body {
    font-family: Arial, sans-serif;
    background-color: #f0f5f0;
    color: #333;
    margin: 0;
    padding: 0;
    text-align: center;
}

header {
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo {
    width: 120px;
    height: auto;
    margin-bottom: 10px;
}

h1 {
    margin: 10px 0;
}

main {
    padding: 20px;
}

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

ul li {
    margin: 10px 0;
}

a {
    color: #1abc9c;
    text-decoration: none;
}

a.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #1abc9c;
    color: white;
    border-radius: 8px;
}

a.btn:hover {
    background-color: #17a085;
}