg>
                                </div>
                                <div>
                                    <h3 class="text-lg font-bold text-indigo-700">Exercices Adaptes</h3>
                                    <p class="text-gray-600 mt-1">Construites sur un systeme de positionnement qui s'adjuste à votre niveau.</p>
                                </div>
                            </div>
                        </div>
                        <div class="bg-gradient-to-br from-blue-50 to-indigo-50 pounded-2xl shadow-lg hover:shadow-xl transition transform hover:-translate-y-1 border border-indigo-100">
                            <div class="flex items-start">
                                <div class="bg-indigo-100 rounded-lg w-10 h-10 flex items-center justify-center mr-4">
                                    <svg class="w-6 h-6 text-indigo-600" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7-7-7 7m14 0a7 7 0 010 14m0-14a7 7 0 010 14m0-7h11m-11 0a7 7 0 010 14m0-14a7 7 0 010 14"></path>
                                    </svg>
                                </div>
                                <div>
                                    <h3 class="text-lg font-bold text-indigo-700">Feedback Immédiat</h3>
                                    <p class="text-gray-600 mt-1">Recevez un apercu instantané et des suggestion pour corriger les erreurs.</p>
                                </div>
                            </div>
                        </div>
                        <div class="bg-gradient-to-br from-blue-50 to-indigo-50 p-6 rounded-2xl shadow-lg hover:shadow-xl transition transform hover:-translate-y-1 border border-indigo-100">
                            <div class="flex items-start">
                                <div class="bg-indigo-100 rounded-lg w-10 h-10 flex items-center justify-center mr-4">
                                    <svg class="w-6 h-6 text-indigo-600" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7-7-7 7m14 0a7 7 0 010 14m0-14a7 7 0 010 14m0-7h11m-11 0a7 7 0 010 14m0-14a7 7 0 010 14"></path>
                                    </svg>
                                </div>
                                <div>
                                    <h3 class="text-lg font-bold text-indigo-700">Outils Éducative</h3>
                                    <p class="text-gray-600 mt-1">Utiliser un générateur de problèmes pour créer des questions sur mesure.</p>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- CTA Section -->
        <section class="py-16 px-6 bg-gradient-to-b from-indigo-100 via-blue-100 to-white">
            <div class="max-w-3xl mx-auto text-center">
                <h3 class="text-3xl font-bold text-indigo-800 mb-6">Prêt à Maîtriser l'Algébre?</h3>
                <p class="text-lg text-gray-700 mb-8 leading-relaxed">
                    Testez vos connaissances avec des exercices conçus par des expertes et suivez vos progrès en temps réel.
                </p>
                <div class="flex flex-col sm:flex-row gap-4 justify-center">
                    <a href="/algébre/s'inscrire.html" class="bg-indigo-600 hover:bg-indigo-700 text-white font-bold py-4 px-10 rounded-lg shadow-lg hover:shadow-2xl transition transform hover:-translate-y-1">
                        S'insscrire Maintenant
                    </a>
                    <a href="/algébre/forum.html" class="bg-white text-indigo-600 font-bold py-4 px-10 rounded-lg border border-indigo-300 hover:bg-indigo-50 transition">
                        Parier au Forum
                    </a>
                </div>
            </div>
        </section>

        <!-- Footer (already included from index.html, no need to duplicate) -->
```