body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #e6f0ff;
}

.page {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    background: #1f2937;
    color: #ffffff;
    padding: 20px;
    box-sizing: border-box;
}

.sidebar h3 {
    margin-top: 0;
}

.sidebar a {
    display: block;
    color: #ffffff;
    text-decoration: none;
    margin: 10px 0;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
}