:root {
  --linen: #f7f5f3;
  --ink: #0d0d0d;
  --paper: #ffffff;
  --stone: #6e6a69;
  --pebble: #9a9796;
  --line: rgba(13, 13, 13, 0.14);
  --font: "Iowan Old Style", "Baskerville", "Times New Roman", Georgia, serif;
  --max: 1280px;
  --radius: 16px;
  --tile-radius: 12px;
  --ease: 220ms ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 132px; }
body {
  margin: 0;
  padding-top: 128px;
  background: var(--linen);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
button, a, select { cursor: pointer; }
button { background: none; border: 0; }
p, h1, h2, h3, figure, dl, dd { margin: 0; }
h1, h2, h3 { font-weight: 350; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 300;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.prototype-banner {
  position: fixed;
  inset: 0 0 auto;
  z-index: 110;
  min-height: 32px;
  padding: 6px 20px;
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 0;
}

.pill-nav,
.checkout-nav {
  position: fixed;
  top: 44px;
  left: 50%;
  z-index: 100;
  width: min(calc(100% - 32px), var(--max));
  min-height: 68px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 8px 10px 8px 20px;
  border: 1px solid var(--line);
  border-radius: 9999px;
  background: var(--paper);
}
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { width: 108px; height: auto; filter: grayscale(1) brightness(0.08); }
.desktop-nav { display: flex; align-items: center; gap: 24px; }
.desktop-nav a,
.bag-link { font-size: 15px; letter-spacing: 0; }
.desktop-nav a { position: relative; }
.desktop-nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 -4px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--ease);
}
.desktop-nav a:hover::after,
.desktop-nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.bag-link { min-height: 44px; padding: 8px 4px; }
.bag-link span { display: inline-grid; place-items: center; width: 24px; height: 24px; margin-left: 4px; border: 1px solid var(--line); border-radius: 999px; }

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  text-align: center;
  transition: background-color var(--ease), color var(--ease), border-color var(--ease);
}
.button-ink { border: 1px solid var(--ink); background: var(--ink); color: var(--paper); }
.button-ink:hover { background: #33302f; border-color: #33302f; }
.button-paper { border: 1px solid var(--line); background: var(--paper); color: var(--ink); }
.button-paper:hover { border-color: var(--ink); }
.button[disabled] { cursor: not-allowed; opacity: 0.45; }
.nav-buy { min-height: 50px; padding: 12px 22px; }

.menu-button { display: none; margin-left: auto; width: 48px; height: 48px; border-radius: 999px; }
.menu-button span { display: block; width: 20px; height: 1px; margin: 6px auto; background: var(--ink); transition: transform var(--ease); }
.menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.mobile-menu a:not(.button), .mobile-menu button:not(.button) { display: flex; align-items: center; width: 100%; min-height: 48px; padding: 10px 4px; border-bottom: 1px solid var(--line); }
.mobile-menu .button { width: 100%; margin-top: 12px; }

.page-shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.eyebrow { font-size: 15px; font-weight: 500; line-height: 1.3; letter-spacing: 0; text-transform: uppercase; }
.microcopy, .field-help, small { color: var(--stone); font-size: 14px; letter-spacing: 0; }

.collage-hero {
  position: relative;
  width: min(calc(100% - 32px), 1440px);
  min-height: 720px;
  margin: 0 auto 80px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.hero-copy { position: relative; z-index: 10; width: min(640px, 75%); text-align: center; }
.hero-copy h1 {
  margin: 20px 0 30px;
  font-size: clamp(66px, 8.2vw, 112px);
  line-height: 0.82;
  letter-spacing: -0.055em;
}
.hero-intro { max-width: 570px; margin: 0 auto; font-size: 18px; line-height: 1.45; }
.button-pair { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 30px; }
.hero-copy .microcopy { margin-top: 14px; }
.float-tile { position: absolute; z-index: 2; overflow: hidden; border-radius: var(--tile-radius); }
.float-tile img { width: 100%; height: 100%; object-fit: cover; }
.tile-one { width: 190px; height: 118px; top: 8%; left: 6%; transform: rotate(-3deg); }
.tile-two { width: 145px; height: 112px; top: 13%; right: 10%; transform: rotate(2deg); background: var(--paper); }
.tile-two img { object-fit: contain; }
.tile-three { width: 140px; height: 174px; bottom: 9%; left: 13%; transform: rotate(3deg); }
.tile-four { width: 120px; height: 150px; bottom: 8%; right: 8%; transform: rotate(-2deg); }
.tile-five { width: 170px; height: 112px; top: 43%; left: 0; transform: rotate(2deg); }
.tile-six { width: 92px; height: 150px; top: 42%; right: 1%; transform: rotate(-3deg); }

.film-section { margin-bottom: 130px; }
.film-card { position: relative; display: block; min-height: 640px; overflow: hidden; border-radius: var(--radius); color: var(--paper); }
.film-card::after { content: ""; position: absolute; inset: 0; background: rgba(13, 13, 13, 0.18); }
.film-card > img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; }
.film-word { position: absolute; z-index: 2; top: 50%; transform: translateY(-50%); font-size: clamp(40px, 5vw, 72px); line-height: 1; letter-spacing: -0.045em; }
.film-left { left: 7%; }
.film-right { right: 7%; }
.play-mark { position: absolute; z-index: 3; inset: 50% auto auto 50%; transform: translate(-50%, -50%); width: 74px; height: 74px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.7); border-radius: 999px; }
.play-mark i { display: block; width: 0; height: 0; margin-left: 4px; border-top: 8px solid transparent; border-bottom: 8px solid transparent; border-left: 13px solid var(--paper); }
.film-caption { position: absolute; z-index: 2; bottom: 26px; left: 50%; transform: translateX(-50%); width: calc(100% - 40px); text-align: center; font-size: 14px; letter-spacing: 0; }

.gallery-section, .editorial-section, .evidence-section, .app-story, .product-editorial, .interface-story, .safety-section, .faq-section { margin-bottom: 140px; }
.section-heading { margin-bottom: 48px; }
.section-heading h2, .editorial-title h2, .app-copy h2, .interface-copy h2, .safety-section h2, .final-cta h2 {
  margin-top: 18px;
  font-size: clamp(48px, 5.2vw, 74px);
  line-height: 0.98;
  letter-spacing: -0.05em;
}
.split-heading { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr); gap: 48px; align-items: end; }
.split-heading > p { max-width: 460px; color: var(--stone); font-size: 18px; }
.center-heading { max-width: 780px; margin-inline: auto; text-align: center; }
.center-heading > p:last-child { max-width: 650px; margin: 22px auto 0; color: var(--stone); font-size: 18px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.image-card figure { height: 440px; overflow: hidden; border-radius: var(--radius); background: var(--paper); }
.image-card figure img, .image-card figure video { width: 100%; height: 100%; object-fit: cover; }
.image-card .video-figure video { object-fit: contain; }
.image-card > div { display: grid; grid-template-columns: 36px 1fr; gap: 4px 12px; padding-top: 18px; }
.image-card > div > span { grid-row: 1 / 3; color: var(--stone); font-size: 14px; }
.image-card h3 { font-size: 24px; line-height: 1.2; letter-spacing: -0.02em; }
.image-card p { margin-top: 8px; color: var(--stone); }

.editorial-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, .8fr); gap: 11vw; align-items: start; }
.editorial-title { position: sticky; top: 150px; }
.editorial-notes article { padding: 32px 0 40px; border-top: 1px solid var(--line); }
.editorial-notes article:last-child { border-bottom: 1px solid var(--line); }
.editorial-notes span { color: var(--stone); font-size: 14px; }
.editorial-notes h3 { margin-top: 24px; font-size: 32px; line-height: 1.1; letter-spacing: -0.04em; }
.editorial-notes p { margin-top: 14px; color: var(--stone); }

.evidence-collage { display: grid; grid-template-columns: repeat(12, 1fr); grid-template-rows: 290px 260px; gap: 24px; }
.evidence-collage figure, .paper-note { overflow: hidden; border-radius: var(--radius); }
.evidence-collage img { width: 100%; height: 100%; object-fit: cover; }
.evidence-wide { grid-column: 1 / 9; grid-row: 1 / 3; }
.evidence-tall { grid-column: 9 / 13; grid-row: 1 / 2; }
.paper-note { grid-column: 9 / 13; grid-row: 2 / 3; padding: 24px; background: var(--paper); }
.paper-note h3 { margin-top: 18px; font-size: 30px; line-height: 1.08; letter-spacing: -0.04em; }
.paper-note > p:not(.eyebrow) { margin-top: 14px; color: var(--stone); }
.text-link { display: inline-flex; gap: 8px; margin-top: 20px; padding-bottom: 3px; border-bottom: 1px solid var(--ink); font-size: 17px; }

.app-story { min-height: 650px; display: grid; grid-template-columns: minmax(0, .8fr) minmax(440px, 1.2fr); gap: 8vw; align-items: center; padding: 70px; border-radius: var(--radius); background: var(--paper); }
.app-copy > p:not(.eyebrow) { max-width: 510px; margin-top: 24px; color: var(--stone); font-size: 18px; }
.phone-collage { position: relative; min-height: 540px; }
.phone-collage figure { position: absolute; width: 250px; overflow: hidden; border-radius: var(--radius); background: var(--linen); }
.phone-collage figure:first-child { top: 46px; left: 8%; transform: rotate(-4deg); }
.phone-collage figure:last-child { top: 0; right: 8%; transform: rotate(3deg); }
.phone-collage img { width: 100%; height: auto; }

.final-cta { margin-bottom: 80px; padding: 90px 24px; border-radius: var(--radius); background: var(--paper); text-align: center; }
.final-cta > p:not(.eyebrow) { max-width: 560px; margin: 24px auto 0; color: var(--stone); font-size: 18px; }
.compact-cta h2 { font-size: clamp(48px, 5vw, 68px); }

.site-footer { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; padding-block: 64px 40px; border-top: 1px solid var(--line); color: var(--stone); font-size: 14px; letter-spacing: 0; }
.footer-brand img { width: 130px; height: auto; filter: grayscale(1) brightness(.08); }
.footer-brand p { margin-top: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 24px; color: var(--ink); }
.footer-note { max-width: 690px; }
.site-footer > p:last-child { text-align: right; }

.cart-overlay { position: fixed; inset: 0; z-index: 190; background: rgba(13,13,13,.36); }
.cart-drawer { position: fixed; inset: 0 0 0 auto; z-index: 200; width: min(440px, 100%); display: flex; flex-direction: column; padding: 24px; border-left: 1px solid var(--line); background: var(--paper); transform: translateX(101%); transition: transform 260ms ease; }
.cart-drawer.is-open { transform: translateX(0); }
.cart-drawer > header { display: flex; align-items: center; justify-content: space-between; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.cart-drawer h2 { font-size: 38px; letter-spacing: -0.04em; }
.cart-drawer > header button { min-width: 52px; min-height: 44px; }
.cart-empty { margin: auto 0; text-align: center; }
.cart-empty p { margin-bottom: 20px; color: var(--stone); }
.cart-line { display: grid; grid-template-columns: 112px 1fr; gap: 18px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.cart-line > img { width: 112px; height: 112px; object-fit: contain; border-radius: var(--radius); background: var(--linen); }
.cart-line h3 { font-size: 24px; }
.cart-line p { margin: 4px 0 16px; color: var(--stone); font-size: 14px; }
.cart-summary { margin-top: auto; padding-top: 24px; }
.cart-summary p { display: grid; gap: 4px; margin-bottom: 20px; }
.cart-summary p span, .cart-summary small { color: var(--stone); }
.cart-summary .button { width: 100%; }
.cart-summary small { display: block; margin-top: 12px; text-align: center; }
.quantity-stepper { width: max-content; display: inline-flex; align-items: center; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.quantity-stepper button { width: 44px; height: 44px; font-size: 20px; }
.quantity-stepper span, .quantity-stepper input { width: 48px; text-align: center; }

.breadcrumb { display: flex; align-items: center; gap: 10px; margin-block: 16px 36px; color: var(--stone); font-size: 14px; letter-spacing: 0; }
.breadcrumb a { color: var(--ink); }
.product-shell { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(370px, .7fr); gap: 48px; align-items: start; margin-bottom: 140px; }
.product-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.product-gallery figure { overflow: hidden; border-radius: var(--radius); background: var(--paper); }
.product-main-media { grid-column: 1 / 3; }
.product-main-media video { width: 100%; height: auto; aspect-ratio: 1600 / 1130; object-fit: contain; }
.product-main-media figcaption { display: flex; justify-content: space-between; padding: 14px 18px; border-top: 1px solid var(--line); color: var(--stone); font-size: 14px; }
.product-gallery-tall, .product-gallery-square { min-height: 380px; }
.product-gallery-tall img, .product-gallery-square img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery-square img { object-fit: contain; }
.purchase-panel { position: sticky; top: 132px; padding: 32px; border-radius: var(--radius); background: var(--paper); }
.purchase-panel h1 { margin-top: 16px; font-size: clamp(56px, 5vw, 76px); line-height: .92; letter-spacing: -.055em; }
.product-lead { margin-top: 22px; color: var(--stone); font-size: 18px; }
.price-status { display: grid; gap: 3px; margin-top: 28px; padding: 18px 0; border-block: 1px solid var(--line); }
.price-status strong { font-size: 24px; font-weight: 400; }
.price-status span { color: var(--stone); font-size: 14px; }
.included-summary { display: grid; gap: 8px; padding: 22px 0 22px 20px; margin: 0; border-bottom: 1px solid var(--line); color: var(--stone); }
.included-summary li::marker { color: var(--ink); }
.product-form fieldset { min-width: 0; margin: 0; padding: 22px 0; border: 0; border-bottom: 1px solid var(--line); }
.product-form legend { padding: 0; font-size: 18px; font-weight: 500; }
.field-help { margin: 8px 0 16px; }
.choice-row { margin-top: 14px; min-height: 64px; display: flex; align-items: center; gap: 14px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); cursor: pointer; }
.choice-row > span:nth-child(2), .choice-row > span:first-child:not(.finish-swatch) { display: grid; }
.choice-row small { display: block; margin-top: 2px; }
.choice-row input { width: 20px; height: 20px; margin-left: auto; accent-color: var(--ink); }
.finish-swatch { width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 999px; background: #12182a; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
label { display: grid; gap: 8px; font-size: 15px; font-weight: 500; letter-spacing: 0; }
input, select { width: 100%; min-height: 52px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); font-size: 16px; font-weight: 400; outline: none; }
input:focus, select:focus { border-color: var(--ink); outline: 2px solid rgba(13,13,13,.08); }
.product-quantity { margin-top: 12px; }
.product-quantity input { min-height: 44px; padding: 0; border: 0; border-radius: 0; -moz-appearance: textfield; }
.product-quantity input::-webkit-inner-spin-button { -webkit-appearance: none; }
.purchase-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.form-status { margin-top: 14px; color: var(--stone); font-size: 14px; }

.product-feature-grid .image-card figure { height: 500px; }
.interface-story { min-height: 620px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .8fr); gap: 7vw; align-items: center; }
.interface-screen { position: relative; min-height: 600px; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius); background: var(--ink); }
.interface-screen video { width: 72%; max-height: 520px; object-fit: contain; }
.interface-screen > span { position: absolute; bottom: 18px; color: rgba(255,255,255,.7); font-size: 14px; }
.interface-copy > p:not(.eyebrow) { margin-top: 24px; color: var(--stone); font-size: 18px; }
.interface-copy dl { margin-top: 34px; }
.interface-copy dl div { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); }
.interface-copy dt { color: var(--stone); }
.product-app { margin-top: 0; }
.safety-section { display: grid; grid-template-columns: 1fr 1fr; gap: 9vw; padding-block: 56px; border-block: 1px solid var(--line); }
.safety-section > div:last-child { display: grid; gap: 20px; color: var(--stone); font-size: 18px; }

.accordion { max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
.accordion article { border-bottom: 1px solid var(--line); }
.accordion h3 { font-size: 24px; line-height: 1.25; }
.accordion h3 button { width: 100%; min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0; text-align: left; }
.accordion h3 i { position: relative; flex: 0 0 30px; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 999px; }
.accordion h3 i::before, .accordion h3 i::after { content: ""; position: absolute; top: 50%; left: 50%; width: 10px; height: 1px; background: var(--ink); transform: translate(-50%,-50%); }
.accordion h3 i::after { transform: translate(-50%,-50%) rotate(90deg); transition: transform var(--ease); }
.accordion button[aria-expanded="true"] i::after { transform: translate(-50%,-50%) rotate(0); }
.answer { max-width: 680px; padding: 0 0 26px; color: var(--stone); }

.checkout-page { padding-top: 134px; }
.checkout-nav { justify-content: space-between; }
.checkout-steps { display: flex; gap: 8px; }
.checkout-steps span { padding: 8px 12px; border-radius: var(--radius); color: var(--pebble); font-size: 14px; }
.checkout-steps .is-current { background: var(--linen); color: var(--ink); }
.checkout-back { min-height: 48px; padding: 10px 18px; }
.checkout-shell { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .65fr); gap: 64px; align-items: start; padding: 48px 0 100px; }
.checkout-title { max-width: 680px; margin-bottom: 48px; }
.checkout-title h1 { margin-top: 18px; font-size: clamp(52px, 5vw, 76px); line-height: .95; letter-spacing: -.052em; }
.checkout-title > p:last-child { max-width: 600px; margin-top: 20px; color: var(--stone); font-size: 18px; }
.checkout-form-panel form { display: grid; gap: 24px; }
.checkout-form-panel fieldset { display: grid; gap: 16px; margin: 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.checkout-form-panel legend { padding: 0 8px; font-size: 24px; }
.checkout-form-panel legend span { margin-right: 12px; color: var(--stone); font-size: 14px; }
.checkout-form-panel label small { margin-top: -2px; font-weight: 400; }
.checkout-placeholder { padding: 18px; border-radius: var(--radius); background: var(--linen); }
.checkout-placeholder p { margin-top: 5px; color: var(--stone); }
.checkout-submit { width: 100%; }
.order-summary { position: sticky; top: 132px; padding: 30px; border-radius: var(--radius); background: var(--paper); }
.order-summary h2 { margin-top: 12px; font-size: 42px; line-height: 1; letter-spacing: -.045em; }
.summary-product { display: grid; grid-template-columns: 130px 1fr; gap: 18px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.summary-product figure { width: 130px; height: 130px; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius); background: var(--linen); }
.summary-product img { width: 100%; height: 100%; object-fit: contain; }
.summary-product h3 { font-size: 24px; }
.summary-product p { margin-top: 6px; color: var(--stone); font-size: 14px; }
.summary-list { padding-top: 12px; }
.summary-list div { display: flex; justify-content: space-between; gap: 20px; padding: 11px 0; color: var(--stone); }
.summary-list dd { max-width: 190px; text-align: right; }
.summary-list .summary-total { margin-top: 10px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink); font-size: 18px; }
.summary-note { margin-top: 20px; padding: 18px; border-radius: var(--radius); background: var(--linen); }
.summary-note p { margin-top: 6px; color: var(--stone); font-size: 14px; }
.secure-note { margin-top: 18px; color: var(--stone); font-size: 14px; text-align: center; }
.checkout-empty { padding: 40px 0; text-align: center; }
.checkout-empty .button { margin-top: 18px; }

@media (max-width: 1080px) {
  .tile-one { left: 1%; }
  .tile-two { right: 3%; }
  .tile-three { left: 4%; }
  .tile-four { right: 3%; }
  .film-card { min-height: 540px; }
  .image-card figure { height: 360px; }
  .paper-note { padding: 18px; }
  .paper-note h3 { font-size: 26px; }
  .app-story { padding: 48px; }
  .phone-collage figure { width: 210px; }
  .product-shell { grid-template-columns: minmax(0, 1fr) 390px; gap: 28px; }
  .purchase-panel { padding: 24px; }
}

@media (max-width: 880px) {
  body { padding-top: 118px; }
  .pill-nav, .checkout-nav { top: 42px; min-height: 64px; padding-left: 18px; }
  .desktop-nav, .nav-actions { display: none; }
  .menu-button { display: block; }
  .collage-hero { min-height: 670px; }
  .hero-copy { width: min(560px, 78%); }
  .tile-one { width: 150px; height: 95px; }
  .tile-two { width: 120px; height: 94px; }
  .tile-three { width: 110px; height: 138px; }
  .tile-four { width: 100px; height: 125px; }
  .tile-five { width: 140px; height: 94px; }
  .tile-six { width: 76px; height: 122px; }
  .film-card { min-height: 460px; }
  .gallery-section, .editorial-section, .evidence-section, .app-story, .product-editorial, .interface-story, .safety-section, .faq-section { margin-bottom: 100px; }
  .split-heading { grid-template-columns: 1fr; gap: 22px; align-items: start; }
  .feature-grid { grid-template-columns: 1fr; gap: 54px; }
  .image-card figure, .product-feature-grid .image-card figure { height: min(70vw, 560px); }
  .editorial-section { grid-template-columns: 1fr; gap: 44px; }
  .editorial-title { position: static; }
  .evidence-collage { grid-template-rows: 350px 270px; }
  .evidence-wide { grid-column: 1 / 8; }
  .evidence-tall, .paper-note { grid-column: 8 / 13; }
  .app-story { grid-template-columns: 1fr; gap: 30px; }
  .phone-collage { width: min(520px, 100%); margin: 0 auto; }
  .site-footer { grid-template-columns: 1fr; gap: 30px; }
  .site-footer nav { justify-content: flex-start; }
  .site-footer > p:last-child { text-align: left; }
  .product-shell { grid-template-columns: 1fr; }
  .purchase-panel { position: static; }
  .interface-story { grid-template-columns: 1fr; gap: 48px; }
  .interface-screen { min-height: 520px; }
  .safety-section { grid-template-columns: 1fr; gap: 32px; }
  .checkout-steps { display: none; }
  .checkout-shell { grid-template-columns: 1fr; gap: 48px; }
  .order-summary { position: static; grid-row: 1; }
}

@media (max-width: 620px) {
  body { padding-top: 110px; }
  .prototype-banner { min-height: 28px; padding-block: 4px; font-size: 12px; }
  .pill-nav, .checkout-nav { top: 36px; width: calc(100% - 20px); min-height: 60px; padding: 6px 8px 6px 16px; }
  .brand img { width: 92px; }
  .page-shell { width: calc(100% - 28px); }
  .collage-hero { width: calc(100% - 20px); min-height: 680px; margin-bottom: 60px; }
  .hero-copy { width: 92%; }
  .hero-copy h1 { margin-block: 18px 24px; font-size: clamp(58px, 20vw, 82px); }
  .hero-intro { padding-inline: 20px; font-size: 16px; }
  .button-pair { width: min(310px, 100%); margin-inline: auto; }
  .button-pair .button { width: 100%; }
  .float-tile { opacity: .94; }
  .tile-one { width: 120px; height: 72px; top: 4%; left: -7%; }
  .tile-two { width: 100px; height: 78px; top: 5%; right: -5%; }
  .tile-three { width: 98px; height: 120px; bottom: 3%; left: -4%; }
  .tile-four { width: 94px; height: 118px; bottom: 3%; right: -3%; }
  .tile-five, .tile-six { display: none; }
  .film-section { width: calc(100% - 20px); margin-bottom: 90px; }
  .film-card { min-height: 520px; }
  .film-word { top: auto; bottom: 76px; transform: none; font-size: 44px; }
  .film-left { left: 22px; }
  .film-right { right: 22px; }
  .play-mark { width: 62px; height: 62px; }
  .film-caption { bottom: 24px; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2, .editorial-title h2, .app-copy h2, .interface-copy h2, .safety-section h2, .final-cta h2 { font-size: clamp(44px, 14vw, 60px); }
  .split-heading > p, .center-heading > p:last-child, .app-copy > p:not(.eyebrow), .interface-copy > p:not(.eyebrow), .safety-section > div:last-child, .final-cta > p:not(.eyebrow) { font-size: 16px; }
  .image-card figure, .product-feature-grid .image-card figure { height: 112vw; max-height: 520px; }
  .image-card h3 { font-size: 26px; }
  .editorial-notes h3 { font-size: 28px; }
  .evidence-collage { display: grid; grid-template-columns: 1fr; grid-template-rows: 280px 330px auto; }
  .evidence-wide, .evidence-tall, .paper-note { grid-column: 1; grid-row: auto; }
  .paper-note { padding: 22px; }
  .app-story { width: calc(100% - 20px); min-height: auto; padding: 48px 22px 28px; }
  .phone-collage { min-height: 420px; }
  .phone-collage figure { width: 178px; }
  .phone-collage figure:first-child { left: 0; }
  .phone-collage figure:last-child { right: 0; }
  .final-cta { padding: 64px 20px; }
  .site-footer { padding-top: 46px; }
  .breadcrumb { margin-top: 10px; }
  .product-gallery { gap: 12px; }
  .product-gallery-tall, .product-gallery-square { min-height: 190px; }
  .product-main-media figcaption { padding: 12px; }
  .product-main-media figcaption span:first-child { display: none; }
  .product-main-media figcaption { justify-content: flex-end; }
  .purchase-panel { padding: 22px; }
  .purchase-panel h1 { font-size: 62px; }
  .field-grid, .purchase-actions { grid-template-columns: 1fr; }
  .interface-screen { min-height: 430px; }
  .interface-screen video { width: 90%; }
  .accordion h3 { font-size: 21px; }
  .checkout-back { width: 48px; padding: 0; font-size: 0; }
  .checkout-back::before { content: "←"; font-size: 22px; }
  .checkout-shell { padding-top: 28px; }
  .checkout-title h1 { font-size: 54px; }
  .checkout-form-panel fieldset { padding: 18px; }
  .order-summary { padding: 22px; }
  .summary-product { grid-template-columns: 100px 1fr; }
  .summary-product figure { width: 100px; height: 100px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}