/* Topbar + Sidebar Layout */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: linear-gradient(180deg, #0d1320, #0b0f16);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 600; letter-spacing: .2px; }

.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  padding: 16px;
}

.sidebar {
  position: sticky;
  top: 72px;
  align-self: start;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 8px;
}
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--muted);
}
.sidebar a.active, .sidebar a:hover {
  background: rgba(99, 91, 255, .12);
  color: var(--text);
}

.content {
  min-height: calc(100vh - 56px - 32px);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.grid {
  display: grid;
  gap: 16px;
}
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.card-title { font-weight: 600; margin-bottom: 8px; }
.card-subtitle { color: var(--muted); font-size: 12px; margin-bottom: 12px; }