body {
    margin: 0;
    font-family: Arial, sans-serif;
    /* <-- background-image: url('../image/fond.jpg'); <-- chemin vers l'image */
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    background-color: #808dd0;
    color: #333;
}

.container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: rgba(255, 255, 255, 0.6);
    padding: 20px;
    text-align: center;
}

.main {
    display: flex;
    flex: 1;
}

.sidebar {
    width: 200px;
    background-color: rgba(255, 255, 255, 0.6);
    padding: 15px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar a {
    text-decoration: none;
    color: #236FA1;
}

.content {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.6);
    padding: 20px;
}
.sidebar ul ul {
    margin-left: 15px; /* Décale les sous-titres */
    padding-left: 10px;
}

.sidebar ul ul li {
    list-style-type: disc; /* Ajoute éventuellement un petit rond */
}
.sidebar,
.content,
header {
    background-color: rgba(255, 255, 255, 0.6); /* opacité réduite */
}