body {  
    background-color: #f0f8ff;  
    color: #2c3e50;  
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;  
}  

h1 {  
    color: #1abc9c;  
}  

a {  
    color: #3498db;  
    text-decoration: none;  
}  

a:hover {  
    color: #e74c3c;  
}  

.header {  
    background-color: #2980b9;  
    display: flex;  
    justify-content: space-between;  
    align-items: center;  
    padding: 20px;  
}  

.footer {  
    background-color: #2c3e50;  
    color: #ecf0f1;  
    text-align: center;  
    padding: 10px;  
    position: absolute;  
    bottom: 0;  
    width: 100%;  
}  

.button {  
    background-color: #e67e22;  
    border: none;  
    color: white;  
    padding: 10px 20px;  
    text-align: center;  
    text-decoration: none;  
    display: inline-block;  
    font-size: 16px;  
    margin: 4px 2px;  
    cursor: pointer;  
    border-radius: 12px;  
}  

.button:hover {  
    background-color: #d35400;  
}