@media (max-width: 1100px) {
  .site-header {
    padding-top: 8px;
  }

  .header-shell {
    width: min(calc(100% - 20px), 1280px);
  }

  .header-inner {
    justify-content: space-between;
    gap: 12px;
  }

  .brand {
    min-width: 0;
    max-width: calc(100% - 62px);
  }

  .brand-lockup {
    min-width: 0;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .header-actions {
    flex: 0 0 auto;
    margin: 0;
    align-items: center;
    justify-content: center;
  }

  .menu-button {
    display: grid;
    place-items: center;
    padding: 0;
    margin: 0;
    line-height: 0;
    flex: 0 0 auto;
  }

  .menu-button svg {
    display: block;
    margin: 0;
  }

  .mobile-menu {
    width: min(calc(100% - 20px), 1280px);
    margin: 8px auto 0;
    border: 1px solid transparent;
    border-radius: 18px;
    background: rgba(255,255,255,.98);
    box-shadow: 0 16px 38px rgba(23,56,83,.08);
  }

  .mobile-menu.is-open {
    max-height: 390px;
    border-color: var(--line);
  }

  .mobile-menu nav {
    width: 100%;
    padding: 8px 12px 12px;
  }

  .mobile-menu a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 10px;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }

  .mobile-menu a:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 90px;
  }

  .shell {
    width: min(calc(100% - 24px), var(--shell));
  }

  .site-header {
    padding-top: 6px;
  }

  .header-shell {
    width: calc(100% - 16px);
  }

  .header-inner {
    min-height: 70px;
    padding: 8px 10px;
    gap: 8px;
    border-radius: 17px;
  }

  .brand {
    gap: 8px;
    max-width: calc(100% - 54px);
  }

  .brand-mark-wrap {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
  }

  .brand-mark-wrap img {
    width: 42px;
    height: 42px;
  }

  .brand-lockup {
    gap: 0;
  }

  .brand-title {
    font-size: 27px;
    line-height: 1;
    letter-spacing: -1.35px;
  }

  .brand-to::after {
    bottom: -3px;
    height: 2px;
  }

  .brand-subtitle {
    display: none;
  }

  .menu-button {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
    border-radius: 13px;
  }

  .mobile-menu {
    width: calc(100% - 16px);
    margin-top: 6px;
    border-radius: 16px;
  }

  .mobile-menu nav {
    padding: 6px 10px 10px;
  }

  .mobile-menu a {
    min-height: 46px;
    font-size: 14px;
  }

  .hero-section {
    padding: 42px 0 48px;
  }

  .hero-inner {
    max-width: 100%;
  }

  .hero-badge {
    min-height: 30px;
    padding-inline: 11px;
    font-size: 10.5px;
  }

  .hero-inner h1 {
    margin-top: 18px;
    font-size: clamp(34px, 10.8vw, 46px);
    line-height: 1.42;
    letter-spacing: -1.7px;
  }

  .hero-lead {
    font-size: 13.5px;
    line-height: 1.95;
    padding-inline: 3px;
  }

  .prompt-wrap {
    margin-top: 28px;
  }

  .prompt-box {
    min-height: 62px;
    gap: 8px;
    padding: 8px 9px 8px 10px;
    border-radius: 18px;
  }

  .prompt-icon {
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
  }

  .prompt-box textarea {
    min-width: 0;
    min-height: 28px;
    font-size: 13.5px;
    line-height: 1.7;
  }

  .prompt-box textarea::placeholder {
    font-size: 13px;
  }

  .prompt-box button {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border-radius: 13px;
  }

  .prompt-suggestions {
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 7px;
    margin-top: 12px;
    padding: 0 2px 5px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .prompt-suggestions::-webkit-scrollbar {
    display: none;
  }

  .prompt-suggestions button {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 7px 11px;
    font-size: 10.5px;
  }

  .hero-highlights {
    gap: 8px 12px;
    margin-top: 22px;
    font-size: 10.5px;
  }

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

  .value-grid > div {
    padding: 17px 15px;
  }

  .intro-section,
  .how-section,
  .services-section,
  .audience-section {
    padding-block: 68px;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .intro-heading {
    position: static;
  }

  .intro-bento,
  .steps-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .bento-main {
    grid-column: auto;
  }

  .services-head {
    align-items: start;
    flex-direction: column;
    gap: 14px;
  }

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

  .final-card {
    min-height: auto;
    align-items: flex-start;
    flex-direction: column;
    gap: 24px;
    padding: 30px 24px;
  }

  .final-card > a {
    width: 100%;
    justify-content: center;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .shell {
    width: calc(100% - 20px);
  }

  .header-shell,
  .mobile-menu {
    width: calc(100% - 12px);
  }

  .header-inner {
    min-height: 66px;
    padding: 7px 8px;
  }

  .brand {
    gap: 6px;
    max-width: calc(100% - 50px);
  }

  .brand-mark-wrap,
  .brand-mark-wrap img {
    width: 38px;
    height: 38px;
  }

  .brand-mark-wrap {
    flex-basis: 38px;
  }

  .brand-title {
    font-size: 25px;
    letter-spacing: -1.15px;
  }

  .menu-button {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
  }

  .hero-section {
    padding-top: 36px;
  }

  .hero-inner h1 {
    font-size: clamp(31px, 10.4vw, 40px);
  }

  .prompt-box {
    min-height: 58px;
  }

  .prompt-box textarea,
  .prompt-box textarea::placeholder {
    font-size: 12.5px;
  }

  .prompt-box button {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
  }

  .value-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .step-card,
  .audience-card,
  .bento-card {
    min-height: auto;
  }
}