body { 
    font-family: Arial, sans-serif; 
    font-size: 14px; 
    color: #333333; 
    background: #f4f7f6;
    margin: 0; 
    padding: 0; 
}

.header, .btn { 
    background-color: #d35400 !important; 
}

h1 { 
    font-size: 24px; 
    color: #004085; 
}

h2 { 
    font-size: 20px; 
    color: #333333; 
}

h3 { 
    font-size: 16px; 
    color: #444444; 
}