@media only screen and (max-width: 900px) {
    html,
    body {
        overflow-x: hidden;
    }

    body.mobile-menu-is-open {
        overflow: hidden;
    }

    header {
        z-index: 10000;
        background-color: #fff;
    }

    header div.line {
        margin: 0 2%;
        background-color: #fff;
    }

    .back,
    .back-button,
    a.back,
    img[alt='BACK'],
    img[alt='Back'],
    img[title='BACK'],
    img[title='Back'] {
        display: none;
    }

    div.left-side,
    aside .right-side,
    main section.right-side {
        display: none;
    }

    main {
        margin: 6.25rem 1rem 1rem;
        padding-top: 0;
    }

    .breadcrumbs {
        display: block;
        max-width: none;
        margin: 0 auto 1.5rem;
        padding: 0 0.5rem;
        position: relative;
        z-index: 0;
        background-color: #fff;
    }

    .breadcrumbs-list {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.3rem;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .breadcrumbs-item {
        list-style: none;
    }

    .mobile-menu-controls {
        position: fixed;
        z-index: 10020;
        top: 0.75rem;
        right: 0.75rem;
        display: flex;
        align-items: center;
    }

    .mobile-menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 3rem;
        height: 3rem;
        padding: 0;
        border: 1px solid #ddd;
        border-radius: 9px;
        background: #fff;
        color: #111;
        font: inherit;
        font-size: 1.35rem;
        font-weight: 700;
        line-height: 1;
        cursor: pointer;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.10);
    }

    .mobile-menu-toggle:hover {
        border-color: #006600;
        color: #006600;
    }

    .mobile-menu-overlay {
        position: fixed;
        z-index: 10010;
        inset: 0;
        display: block;
        background: #fff;
        transform: translateX(100%);
        visibility: hidden;
        pointer-events: none;
        transition:
            transform 220ms ease,
            visibility 0s linear 220ms;
    }

    .mobile-menu-overlay.mobile-menu-open {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
        transition:
            transform 220ms ease,
            visibility 0s linear 0s;
    }

    .mobile-menu-panel {
        width: 100%;
        height: 100vh;
        height: 100dvh;
        padding: 4.25rem 1rem 1.25rem;
        overflow-y: auto;
        overflow-x: hidden;
        background: #fff;
        overscroll-behavior: contain;
        scrollbar-width: thin;
    }

    .mobile-menu-close {
        position: fixed;
        z-index: 10021;
        top: 0.75rem;
        left: 0.75rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 3rem;
        height: 3rem;
        border: 1px solid #ddd;
        border-radius: 9px;
        background: #fff;
        color: #444;
        font-size: 1.6rem;
        line-height: 1;
        cursor: pointer;
    }

    .mobile-menu-close:hover {
        border-color: #006600;
        color: #006600;
    }

    .mobile-menu-section {
        max-width: 42rem;
        margin: 0 auto 1.25rem;
        padding: 1rem;
        border: 1px solid #e5e5e5;
        border-radius: 8px;
        background: #f8f8f8;
    }

    .mobile-menu-site {
        background: #fff;
    }

    .mobile-menu-context {
        background: #f8f8f8;
    }

    .mobile-menu-heading {
        margin-bottom: 0.75rem;
        font-size: 0.78rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: #555;
    }

    .mobile-menu-overlay section.menu ul,
    .mobile-menu-overlay section.menu ul.menu,
    .mobile-menu-overlay section.menu ul.sub-menu {
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .mobile-menu-overlay section.menu ul.menu {
        display: flex;
        flex-direction: column;
        max-height: none;
        overflow: visible;
        border: none;
        border-radius: 0;
        background: transparent;
        scrollbar-width: auto;
    }

    .mobile-menu-overlay section.menu ul.menu li {
        margin: 0 0 0.45rem;
        padding: 0;
        border: none;
        border-radius: 0;
        color: #333;
        font-size: 0.88rem;
        line-height: 1.25;
        text-transform: none;
        list-style: none;
        overflow-wrap: anywhere;
    }

    .mobile-menu-overlay section.menu ul.menu li.url > a,
    .mobile-menu-overlay section.menu ul.menu li.sub-menu > .sub-menu-name {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 0.65rem 0.75rem;
        border: 1px solid #e5e5e5;
        border-radius: 7px;
        background: #fff;
        color: #333;
        text-decoration: none;
        cursor: pointer;
    }

    .mobile-menu-overlay section.menu ul.menu li.url > a:hover,
    .mobile-menu-overlay section.menu ul.menu li.sub-menu > .sub-menu-name:hover {
        border-color: #006600;
        color: #006600;
    }

    .mobile-menu-overlay section.menu ul.menu li.sub-menu > .sub-menu-name .arrow {
        margin-left: 0.5rem;
        color: #777;
    }

    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu {
        display: none;
        position: static;
        top: auto;
        left: auto;
        z-index: auto;
        width: auto;
        min-height: 0;
        flex-direction: column;
        flex-wrap: nowrap;
        align-items: stretch;
        margin: 0.45rem 0 0.2rem;
        padding: 0.5rem;
        border: 1px solid #eee;
        border-radius: 7px;
        background: #f8f8f8;
        color: #333;
    }

    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu.visible {
        display: flex;
    }

    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu li {
        margin: 0 0 0.35rem;
        padding: 0;
        border: none;
        border-radius: 0;
        background: transparent;
        font-size: 0.82rem;
        text-transform: none;
        list-style: none;
    }

    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu li:last-child {
        margin-bottom: 0;
    }

    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu li > a {
        display: block;
        padding: 0.55rem 0.6rem;
        border: 1px solid #e5e5e5;
        border-radius: 6px;
        background: #fff;
        color: #333;
        text-decoration: none;
    }

    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu li > a:hover {
        border-color: #006600;
        color: #006600;
        opacity: 1;
    }

    .mobile-menu-overlay section.menu ul.menu li.hub-index-item > a,
    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu li.hub-index-item > a,
    .mobile-menu-overlay section.menu ul.menu li ul.sub-menu li > a.hub-index-link {
        font-weight: 700;
        color: #006600;
    }

    .mobile-menu-context .hub-nav-block,
    .mobile-menu-context .subhub-nav-block {
        width: 100%;
        max-width: none;
        margin: 0 0 1rem;
        padding: 0.75rem;
        border: 1px solid #e5e5e5;
        border-radius: 7px;
        background: #f8f8f8;
        box-shadow: none;
    }

    .mobile-menu-context .subhub-nav-block {
        background: #fff;
    }

    .mobile-menu-context .hub-nav-block:last-child,
    .mobile-menu-context .subhub-nav-block:last-child {
        margin-bottom: 0;
    }

    .mobile-menu-context .hub-nav-heading,
    .mobile-menu-context .subhub-nav-heading,
    .mobile-menu-context .subhub-nav-block .hub-nav-heading {
        margin-bottom: 0.55rem;
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.035em;
        color: #555;
    }

    .mobile-menu-context .hub-nav-list,
    .mobile-menu-context .subhub-nav-list,
    .mobile-menu-context .subhub-nav-block .hub-nav-list {
        display: flex;
        flex-direction: column;
        flex-wrap: nowrap;
        gap: 0.35rem;
        margin: 0;
        padding: 0;
        list-style: none;
        overflow: visible;
    }

    .mobile-menu-context .hub-nav-item,
    .mobile-menu-context .subhub-nav-item,
    .mobile-menu-context .subhub-nav-block .hub-nav-item {
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .mobile-menu-context .hub-nav-link,
    .mobile-menu-context .subhub-nav-link,
    .mobile-menu-context .subhub-nav-block .hub-nav-link {
        display: block;
        padding: 0.58rem 0.65rem;
        border: 1px solid #ddd;
        border-radius: 6px;
        background: #fff;
        color: #333;
        font-size: 0.84rem;
        line-height: 1.25;
        text-decoration: none;
        white-space: normal;
        overflow-wrap: anywhere;
        box-shadow: none;
    }

    .mobile-menu-context .hub-nav-link:hover,
    .mobile-menu-context .subhub-nav-link:hover,
    .mobile-menu-context .subhub-nav-block .hub-nav-link:hover {
        border-color: #006600;
        color: #006600;
        background: #fff;
    }

    .mobile-menu-context .hub-nav-link.current {
        border-color: #006600;
        background: #006600;
        color: #fff;
    }

    .mobile-menu-context .subhub-nav-link.current,
    .mobile-menu-context .subhub-nav-block .hub-nav-link.current {
        border-color: #b7d7b7;
        background: #eef7ee;
        color: #006600;
        font-weight: 700;
    }

    nav.news .new p.tldr,
    nav.news .new:hover p.tldr {
        display: none;
    }

    nav.articles a.article {
        width: auto;
        margin-bottom: 1rem;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        padding: 1rem;
    }

    main article {
        padding: 1rem;
        font-size: 1.2rem;
    }

    main article > p {
        margin: 1.5rem 1rem 2.5rem;
        line-height: 1.65;
    }

    main article > ol,
    main article > ul {
        margin: 1.5rem 1rem 2.5rem;
        font-size: 1.1rem;
    }

    main article > div.image {
        display: block;
        margin: 1.5rem auto 2.5rem;
        text-align: center;
    }

    main article > img,
    main article img.vertical {
        display: block;
        float: none;
        max-width: 100%;
        margin: 1.5rem auto 2.5rem;
    }

    main article div.product {
        float: none;
    }

    article table {
        font-size: 0.75rem;
    }

    article th,
    article td {
        padding-left: 0.1rem;
        padding-right: 0.1rem;
    }

    section.test,
    section.questionary {
        padding: 0.5rem;
        font-size: 0.85rem;
    }

    article table.big {
        font-size: 0.5rem;
    }

    footer {
        max-width: none;
        margin: 1rem;
    }

    aside .feedback {
        position: relative;
        width: 100%;
        max-width: 85%;
        margin: 2rem;
        padding: 1rem;
        bottom: 0;
        left: 0;
    }
}

@media only screen and (max-width: 440px) {
    section {
        padding: 0.5rem;
    }

    header div.line span.logo {
        display: none;
    }

    main {
        margin: 6.25rem 0 0;
    }

    .breadcrumbs {
        margin: 0 auto 1.25rem;
        padding: 0 0.75rem;
        font-size: 0.82rem;
    }

    main article {
        padding: 0.75rem;
    }

    main article > h1,
    main h1 {
        font-size: 2.35rem;
        line-height: 1.15;
    }

    main article > h2,
    article > h2 {
        font-size: 1.5rem;
    }

    main article > h3,
    article > h3 {
        font-size: 1.2rem;
    }

    main article > h4,
    article > h4 {
        font-size: 1.1rem;
    }

    main article > p,
    article > p {
        font-size: 1.15rem;
        margin: 1.25rem 0.75rem 2rem;
    }

    nav.news h3 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }

    nav.articles .article {
        width: 100%;
    }

    nav.articles .article:nth-of-type(2n - 1) {
        margin-right: 0;
    }

    main p.tldr {
        margin: 0;
    }

    .mobile-menu-panel {
        padding: 4.25rem 0.75rem 1rem;
    }

    .mobile-menu-section {
        padding: 0.75rem;
    }

    .hub-nav-block,
    .subhub-nav-block {
        margin: 1rem 0.75rem;
        padding: 0.75rem;
    }

    .hub-nav-link,
    .subhub-nav-link {
        font-size: 0.85rem;
    }

    footer {
        max-width: 100%;
        margin: 1rem;
    }
}