body {
    margin: 0;
    font-family: Arial, sans-serif;
}
header {
    background: #222;
    color: white;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header nav a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
}
.container {
    display: flex;
}
.sidebar {
    background: #f1f1f1;
    padding: 10px;
    width: 250px;
    height: 100vh;
    overflow-y: auto;
}
.sidebar a {
    display: block;
    padding: 8px;
    color: black;
    text-decoration: none;
}
.sidebar a:hover, .sidebar a.active {
    background: #04AA6D;
    color: white;
}
.content {
    flex: 1;
    padding: 20px;
}
.lang-switch {
    background: #04AA6D;
    border: none;
    padding: 5px 10px;
    color: white;
    cursor: pointer;
}