body{
background:#0b0f1a;
color:white;
font-family:Arial;
}

.sidebar{
width:220px;
height:100vh;
position:fixed;
background:#111827;
padding:10px;
}

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

.grid{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:10px;
}

.card{
background:#111827;
padding:20px;
border-radius:12px;
border-left:4px solid #1e40af;
}