@media (max-width: 980px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 77px;
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    align-content: start;
    align-items: stretch;
    padding: 28px 24px;
    background: var(--paper);
  }

  .site-nav.is-open {
    display: grid;
    gap: 4px;
  }

  .site-nav a {
    padding: 17px 4px !important;
    border-bottom: 1px solid var(--line) !important;
  }

  .site-nav .nav-contact {
    justify-content: center;
    margin-top: 18px;
    border: 1px solid var(--ink) !important;
  }

  .hero-grid,
  .page-hero-grid,
  .principles,
  .requisites-grid,
  .job-layout {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 360px;
  }

  .section-head {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .section-lead {
    grid-column: 2;
  }

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

  .product-card {
    min-height: auto;
  }

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

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

  .footer-row {
    grid-template-columns: 1fr 1fr;
  }

  .footer-row > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 32px), var(--max));
  }

  .header-row {
    min-height: 68px;
  }

  .brand img {
    width: 178px;
  }

  .site-nav {
    top: 69px;
  }

  .hero,
  .page-hero {
    padding: 52px 0 60px;
  }

  .hero-grid,
  .page-hero-grid {
    gap: 42px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(43px, 14.5vw, 64px);
    letter-spacing: -0.055em;
  }

  .hero-copy {
    margin-top: 26px;
    font-size: 18px;
  }

  .hero-actions,
  .cta-row {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-panel {
    min-height: 330px;
    padding: 22px;
  }

  .hero-panel::before {
    inset: 64px 22px 22px;
  }

  .panel-products {
    margin-top: 64px;
  }

  .panel-product {
    grid-template-columns: 24px 1fr;
  }

  .panel-product span {
    display: none;
  }

  .panel-bottom {
    right: 22px;
    bottom: 20px;
    left: 22px;
  }

  .section {
    padding: 76px 0;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 38px;
  }

  .section-lead {
    grid-column: 1;
  }

  .section-head h2,
  .cta-band h2 {
    font-size: 39px;
  }

  .product-card {
    padding: 22px;
  }

  .interface-shell {
    padding: 10px;
    border-radius: 12px;
  }

  .interface-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .interface-tabs {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(3, 1fr);
  }

  .interface-tab {
    padding-inline: 5px;
    font-size: 13px;
  }

  .interface-meta,
  .interface-figure figcaption span:last-child {
    display: none;
  }

  .capability-grid,
  .fact-board,
  .steps {
    grid-template-columns: 1fr;
  }

  .capability {
    min-height: auto;
  }

  .capability code {
    margin-bottom: 26px;
  }

  .fact,
  .fact:nth-child(2n),
  .fact:nth-last-child(-n + 2) {
    min-height: 126px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .fact:last-child {
    border-bottom: 0;
  }

  .legal-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .footer-row {
    grid-template-columns: 1fr;
  }

  .footer-row > :first-child {
    grid-column: auto;
  }

  .vacancy-card {
    grid-template-columns: 1fr auto;
    gap: 18px;
  }

  .vacancy-meta {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}