@media (max-width: 1199px) {
  :root {
    --container: min(100% - 36px, 1024px);
  }

  .hero__content,
  .about-grid,
  .benefits-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .configurator-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    width: 100%;
  }

  .services-grid,
  .benefit-cards,
  .process-grid,
  .gallery-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .video-showcase__track {
    grid-auto-columns: minmax(300px, 42%);
  }

  .hero {
    min-height: auto;
    padding-bottom: 90px;
    background-position: 60% center;
  }

  .hero__content {
    padding-top: calc(var(--nav-height) + 28px);
    padding-bottom: 96px;
    gap: 42px;
  }

  .hero__backdrop {
    justify-content: center;
  }

  .hero__backdrop-frame {
    width: min(760px, 84vw);
  }

  .hero__backdrop img {
    width: min(700px, 96%);
    transform: translate(4%, 5%);
  }

  .hero__headline-block {
    max-width: 720px;
  }

  .hero__signals {
    max-width: 720px;
  }

  .hero__panel {
    width: 100%;
    max-width: 460px;
  }

  .tech-kess3__layout {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
    gap: 18px;
    padding: 32px 32px 18px;
  }

  .about-copy,
  .benefits-copy,
  .contact-form-wrapper {
    max-width: none;
  }

  .about-grid,
  .benefits-grid {
    gap: 30px;
  }

  .about-visual,
  .benefits-visual {
    width: 100%;
  }

  .diagnostic-panel__footer {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .configurator-side {
    display: contents;
  }

  .configurator-form {
    grid-column: 1 / -1;
  }

  .configurator-showcase {
    grid-column: 1;
    min-height: 390px;
  }

  .configurator-result {
    grid-column: 2;
    min-height: 390px;
  }

  .configurator-showcase__copy {
    max-width: 100%;
  }

  .configurator-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-status {
    display: none;
  }

  .nav-panel {
    gap: 18px;
  }

  .nav-links {
    gap: 6px;
  }

  .nav-link {
    padding: 0.66rem 0.82rem;
    font-size: 0.84rem;
  }

  .nav-cta {
    min-height: 48px;
    padding: 0 1.1rem;
    font-size: 0.84rem;
  }
}

@media (max-width: 767px) {
  :root {
    --container: calc(100% - 28px);
    --nav-height: 82px;
  }

  .logo-image--header {
    height: 58px;
  }

  .logo-image--footer {
    height: 72px;
  }

  .section {
    padding: 86px 0;
  }

  .hero {
    background-position: 66% center;
  }

  .navbar {
    min-height: calc(var(--nav-height) - 12px);
    padding: 12px 16px;
    border-radius: 28px;
    gap: 16px;
  }

  .nav-toggle {
    display: inline-block;
    order: 3;
  }

  .nav-status {
    display: none;
  }

  .nav-panel {
    position: fixed;
    inset: calc(var(--nav-height) + 18px) 14px auto;
    display: grid;
    gap: 20px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 28px;
    background: rgba(10, 10, 10, 0.98);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  }

  .nav-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-links,
  .footer-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .nav-links {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    overflow: visible;
  }

  .nav-link {
    width: 100%;
    padding: 0.3rem 0;
    border-radius: 0;
  }

  .nav-link::before {
    width: 8px;
    height: 8px;
  }

  .nav-link::after {
    inset: auto 0 -6px;
    height: 1px;
    border: 0;
    border-radius: 0;
    background: linear-gradient(90deg, rgba(227, 30, 36, 0.9), rgba(227, 30, 36, 0));
    transform: scaleX(0);
    transform-origin: left;
    opacity: 1;
  }

  .nav-link:hover::after,
  .nav-link.active::after {
    transform: scaleX(1);
  }

  .nav-link:hover,
  .nav-link.active {
    transform: none;
    box-shadow: none;
  }

  .nav-cta {
    width: 100%;
  }

  .hero__copy h1 {
    max-width: 11ch;
    font-size: clamp(2.75rem, 13vw, 4.5rem);
    line-height: 0.94;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero__headline-kicker {
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    padding: 0.5rem 0.82rem;
  }

  .hero__actions {
    width: 100%;
    gap: 14px;
  }

  .hero .button {
    width: 100%;
  }

  .hero__signals {
    gap: 10px;
  }

  .hero__signals span {
    width: 100%;
    justify-content: flex-start;
  }

  .hero__backdrop-frame {
    width: min(92vw, 560px);
  }

  .hero__backdrop img {
    width: min(100%, 460px);
    transform: translate(2%, 8%);
    opacity: 0.58;
  }

  .hero__light--left {
    width: 220px;
    height: 220px;
    inset: 10% auto auto -16%;
  }

  .hero__light--right {
    width: 240px;
    height: 190px;
    inset: auto -12% 10% auto;
  }

  .hero__stats,
  .form-row,
  .services-grid,
  .configurator-shell,
  .configurator-grid,
  .configurator-result__stats,
  .comparison-grid,
  .benefit-cards,
  .process-grid,
  .gallery-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .service-card,
  .contact-form,
  .contact-card,
  .tech-kess3__panel,
  .configurator-form,
  .configurator-showcase,
  .configurator-result,
  .comparison-bars,
  .comparison-card,
  .benefit-card,
  .process-card,
  .gallery-card,
  .testimonial-card,
  .final-cta__box,
  .service-modal__dialog,
  .hero__panel,
  .progress-card,
  .diagnostic-panel {
    border-radius: 22px;
  }

  .configurator-form,
  .configurator-showcase,
  .configurator-result,
  .comparison-bars,
  .comparison-card,
  .benefit-card,
  .process-card,
  .testimonial-card,
  .final-cta__box {
    padding: 22px;
  }

  .configurator-actions {
    gap: 14px;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .about-flow,
  .benefits-pillars {
    gap: 10px;
  }

  .diagnostic-panel__top,
  .progress-card__top,
  .radial-meter,
  .progress-card__footer,
  .diagnostic-panel__footer,
  .screen-readouts {
    grid-template-columns: 1fr;
  }

  .diagnostic-panel__top,
  .progress-card__top {
    display: grid;
  }

  .radial-meter {
    justify-items: start;
    text-align: left;
  }

  .benefits-list li {
    padding: 0.9rem 0.95rem;
  }

  .video-showcase__shell {
    padding: 22px;
  }

  .video-showcase__topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .video-showcase__controls {
    width: 100%;
    justify-content: flex-end;
  }

  .video-showcase__track {
    grid-auto-columns: 100%;
    gap: 14px;
  }

  .video-card__media {
    aspect-ratio: 4 / 5;
    border-radius: 22px;
  }

  .video-card__sound {
    width: 42px;
    height: 42px;
  }

  .video-card__volume {
    left: 12px;
    right: 64px;
    bottom: 18px;
  }

  .tech-kess3__layout {
    padding: 24px 22px 12px;
  }

  .tech-kess3__content h2 {
    font-size: clamp(1.85rem, 9vw, 2.35rem);
  }

  .tech-kess3__subhead {
    font-size: clamp(1.45rem, 8vw, 1.9rem);
  }

  .tech-kess3__description {
    max-width: none;
  }

  .tech-kess3__highlights {
    gap: 10px;
    margin-top: 18px;
  }

  .tech-kess3__highlights span {
    min-height: 38px;
    padding: 0.62rem 0.88rem;
    font-size: 0.82rem;
  }

  .tech-kess3__visual {
    justify-content: center;
    margin-top: 8px;
  }

  .tech-kess3__image {
    width: min(100%, 440px);
    transform: none;
  }

  .configurator-showcase {
    grid-column: 1;
    min-height: 320px;
  }

  .configurator-result {
    grid-column: 1;
    min-height: auto;
  }

  .configurator-result[hidden] {
    display: none;
  }

  .configurator-showcase__brand {
    font-size: clamp(1.8rem, 10vw, 2.4rem);
  }

  .hero__panel-topline {
    flex-wrap: wrap;
  }

  .hero__panel {
    width: 100%;
    max-width: none;
  }

  .hero__panel-chip,
  .hero__panel-status {
    min-height: 38px;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
  }

  .stat-card strong {
    font-size: clamp(1.55rem, 8vw, 2.1rem);
  }

  .contact-method {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 14px;
    padding: 18px;
  }

  .contact-method__icon {
    width: 52px;
    height: 52px;
  }

  .contact-method__action {
    justify-self: start;
  }

  .contact-map {
    padding: 22px;
  }

  .contact-map__frame {
    min-height: 280px;
    border-radius: 22px;
  }

  .contact-map__frame iframe {
    min-height: 280px;
  }

  .configurator-showcase__stage {
    min-height: 180px;
    margin-top: 18px;
  }

  .configurator-showcase__image {
    width: min(100%, 320px);
  }

  .configurator-disclaimer {
    max-width: none;
  }

  .gallery-card figcaption {
    left: 18px;
    right: 18px;
    bottom: 16px;
  }

  .service-modal {
    padding: 16px;
  }

  .service-modal__dialog {
    padding: 24px 20px;
  }

  .service-modal__header {
    align-items: flex-start;
  }

  .service-modal__icon {
    width: 58px;
    height: 58px;
    flex-basis: 58px;
    border-radius: 18px;
    font-size: 1.55rem;
  }

  .service-modal__heading h3 {
    font-size: 1.9rem;
  }

  .footer-content {
    gap: 18px;
  }

  .footer-nav {
    align-items: center;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 48px;
    height: 48px;
  }
}