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

.container {
    width: 80%;
    margin: 0 auto;
}

header {
    background: #333;
    color: #fff;
    padding: 1em 0;
}

header h1 {
    margin: 0;
    padding: 0;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 1em;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 2em 0;
}

section {
    margin-bottom: 2em;
    padding: 2em 0;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

section h2 {
    margin-top: 0;
}

button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 1em 2em;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background-color: #555;
}

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