```typescript import React from "react"; const CourseManager: React.FC = () => { const [courses, setCourses] = React.useState<{ title: string; details: string; deadline: string }[]>([]); const [courseTitle, setCourseTitle] = React.useState(""); const [courseDetails, setCourseDetails] = React.useState(""); const [courseDeadline, setCourseDeadline] = React.useState(""); const addCourse = () => { if (courseTitle && courseDetails) { setCourses([...courses, { title: courseTitle, details: courseDetails, deadline: courseDeadline }]); setCourseTitle(""); setCourseDetails(""); setCourseDeadline(""); } }; return (

Gestion des Cours

setCourseTitle(e.target.value)} className="border p-2 rounded mb-2 w-full" />

setCourseDetails(e.target.value)}
                className="border p-2 rounded mb-2 w-full"
            />
            <input
                type="date"
                value={courseDeadline}
                onChange={(e) => setCourseDeadline(e.target.value)}
                className="border p-2 rounded mb-2 w-full"
            />
            <button onClick={addCourse} className="bg-blue-500 text-white p-2 rounded">Ajouter Cours</button>

<ul className="mt-4">
                {courses.map((course, index) => (
                    <li key={index} className="border p-2 rounded mt-2 bg-gray-50">
                        <h3 className="font-bold">{course.title}</h3>
                        <p>{course.details}</p>
                        <p className="text-sm text-gray-500">Deadline: {course.deadline}</p>
                    </li>
                ))}
            </ul>
        </div>
    );
};

const Calendar: React.FC = () => {
    return (
        <div className="p-4 border rounded-lg shadow-lg">
            <h2 className="text-lg font-bold">Calendrier</h2>
            {/* Calendar Component Logic Here */}
        </div>
    );
};

const ProgressTracker: React.FC = () => {
    return (
        <div className="p-4 border rounded-lg shadow-lg">
            <h2 className="text-lg font-bold">Suivi de Progression</h2>
            {/* Progress Tracker Logic Here */}
        </div>
    );
};

const TaskManager: React.FC = () => {
    return (
        <div className="p-4 border rounded-lg shadow-lg">
            <h2 className="text-lg font-bold">Gestion des Tâches</h2>
            {/* Task Manager Logic Here */}
        </div>
    );
};

const BadgeSystem: React.FC = () => {
    return (
        <div className="p-4 border rounded-lg shadow-lg">
            <h2 className="text-lg font-bold">Système de Badges</h2>
            {/* Badge System Logic Here */}
        </div>
    );
};

const TimeTracking: React.FC = () => {
    return (
        <div className="p-4 border rounded-lg shadow-lg">
            <h2 className="text-lg font-bold">Suivi du Temps</h2>
            {/* Time Tracking Logic Here */}
        </div>
    );
};

export default function App() {
    return (
        <div className="min-h-screen bg-gray-100 p-8">
            <h1 className="text-3xl font-bold mb-6">Application de Gestion de Cours</h1>
            <CourseManager />
            <Calendar />
            <ProgressTracker />
            <TaskManager />
            <BadgeSystem />
            <TimeTracking />
        </div>
    );
}
```</article></body></html>