/* Basic reset and layout */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    min-height: 100vh;
}

/* Navigation menu - positioned on the left side */
.navigation-menu {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
    border-right: 1px solid #ddd;
}

.navigation-menu ul {
    list-style: none;
}

.navigation-menu li {
    margin-bottom: 10px;
}

.navigation-menu a {
    text-decoration: none;
    color: #333;
    display: block;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.navigation-menu a:hover {
    background-color: #e0e0e0;
}

/* Main content area */
main {
    flex: 1;
    padding: 40px;
}

main h1 {
    margin-bottom: 20px;
    color: #333;
}

main p {
    line-height: 1.6;
    color: #666;
}