@font-face {
  font-family: "Nova Display";
  src: local("Segoe UI Variable Display"), local("Segoe UI");
  font-display: swap;
}

:root {
  --bg: #101318;
  --bg-soft: #171b21;
  --paper: #f6f7f9;
  --muted: #b8bec7;
  --dim: #777e88;
  --line: rgba(246, 247, 249, .14);
  --yellow: #f6c900;
  --yellow-soft: rgba(246, 201, 0, .15);
  --ease: cubic-bezier(.22, 1, .36, 1);
  --header-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  color: var(--paper);
  background:
    radial-gradient(circle at 70% 10%, rgba(246, 201, 0, .035), transparent 31rem),
    var(--bg);
  font-family: "Nova Display", "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button, a { font: inherit; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--yellow); outline-offset: 4px; }

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  transform: translateY(-180%);
  background: var(--paper);
  color: var(--bg);
  padding: 10px 15px;
  border-radius: 4px;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 80;
  inset: 0 0 auto 0;
  height: var(--header-h);
  padding: 0 clamp(24px, 4vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(16, 19, 24, .94), rgba(16, 19, 24, 0));
  pointer-events: none;
}
.site-header > * { pointer-events: auto; }
.brand { display: inline-flex; align-items: center; gap: 14px; font-size: 12px; font-weight: 800; letter-spacing: .2em; }
.brand-mark { width: 34px; height: 2px; background: var(--yellow); box-shadow: 12px 0 18px rgba(246, 201, 0, .45); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.text-button, .header-cta {
  border: 0;
  background: transparent;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  cursor: pointer;
}
.text-button { color: var(--muted); }
.header-cta { border: 1px solid var(--line); border-radius: 999px; }
.header-cta:hover { border-color: var(--yellow); color: var(--yellow); }

.page-progress { position: fixed; z-index: 100; top: 0; left: 0; right: 0; height: 2px; background: rgba(255,255,255,.03); }
.page-progress span { display: block; width: 0; height: 100%; background: var(--yellow); box-shadow: 0 0 18px var(--yellow); }

.scene-nav {
  position: fixed;
  z-index: 75;
  right: clamp(14px, 2vw, 30px);
  top: 50%;
  transform: translateY(-50%);
}
.scene-nav::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -28px -22px;
  background: radial-gradient(ellipse at right, rgba(16,19,24,.9), rgba(16,19,24,0) 72%);
  pointer-events: none;
}
.scene-nav ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.scene-nav button {
  position: relative;
  width: 35px;
  height: 35px;
  border: 0;
  background: transparent;
  color: var(--dim);
  cursor: pointer;
  font-size: 9px;
  transition: color .35s var(--ease), transform .35s var(--ease);
}
.scene-nav button::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -4px;
  border: 1px solid currentColor;
  border-radius: 50%;
  transition: .35s var(--ease);
}
.scene-nav button span { opacity: 0; transform: translateX(-5px); display: block; transition: .35s var(--ease); }
.scene-nav button::after {
  content: attr(data-label);
  position: absolute;
  right: 38px;
  top: 50%;
  min-width: 105px;
  padding: 7px 9px;
  transform: translate(8px, -50%);
  color: var(--paper);
  background: rgba(16,19,24,.94);
  border-right: 2px solid var(--yellow);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-align: right;
  text-transform: uppercase;
  opacity: 0;
  visibility: hidden;
  transition: .25s var(--ease);
}
.scene-nav button:hover::after, .scene-nav button:focus-visible::after { opacity: 1; visibility: visible; transform: translate(0, -50%); }
.scene-nav button:hover span, .scene-nav button[aria-current="true"] span { opacity: 1; transform: none; }
.scene-nav button[aria-current="true"] { color: var(--yellow); transform: translateX(-5px); }
.scene-nav button[aria-current="true"]::before { background: var(--yellow); box-shadow: 0 0 0 6px var(--yellow-soft), 0 0 20px rgba(246,201,0,.6); }

main { position: relative; z-index: 2; }
.scene {
  position: relative;
  min-height: 100svh;
  overflow: clip;
  scroll-snap-align: start;
  isolation: isolate;
}
.scene::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 12.5vw 12.5vw;
  mask-image: linear-gradient(to bottom, transparent, black 22%, black 78%, transparent);
  opacity: .33;
}
.scene-grid {
  width: min(100% - clamp(48px, 9vw, 150px), 1520px);
  min-height: 100svh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .95fr);
  align-items: center;
  position: relative;
  z-index: 2;
  padding: calc(var(--header-h) + 28px) 0 64px;
}
.scene-grid-right .scene-copy { grid-column: 2; }
.scene-copy { max-width: 720px; }
.eyebrow {
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 13px;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .18em;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--yellow); }
.eyebrow span { color: var(--yellow); }
h1, h2 { margin: 0; text-transform: uppercase; letter-spacing: -.052em; font-weight: 850; line-height: .94; text-wrap: balance; }
h1 { font-size: clamp(76px, 10.5vw, 184px); }
h2 { font-size: clamp(54px, 6vw, 102px); }
h2 em { color: var(--yellow); font-style: normal; display: inline-block; }
.hero-lead { margin: 22px 0 0; font-size: clamp(28px, 3vw, 48px); font-weight: 660; line-height: 1.05; letter-spacing: -.035em; }
.body-copy { max-width: 610px; margin: 28px 0 0; color: var(--muted); font-size: clamp(16px, 1.25vw, 20px); line-height: 1.65; }

.primary-action, .secondary-action {
  margin-top: 34px;
  min-height: 52px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-weight: 800;
  font-size: 13px;
  cursor: pointer;
  transition: transform .35s var(--ease), background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
}
.primary-action { background: var(--yellow); color: #111; box-shadow: 0 16px 48px rgba(246,201,0,.12); }
.secondary-action { background: transparent; color: var(--paper); border-color: var(--line); }
.primary-action:hover, .secondary-action:hover { transform: translateY(-3px); }
.secondary-action:hover { border-color: var(--yellow); color: var(--yellow); }

.hero-copy { max-width: 760px; }
.hero-aside {
  position: absolute;
  right: -1vw;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  gap: 5px;
  font-size: clamp(52px, 7vw, 118px);
  font-weight: 900;
  letter-spacing: -.07em;
  line-height: .72;
  color: rgba(255,255,255,.025);
  writing-mode: vertical-rl;
}
.scroll-cue { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); color: var(--dim); font-size: 9px; letter-spacing: .18em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.scroll-cue span { width: 42px; height: 1px; background: var(--line); overflow: hidden; position: relative; }
.scroll-cue span::after { content: ""; position: absolute; inset: 0; background: var(--yellow); transform: translateX(-100%); animation: cue 2.1s infinite; }
@keyframes cue { 50%,100% { transform: translateX(100%); } }

.product-stage {
  position: fixed;
  z-index: 5;
  left: 0;
  top: 8%;
  width: 46vw;
  height: 84vh;
  pointer-events: none;
  transform: translate3d(117%, 0, 0);
  transition: transform .85s var(--ease), opacity .5s ease;
  perspective: 1400px;
  will-change: transform;
}
.product-halo { position: absolute; left: 50%; top: 50%; width: 80%; aspect-ratio: 1; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(246,201,0,.14), rgba(246,201,0,.025) 36%, transparent 66%); filter: blur(22px); opacity: .8; transition: .8s var(--ease); }
.product-image {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 40px 42px rgba(0,0,0,.58));
  transform: translate3d(0,0,0) rotate(0deg) scale(1);
  transition: transform 1s var(--ease), opacity .32s ease, filter .8s ease;
  will-change: transform, opacity;
}
.product-image.is-switching { opacity: 0; transform: scale(.97); }
.product-shadow { position: absolute; z-index: 1; left: 20%; right: 20%; bottom: 4%; height: 8%; border-radius: 50%; background: rgba(0,0,0,.72); filter: blur(22px); transition: .8s var(--ease); }
.product-orbit { position: absolute; z-index: 0; left: 50%; top: 50%; border: 1px solid rgba(246,201,0,.1); border-radius: 50%; transform: translate(-50%, -50%) rotate(-15deg); transition: .8s var(--ease); }
.orbit-a { width: 85%; aspect-ratio: 1; }
.orbit-b { width: 62%; aspect-ratio: 1; border-color: rgba(255,255,255,.07); }

body[data-scene="1"] .product-image { transform: scale(1.42); }

body[data-scene="1"] .product-stage { transform: translate3d(117%, 0, 0); }
body[data-scene="2"] .product-stage { transform: translate3d(7%, 0, 0); }
body[data-scene="2"] .product-image { transform: scale(1.05); }
body[data-scene="2"] .product-map { transform: scale(1.05); }
body[data-scene="3"] .product-stage { transform: translate3d(113%, 0, 0); }
body[data-scene="3"] .product-image { transform: scale(1.06); }
body[data-scene="3"] .product-map { transform: scale(1.06); }
body[data-scene="4"] .product-stage { transform: translate3d(5%, 0, 0); }
body[data-scene="4"] .product-image { transform: scale(1.18); }
body[data-scene="5"] .product-stage { transform: translate3d(123%, 0, 0); }
body[data-scene="5"] .product-image { transform: scale(1.42); }
body[data-scene="6"] .product-stage { transform: translate3d(111%, 0, 0); }
body[data-scene="6"] .product-image { transform: scale(1.1); }
body[data-scene="7"] .product-stage { transform: translate3d(119%, 0, 0); }
body[data-scene="7"] .product-image { transform: scale(1.2); filter: drop-shadow(0 45px 55px rgba(0,0,0,.62)) drop-shadow(0 0 50px rgba(246,201,0,.08)); }

.mobile-product { display: none; }

.hardware-hotspots { display: none; }
body[data-scene="2"] .hardware-hotspots { display: block; }
.product-map, .spec-measure { position: absolute; z-index: 6; inset: 0; width: 100%; height: 100%; overflow: visible; transition: transform 1s var(--ease), opacity .35s ease; }
.map-line { fill: none; stroke: var(--yellow); stroke-width: 1.4; stroke-linecap: square; stroke-linejoin: round; filter: drop-shadow(0 0 6px rgba(246,201,0,.42)); stroke-dasharray: 420; stroke-dashoffset: 0; transition: d .5s var(--ease); }
.map-dot { fill: var(--yellow); filter: drop-shadow(0 0 7px var(--yellow)); transition: cx .5s var(--ease), cy .5s var(--ease); }
.map-pulse { fill: none; stroke: var(--yellow); stroke-width: 1; transform-box: fill-box; transform-origin: center; animation: mapPulse 1.9s infinite; transition: cx .5s var(--ease), cy .5s var(--ease); }
@keyframes mapPulse { 0% { transform: scale(.45); opacity: 0; } 28% { opacity: .9; } 100% { transform: scale(1.7); opacity: 0; } }
.hotspot-label {
  position: absolute;
  z-index: 6;
  left: 64%;
  top: 49%;
  width: 205px;
  padding: 14px 16px;
  background: rgba(16,19,24,.9);
  border-left: 2px solid var(--yellow);
  box-shadow: 0 14px 45px rgba(0,0,0,.3);
  display: grid;
  gap: 3px;
  transition: top .4s var(--ease), opacity .2s ease;
}
.hotspot-label::before { content: none; }
.hotspot-label strong { font-size: 17px; }
.hotspot-label small { color: var(--muted); font-size: 11px; }
.hotspot-kicker { color: var(--yellow); font-size: 8px; letter-spacing: .14em; }

.payment-hotspots { display: none; }
body[data-scene="3"] .payment-hotspots { display: block; }
.payment-map-label {
  position: absolute;
  z-index: 7;
  left: 67%;
  top: 43%;
  width: 175px;
  padding: 12px 14px;
  border-left: 2px solid var(--yellow);
  background: rgba(16,19,24,.91);
  box-shadow: 0 16px 40px rgba(0,0,0,.34);
  display: grid;
  gap: 4px;
  transition: top .45s var(--ease), opacity .2s ease;
}
.payment-map-label span { color: var(--yellow); font-size: 8px; font-weight: 800; letter-spacing: .14em; }
.payment-map-label strong { font-size: 13px; }

.concept-screen-proxy {
  position: absolute;
  z-index: 5;
  left: 30.4%;
  top: 39%;
  width: 37.3%;
  height: 36%;
  padding: 8px;
  background: linear-gradient(145deg, #151a20, #0c0f13);
  border: 1px solid rgba(246,201,0,.35);
  box-shadow: inset 0 0 25px rgba(246,201,0,.04);
  opacity: 0;
  visibility: hidden;
  transform: scale(.97);
  transition: opacity .45s ease, transform .55s var(--ease), visibility .45s;
}
body[data-scene="5"] .concept-screen-proxy { opacity: 1; visibility: visible; transform: scale(1); }
.concept-screen-bar { display: flex; justify-content: space-between; color: var(--dim); font-size: 5px; letter-spacing: .08em; }
.concept-screen-bar b { color: var(--yellow); }
.concept-screen-grid { margin-top: 7px; height: calc(100% - 32px); display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.concept-screen-grid i { position: relative; border: 1px solid rgba(246,247,249,.12); background: rgba(255,255,255,.025); }
.concept-screen-grid i::after { content: ""; position: absolute; left: 25%; right: 25%; top: 30%; bottom: 30%; border: 1px solid rgba(246,201,0,.58); }
.concept-screen-proxy small { display: block; margin-top: 4px; color: var(--muted); font-size: 5px; text-align: center; }

.spec-measure { display: none; fill: none; stroke: var(--yellow); stroke-width: 1; overflow: visible; }
body[data-scene="6"] .spec-measure { display: block; transform: scale(1.1); }
.spec-measure text { fill: var(--muted); stroke: none; font-size: 11px; font-weight: 700; letter-spacing: .12em; }

.scene-hardware, .scene-connect, .scene-specs { background: linear-gradient(110deg, rgba(255,255,255,.018), transparent 46%); }
.feature-tabs { margin-top: 38px; border-top: 1px solid var(--line); }
.feature-tab {
  width: 100%;
  min-height: 76px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  display: grid;
  grid-template-columns: 38px 1fr;
  grid-template-rows: auto auto;
  align-content: center;
  text-align: left;
  cursor: pointer;
  transition: background .3s ease, padding .3s var(--ease);
}
.feature-tab > span { grid-row: 1 / 3; color: var(--dim); font-size: 10px; padding-top: 4px; }
.feature-tab strong { font-size: 15px; }
.feature-tab small { color: var(--dim); margin-top: 4px; }
.feature-tab.is-active { padding-left: 15px; background: linear-gradient(90deg, var(--yellow-soft), transparent); }
.feature-tab.is-active > span, .feature-tab.is-active strong { color: var(--yellow); }

.scene-payments::after, .scene-software::after {
  content: "";
  position: absolute;
  inset: 12% 4% 12% 4%;
  z-index: -1;
  border: 1px solid rgba(246,201,0,.055);
  transform: skewX(-8deg);
}
.payment-copy { max-width: 680px; }
.payment-constellation { margin-top: 42px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; max-width: 560px; }
.pay-node {
  position: relative;
  min-height: 112px;
  padding: 18px 16px 17px 76px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.018);
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  color: var(--paper);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color .35s ease, transform .35s var(--ease);
}
.pay-node:hover { transform: translateY(-4px); border-color: rgba(246,201,0,.55); }
.pay-node.is-active { border-color: rgba(246,201,0,.72); background: linear-gradient(110deg, rgba(246,201,0,.12), rgba(255,255,255,.018) 56%); }
.pay-node::after { content: ""; position: absolute; right: -18px; bottom: -24px; width: 80px; height: 80px; border: 1px solid rgba(246,201,0,.1); border-radius: 50%; }
.pay-node strong { font-size: 14px; }
.pay-node small { color: var(--dim); margin-top: 5px; font-size: 11px; }
.pay-icon { position: absolute; left: 18px; top: 50%; width: 42px; height: 42px; transform: translateY(-50%); border: 1px solid rgba(246,201,0,.28); background: rgba(246,201,0,.035); display: grid; place-items: center; color: var(--yellow); }
.pay-icon svg, .metric-icon svg, .concept-grid i svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.55; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }

.signal-field { position: absolute; left: 5vw; top: 50%; width: 44vw; aspect-ratio: 1; transform: translateY(-50%); z-index: 0; }
.signal-field i { position: absolute; inset: 25%; border: 1px solid rgba(246,201,0,.14); border-radius: 50%; animation: signal 4s infinite var(--ease); }
.signal-field i:nth-child(2) { animation-delay: -1.3s; }
.signal-field i:nth-child(3) { animation-delay: -2.6s; }
@keyframes signal { 0% { transform: scale(.45); opacity: 0; } 35% { opacity: .8; } 100% { transform: scale(2); opacity: 0; } }
.connect-metrics { margin-top: 45px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.connect-metrics article { min-height: 155px; padding: 24px 18px; border-right: 1px solid var(--line); display: flex; flex-direction: column; justify-content: flex-end; }
.connect-metrics article:last-child { border-right: 0; }
.connect-metrics p { color: var(--dim); font-size: 10px; text-transform: uppercase; letter-spacing: .11em; margin: auto 0 8px; }
.connect-metrics strong { font-size: 20px; }
.metric-icon { width: 38px; height: 38px; display: grid; place-items: center; color: var(--yellow); border-bottom: 1px solid rgba(246,201,0,.35); }
.metric-icon svg { width: 26px; height: 26px; }

.software-copy { max-width: 760px; }
.concept-window { margin-top: 36px; border: 1px solid var(--line); background: rgba(10,12,15,.7); backdrop-filter: blur(12px); box-shadow: 0 25px 80px rgba(0,0,0,.22); }
.concept-top { min-height: 43px; padding: 0 15px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; font-size: 9px; letter-spacing: .13em; color: var(--dim); }
.concept-top b { color: var(--yellow); border: 1px solid rgba(246,201,0,.35); padding: 5px 8px; }
.concept-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.concept-grid article { min-height: 112px; padding: 19px 18px 17px 59px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); position: relative; display: grid; align-content: center; gap: 5px; }
.concept-grid article:nth-child(even) { border-right: 0; }
.concept-grid article:nth-child(n+3) { border-bottom: 0; }
.concept-grid strong { font-size: 13px; }
.concept-grid small { color: var(--dim); font-size: 10px; }
.concept-grid i { position: absolute; left: 18px; top: 22px; width: 28px; height: 28px; color: var(--yellow); display: grid; place-items: center; opacity: .9; font-style: normal; }
.concept-grid i svg { width: 26px; height: 26px; }

.specs-copy { max-width: 710px; }
.spec-hero-grid { margin-top: 45px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spec-hero-grid article { min-height: 145px; padding: 19px 17px; border-right: 1px solid var(--line); display: flex; flex-direction: column; justify-content: center; }
.spec-hero-grid article:last-child { border-right: 0; }
.spec-hero-grid small { color: var(--dim); text-transform: uppercase; letter-spacing: .12em; font-size: 9px; }
.spec-hero-grid strong { margin-top: 10px; font-size: clamp(26px, 2.5vw, 40px); color: var(--yellow); }
.spec-hero-grid span { margin-top: 4px; color: var(--muted); font-size: 11px; }
.scene-final::after { content: "NOVA 55F"; position: absolute; left: 0; right: 0; bottom: -3vw; z-index: -1; text-align: center; font-size: 18vw; font-weight: 900; letter-spacing: -.08em; color: rgba(255,255,255,.018); white-space: nowrap; }
.final-copy { max-width: 780px; }
.final-glow { position: absolute; right: 5%; top: 10%; width: 45vw; height: 80vh; background: radial-gradient(ellipse, rgba(246,201,0,.11), transparent 65%); filter: blur(30px); }
.final-actions { display: flex; align-items: center; gap: 12px; }
.site-link { display: inline-flex; margin-top: 28px; color: var(--dim); font-size: 12px; border-bottom: 1px solid var(--line); padding-bottom: 4px; }

.drawer-backdrop { position: fixed; z-index: 110; inset: 0; background: rgba(4,6,8,.7); backdrop-filter: blur(6px); }
.spec-drawer {
  position: fixed;
  z-index: 120;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(520px, 92vw);
  background: #161a20;
  border-left: 1px solid var(--line);
  box-shadow: -40px 0 100px rgba(0,0,0,.45);
  transform: translateX(105%);
  visibility: hidden;
  transition: transform .55s var(--ease), visibility .55s;
  overflow-y: auto;
}
.spec-drawer.is-open { transform: translateX(0); visibility: visible; }
.drawer-head { min-height: 150px; padding: 40px; display: flex; align-items: flex-start; justify-content: space-between; border-bottom: 1px solid var(--line); }
.drawer-head p { margin: 0 0 10px; color: var(--yellow); text-transform: uppercase; letter-spacing: .17em; font-size: 10px; }
.drawer-head h2 { font-size: 37px; line-height: 1; }
.drawer-close { width: 42px; height: 42px; border: 1px solid var(--line); background: transparent; font-size: 25px; cursor: pointer; }
.drawer-close:hover { border-color: var(--yellow); color: var(--yellow); }
.drawer-body { padding: 8px 40px 50px; }
.drawer-body dl { margin: 0; }
.drawer-body dl > div { padding: 22px 0; display: grid; grid-template-columns: 42% 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.drawer-body dt { color: var(--dim); text-transform: uppercase; letter-spacing: .1em; font-size: 9px; }
.drawer-body dd { margin: 0; font-size: 14px; font-weight: 700; }
.drawer-note { color: var(--dim); font-size: 11px; line-height: 1.6; margin: 24px 0 0; }
body.drawer-open { overflow: hidden; }
.noscript { position: fixed; z-index: 200; left: 20px; right: 20px; bottom: 20px; padding: 15px; background: #fff; color: #111; }

@media (min-width: 901px) {
  html { scroll-snap-type: y proximity; }
  .scene-copy { opacity: .38; transform: translateY(28px); transition: opacity .8s ease, transform .8s var(--ease); }
  .scene.is-active .scene-copy { opacity: 1; transform: none; }
  .scene .eyebrow, .scene h1, .scene h2, .scene .body-copy, .scene .hero-lead, .scene .feature-tabs, .scene .payment-constellation, .scene .connect-metrics, .scene .concept-window, .scene .spec-hero-grid, .scene .primary-action, .scene .secondary-action {
    transition: opacity .75s ease, transform .75s var(--ease);
  }
  .scene:not(.is-active) .eyebrow, .scene:not(.is-active) h1, .scene:not(.is-active) h2, .scene:not(.is-active) .body-copy, .scene:not(.is-active) .hero-lead, .scene:not(.is-active) .feature-tabs, .scene:not(.is-active) .payment-constellation, .scene:not(.is-active) .connect-metrics, .scene:not(.is-active) .concept-window, .scene:not(.is-active) .spec-hero-grid, .scene:not(.is-active) .primary-action, .scene:not(.is-active) .secondary-action {
    opacity: 0;
    transform: translateY(20px);
  }
  .scene.is-active .eyebrow { transition-delay: .08s; }
  .scene.is-active h1, .scene.is-active h2 { transition-delay: .14s; }
  .scene.is-active .hero-lead, .scene.is-active .body-copy { transition-delay: .2s; }
  .scene.is-active .feature-tabs, .scene.is-active .payment-constellation, .scene.is-active .connect-metrics, .scene.is-active .concept-window, .scene.is-active .spec-hero-grid { transition-delay: .27s; }
}

@media (max-width: 1120px) {
  .scene-grid { grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr); }
  h2 { font-size: clamp(48px, 5.5vw, 76px); }
  .product-stage { left: 56%; width: 40vw; }
  .concept-window { max-width: 650px; }
  .payment-constellation { max-width: 500px; }
}

@media (min-width: 901px) and (max-height: 790px) {
  .scene-grid { padding-top: calc(var(--header-h) + 10px); padding-bottom: 34px; }
  h1 { font-size: clamp(68px, 9vw, 132px); }
  h2 { font-size: clamp(44px, 5vw, 72px); }
  .eyebrow { margin-bottom: 14px; }
  .body-copy { margin-top: 18px; font-size: 15px; line-height: 1.5; }
  .feature-tabs, .payment-constellation, .connect-metrics, .concept-window, .spec-hero-grid { margin-top: 22px; }
  .feature-tab { min-height: 62px; }
  .concept-grid article { min-height: 86px; }
  .pay-node { min-height: 94px; }
  .primary-action, .secondary-action { margin-top: 22px; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  html { scroll-snap-type: none; }
  .site-header { padding: 0 20px; background: linear-gradient(180deg, rgba(16,19,24,.98) 0%, rgba(16,19,24,.88) 72%, transparent 100%); }
  .header-actions .text-button { display: none; }
  .scene-nav, .product-stage { display: none; }
  .scene { min-height: auto; overflow: hidden; }
  .scene + .scene { border-top: 1px solid rgba(246,247,249,.08); }
  .scene::before { background-size: 33vw 33vw; }
  .scene-grid, .scene-grid-right {
    width: min(100% - 40px, 700px);
    min-height: auto;
    padding: 104px 0 84px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }
  .scene-grid-right .scene-copy { grid-column: auto; }
  .mobile-product { display: block; width: min(100%, 520px); height: min(48vh, 460px); min-height: 320px; margin: 28px auto 8px; object-fit: contain; filter: drop-shadow(0 28px 34px rgba(0,0,0,.48)); transform: scale(1.06); transform-origin: center; }
  .scene-copy { width: 100%; min-width: 0; max-width: none; }
  .hero-aside, .spec-measure, .concept-screen-proxy, .payment-hotspots { display: none !important; }
  h1 { font-size: clamp(66px, 20vw, 116px); line-height: .9; }
  h2 { font-size: clamp(44px, 10.5vw, 70px); line-height: .97; letter-spacing: -.045em; }
  h2 br { display: none; }
  h2 em { display: block; margin-top: .08em; }
  .hero-lead { font-size: clamp(27px, 7vw, 43px); }
  .body-copy { width: 100%; max-width: 36rem; font-size: 16px; line-height: 1.62; text-wrap: pretty; overflow-wrap: anywhere; }
  .feature-tabs { margin-top: 24px; }
  .payment-constellation, .concept-window { max-width: none; }
  .signal-field { width: 100vw; left: -25vw; top: 65%; }
  .final-actions { flex-wrap: wrap; }
  .scroll-cue { display: none; }
  .primary-action, .secondary-action { min-height: 50px; }

  /* Mobile keeps the content readable as a document, but still reveals each
     chapter as it reaches the viewport.  This mirrors the desktop cadence
     without pinning or scroll-snapping a small touch screen. */
  .scene .eyebrow,
  .scene h1,
  .scene h2,
  .scene .hero-lead,
  .scene .body-copy,
  .scene .mobile-product,
  .scene .feature-tabs,
  .scene .payment-constellation,
  .scene .connect-metrics,
  .scene .concept-window,
  .scene .spec-hero-grid,
  .scene .primary-action,
  .scene .secondary-action,
  .scene .site-link {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .58s ease, transform .72s var(--ease);
    will-change: transform, opacity;
  }
  .scene .mobile-product { transform: translateY(28px) scale(.96); }
  .scene.is-active .eyebrow,
  .scene.is-active h1,
  .scene.is-active h2,
  .scene.is-active .hero-lead,
  .scene.is-active .body-copy,
  .scene.is-active .mobile-product,
  .scene.is-active .feature-tabs,
  .scene.is-active .payment-constellation,
  .scene.is-active .connect-metrics,
  .scene.is-active .concept-window,
  .scene.is-active .spec-hero-grid,
  .scene.is-active .primary-action,
  .scene.is-active .secondary-action,
  .scene.is-active .site-link {
    opacity: 1;
    transform: none;
  }
  .scene.is-active .mobile-product.is-switching {
    opacity: 0;
    transform: translateY(8px) scale(.97);
  }
  .scene.is-active h1, .scene.is-active h2 { transition-delay: .07s; }
  .scene.is-active .hero-lead, .scene.is-active .body-copy { transition-delay: .13s; }
  .scene.is-active .mobile-product { transition-delay: .2s; }
  .scene.is-active .feature-tabs,
  .scene.is-active .payment-constellation,
  .scene.is-active .connect-metrics,
  .scene.is-active .concept-window,
  .scene.is-active .spec-hero-grid { transition-delay: .28s; }
  .scene.is-active .primary-action,
  .scene.is-active .secondary-action,
  .scene.is-active .site-link { transition-delay: .36s; }
}

@media (max-width: 560px) {
  .brand { font-size: 10px; }
  .brand-mark { width: 24px; }
  .header-cta { padding: 9px 12px; }
  .scene-grid { width: min(100% - 32px, 520px); padding-top: 92px; padding-bottom: 68px; }
  h1 { max-width: 100%; font-size: clamp(58px, 16.5vw, 82px); letter-spacing: -.06em; white-space: nowrap; }
  h2 { font-size: clamp(40px, 10.8vw, 56px); }
  .eyebrow { gap: 9px; font-size: 9px; line-height: 1.45; margin-bottom: 15px; letter-spacing: .13em; }
  .eyebrow::before { width: 20px; flex: 0 0 20px; }
  .hero-lead { margin-top: 16px; }
  .body-copy { margin-top: 20px; line-height: 1.55; }
  .mobile-product { width: 100%; height: min(42vh, 390px); min-height: 270px; margin-top: 18px; }
  .feature-tab { min-height: 70px; grid-template-columns: 32px 1fr; padding-right: 8px; }
  .feature-tab strong { font-size: 14px; }
  .feature-tab small { font-size: 11px; }
  .payment-constellation { margin-top: 24px; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .pay-node { min-height: 126px; padding: 58px 12px 14px; justify-content: flex-start; }
  .pay-icon { left: 12px; top: 13px; width: 35px; height: 35px; transform: none; }
  .pay-icon svg { width: 20px; height: 20px; }
  .pay-node strong { font-size: 13px; line-height: 1.25; }
  .pay-node small { font-size: 10px; line-height: 1.4; }
  .connect-metrics, .spec-hero-grid { margin-top: 24px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .connect-metrics article, .spec-hero-grid article { min-height: 118px; padding: 16px; border-bottom: 1px solid var(--line); }
  .connect-metrics article:nth-child(2), .spec-hero-grid article:nth-child(2) { border-right: 0; }
  .connect-metrics article:last-child, .spec-hero-grid article:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .connect-metrics p { margin: 18px 0 6px; line-height: 1.35; }
  .connect-metrics strong { font-size: 18px; }
  .concept-window { margin-top: 24px; }
  .concept-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .concept-grid article { min-height: 142px; padding: 58px 14px 16px; border-bottom: 1px solid var(--line) !important; }
  .concept-grid article:nth-child(odd) { border-right: 1px solid var(--line); }
  .concept-grid article:nth-child(even) { border-right: 0; }
  .concept-grid article:nth-child(n+3) { border-bottom: 0 !important; }
  .concept-grid i { left: 14px; top: 17px; }
  .concept-grid strong { font-size: 12px; line-height: 1.3; }
  .concept-grid small { font-size: 9px; line-height: 1.45; }
  .spec-hero-grid strong { font-size: 27px; }
  .final-actions { align-items: stretch; flex-direction: column; }
  .final-actions > * { width: 100%; }
  .final-actions .primary-action, .final-actions .secondary-action { margin-top: 10px; }
  .drawer-head, .drawer-body { padding-left: 24px; padding-right: 24px; }
  .drawer-head h2 { font-size: 30px; }
  .drawer-body dl > div { grid-template-columns: 1fr; gap: 7px; }
}

@media (max-width: 380px) {
  .site-header { padding-inline: 14px; }
  .brand { letter-spacing: .14em; }
  .scene-grid { width: calc(100% - 28px); }
  h1 { font-size: 16vw; }
  h2 { font-size: 10.5vw; }
  .body-copy { font-size: 15px; }
  .payment-constellation { grid-template-columns: 1fr; }
  .pay-node { min-height: 86px; padding: 17px 12px 15px 63px; justify-content: center; }
  .pay-icon { left: 12px; top: 50%; transform: translateY(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .product-image { transform: none !important; }
}