/* =============================================================================
   AFO — Responsive CSS
   ============================================================================= */

/* ── Tablet (≤1024px) ── */
@media (max-width: 1024px) {
  :root { --header-h: 64px; }

  .main-nav { display: none; }
  .mobile-menu-toggle { display: flex; }

  /* Mobile Nav */
  .main-nav.open {
    display: block; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: var(--color-green); z-index: 999; padding: 12px 0;
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open ul { flex-direction: column; gap: 2px; }
  .main-nav.open a { padding: 12px 24px; }

  /* Mobile menu toggle animation */
  .mobile-menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .mobile-menu-toggle.open span:nth-child(2) { opacity: 0; }
  .mobile-menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .header-inner { position: relative; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }

  /* Detail */
  .detail-layout { grid-template-columns: 1fr; }

  /* Checkout */
  .checkout-grid { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
}

/* ── Mobile (≤768px) ── */
@media (max-width: 768px) {
  .container { padding: 0 16px; }

  .hero { min-height: 70vh; }
  .hero-content h1 { font-size: 2rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; justify-content: center; }

  .section { padding: 56px 0; }
  .section-header { margin-bottom: 36px; }

  .card-grid, .card-grid-4 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

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

  .filter-bar form { flex-direction: column; }
  .filter-bar .filter-field,
  .filter-bar .filter-search { min-width: unset; width: 100%; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }

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

  .quote-form-wrap { padding: 28px 20px; }
  .quote-type-grid { grid-template-columns: 1fr 1fr; }

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

  .gallery-main img { height: 260px; }

  /* Admin */
  .admin-sidebar { display: none; width: 0; }
  .admin-layout { flex-direction: column; }
  .admin-content { padding: 16px; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .data-table { font-size: .8rem; }
  .data-table th, .data-table td { padding: 10px 8px; }

  /* Cart */
  .cart-table .product-cell { flex-direction: column; align-items: flex-start; }

  /* Detail info grid */
  .detail-info-grid { grid-template-columns: 1fr; }
}

/* ── Small Mobile (≤480px) ── */
@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.6rem; }
  .card-grid, .card-grid-4 { grid-template-columns: 1fr; }
  .tier-grid { grid-template-columns: 1fr; }
  .quote-type-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .btn { padding: 11px 20px; }
  .btn-xl { padding: 14px 28px; font-size: 1rem; }
  .fab-whatsapp { bottom: 16px; left: 16px; width: 50px; height: 50px; font-size: 1.3rem; }
}