@media (max-width: 1024px) {
  .page { width: min(1000px, 92vw); }
  .hero-slider { min-height: 360px; }
}

@media (max-width: 900px) {
  .site-header { overflow: visible; }
  .nav-toggle {
    display: inline-flex;
    position: relative;
    z-index: 301;
  }
  .main-nav { position: static; }
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.98));
    padding: 120px 24px 40px 24px;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-20px);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 300;
  }
  .site-header.open .nav-links {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  .header-inner { position: relative; }
  .nav-dropdown {
    width: 100%;
    max-width: 420px;
    align-self: center;
  }
  body.nav-open { overflow: hidden; }
  .nav-links a,
  .nav-dropdown-toggle,
  .nav-dropdown-label,
  .nav-dropdown-sub a {
    width: 100%;
    max-width: 420px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 52px;
    padding: 14px 18px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(15, 23, 42, 0.1);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
    font-weight: 600;
    color: #0f172a;
    transition: all 0.25s ease;
    box-sizing: border-box;
  }
  .nav-links a:hover {
    background: rgba(29, 78, 216, 0.08);
    border-color: rgba(29, 78, 216, 0.18);
    color: #1d4ed8;
    transform: translateY(-2px);
  }
  .nav-links a.active {
    background: linear-gradient(135deg, rgba(29, 78, 216, 0.12), rgba(96, 165, 250, 0.12));
    border-color: rgba(29, 78, 216, 0.25);
    color: #1d4ed8;
    box-shadow: 0 14px 32px rgba(29, 78, 216, 0.22);
  }
  .nav-dropdown-toggle { text-align: left; }
  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 10px 0 0;
    gap: 8px;
  }
  .nav-dropdown-sub {
    position: static;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 10px 0 0 16px;
    gap: 8px;
  }
  .nav-dropdown-menu.open,
  .nav-dropdown-group.open .nav-dropdown-sub {
    display: flex;
  }
  .site-header.open::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(8px);
    z-index: 250;
    opacity: 0;
    animation: fadeInBackdrop 0.35s ease forwards;
  }
  @keyframes fadeInBackdrop {
    to { opacity: 1; }
  }
}

@media (max-width: 768px) {
  .product-layout { grid-template-columns: 1fr; }
  .product-hero-image { min-height: 360px; }
  .toolbar { grid-template-columns: 1fr; }
  .cart-layout,
  .checkout-grid,
  .profile-grid { grid-template-columns: 1fr; }
  .admin-user-search,
  .admin-user-stats,
  .admin-user-meta { grid-template-columns: 1fr; }
  .admin-user-card { padding: 18px; }
  .admin-user-card-main { align-items: flex-start; }
  .admin-user-panel { padding: 20px; }
  .home-page { gap: 56px; }
  .home-page .hero-slider { min-height: 420px; }
  .section-header { align-items: flex-start; }
  .home-page .slide { padding: 28px 24px; align-items: flex-end; }
  .home-page .hero-actions { width: 100%; }
  .home-page .hero-actions .btn { flex: 1 1 100%; min-height: 46px; }
  .home-page .category-showcase { grid-template-columns: repeat(2, 1fr); }
  .home-page .features-grid,
  .home-page .reviews-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .brand { gap: 10px; font-size: 1rem; }
  .brand-mark { width: 40px; height: 40px; }
  .products-grid { grid-template-columns: 1fr; }
  .card-media img { height: 200px; }
  .footer-bottom { flex-direction: column; }
  .cart-row { grid-template-columns: 1fr; align-items: start; }
  .admin-row,
  .admin-order-row { grid-template-columns: 1fr; }
  .home-page .hero-slider { min-height: 390px; }
}

@media (max-width: 480px) {
  .nav-links {
    width: min(92vw, 340px);
    padding: 82px 16px calc(132px + env(safe-area-inset-bottom));
  }
  .nav-links a,
  .nav-dropdown-toggle,
  .nav-dropdown-label,
  .nav-dropdown-sub a {
    min-height: 48px;
    padding: 12px 14px;
    font-size: 0.94rem;
  }
  .home-page { gap: 44px; }
  .home-page .hero-slider { min-height: 380px; }
  .home-page .slide { padding: 22px 18px; }
}