body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
}
.login-container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
    max-width: 400px;
}
input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.connexion {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
* {
    box-sizing: border-box;
}
.connexion:hover {
    background-color: #218838;
}

.retour{
    background-color: #007BFF; 
    color: white; 
    border: none; 
    padding: 5px 10px; 
    border-radius: 5px;
}