body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f0f5;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

nav {
    background-color: #000000;
    width: 100%;
    padding: 10px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: center;
}

.nav-button {
    background-color: #fff;
    color: #000000;
    padding: 10px 20px;
    margin: 0 10px;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.nav-button.selected{
	background-color: #555;
}

.nav-button:hover {
    background-color: #e0e0e0;
}

.container {
    max-width: 800px;
    width: 90%;
    padding: 20px;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
    border-radius: 8px;
}

h1 {
    color: #000000;
}

p.text {
	text-align: justify;
	line-height: 1.5em;
	text-indent: 20px;
}

ol {
	line-height: 1.5em;
}

ol li {
	margin: 20px 0;
}

footer {
    width: 100%;
    padding: 10px 0;
    background-color: #f0f0f5;
    text-align: center;
    margin-top: auto;
}

@media (max-width: 600px) {
    nav {
        flex-direction: column;
		align-items: center;
    }
    
    .nav-button {
        margin: 5px 0;
        width: 80%;
        text-align: center;
    }
    
    .container {
        padding: 15px;
    }
}