:root{--admin-sidebar-width:17rem;--admin-border:#d7dde5;--admin-bg:#f6f8fa;--admin-surface:#fff;--admin-text-muted:#5e6978}body{background:var(--admin-bg);color:#17202a}.admin-shell{min-height:100vh}.admin-sidebar{border-right:1px solid var(--admin-border);width:var(--admin-sidebar-width);background:#fff}.admin-main{min-width:0}.admin-header{border-bottom:1px solid var(--admin-border);background:#fff}.admin-content{max-width:1180px}.admin-nav-link{color:#1f2d3d;border-radius:.375rem}.admin-nav-link:hover,.admin-nav-link:focus,.admin-nav-link.active{color:#0f1720;background:#edf2f7}.admin-muted{color:var(--admin-text-muted)}.placeholder-panel{background:var(--admin-surface);border:1px solid var(--admin-border);border-radius:.5rem}@media (min-width:992px){.admin-sidebar{min-height:100vh;position:sticky;top:0}}