@media (max-width: 360px) {
  html {
    font-size: 13px;
  }

  .container {
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .navbar-container {
    padding: 0 var(--space-sm);
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .products-grid,
  .bb-browse-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xs);
  }

  .product-card-body {
    padding: var(--space-xs);
  }

  .product-card-title {
    font-size: 0.7rem;
  }

  .product-card-price {
    font-size: 0.85rem;
  }

  .hero-title {
    font-size: 1.5rem !important;
  }

  .section-title {
    font-size: 1.25rem !important;
  }

  .bb-category-card {
    padding: var(--space-xs);
  }

  .bb-category-name {
    font-size: 0.7rem;
  }

  .auth-card {
    padding: var(--space-md);
  }

  .mobile-bottom-nav-item {
    font-size: 0.6rem;
    min-width: 40px;
    padding: var(--space-xs);
  }

  .mobile-bottom-nav-icon {
    font-size: var(--text-lg);
  }

  .btn {
    font-size: var(--text-sm);
    padding: var(--space-sm) var(--space-md);
  }

  .navbar-brand svg {
    width: 28px;
    height: 28px;
  }

  .navbar-cart-btn {
    width: 40px;
    height: 40px;
  }

  #navbar-auth-buttons .btn {
    font-size: var(--text-xs);
    padding: var(--space-xs) var(--space-sm);
    min-height: 40px;
  }

  .cart-item {
    grid-template-columns: 60px 1fr;
    gap: var(--space-xs);
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: var(--text-sm);
    padding: var(--space-sm);
  }

  .bb-browse-price {
    font-size: var(--text-sm);
  }

  .bb-browse-info {
    padding: 0.25rem;
  }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
    /* `overflow-x: hidden` makes html/body become the scroll container and
       silently breaks `position: sticky` on descendants (navbar, browse
       category bar, etc.) when the document scrolls the <html>. `clip`
       achieves the same horizontal clipping without creating a scroll
       container, so sticky positioning keeps working. */
    overflow-x: clip;
    -webkit-text-size-adjust: 100%;
  }

  body {
    overflow-x: clip;
    -webkit-overflow-scrolling: touch;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
    max-width: 100%;
  }

  .navbar-container {
    padding: 0 var(--space-md);
  }

  /* Keep the "JERTS CART" brand label visible on mobile — the previous
     `display:none` was overly cautious. Measured widths: at >=361vw the
     icon + label + the right-hand actions (cart+signup+search+menu ~213px)
     fit in the container content width comfortably. On the very narrowest
     phones (<=360vw) the label would push the Sign up button off-screen,
     so below that we collapse to icon-only brand (the same fallback also
     used at <=576vw previously). */
  .navbar-brand span {
    display: inline;
    font-size: var(--text-base);
    line-height: 1;
    white-space: nowrap;
  }

  .navbar-search {
    display: none;
  }

  .navbar-search-toggle {
    display: flex;
  }

  .navbar-mobile-toggle {
    display: flex;
    width: 48px;
    height: 48px;
  }

  .navbar-search-always {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--neutral-200);
    z-index: 99;
  }

  .navbar-search-always.active {
    display: flex;
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .navbar {
    height: 56px;
  }

  .navbar-menu {
    display: none;
  }

  .navbar-drawer {
    width: 85%;
    max-width: 300px;
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .navbar-drawer-link {
    padding: var(--space-md) var(--space-lg);
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .navbar-drawer-close {
    width: 48px;
    height: 48px;
  }

  .navbar-categories-container {
    padding: 0 var(--space-sm);
  }

  .navbar-category-link {
    padding: var(--space-sm) var(--space-xs);
    font-size: var(--text-xs);
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .hero-text {
    padding: var(--space-2xl) var(--space-md);
  }

  .hero-image {
    min-height: 40vh;
  }

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

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

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

  .browse-container {
    grid-template-columns: 1fr;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .bb-browse-layout {
    grid-template-columns: 1fr;
    padding: var(--space-md);
  }

  .bb-browse-filters {
    position: static;
    margin-bottom: var(--space-lg);
  }

  .bb-browse-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xs);
  }

  .bb-browse-info {
    padding: var(--space-sm);
  }

  .bb-browse-price {
    font-size: var(--text-base);
  }

  .bb-browse-toolbar-inner {
    flex-wrap: wrap;
    padding: 0 var(--space-md);
  }

  .bb-browse-search {
    order: 1;
    max-width: none;
    flex-basis: 100%;
  }

  .bb-browse-results {
    order: 2;
  }

  .bb-browse-sort {
    order: 3;
  }

  .bb-browse-title {
    font-size: var(--text-2xl);
  }

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

  .action-buttons,
  .delivery-payment {
    grid-template-columns: 1fr;
  }

  .cart-container {
    grid-template-columns: 1fr;
  }

  .cart-item {
    grid-template-columns: 80px 1fr;
  }

  .checkout-container {
    grid-template-columns: 1fr;
  }

  .checkout-section input,
  .checkout-section textarea,
  .checkout-section select {
    width: 100%;
  }

  .order-summary {
    position: static;
    order: -1;
  }

  .delivery-options,
  .payment-options {
    grid-template-columns: 1fr;
  }

  .checkout-steps {
    display: none;
  }

  .confirmation-actions {
    flex-direction: column;
  }

  .admin-container {
    grid-template-columns: 1fr;
  }

  .admin-mobile-toggle {
    display: block;
  }

  .admin-sidebar {
    position: fixed;
    left: -260px;
    top: 0;
    z-index: 1000;
    transition: left 0.2s ease;
  }

  .admin-sidebar.open {
    left: 0;
  }

  .admin-main {
    padding: var(--space-md);
    padding-top: var(--space-3xl);
    margin-left: 0;
  }

  .admin-stats {
    grid-template-columns: 1fr;
  }

  .admin-table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .admin-table {
    min-width: 600px;
    font-size: var(--text-xs);
  }

  .admin-table th,
  .admin-table td {
    padding: var(--space-xs) var(--space-sm);
  }

  .admin-filters {
    flex-direction: column;
  }

  .admin-search {
    min-width: 100%;
  }

  .admin-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .admin-actions {
    width: 100%;
  }

  .admin-actions .btn {
    flex: 1;
    min-height: 48px;
  }

  .admin-dashboard-grid {
    grid-template-columns: 1fr;
  }

  .admin-pagination {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }

  .auth-card {
    padding: var(--space-lg);
  }

  .btn {
    width: 100%;
    margin-bottom: var(--space-sm);
    min-height: 48px;
    padding: var(--space-md) var(--space-lg);
  }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-group .btn {
    border-radius: var(--radius-md);
    border-right: none;
  }

  .btn-group .btn:not(:last-child) {
    border-bottom: 1px solid var(--neutral-200);
    border-right: none;
  }

  .navigation-buttons {
    flex-direction: column;
    width: 100%;
  }

  .navigation-buttons .btn {
    margin-bottom: 0;
  }

  .product-card-actions {
    opacity: 1;
    transform: translateX(0);
  }

  .product-card {
    border-radius: var(--radius-md);
  }

  .product-card-image img {
    transform: none;
  }

  .product-card:hover {
    transform: none;
  }

  .product-card:hover .product-card-image img {
    transform: none;
  }

  .product-card-body {
    padding: var(--space-sm);
  }

  .product-card-title {
    font-size: var(--text-xs);
    -webkit-line-clamp: 2;
  }

  .product-card-price {
    font-size: var(--text-base);
  }

  .product-card-seller {
    padding-top: var(--space-xs);
  }

  .modern-hero-grid {
    grid-template-columns: 1fr !important;
  }

  .hero-visual-col {
    display: none !important;
  }

  .hero-text-col {
    grid-column: span 12 !important;
  }

  .universities-grid,
  .features-grid,
  .categories-grid,
  .discount-grid,
  .steps-grid {
    grid-template-columns: 1fr !important;
  }

  .modern-nav {
    padding: 1rem !important;
  }

  .modern-nav-inner {
    padding: 0.75rem 1rem !important;
  }

  .modern-nav-inner > div:last-child {
    display: none;
  }

  .hero-title {
    font-size: 2rem !important;
  }

  .hero-description {
    font-size: 1rem !important;
  }

  .section-title {
    font-size: 1.5rem !important;
  }

  .floating-card {
    display: none !important;
  }

  .category-tabs {
    flex-wrap: wrap !important;
  }

  .category-tab {
    font-size: 0.75rem !important;
    padding: 0.5rem 1rem !important;
  }

  img {
    max-width: 100%;
    height: auto;
  }

  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    width: 100%;
    min-height: 48px;
    padding: var(--space-md);
    font-size: var(--text-base);
  }

  .form-group label {
    font-size: var(--text-sm);
    padding-bottom: var(--space-xs);
  }

  .card {
    border-radius: var(--radius-md);
  }

  .card-body {
    padding: var(--space-md);
  }

  .stats-card {
    padding: var(--space-md);
  }

  .stats-card-value {
    font-size: var(--text-2xl);
  }

  .university-card {
    padding: var(--space-md);
  }

  .feature-card {
    padding: var(--space-lg);
  }

  .category-card {
    padding: var(--space-md);
  }

  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--neutral-200);
    z-index: var(--z-sticky);
    padding: var(--space-xs) 0;
    padding-bottom: calc(var(--space-xs) + env(safe-area-inset-bottom, 0px));
    justify-content: space-around;
    align-items: center;
  }

  .mobile-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-xs) var(--space-sm);
    color: var(--neutral-600);
    text-decoration: none;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    min-width: 48px;
    min-height: 48px;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast);
  }

  .mobile-bottom-nav-item.active {
    color: var(--color-primary);
  }

  .mobile-bottom-nav-icon {
    font-size: var(--text-xl);
  }

  /* The 60px body bottom padding was bookkeeping for `.mobile-bottom-nav`,
     a fixed bottom tab bar. That markup is never rendered anywhere in the
     app, so the padding just leaves ~60px of dead scroll space at the end
     of every page (visible at the bottom of the browse-page footer). The
     `.page-content` 80px rule has the same origin and is reduced to safe
     area inset only. */
  .page-content {
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .option-card {
    padding: var(--space-md);
    min-height: 48px;
  }

  .option-card input[type='radio'],
  .option-card input[type='checkbox'] {
    min-width: 24px;
    min-height: 24px;
  }

  .bb-page-btn {
    min-width: 48px;
    height: 48px;
  }

  .search-autocomplete {
    left: -10px;
    right: -10px;
    border-radius: 0;
  }

  .autocomplete-item {
    padding: var(--space-md);
    min-height: 48px;
  }

  .place-order-btn {
    min-height: 48px;
  }

  #navbar-auth-buttons .btn,
  #navbar-user-menu .btn {
    min-height: 48px;
  }

  .navbar-cart-btn {
    width: 48px;
    height: 48px;
  }

  .dashboard-container {
    grid-template-columns: 1fr;
  }

  .dashboard-sidebar {
    display: none;
  }

  .seller-dashboard {
    grid-template-columns: 1fr;
  }

  .seller-sidebar {
    display: none;
  }

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

  .bb-dashboard-sidebar {
    display: none;
  }
}

@media (min-width: 577px) and (max-width: 768px) {
  html {
    font-size: 15px;
    /* see the (max-width: 576px) breakpoint for why we use `clip` here. */
    overflow-x: clip;
  }

  body {
    overflow-x: clip;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.375rem;
  }

  .container {
    max-width: 720px;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .navbar-container {
    padding: 0 var(--space-lg);
  }

  .navbar-menu {
    display: none;
  }

  .navbar-search-always {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--neutral-200);
    z-index: 99;
  }

  .navbar-search-always.active {
    display: flex;
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .navbar-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }

  .navbar-drawer {
    width: 70%;
    max-width: 320px;
  }

  .navbar-drawer-link {
    padding: var(--space-md) var(--space-lg);
    min-height: 48px;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .bb-browse-layout {
    grid-template-columns: 1fr;
    padding: var(--space-lg);
  }

  .bb-browse-filters {
    position: static;
    margin-bottom: var(--space-lg);
  }

  .bb-browse-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .universities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .discount-grid {
    grid-template-columns: 1fr !important;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modern-hero-grid {
    grid-template-columns: 1fr !important;
  }

  .hero-visual {
    display: none !important;
  }

  .modern-nav-inner > div:nth-child(2) {
    display: none;
  }

  .browse-container {
    grid-template-columns: 1fr;
  }

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

  .cart-container,
  .checkout-container {
    grid-template-columns: 1fr;
  }

  .order-summary {
    position: static;
    order: -1;
  }

  .admin-container {
    grid-template-columns: 1fr;
  }

  .admin-mobile-toggle {
    display: block;
  }

  .admin-sidebar {
    position: fixed;
    left: -260px;
    top: 0;
    z-index: 1000;
    transition: left 0.2s ease;
  }

  .admin-sidebar.open {
    left: 0;
  }

  .admin-main {
    padding: var(--space-lg);
    padding-top: var(--space-3xl);
    margin-left: 0;
  }

  .admin-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .admin-dashboard-grid {
    grid-template-columns: 1fr;
  }

  .admin-table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .admin-table {
    min-width: 600px;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .product-card-actions {
    opacity: 1;
    transform: translateX(0);
  }

  .product-card:hover {
    transform: none;
  }

  .product-card:hover .product-card-image img {
    transform: none;
  }

  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--neutral-200);
    z-index: var(--z-sticky);
    padding: var(--space-xs) 0;
    padding-bottom: calc(var(--space-xs) + env(safe-area-inset-bottom, 0px));
    justify-content: space-around;
    align-items: center;
  }

  .mobile-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-xs) var(--space-sm);
    color: var(--neutral-600);
    text-decoration: none;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    min-width: 48px;
    min-height: 48px;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast);
  }

  .mobile-bottom-nav-item.active {
    color: var(--color-primary);
  }

  .mobile-bottom-nav-icon {
    font-size: var(--text-xl);
  }

  /* See the (max-width: 576px) block: the 60px body bottom padding here
     had the same dead-bookkeeping source as there — `.mobile-bottom-nav`
     markup is never rendered — so it's removed for parity. */
  .page-content {
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .option-card {
    min-height: 48px;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    min-height: 48px;
  }

  img {
    max-width: 100%;
    height: auto;
  }

  .dashboard-container {
    grid-template-columns: 1fr;
  }

  .dashboard-sidebar {
    display: none;
  }

  .seller-dashboard {
    grid-template-columns: 1fr;
  }

  .seller-sidebar {
    display: none;
  }

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

  .bb-dashboard-sidebar {
    display: none;
  }

  .bb-dashboard-header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .bb-dashboard-header-actions {
    width: 100%;
    flex-wrap: wrap;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  html {
    font-size: 15px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .container {
    max-width: 960px;
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }

  .navbar-menu {
    display: flex;
  }

  .navbar-search-always {
    display: flex;
    max-width: 400px;
  }

  .navbar-mobile-toggle {
    display: none;
  }

  .navbar-overlay,
  .navbar-drawer {
    display: none !important;
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .bb-browse-layout {
    grid-template-columns: 200px 1fr;
  }

  .bb-browse-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .universities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .discount-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .browse-container {
    grid-template-columns: var(--sidebar-width) 1fr;
  }

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

  .cart-container,
  .checkout-container {
    grid-template-columns: 1fr;
  }

  .admin-container {
    grid-template-columns: 220px 1fr;
  }

  .admin-sidebar {
    width: 220px;
  }

  .admin-mobile-toggle {
    display: none;
  }

  .admin-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .admin-dashboard-grid {
    grid-template-columns: 1fr;
  }

  .admin-main {
    padding: var(--space-xl);
    margin-left: 0;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .modern-hero-grid {
    grid-template-columns: 1fr !important;
  }

  .hero-visual {
    display: none !important;
  }

  .product-card:hover {
    transform: translateY(-2px);
  }

  .product-card:hover .product-card-image img {
    transform: scale(1.03);
  }

  .product-card-actions {
    opacity: 0;
    transform: translateX(10px);
  }

  .product-card:hover .product-card-actions {
    opacity: 1;
    transform: translateX(0);
  }

  .mobile-bottom-nav {
    display: none;
  }

  body {
    padding-bottom: 0;
  }

  .page-content {
    padding-bottom: 0;
  }

  .btn {
    width: auto;
  }

  .btn-group {
    flex-direction: row;
  }

  .btn-group .btn {
    border-radius: 0;
  }

  .btn-group .btn:not(:last-child) {
    border-right: 1px solid var(--neutral-200);
    border-bottom: none;
  }

  img {
    max-width: 100%;
    height: auto;
  }
}

@media (min-width: 1025px) {
  html {
    font-size: 16px;
  }

  .container {
    max-width: 1024px;
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }

  .navbar-menu {
    display: flex;
  }

  .navbar-search-always {
    display: flex;
    max-width: 500px;
  }

  .navbar-mobile-toggle {
    display: none;
  }

  .navbar-overlay,
  .navbar-drawer {
    display: none !important;
  }

  .products-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
  }

  .bb-browse-layout {
    grid-template-columns: 240px 1fr;
  }

  .bb-browse-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-md);
  }

  .universities-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .discount-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .browse-container {
    grid-template-columns: var(--sidebar-width) 1fr;
  }

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

  .cart-container {
    grid-template-columns: 1fr 380px;
  }

  .checkout-container {
    grid-template-columns: 1fr 400px;
  }

  .admin-container {
    grid-template-columns: 260px 1fr;
  }

  .admin-sidebar {
    width: 260px;
    position: sticky;
    top: 0;
    height: 100vh;
  }

  .admin-mobile-toggle {
    display: none;
  }

  .admin-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .admin-dashboard-grid {
    grid-template-columns: 1fr 1fr;
  }

  .admin-main {
    padding: var(--space-xl);
  }

  .product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 70, 190, 0.12);
  }

  .product-card:hover .product-card-image img {
    transform: scale(1.05);
  }

  .product-card-actions {
    opacity: 0;
    transform: translateX(10px);
  }

  .product-card:hover .product-card-actions {
    opacity: 1;
    transform: translateX(0);
  }

  .btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  .btn-secondary:hover:not(:disabled) {
    background: var(--neutral-100);
    border-color: var(--neutral-900);
  }

  .btn-outline:hover:not(:disabled) {
    background: var(--neutral-900);
    color: var(--color-white);
  }

  .category-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 70, 190, 0.1);
  }

  .university-card:hover {
    border-color: var(--color-primary);
    background: var(--neutral-50);
  }

  .feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 70, 190, 0.1);
  }

  .bb-browse-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(0, 70, 190, 0.1);
  }

  .bb-browse-add-cart:hover {
    background: var(--color-primary-hover);
  }

  .mobile-bottom-nav {
    display: none;
  }

  body {
    padding-bottom: 0;
  }

  .page-content {
    padding-bottom: 0;
  }

  .btn {
    width: auto;
  }

  .footer-content {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1400px;
  }

  .products-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
  }
}

@media (min-width: 1536px) {
  .products-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
  }
}

@media print {
  .navbar,
  .footer,
  .sidebar,
  .btn,
  button,
  .no-print,
  .mobile-bottom-nav {
    display: none !important;
  }

  body {
    background: white;
    color: black;
    padding-bottom: 0;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    page-break-after: avoid;
  }

  img {
    page-break-inside: avoid;
    max-width: 100%;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (hover: none) and (pointer: coarse) {
  button,
  .btn,
  a {
    min-height: 48px;
    min-width: 48px;
  }

  .product-card:hover {
    transform: none;
  }

  .product-card:hover .product-card-image img {
    transform: none;
  }

  .product-card-actions {
    opacity: 1;
    transform: translateX(0);
  }

  .btn-primary:hover:not(:disabled) {
    transform: none;
    box-shadow: none;
  }

  .navbar-menu.active {
    padding: var(--space-lg);
  }

  .navbar-link {
    padding: var(--space-sm) var(--space-md);
  }

  .navbar-drawer-link {
    min-height: 48px;
  }

  .bb-browse-card:hover {
    box-shadow: none;
    border-color: var(--neutral-200);
  }
}

/* ============================================================
   VERY NARROW PHONES (<=360vw) — must run after the (max-width: 576px)
   block so the cascade wins. Each rule here is a fallback for the
   narrowest phones where a normal layout breaks.
   ============================================================ */
@media (max-width: 360px) {
  /* "JERTS CART" + the 32px icon + the right-side actions
     (~213px nowrap) don't fit in a <=360vw navbar content width, so
     collapse the brand to icon-only. The home link in the mobile
     dropdown menu still shows the full brand text. */
  .navbar-brand span {
    display: none;
  }
}

/* ============================================================
   RESPONSIVENESS POLISH — applied across breakpoints
   ============================================================ */

/* Use momentum scrolling on iOS for any internal scroll containers.
   Without `-webkit-overflow-scrolling: touch` the user gets a janky
   scroll on the browse sidebar, navbar categories bar, and admin table. */
.browse-sidebar,
.browse-categories-scroll,
.navbar-categories-container,
.admin-table-container,
.search-autocomplete,
.browse-mobile-drawer,
.navbar-drawer-nav {
  -webkit-overflow-scrolling: touch;
}

/* Prevent the page from "jumping" sideways during scroll on Android
   when a transient horizontal overflow (e.g. a wide tooltip, the
   `no-scrollbar` autocompletes, or the navbar-categories horizontal
   scroll) momentarily extends the document width. `overflow-x: clip`
   clips without creating a scroll container, so it doesn't break
   `position: sticky` on the navbar/browse sidebar. */
@media (max-width: 1024px) {
  html,
  body {
    overflow-x: clip;
  }
}

/* Reduce oversized hero text on the landing page below 360px — clamp()
   already keeps it readable, but the explicit floor prevents one
   short word like "Made" from becoming bigger than the surrounding
   body copy on tiny screens. */
@media (max-width: 360px) {
  .hero-title {
    line-height: 1.15;
  }
}

/* Tablet (769–1024): tighten browse sidebar and product grid so the
   3-up grid doesn't leave a wide right gutter with the 220px sidebar. */
@media (min-width: 769px) and (max-width: 1024px) {
  .browse-page-inner {
    gap: var(--space-lg);
  }
  .browse-product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Long product / category names inside sticky bars shouldn't push
   horizontal scroll on small phones. */
@media (max-width: 576px) {
  .navbar-categories-container {
    scroll-padding-inline: var(--space-md);
    overscroll-behavior-x: contain;
  }
}
