header {
    color: rgb(255, 255, 255);
    background-color: #34333e;
    text-align: center;
    font-weight: bold;
    font-size: 40px;
    padding: 5px;
}

header h1 {
    background-color: #34333e;
    height: 100px;
    margin: 0px;
    display: flex;
    justify-content: center;
    align-items: center;
}

footer {
    position: fixed;
    background-color: #34333e;
    bottom: 0;
    color: white;
    width: 100%;
    padding: 20px;
    text-align: center;
    z-index: 5;
}

body {
    background-color: #4c4b58;
    color: white;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    padding-bottom: 80px;
}

nav {
    background-color: #23222c;
    padding: 10px 0;
}

nav ul {
    list-style-type: none;
    text-align: center;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 10px;
}

nav ul li a {
    color: white;
    padding: 5px;
    text-decoration: none;
    border-radius: 5px;
    transition: all 500ms;
}

nav ul li a:hover {
    background-color: #5e5b8a;
    font-size: 20px;
}

.card {
    border: 1px solid #34343c;
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 20px;
    background-color: #24242c;
}

.card h2 {
    color: white;
    margin: 0 0 10px 0;
    font-size: 24px;
}

.card h3 {
    color: #ddd;
    margin: 15px 0 10px 0;
    font-size: 20px;
}

.card p,
.card li {
    font-size: 18px;
    line-height: 1.5;
    margin-bottom: 10px;
}

.card ul {
    margin-left: 20px;
    margin-bottom: 10px;
}

.card code {
    background-color: #1a1a20;
    padding: 2px 5px;
    border-radius: 3px;
    font-family: monospace;
    color: #ffd700;
}

.card pre {
    background-color: #1a1a20;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: monospace;
    color: #ffd700;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

a {
    color: #8ab4f8;
}

img {
    max-width: 100%;
    border-radius: 5px;
    margin-top: 10px;
    display: block;
}

.source {
    font-size: 0.8em;
    color: #aaa;
    margin-top: 5px;
    font-style: italic;
    display: block;
}