/* =========================================================
   ≤ 1199px
   ========================================================= */
@media (max-width: 1199px) {
  .clean-product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .industry-application-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .clean-news-grid--four,
  .solutions-application-grid,
  .home-about-cards,
  .certificate-grid,
  .product-cards-grid,
  .product-cards-grid--archive,
  .solution-archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .news-grid,
  .clean-news-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
  }
  .timeline-item {
    grid-template-columns: 120px 1fr;
  }
  .solution-stagger-row { gap: 36px; }
  .solution-stagger-row:nth-child(odd) .solution-stagger-content { transform: translateY(24px); }
  .solution-stagger-row:nth-child(even) .solution-stagger-content { transform: translateY(-24px); }
  .solution-archive-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .benefits-numbered-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .benefits-stagger-row { gap: 36px; }
  .benefits-stagger-content--offset-down { transform: translateY(30px); }
  .benefits-stagger-content--offset-up { transform: translateY(-30px); }
  .carousel-arrow.prev { left: -16px; }
  .carousel-arrow.next { right: -16px; }
  .footer-grid--five { grid-template-columns: 1.2fr 1fr 1fr 1fr 1fr; }
}


/* =========================================================
   ≤ 991px — TABLET + MOBILE NAVIGATION
   ========================================================= */
@media (max-width: 991px) {

  /* --- Show hamburger --- */
  .menu-toggle {
    display: inline-flex;
  }

  /* --- Full-width fixed nav panel --- */
  .main-navigation {
    position: fixed !important;
    top: 85px;
    left: 0;
    right: 0;
    width: 100vw;
    max-height: calc(100vh - 85px);
    max-height: calc(100dvh - 85px);
    background: rgba(255, 255, 255, 0.99);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid #e8edf4;
    box-shadow: 0 24px 60px rgba(15, 35, 64, 0.15);
    padding: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-16px);
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .main-navigation.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .main-navigation::-webkit-scrollbar { width: 4px; }
  .main-navigation::-webkit-scrollbar-track { background: transparent; }
  .main-navigation::-webkit-scrollbar-thumb { background: #c8d4e0; border-radius: 4px; }

  .main-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 0 36px;
    margin: 0;
  }

  .main-menu > li {
    border-bottom: 1px solid #f0f4f8;
    padding: 0;
    margin: 0 28px;
  }
  .main-menu > li:last-child { border-bottom: 0; }

  .menu-link-wrap {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
  }

  .menu-link {
    width: 100%;
    min-height: 56px;
    font-size: 16px;
    font-weight: 600;
    color: #1a3a6a;
    padding: 0 4px;
  }

  /* Show submenu toggle on mobile */
  .site-header .submenu-toggle {
    display: flex !important;
    width: 42px;
    height: 42px;
    min-height: 42px;
    border: 1px solid #e2eaf3;
    background: #f8fafc;
    border-radius: 8px;
    flex-shrink: 0;
  }

  .menu-item-has-children.open > .menu-link-wrap .submenu-toggle {
    background: #0078d7;
    border-color: #0078d7;
  }
  .menu-item-has-children.open > .menu-link-wrap .submenu-toggle .submenu-toggle-icon {
    border-color: #ffffff;
  }

  /* Hide blue underline on mobile */
  .site-header .main-menu > li.menu-item-has-children > .menu-link-wrap > .menu-link::after {
    display: none !important;
  }

  .sub-menu {
    position: static !important;
    min-width: 100% !important;
    width: 100% !important;
    max-width: 100% !important;
    display: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    pointer-events: auto !important;
    box-shadow: none !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    padding: 4px 0 14px !important;
    margin: 0 !important;
    flex-direction: column !important;
  }

  .menu-item-has-children.open > .sub-menu {
    display: block !important;
  }

  .sub-menu li { margin: 0; }

  .sub-menu a {
    display: block !important;
    padding: 11px 16px 11px 22px !important;
    font-size: 14.5px !important;
    color: #3d5068 !important;
    font-weight: 500 !important;
    border-radius: 6px !important;
    white-space: normal !important;
    transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease !important;
    position: relative !important;
  }

  .sub-menu a::before {
    content: '' !important;
    display: block !important;
    position: absolute !important;
    left: 6px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 3px !important;
    height: 0 !important;
    background: #0078d7 !important;
    border-radius: 2px !important;
    transition: height 0.2s ease !important;
  }

  .sub-menu a:hover::before,
  .sub-menu a:focus::before {
    height: 55% !important;
  }

  .sub-menu a:hover,
  .sub-menu a:focus {
    background: #f0f6fd !important;
    color: #0078d7 !important;
    padding-left: 26px !important;
  }

  /* --- Layout sections single column --- */
  .solutions-layout, .products-layout, .filter-layout, .solutions-filter-layout,
  .contact-banner-clean, .solutions-contact-banner, .clean-two-column,
  .contact-faq-grid, .contact-page-grid, .feature-two-col, .news-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .contact-info-grid { grid-template-columns: 1fr; }
  .home-about-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-about-card { min-height: 320px; }
  .products-list-panel--scroll { min-height: auto; }
  .products-list-scroll { max-height: 360px; }
  .products-list-scroll--limited { max-height: 420px; }
  .products-visual-panel, .solutions-right, .contact-banner-clean-media, .solutions-contact-banner__media { min-height: 380px; }
  .products-visual-content, .contact-banner-clean-content, .solutions-contact-banner__content { position: static; max-width: none; background: #ffffff; }
  .products-visual-image { min-height: 380px; }
  .home-search-form { grid-template-columns: 1fr 140px; }
  .industry-application-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .news-grid, .clean-news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .clean-news-grid--four, .solutions-application-grid, .certificate-grid,
  .product-cards-grid, .product-cards-grid--archive, .solution-archive-grid, .clean-product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .timeline-item { grid-template-columns: 1fr; gap: 12px; }
  .news-list-item { grid-template-columns: 1fr; }
  .news-list-item__thumb { aspect-ratio: 16 / 9; }
  .anchor-nav { top: 84px; }
  .anchor-nav ul { gap: 18px; }
  .solutions-page-anchor-nav__inner { gap: 20px; }
  .solutions-products-searchbar__inner { grid-template-columns: 1fr 120px; }
  .table-toolbar, .solutions-results-toolbar { align-items: flex-start; }
  .solution-stagger-row { gap: 28px; padding: 36px 0; }
  .solution-stagger-row:nth-child(odd) .solution-stagger-content { transform: translateY(16px); }
  .solution-stagger-row:nth-child(even) .solution-stagger-content { transform: translateY(-16px); }
  .solution-stagger-media { min-height: 260px; }
  .solution-stagger-media .image-placeholder { min-height: 260px; }
  .solution-stagger-content h3 { font-size: 22px; }
  .solution-archive-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .benefits-numbered-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .products-filter-searchbar__inner { grid-template-columns: 1fr 120px; }
  .solutions-page-anchor-nav { top: 84px; }
  .product-category-tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; padding-bottom: 8px; margin-bottom: 24px; }
  .product-category-tab { white-space: nowrap; flex-shrink: 0; }
  .solutions-contact-actions { flex-direction: column; align-items: flex-start; }
  .benefits-stagger-row { gap: 28px; padding: 32px 0; }
  .benefits-stagger-content--offset-down { transform: translateY(20px); }
  .benefits-stagger-content--offset-up { transform: translateY(-20px); }
  .benefits-stagger-media { min-height: 260px; }
  .benefits-stagger-media .image-placeholder { min-height: 260px; }
  .benefits-stagger-content h3 { font-size: 22px; }
  .carousel-arrow.prev { left: -8px; }
  .carousel-arrow.next { right: -8px; }
  .simple-carousel { padding: 0 20px; }
  .product-features-card-grid, .product-advantages-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-customization-banner { grid-template-columns: 1fr; }
  .product-customization-media { min-height: 280px; }
  .product-storage-box { grid-template-columns: 1fr; gap: 16px; }
  .footer-grid--five { grid-template-columns: 1fr 1fr 1fr; }
}


/* =========================================================
   ≤ 992px — MEGA MENU MOBILE
   ========================================================= */
@media (max-width: 992px) {
  .menu-item-has-children::after { display: none; }

  .sub-menu--mega {
    display: block !important;
    min-width: 100% !important;
    max-width: 100% !important;
    padding: 4px 0 12px !important;
  }

  .sub-menu--mega > li:not(.mega-menu-header) {
    flex: none !important;
    max-width: 100% !important;
  }

  .sub-menu--mega > li:not(.mega-menu-header) > a {
    white-space: normal !important;
    overflow: visible !important;
    margin: 0 !important;
    border-radius: 0 !important;
    font-size: 14px !important;
    padding: 10px 16px !important;
  }

  .mega-menu-header { margin-bottom: 4px; padding-bottom: 4px; }
  .mega-menu-header a { padding: 10px 16px !important; }

  /* Products mega: stacked rows */
  ul.sub-menu.sub-menu--products-mega {
    display: block !important;
    padding: 4px 0 8px 4px !important;
  }

  ul.sub-menu.sub-menu--products-mega > li.mega-series-row {
    display: block !important;
    padding: 8px 12px !important;
    border-bottom: 1px solid #f0f4f8;
    width: 100% !important;
  }

  ul.sub-menu.sub-menu--products-mega strong.mega-series-name {
    display: block !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    color: #1a3a6a !important;
    margin-bottom: 6px;
    min-width: auto !important;
    max-width: none !important;
  }

  ul.sub-menu.sub-menu--products-mega span.mega-product-links {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 4px 6px !important;
  }

  ul.sub-menu.sub-menu--products-mega span.mega-product-links a {
    display: inline-block !important;
    font-size: 13px !important;
    color: #506174 !important;
    padding: 4px 10px !important;
    border-radius: 4px !important;
    background: #f4f8fc !important;
    width: auto !important;
  }

  ul.sub-menu.sub-menu--products-mega span.mega-product-links a:hover {
    background: #eaf1fb !important;
    color: #0078d7 !important;
  }

  ul.sub-menu.sub-menu--products-mega span.mega-product-links a::before { display: none !important; }
  ul.sub-menu.sub-menu--products-mega .mega-product-sep { display: none !important; }
}


/* =========================================================
   ≤ 767px — MOBILE
   ========================================================= */
@media (max-width: 767px) {
  .container, .container-home { width: min(100% - 24px, 1440px); }
  section { padding: 64px 0; }
  .header-inner { min-height: 76px; }
  .main-navigation { top: 77px !important; max-height: calc(100vh - 77px) !important; max-height: calc(100dvh - 77px) !important; }
  .main-menu > li { margin: 0 20px; }
  .hero-section { min-height: 520px; }
  .hero-placeholder { min-height: 520px; }
  .hero-content h1 { font-size: 36px; }
  .hero-content p { font-size: 17px; }
  .section-heading { display: block; }
  .section-heading .btn, .section-heading .text-link { margin-top: 16px; display: inline-flex; }
  .section-heading-count { margin-top: 8px; }
  .home-about-intro h2 { font-size: 32px; }
  .home-about-copy p { font-size: 16px; }
  .home-about-cards, .news-grid, .clean-news-grid, .clean-news-grid--four,
  .industry-application-grid, .form-grid, .footer-grid, .solutions-application-grid,
  .certificate-grid, .product-cards-grid, .product-cards-grid--archive,
  .solution-archive-grid, .clean-product-grid { grid-template-columns: 1fr; }
  .home-about-card { min-height: 280px; }
  .home-about-card__content { padding: 24px 20px; }
  .home-about-card__content h3 { font-size: 34px; }
  .products-list-panel__header, .products-list-panel__footer { padding-left: 20px; padding-right: 20px; }
  .product-accordion-trigger { padding: 14px 20px; }
  .product-name-trigger { padding: 14px 20px; }
  .product-name-trigger:hover, .product-name-trigger.active { padding-left: 28px; }
  .products-list-controls { padding-left: 16px; padding-right: 16px; }
  .products-visual-panel, .solutions-right, .contact-banner-clean-media, .solutions-contact-banner__media, .clean-media-column { min-height: 280px; }
  .products-visual-image { min-height: 280px; }
  .products-visual-content, .contact-banner-clean-content, .solutions-contact-banner__content, .solution-text-panel, .contact-form-clean-card, .faq-clean-card, .contact-map-card, .contact-form-card, .sidebar-card, .info-card, .solutions-filter-card, .filter-card { padding: 22px; }
  .products-visual-content h3, .solutions-contact-banner__content h2, .contact-banner-clean-content h2, .home-search-box__content h2 { font-size: 28px; }
  .home-search-box__inner { padding: 24px 22px; }
  .home-search-form { grid-template-columns: 1fr; gap: 12px; }
  .home-search-form input[type="search"] { border-radius: 4px; }
  .home-search-form button { width: 100%; border-radius: 4px; }
  .solutions-products-searchbar__inner { grid-template-columns: 1fr; gap: 12px; padding: 16px; }
  .solutions-products-searchbar__inner button { width: 100%; }
  .anchor-nav { top: 76px; }
  .anchor-nav ul, .solutions-page-anchor-nav__inner { gap: 14px; overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .solutions-page-anchor-nav { top: 76px; }
  .global-search-form { flex-direction: column; }
  .global-search-form button, .global-search-form input[type="search"] { width: 100%; }
  .table-toolbar, .solutions-results-toolbar { display: block; }
  .table-toolbar p, .solutions-results-toolbar p { margin-top: 8px; }
  .content-none-box, .error-404-box { padding: 28px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .timeline-year { font-size: 28px; }
  .news-list-item__body, .search-result-item { padding: 20px; }
  .solution-stagger-row { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
  .solution-stagger-row--reverse { direction: ltr; }
  .solution-stagger-row:nth-child(odd) .solution-stagger-content, .solution-stagger-row:nth-child(even) .solution-stagger-content { transform: translateY(0); }
  .solution-stagger-media { min-height: 220px; order: -1; }
  .solution-stagger-media .image-placeholder { min-height: 220px; }
  .solution-stagger-num { width: 46px; height: 46px; font-size: 18px; margin-bottom: 16px; }
  .solution-stagger-content h3 { font-size: 20px; }
  .solution-stagger-content p { font-size: 15px; }
  .solution-archive-grid, .benefits-numbered-grid { grid-template-columns: 1fr; }
  .anchor-link { white-space: nowrap; flex-shrink: 0; }
  .products-filter-searchbar__inner { grid-template-columns: 1fr; gap: 12px; padding: 16px; border-radius: 4px; }
  .products-filter-searchbar__inner input { border-radius: 4px; }
  .products-filter-searchbar__inner button { width: 100%; border-radius: 4px; }
  .product-category-tabs { gap: 8px; }
  .product-category-tab { min-height: 38px; padding: 0 16px; font-size: 13px; }
  .benefit-numbered-card { padding: 24px 20px; }
  .benefit-numbered-card__number { font-size: 40px; margin-bottom: 14px; }
  .solution-archive-card__body { padding: 20px; }
  .solutions-contact-actions { flex-direction: column; align-items: stretch; }
  .solutions-contact-actions .btn { text-align: center; justify-content: center; }
  .simple-contact-cta { padding: 36px 22px; }
  .simple-contact-cta h2 { font-size: 26px; }
  .benefits-stagger-row { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
  .benefits-stagger-row--reverse { direction: ltr; }
  .benefits-stagger-content--offset-down, .benefits-stagger-content--offset-up { transform: translateY(0); }
  .benefits-stagger-media { min-height: 220px; order: -1; }
  .benefits-stagger-media .image-placeholder { min-height: 220px; }
  .benefits-stagger-num { width: 46px; height: 46px; font-size: 18px; margin-bottom: 16px; }
  .benefits-stagger-content h3 { font-size: 20px; }
  .benefits-stagger-content p { font-size: 15px; }
  .benefits-stagger-extra { font-size: 13px !important; padding: 8px 14px; }
  .carousel-arrow { width: 38px; height: 38px; min-height: 38px; font-size: 18px; }
  .carousel-arrow.prev { left: -4px; }
  .carousel-arrow.next { right: -4px; }
  .simple-carousel { padding: 0 14px; }
  .solution-industry-slide--archive .solution-industry-slide__media { min-height: 200px; }
  .solution-industry-slide--archive .solution-industry-slide__body { padding: 20px 18px; }
  .product-features-card-grid, .product-advantages-grid { grid-template-columns: 1fr; }
  .product-customization-content { padding: 32px 24px; }
  .product-customization-content h2 { font-size: 24px; }
  .product-storage-box { padding: 24px; }
  .footer-grid--five { grid-template-columns: 1fr 1fr; }

  /* Homepage compact search responsive */
  .home-quick-search__wrapper {
    padding: 20px 0 0;
  }
  .home-quick-search__form input[type="search"]::placeholder {
    font-size: 12.5px;
  }
}


/* =========================================================
   ≤ 575px — SMALL MOBILE
   ========================================================= */
@media (max-width: 575px) {
  .container, .container-home { width: min(100% - 20px, 1440px); }
  section { padding: 56px 0; }
  .hero-section { min-height: 460px; }
  .hero-placeholder { min-height: 460px; }
  .hero-content h1 { font-size: 30px; }
  .hero-content p { font-size: 16px; }
  .btn, button, input[type="submit"] { min-height: 46px; padding: 0 20px; }
  .home-about-intro h2, .section-heading-tight h2, .inner-hero__content h1 { font-size: 28px; }
  .home-about-card { min-height: 250px; }
  .home-about-card__content h3 { font-size: 30px; }
  .solution-text-panel h3, .products-list-panel__header h3, .products-visual-content h3, .news-list-item__body h2 { font-size: 24px; }
  .products-list-scroll { max-height: 320px; }
  .products-list-scroll--limited { max-height: 360px; }
  .map-placeholder { min-height: 260px; }
  .solution-stagger-media { min-height: 180px; }
  .solution-stagger-media .image-placeholder { min-height: 180px; }
  .solutions-application-card__icon { width: 42px; height: 42px; font-size: 20px; margin-bottom: 12px; }
  .clean-product-overlay { display: none; }
  .benefits-stagger-media { min-height: 180px; }
  .benefits-stagger-media .image-placeholder { min-height: 180px; }
  .simple-carousel { padding: 0 10px; }
  .carousel-arrow.prev { left: -2px; }
  .carousel-arrow.next { right: -2px; }
  .main-menu > li { margin: 0 16px; }
  .menu-link { min-height: 50px; font-size: 15px; }
  .sub-menu a { padding: 10px 14px 10px 18px !important; font-size: 14px !important; }
  .footer-grid--five { grid-template-columns: 1fr; }

  /* Homepage compact search responsive */
  .home-quick-search__form {
    border-radius: 8px;
  }
  .home-quick-search__form button {
    border-radius: 6px;
    padding: 0 16px;
    font-size: 12px;
  }
  .home-quick-search__icon {
    width: 38px;
    font-size: 14px;
  }
}