@media (min-width: 1440px) {
  .hero-stage { height: 760px; }
  .hero-copy { padding-top: 92px; }
}
@media (max-width: 1100px) {
  .hero-stage { height: 640px; }
  .hero h1 { font-size: 76px; }
  .hero-portrait { left: 32%; width: 66%; }
  .hero-note { top: 80px; font-size: 23px; }
  .hero-button { width: 116px; height: 116px; }
  .feature-orbits { gap: 14px; }
  .feature-bubble { font-size: 18px; }
  .feature-grid { column-gap: 28px; }
  .product-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 20px; }
  .product-card { grid-column: span 2; }
  .product-card:nth-child(4) { grid-column: 2 / span 2; }
  .detail-hero { gap: 36px; }
}
@media (min-width: 768px) and (max-width: 950px) {
  .feature-orbits { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 36px; width: min(640px, 100%); min-height: 0; }
  .feature-bubble:nth-child(n) { --bubble-size: 150px; --bubble-drop: 0px; }
  .feature-bubble:nth-child(2), .feature-bubble:nth-child(5) { --bubble-drop: 30px; }
}
@media (max-width: 767px) {
  html { scroll-padding-top: 20px; }
  .content, footer { width: calc(100% - 40px); }
  .hero { padding-inline: 20px; }
  .site-header { height: 72px; grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .brand strong { font-size: 19px; }
  .brand-logo { width: 24px; height: 24px; }
  .header-cta { font-size: 12px; }
  .header-cta span { margin-left: 3px; }
  .hero-stage { height: min(660px, calc(100dvh - 72px)); min-height: 480px; }
  .hero-copy { width: 100%; padding-top: 30px; }
  .eyebrow { margin-bottom: 18px; font-size: 10px; }
  .hero h1 { font-size: clamp(48px, 13.6vw, 76px); line-height: 1.12; }
  .lead { margin-top: 20px; font-size: 14px; line-height: 1.75; }
  .hero-portrait { left: 9%; bottom: 0; width: 102%; height: min(430px, calc(100dvh - 330px)); min-height: 230px; object-position: center bottom; }
  .orbit-outline { top: 150px; left: 0; width: 470px; height: 470px; }
  .hero-note { display: none; }
  .hero-button { left: 8px; bottom: 50px; width: 100px; height: 100px; gap: 7px; font-size: 13px; }
  .hero-button span { font-size: 24px; }
  .intro { padding: 36px 20px 48px; }
  .intro h2 { font-size: 28px; }
  .intro-orbit { top: 95px; width: 550px; height: 430px; }
  .feature-orbits { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 24px; width: min(350px, 100%); min-height: 0; margin-top: 24px; }
  .feature-bubble:nth-child(n) { --bubble-size: 132px; --bubble-drop: 0px; gap: 8px; font-size: 16px; }
  .feature-bubble:nth-child(odd) { --bubble-drop: 18px; }
  .feature-bubble:nth-child(3) { --bubble-size: 146px; }
  .feature-bubble span { font-size: 24px; }
  .features { padding-block: 48px 32px; }
  .section-title, .center-title { margin-bottom: 34px; }
  .section-title h2, .center-title h2, .download h2 { font-size: 30px; }
  .section-title p, .center-title p { margin-top: 12px; font-size: 14px; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .feature-card { padding-block: 22px; }
  .feature-card h3 { margin-bottom: 10px; font-size: 20px; line-height: 1.5; }
  .feature-card p { font-size: 16px; }
  .products { padding-block: 32px 64px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .product-card, .product-card:nth-child(4) { grid-column: auto; border-radius: 16px; }
  .product-card:last-child { grid-column: 1 / -1; width: calc((100% - 14px) / 2); justify-self: center; }
  .product-info { padding: 18px 14px 20px; }
  .product-info h3 { font-size: 19px; }
  .product-kind { font-size: 13px; }
  .product-description { margin: 12px 0 20px; font-size: 14px; line-height: 1.75; }
  .product-price strong { font-size: 28px; }
  .product-link { gap: 8px; font-size: 14px; }
  .getting-started, .faq { padding-block: 36px; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .steps li { padding-top: 20px; }
  .step-number { font-size: 32px; }
  .steps h3 { margin-top: 16px; font-size: 20px; }
  .steps p { max-width: none; }
  .faq-list details { padding-block: 22px; }
  .faq-list summary { font-size: 18px; }
  .detail-header { width: calc(100% - 40px); height: 72px; grid-template-columns: 1fr auto; }
  .detail-header nav { display: none; }
  .detail-hero { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-block: 28px 52px; }
  .detail-image { width: min(300px, 90%); border-radius: 16px; }
  .detail-kind { margin-bottom: 12px; font-size: 15px; }
  .detail-copy h1 { font-size: 44px; }
  .detail-description { margin: 20px 0; font-size: 16px; }
  .detail-copy .product-price { margin-block: 24px; }
  .detail-copy .product-price strong { font-size: 38px; }
  .detail-actions a { min-height: 48px; padding-inline: 20px; font-size: 14px; }
  .detail-facts { margin-bottom: 48px; }
  .detail-facts dl { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .detail-app { margin-bottom: 36px; padding-block: 32px; }
  .download { margin-bottom: 36px; padding: 36px 18px; }
  .download > p { font-size: 14px; }
  .download > span { margin-top: 14px; font-size: 13px; }
  .download-grid { gap: 14px; margin-top: 26px; }
  .download-box > strong { font-size: 13px; }
  .download-box .qr-image { width: min(126px, 100%); height: auto; aspect-ratio: 1; border-width: 7px; }
  .download-box > small { font-size: 11px; }
  .download-actions { gap: 14px; }
  .download-action { min-height: 46px; font-size: 13px; }
  .signoff { font-size: 12px; }
  footer { padding: 28px 0; font-size: 11px; }
  footer strong { font-size: 17px; }
}
@media (max-width: 359px) {
  .hero-stage { height: min(620px, calc(100dvh - 72px)); }
  .hero-button { width: 88px; height: 88px; bottom: 40px; }
  .section-title h2, .center-title h2, .download h2 { font-size: 27px; }
}