@media (max-width: 1280px) {
  .products-grid--catalog {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .filters__controls {
    grid-template-columns: minmax(260px, 2fr) repeat(2, minmax(150px, 1fr)) minmax(130px, 150px);
  }

  .filter-actions {
    grid-column: 1 / -1;
  }

  .quote-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quote-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
  }

  .quote-product-card__body {
    padding: 16px;
  }

  .quote-product-card__image {
    padding: 18px;
  }
}

@media (max-width: 1024px) {
  .support-grid,
  .contact-layout,
  .product-layout,
  .product-extra,
  .support-banner__wrap,
  .brand-grid--logos,
  .catalog-summary,
  .product-meta--card {
    grid-template-columns: 1fr;
  }

  .products-grid--catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .filter-field--search,
  .filter-actions {
    grid-column: 1 / -1;
  }

  .filters__top {
    align-items: flex-start;
  }

  .catalog-results {
    white-space: normal;
  }

  .products-grid--catalog.is-list .product-card--catalog {
    grid-template-columns: 190px 1fr;
  }

  .products-grid--catalog.is-list .product-card__image {
    min-height: 190px;
  }

  .main-nav {
    gap: 16px;
  }

  .hero--media {
    min-height: 500px;
  }

  .hero-overlay {
    background:
      linear-gradient(
        180deg,
        rgba(10, 12, 18, 0.72) 0%,
        rgba(10, 12, 18, 0.5) 46%,
        rgba(10, 12, 18, 0.28) 100%
      );
  }

  .hero-content {
    padding: 68px 0;
  }

  .hero-content .eyebrow,
  .hero-content h1,
  .hero-content p,
  .hero-content .hero-actions {
    max-width: 420px;
  }

  .hero-content h1 {
    font-size: clamp(2.6rem, 6vw, 4rem);
  }

  .product-main-image {
    padding: 22px;
  }

  .header-search {
    flex: 1 1 300px;
    max-width: 360px;
  }

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

  .quote-summary {
    position: static;
  }
}

@media (min-width: 681px) {
  .quote-mobile-sheet {
    display: none !important;
  }
}

@media (max-width: 680px) {
  .site-header {
    background: rgba(246, 247, 251, 0.96);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(231, 234, 243, 0.9);
  }

  .container {
    width: min(100% - 24px, var(--container));
  }

  .header-wrap {
    position: relative;
    min-height: 60px;
    padding: 0;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }

  .header-bar {
    position: relative;
    display: grid;
    grid-template-columns: 56px 1fr 56px;
    align-items: center;
    width: 100%;
    min-height: 56px;
    background: rgba(255, 255, 255, 0.94);
    z-index: 55;
  }

  .header-toggle {
    display: flex;
    width: 56px;
    height: 56px;
    border: 0;
    background: transparent;
    color: var(--text);
  }

  .site-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 0 14px;
    background: transparent;
    border: 0;
    transition:
      opacity var(--transition),
      transform var(--transition),
      filter var(--transition);
  }

  .site-logo__img {
    height: 24px;
  }

  .is-mobile-search-open .site-logo {
    opacity: 0;
    transform: scale(0.94);
    filter: blur(1px);
    pointer-events: none;
  }

  .header-toggle--menu span {
    left: 17px;
    right: 17px;
    transition:
      top var(--transition),
      transform var(--transition),
      opacity var(--transition),
      background var(--transition);
  }

  .header-toggle--menu span:nth-child(1) {
    top: 20px;
  }

  .header-toggle--menu span:nth-child(2) {
    top: 27px;
  }

  .header-toggle--menu span:nth-child(3) {
    top: 34px;
  }

  .header-toggle__search-circle {
    width: 19px;
    height: 19px;
    top: 15px;
    left: 16px;
    transition:
      border-color var(--transition),
      transform var(--transition),
      opacity var(--transition);
  }

  .header-toggle__search-handle {
    width: 11px;
    top: 31px;
    left: 30px;
    transition:
      background var(--transition),
      transform var(--transition),
      opacity var(--transition);
  }

  .header-toggle__search-close {
    top: 27px;
    left: 21px;
    transition:
      opacity var(--transition),
      transform var(--transition),
      background var(--transition);
  }

  .main-nav {
    display: none;
  }

  .header-search {
    position: absolute;
    top: 4px;
    left: 52px;
    right: 52px;
    z-index: 65;
    display: flex;
    align-items: center;
    gap: 0;
    margin: 0;
    padding: 0 4px;
    max-width: none;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px) scale(0.99);
    transform-origin: right center;
    transition:
      opacity var(--transition),
      transform var(--transition);
  }

  .is-mobile-search-open .header-search {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0) scale(1);
  }

  .header-search__box {
    flex: 1 1 auto;
  }

  .header-search__input {
    width: 100%;
    min-height: 48px;
    padding: 0 16px;
    border-radius: 999px;
    border-color: rgba(217, 31, 50, 0.18);
    background: rgba(255, 255, 255, 0.99);
    box-shadow:
      inset 0 1px 2px rgba(16, 18, 24, 0.02),
      0 6px 14px rgba(16, 18, 24, 0.05);
  }

  .header-search__input:focus {
    border-color: rgba(217, 31, 50, 0.34);
    box-shadow:
      0 0 0 4px rgba(217, 31, 50, 0.08),
      0 8px 16px rgba(16, 18, 24, 0.06);
  }

  .header-search__button {
    display: none;
  }

  .header-search__results {
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    max-height: 60vh;
    border-radius: 18px;
    box-shadow:
      0 16px 34px rgba(16, 18, 24, 0.12),
      0 4px 10px rgba(16, 18, 24, 0.05);
  }

  .is-mobile-menu-open .main-nav {
    display: flex;
  }

  .main-nav--mobile-panel {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    z-index: 60;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    background: rgba(246, 247, 251, 0.985);
    border-top: 1px solid rgba(231, 234, 243, 0.85);
    border-bottom: 1px solid rgba(231, 234, 243, 0.95);
    box-shadow: 0 16px 28px rgba(16, 18, 24, 0.1);
    opacity: 0;
    transform: translateY(-8px);
    transition:
      opacity var(--transition),
      transform var(--transition);
  }

  .is-mobile-menu-open .main-nav--mobile-panel {
    display: flex;
    opacity: 1;
    transform: translateY(0);
  }

  .main-nav--mobile-panel a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
    padding: 0 12px;
    border-bottom: 1px solid rgba(231, 234, 243, 0.9);
    color: var(--text);
    font-size: 1.04rem;
    font-weight: 700;
    text-align: center;
    transition:
      color var(--transition),
      background var(--transition);
  }

  .main-nav--mobile-panel a:last-child {
    border-bottom: 0;
  }

  .main-nav--mobile-panel a:hover,
  .main-nav--mobile-panel a[aria-current="page"] {
    color: var(--brand);
    background: rgba(255, 241, 243, 0.65);
  }

  .is-mobile-search-open .header-toggle--search,
  .is-mobile-menu-open .header-toggle--menu {
    background: rgba(255, 241, 243, 0.88);
    color: var(--brand);
    z-index: 70;
  }

  .is-mobile-search-open .header-toggle--menu {
    opacity: 0.22;
    transform: scale(0.94);
  }

  .is-mobile-menu-open .header-toggle--menu span:nth-child(1) {
    top: 27px;
    transform: rotate(45deg);
  }

  .is-mobile-menu-open .header-toggle--menu span:nth-child(2) {
    opacity: 0;
  }

  .is-mobile-menu-open .header-toggle--menu span:nth-child(3) {
    top: 27px;
    transform: rotate(-45deg);
  }

  .is-mobile-search-open .header-toggle__search-circle {
    opacity: 0;
    transform: scale(0.6);
  }

  .is-mobile-search-open .header-toggle__search-handle {
    opacity: 1;
    width: 14px;
    top: 27px;
    left: 21px;
    transform: rotate(45deg);
  }

  .is-mobile-search-open .header-toggle__search-close {
    opacity: 1;
    transform: rotate(-45deg) scaleX(1);
  }

  .header-overlay {
    position: fixed;
    inset: 56px 0 0 0;
    z-index: 56;
    display: none;
    background: rgba(16, 18, 24, 0.16);
    backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity var(--transition);
  }

  .is-mobile-search-open .header-overlay,
  .is-mobile-menu-open .header-overlay {
    display: block;
    opacity: 1;
  }

  .section {
    padding: 56px 0;
  }

  .products-grid,
  .products-grid--catalog,
  .specs-grid,
  .form-grid,
  .product-meta--card {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filters--catalog {
    padding: 20px;
    gap: 16px;
  }

  .filters__top,
  .filters__controls {
    display: grid;
    grid-template-columns: 1fr;
  }

  .filter-field--search,
  .filter-actions {
    grid-column: auto;
  }

  .catalog-results {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .catalog-toolbar {
    margin-bottom: 18px;
  }

  .catalog-toolbar__text {
    font-size: 0.92rem;
  }

  .catalog-summary {
    grid-template-columns: 1fr;
  }

  .btn,
  .products-grid--catalog.is-list .product-card .btn {
    width: 100%;
  }

  .product-actions,
  .support-banner__actions,
  .hero-actions,
  .support-card__actions {
    flex-direction: column;
  }

  .products-grid--catalog.is-list .product-card--catalog {
    grid-template-columns: 1fr;
  }

  .products-grid--catalog.is-list .product-card__image {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(231, 234, 243, 0.7);
  }

  .product-card__body,
  .products-grid--catalog.is-list .product-card__body {
    padding: 18px;
  }

  .product-card h3,
  .products-grid--catalog.is-list .product-card h3 {
    font-size: 1.08rem;
  }

  .brand-link-card,
  .support-card {
    min-height: 190px;
  }

  .brand-grid--logos {
    grid-template-columns: 1fr;
  }

  .brand-logo--duplimax {
    max-width: 170px;
  }

  .brand-logo--platinum {
    max-width: 210px;
  }

  .hero--media {
    min-height: 520px;
  }

  .hero-media__image {
    object-position: center;
  }

  .hero-content {
    padding: 56px 0 44px;
  }

  .hero-content .eyebrow,
  .hero-content h1,
  .hero-content p,
  .hero-content .hero-actions {
    max-width: 100%;
  }

  .hero-content h1 {
    font-size: clamp(2.3rem, 10vw, 3.4rem);
    text-wrap: pretty;
  }

  .hero-content p {
    max-width: 24ch;
    font-size: 0.98rem;
  }

  .product-gallery,
  .product-info,
  .specs-card,
  .stores-card,
  .form-card,
  .brand-card,
  .support-banner__wrap {
    padding: 20px;
  }

  .product-main-image {
    padding: 18px;
  }

  .product-thumbs {
    gap: 10px;
  }

  .product-thumb {
    width: 68px;
    height: 68px;
  }

  .product-info h1 {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }

  .product-desc {
    font-size: 0.98rem;
  }

  .quote-header {
    gap: 16px;
    margin-bottom: 18px;
  }

  .quote-header__intro p {
    max-width: 26ch;
    font-size: 0.98rem;
    line-height: 1.45;
  }

  .quote-stepper {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .quote-stepper__step {
    min-width: 0;
    min-height: 58px;
    padding: 10px 8px;
    border-radius: 16px;
    gap: 7px;
    box-shadow: none;
    background: rgba(255, 255, 255, 0.88);
    align-items: center;
    justify-content: center;
  }

  .quote-stepper__step.is-current {
    background: linear-gradient(135deg, #ffffff 0%, #fff6f7 100%);
    border-color: rgba(217, 31, 50, 0.16);
    box-shadow: 0 6px 16px rgba(16, 18, 24, 0.04);
  }

  .quote-stepper__label {
    font-size: 0.8rem;
    line-height: 1.08;
    letter-spacing: -0.01em;
    text-align: left;
  }

  .quote-stepper__number {
    width: 28px;
    height: 28px;
    font-size: 0.8rem;
  }

  .quote-catalog {
    padding: 18px;
    border-radius: 24px;
    box-shadow: 0 8px 20px rgba(16, 18, 24, 0.04);
  }

  .quote-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 14px;
    min-width: 0;
  }

  .quote-filter {
    max-width: 100%;
  }

  .quote-filter__input {
    min-height: 48px;
    padding: 0 42px 0 40px;
    font-size: 0.98rem;
  }

  .quote-toolbar__meta {
    display: flex;
    justify-content: flex-end;
  }

  .quote-toolbar__count {
    font-size: 0.9rem;
  }

  .quote-categories {
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 2px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .quote-categories::-webkit-scrollbar {
    display: none;
  }

  .quote-categories > * {
    flex: 0 0 auto;
  }

  .quote-chip {
    min-height: 38px;
    padding: 0 14px;
    font-size: 0.88rem;
    white-space: nowrap;
  }

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

  .quote-product-card {
    border-radius: 22px;
  }

  .quote-product-card__media {
    aspect-ratio: 1 / 0.82;
  }

  .quote-product-card__image {
    padding: 18px;
  }

  .quote-product-card__body {
    gap: 10px;
    padding: 15px;
  }

  .quote-product-card__title {
    font-size: 1rem;
  }

  .quote-product-card__meta {
    font-size: 0.86rem;
  }

  .quote-product-card__popover p {
    font-size: 0.88rem;
  }

  .quote-summary {
    display: none;
  }

  .quote-review,
  .quote-send {
    padding: 20px;
  }

  .quote-review-item {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px;
  }

  .quote-review-item__media {
    width: 80px;
    height: 80px;
  }

  .quote-form__grid {
    grid-template-columns: 1fr;
  }

  .quote-review__footer,
  .quote-form__actions,
  .quote-success__actions {
    flex-direction: column;
  }

  .quote-success {
    padding: 32px 20px;
  }

  .quote-mobile-summary-trigger {
    display: inline-flex;
    left: 12px;
    right: 12px;
    bottom: 10px;
    min-height: 50px;
    max-width: calc(100vw - 24px);
    border-color: rgba(217, 31, 50, 0.14);
    box-shadow:
      0 8px 18px rgba(16, 18, 24, 0.1),
      0 2px 6px rgba(16, 18, 24, 0.04);
  }

  .quote-mobile-sheet__panel {
    gap: 12px;
    padding: 12px 14px 14px;
  }

  .quote-mobile-sheet__head {
    gap: 10px;
  }

  .quote-mobile-sheet__head h2 {
    margin-bottom: 4px;
    font-size: 1.16rem;
  }

  .quote-mobile-sheet__count {
    font-size: 0.88rem;
  }

  .quote-mobile-sheet__status {
    display: none;
  }

  .quote-mobile-sheet__list {
    gap: 10px;
    padding-right: 0;
    padding-bottom: 2px;
  }

  .quote-summary-item {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 10px;
    padding: 10px;
    border-radius: 16px;
  }

  .quote-summary-item__media {
    width: 58px;
    height: 58px;
    border-radius: 12px;
  }

  .quote-summary-item__title {
    font-size: 0.92rem;
    line-height: 1.2;
  }

  .quote-summary-item__meta {
    font-size: 0.82rem;
  }

  .quote-summary-item__hint {
    font-size: 0.8rem;
  }

  .quote-qty {
    grid-template-columns: 38px minmax(64px, auto) 38px;
    gap: 6px;
  }

  .quote-qty__btn {
    width: 38px;
    min-width: 38px;
    height: 38px;
  }

  .quote-qty__input {
    min-width: 64px;
    height: 38px;
  }

  .quote-mobile-sheet__footer {
    grid-template-columns: 1fr;
    gap: 10px;
    padding-top: 10px;
  }

  .quote-mobile-sheet__footer .btn {
    width: 100%;
  }

  .quote-mobile-sheet__clear {
    order: 1;
  }

  .quote-mobile-sheet__continue {
    order: 2;
  }

  .quote-toast-stack {
    right: 12px;
    left: 12px;
    bottom: 78px;
    width: auto;
  }

  .quote-toast {
    font-size: 0.92rem;
  }
}