body{
    margin:0;
    background:#f4f7fb;
    font-family:Inter,"Segoe UI",Arial,sans-serif;
    color:#1f2937;
}

.app{
    display:flex;
    min-height:100vh;
}

.sidebar{
    width:260px;
    background:#1f2937;
    color:#fff;
    display:flex;
    flex-direction:column;
    position:fixed;
    left:0;
    top:0;
    bottom:0;
    box-shadow:4px 0 20px rgba(0,0,0,.08);
}

.sidebar-header{
    height:80px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-bottom:1px solid rgba(255,255,255,.08);
}

.logo{
    font-size:28px;
    font-weight:700;
    color:#fff;
}

.sidebar-menu{
    display:flex;
    flex-direction:column;
    padding:20px 15px;
    gap:8px;
    flex:1;
}

.menu-item{
    height:52px;
    border-radius:12px;
    display:flex;
    align-items:center;
    gap:12px;
    padding:0 18px;
    background:transparent;
    color:#d6d9df;
    transition:.25s;
    font-size:16px;
    font-weight:500;
}

.menu-item:hover{
    background:#374151;
    color:#fff;
}

.menu-item.active{
    background:#4f46e5;
    color:#fff;
}

.sidebar-footer{
    padding:20px;
    text-align:center;
    border-top:1px solid rgba(255,255,255,.08);
    color:#cbd5e1;
}

.workspace{
    margin-left:260px;
    width:calc(100% - 260px);
    display:flex;
    flex-direction:column;
    min-height:100vh;
}

.topbar{
    height:80px;
    background:#fff;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 35px;
    border-bottom:1px solid #e5e7eb;
    box-shadow:0 3px 12px rgba(0,0,0,.04);
}

.topbar-left h1{
    font-size:36px;
    margin:0;
}

.topbar-left p{
    margin-top:5px;
    color:#6b7280;
}

.topbar-right{
    display:flex;
    gap:12px;
}

.content{
    flex:1;
    padding:35px;
}

.dashboard-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:25px;
    margin-bottom:35px;
}

.content-card{
    background:#fff;
    border-radius:16px;
    padding:30px;
    box-shadow:0 10px 30px rgba(15,23,42,.08);
}

.footer{
    height:60px;
    background:#fff;
    border-top:1px solid #e5e7eb;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 35px;
}

@media(max-width:1200px){

.dashboard-grid{

grid-template-columns:repeat(2,1fr);

}

}

@media(max-width:768px){

.sidebar{

transform:translateX(-100%);

}

.workspace{

margin-left:0;

width:100%;

}

.dashboard-grid{

grid-template-columns:1fr;

}

.topbar{

padding:20px;

height:auto;

flex-direction:column;

align-items:flex-start;

gap:15px;

}

.content{

padding:20px;

}

}