@media (max-width: 1080px) {
  .nav__links {
    gap: 0.75rem;
  }

  .nav__links a {
    font-size: 0.88rem;
  }

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

  .trust-item:nth-child(2) {
    border-right: 1px solid var(--color-border);
  }

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

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    right: var(--container-padding);
    left: var(--container-padding);
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-medium);
    background: #fff;
    padding: 1rem;
    box-shadow: var(--shadow-soft);
  }

  .promo-bar.is-visible + .site-header .nav {
    top: calc(var(--header-height) + 42px);
  }

  .nav.is-open {
    display: flex;
  }

  .nav__links {
    display: grid;
    gap: 0.2rem;
  }

  .nav__links a,
  .nav .btn {
    width: 100%;
    justify-content: flex-start;
    padding: 0.85rem;
  }

  .hero__grid,
  .problem,
  .pricing-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    max-width: 620px;
  }

  .hero__illustration {
    min-height: 420px;
    margin: 0 auto;
    transform: none;
    justify-items: center;
  }

  .hero__illustration::before {
    inset: 12% -6% 8% 8%;
  }

  .step-grid,
  .benefit-grid,
  .product-grid,
  .testimonial-grid,
  .logo-row {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  body {
    padding-bottom: 74px;
  }

  .section {
    padding: 3.25rem 0;
  }

  .brand img {
    width: 156px;
  }

  .promo-bar__inner {
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.45rem 0;
  }

  .hero {
    min-height: auto;
    padding-top: 2.5rem;
  }

  .hero__content {
    gap: 1rem;
  }

  .hero h1 span {
    display: inline;
  }

  .hero__stars {
    width: 138px;
    margin-bottom: 0.1rem;
  }

  .hero__actions,
  .promo-popup__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero__actions .btn,
  .promo-popup__actions .btn {
    width: 100%;
  }

  .hero-proof {
    position: static;
    width: 100%;
    margin-top: 0.75rem;
  }

  .hero__illustration {
    min-height: 310px;
  }

  .hero__illustration img {
    width: min(115%, 430px);
  }

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

  .trust-item,
  .trust-item:last-child,
  .trust-item:nth-child(2) {
    min-height: auto;
    border-right: 1px solid var(--color-border);
  }

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

  .price-card__top,
  .footer-bottom {
    flex-direction: column;
  }

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

  .mobile-sticky-cta {
    position: fixed;
    z-index: 90;
    right: 1rem;
    bottom: 1rem;
    left: 1rem;
    display: block;
    border-radius: var(--border-radius-medium);
    background: #fff;
    padding: 0.6rem;
    box-shadow: 0 12px 40px rgba(16, 24, 32, 0.22);
    opacity: 0;
    pointer-events: none;
    transform: translateY(16px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .mobile-sticky-cta.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .mobile-sticky-cta .btn {
    width: 100%;
  }
}