:root {
  color-scheme: dark;
  --black: #050403;
  --carbon: #0b0a08;
  --panel: #11100e;
  --copper: #c87538;
  --copper-light: #e3a15f;
  --ivory: #ded7ce;
  --ash: #aaa49d;
  --line: rgba(255, 255, 255, 0.11);
  --shell: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--black);
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% 0%, rgba(200, 117, 56, 0.08), transparent 34rem),
    var(--black);
  color: var(--ivory);
  font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  z-index: 20;
  inset: 0;
  border: 1px solid rgba(200, 117, 56, 0.08);
  pointer-events: none;
  content: "";
}

a {
  color: inherit;
}

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

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin-inline: auto;
}

.narrow {
  width: min(calc(100% - 48px), 820px);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 100svh;
  overflow: hidden;
}

.hero__video,
.section__video {
  position: absolute;
  z-index: -3;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__video {
  opacity: 0.82;
  filter: brightness(1.14) contrast(1.04) saturate(0.92);
}

.hero__scrim {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 4, 3, 0.68), rgba(5, 4, 3, 0.22) 55%, rgba(5, 4, 3, 0.52)),
    linear-gradient(180deg, rgba(5, 4, 3, 0.08), rgba(5, 4, 3, 0.24) 72%, rgba(5, 4, 3, 0.86));
}

.nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 104px;
}

.brand-mark {
  grid-column: 2;
  width: 118px;
  height: 76px;
}

.brand-mark img,
.footer__brand img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.92;
  filter:
    drop-shadow(0 0 2px rgba(200, 117, 56, 0.45))
    drop-shadow(0 0 8px rgba(200, 117, 56, 0.18));
  transition: filter 1.8s ease;
}

.brand-mark:hover img,
.footer__brand img:hover {
  filter:
    drop-shadow(0 0 4px rgba(200, 117, 56, 0.65))
    drop-shadow(0 0 12px rgba(200, 117, 56, 0.25));
}

.nav__links {
  display: flex;
  grid-column: 3;
  justify-self: end;
  align-items: center;
  gap: 24px;
}

.nav__links a {
  padding: 12px 0;
  color: rgba(222, 215, 206, 0.68);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 240ms ease;
}

.nav__links a:hover {
  color: var(--copper-light);
}

.nav__links .nav__cta {
  padding: 12px 20px;
  border: 1px solid rgba(200, 117, 56, 0.55);
  border-radius: 999px;
  color: var(--copper-light);
}

.hero__content {
  display: flex;
  min-height: calc(100svh - 150px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 72px 0 136px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--copper-light);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.34em;
  line-height: 1.7;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2 {
  margin: 0;
  font-family: Georgia, "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-weight: 400;
}

h1 {
  max-width: 850px;
  font-size: clamp(3.2rem, 7.4vw, 6.8rem);
  line-height: 1.06;
}

h2 {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1.18;
}

.hero__lead {
  margin: 36px 0 0;
  color: rgba(222, 215, 206, 0.76);
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  line-height: 2;
}

.hero__rhythm {
  margin: 28px 0 0;
  color: var(--copper-light);
  font-family: Georgia, "Yu Mincho", serif;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  letter-spacing: 0.1em;
}

.hero__closing {
  margin: 16px 0 0;
  color: var(--ash);
  font-size: 14px;
  letter-spacing: 0.12em;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 44px;
}

.button {
  display: inline-flex;
  min-width: 210px;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  padding: 15px 28px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  transition:
    border-color 240ms ease,
    background 240ms ease,
    color 240ms ease,
    transform 240ms ease;
}

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

.button--primary {
  border-color: var(--copper);
  background: var(--copper);
  color: var(--black);
  box-shadow: 0 0 38px rgba(200, 117, 56, 0.17);
}

.button--primary:hover {
  background: var(--copper-light);
}

.button--quiet:hover {
  border-color: var(--copper);
  color: var(--copper-light);
}

.scroll-cue {
  position: absolute;
  bottom: 30px;
  left: 50%;
  display: grid;
  justify-items: center;
  gap: 9px;
  color: rgba(255, 255, 255, 0.38);
  font-size: 9px;
  letter-spacing: 0.28em;
  text-decoration: none;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.scroll-cue i {
  display: block;
  width: 1px;
  height: 38px;
  background: linear-gradient(var(--copper), transparent);
}

.section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 150px 0;
}

.section--video {
  min-height: 760px;
  display: flex;
  align-items: center;
  text-align: center;
}

.section__video {
  opacity: 0.5;
}

.section__scrim {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 4, 3, 0.88), rgba(5, 4, 3, 0.5), rgba(5, 4, 3, 0.86)),
    linear-gradient(180deg, var(--black), transparent 24%, transparent 76%, var(--black));
}

.statement {
  margin: 42px auto 0;
  color: var(--ivory);
  font-family: Georgia, "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.45rem, 2.5vw, 2.15rem);
  line-height: 1.9;
}

.statement--small {
  font-size: clamp(1.25rem, 2.1vw, 1.75rem);
}

.body-copy {
  max-width: 760px;
  margin: 28px auto 0;
  color: var(--ash);
  font-size: 16px;
  line-height: 2.1;
}

.concept-index {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 64px;
  border-top: 1px solid rgba(200, 117, 56, 0.32);
  border-bottom: 1px solid rgba(200, 117, 56, 0.32);
}

.concept-index span {
  padding: 18px 12px;
  color: rgba(222, 215, 206, 0.58);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.concept-index span + span {
  border-left: 1px solid var(--line);
}

.section-heading {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.section--ingot {
  border-top: 1px solid rgba(200, 117, 56, 0.12);
  border-bottom: 1px solid rgba(200, 117, 56, 0.12);
  background:
    radial-gradient(circle at 27% 52%, rgba(200, 117, 56, 0.1), transparent 26rem),
    #080705;
}

.ingot-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1fr);
  gap: 90px;
  align-items: center;
  margin-top: 82px;
}

.ingot-visual {
  position: relative;
  display: grid;
  min-height: 640px;
  place-items: center;
}

.ingot-visual::before {
  position: absolute;
  width: 72%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(200, 117, 56, 0.12);
  filter: blur(64px);
  content: "";
}

.ingot-visual img {
  position: relative;
  width: min(76%, 370px);
  filter: drop-shadow(0 34px 80px rgba(200, 117, 56, 0.25));
}

.ingot-visual p {
  position: absolute;
  bottom: 20px;
  color: rgba(255, 255, 255, 0.3);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.ingot-visual__line {
  position: absolute;
  left: 50%;
  width: 78%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 117, 56, 0.48), transparent);
  transform: translateX(-50%);
}

.ingot-visual__line--top {
  top: 35px;
}

.ingot-visual__line--bottom {
  bottom: 52px;
}

.ingot-content .statement,
.ingot-content .body-copy {
  margin-inline: 0;
}

.spec-list {
  margin: 58px 0 0;
}

.spec-list div {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: baseline;
  gap: 22px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.spec-list div:last-child {
  border-bottom: 1px solid var(--line);
}

.spec-list dt {
  color: var(--copper-light);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.spec-list dd {
  margin: 0;
  color: var(--ivory);
  font-size: 17px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 38px;
  padding: 12px 0;
  color: var(--copper-light);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.text-link span {
  font-size: 18px;
}

.ingot-purchase {
  width: min(100%, 240px);
  margin-top: 42px;
}

.section--points,
.section--game {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    var(--black);
  background-size: 72px 72px;
}

.feature-layout,
.game-layout,
.buyback-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 100px;
  align-items: center;
}

.feature-copy .body-copy,
.feature-copy .statement {
  margin-inline: 0;
}

.fine-print {
  margin: 28px 0 0;
  color: rgba(222, 215, 206, 0.46);
  font-size: 12px;
  line-height: 1.8;
}

.point-ledger {
  position: relative;
  padding: 34px;
  border: 1px solid rgba(200, 117, 56, 0.28);
  background: rgba(9, 8, 6, 0.8);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.04),
    0 40px 100px rgba(0, 0, 0, 0.38);
}

.point-ledger::before {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.045);
  pointer-events: none;
  content: "";
}

.point-ledger__head,
.point-ledger__foot {
  display: flex;
  justify-content: space-between;
  color: rgba(222, 215, 206, 0.48);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.point-ledger__head span:last-child {
  color: var(--copper-light);
}

.point-ledger__value {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  padding: 65px 0 46px;
}

.point-ledger__value strong {
  font-family: Georgia, serif;
  font-size: clamp(3.8rem, 8vw, 6.7rem);
  font-weight: 400;
  line-height: 1;
}

.point-ledger__value span {
  color: var(--copper-light);
  font-size: 15px;
}

.point-ledger__chart {
  display: grid;
  height: 120px;
  grid-template-columns: repeat(7, 1fr);
  align-items: end;
  gap: 10px;
  padding: 0 10px 24px;
  border-bottom: 1px solid var(--line);
}

.point-ledger__chart i {
  height: var(--height);
  background: linear-gradient(var(--copper-light), rgba(200, 117, 56, 0.18));
}

.point-ledger__foot {
  padding-top: 22px;
}

.point-ledger__foot strong {
  color: var(--ivory);
  font-size: 13px;
}

.section--vault {
  background:
    radial-gradient(circle at 50% 48%, rgba(200, 117, 56, 0.08), transparent 35rem),
    #090806;
}

.vault-console {
  display: grid;
  grid-template-columns: 230px 1fr;
  margin-top: 70px;
  border: 1px solid rgba(200, 117, 56, 0.24);
  background: rgba(5, 4, 3, 0.72);
  box-shadow: 0 45px 120px rgba(0, 0, 0, 0.42);
}

.vault-console__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 48px 24px;
  border-right: 1px solid var(--line);
  background: rgba(200, 117, 56, 0.035);
}

.vault-console__rail img {
  width: 88px;
  opacity: 0.86;
}

.vault-console__rail span {
  color: rgba(222, 215, 206, 0.42);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.vault-console__rail strong {
  color: var(--copper-light);
  font-family: Georgia, serif;
  font-size: 21px;
  font-weight: 400;
}

.vault-console__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.vault-console__grid article {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
}

.vault-console__grid article:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.vault-console__grid article:nth-child(-n + 2) {
  border-bottom: 1px solid var(--line);
}

.vault-console__grid span {
  color: var(--copper-light);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.vault-console__grid strong {
  margin-top: 22px;
  font-family: Georgia, serif;
  font-size: 42px;
  font-weight: 400;
}

.vault-console__grid small {
  margin-top: 12px;
  color: rgba(222, 215, 206, 0.38);
  font-size: 11px;
}

.game-layout {
  grid-template-columns: 0.9fr 1.1fr;
}

.game-stage {
  position: relative;
  display: grid;
  min-height: 560px;
  place-items: center;
}

.game-stage__ring {
  position: absolute;
  width: min(88%, 480px);
  aspect-ratio: 1;
  border: 1px solid rgba(200, 117, 56, 0.32);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px rgba(200, 117, 56, 0.025),
    0 0 0 76px rgba(200, 117, 56, 0.018);
}

.game-stage__ring::before,
.game-stage__ring::after {
  position: absolute;
  background: linear-gradient(transparent, rgba(200, 117, 56, 0.4), transparent);
  content: "";
}

.game-stage__ring::before {
  top: -18%;
  bottom: -18%;
  left: 50%;
  width: 1px;
}

.game-stage__ring::after {
  top: 50%;
  right: -18%;
  left: -18%;
  height: 1px;
}

.game-stage__seal {
  display: grid;
  width: 230px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: radial-gradient(circle, rgba(200, 117, 56, 0.12), rgba(5, 4, 3, 0.8) 62%);
  transform: rotate(45deg);
}

.game-stage__seal img {
  width: 150px;
  transform: rotate(-45deg);
}

.game-stage__label {
  position: absolute;
  bottom: 32px;
  color: rgba(222, 215, 206, 0.4);
  font-size: 9px;
  letter-spacing: 0.24em;
}

.section--buyback {
  border-top: 1px solid rgba(200, 117, 56, 0.15);
  border-bottom: 1px solid rgba(200, 117, 56, 0.15);
  background:
    radial-gradient(circle at 78% 50%, rgba(200, 117, 56, 0.1), transparent 26rem),
    #080705;
}

.buyback-lines {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.2;
  background:
    linear-gradient(120deg, transparent 40%, rgba(200, 117, 56, 0.22) 40.1%, transparent 40.3%),
    linear-gradient(60deg, transparent 65%, rgba(200, 117, 56, 0.16) 65.1%, transparent 65.3%);
}

.buyback-record {
  padding: 42px;
  border-top: 1px solid var(--copper);
  border-bottom: 1px solid rgba(200, 117, 56, 0.28);
  background: rgba(0, 0, 0, 0.22);
}

.buyback-record > p {
  color: var(--copper-light);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.buyback-record ol {
  padding: 0;
  margin: 35px 0;
  list-style: none;
}

.buyback-record li {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  min-height: 72px;
  border-top: 1px solid var(--line);
  color: var(--ivory);
  font-size: 14px;
  letter-spacing: 0.06em;
}

.buyback-record li:last-child {
  border-bottom: 1px solid var(--line);
}

.buyback-record li span {
  color: var(--copper-light);
  font-family: Georgia, serif;
  font-size: 19px;
}

.buyback-record small {
  color: rgba(222, 215, 206, 0.4);
  font-size: 11px;
  line-height: 1.8;
}

.section--start {
  background: var(--black);
}

.steps {
  max-width: 900px;
  padding: 0;
  margin: 72px auto 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 35px;
  align-items: start;
  padding: 38px 0;
  border-top: 1px solid var(--line);
}

.steps li:last-child {
  border-bottom: 1px solid var(--line);
}

.steps > li > span {
  color: var(--copper-light);
  font-family: Georgia, serif;
  font-size: 34px;
}

.steps h3 {
  margin: 2px 0 12px;
  color: var(--ivory);
  font-family: Georgia, "Yu Mincho", serif;
  font-size: 23px;
  font-weight: 400;
}

.steps p {
  margin: 0;
  color: var(--ash);
  font-size: 14px;
  line-height: 1.9;
}

.section--faq {
  padding: 120px 0;
  border-top: 1px solid rgba(200, 117, 56, 0.18);
  background:
    radial-gradient(circle at 50% 100%, rgba(200, 117, 56, 0.1), transparent 30rem),
    #080705;
}

.faq-callout {
  text-align: center;
}

.faq-callout .button {
  margin-top: 36px;
}

.footer {
  padding: 94px 0 34px;
  background: #030302;
}

.footer__inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  align-items: center;
  padding-top: 54px;
  border-top: 1px solid var(--line);
}

.footer__brand {
  text-align: center;
}

.footer__brand img {
  width: 180px;
  height: auto;
  margin: 0 auto 28px;
}

.footer address {
  color: rgba(222, 215, 206, 0.48);
  font-size: 12px;
  font-style: normal;
  line-height: 2;
}

.footer address a {
  color: rgba(222, 215, 206, 0.62);
  text-decoration: none;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 36px;
}

.footer__links a {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.065);
  color: rgba(222, 215, 206, 0.52);
  font-size: 12px;
  text-decoration: none;
  transition: color 220ms ease;
}

.footer__links a:hover {
  color: var(--copper-light);
}

.footer__copyright {
  margin: 70px 0 0;
  color: rgba(222, 215, 206, 0.26);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 900ms ease,
    transform 900ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .nav {
    grid-template-columns: 1fr auto 1fr;
  }

  .brand-mark {
    grid-column: 2;
    justify-self: center;
  }

  .nav__links {
    grid-column: 3;
  }

  .nav__links > a:not(.nav__cta) {
    display: none;
  }

  .ingot-layout,
  .feature-layout,
  .game-layout,
  .buyback-layout,
  .footer__inner {
    grid-template-columns: 1fr;
  }

  .ingot-layout,
  .feature-layout,
  .game-layout,
  .buyback-layout {
    gap: 64px;
  }

  .ingot-visual {
    min-height: 500px;
  }

  .vault-console {
    grid-template-columns: 1fr;
  }

  .vault-console__rail {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .footer__inner {
    gap: 48px;
  }
}

@media (max-width: 620px) {
  .shell,
  .narrow {
    width: min(calc(100% - 40px), var(--shell));
  }

  .hero__video {
    object-position: 54% center;
  }

  .nav {
    min-height: 88px;
  }

  .brand-mark {
    width: 90px;
    height: 62px;
  }

  .nav__links .nav__cta {
    min-height: 44px;
    padding: 12px 18px;
  }

  .hero__content {
    min-height: calc(100svh - 110px);
    padding: 72px 0 120px;
  }

  h1 {
    font-size: clamp(2.75rem, 14vw, 4.1rem);
  }

  .desktop-break {
    display: none;
  }

  .hero__lead {
    max-width: 330px;
    line-height: 1.9;
  }

  .hero__rhythm {
    display: grid;
    max-width: 250px;
    line-height: 2;
  }

  .actions {
    width: 100%;
    flex-direction: column;
  }

  .button {
    width: 100%;
    min-height: 58px;
  }

  .section {
    padding: 108px 0;
  }

  .section--video {
    min-height: 820px;
  }

  .concept-index {
    grid-template-columns: repeat(2, 1fr);
  }

  .concept-index span:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .concept-index span:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .ingot-layout {
    margin-top: 54px;
  }

  .ingot-visual {
    min-height: 430px;
  }

  .spec-list div {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .point-ledger {
    padding: 26px 22px;
  }

  .point-ledger__value {
    padding: 55px 0 40px;
  }

  .point-ledger__chart {
    gap: 7px;
  }

  .vault-console__grid {
    grid-template-columns: 1fr;
  }

  .vault-console__grid article {
    min-height: 168px;
    border-right: 0 !important;
    border-bottom: 1px solid var(--line);
  }

  .game-stage {
    min-height: 420px;
  }

  .game-stage__seal {
    width: 170px;
  }

  .game-stage__seal img {
    width: 110px;
  }

  .buyback-record {
    padding: 32px 22px;
  }

  .steps li {
    grid-template-columns: 58px 1fr;
    gap: 18px;
  }

  .steps > li > span {
    font-size: 25px;
  }

  .steps h3 {
    font-size: 20px;
  }

  .footer__links {
    grid-template-columns: 1fr;
  }

  .footer {
    padding-top: 72px;
  }
}

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

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

}