body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

header {
    background: #333;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

nav a {
    color: #fff;
    text-decoration: none;
    padding: 0 50px;
}

main {
    padding: 20px;
    max-width: 960px;
    margin: auto;
    background: #fff;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    margin-top: 20px;
    border-radius: 8px;
}

footer {
    text-align: center;
    padding: 20px;
    background: #333;
    color: #fff;
    margin-top: 20px;
}

h1, h2, h3 {
    color: #333;
}

article {
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
    margin-bottom: 20px;
}

article:last-child {
    border-bottom: none;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.hero {
    background: #007bff;
    color: white;
    padding: 40px;
    text-align: center;
    margin-bottom: 20px;
    border-radius: 8px;
}