* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin-top: 5%;
}

.connexion {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 5rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background-color: #ffffff;
    width: 600px;
    height: 500px;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
}

#retour_accueil {
    height: 40px;
    padding: 10px;
    font-size: 1rem;
    border: none;
    background-color: #35424a;
    color: #ffffff;
    cursor: pointer;
}

#retour_accueil:hover {
    background-color: #495e6b;
}

h1 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

label {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

input[type="text"],
input[type="password"] {
    font-size: 1rem;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border: 1px solid #cccccc;
    border-radius: 0.5rem;
    width: 100%;
}

input[type="submit"] {
    background-color: #35424a;
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
}

input[type="submit"]:hover {
    background-color: #2d3c45;
}

p {
    font-size: 1rem;
    color: #ff0000;
    margin-top: 1rem;
    font-weight: bold;
}