body{

background:#f5f7fb;

overflow-x:hidden;

font-family:Arial,sans-serif;

}

.wrapper{

display:flex;

min-height:100vh;

}

.sidebar{

width:260px;

background:#212529;

color:#fff;

position:fixed;

left:0;

top:0;

bottom:0;

transition:.3s;

overflow:auto;

z-index:1040;

}

.logo{

padding:18px;

font-size:22px;

font-weight:bold;

text-align:center;

background:#198754;

}

.sidebar ul{

margin:0;

padding:0;

list-style:none;

}

.sidebar li a{

display:block;

padding:14px 20px;

color:#fff;

text-decoration:none;

}

.sidebar li a:hover{

background:#198754;

}

.content{

margin-left:260px;

width:100%;

transition:.3s;

}

.topbar{

height:60px;

background:#fff;

display:flex;

align-items:center;

padding:0 20px;

box-shadow:0 2px 10px rgba(0,0,0,.08);

position:sticky;

top:0;

z-index:1030;

}

#menuBtn{

border:none;

background:none;

font-size:22px;

margin-right:15px;

}

.overlay{

display:none;

}

@media(max-width:992px){

.sidebar{

left:-260px;

}

.sidebar.show{

left:0;

}

.content{

margin-left:0;

}

.overlay{

position:fixed;

top:0;

left:0;

right:0;

bottom:0;

background:rgba(0,0,0,.4);

z-index:1035;

display:none;

}

.overlay.show{

display:block;

}

}

@media print {
    @page { margin: 0; }
    body { margin: 1cm; }
}