@media (max-width: 1120px) {
    .header-cta {
        display: none;
    }

    .primary-nav > a,
    .nav-dropdown > button {
        padding-inline: 9px;
    }

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

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

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

    .region-link-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

@media (max-width: 900px) {
    .product-catalog .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .topbar-inner > span {
        display: none;
    }

    .topbar-inner {
        justify-content: flex-end;
    }

    .header-inner {
        min-height: 74px;
    }

    .nav-toggle {
        position: relative;
        z-index: 130;
        display: grid;
        width: 46px;
        height: 46px;
        margin-left: auto;
        padding: 11px;
        place-content: center;
        gap: 5px;
        border: 1px solid var(--line);
        border-radius: 12px;
        background: var(--white);
        cursor: pointer;
    }

    .nav-toggle span {
        width: 22px;
        height: 2px;
        background: var(--green-950);
    }

    .nav-toggle b {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
    }

    .primary-nav {
        position: fixed;
        top: var(--mobile-nav-top, 109px);
        right: 0;
        bottom: 0;
        left: 0;
        display: block;
        width: 100%;
        height: calc(100vh - var(--mobile-nav-top, 109px));
        height: calc(100dvh - var(--mobile-nav-top, 109px));
        padding: 24px 20px 80px;
        overflow-x: hidden;
        overflow-y: auto;
        z-index: 200;
        border-top: 1px solid var(--line);
        background: var(--white);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        transform: translateY(-12px);
        transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
    }

    .nav-open .primary-nav {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }

    body {
        padding-bottom: calc(84px + env(safe-area-inset-bottom));
    }

    .floating-whatsapp {
        display: none;
    }

    .sticky-contact {
        display: flex;
    }

    .nav-open .sticky-contact {
        visibility: hidden;
        pointer-events: none;
    }

    .primary-nav > a,
    .nav-dropdown > button {
        display: flex;
        width: 100%;
        min-height: 50px;
        padding: 12px 4px;
        align-items: center;
        justify-content: space-between;
        border-bottom: 1px solid var(--line);
        text-align: left;
    }

    .nav-dropdown {
        width: 100%;
        min-width: 0;
    }

    .dropdown-panel {
        position: static;
        top: auto;
        left: auto;
        display: none;
        width: 100%;
        max-width: 100%;
        max-height: none;
        margin: 0;
        padding: 12px 0 18px 14px;
        overflow: visible;
        grid-template-columns: repeat(2, 1fr);
        border: 0;
        border-radius: 0;
        box-shadow: none;
        opacity: 1;
        pointer-events: auto;
        transform: none;
        transition: none;
    }

    .nav-dropdown:hover .dropdown-panel,
    .nav-dropdown:focus-within .dropdown-panel,
    .nav-dropdown.is-open .dropdown-panel {
        display: grid;
        transform: none;
    }

    .dropdown-panel a {
        min-width: 0;
        white-space: normal;
        overflow-wrap: anywhere;
    }

    .hero-slider,
    .hero-slide.is-active {
        min-height: 640px;
    }

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

    .trust-grid div:nth-child(2) {
        border-right: 0;
    }

    .trust-grid div:nth-child(-n+2) {
        border-bottom: 1px solid rgba(255, 255, 255, .16);
    }

    .section-heading-split,
    .process-grid,
    .calculator-copy,
    .service-hero-grid,
    .product-detail-grid,
    .about-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .process-intro {
        position: static;
    }

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

    .service-banner {
        border-radius: 20px;
    }

    .calculator-copy .eyebrow {
        grid-column: auto;
    }

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

    .content-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .article-toc {
        position: static;
        grid-template-columns: repeat(4, 1fr);
    }

    .article-toc strong {
        grid-column: 1 / -1;
    }

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

    .product-detail-visual {
        width: min(100%, 390px);
        margin-inline: auto;
    }

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

@media (max-width: 640px) {
    body {
        font-size: 15px;
    }

    .container {
        width: min(calc(100% - 28px), var(--container));
    }

    .section {
        padding-top: 65px;
        padding-bottom: 65px;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }

    .brand-copy small {
        display: none;
    }

    .brand-mark {
        width: 42px;
        height: 42px;
    }

    .brand-logo {
        width: 165px;
    }

    .dropdown-panel {
        grid-template-columns: 1fr;
    }

    .hero-slider,
    .hero-slide.is-active {
        min-height: 680px;
    }

    .hero-content {
        padding-top: 75px;
        padding-bottom: 125px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.05rem;
    }

    .hero-actions .button {
        width: 100%;
    }

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

    .trust-grid div {
        min-height: 88px;
        border-right: 0;
        border-bottom: 1px solid rgba(255, 255, 255, .16);
    }

    .service-grid,
    .product-grid,
    .calculator-form,
    .contact-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

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

    .service-card {
        min-height: 250px;
    }

    .product-card {
        padding: 0;
    }

    .product-capacity {
        width: 64px;
        height: 64px;
    }

    .calculator {
        padding: 26px 20px;
        border-radius: 20px;
    }

    .calculator-result {
        grid-template-columns: 1fr;
    }

    .calculator-result strong {
        margin: 5px 0;
    }

    .message-cta {
        padding: 28px 22px;
        grid-template-columns: 1fr;
        gap: 28px;
        border-radius: 20px;
    }

    .message-actions {
        justify-content: stretch;
    }

    .message-actions .button {
        width: 100%;
    }

    .service-hero {
        padding: 22px 0 62px;
    }

    .service-hero-grid {
        margin-top: 30px;
    }

    .service-hero h1 {
        font-size: 2.35rem;
    }

    .article-toc {
        display: none;
    }

    .article-section {
        margin-bottom: 42px;
    }

    .formula-card {
        padding: 20px;
        overflow: auto;
    }

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

    .inner-hero {
        padding: 65px 0;
    }

    .product-detail-hero {
        padding: 65px 0;
    }

    .product-detail-visual {
        padding: 18px;
    }

    .contact-brief ul {
        grid-template-columns: 1fr;
    }

    .contact-brief {
        grid-column: auto;
        padding: 25px;
    }

    .footer-bottom {
        padding: 20px 0;
        flex-wrap: wrap;
        gap: 10px 20px;
    }

    .footer-bottom span:last-child {
        width: 100%;
        margin-left: 0;
    }

}