/* ==========================================================================
   Naman Dixit Electronics — Responsive Breakpoints & Mobile UX
   ========================================================================== */

@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .delivery-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-top .footer-col:last-child { grid-column: 1 / -1; }
  .newsletter { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .container { padding: 0 20px; }
  .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px 20px;
    gap: 8px;
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-15px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s ease;
    box-shadow: var(--shadow-lg);
  }
  body.nav-open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    border-bottom: none;
    width: 100%;
    font-size: 15px;
  }
  .nav-links a.active {
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary);
  }
  .nav-contact-pill { display: none; }
  .nav-toggle { display: inline-flex; }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-copy { max-width: 100%; margin: 0 auto; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; max-width: 480px; margin: 0 auto; }
  .hero-art { max-width: 400px; margin: 0 auto; }

  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .product-gallery { position: static; }
  .checkout-layout { grid-template-columns: 1fr; }
  
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .section--tight { padding: 40px 0; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  
  .product-body { padding: 14px; }
  .product-name { font-size: 14px; }
  .product-desc { display: none; }
  .price { font-size: 16px; }
  .price-strike { font-size: 12px; }
  .product-actions { grid-template-columns: 1fr; gap: 6px; }
  .product-actions .btn { padding: 8px; font-size: 12px; }

  .delivery-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }

  .cart-drawer { max-width: 100%; }
  .newsletter-form { flex-direction: column; }
  
  .hero-stats { grid-template-columns: 1fr; gap: 12px; }
  .floating-contact-btn {
    bottom: 16px;
    left: 16px;
    padding: 10px 16px;
    font-size: 12px;
  }
}

@media (max-width: 400px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 30px; }
}