:root {
  --ink: #120d0a;
  --background: #1c1410;
  --background-deep: #120d0a;
  --surface: #2a1f18;
  --card: #352820;
  --card-light: #3c2e24;
  --gold: #c8a84b;
  --gold-bright: #dfc567;
  --gold-dark: #7c6528;
  --cream: #f5edd4;
  --muted: #b8ae9b;
  --subtle: #847b6e;
  --green: #4a7a5a;
  --red: #e36d66;
  --line: rgba(200, 168, 75, 0.23);
  --line-soft: rgba(245, 237, 212, 0.09);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --shell: min(1180px, calc(100vw - 48px));
  --header-height: 76px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 20% -10%, rgba(200, 168, 75, 0.06), transparent 32rem),
    var(--background);
  color: var(--cream);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open,
body.lightbox-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.04;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(2.35rem, 5vw, 4.8rem);
  letter-spacing: -0.035em;
}

h3 {
  line-height: 1.2;
}

::selection {
  background: var(--gold);
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid var(--gold-bright);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--cream);
  color: var(--ink);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: clamp(88px, 11vw, 152px);
}

.section-dark {
  background:
    linear-gradient(90deg, transparent 49.95%, rgba(200, 168, 75, 0.035) 50%, transparent 50.05%),
    var(--background-deep);
}

.section-dark::before,
.section-dark::after {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.section-dark::before { top: 0; }
.section-dark::after { bottom: 0; }

.section-kicker,
.eyebrow {
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1.5;
  text-transform: uppercase;
}

.section-kicker {
  margin-bottom: 17px;
}

.section-lead {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.26rem);
  line-height: 1.75;
}

.section-heading {
  max-width: 800px;
  margin-bottom: clamp(48px, 7vw, 80px);
}

.section-heading-center {
  margin-inline: auto;
  text-align: center;
}

.section-heading-center .section-lead {
  max-width: 650px;
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: background 250ms ease, border-color 250ms ease, box-shadow 250ms ease;
}

.site-header.is-scrolled,
.site-header:has(.nav-links.is-open) {
  border-color: var(--line-soft);
  background: rgba(18, 13, 10, 0.92);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.2);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.navigation {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--cream);
  font-family: var(--serif);
  font-size: 0.96rem;
  font-weight: 600;
  gap: 12px;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand img {
  border: 1px solid rgba(200, 168, 75, 0.35);
  border-radius: 9px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  position: relative;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease;
}

.nav-links a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--cream);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-links .nav-cta {
  min-height: 42px;
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--gold-bright);
}

.nav-links .nav-cta:hover {
  border-color: var(--gold);
  background: rgba(200, 168, 75, 0.07);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--cream);
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(4) { transform: translateY(-7px) rotate(-45deg); }

.hero {
  position: relative;
  min-height: max(780px, 100svh);
  padding: calc(var(--header-height) + 70px) 0 88px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(18, 13, 10, 0.2), rgba(18, 13, 10, 0.74)),
    radial-gradient(circle at 72% 42%, rgba(200, 168, 75, 0.14), transparent 29rem),
    var(--background-deep);
}

.hero::before {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  content: "";
  pointer-events: none;
  opacity: 0.32;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.10'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 160px;
  content: "";
  background: linear-gradient(transparent, var(--background));
  pointer-events: none;
}

.hero-grid,
.cta-blueprint {
  position: absolute;
  pointer-events: none;
  opacity: 0.13;
  background-image:
    linear-gradient(rgba(200, 168, 75, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 168, 75, 0.42) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(circle, #000, transparent 72%);
  mask-image: radial-gradient(circle, #000, transparent 72%);
}

.hero-grid-left {
  top: 4%;
  left: -7%;
  width: 58vw;
  height: 88%;
  transform: perspective(700px) rotateY(22deg) rotateZ(-3deg);
}

.hero-glow {
  position: absolute;
  top: 25%;
  left: -12rem;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  background: rgba(200, 168, 75, 0.06);
  filter: blur(70px);
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: calc(100svh - var(--header-height) - 158px);
  grid-template-columns: minmax(0, 1.1fr) minmax(430px, 0.9fr);
  gap: 40px;
  align-items: center;
}

.hero-copy {
  padding-top: 30px;
  animation: hero-enter 800ms 80ms both ease-out;
}

.eyebrow {
  display: flex;
  margin-bottom: 24px;
  align-items: center;
  gap: 12px;
}

.eyebrow span {
  color: var(--subtle);
}

.hero h1 {
  max-width: 100%;
  margin-bottom: 30px;
  font-size: clamp(3.3rem, 4.5vw, 4rem);
  letter-spacing: -0.055em;
}

.hero h1 em {
  display: block;
  color: var(--gold-bright);
  font-weight: 400;
}

.hero-lead {
  max-width: 640px;
  margin-bottom: 38px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
}

.hero-actions {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 56px;
  padding: 10px 24px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  gap: 12px;
  line-height: 1.2;
  text-align: left;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  min-width: 190px;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold));
  box-shadow: 0 16px 45px rgba(200, 168, 75, 0.16);
  color: var(--ink);
}

.button-primary:hover {
  background: linear-gradient(135deg, #ead47d, var(--gold-bright));
  box-shadow: 0 18px 55px rgba(200, 168, 75, 0.26);
}

.button-primary svg {
  width: 23px;
  height: 23px;
  fill: currentColor;
}

.button-primary span {
  display: flex;
  flex-direction: column;
  font-size: 1rem;
}

.button-primary small {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(245, 237, 212, 0.025);
  color: var(--cream);
}

.button-secondary:hover {
  border-color: var(--gold);
  background: rgba(200, 168, 75, 0.07);
}

.platform-note {
  margin: 14px 0 0;
  color: var(--subtle);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.platform-note span {
  margin-inline: 5px;
  color: var(--gold-dark);
}

.hero-visual {
  position: relative;
  height: min(680px, 71vh);
  animation: hero-visual-enter 900ms 220ms both ease-out;
}

.blueprint-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 630px;
  height: 630px;
  border: 1px solid rgba(200, 168, 75, 0.13);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.blueprint-ring::before,
.blueprint-ring::after {
  position: absolute;
  top: 50%;
  left: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.blueprint-ring::before {
  width: 78%;
  height: 78%;
  border: 1px dashed rgba(200, 168, 75, 0.13);
  border-radius: 50%;
}

.blueprint-ring::after {
  width: 112%;
  height: 1px;
  background: rgba(200, 168, 75, 0.1);
}

.phone {
  position: absolute;
  margin: 0;
  overflow: hidden;
  border: 6px solid #2d2723;
  border-radius: 38px;
  background: var(--ink);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 255, 255, 0.13);
}

.phone::before {
  position: absolute;
  z-index: 3;
  top: 9px;
  left: 50%;
  width: 31%;
  height: 19px;
  border-radius: 20px;
  content: "";
  background: #070504;
  transform: translateX(-50%);
}

.phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-main {
  z-index: 2;
  top: 0;
  left: 50%;
  width: min(292px, 42%);
  aspect-ratio: 1206 / 2622;
  transform: translateX(-50%) rotate(-1.5deg);
}

.phone-back {
  z-index: 1;
  top: 11%;
  width: min(242px, 36%);
  aspect-ratio: 1206 / 2622;
  opacity: 0.65;
  filter: saturate(0.8);
}

.phone-left {
  left: 2%;
  transform: rotate(-8deg);
}

.phone-right {
  right: 2%;
  transform: rotate(8deg);
}

.hero-app-icon {
  position: absolute;
  z-index: 4;
  right: 9%;
  bottom: 1%;
  width: 96px;
  height: 96px;
  border: 1px solid rgba(200, 168, 75, 0.35);
  border-radius: 22px;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.6);
}

.scroll-cue {
  position: absolute;
  z-index: 4;
  bottom: 32px;
  left: 50%;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  transform: translateX(-50%);
}

.scroll-cue span {
  display: block;
  width: 17px;
  height: 17px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  animation: cue 1.8s infinite ease-in-out;
}

.intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: clamp(70px, 10vw, 140px);
  align-items: center;
}

.intro-copy > p:last-child {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--muted);
}

.ledger-card {
  position: relative;
  padding: 31px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 3px;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(200, 168, 75, 0.055) 40px),
    #e6d9b8;
  box-shadow: 18px 18px 0 rgba(53, 40, 32, 0.8), 0 30px 80px rgba(0, 0, 0, 0.22);
  color: #36291f;
  transform: rotate(1.3deg);
}

.ledger-card::before {
  position: absolute;
  top: 10px;
  right: 10px;
  bottom: 10px;
  left: 10px;
  border: 1px solid rgba(54, 41, 31, 0.2);
  content: "";
  pointer-events: none;
}

.ledger-head {
  display: flex;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(54, 41, 31, 0.55);
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ledger-card dl {
  margin: 24px 0 70px;
}

.ledger-card dl > div {
  display: grid;
  padding: 10px 0;
  border-bottom: 1px solid rgba(54, 41, 31, 0.18);
  grid-template-columns: 0.8fr 1.2fr;
  gap: 10px;
}

.ledger-card dt {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
}

.ledger-card dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-align: right;
}

.ledger-stamp {
  position: absolute;
  right: 28px;
  bottom: 24px;
  padding: 8px 16px;
  border: 3px double rgba(115, 48, 38, 0.62);
  color: rgba(115, 48, 38, 0.7);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.35;
  text-align: center;
  text-transform: uppercase;
  transform: rotate(-7deg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  position: relative;
  min-height: 460px;
  padding: 36px 32px 31px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.025), transparent 48%),
    var(--surface);
  transition: transform 230ms ease, border-color 230ms ease, background 230ms ease;
}

.feature-card::after {
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(200, 168, 75, 0.08);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 20px rgba(200, 168, 75, 0.025), 0 0 0 44px rgba(200, 168, 75, 0.018);
}

.feature-card:hover {
  border-color: rgba(200, 168, 75, 0.38);
  background-color: var(--card);
  transform: translateY(-6px);
}

.feature-icon {
  display: grid;
  width: 70px;
  height: 70px;
  margin-bottom: 30px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(200, 168, 75, 0.055);
  place-items: center;
}

.feature-icon svg {
  width: 42px;
  height: 42px;
  fill: none;
  stroke: var(--gold-bright);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.feature-card h3 {
  margin-bottom: 16px;
  color: var(--cream);
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 600;
}

.feature-card > p {
  color: var(--muted);
  line-height: 1.65;
}

.feature-card ul,
.check-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.feature-card li,
.check-list li {
  position: relative;
  padding: 7px 0 7px 22px;
  color: var(--muted);
  font-size: 0.86rem;
}

.feature-card li::before,
.check-list li::before {
  position: absolute;
  top: 14px;
  left: 0;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold);
  content: "";
  transform: rotate(45deg);
}

.progress-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 50%, rgba(200, 168, 75, 0.08), transparent 32rem),
    var(--card);
}

.progress-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(500px, 1.15fr);
  gap: clamp(65px, 9vw, 125px);
  align-items: center;
}

.progress-copy > p:not(.section-kicker) {
  color: var(--muted);
}

.era-track {
  position: relative;
  display: grid;
  min-height: 590px;
  align-content: space-between;
  gap: 34px;
}

.era-track::before {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 13px;
  border-left: 1px solid var(--line);
  content: "";
}

.era-line {
  position: absolute;
  top: 11px;
  bottom: 11px;
  left: 9px;
  width: 9px;
  overflow: hidden;
  border-radius: 10px;
  background: rgba(18, 13, 10, 0.4);
}

.era-line span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(var(--gold), var(--green));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.4s 200ms ease-out;
}

.era-track.is-visible .era-line span {
  transform: scaleY(1);
}

.era-track article {
  position: relative;
  padding: 24px 25px 24px 58px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: rgba(18, 13, 10, 0.3);
}

.era-track article::before {
  position: absolute;
  top: 31px;
  left: 7px;
  width: 13px;
  height: 13px;
  border: 3px solid var(--card);
  border-radius: 50%;
  content: "";
  background: var(--gold);
  box-shadow: 0 0 0 1px var(--gold);
  transform: translateX(-50%);
}

.era-track time,
.era-marker {
  display: block;
  margin-bottom: 7px;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.era-track h3 {
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 1.5rem;
}

.era-track p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.gallery-item {
  min-width: 0;
  margin: 0;
  grid-column: span 1;
}

.gallery-item-large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-item-wide {
  grid-column: span 2;
}

.gallery-item button {
  position: relative;
  display: block;
  width: 100%;
  height: 430px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--surface);
  cursor: zoom-in;
}

.gallery-item-large button {
  height: 900px;
}

.gallery-item-wide button {
  height: 430px;
}

.gallery-item picture,
.gallery-item img {
  width: 100%;
  height: 100%;
}

.gallery-item img {
  object-fit: cover;
  object-position: top center;
  transition: transform 450ms ease, filter 450ms ease;
}

.gallery-item button::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 24%;
  content: "";
  background: linear-gradient(transparent, rgba(18, 13, 10, 0.82));
  pointer-events: none;
}

.gallery-item button:hover img,
.gallery-item button:focus-visible img {
  filter: brightness(1.07);
  transform: scale(1.025);
}

.zoom-icon {
  position: absolute;
  z-index: 2;
  right: 16px;
  bottom: 16px;
  display: grid;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(245, 237, 212, 0.27);
  border-radius: 50%;
  background: rgba(18, 13, 10, 0.76);
  color: var(--gold-bright);
  font-size: 1.25rem;
  font-weight: 300;
  place-items: center;
}

.gallery-item figcaption {
  padding: 16px 3px 25px;
}

.gallery-item figcaption span {
  display: block;
  margin-bottom: 3px;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.gallery-item figcaption strong {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 500;
}

.systems {
  background:
    radial-gradient(circle at center, rgba(200, 168, 75, 0.06), transparent 31rem),
    var(--background);
}

.systems-map {
  position: relative;
  min-height: 720px;
}

.systems-map::before,
.systems-map::after {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px dashed rgba(200, 168, 75, 0.13);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.systems-map::before {
  width: 520px;
  height: 520px;
}

.systems-map::after {
  width: 340px;
  height: 340px;
}

.systems-core {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: flex;
  width: 210px;
  height: 210px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold-dark);
  border-radius: 50%;
  background: var(--surface);
  box-shadow: 0 0 0 14px rgba(200, 168, 75, 0.025), var(--shadow);
  flex-direction: column;
  transform: translate(-50%, -50%);
}

.systems-core span {
  color: var(--gold);
  font-family: var(--serif);
  font-size: 2.7rem;
  line-height: 1;
}

.systems-core strong {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-align: center;
  text-transform: uppercase;
}

.systems-map ul {
  position: relative;
  height: 720px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.systems-map li {
  position: absolute;
  width: min(310px, 28%);
  padding: 23px 25px;
  border: 1px solid var(--line-soft);
  border-radius: 11px;
  background: var(--surface);
}

.systems-map li::before {
  position: absolute;
  top: 30px;
  width: clamp(35px, 6vw, 90px);
  height: 1px;
  content: "";
  background: linear-gradient(90deg, var(--line), transparent);
}

.systems-map li:nth-child(odd)::before { right: calc(clamp(35px, 6vw, 90px) * -1); }
.systems-map li:nth-child(even)::before { left: calc(clamp(35px, 6vw, 90px) * -1); transform: rotate(180deg); }

.systems-map li:nth-child(1) { top: 20px; left: 7%; }
.systems-map li:nth-child(2) { top: 20px; right: 7%; }
.systems-map li:nth-child(3) { top: 274px; left: 0; }
.systems-map li:nth-child(4) { top: 274px; right: 0; }
.systems-map li:nth-child(5) { bottom: 20px; left: 7%; }
.systems-map li:nth-child(6) { right: 7%; bottom: 20px; }

.systems-map li span {
  color: var(--gold-bright);
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
}

.systems-map li p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.cta-section {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 25% 40%, rgba(200, 168, 75, 0.13), transparent 28rem),
    var(--background-deep);
}

.cta-blueprint {
  top: -20%;
  left: -7%;
  width: 65%;
  height: 145%;
  transform: rotate(-8deg);
}

.cta-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(330px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(70px, 10vw, 140px);
  align-items: center;
}

.cta-phone {
  position: relative;
  height: 610px;
}

.phone-cta {
  top: 0;
  left: 50%;
  width: 285px;
  height: 620px;
  transform: translateX(-50%) rotate(2.5deg);
}

.cta-copy {
  max-width: 680px;
}

.cta-copy > img {
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.35);
}

.cta-copy > p:not(.section-kicker, .platform-note, .store-status) {
  max-width: 600px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 1.08rem;
}

.cta-copy .button {
  min-width: 215px;
}

.store-status {
  min-height: 1.5em;
  margin: 12px 0 0;
  color: var(--gold-bright);
  font-size: 0.78rem;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(55px, 9vw, 120px);
}

.faq-heading {
  position: sticky;
  top: calc(var(--header-height) + 38px);
  align-self: start;
}

.faq-heading p:last-child {
  color: var(--muted);
}

.accordion {
  border-top: 1px solid var(--line);
}

.accordion details {
  border-bottom: 1px solid var(--line);
}

.accordion summary {
  display: flex;
  min-height: 78px;
  padding: 22px 2px;
  align-items: center;
  justify-content: space-between;
  color: var(--cream);
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 600;
  gap: 24px;
  list-style: none;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary span {
  position: relative;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
}

.accordion summary span::before,
.accordion summary span::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 1px;
  content: "";
  background: var(--gold);
  transition: transform 180ms ease;
  transform: translate(-50%, -50%);
}

.accordion summary span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion details[open] summary span::after {
  transform: translate(-50%, -50%) rotate(0);
}

.accordion details p {
  max-width: 690px;
  padding: 0 48px 27px 2px;
  margin: 0;
  color: var(--muted);
}

.site-footer {
  padding: 65px 0 24px;
  background: #0d0907;
}

.footer-main {
  display: grid;
  padding-bottom: 54px;
  border-bottom: 1px solid var(--line-soft);
  grid-template-columns: 1fr 1fr auto;
  gap: 40px;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-brand img {
  border: 1px solid var(--line);
  border-radius: 12px;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  font-family: var(--serif);
  font-size: 1.25rem;
}

.footer-brand span {
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.67rem;
  letter-spacing: 0.14em;
}

.footer-main > p {
  margin: 0;
  color: var(--subtle);
  font-size: 0.83rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--cream);
}

.footer-links small {
  color: var(--gold-dark);
  font-size: 0.62rem;
}

.footer-bottom {
  display: flex;
  padding-top: 22px;
  justify-content: space-between;
  color: var(--subtle);
  font-size: 0.69rem;
}

.lightbox {
  width: min(96vw, 1180px);
  height: min(94svh, 1000px);
  max-width: none;
  max-height: none;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #0d0907;
  color: var(--cream);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.76);
}

.lightbox[open] {
  display: grid;
  grid-template-columns: 80px 1fr 80px;
  grid-template-rows: 60px 1fr;
}

.lightbox::backdrop {
  background: rgba(8, 5, 4, 0.88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.lightbox-toolbar {
  z-index: 2;
  display: flex;
  padding: 0 15px 0 24px;
  border-bottom: 1px solid var(--line-soft);
  align-items: center;
  justify-content: space-between;
  grid-column: 1 / -1;
}

.lightbox-toolbar p {
  margin: 0;
  color: var(--subtle);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.lightbox-close,
.lightbox-nav {
  border: 1px solid var(--line-soft);
  background: rgba(245, 237, 212, 0.025);
  color: var(--cream);
  cursor: pointer;
}

.lightbox-close {
  display: grid;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  font-size: 1.6rem;
  font-weight: 300;
  line-height: 1;
  place-items: center;
}

.lightbox-nav {
  margin: 14px;
  border-radius: 10px;
  font-size: 2.3rem;
}

.lightbox-nav:hover,
.lightbox-close:hover {
  border-color: var(--gold);
  color: var(--gold-bright);
}

.lightbox figure {
  display: grid;
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 20px;
  grid-template-rows: minmax(0, 1fr) auto;
}

.lightbox figure img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
}

.lightbox figcaption {
  padding-top: 14px;
  color: var(--muted);
  font-size: 0.83rem;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes hero-enter {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes hero-visual-enter {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes cue {
  0%, 100% { opacity: 0.35; transform: translateY(-4px) rotate(45deg); }
  50% { opacity: 1; transform: translateY(4px) rotate(45deg); }
}

@media (max-width: 1100px) {
  .hero-layout {
    grid-template-columns: minmax(0, 0.95fr) minmax(430px, 1.05fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .progress-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(410px, 1.1fr);
  }

  .gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .gallery-item-large {
    grid-column: span 2;
  }

  .gallery-item-wide {
    grid-column: span 1;
  }

  .systems-map li {
    width: 30%;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    max-height: 0;
    padding: 0 24px;
    overflow: hidden;
    border-bottom: 1px solid transparent;
    background: rgba(18, 13, 10, 0.98);
    gap: 0;
    opacity: 0;
    transition: max-height 300ms ease, padding 300ms ease, opacity 200ms ease, border-color 200ms ease;
  }

  .nav-links.is-open {
    max-height: calc(100svh - var(--header-height));
    padding-block: 12px 24px;
    border-color: var(--line-soft);
    opacity: 1;
  }

  .nav-links a,
  .nav-links .nav-cta {
    display: flex;
    min-height: 54px;
    padding: 12px 0;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    align-items: center;
    color: var(--cream);
    font-family: var(--serif);
    font-size: 1.12rem;
  }

  .nav-links a::after {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 70px);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-copy {
    display: flex;
    align-items: center;
    flex-direction: column;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    width: min(620px, 100%);
    height: 620px;
    margin: 25px auto 0;
  }

  .scroll-cue {
    display: none;
  }

  .intro-layout,
  .progress-layout,
  .cta-layout,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .intro-layout {
    gap: 65px;
  }

  .ledger-card {
    width: min(560px, calc(100% - 18px));
    margin-inline: auto;
  }

  .progress-layout {
    gap: 60px;
  }

  .progress-copy {
    max-width: 700px;
  }

  .gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gallery-item-large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .gallery-item-large button,
  .gallery-item button,
  .gallery-item-wide button {
    height: 570px;
  }

  .systems-map {
    min-height: auto;
  }

  .systems-map::before,
  .systems-map::after,
  .systems-core,
  .systems-map li::before {
    display: none;
  }

  .systems-map ul {
    display: grid;
    height: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .systems-map li,
  .systems-map li:nth-child(n) {
    position: static;
    width: auto;
  }

  .cta-layout {
    gap: 40px;
  }

  .cta-phone {
    display: none;
  }

  .cta-copy {
    max-width: 720px;
    text-align: center;
  }

  .cta-copy > img {
    margin-inline: auto;
  }

  .cta-copy > p:not(.section-kicker, .platform-note, .store-status) {
    margin-inline: auto;
  }

  .faq-heading {
    position: static;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-links {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  :root {
    --shell: min(100% - 32px, 1180px);
  }

  body {
    font-size: 15px;
  }

  .section {
    padding-block: 82px;
  }

  h2 {
    font-size: clamp(2.25rem, 11vw, 3.25rem);
  }

  .brand {
    font-size: 0.82rem;
    letter-spacing: 0.08em;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .hero {
    padding-top: calc(var(--header-height) + 48px);
    padding-bottom: 55px;
  }

  .eyebrow {
    font-size: 0.62rem;
    letter-spacing: 0.12em;
  }

  .hero h1 {
    font-size: clamp(3rem, 15vw, 4.4rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-visual {
    height: 470px;
    margin-top: 20px;
  }

  .blueprint-ring {
    width: 450px;
    height: 450px;
  }

  .phone {
    border-width: 4px;
    border-radius: 26px;
  }

  .phone::before {
    top: 7px;
    height: 12px;
  }

  .phone-main {
    width: 45%;
  }

  .phone-back {
    width: 36%;
  }

  .hero-app-icon {
    right: 3%;
    width: 70px;
    height: 70px;
    border-radius: 16px;
  }

  .ledger-card {
    padding: 26px 24px;
  }

  .feature-grid,
  .gallery,
  .systems-map ul {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
  }

  .gallery-item,
  .gallery-item-large,
  .gallery-item-wide {
    grid-column: auto;
  }

  .gallery-item button,
  .gallery-item-large button,
  .gallery-item-wide button {
    height: min(144vw, 680px);
  }

  .era-track {
    min-height: auto;
  }

  .era-track article {
    padding-left: 43px;
  }

  .systems-map li {
    padding: 22px;
  }

  .cta-copy .button {
    width: 100%;
  }

  .accordion summary {
    min-height: 72px;
    font-size: 1.05rem;
  }

  .accordion details p {
    padding-right: 8px;
  }

  .footer-main,
  .footer-bottom {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-main {
    gap: 26px;
  }

  .footer-bottom {
    gap: 8px;
  }

  .lightbox[open] {
    grid-template-columns: 52px 1fr 52px;
  }

  .lightbox-nav {
    margin: 6px;
  }

  .lightbox figure {
    padding: 10px 2px 14px;
  }

  .lightbox figcaption {
    padding-inline: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .era-line span {
    transform: scaleY(1);
  }
}