.admin-shell { min-height: 100vh; display: grid; grid-template-columns: 236px 1fr; }
.admin-side { background: var(--bg-sidebar); border-right: 1px solid var(--border-secondary); padding: 16px 12px; display: grid; grid-template-rows: auto 1fr auto; gap: 20px; }
.admin-top { height: 56px; display: flex; align-items: center; justify-content: flex-end; gap: 12px; padding: 0 18px; border-bottom: 1px solid var(--border-secondary); background: rgba(11,14,17,.95); position: sticky; top: 0; z-index: 20; }
.admin-main { min-width: 0; }
.admin-content { padding: 18px; }
.admin-nav { display: grid; gap: 5px; }
.admin-nav a { display: flex; align-items: center; gap: 10px; padding: 11px 10px; border-radius: 4px; color: var(--text-secondary); }
.admin-nav a:hover, .admin-nav a.active { color: var(--text-primary); background: var(--bg-tertiary); }
.kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.bar-chart, .line-chart { height: 240px; display: flex; align-items: end; gap: 6px; padding: 16px; }
.bar { flex: 1; min-width: 5px; background: var(--brand-gradient); border-radius: 3px 3px 0 0; box-shadow: var(--glow-sm); }
.line-chart svg { width: 100%; height: 100%; }
.flagged td { background: rgba(255,159,0,.08); }
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 1180px) {
  .admin-shell { grid-template-columns: 76px 1fr; }
  .admin-side { padding: 12px 8px; gap: 14px; overflow: hidden; }
  .admin-side .brand-lockup span:last-child,
  .admin-nav a span,
  .admin-side #adminLogout { font-size: 0; }
  .admin-nav a { justify-content: center; padding: 11px 6px; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .admin-shell { display: block; min-height: 100vh; }
  .admin-side {
    position: sticky;
    top: 0;
    z-index: 45;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 8px 10px;
    border-right: 0;
    border-bottom: 1px solid var(--border-secondary);
  }
  .admin-side .brand-lockup { font-size: 14px; }
  .admin-side .brand-lockup span:last-child { font-size: 14px; }
  .admin-side #adminLogout { min-height: 30px; padding: 6px 9px; font-size: 11px; }
  .admin-nav {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .admin-nav::-webkit-scrollbar { display: none; }
  .admin-nav a {
    flex: 0 0 auto;
    min-height: 32px;
    padding: 7px 10px;
    justify-content: center;
    border: 1px solid var(--border-secondary);
    background: var(--bg-secondary);
  }
  .admin-nav a span { font-size: 11px; }
  .admin-nav a.active { border-color: var(--border-blue); box-shadow: var(--glow-sm); }
  .admin-top { height: auto; min-height: 46px; padding: 8px 10px; justify-content: space-between; position: sticky; top: 49px; }
  .admin-content { padding: 12px 10px 24px; overflow: hidden; }
  .kpi-grid, .settings-grid { grid-template-columns: 1fr; gap: 10px; }
  .bar-chart, .line-chart { height: 180px; padding: 12px 8px; gap: 4px; }
  .bar { min-width: 3px; }
}

@media (max-width: 420px) {
  .admin-side { grid-template-columns: 1fr auto; }
  .admin-nav { grid-column: 1 / -1; }
  .admin-top .btn { min-height: 30px; padding: 6px 8px; font-size: 11px; }
}