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var(--transition-slow);box-shadow:var(--shadow-lg)}.sidebar-open{left:0}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:10}.menu-toggle{display:inline-flex}.grid-4,.audit-filter-grid,.filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:768px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;left:-300px;top:0;width:var(--sidebar-width);transition:left var(--transition-slow);padding-bottom:1rem;box-shadow:var(--shadow-lg)}.sidebar-open{left:0}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:10;animation:backdrop-in .2s ease-out}.menu-toggle{display:inline-flex}.topbar{align-items:flex-start;flex-direction:column;padding:.75rem 1rem;gap:.5rem}.topbar-actions{width:100%}.page{padding:1rem}.page-header{flex-direction:column;align-items:flex-start;gap:.75rem}.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.table-search,.table-select,.topbar-search{min-width:100%}.table-count{margin-left:0}.table-toolbar{flex-direction:column;align-items:stretch}.customer-header{flex-direction:column;align-items:flex-start}.modal-panel,.modal-panel-lg{width:100%;max-height:95vh;border-radius:var(--radius-lg)}.tabs{width:100%}.tab-btn{flex:1;text-align:center;justify-content:center}.audit-filter-grid,.filter-grid{grid-template-columns:1fr}.quick-actions{flex-direction:column}.quick-actions .btn{width:100%;justify-content:center}.stats-inline{flex-direction:column}.form-inline{flex-direction:column;align-items:stretch}.login-card{padding:1.75rem}.stat-value{font-size:1.25rem}}@keyframes fade-in-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{animation:fade-in-up .3s ease-out}.empty-state{text-align:center;padding:2rem 1rem;color:var(--muted)}.empty-state-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius-full);background:var(--surface-soft);color:var(--muted);margin-bottom:.75rem}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.loading-pulse{animation:pulse 2s infinite}