@media (max-width: 1150px) {
    .main-navigation {
        gap: 15px;
    }

    .header-phone {
        display: none;
    }

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

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

@media (max-width: 960px) {
    .section {
        padding: 75px 0;
    }

    .header-inner {
        min-height: 72px;
    }

    .menu-button {
        display: block;
        margin-left: auto;
    }

    .main-navigation {
        position: fixed;
        top: 72px;
        right: 0;
        bottom: 0;
        display: none;
        width: min(360px, 90%);
        padding: 30px;
        align-items: stretch;
        flex-direction: column;
        background: #ffffff;
        box-shadow: -20px 20px 50px rgba(0, 0, 0, 0.15);
    }

    .main-navigation.active {
        display: flex;
    }

    .main-navigation a {
        padding: 12px 0;
        border-bottom: 1px solid #dde3df;
        font-size: 16px;
    }

    .header-contacts {
        display: none;
    }

    .hero,
    .hero-grid {
        min-height: auto;
    }

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

    .hero-content {
        padding-bottom: 30px;
    }

    .hero-visual {
        padding-bottom: 70px;
        justify-content: flex-start;
    }

    .hero-card {
        width: 100%;
    }

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

    .category-card {
        min-height: 300px;
    }

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

    .application-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .application-information {
        position: static;
    }

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

    .catalog-sidebar {
        position: static;
    }

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

    .product-information {
        position: static;
    }

    .project-card {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 680px) {
    .container {
        width: min(calc(100% - 28px), 1240px);
    }

    .section {
        padding: 58px 0;
    }

    h1 {
        font-size: 39px;
    }

    h2 {
        font-size: 31px;
    }

    .logo-text small {
        display: none;
    }

    .hero-content {
        padding-top: 65px;
    }

    .hero-content > p {
        font-size: 17px;
    }

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

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

    .hero-statistics {
        margin-top: 45px;
        flex-wrap: wrap;
        gap: 25px;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: 30px;
    }

    .products-grid,
    .products-grid-catalog,
    .advantages-grid,
    .projects-preview-grid {
        grid-template-columns: 1fr;
    }

    .product-image {
        height: 245px;
    }

    .application-form {
        padding: 24px;
    }

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

    .form-group-full {
        grid-column: auto;
    }

    .catalog-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .sorting-form {
        align-items: stretch;
        flex-direction: column;
    }

    .main-product-image {
        height: 380px;
    }

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

    .thumbnail-button {
        height: 70px;
    }

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

    .content-card {
        padding: 24px;
    }

    .project-images {
        min-height: 320px;
        grid-template-columns: 1fr;
    }

    .project-images > div {
        min-height: 260px;
    }

    .project-card-content {
        padding: 25px;
    }

    .project-details li {
        flex-direction: column;
        gap: 2px;
    }

    .project-details strong {
        text-align: left;
    }

    .cta-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .thanks-card {
        padding: 35px 22px;
    }

    .thanks-card h1 {
        font-size: 34px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .footer-bottom {
        flex-direction: column;
    }
}