* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    margin-bottom: 30px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-right: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
    padding: 5px;
}

nav ul li a.active {
    border-bottom: 2px solid #0066cc;
}

nav ul li a:hover {
    color: #0066cc;
}

main {
    min-height: 70vh;
}

h1 {
    color: #0066cc;
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
}

footer {
    margin-top: 30px;
    text-align: center;
    color: #666;
    padding: 20px 0;
    border-top: 1px solid #eee;
}