:root {
  color-scheme: dark;
  --ink: #e9e6de;
  --muted: #9a958c;
  --line: rgba(233, 230, 222, 0.12);
  --line-strong: rgba(233, 230, 222, 0.22);
  --bg: #0a1220;
  --bg-2: #0d1626;
  --panel: #101a2b;
  --gold: #c4a46a;
  --gold-2: #ddc089;
  --good: #6fbe96;
  --display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Source Sans 3", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; min-height: 100%; }
body {
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--gold-2); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 1px solid var(--gold); outline-offset: 3px; }
strong { font-weight: 600; color: var(--ink); }

.page-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(50% 40% at 85% 0%, rgba(196, 164, 106, 0.07), transparent 55%),
    linear-gradient(180deg, #08101c 0%, #0a1220 40%, #0c1524 100%);
}

.top, main, footer { position: relative; z-index: 1; }
.wrap { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }

/* —— Header —— */
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.mark {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}
.mark span { color: var(--gold); }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a {
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.nav a:hover { color: var(--ink); text-decoration: none; }
.nav-desk {
  border: 1px solid var(--line-strong);
  padding: 0.45rem 0.85rem;
  color: var(--ink) !important;
}
.menu {
  display: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  padding: 0.45rem 0.85rem;
}

/* —— Hero —— */
.hero {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 48px;
  align-items: center;
  padding: 56px 0 48px;
  min-height: min(78vh, 720px);
}
.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--gold);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0 0 0.65rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.75rem, 5.5vw, 4.25rem);
  letter-spacing: -0.02em;
  line-height: 1.02;
  color: var(--ink);
}
.headline {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.3;
  color: var(--gold-2);
  max-width: 22ch;
}
.lede, .section-lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
  max-width: 40ch;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.8rem 1.15rem;
  border: 0;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s, border-color 0.2s, transform 0.2s var(--ease);
}
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--gold); color: #12100a; }
.btn.primary:hover { background: var(--gold-2); transform: translateY(-1px); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn.wide { width: 100%; }

/* —— Specs bar —— */
.specs {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(13, 22, 38, 0.65);
}
.spec-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}
.spec-row > div {
  padding: 1.35rem 1.1rem 1.35rem 0;
  border-right: 1px solid var(--line);
}
.spec-row > div:last-child { border-right: 0; padding-right: 0; }
.spec-row .k {
  margin: 0 0 0.35rem;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.spec-row .v {
  margin: 0;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
}

/* —— Metal cards —— */
.scene {
  position: relative;
  min-height: 420px;
  perspective: 1600px;
  display: grid;
  place-items: center;
  touch-action: none;
  cursor: grab;
}
.scene:active { cursor: grabbing; }
.deck {
  position: relative;
  width: min(400px, 92%);
  height: 300px;
  transform-style: preserve-3d;
  transform: rotateX(12deg) rotateY(-18deg);
  will-change: transform;
}
.metal {
  --rx: 0deg;
  --ry: 0deg;
  position: absolute;
  width: 100%;
  aspect-ratio: 1.586 / 1;
  border-radius: 14px;
  color: #f4efe6;
  transform-style: preserve-3d;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.22);
  cursor: pointer;
  user-select: none;
}
.metal.visa {
  top: 0; left: 0; z-index: 2;
  transform: translate3d(-28px, -32px, 16px) rotateZ(-8deg) rotateX(var(--rx)) rotateY(var(--ry));
}
.metal.master {
  top: 28px; left: 24px; z-index: 3;
  transform: translate3d(0, 6px, 60px) rotateZ(2deg) rotateX(var(--rx)) rotateY(var(--ry));
}
.metal.amex {
  top: 56px; left: 48px; z-index: 4;
  transform: translate3d(28px, 42px, 104px) rotateZ(9deg) rotateX(var(--rx)) rotateY(var(--ry));
}
.metal.flipped { z-index: 6; }
.metal.flipped .face.front { transform: rotateY(180deg); }
.metal.flipped .face.back { transform: rotateY(0deg); }

.face {
  position: absolute; inset: 0; border-radius: 14px; padding: 1.15rem 1.25rem;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  overflow: hidden;
  transition: transform 0.5s var(--ease);
}
.face.front { transform: rotateY(0deg); }
.face.back {
  transform: rotateY(180deg);
  display: grid; align-content: end; gap: 0.65rem;
}

.brush {
  position: absolute; inset: 0; border-radius: 14px; pointer-events: none; opacity: 0.45;
  background: repeating-linear-gradient(98deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 3px);
  mix-blend-mode: soft-light;
}
.sheen {
  position: absolute; inset: 0; border-radius: 14px; pointer-events: none;
  background: linear-gradient(118deg, transparent calc(var(--gx, 35%) - 16%), rgba(255,255,255,0.35) var(--gx, 35%), transparent calc(var(--gx, 35%) + 16%));
  mix-blend-mode: soft-light;
}
.edge {
  position: absolute; inset: 0; border-radius: 14px; pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.18), inset 0 0 0 2px rgba(0,0,0,0.18);
}

.metal.visa .face.front {
  background:
    linear-gradient(145deg, rgba(255,255,255,0.26), transparent 38%),
    linear-gradient(155deg, #8fa4c4 0%, #3d5578 32%, #1a2d4d 68%, #0d1a30 100%);
}
.metal.visa .face.back { background: linear-gradient(160deg, #2a3d5c, #121c2e); }
.metal.master .face.front {
  background:
    linear-gradient(145deg, rgba(255,255,255,0.18), transparent 40%),
    linear-gradient(165deg, #3a3a3a 0%, #171717 45%, #0a0a0a 100%);
}
.metal.master .face.back { background: linear-gradient(160deg, #222, #0d0d0d); }
.metal.amex .face.front {
  background:
    linear-gradient(145deg, rgba(255,255,255,0.32), transparent 34%),
    linear-gradient(165deg, #dcc9a0 0%, #b08f4f 34%, #6e5530 66%, #3d2f18 100%);
  color: #1a140a;
}
.metal.amex .face.back { background: linear-gradient(160deg, #8a7348, #3d2f18); color: #f4efe6; }
.metal.amex .name,
.metal.amex .product,
.metal.amex .pan,
.metal.amex .emboss { color: #1a140a; text-shadow: 0 1px 0 rgba(255,255,255,0.25); }
.metal.amex small { color: rgba(26, 20, 10, 0.58); }

.row { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: flex-end; gap: 0.75rem; }
.row.top { align-items: flex-start; }
.name {
  font-family: var(--display);
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 700;
}
.contactless {
  width: 20px; height: 20px;
  background:
    radial-gradient(circle at 30% 50%, transparent 55%, currentColor 56% 62%, transparent 63%),
    radial-gradient(circle at 30% 50%, transparent 70%, currentColor 71% 77%, transparent 78%),
    radial-gradient(circle at 30% 50%, transparent 85%, currentColor 86% 92%, transparent 93%);
  color: rgba(244, 239, 230, 0.85);
  transform: rotate(90deg);
}
.logo-amex {
  font-size: 0.5rem; font-weight: 800; letter-spacing: 0.06em; line-height: 1.15;
  text-align: center; color: #fff; background: #006fcf;
  padding: 0.4rem 0.5rem; text-transform: uppercase;
}
.chip {
  position: relative; z-index: 1;
  width: 46px; height: 36px; margin: 1.1rem 0 0.7rem; border-radius: 5px;
  background: linear-gradient(135deg, #f3e2b8, #c4984a 42%, #f0dfb0 54%, #8a642c);
  box-shadow: inset 0 0 0 1px rgba(80, 50, 10, 0.4), 0 2px 6px rgba(0,0,0,0.35);
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px; padding: 5px;
}
.chip span {
  display: block;
  background: linear-gradient(90deg, rgba(80,50,10,0.35), rgba(255,230,180,0.25), rgba(80,50,10,0.35));
}
.product {
  position: relative; z-index: 1;
  margin: 0 0 0.45rem;
  font-size: 0.5625rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(244, 239, 230, 0.68); font-weight: 600;
}
.metal.amex .product { color: rgba(26, 20, 10, 0.65); }
.pan {
  position: relative; z-index: 1;
  font-size: 1.05rem; letter-spacing: 0.12em; margin: 0 0 0.9rem;
  font-family: var(--mono); font-weight: 500;
}
.amex-pan { letter-spacing: 0.1em; font-size: 1rem; }
.emboss {
  text-shadow: 0 1px 0 rgba(255,255,255,0.25), 0 -1px 0 rgba(0,0,0,0.4);
}
.metal small {
  display: block; font-size: 0.5rem; letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 0.15rem; color: rgba(244, 239, 230, 0.58);
}
.metal strong { font-weight: 650; font-size: 0.72rem; letter-spacing: 0.02em; }
.logo-visa {
  font-family: var(--display); font-style: italic; font-weight: 700;
  font-size: 1.55rem; line-height: 1; color: #fff; align-self: flex-end;
}
.logo-mc { position: relative; width: 46px; height: 28px; display: block; flex-shrink: 0; }
.logo-mc i { position: absolute; top: 0; width: 28px; height: 28px; border-radius: 50%; }
.logo-mc i:first-child { left: 0; background: #eb001b; }
.logo-mc i:last-child { right: 0; background: #f79e1b; mix-blend-mode: screen; }
.mag {
  position: absolute; top: 1.5rem; left: 0; right: 0; height: 2.5rem;
  background: linear-gradient(90deg, #111, #555 35%, #222 60%, #666 80%, #111);
}
.sig-strip {
  position: relative; z-index: 1; margin-top: 4.5rem;
  background: repeating-linear-gradient(-45deg, #d8d0c4, #d8d0c4 6px, #eee8dc 6px 12px);
  color: #666; font-size: 0.5625rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.55rem 0.7rem; width: 70%;
}
.cvv-block {
  position: relative; z-index: 1;
  background: #f2f2f2; color: #111;
  padding: 0.45rem 0.7rem; width: fit-content;
  display: flex; gap: 0.75rem; align-items: center; font-size: 0.75rem;
}
.cvv-block b { font-family: var(--mono); letter-spacing: 0.16em; }
.face.back .sig {
  position: relative; z-index: 1;
  margin: 0; font-family: var(--display); font-size: 0.875rem; color: var(--gold-2);
}
.hint {
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  margin: 0; color: var(--muted); font-size: 0.75rem; letter-spacing: 0.04em; white-space: nowrap;
}

/* —— Status keys —— */
.status { padding: 4.5rem 0; border-bottom: 1px solid var(--line); }
.status h2, .upgrade h2, .architecture h2, .settle h2, .demo h2, .band h2, .pay h2 {
  margin: 0 0 0.85rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 24ch;
}
.key-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.key-list li {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}
.key-list .badge {
  width: 1.75rem; height: 1.75rem;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 0.8rem; font-weight: 700;
  margin-top: 0.1rem;
}
.key-list .done .badge {
  background: rgba(111, 190, 150, 0.15);
  color: var(--good);
  border: 1px solid rgba(111, 190, 150, 0.45);
}
.key-list .waiting .badge {
  background: rgba(196, 164, 106, 0.1);
  color: var(--gold);
  border: 1px solid rgba(196, 164, 106, 0.4);
  font-size: 0.95rem; letter-spacing: 0.05em;
}
.key-list .badge.pulse {
  animation: wait-pulse 1.6s ease-in-out infinite;
}
.key-list strong {
  display: block; margin-bottom: 0.25rem;
  font-size: 1rem; font-weight: 600;
}
.key-list p {
  margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.5; max-width: 52ch;
}
.key-list .state {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding-top: 0.35rem;
  white-space: nowrap;
}
.key-list .done .state { color: var(--good); }
.key-list .waiting .state { color: var(--gold); }

.upgrade { padding: 4.5rem 0; border-bottom: 1px solid var(--line); }
.architecture {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(50% 60% at 80% 0%, rgba(196, 164, 106, 0.08), transparent 55%),
    linear-gradient(180deg, rgba(10, 16, 28, 0.55), transparent 40%);
}
.arch-figure {
  margin: 1.75rem 0 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
  box-shadow: var(--shadow);
}
.arch-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(196, 164, 106, 0.18);
}
.arch-figure figcaption {
  margin: 0.85rem 0.25rem 0.15rem;
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  line-height: 1.45;
}
.upgrade-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 2.5rem;
  align-items: start;
}
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.compare article {
  background: var(--panel);
  padding: 1.35rem 1.25rem;
}
.compare .compare-label {
  margin: 0 0 0.4rem;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.compare h3 {
  margin: 0 0 0.85rem;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
}
.compare ul {
  margin: 0; padding-left: 1.05rem;
  color: var(--muted); font-size: 0.9rem; line-height: 1.6;
}
.compare .target {
  background: #121c30;
}
.compare .target .compare-label { color: var(--gold); }
.compare .target h3 { color: var(--gold-2); }

.settle { padding: 4.5rem 0; border-bottom: 1px solid var(--line); }
.chain-steps {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}
.chain-steps li {
  border-top: 1px solid var(--line);
  padding-top: 1.1rem;
}
.chain-steps .n {
  display: block;
  font-family: var(--display);
  font-size: 1.1rem;
  color: var(--gold);
  margin-bottom: 0.5rem;
}
.chain-steps strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1rem;
}
.chain-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* —— Demo / Apple Pay —— */
.demo { padding: 4.5rem 0; border-bottom: 1px solid var(--line); }
.demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 2.5rem;
  align-items: center;
}
.steps-quiet {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 0;
  max-width: 36ch;
}
.steps-quiet li {
  counter-increment: step;
  position: relative;
  padding: 0.85rem 0 0.85rem 2.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.5;
}
.steps-quiet li:last-child { border-bottom: 1px solid var(--line); }
.steps-quiet li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0.85rem;
  font-family: var(--display);
  font-size: 0.95rem;
  color: var(--gold);
}

.pos-stage {
  position: relative;
  min-height: 380px;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.counter {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, transparent 54%, #1a1510 54%, #15110d 100%),
    linear-gradient(145deg, #152032 0%, #0e1522 100%);
}
.counter::after {
  content: "";
  position: absolute; left: 0; right: 0; top: 54%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(196,164,106,0.2), transparent);
}

.terminal {
  position: absolute; left: 7%; top: 11%; width: 188px; z-index: 2;
  transform: perspective(900px) rotateY(10deg) rotateX(5deg);
}
.terminal-body {
  background: linear-gradient(165deg, #3a3f48, #1c2028 42%, #0f1217);
  border-radius: 18px;
  padding: 12px;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 24px 48px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.12);
}
.reader {
  position: relative; height: 48px; border-radius: 10px;
  background: linear-gradient(180deg, #0a0c10, #1a1f28);
  border: 1px solid rgba(255,255,255,0.08);
  display: grid; place-items: center; overflow: hidden; margin-bottom: 8px;
}
.reader-icon {
  font-size: 10px; letter-spacing: -2px; color: rgba(255,255,255,0.3);
  transform: rotate(90deg); font-family: var(--mono);
}
.reader-ring {
  position: absolute; inset: 50% auto auto 50%;
  width: 18px; height: 18px; margin: -9px 0 0 -9px;
  border: 1.5px solid rgba(111, 190, 150, 0);
  border-radius: 50%; opacity: 0;
}
.pos-stage.is-tapping .reader-ring {
  opacity: 1; border-color: rgba(111, 190, 150, 0.7);
  animation: reader-wave 1.1s var(--ease) infinite;
}
.pos-stage.is-tapping .reader-ring.r2 { animation-delay: 0.35s; }
.terminal-screen {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), transparent 30%), #071410;
  border-radius: 8px; padding: 12px 10px; min-height: 108px;
  box-shadow: inset 0 0 0 1px rgba(111,190,150,0.12);
  font-family: var(--mono); overflow: hidden;
}
.terminal-screen::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(120deg, rgba(255,255,255,0.07), transparent 35%);
}
.t-merchant { margin: 0 0 6px; font-size: 8px; letter-spacing: 0.12em; color: rgba(111,190,150,0.65); text-transform: uppercase; }
.t-label { margin: 0; font-size: 10px; color: #9fe0bc; }
.t-amount { margin: 8px 0 6px; font-size: 1.15rem; font-weight: 500; color: #f3fff8; }
.t-status { margin: 0; font-size: 9px; color: #6aa888; letter-spacing: 0.08em; text-transform: uppercase; }
.pos-stage.is-approved .terminal-screen {
  background: #0c2418;
  box-shadow: inset 0 0 0 1px rgba(111,190,150,0.45);
}
.pos-stage.is-approved .t-status { color: var(--good); }
.terminal-keys { margin-top: 10px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; }
.terminal-keys i {
  height: 14px; border-radius: 3px;
  background: linear-gradient(180deg, #4a5160, #232833);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}
.terminal-printer {
  margin-top: 8px; height: 4px; border-radius: 2px; background: #050607;
}
.terminal-stand {
  width: 68%; height: 12px; margin: 6px auto 0;
  background: linear-gradient(180deg, #1a1e26, #0a0c10);
  border-radius: 0 0 6px 6px;
}

.iphone {
  position: absolute; right: 7%; top: 8%; z-index: 4; width: 152px;
  transform: translate3d(14px, 0, 0) rotate(-10deg);
  transform-origin: 50% 80%;
  transition: transform 0.9s var(--ease);
  filter: drop-shadow(0 24px 36px rgba(0,0,0,0.5));
}
.pos-stage.is-ready .iphone { transform: translate3d(6px, 6px, 0) rotate(-7deg); }
.pos-stage.is-tapping .iphone { transform: translate3d(-70px, 52px, 0) rotate(-2deg) scale(0.96); }
.pos-stage.is-approved .iphone { transform: translate3d(-36px, 24px, 0) rotate(-5deg); }

.iphone-frame {
  position: relative; border-radius: 28px; padding: 8px;
  background: linear-gradient(145deg, #8a8e98 0%, #3a3d46 18%, #121418 48%, #0a0b0e 72%, #5a5e68 100%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.25), inset 0 0 0 3px #0d0e11;
}
.iphone-side-btn {
  position: absolute; right: -2px; top: 78px; width: 3px; height: 38px; border-radius: 2px;
  background: linear-gradient(180deg, #6a6e78, #2a2d34);
}
.pos-stage.is-auth .iphone-side-btn { box-shadow: 0 0 0 2px rgba(196,164,106,0.5); }
.iphone-silent {
  position: absolute; left: -2px; top: 66px; width: 3px; height: 14px; border-radius: 2px; background: #2a2d34;
}
.iphone-vol {
  position: absolute; left: -2px; top: 92px; width: 3px; height: 48px; border-radius: 2px;
  background: linear-gradient(180deg, #4a4e58, #2a2d34);
}
.iphone-screen {
  position: relative; border-radius: 22px; overflow: hidden; aspect-ratio: 9 / 19.5; background: #000;
}
.iphone-screen::after {
  content: ""; position: absolute; inset: 0; z-index: 4; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,0.12) 0%, transparent 28%, transparent 60%, rgba(255,255,255,0.03) 100%);
}
.island {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 70px; height: 20px; border-radius: 12px; background: #000; z-index: 5;
}
.island::after {
  content: ""; position: absolute; right: 9px; top: 5px;
  width: 9px; height: 9px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #1a2a44, #0a1020 60%, #000);
}

.apay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center;
  padding: 38px 12px 16px;
  background: linear-gradient(180deg, #1c1c1e, #0a0a0c);
  color: #f5f5f7;
}
.apay-top {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  font-size: 0.7rem; margin-bottom: 0.75rem;
}
.apay-mark { font-weight: 600; }
.apay-done { color: #0a84ff; font-weight: 600; }
.apay-done[hidden], .apay-confirm[hidden] { display: none !important; }
.apay-card { width: 100%; margin-bottom: 0.75rem; }
.apay-card-face {
  border-radius: 10px; padding: 0.8rem 0.7rem; min-height: 86px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.2), transparent 40%),
    linear-gradient(155deg, #8fa4c4, #3d5578 32%, #1a2d4d 70%, #0d1a30);
  box-shadow: 0 12px 24px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.22);
  display: grid; align-content: space-between; color: #fff;
}
.apay-card-face span { font-size: 0.5rem; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 600; }
.apay-card-face em { font-family: var(--display); font-style: italic; font-size: 1.15rem; font-weight: 700; justify-self: end; }
.apay-card-face b { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; font-weight: 500; }
.apay-amount { margin: 0 0 0.4rem; font-size: 1.15rem; font-weight: 600; letter-spacing: -0.02em; }
.apay-hint { margin: 0; font-size: 0.65rem; color: rgba(245,245,247,0.58); text-align: center; }
.apay-faceid { margin-top: 0.75rem; color: #f5f5f7; opacity: 0.85; transition: color 0.3s, transform 0.3s; }
.pos-stage.is-auth .apay-faceid { color: #30d158; transform: scale(1.05); }
.apay-confirm { margin: 0.5rem 0 0; font-size: 0.75rem; font-weight: 600; color: #30d158; }

.pos-banner {
  position: absolute; left: 50%; bottom: 12px;
  transform: translateX(-50%) translateY(8px);
  background: rgba(10, 24, 18, 0.94);
  border: 1px solid rgba(111, 190, 150, 0.4);
  padding: 0.7rem 1.1rem; text-align: center; z-index: 5;
  opacity: 0; backdrop-filter: blur(10px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.pos-banner[hidden] { display: block !important; opacity: 0; pointer-events: none; }
.pos-stage.is-approved .pos-banner { opacity: 1; transform: translateX(-50%) translateY(0); }
.pos-banner p { margin: 0; font-size: 0.625rem; letter-spacing: 0.14em; color: var(--good); text-transform: uppercase; }
.pos-banner strong {
  display: block; margin: 0.3rem 0;
  font-family: var(--display); font-size: 1.5rem; color: #fff;
}
.pos-banner span { font-size: 0.6875rem; color: var(--muted); letter-spacing: 0.06em; }

/* —— Infrastructure —— */
.band { padding: 4.5rem 0; }
.infra {
  list-style: none; margin: 1.5rem 0 0; padding: 0;
  border-top: 1px solid var(--line);
}
.infra li {
  display: grid; grid-template-columns: 3rem 1fr; gap: 1rem;
  padding: 1.35rem 0; border-bottom: 1px solid var(--line); align-items: start;
}
.infra .idx {
  font-family: var(--display); font-size: 1.15rem; color: var(--gold); padding-top: 0.1rem;
}
.infra h3 {
  margin: 0 0 0.35rem;
  font-family: var(--display); font-weight: 600; font-size: 1.2rem;
}
.infra p { margin: 0; color: var(--muted); line-height: 1.55; max-width: 52ch; font-size: 0.95rem; }

/* —— Activation —— */
.pay { padding: 3.5rem 0 5rem; border-top: 1px solid var(--line); }
.pay-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2.5rem;
  align-items: start;
}
.price-card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  position: sticky; top: 1rem;
}
.price-label {
  margin: 0; color: var(--gold);
  font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600;
}
.price {
  margin: 0.35rem 0 0.25rem;
  font-family: var(--display); font-size: 3.5rem; font-weight: 600; letter-spacing: -0.03em; line-height: 1;
}
.price span { font-size: 0.5em; vertical-align: super; margin-right: 0.15rem; }
.price-note { margin: 0 0 1rem; color: var(--muted); font-size: 0.875rem; }
.price-card ul {
  margin: 0 0 1.25rem; padding-left: 1.1rem;
  color: var(--muted); line-height: 1.6; font-size: 0.875rem;
}
.stack { display: grid; gap: 0.75rem; }
label {
  display: grid; gap: 0.35rem;
  font-size: 0.75rem; color: var(--muted); letter-spacing: 0.04em; font-weight: 500;
}
input, select {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  padding: 0.7rem 0.75rem;
  color: var(--ink);
  transition: border-color 0.2s;
}
input:focus, select:focus { border-color: rgba(196,164,106,0.45); outline: none; }
.pay-result {
  margin-top: 0.85rem; padding: 0.85rem;
  background: rgba(111, 190, 150, 0.08);
  border: 1px solid rgba(111, 190, 150, 0.3);
  color: var(--good); white-space: pre-wrap; line-height: 1.45; font-size: 0.8125rem;
}
.desk-link {
  display: inline-block; margin-top: 0.9rem;
  color: var(--muted); font-size: 0.8125rem;
}

.foot {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.5rem;
  color: var(--muted);
}
.foot-in {
  display: flex; flex-wrap: wrap; gap: 1rem 1.5rem;
  align-items: center; justify-content: space-between;
}
.foot p { margin: 0; max-width: 42ch; line-height: 1.45; font-size: 0.8125rem; }

.drawer {
  position: fixed; inset: auto 1rem 1rem 1rem; z-index: 20;
  background: var(--panel); border: 1px solid var(--line);
  padding: 0.75rem 1rem; display: grid; gap: 0; box-shadow: var(--shadow);
}
.drawer[hidden] { display: none !important; }
.drawer a {
  color: var(--ink); padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none; font-size: 0.875rem;
}
.drawer a:last-child { border-bottom: 0; }

@keyframes reader-wave {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}
@keyframes wait-pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.06); }
}

/* —— iPhone / phone access —— */
.phone-access {
  margin-top: 1.75rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.phone-access[hidden] { display: none !important; }
.phone-access-lede {
  margin: 0.35rem 0 0.9rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
  max-width: 42ch;
}
.phone-access-lede code {
  font-family: var(--mono);
  font-size: 0.84em;
  color: var(--gold-2);
}
.phone-access-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}
.phone-qr {
  width: 132px;
  height: 132px;
  padding: 0.45rem;
  background: #fff;
  border: 1px solid var(--line);
  flex: 0 0 auto;
}
.phone-qr svg,
.phone-qr img { display: block; width: 100%; height: 100%; object-fit: contain; }
.phone-access-copy { min-width: 0; flex: 1; }
.phone-url {
  display: inline-block;
  word-break: break-all;
  color: var(--gold-2);
  font-family: var(--mono);
  font-size: 0.8125rem;
  line-height: 1.4;
}
.phone-hint {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.4;
  max-width: 36ch;
}

/* —— Assistant chatbot —— */
.chatbot {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}
.chatbot-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--ink);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.chatbot-toggle:hover { border-color: rgba(196, 164, 106, 0.45); }
.chatbot-dot {
  width: 0.55rem; height: 0.55rem; border-radius: 50%;
  background: var(--good);
  box-shadow: 0 0 0 0 rgba(111, 190, 150, 0.5);
  animation: wait-pulse 1.8s ease-in-out infinite;
}
.chat-panel {
  width: min(380px, calc(100vw - 2rem));
  max-height: min(520px, calc(100vh - 6rem));
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.chat-panel[hidden] { display: none !important; }
.chat-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  background: #121c30;
}
.chat-title {
  margin: 0;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
}
.chat-sub {
  margin: 0.2rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
}
.chat-close {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.35rem;
  line-height: 1;
  padding: 0 0.15rem;
  cursor: pointer;
}
.chat-close:hover { color: var(--ink); }
.chat-log {
  padding: 0.9rem 1rem;
  overflow-y: auto;
  display: grid;
  gap: 0.7rem;
  align-content: start;
  min-height: 180px;
}
.chat-msg {
  max-width: 92%;
  padding: 0.7rem 0.8rem;
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: pre-wrap;
}
.chat-msg.bot {
  justify-self: start;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--ink);
}
.chat-msg.user {
  justify-self: end;
  background: rgba(196, 164, 106, 0.16);
  border: 1px solid rgba(196, 164, 106, 0.35);
  color: var(--gold-2);
}
.chat-msg.typing {
  color: var(--muted);
  font-style: italic;
}
.chat-suggest {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0 1rem 0.65rem;
}
.chat-suggest button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 0.72rem;
  padding: 0.4rem 0.55rem;
  cursor: pointer;
  text-align: left;
}
.chat-suggest button:hover {
  color: var(--ink);
  border-color: rgba(196, 164, 106, 0.4);
}
.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.45rem;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid var(--line);
}
.chat-form input {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  padding: 0.65rem 0.7rem;
  color: var(--ink);
  font-size: 0.875rem;
}
.chat-form .btn { padding: 0.65rem 0.9rem; font-size: 0.8125rem; }

@media (max-width: 960px) {
  .nav { display: none; }
  .menu { display: inline-flex; }
  .hero, .demo-grid, .pay-grid, .spec-row, .upgrade-grid, .compare, .chain-steps { grid-template-columns: 1fr; }
  .key-list li { grid-template-columns: 2rem 1fr; }
  .key-list .state { grid-column: 2; padding-top: 0; }
  .hero { min-height: auto; padding: 2rem 0 2.5rem; gap: 1.75rem; }
  .spec-row > div {
    border-right: 0; border-bottom: 1px solid var(--line);
    padding: 1rem 0;
  }
  .spec-row > div:last-child { border-bottom: 0; }
  .scene { min-height: 340px; }
  .deck { height: 260px; width: min(340px, 90%); }
  .metal.visa { transform: translate3d(-18px, -22px, 16px) rotateZ(-7deg) rotateX(var(--rx)) rotateY(var(--ry)); }
  .metal.master { transform: translate3d(0, 4px, 52px) rotateZ(1deg) rotateX(var(--rx)) rotateY(var(--ry)); }
  .metal.amex { transform: translate3d(18px, 30px, 90px) rotateZ(8deg) rotateX(var(--rx)) rotateY(var(--ry)); }
  .pos-stage { min-height: 340px; }
  .terminal { left: 4%; width: 150px; }
  .iphone { right: 4%; width: 124px; }
  .pos-stage.is-tapping .iphone { transform: translate3d(-48px, 44px, 0) rotate(-2deg) scale(0.95); }
  .price { font-size: 3rem; }
  .price-card { position: static; }
  .pan { font-size: 0.9rem; }
  .chat-panel {
    width: min(100vw - 1.25rem, 380px);
    max-height: min(70vh, calc(100vh - 5.5rem - env(safe-area-inset-bottom)));
  }
  .chatbot-toggle { -webkit-tap-highlight-color: transparent; }
  .phone-access-row { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .iphone { transform: translate3d(-36px, 24px, 0) rotate(-5deg) !important; }
  .pos-banner { opacity: 1 !important; transform: translateX(-50%) translateY(0) !important; }
}