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

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

h1 {
    font-size: 2.5em;
    margin: 0.5em 0;
}

nav {
    margin: 10px;
}

nav a {
    color: #b2dfdb;
    text-decoration: none;
    margin: 0 15px;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
}

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