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

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

h3 {
    color: #666;
    text-align: center;
    margin-top: 0;
}

p {
    color: #555;
    text-align: center;
    margin: 20px 0;
}

ol {
    max-width: 400px;
    margin: 0 auto;
    text-align: left;
}

li {
    margin: 10px 0;
    color: #555;
}

strong {
    color: #2c3e50;
}

em {
    text-align: center;
    display: block;
}

a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 150px;
    background-color: #2c3e50;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
}

nav a {
    display: block;
    margin: 10px 15px;
    padding: 12px 15px;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    text-align: center;
}

nav a:hover {
    background-color: #2980b9;
    text-decoration: none;
}

.content {
    margin-left: 150px;
    padding: 20px;
    flex: 1;
}

#contact {
    margin-top: 40px;
    padding: 30px;
    background-color: #fff;
    border-radius: 8px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#contact h2 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.contact-info {
    text-align: center;
}

footer {
    margin-top: 40px;
    padding: 20px;
    text-align: center;
    color: #777;
    font-size: 0.9em;
}