*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial,Helvetica,sans-serif;
    background:#eef3f8;
    color:#263646;
}

a{
    text-decoration:none;
}

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

/* ==========================
   Sidebar
========================== */

.sidebar{

    width:260px;
    background:#12314b;
    color:white;

    display:flex;
    flex-direction:column;

    box-shadow:3px 0 18px rgba(0,0,0,.15);

}

.brand{

    display:flex;
    align-items:center;

    gap:14px;

    padding:25px;

    border-bottom:1px solid rgba(255,255,255,.12);

}

.brand-mark{

    width:52px;
    height:52px;

    border-radius:14px;

    background:#2b6ca3;

    display:flex;
    align-items:center;
    justify-content:center;

    font-size:22px;
    font-weight:bold;

}

.brand-title{

    font-size:20px;
    font-weight:bold;

}

.brand-subtitle{

    color:#b9c7d4;
    font-size:13px;

}

/* ==========================
Navigation
========================== */

.nav-menu{

    padding:18px;

    display:flex;
    flex-direction:column;

    gap:8px;

}

.nav-menu a{

    color:white;

    padding:12px 16px;

    border-radius:10px;

    transition:.25s;

}

.nav-menu a:hover{

    background:#2b6ca3;

}

.nav-menu a.active{

    background:#f4c542;
    color:#222;

    font-weight:bold;

}

.nav-section{

    margin-top:18px;

    margin-bottom:6px;

    color:#7fa4c3;

    font-size:12px;

    text-transform:uppercase;

    letter-spacing:1px;

}

/* ==========================
Sidebar Footer
========================== */

.sidebar-footer{

    margin-top:auto;

    padding:20px;

    border-top:1px solid rgba(255,255,255,.10);

}

.sidebar-footer a{

    color:white;

}

/* ==========================
Main Content
========================== */

.main-content{

    flex:1;

    display:flex;
    flex-direction:column;

}

.topbar{

    height:78px;

    background:white;

    display:flex;

    justify-content:space-between;

    align-items:center;

    padding:0 30px;

    border-bottom:1px solid #d9e2ec;

}

.topbar h1{

    color:#174466;

    font-size:28px;

}

.user-pill{

    background:#eef6ff;

    padding:10px 16px;

    border-radius:999px;

    display:flex;

    flex-direction:column;

    align-items:flex-end;

}

.user-pill span{

    color:#64748b;

    font-size:12px;

}

.content-wrap{

    padding:30px;

}

/* ==========================
Cards
========================== */

.card{

    background:white;

    border-radius:16px;

    padding:24px;

    box-shadow:0 8px 18px rgba(0,0,0,.08);

}

.stats{

    display:grid;

    grid-template-columns:repeat(4,1fr);

    gap:20px;

}

.stat-card{

    background:white;

    border-radius:16px;

    padding:24px;

    box-shadow:0 8px 18px rgba(0,0,0,.08);

}

.stat-card h3{

    color:#6b7c8d;

    font-size:14px;

    margin-bottom:12px;

}

.stat-card .number{

    font-size:34px;

    color:#174466;

    font-weight:bold;

}

/* ==========================
Responsive
========================== */

@media(max-width:1000px){

    .sidebar{

        width:80px;

    }

    .brand-title,
    .brand-subtitle,
    .nav-section,
    .nav-menu a{

        font-size:0;

    }

    .nav-menu a{

        height:48px;

    }

    .stats{

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

    }

}

@media(max-width:700px){

    .stats{

        grid-template-columns:1fr;

    }

}