@media (min-width: 64.0625rem) {
  .hero {
    height: calc(100svh - 5rem);
    min-height: 0;
    padding-block: 3rem;
  }

  .hero__copy { gap: 1.25rem; }

  .hero__copy h1 {
    max-width: none;
    font-size: clamp(3.7rem, 5vw, 4.5rem);
  }

  .hero-visual__composite {
    height: 38rem;
    min-height: 0;
  }

  .hero-visual__art {
    height: 38rem;
    object-fit: cover;
    object-position: center 30%;
  }

  .hero-visual__composite .phone {
    right: -2rem;
    bottom: -0.5rem;
    width: min(50%, 17rem);
  }

  .hero-visual > figcaption { margin-top: 1.25rem; }

  #system { padding-block: 5rem; }

  #system .section-header { margin-bottom: 2rem; }
  #system .section-header h2 { max-width: none; }
  #system .system-layout { align-items: start; }
  #system .system-layout .phone { width: min(100%, 14.5rem); }
}

@media (max-width: 64rem) {
  .hero {
    min-height: auto;
    gap: 2rem;
  }

  .hero-visual__composite {
    min-height: 32rem;
  }

  .hero-visual__composite .phone {
    right: -1rem;
  }

  .system-layout,
  .adaptation,
  .life-layout {
    gap: 3rem;
  }

  .system-chain {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .system-chain::before {
    top: 1.35rem;
    right: auto;
    bottom: 1.35rem;
    left: 1.31rem;
    width: 0.125rem;
    height: auto;
  }

  .chain-node {
    grid-template-columns: 2.75rem minmax(0, 1fr);
    gap: 0.15rem 1rem;
    padding-right: 0;
  }

  .chain-node::before {
    grid-row: 1 / span 2;
  }
}

@media (max-width: 48rem) {
  body {
    font-size: 1.0625rem;
  }

  .shell {
    width: min(100% - 2rem, var(--content));
  }

  .site-header__inner {
    min-height: 4.5rem;
    gap: 0.75rem;
  }

  .site-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding-block: 4.5rem;
  }

  .hero__copy {
    gap: 1.35rem;
  }

  .hero-visual {
    width: min(100%, 36rem);
    margin-inline: auto;
  }

  .hero-visual__composite {
    min-height: 39rem;
  }

  .hero-visual__art {
    width: 100%;
    margin: 0;
  }

  .hero-visual__composite .phone {
    right: -0.5rem;
    bottom: -1.5rem;
    width: min(54%, 18rem);
  }

  .hero-visual__composite::after {
    right: 19%;
  }

  .section {
    padding-block: clamp(4.5rem, 14vw, 5.5rem);
  }

  .section-header {
    margin-bottom: 3rem;
  }

  .system-layout,
  .adaptation,
  .life-layout,
  .product-proof,
  .offer,
  .faq {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .system-layout .phone,
  .product-proof__visual .phone,
  .life-layout .phone {
    width: min(100%, 19rem);
  }

  .product-proof--reverse .product-proof__visual {
    order: 0;
  }

  .product-proof + .product-proof {
    margin-top: 5rem;
  }

  .phone-stack .phone:not(:first-child) {
    display: none;
  }

  .adaptation__visual {
    max-height: 38rem;
    overflow: hidden;
    border-radius: var(--radius-large);
  }

  .adaptation__visual img {
    min-height: 34rem;
    object-position: center top;
  }

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

  .site-footer__inner {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 30rem) {
  .hero__copy h1 {
    max-width: none;
    font-size: clamp(2.375rem, 10vw, 2.75rem);
  }

  h2 {
    font-size: clamp(2.25rem, 12vw, 3rem);
  }

  .brand__name {
    display: none;
  }

  .header-actions {
    gap: 0.35rem;
  }

  .header-actions .button {
    padding-inline: 0.75rem;
    font-size: 0.78rem;
  }

  .locale-link {
    min-width: 2.75rem;
    text-align: center;
  }

  .hero {
    padding-top: 2rem;
  }

  .hero__copy { gap: 0.875rem; }

  .hero__copy .lede {
    font-size: 1rem;
    line-height: 1.5;
  }

  .hero__actions,
  .hero__actions .button,
  .app-store-button {
    width: 100%;
  }

  .hero-visual__composite {
    min-height: 38rem;
  }

  .hero-visual__composite .phone {
    right: 0.5rem;
    bottom: -0.75rem;
    width: min(82%, 17rem);
  }

  .adaptation-decision {
    grid-template-columns: 1fr;
  }

  .adaptation-decision__arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  .slot,
  .domain-item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .offer-panel {
    padding: 1.25rem;
  }

  .faq summary {
    padding-right: 2.5rem;
  }
}