body {
    background-color: #e0f7fa;
    font-family: 'Comic Sans MS', cursive, sans-serif;
    color: #00695c;
    margin: 0;
    padding: 0;
}

header {
    background-color: #004d40;
    color: #ffffff;
    text-align: center;
    padding: 20px 0;
}

nav {
    background-color: #00796b;
    display: flex;
    justify-content: center;
    padding: 10px 0;
}

nav a {
    color: #ffffff;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

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

footer {
    background-color: #004d40;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}

button {
    background-color: #00897b;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #004d40;
}