@media (max-width: 1080px) {
  .nav-shell {
    gap: 16px;
  }

  .main-nav {
    gap: 15px;
  }

  .hero-grid,
  .feature-grid,
  .page-hero-grid {
    gap: 40px;
  }

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

  .timeline article {
    min-height: auto;
  }

  .timeline article:not(:last-child)::after {
    top: auto;
    right: 43px;
    left: auto;
    bottom: -16px;
    width: 2px;
    height: 28px;
    background: linear-gradient(180deg, rgba(98, 219, 255, .7), transparent);
  }
}

@media (max-width: 900px) {
  .site-header {
    top: 10px;
  }

  .nav-shell {
    min-height: 66px;
    border-radius: 20px;
  }

  .menu-toggle {
    display: block;
    margin-inline-start: auto;
  }

  .main-nav {
    position: fixed;
    top: 86px;
    right: 20px;
    left: 20px;
    display: grid;
    gap: 8px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(8, 13, 35, .96);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .main-nav a {
    padding: 10px 8px;
  }

  .nav-cta {
    display: none;
  }

  .hero,
  .page-hero {
    min-height: auto;
    padding-top: 132px;
  }

  .hero-grid,
  .feature-grid,
  .page-hero-grid,
  .split-heading,
  .timeline-layout,
  .future-card,
  .detailed-game,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid.reverse .feature-image,
  .feature-grid.reverse .feature-copy {
    order: initial;
  }

  .hero p,
  .page-hero p,
  .hero h1,
  .page-hero h1 {
    margin-inline: 0;
  }

  .hero-actions,
  .hero-pills,
  .page-hero .inline-actions {
    justify-content: flex-start;
  }

  .float-card {
    display: none;
  }

  .services-grid,
  .game-card-grid,
  .features-grid,
  .about-grid,
  .call-detail-grid,
  .roadmap {
    grid-template-columns: 1fr;
  }

  .timeline-image img,
  .detailed-game-image img {
    min-height: 0;
  }

  .guide-nav {
    display: none;
  }

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

  .footer-about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(100% - 24px, var(--container));
  }

  .section {
    padding: 72px 0;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    font-size: 20px;
  }

  .brand-copy small {
    display: none;
  }

  .hero,
  .page-hero {
    padding-top: 116px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 40px;
  }

  .hero p,
  .page-hero p {
    font-size: 15px;
  }

  .hero-image-card {
    transform: none;
  }

  .hero-image-card img {
    min-height: 0;
    aspect-ratio: 1 / 1;
    object-position: 57% 52%;
  }

  .call-feature-list,
  .spec-list {
    grid-template-columns: 1fr;
  }

  .service-body,
  .game-content,
  .detailed-game-body,
  .info-panel,
  .guide-card {
    padding: 22px;
  }

  .cta-card {
    display: block;
    padding: 32px 24px;
    text-align: start;
  }

  .cta-card .btn {
    margin-top: 14px;
  }

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

  .footer-about {
    grid-column: auto;
  }

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

  .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
  }

  .hero-actions .btn,
  .page-hero .inline-actions .btn {
    width: min(100%, 330px);
  }

  .visual-steps i {
    transform: rotate(-90deg);
  }
}