/* ═══════════════════════════════════════════════════
   RetailPOS — Responsive Breakpoints
   ═══════════════════════════════════════════════════ */

/* ── Tablet (≤1024px) ──────────────────────────── */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 200;
  }

  .sidebar.collapsed { transform: translateX(-100%); }
  .sidebar.mobile-open { transform: translateX(0); }

  .main-wrapper { margin-left: 0 !important; }

  .order-layout {
    grid-template-columns: 1fr;
  }

  .order-summary {
    position: static;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }

  .variation-row {
    grid-template-columns: 1fr 1fr;
  }

  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

/* ── Mobile overlay ────────────────────────────── */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 199;
  display: none;
}

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

/* ── Small tablets / Large phones (≤768px) ─────── */
@media (max-width: 768px) {
  .main-content {
    padding: 16px;
  }

  .page-header {
    padding: 16px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .page-title { font-size: 18px; }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box { min-width: unset; }

  .data-table { font-size: 12px; }
  .data-table th, .data-table td { padding: 8px 10px; }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .stat-card { padding: 14px; }
  .stat-value { font-size: 18px; }
  .stat-icon { width: 40px; height: 40px; font-size: 18px; }

  .grid-3, .grid-4 { grid-template-columns: 1fr; }

  .form-row {
    grid-template-columns: 1fr;
  }

  .payment-row {
    flex-direction: column;
  }

  .modal {
    width: 95%;
    max-height: 90vh;
  }

  .customer-meta {
    flex-wrap: wrap;
  }

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

  .variation-row {
    grid-template-columns: 1fr;
  }

  .header-date { display: none; }

  .top-header { padding: 0 16px; }
}

/* ── Small phones (≤480px) ─────────────────────── */
@media (max-width: 480px) {
  .main-content { padding: 12px; }

  .page-header { padding: 14px 16px; margin-bottom: 16px; }
  .page-title { font-size: 16px; }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stat-card { gap: 12px; }

  .btn { padding: 8px 14px; font-size: 12px; }

  .form-input, .form-select { padding: 8px 12px; font-size: 13px; }

  .summary-row.total { font-size: 16px; }

  .toast {
    left: 12px;
    right: 12px;
    top: auto;
    bottom: 16px;
    transform: translateY(120%);
  }
  .toast.show { transform: translateY(0); }
}