body{
background:#f1f3f6;
font-family:Roboto;
}

.card{
border-radius:15px;
box-shadow:0 5px 15px rgba(0,0,0,0.1);
}

.btn{
border-radius:10px;
padding:12px;
}

.sidebar{
height:100vh;
background:#1e2a38;
color:white;
padding:20px;
}

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

.topbar{
background:white;
padding:15px;
box-shadow:0 2px 5px rgba(0,0,0,0.1);
}