.shell { min-height: 100vh; display: grid; grid-template-columns: 280px 1fr; }
.sidebar { background: #0e1830; border-right: 1px solid var(--line); padding: 14px; overflow: auto; }
.main { padding: 16px; display: grid; grid-template-rows: auto 1fr; gap: 12px; }
.topbar { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: 12px; display:flex; justify-content:space-between; gap:8px; flex-wrap: wrap; }
.view { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: 12px; overflow:auto; }
.brand { border:1px solid var(--line); border-radius: var(--radius); padding: 10px; background: var(--surface); margin-bottom: 12px; }
.brand h1 { margin: 0; font-size: 15px; }
.brand p { margin: 5px 0 0; font-size: 12px; color: var(--muted); }
.nav-group { margin: 10px 0; }
.nav-label { margin: 10px 4px; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.nav-link { display:flex; justify-content:space-between; align-items:center; padding:9px 10px; border-radius:10px; border:1px solid transparent; color: var(--text); margin-bottom: 4px; font-size: 13px; }
.nav-link:hover, .nav-link.active { border-color: #3a5788; background: #17294b; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { border: 1px solid var(--line); border-radius: 999px; padding: 4px 9px; color: var(--muted); background:#0f1b34; font-size: 11px; }
.grid-1 { display:grid; grid-template-columns:1fr; gap: 10px; }
.grid-2 { display:grid; grid-template-columns: 2fr 1fr; gap: 10px; }
.grid-3 { display:grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.grid-4 { display:grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 10px; }
@media (max-width:1200px){ .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}.grid-3{grid-template-columns:1fr 1fr;}.grid-2{grid-template-columns:1fr;} }
@media (max-width:900px){ .shell{grid-template-columns:1fr;}.sidebar{border-right:0;border-bottom:1px solid var(--line);} .grid-3,.grid-4{grid-template-columns:1fr;} }

.nav-link.disabled { opacity:.45; cursor:not-allowed; pointer-events:none; border-color:#2a3550; background:#0f1728; }