@media (max-width: 700px) {
  html { scroll-padding-top: 70px; }
  body { overflow-x: hidden; font-size: 16px; }
  .announcement { padding: .45rem .8rem; font-size: .68rem; line-height: 1.35; }
  .site-header { position: sticky; top: 0; z-index: 80; height: 68px; padding: 0 1rem; gap: .75rem; }
  .brand { font-size: 1rem; }
  .brand-o { width: 28px; height: 28px; }
  .menu-button { min-width: 48px; min-height: 44px; padding: .5rem; border-radius: 999px; background: #edf7f7; color: var(--navy); font-weight: 800; }
  .site-header nav.open { top: 68px; z-index: 90; gap: 0; padding: .5rem 1rem 1rem; box-shadow: 0 18px 35px rgba(8,45,85,.13); }
  .site-header nav.open a { display: flex; min-height: 48px; align-items: center; border-bottom: 1px solid var(--line); font-size: 1rem; }

  .hero { display: grid; grid-template-columns: minmax(0, 1fr); min-height: auto; overflow: hidden; }
  .hero-copy { width: 100%; padding: 2.8rem 1.15rem 1.35rem; }
  .hero .eyebrow { margin-bottom: .9rem; font-size: .68rem; }
  .hero h1 { width: 100%; max-width: 430px; font-size: clamp(3.35rem, 16vw, 4.35rem); line-height: .9; }
  .hero-sub { margin: 1.5rem 0; font-size: 1rem; line-height: 1.5; }
  .hero-actions { width: 100%; flex-direction: row; flex-wrap: wrap; gap: .65rem 1.25rem; }
  .hero-actions .button.primary { flex: 1 0 100%; min-height: 50px; }
  .hero-actions .button.text { min-height: 44px; }
  .proof-row { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem 1rem; margin-top: 1.7rem; font-size: .8rem; }
  .hero-art { width: 100%; min-height: 380px; margin-top: .4rem; overflow: hidden; isolation: isolate; }
  .hero-art .orb { aspect-ratio: 1; border-radius: 50%; }
  .hero-art .orb-one { width: 330px; height: 330px; right: 50%; top: 0; transform: translateX(50%); }
  .hero-art .orb-two { width: 205px; height: 205px; right: auto; left: -7%; bottom: -3%; }
  .hero-art .orb-three { width: 190px; height: 190px; right: -5%; bottom: -2%; }
  .hero-bottle { bottom: .4rem; }
  .hero-bottle.b1 { left: 2%; height: 255px; }
  .hero-bottle.b2 { left: 27%; height: 335px; }
  .hero-bottle.b3 { left: 57%; height: 275px; }
  .hero-bottle img { width: auto; max-width: none; height: 100%; object-fit: contain; }
  .hero-bottle span { top: 37%; width: 48px; padding: .2rem .05rem; font-size: .43rem; }
  .hero-bottle.b2 span { width: 58px; font-size: .46rem; }
  .hero-bottle.b1 span,.hero-bottle.b3 span { width: 46px; }

  .route-split a { min-height: 118px; padding: 1.25rem; }
  .route-split strong { font-size: 1.25rem; }
  .statement,.products,.how,.professional,.faq,.connect { padding-top: 4.5rem; padding-bottom: 4.5rem; }
  .statement h2,.section-heading h2,.how h2,.details h2,.professional h2,.faq h2,.connect h2 { font-size: clamp(2.65rem, 12vw, 3.7rem); line-height: .98; }
  .statement > p:last-child { margin-top: 1.4rem; font-size: 1rem; }
  .section-heading { gap: 1.3rem; margin-bottom: 2rem; }
  .section-heading > p { margin: 0; font-size: .95rem; }
  .product-grid { gap: .8rem; }
  .product-card { min-height: 540px; padding: 1.15rem; }
  .product-bottle { height: 285px; }
  .product-card h3 { font-size: 1.8rem; }
  .product-card p { font-size: .95rem; }
  .lifestyle-steps { gap: .9rem; }
  .step-photo { height: 285px; }
  .step-copy { padding: 1.25rem; }
  .details-visual { grid-template-columns: .8fr 1.2fr; min-height: 460px; padding: 2rem .8rem 2rem 1.1rem; }
  .details-visual > img { width: auto; max-width: 165px; height: 330px; object-fit: contain; }
  .device-callout strong { font-size: 2.15rem; }
  .device-callout p { font-size: .8rem; line-height: 1.45; }
  .details-copy { padding: 4rem 1.2rem; }
  .feature { grid-template-columns: 34px 1fr; }
  .professional { gap: 2.4rem; }
  .faq { gap: 2.2rem; }
  details { padding: 1.15rem 0; }
  summary { min-height: 44px; align-items: center; font-size: 1rem; }
  .connect { gap: 2.2rem; }
  .lead-options a { min-height: 96px; padding: 1.2rem; }
  footer { padding: 3rem 1.2rem 2rem; }
  .footer-links { gap: .8rem 1.3rem; margin: 2rem 0; }
  .legal { gap: 1rem; font-size: .72rem; }

  .portfolio-hero { padding: 3.6rem 1.15rem 0; gap: 1.5rem; }
  .portfolio-hero h1 { font-size: clamp(3.35rem, 16vw, 4.7rem); line-height: .9; }
  .portfolio-intro { padding-bottom: 0; font-size: 1rem; }
  .color-spectrum { height: 9px; margin-top: 1rem; }
  .portfolio-browser { padding: 4rem 0; }
  .browser-head { gap: 1.4rem; padding: 0 1.15rem 1.8rem; }
  .browser-head h2 { font-size: 3rem; }
  .filter-row { width: calc(100vw - 1.15rem); padding: 0 1.15rem 0 0; scrollbar-width: none; }
  .filter-row::-webkit-scrollbar { display: none; }
  .filter { min-height: 44px; padding: .65rem .9rem; white-space: nowrap; }
  .product-rail { grid-auto-columns: 80vw; gap: .7rem; padding: 0 7vw 1rem; scroll-padding-left: 7vw; }
  .portfolio-card { min-height: 535px; padding: 1.15rem; }
  .portfolio-card:hover { transform: none; }
  .portfolio-card img { width: auto; max-width: 190px; height: 310px; object-fit: contain; margin: 2.2rem auto 1rem; }
  .portfolio-card h3 { font-size: 1.9rem; }
  .portfolio-card p { min-height: 0; margin-bottom: 1rem; font-size: .95rem; }
  .portfolio-card button { min-height: 48px; }
  .swipe-note { margin: .75rem 1.15rem 0; font-size: .78rem; }
  .portfolio-principles,.development-note { padding: 4.5rem 1.15rem; }
  .portfolio-principles h2,.development-note h2,.portfolio-cta h2 { font-size: 3rem; }
  .portfolio-principles { gap: 1.7rem; padding-top: 3.6rem; padding-bottom: 3.6rem; background: #f4f9fa; }
  .portfolio-principles h2 { font-size: clamp(2.65rem, 12vw, 3.2rem); line-height: .96; }
  .principle-grid { gap: .85rem; }
  .principle-grid .principle-card { min-height: 250px; padding: 1.15rem; border-radius: 14px; }
  .principle-grid .principle-card>span { font-size: .65rem; }
  .principle-grid .principle-card>div { max-width: 66%; }
  .principle-grid .principle-card h3 { margin: 1.25rem 0 .45rem; font-size: 1.5rem; line-height: 1.05; }
  .principle-grid .principle-card p { margin: 0; font-size: .88rem; line-height: 1.45; }
  .principle-grid .principle-card img { right: -15px; bottom: -25px; height: 220px; }
  .principle-grid .principle-card:after { right: -45px; bottom: -65px; width: 220px; height: 220px; }
  .development-note { gap: 2rem; }
  .portfolio-cta { padding: 4.5rem 1.15rem; }

  .product-modal { display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: 190px auto; width: calc(100vw - 1rem); height: auto; max-height: calc(100dvh - 1rem); border-radius: 14px; overflow-y: auto; overscroll-behavior: contain; }
  .modal-color { display: grid; min-height: 190px; place-items: center; overflow: hidden; background: color-mix(in srgb, var(--modal-color) 92%, white 8%); }
  .modal-color img { width: auto; max-width: 145px; height: 178px; object-fit: contain; margin-top: 8px; filter: drop-shadow(0 12px 14px rgba(8,45,85,.18)); }
  .modal-copy { display: block; min-height: 0; overflow: visible; padding: 1.1rem 1.1rem calc(4.8rem + env(safe-area-inset-bottom)); }
  .modal-header { padding-right: 2.7rem; }
  .modal-copy .eyebrow { margin-bottom: .45rem; font-size: .68rem; }
  .modal-copy h2 { font-size: 2.3rem; line-height: .95; }
  .modal-lead { margin: .65rem 0 .9rem; font-size: .92rem; line-height: 1.48; }
  .modal-details { gap: .7rem; }
  .modal-section { padding-top: .65rem; }
  .modal-section h3 { font-size: .9rem; }
  .modal-section p { font-size: .84rem; line-height: 1.48; }
  .modal-footer { display: flex; align-items: stretch; margin-top: .85rem; padding-top: .7rem; padding-right: 0; }
  .modal-tags { gap: .3rem; }
  .modal-tags span { padding: .35rem .5rem; font-size: .68rem; }
  .modal-footer .button { min-height: 46px; }
  .modal-close { position: absolute; top: .65rem; right: .65rem; }
  .modal-arrow { position: fixed; top: auto; bottom: max(1rem, env(safe-area-inset-bottom)); transform: none; }
  .modal-prev { left: calc(50% - 48px); right: auto; }
  .modal-next { right: calc(50% - 48px); }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 3.2rem; }
  .hero-art { min-height: 350px; }
  .hero-bottle.b1 { height: 225px; }
  .hero-bottle.b2 { height: 300px; }
  .hero-bottle.b3 { height: 245px; }
  .proof-row { grid-template-columns: 1fr; }
  .portfolio-hero h1 { font-size: 3.2rem; }
  .product-modal { grid-template-rows: 168px auto; }
  .modal-color { min-height: 168px; }
  .modal-color img { max-width: 128px; height: 156px; }
}