/* Layout */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: row;
}

/* Content-Bereich */
main {
    flex: 1;
    padding: 20px;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: #f4f4f4;
    padding: 20px;
    border-left: 1px solid #ddd;
    height: 100vh;
    overflow-y: auto;
}

.sidebar h2 {
    font-size: 1.5em;
    margin-top: 0;
}

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

.sidebar ul li {
    margin: 5px 0;
}

.sidebar ul li a {
    text-decoration: none;
    color: #333;
}

.sidebar ul li a:hover {
    color: #007BFF;
}