html {
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    color: #222;
}

body {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px 20px;
    line-height: 1.6;
}

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

h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

h2 {
    margin-top: 30px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}

.subtitle {
    color: #666;
    font-size: 1.1rem;
}

section {
    background: #ffffff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
}

a {
    color: #0057b8;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul {
    padding-left: 25px;
}

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