/* ===== RESPONSIVE: TABLET ===== */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }

  .wallet-balance-strip {
    grid-template-columns: 1fr;
  }

  .split-card-header {
    flex-direction: column;
  }

  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

/* ===== RESPONSIVE: MOBILE ===== */
@media (max-width: 768px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  /* Hide sidebar off-screen by default */
  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    bottom: 0;
    width: 280px;
    z-index: 999;
    transition: left 300ms ease;
  }

  .sidebar.open {
    left: 0;
  }

  .sidebar-close {
    display: block;
  }

  .hamburger {
    display: block;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 14px;
  }

  .stat-value {
    font-size: 18px;
  }

  .stat-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
  }

  /* Content */
  .content-area {
    padding: 16px;
  }

  .topbar {
    padding: 0 16px;
  }

  /* Forms */
  .form-row {
    flex-direction: column;
    gap: 0;
  }

  /* Product grid */
  .product-grid {
    grid-template-columns: 1fr;
  }

  /* Modal */
  .modal {
    width: 95%;
    padding: 16px;
  }

  /* Tables scroll */
  .data-table th,
  .data-table td {
    padding: 8px 12px;
    font-size: 13px;
  }
}

/* ===== OVERLAY WHEN SIDEBAR OPEN ===== */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 998;
  display: none;
}

.sidebar-overlay.active {
  display: block;
}