body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

h1, h2, h3 {
    text-align: center;
    color: #2c3e50;
    margin-top: 20px;
}

h1 {
    font-size: 2.5em;
}

p {
    max-width: 800px;
    margin: 10px auto;
    font-size: 1.1em;
    background-color: #ffffff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

ul {
    list-style: none;
    padding: 0;
    margin: 20px auto;
    text-align: center;
}

ul li {
    display: inline;
    font-size: 1.1em;
    margin: 0 15px;
}

a {
    display: inline-block;
    margin: 10px 15px 10px 0;
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

a:hover {
    background-color: #2980b9;
}

.link-container, nav {
    text-align: center;
    margin: 20px 0;
}

form {
    text-align: center;
    margin: 20px auto;
}

textarea {
    width: 80%;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-family: monospace;
    font-size: 1em;
    margin-bottom: 20px;
    resize: vertical;
}

input[type="submit"] {
    padding: 10px 20px;
    background-color: #27ae60;
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
    background-color: #219150;
}

pre {
    background-color: #eee;
    padding: 10px;
    border-radius: 5px;
    max-width: 800px;
    margin: 10px auto;
    overflow-x: auto;
    text-align: left;
}