body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f2f2f2;
    color: #222;
}
header {
    background-color: #4a90e2;
    color: white;
    padding: 30px 20px;
    text-align: center;
}
header nav {
    margin-bottom: 15px;
}
header nav a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    font-weight: bold;
}
header nav a:hover {
    text-decoration: underline;
}
h1 {
    margin: 0;
    font-size: 32px;
}
.container {
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
}
h2 {
    color: #4a90e2;
    margin-top: 30px;
    font-size: 22px;
    border-bottom: 2px solid #ddd;
    padding-bottom: 5px;
}
p, li {
    font-size: 16px;
    line-height: 1.6;
    margin-top: 10px;
}
ul {
    padding-left: 20px;
}
footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    color: #666;
    font-size: 14px;
}
.button {
    display: inline-block;
    background-color: #4a90e2;
    color: white;
    padding: 12px 25px;
    margin-top: 20px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
}
.button:hover {
    background-color: #357abd;
}