/* feuille de style pour le TP */

/* style general de la page */
body {
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
    margin: 20px;
    color: #333;
}

/* le bandeau titre */
header {
    background-color: #3498db;
    color: white;
    padding: 15px;
    text-align: center;
    margin-bottom: 20px;
}

header h1 {
    margin: 0;
}

/* les sections en general */
section {
    background-color: white;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
}

section h2 {
    color: #2980b9;
    margin-top: 0;
}

/* la liste des messages */
#messages {
    list-style: none;
    padding: 0;
}

#messages li {
    border-left: 4px solid #3498db;
    padding: 8px 12px;
    margin-bottom: 8px;
    background-color: #ecf0f1;
}

/* les champs du formulaire */
input[type="text"] {
    padding: 6px;
    width: 300px;
    margin-bottom: 5px;
}

textarea {
    padding: 6px;
    margin-bottom: 5px;
}

/* les boutons */
button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 8px 15px;
    cursor: pointer;
    margin-right: 5px;
    margin-bottom: 10px;
}

button:hover {
    background-color: #2980b9;
}

/* le pied de page */
footer {
    text-align: center;
    color: gray;
    margin-top: 20px;
    font-size: 0.9em;
}

/* style sombre, on l'applique avec JS */
body.dark {
    background-color: #222;
    color: #eee;
}

body.dark header {
    background-color: #1a252f;
}

body.dark section {
    background-color: #333;
    border-color: #555;
}

body.dark #messages li {
    background-color: #2c2c2c;
}

body.dark input[type="text"],
body.dark textarea {
    background-color: #444;
    color: #eee;
    border: 1px solid #666;
}