body {
    background-color: #e0f7fa;
    color: #004d40;
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
}

header {
    background-color: #004d40;
    color: #e0f7fa;
    padding: 10px 20px;
    text-align: center;
}

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

a {
    color: #e0f7fa;
    text-decoration: none;
    padding: 8px 16px;
    transition: background-color 0.3s ease-in-out;
}

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

main {
    margin: 20px;
}

footer {
    background-color: #004d40;
    color: #e0f7fa;
    text-align: center;
    padding: 10px;
}

button {
    background-color: #00796b;
    color: #e0f7fa;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

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