body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
    color: #c9d1d9;          
    background-color: #0d1117; 
}

header {
    text-align: center;
    padding-bottom: 40px;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

h2 {
    border-bottom: 2px solid #58a6ff; 
    padding-bottom: 5px;
    margin-top: 30px;
}

ul {
    list-style-type: none;
    padding-left: 0;
}

ul li {
    margin: 5px 0;
}

a {
    color: #58a6ff; 
    text-decoration: