body {  
    background-color: #DFFFD6; /* soft pastel green reminiscent of frogs */  
    font-family: 'Roboto', sans-serif;  
    margin: 0;  
    padding: 0;  
}

.header {  
    background-color: #4CAF50; /* frog green */  
    color: white;  
    text-align: center;  
    padding: 1em 0;  
}

.button {  
    background-color: #008CBA; /* a nice blue for contrast */  
    border: none;  
    color: white;  
    padding: 10px 24px;  
    text-align: center;  
    text-decoration: none;  
    display: inline-block;  
    font-size: 16px;  
    margin: 4px 2px;  
    transition-duration: 0.4s;  
    cursor: pointer;  
    border-radius: 12px;  
}

.button:hover {  
    background-color: white;  
    color: black;  
    border: 2px solid #008CBA;  
}

.link {  
    color: #32CD32; /* lime green */  
    text-decoration: none;  
}

.footer {  
    background-color: #f1f1f1;  
    color: #333;  
    text-align: center;  
    padding: 1em 0;  
    font-size: 14px;  
}

h1, h2, h3 {  
    color: #4CAF50;  
}

p {  
    color: #333;  
    font-size: 16px;  
    line-height: 1.5;  
    margin: 10px 0;  
}