body {
    background-color: #e0f7fa;
    font-family: 'Arial', sans-serif;
    color: #004d40;
}

header {
    background-color: #00796b;
    padding: 1em;
    text-align: center;
    color: #ffffff;
    font-size: 2em;
}

footer {
    background-color: #004d40;
    padding: 0.5em;
    text-align: center;
    color: #ffffff;
    font-size: 1em;
}

a {
    color: #009688;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button {
    background-color: #00796b;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}

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