body {
    font-family: 'Open Sans', sans-serif !important;
    background-color: #f5f5f5;
    padding: 20px 0;
}
.header, .footer {
    border-radius: 10px;
    margin-bottom: 20px;
    padding: 20px;
}
.header {
    background-color: #FFC107; /* Sunflower Yellow */
    text-align: center;
}
.sidebar-content {
    background-color: #007BFF; /* Blue */
    border-radius: 10px;
    color: white;
    padding: 20px;
    margin-bottom: 20px;
}
.content {
    background-color: #f5f5f5; /* Light grey */
}
.content-body {
    border-radius: 10px;
    color: black;
    padding: 20px;
    margin-bottom: 20px;
}
.footer {
    background-color: #343a40; /* Dark grey */
    text-align: center;
    color: white;
}
h1, h2, h3, h4, h5, h6 {
    font-weight: 700; /* Bold */
}