body {
    background:#f4f6f9;
    font-family: Arial;
}

.navbar {
    background:#2c3e50;
}

.sidebar {
    width:220px;
    height:100vh;
    position:fixed;
    background:#34495e;
    color:white;
    padding:15px;
}

.sidebar a {
    color:white;
    display:block;
    padding:10px;
    text-decoration:none;
}

.sidebar a:hover {
    background:#2c3e50;
}

.content {
    margin-left:240px;
    padding:20px;
}

.card {
    border-radius:10px;
    box-shadow:0 2px 8px rgba(0,0,0,0.1);
}