@font-face {
  font-family: "Source Serif 4";
  src: url("fonts/source-serif-4.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("fonts/inter.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f5f3ee;
  --paper-2: #ebe8e1;
  --white: #ffffff;
  --ink: #101318;
  --ink-2: #2a2e35;
  --muted: #61656d;
  --rule: #d6d2c8;
  --accent: #a8501a;
  --accent-on-dark: #dc965e;
  --dark: #0e1115;
  --darker: #0a0c0f;
  --on-dark: #eeece7;
  --on-dark-muted: #a2a6ae;
  --rule-dark: rgba(255, 255, 255, 0.14);

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
html, body { overflow-x: clip; }
img { max-width: 100%; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; color: var(--ink); margin: 0; }
h2 { font-size: clamp(36px, 4.6vw, 66px); line-height: 1.04; letter-spacing: -0.02em; }
strong { font-weight: 600; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 48px; }

.sec-head { margin-bottom: 64px; }
.sec-label {
  margin: 0 0 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: background .35s, border-color .35s;
  border-bottom: 1px solid transparent;
}
.site-header.solid {
  background: rgba(10, 12, 15, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--rule-dark);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo img { display: block; height: 26px; width: auto; }
.site-header nav { display: flex; align-items: center; gap: 32px; }
.site-header nav a { color: rgba(238, 236, 231, 0.78); text-decoration: none; font-size: 14px; font-weight: 500; transition: color .2s; }
.site-header nav a:hover { color: #fff; }
.site-header nav a.nav-cta { color: #fff; border: 1px solid rgba(255, 255, 255, 0.45); padding: 9px 18px; border-radius: 2px; }
.site-header nav a.nav-cta:hover { background: #fff; color: var(--ink); }

/* Buttons */
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 30px; }
.btn { display: inline-block; padding: 16px 28px; border-radius: 2px; font-size: 15px; font-weight: 600; text-decoration: none; transition: background .2s, color .2s; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--paper-2); }
.btn-lg { padding: 22px 38px; font-size: 18px; }
.link-light { color: #fff; font-size: 15px; font-weight: 500; text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, 0.5); padding-bottom: 2px; }
.text-link { display: inline-block; margin-top: 28px; font-size: 15px; font-weight: 600; color: var(--accent); text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #8f4415; }

/* Hero */
.hero { position: relative; height: 100vh; height: 100svh; min-height: 640px; overflow: hidden; background: var(--darker); color: var(--on-dark); }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 62% 30%; transform-origin: 62% 30%; animation: hero-zoom 14s ease-out both; }
.hero-shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 10, 13, 0.92) 0%, rgba(8, 10, 13, 0.72) 34%, rgba(8, 10, 13, 0.08) 62%, rgba(8, 10, 13, 0) 100%),
    linear-gradient(0deg, rgba(8, 10, 13, 0.9) 0%, rgba(8, 10, 13, 0) 30%);
}
.hero-copy { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center; padding-top: 40px; padding-bottom: 150px; }
.hero h1 { color: #fff; font-size: clamp(76px, 11.4vw, 216px); line-height: 0.86; letter-spacing: -0.045em; margin: 0 0 30px; }
@media (max-height: 840px) and (min-width: 981px) { .hero h1 { font-size: clamp(64px, 9.2vw, 150px); } .hero-lead { font-size: 17px; margin-bottom: 28px; } .hero-copy { padding-bottom: 130px; } }
.hero-line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero-line > span { display: block; animation: hero-rise 1.1s cubic-bezier(.2, .7, .1, 1) both; }
.hero-line + .hero-line > span { animation-delay: .14s; }
.hero .kicker { font-size: 14px; }
.hero-lead { margin: 0 0 36px; max-width: 32em; font-size: clamp(18px, 1.45vw, 22px); line-height: 1.5; color: #d5d7dc; }
.hero-in { animation: hero-fade 1s ease .55s both; }
.hero-facts { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(4, 1fr); margin: 0 auto; max-width: var(--max); padding-bottom: 34px; }
.hero-facts div { padding: 20px 24px 0; border-top: 1px solid var(--rule-dark); }
.hero-facts div:first-child { padding-left: 0; }
.hero-facts dt { font-size: 11px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-dark-muted); }
.hero-facts dd { margin: 6px 0 0; font-family: var(--serif); font-size: clamp(20px, 1.9vw, 30px); line-height: 1.1; color: #fff; white-space: nowrap; }
.hero-scan {
  position: absolute; z-index: 1; right: 6%; top: 52%;
  display: flex; align-items: center; gap: 18px;
  padding: 16px 26px 16px 16px; background: #fff; border-radius: 6px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  animation: hero-pop .9s cubic-bezier(.2, 1.3, .4, 1) 1.1s both;
}
.hero-qr { display: block; width: clamp(92px, 8vw, 140px); height: auto; }
.hero-scan-text b { display: block; font: 700 clamp(19px, 1.6vw, 26px)/1.1 var(--sans); color: var(--ink); }
.hero-scan-text span { display: block; margin-top: 6px; font: 500 clamp(13px, 1vw, 15px)/1.3 var(--sans); color: var(--muted); }
.hero-ring { position: absolute; inset: -2px; border: 2px solid #fff; border-radius: 8px; animation: hero-ring 2.4s ease-out 2s infinite; pointer-events: none; }
@keyframes hero-zoom { from { transform: scale(1.12); } to { transform: scale(1); } }
@keyframes hero-rise { from { transform: translateY(105%); } to { transform: none; } }
@keyframes hero-fade { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes hero-pop { from { opacity: 0; transform: scale(.6) translateY(30px); } to { opacity: 1; transform: none; } }
@keyframes hero-ring { from { opacity: .9; transform: scale(1); } to { opacity: 0; transform: scale(1.25); } }

/* Opportunity */
.opp { padding: 160px 0 140px; background: var(--dark); color: var(--on-dark); }
.opp .sec-label { color: var(--accent-on-dark); }
.opp h2 { color: #fff; font-size: clamp(50px, 7.4vw, 128px); line-height: 0.94; letter-spacing: -0.035em; }
.opp h2 em { font-style: italic; color: var(--accent-on-dark); }
.sec-intro { margin: 32px 0 0; max-width: 30em; font-size: clamp(19px, 1.6vw, 24px); line-height: 1.45; color: #c9ccd3; }
.opp .sec-head { margin-bottom: 96px; }

.stack { display: grid; row-gap: 14px; }
.stack-row { display: grid; grid-template-columns: 150px 1fr 210px; column-gap: 32px; align-items: center; }
.stack-count { margin: 0; text-align: right; font-family: var(--serif); font-size: 46px; line-height: 1; color: #7c8089; white-space: nowrap; }
.stack-sells .stack-count { font-size: 52px; color: var(--accent-on-dark); }
.stack-label { margin: 0; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-dark-muted); }
.stack-sells .stack-label { color: #fff; }
.stack-bar, .stack-cols { display: grid; grid-template-columns: repeat(5, 1fr); column-gap: 3px; }
.seg { height: 120px; display: flex; flex-direction: column; justify-content: space-between; padding: 16px 18px 18px; border-radius: 4px; font: 400 clamp(19px, 1.7vw, 25px)/1.08 var(--serif); color: var(--ink); }
.seg b { font: 600 12px/1 var(--sans); letter-spacing: 0.14em; color: rgba(16, 19, 24, 0.6); }
.seg-air { justify-content: center; background: #3a3f48; color: #e6e7ea; font: 600 13px/1 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; }
.seg-empty { border: 1px dashed rgba(255, 255, 255, 0.22); }
.stack-today .seg { height: 50px; padding: 0 18px; }
.s1 { background: #f0b27a; }
.s2 { background: #e39a5d; }
.s3 { background: #d4834a; }
.s4 { background: #c06f38; }
.js .stack-sells .seg:not(.seg-air) { transform: scaleX(0); transform-origin: left center; transition: transform .7s cubic-bezier(.2, .7, .1, 1); }
.js .stack.in .stack-sells .seg { transform: none; }
.stack .s1 { transition-delay: .35s; }
.stack .s2 { transition-delay: .55s; }
.stack .s3 { transition-delay: .75s; }
.stack .s4 { transition-delay: .95s; }
.stack-keys { align-items: start; margin-top: 18px; }
.key { padding: 0 22px 0 0; }
.key h3 { display: none; }
.key p { margin: 0; font-size: 15px; line-height: 1.5; color: #c3c6cc; }
.key-air p { font-size: 14px; }
.stack-note { margin: 40px 0 0 182px; font-size: 13px; color: #7c8089; }
.why { display: grid; grid-template-columns: 150px 1fr; gap: 32px; margin-top: 110px; padding: 36px 0; border-top: 1px solid var(--rule-dark); border-bottom: 1px solid var(--rule-dark); }
.why-label { margin: 4px 0 0; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-on-dark); }
.why ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.why li { font-family: var(--serif); font-size: 21px; line-height: 1.35; color: #fff; }

/* Story (scroll-driven) */
.story { background: var(--darker); color: var(--on-dark); }
.story-grid {
  display: grid;
  grid-template-columns: 0.74fr 1.26fr;
  column-gap: 40px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
}
.story-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  background: radial-gradient(58% 52% at 52% 50%, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0) 72%);
}
.story-steps { order: -1; }
.device { position: relative; width: 100%; padding: 0 21% 0 0; }
.tv { position: relative; }
.tv::after {
  content: "";
  position: absolute;
  left: 8%; right: 8%; bottom: -60px;
  height: 80px;
  background: radial-gradient(ellipse at center, rgba(210, 190, 175, 0.14), transparent 70%);
  pointer-events: none;
}
.tv-frame {
  background: linear-gradient(180deg, #1a1c20, #08090b);
  padding: 1.1%;
  border-radius: 14px;
  box-shadow: 0 70px 120px -40px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(255, 255, 255, 0.07), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}
.tv-screen {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 4px;
  background: #000 url("img/photos/tv-scene.jpg") center / cover;
  container-type: inline-size;
}
.tv-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 32%);
  pointer-events: none;
}
.tv-stand { width: 24%; height: 10px; margin: 0 auto; border-radius: 0 0 6px 6px; background: linear-gradient(#1d1f23, #0c0d0f); }
.offer {
  position: absolute;
  right: 5.5%;
  top: 6.5%;
  display: flex;
  align-items: center;
  gap: 1.6cqw;
  padding: 1.1cqw 2.4cqw 1.1cqw 1.1cqw;
  background: #fff;
  box-shadow: 0 1cqw 3cqw rgba(0, 0, 0, 0.45);
}
.device[data-state="1"] .offer { animation: offer 2.2s ease-in-out infinite; }
@keyframes offer {
  0%, 100% { box-shadow: 0 0 0 0.25cqw rgba(220, 150, 94, 0.95), 0 1cqw 3cqw rgba(0, 0, 0, 0.45); }
  50% { box-shadow: 0 0 0 1.3cqw rgba(220, 150, 94, 0), 0 1cqw 3cqw rgba(0, 0, 0, 0.45); }
}
.qr { display: block; width: 11.5cqw; height: 11.5cqw; }
.offer-text b { display: block; font: 700 2.6cqw/1.1 var(--sans); color: #101318; }
.offer-text span { display: block; margin-top: 0.6cqw; font: 500 1.6cqw/1.3 var(--sans); color: #61656d; }

.phone {
  position: absolute;
  right: 0;
  bottom: -14%;
  width: 25.5%;
  container-type: inline-size;
  opacity: 0;
  transform: translate(14%, 22%) rotate(8deg);
  transition: transform 1.1s cubic-bezier(.2, .8, .2, 1), opacity .9s ease;
  filter: drop-shadow(0 40px 50px rgba(0, 0, 0, 0.7));
}
.device[data-state="2"] .phone,
.device[data-state="3"] .phone { opacity: 1; transform: translate(0, 0) rotate(-4deg); }
.phone-body {
  aspect-ratio: 9 / 19.5;
  padding: 3.4cqw;
  border-radius: 17cqw;
  background: linear-gradient(145deg, #55575d 0%, #1c1d21 22%, #0b0c0e 70%, #3c3e43 100%);
  box-shadow: inset 0 0 0 0.7cqw #050506, 0 0 0 0.45cqw #2c2d31;
}
.phone-screen {
  position: relative;
  height: 100%;
  overflow: hidden;
  border-radius: 14cqw;
  background: #f6f6f4;
  color: #101318;
  font-family: var(--sans);
}
.island { position: absolute; z-index: 3; top: 3.4cqw; left: 50%; width: 30cqw; height: 9cqw; margin-left: -15cqw; border-radius: 9cqw; background: #050506; }
.status { position: absolute; top: 5.4cqw; left: 10cqw; right: 9cqw; display: flex; justify-content: space-between; align-items: center; font: 600 4.3cqw/1 var(--sans); }
.bars { position: relative; width: 9cqw; height: 4.4cqw; border: 0.5cqw solid #101318; border-radius: 1.3cqw; }
.bars::after { content: ""; position: absolute; top: 0.6cqw; bottom: 0.6cqw; left: 0.6cqw; right: 2cqw; border-radius: 0.5cqw; background: #101318; }
.scr { position: absolute; inset: 0; padding: 21cqw 7cqw 8cqw; opacity: 0; transition: opacity .5s ease; }
.device[data-state="1"] .scr-checkout,
.device[data-state="2"] .scr-checkout { opacity: 1; }
.device[data-state="3"] .scr-done { opacity: 1; transition-delay: .2s; }
.scr-k { margin: 0; font: 600 3.3cqw/1 var(--sans); letter-spacing: 0.12em; text-transform: uppercase; color: #61656d; }
.scr-h { margin: 2cqw 0 6cqw; font: 700 8cqw/1.1 var(--sans); letter-spacing: -0.02em; }
.prod { display: flex; align-items: center; gap: 3.6cqw; margin-bottom: 4cqw; padding: 3.6cqw; border-radius: 5cqw; background: #fff; box-shadow: 0 0.4cqw 1.4cqw rgba(0, 0, 0, 0.06); }
.prod img { flex: none; width: 17cqw; height: 17cqw; border-radius: 3.6cqw; object-fit: cover; }
.prod div { flex: 1; min-width: 0; }
.prod b { display: block; font: 600 4.1cqw/1.25 var(--sans); }
.prod span { display: block; margin-top: 0.8cqw; font: 400 3.2cqw/1.3 var(--sans); color: #61656d; }
.prod em { font: 600 4.1cqw/1 var(--sans); font-style: normal; }
.row { display: flex; justify-content: space-between; padding: 3.4cqw 1cqw; border-bottom: 0.3cqw solid #e6e4df; font: 400 3.8cqw/1.2 var(--sans); }
.row span { color: #61656d; }
.row b { font-weight: 600; }
.row.total { border-bottom: 0; }
.row.total b { font-size: 4.4cqw; }
.pay { position: absolute; left: 7cqw; right: 7cqw; bottom: 9cqw; text-align: center; }
.pay span { display: block; padding: 4.8cqw 0; border-radius: 4.6cqw; background: #101318; color: #fff; font: 600 4.6cqw/1 var(--sans); }
.pay small { display: block; margin-top: 2.8cqw; font: 400 3.1cqw/1.2 var(--sans); color: #61656d; }
.scr-done { display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: 42cqw; }
.tick { display: grid; place-items: center; width: 22cqw; height: 22cqw; margin-bottom: 7cqw; border-radius: 50%; background: #101318; transform: scale(.5); transition: transform .7s cubic-bezier(.2, 1.5, .4, 1) .3s; }
.device[data-state="3"] .tick { transform: scale(1); }
.tick svg { width: 11cqw; height: 11cqw; fill: none; stroke: #fff; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.scr-done .scr-h { margin: 0 0 2.4cqw; font-size: 6.8cqw; }
.scr-sub { margin: 0 0 10cqw; font: 400 3.7cqw/1.5 var(--sans); color: #61656d; }
.prod-mini { width: 100%; text-align: left; }

.story-steps { padding-right: 2%; }
.step-intro { padding-top: 76px; }

.kicker { margin: 0 0 24px; font-size: 13px; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent-on-dark); }
.step-intro h1 { color: #fff; font-size: clamp(64px, 7.6vw, 132px); line-height: 0.92; letter-spacing: -0.035em; margin-bottom: 30px; }
.step-intro .lead { margin: 0 0 36px; max-width: 26em; font-size: clamp(17px, 1.3vw, 19px); color: #c9ccd3; }
.intro-facts { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 0; margin: 56px 0 0; }
.intro-facts div { padding: 0 22px; border-left: 1px solid var(--rule-dark); }
.intro-facts div:first-child { padding-left: 0; border-left: 0; }
.intro-facts dt { font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-dark-muted); }
.intro-facts dd { margin: 4px 0 0; font-family: var(--serif); font-size: 19px; color: #fff; white-space: nowrap; }
.step { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; transition: opacity .5s; }
.js .step { opacity: .22; }
.js .step.active, .js .step.step-intro { opacity: 1; }
.step-no { margin: 0 0 20px; font-size: 12px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent-on-dark); }
.step h2 { color: #fff; font-size: clamp(38px, 3.8vw, 60px); line-height: 1.04; margin-bottom: 20px; max-width: 9em; }
.step p:last-child { margin: 0; max-width: 22em; font-size: 18px; color: var(--on-dark-muted); }

/* Compare */
.compare-v { padding: 150px 0; background: var(--paper); }
.compare-v h2 { margin-bottom: 80px; font-size: clamp(36px, 4.8vw, 72px); }
.muted-h { color: var(--accent); }
.chain { display: grid; grid-template-columns: 210px 1fr 150px; gap: 40px; align-items: center; padding: 44px 0; border-top: 1px solid var(--rule); }
.chain-hl { border-bottom: 1px solid var(--rule); }
.chain-label { margin: 0; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.chain-hl .chain-label { color: var(--accent); }
.track { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); }
.track li { position: relative; padding-top: 30px; font-size: 16px; line-height: 1.3; color: var(--muted); white-space: nowrap; }
.track li::before { content: ""; position: absolute; z-index: 1; top: 0; left: 0; width: 13px; height: 13px; border-radius: 50%; border: 1.5px solid #a9a59b; background: var(--paper); }
.track li::after { content: ""; position: absolute; top: 6px; left: 13px; right: 0; height: 1px; background: #c9c4b9; }
.track li:last-child::after { display: none; }
.chain-hl .track li { padding-top: 34px; font-size: 20px; font-weight: 600; color: var(--ink); }
.chain-hl .track li::before { top: -2px; width: 19px; height: 19px; border: 0; background: var(--accent); }
.chain-hl .track li::after { top: 6px; left: 19px; height: 3px; background: var(--accent); }
.chain-count { margin: 0; text-align: right; font-family: var(--serif); font-size: 48px; line-height: 1; color: #a9a59b; }
.chain-hl .chain-count { color: var(--accent); }
.js .chain .track li { opacity: 0; transition: opacity .5s; }
.js .chain.in .track li { opacity: 1; }
.chain .track li:nth-child(2) { transition-delay: .12s; }
.chain .track li:nth-child(3) { transition-delay: .24s; }
.chain .track li:nth-child(4) { transition-delay: .36s; }
.chain .track li:nth-child(5) { transition-delay: .48s; }
.chain .track li:nth-child(6) { transition-delay: .6s; }

/* Value */
.value { padding: 150px 0; background: var(--paper-2); }
.aud-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.aud { position: relative; overflow: hidden; aspect-ratio: 4 / 5; background: var(--dark); }
.aud img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s ease; }
.aud:hover img { transform: scale(1.04); }
.aud::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 12, 15, 0) 25%, rgba(10, 12, 15, 0.92) 78%); }
.aud-body { position: absolute; z-index: 1; left: 0; right: 0; bottom: 0; padding: 32px 30px 26px; color: var(--on-dark); }
.aud-label { margin: 0 0 14px; font-family: var(--serif); font-size: 30px; line-height: 1.1; color: #fff; }
.aud ul { margin: 0; padding: 0; list-style: none; }
.aud li { padding: 9px 0; border-top: 1px solid rgba(255, 255, 255, 0.18); font-size: 15px; color: #e3e3e0; }

/* Numbers */
.numbers { padding: 140px 0 90px; background: var(--dark); color: var(--on-dark); }
.num-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.num { padding: 0 28px; border-left: 1px solid var(--rule-dark); }
.num:first-child { padding-left: 0; border-left: 0; }
.n { margin: 0 0 18px; font-family: var(--serif); font-size: clamp(56px, 6.6vw, 108px); line-height: 0.95; letter-spacing: -0.03em; color: #fff; }
.n small { font-size: 0.38em; letter-spacing: 0; color: var(--on-dark-muted); }
.l { margin: 0; max-width: 17em; font-size: 15px; color: var(--on-dark-muted); }
.l sup, .sources sup { color: var(--accent-on-dark); }
.sources { margin: 72px 0 0; padding-top: 18px; border-top: 1px solid var(--rule-dark); font-size: 12.5px; color: #7c808a; }

/* Ownership */
.own { padding: 150px 0; background: var(--paper); }
.own h2 { font-size: clamp(40px, 5.2vw, 80px); }
.own .sec-intro { color: var(--ink-2); max-width: 34em; }
.own-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px; margin-bottom: 88px; }
.own-item span { display: block; font-family: var(--serif); font-size: 64px; line-height: 1; color: var(--accent); }
.own-item h3 { margin: 18px 0 8px; font-size: 30px; }
.own-item p { margin: 0; color: var(--muted); }
.holders { display: grid; grid-template-columns: 1fr 1fr; column-gap: 56px; margin: 0; }
.holders div { padding: 22px 0; border-top: 1px solid var(--rule); }
.holders dt { font-family: var(--serif); font-size: 23px; color: var(--ink); }
.holders dd { margin: 4px 0 0; color: var(--muted); font-size: 16px; }

/* Band */
.band { position: relative; height: 82vh; min-height: 520px; overflow: hidden; background: var(--dark); }
.band img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 55%; }
.band-shade { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8, 10, 13, 0.9) 0%, rgba(8, 10, 13, 0.25) 50%, rgba(8, 10, 13, 0.15) 100%); }
.band-copy { position: absolute; left: 0; right: 0; bottom: 11%; }
.band-copy p { margin: 0; max-width: 15em; font-family: var(--serif); font-size: clamp(34px, 4.6vw, 70px); line-height: 1.04; letter-spacing: -0.02em; color: #fff; }

/* Patent */
.patent { padding: 150px 0; background: var(--paper); }
.patent-no { margin: 0; font-family: var(--serif); font-size: clamp(56px, 10.5vw, 172px); line-height: 0.92; letter-spacing: -0.035em; color: var(--ink); white-space: nowrap; }
.patent-title { margin: 22px 0 72px; font-family: var(--serif); font-style: italic; font-size: 24px; color: var(--muted); }
.kfacts { display: grid; grid-template-columns: repeat(6, 1fr); margin: 0 0 104px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule); }
.kfacts div { padding: 22px 18px 26px 0; }
.kfacts dt { font-size: 11px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.kfacts dd { margin: 8px 0 0; font-family: var(--serif); font-size: clamp(18px, 1.65vw, 24px); color: var(--ink); line-height: 1.2; white-space: nowrap; }
.patent-split { display: grid; grid-template-columns: 1.15fr 1fr; gap: 88px; align-items: start; }

.fig { margin: 0; color: var(--ink); }
.fig svg { display: block; width: 100%; height: auto; }
.fig-step circle { fill: var(--ink); }
.fig-step text { fill: #fff; font: 600 11px var(--sans); text-anchor: middle; }
.fig-label text { fill: var(--ink-2); font: 500 12px var(--sans); text-anchor: middle; }
.fig-num text { fill: var(--ink); font: italic 14px var(--serif); }
.fig-cap text { fill: var(--muted); font: 12px var(--sans); text-anchor: middle; }
.fig figcaption { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--rule); font-size: 13px; color: var(--muted); }

.list-title { font-size: 26px; margin-bottom: 10px; }
.list-title ~ .list-title { margin-top: 44px; }
.rule-list { margin: 0; padding: 0; list-style: none; }
.rule-list li { position: relative; padding: 12px 0 12px 26px; border-top: 1px solid var(--rule); font-size: 16px; color: var(--ink-2); }
.rule-list li::before { content: ""; position: absolute; left: 0; top: 24px; width: 12px; height: 1px; background: var(--accent); }

/* Inventor */
.inventor-sec { padding: 110px 0; background: var(--paper-2); }
.inv-row { display: grid; grid-template-columns: 1fr 1.25fr; gap: 72px; align-items: end; }
.inventor h2 { font-size: clamp(44px, 5.6vw, 84px); line-height: 1; }
.inv-text { margin: 0; max-width: 34em; font-size: 18px; color: var(--ink-2); }

/* Process */
.process { padding: 150px 0; background: var(--paper); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.steps li { padding-top: 22px; border-top: 2px solid var(--ink); }
.steps span { display: block; font-family: var(--serif); font-size: 56px; line-height: 1; color: var(--accent); }
.steps h3 { margin: 16px 0 6px; font-size: 27px; }
.steps p { margin: 0; color: var(--muted); font-size: 15.5px; }
.structures { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 80px; }
.structures div { padding: 26px 28px; border: 1px solid var(--rule); background: #fff; }
.structures b { display: block; margin-bottom: 4px; font-family: var(--serif); font-weight: 400; font-size: 24px; color: var(--ink); }
.structures span { color: var(--muted); font-size: 15px; }
.structures .hl { background: var(--ink); border-color: var(--ink); }
.structures .hl b { color: #fff; }
.structures .hl span { color: var(--on-dark-muted); }

/* FAQ */
.faq-sec { padding: 130px 0; background: var(--paper-2); }
.faq-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 80px; align-items: start; }
.faq { border-bottom: 1px solid var(--rule); }
.faq details { border-top: 1px solid var(--rule); }
.faq summary { position: relative; cursor: pointer; list-style: none; padding: 24px 56px 24px 0; font-family: var(--serif); font-size: 22px; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 50%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  background:
    linear-gradient(var(--ink), var(--ink)) center / 14px 1.5px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center / 1.5px 14px no-repeat;
  transition: transform .25s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 26px; max-width: 44em; color: var(--ink-2); }

/* Contact */
.contact { padding: 170px 0 150px; background: var(--darker); color: var(--on-dark); }
.contact .sec-label { color: var(--accent-on-dark); }
.contact h2 { margin-bottom: 64px; color: #fff; font-size: clamp(52px, 7.6vw, 124px); line-height: 0.96; letter-spacing: -0.03em; }
.contact-row { display: flex; flex-wrap: wrap; align-items: center; gap: 28px 48px; }
.contact address { font-style: normal; font-size: 15px; color: var(--on-dark-muted); }
.contact address strong { color: #fff; }

/* Footer */
.site-footer { background: var(--darker); border-top: 1px solid var(--rule-dark); color: var(--on-dark-muted); font-size: 13px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; padding-top: 28px; padding-bottom: 28px; }
.site-footer img { display: block; height: 18px; width: auto; }
.footer-links a { color: var(--on-dark-muted); margin-left: 24px; text-decoration: none; }
.footer-links a:hover { color: #fff; }

/* Legal pages */
.legal { padding: 168px 0 128px; }
.legal .wrap { max-width: 820px; }
.legal h1 { font-size: clamp(36px, 4.4vw, 56px); letter-spacing: -0.015em; margin: 0 0 44px; }
.legal h2 { font-family: var(--sans); font-weight: 600; font-size: 17px; letter-spacing: 0; line-height: 1.4; margin: 40px 0 8px; }
.legal p { color: var(--ink-2); }
.facts { margin: 0; border-top: 1px solid var(--ink); }
.facts div { display: grid; grid-template-columns: 12em 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.facts dt { color: var(--muted); font-size: 15px; }
.facts dd { margin: 0; color: var(--ink); font-weight: 500; }
.legal .updated { font-size: 14px; color: var(--muted); margin-top: 52px; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 1s ease, transform 1s ease; }
.js .reveal.in { opacity: 1; transform: none; }
.aud-grid .reveal:nth-child(2), .num-grid .reveal:nth-child(2), .own-grid .reveal:nth-child(2), .steps .reveal:nth-child(2) { transition-delay: .12s; }
.aud-grid .reveal:nth-child(3), .num-grid .reveal:nth-child(3), .own-grid .reveal:nth-child(3), .steps .reveal:nth-child(3) { transition-delay: .24s; }
.num-grid .reveal:nth-child(4), .steps .reveal:nth-child(4) { transition-delay: .36s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .device[data-state="1"] .offer { animation: none; }
  .hero-img, .hero-line > span, .hero-in, .hero-scan, .hero-ring { animation: none; }
  *, *::before, *::after { transition-duration: .01s !important; transition-delay: 0s !important; }
}

/* Responsive */
@media (max-width: 1100px) {
  .site-header nav { gap: 22px; }
  .stack-row { grid-template-columns: 1fr auto; row-gap: 12px; }
  .stack-row .stack-bar, .stack-row .stack-cols { grid-column: 1 / -1; grid-row: 2; }
  .stack-count { font-size: 34px; }
  .stack-sells .stack-count { font-size: 40px; }
  .stack-keys .stack-count { display: none; }
  .why { grid-template-columns: 1fr; row-gap: 12px; }
  .stack-note { margin-left: 0; }
  .stack-keys .stack-label { display: none; }
  .seg { padding: 0 14px; font-size: 24px; }
  .kfacts { grid-template-columns: repeat(3, 1fr); }
  .kfacts div:nth-child(-n+3) { border-bottom: 1px solid var(--rule); }
}
@media (max-width: 980px) {
  .wrap { padding: 0 28px; }
  .site-header nav a:not(.nav-cta) { display: none; }

  .story-grid { grid-template-columns: 1fr; padding: 0 24px; }
  .story-steps { order: 0; }
  .step-intro { min-height: auto; padding: 8px 0 72px; justify-content: flex-start; }
  .intro-facts { grid-template-columns: 1fr 1fr; row-gap: 18px; margin-top: 40px; }
  .intro-facts div:nth-child(3) { padding-left: 0; border-left: 0; }
  .story-stage { top: 64px; height: auto; z-index: 2; padding: 84px 0 56px; background: var(--darker); }
  .device { padding-right: 20%; }
  .step { min-height: 80vh; justify-content: flex-end; padding-bottom: 14vh; }
  .story-steps { padding-left: 0; }

  .hero-img { object-position: 50% 20%; transform-origin: 50% 20%; }
  .hero-shade { background: linear-gradient(0deg, rgba(8, 10, 13, 0.96) 0%, rgba(8, 10, 13, 0.85) 40%, rgba(8, 10, 13, 0.05) 66%, rgba(8, 10, 13, 0.3) 100%); }
  .hero-copy { justify-content: flex-end; padding-bottom: 190px; }
  .hero-facts { grid-template-columns: 1fr 1fr; row-gap: 14px; padding: 0 28px 26px; }
  .hero-facts div { padding: 12px 16px 0 0; }
  .hero-facts div:nth-child(n+3) { border-top: 0; padding-top: 0; }
  .hero-scan { right: 24px; top: 104px; padding: 10px 16px 10px 10px; gap: 12px; }
  .hero-qr { width: 72px; }
  .story-steps .step:first-child { padding-top: 0; }

  .opp, .compare-v, .value, .own, .patent, .process { padding: 104px 0; }
  .why ul { grid-template-columns: 1fr; gap: 16px; }
  .chain { grid-template-columns: 1fr auto; gap: 24px; padding: 36px 0; }
  .chain .track { grid-column: 1 / -1; grid-row: 2; }
  .chain-count { font-size: 36px; }
  .aud-grid { grid-template-columns: 1fr; }
  .aud { aspect-ratio: 4 / 3.6; }
  .num-grid { grid-template-columns: 1fr 1fr; row-gap: 56px; }
  .num:nth-child(3) { padding-left: 0; border-left: 0; }
  .own-grid { grid-template-columns: 1fr; gap: 40px; margin-bottom: 64px; }
  .holders { grid-template-columns: 1fr; }
  .patent-no { white-space: normal; }
  .patent-split { grid-template-columns: 1fr; gap: 64px; }
  .inv-row { grid-template-columns: 1fr; gap: 24px; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 48px; }
  .structures { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 620px) {
  .wrap { padding: 0 20px; }
  body { font-size: 16px; }
  .logo img { height: 22px; }
  .site-header .wrap { height: 64px; }
  .hero h1 { font-size: 60px; margin-bottom: 18px; }
  .hero .kicker { margin-bottom: 16px; }
  .hero-lead { font-size: 15.5px; line-height: 1.45; margin-bottom: 22px; }
  .hero-copy { padding-bottom: 164px; }
  .hero-scan { top: 72px; }
  .aud:nth-child(3) { aspect-ratio: 7 / 10; }
  .band-copy br, .own h2 br, .process h2 br { display: none; }
  .hero-facts { padding: 0 20px 22px; }
  .hero-facts dd { font-size: 19px; }
  .hero-scan { right: 16px; top: 84px; }
  .hero-qr { width: 60px; }
  .hero-scan-text b { font-size: 16px; }
  .hero-scan-text span { font-size: 12px; }
  .opp .sec-head { margin-bottom: 64px; }
  .stack-today { display: none; }
  .stack-sells .stack-bar { display: none; }
  .stack-sells .stack-label { color: var(--accent-on-dark); }
  .stack-cols { grid-template-columns: 1fr; row-gap: 3px; }
  .key { position: relative; padding: 18px 18px 18px 74px; border-radius: 4px; background: #f0b27a; }
  .key:nth-child(3) { background: #e39a5d; }
  .key:nth-child(4) { background: #d4834a; }
  .key:nth-child(5) { background: #c06f38; }
  .key h3 { display: block; color: var(--ink); font-size: 22px; margin: 0 0 4px; }
  .key h3 b { display: block; position: absolute; font-family: var(--serif); color: var(--ink); left: 18px; top: 16px; font-weight: 400; font-size: 30px; }
  .key p { color: rgba(16, 19, 24, 0.78); font-size: 15px; }
  .key-air { background: #3a3f48; padding: 14px 18px; }
  .key-air p { color: #e6e7ea; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; }
  .key-air p::before { content: "Airtime · "; }
  .actions { gap: 20px; }
  .story-stage { top: 64px; padding: 20px 0 36px; }
  .step h2 { font-size: 34px; }
  .step p:last-child { font-size: 16px; }
  .track { grid-template-columns: 1fr; row-gap: 0; }
  .track li { padding: 0 0 18px 30px; }
  .track li::before { top: 3px; }
  .track li::after { top: 16px; bottom: 0; left: 6px; right: auto; width: 1px; height: auto; }
  .chain-hl .track li { padding: 0 0 22px 34px; font-size: 18px; }
  .chain-hl .track li::before { top: 2px; }
  .chain-hl .track li::after { top: 21px; left: 8px; width: 3px; height: auto; }
  .num-grid { grid-template-columns: 1fr; row-gap: 44px; }
  .num { padding-left: 0; border-left: 0; }
  .kfacts { grid-template-columns: 1fr 1fr; }
  .kfacts div { border-bottom: 1px solid var(--rule); }
  .steps { grid-template-columns: 1fr; }
  .facts div { grid-template-columns: 1fr; gap: 2px; }
  .footer-links a { margin: 0 22px 0 0; }
  .contact h2 { font-size: 52px; }
}