.shell{display:flex;min-height:100vh}
.sidebar{
  width:240px;
  background:#fff;
  border-right:1px solid var(--border);
  padding:14px 10px;
}
.brand{padding:6px 10px 14px 10px}
.nav{display:flex;flex-direction:column;gap:4px;padding:0 6px}
.nav a{
  display:flex;align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:10px;
  color:var(--text);
}
.nav a:hover{background:#F2F6FF;color:var(--primary)}
.nav a.active{background:#EEF4FF;color:var(--primary);font-weight:600}
.main{flex:1;min-width:0}
.topbar{
  height:56px;
  background:#fff;
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
}
.content{padding:18px 18px 24px 18px}