body {
  background: linear-gradient(180deg, #f6f8fb 0%, #edf2f7 100%);
}

.app-shell {
  min-height: calc(100vh - 56px);
}

.sidebar-nav {
  background: #ffffff;
  border-right: 1px solid #e8edf3;
  min-height: calc(100vh - 56px);
  position: sticky;
  top: 56px;
}

.sidebar-nav .list-group-item {
  border: 0;
  border-radius: 0;
  padding: 0.85rem 1rem;
  font-weight: 600;
  color: #334155;
}

.sidebar-nav .list-group-item.active {
  background: #0d6efd;
  color: #fff;
}

.metric-card {
  border: 0;
  box-shadow: 0 4px 12px rgba(17, 24, 39, 0.06);
}

.alert-card {
  background: #fff2f2;
}

.cashier-card {
  border: 1px solid #d9e4ff;
}

.qr-reader-box {
  width: 100%;
  min-height: 260px;
  border: 1px dashed #7aa2ff;
  border-radius: 8px;
  overflow: hidden;
  background: #f7faff;
}

.cashier-suggestions {
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid #dbe4ff;
  border-radius: 0.375rem;
}

.cashier-suggestions .list-group-item {
  border-left: 0;
  border-right: 0;
}

.offcanvas .list-group-item {
  padding: 0.9rem 1rem;
  font-weight: 500;
}

@media (max-width: 767.98px) {
  .navbar .badge {
    font-size: 0.7rem;
  }
}