body {
    background-color: #f5f5f5;
    display: flex;
    min-height: 100vh;
}

.sidenav {
    background-color: #2d2d2d;
    padding: 20px;
    width: 250px;
}

.sidenav a {
    color: #ffffff;
    font-size: 1.1rem;
}

.sidenav a:hover {
    background-color: #3d3d3d;
}

.sidenav .brand-logo {
    font-size: 1.5rem;
    color: #fff;
    padding: 20px 0;
    display: block;
    text-align: center;
}

.content {
    margin-left: 250px;
    padding: 2rem;
    width: calc(100% - 250px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

@media only screen and (max-width: 992px) {
    .sidenav {
        width: 200px;
    }
    .content {
        margin-left: 200px;
        width: calc(100% - 200px);
    }
}