:root {
  --bg: #f5f8fc;
  --bg-strong: #edf3fa;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(73, 104, 138, 0.14);
  --line-strong: rgba(73, 104, 138, 0.28);
  --text: #0f1f35;
  --muted: rgba(15, 31, 53, 0.68);
  --soft: rgba(15, 31, 53, 0.45);
  --sky: #8ad8ff;
  --ice: #dff6ff;
  --mint: #7ef2d0;
  --silver: #c7d5e6;
  --shadow: 0 30px 80px rgba(55, 86, 124, 0.12);
  --max-width: 1360px;
  --transition: 280ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 10%, rgba(138, 216, 255, 0.32), transparent 22%),
    radial-gradient(circle at 84% 12%, rgba(126, 242, 208, 0.2), transparent 18%),
    linear-gradient(180deg, #f9fbfe 0%, #f4f8fc 38%, #eff5fb 100%);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

svg {
  width: 1em;
  height: 1em;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
}

.page-shell {
  position: relative;
  min-height: 100vh;
}

.ambient,
.light-grid,
.hero-wash {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.cursor-aura {
  position: fixed;
  z-index: -2;
  width: 24rem;
  height: 24rem;
  margin-left: -12rem;
  margin-top: -12rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(138, 216, 255, 0.22), rgba(138, 216, 255, 0.08) 42%, transparent 72%);
  filter: blur(22px);
  opacity: 0;
  pointer-events: none;
}

.ambient {
  z-index: -4;
  filter: blur(80px);
}

.ambient-a {
  background: radial-gradient(circle at 20% 18%, rgba(138, 216, 255, 0.26), transparent 24%);
}

.ambient-b {
  background: radial-gradient(circle at 82% 26%, rgba(126, 242, 208, 0.18), transparent 22%);
}

.light-grid {
  z-index: -5;
  background-image:
    linear-gradient(rgba(73, 104, 138, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(73, 104, 138, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 88%);
}

.hero-wash {
  z-index: -3;
  background:
    radial-gradient(circle at 55% 26%, rgba(255, 255, 255, 0.86), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.44), transparent 54%);
}

.site-header,
.section {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  backdrop-filter: blur(14px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}

.brand-logo {
  width: 2.6rem;
  height: 2.6rem;
  display: block;
}

.brand-copy {
  display: grid;
  gap: 0.08rem;
}

.brand-copy strong,
.hero-token,
.eyebrow {
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 700;
}

.brand-copy small,
.header-link,
.infra-block p,
.model-statement p,
.rail-item p {
  color: var(--muted);
}

.brand-copy small {
  font-size: 0.72rem;
}

.header-actions,
.lang-toggle,
.hero-actions {
  display: flex;
  align-items: center;
}

.header-actions {
  gap: 1rem;
}

.header-link {
  position: relative;
  font-size: 0.88rem;
  transition: color var(--transition);
}

.header-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sky), transparent);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.header-link:hover {
  color: var(--text);
}

.header-link:hover::after {
  transform: scaleX(1);
}

.lang-toggle {
  gap: 0.24rem;
  padding: 0.18rem;
  border: 1px solid rgba(73, 104, 138, 0.14);
  background: rgba(255, 255, 255, 0.58);
}

.lang-button {
  border: 0;
  padding: 0.45rem 0.76rem;
  background: transparent;
  color: var(--soft);
  cursor: pointer;
}

.lang-button.active {
  background: linear-gradient(135deg, rgba(138, 216, 255, 0.34), rgba(126, 242, 208, 0.3));
  color: var(--text);
}

.hero {
  position: relative;
  padding: 2rem 0 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 0.92fr);
  gap: 2rem;
  align-items: center;
  width: min(calc(100% - 2rem), 1500px);
  margin: 0 auto;
  min-height: calc(100svh - 6.5rem);
}

.hero-copy {
  max-width: 35rem;
  padding: 3rem 0 4rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: #5d7ca0;
  font-size: 0.74rem;
  font-weight: 800;
}

.hero-token {
  margin: 0 0 1rem;
  color: rgba(15, 31, 53, 0.46);
  font-size: 0.8rem;
  font-weight: 700;
}

.hero h1,
.section h2 {
  margin: 0;
  font-family: "DM Serif Display", serif;
  font-weight: 400;
  letter-spacing: -0.04em;
}

.hero h1 {
  max-width: 8ch;
  font-size: clamp(4rem, 8.4vw, 8rem);
  line-height: 0.9;
}

.hero-lead {
  max-width: 29rem;
  margin: 1.35rem 0 0;
  font-size: clamp(1.1rem, 2vw, 1.42rem);
  line-height: 1.55;
}

.hero-body {
  max-width: 30rem;
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.hero-actions {
  gap: 0.9rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 3.35rem;
  padding: 0.92rem 1.3rem;
  border: 1px solid transparent;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition),
    color var(--transition);
}

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

.button-primary {
  background: linear-gradient(135deg, #b6e8ff, #93ffe3);
  color: #0b2035;
  box-shadow: 0 18px 40px rgba(138, 216, 255, 0.22);
}

.button-secondary {
  border-color: rgba(73, 104, 138, 0.18);
  background: rgba(255, 255, 255, 0.46);
}

.hero-stage {
  position: relative;
  min-height: 44rem;
  display: grid;
  place-items: center;
}

.stage-shell {
  position: relative;
  width: min(42rem, 92%);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.24) 52%, rgba(255, 255, 255, 0.1) 70%, transparent 76%);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: inset 0 0 0 1px rgba(73, 104, 138, 0.08), var(--shadow);
  overflow: hidden;
}

.stage-shell::before,
.stage-shell::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.72);
  opacity: 0.7;
}

.stage-shell::after {
  inset: 16%;
  border-style: dashed;
  opacity: 0.45;
}

.stage-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(73, 104, 138, 0.14);
}

.ring-a {
  width: 36rem;
  height: 36rem;
  animation: spin 18s linear infinite;
}

.ring-b {
  width: 44rem;
  height: 44rem;
  border-style: dashed;
  animation: spinReverse 28s linear infinite;
}

.stage-core,
.stage-panel {
  position: absolute;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.stage-glow {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(138, 216, 255, 0.16), rgba(126, 242, 208, 0.08) 45%, transparent 72%);
  filter: blur(30px);
  pointer-events: none;
}

.stage-core {
  inset: 26% 26%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.65rem;
  text-align: center;
  border-radius: 50%;
}

.stage-logo {
  width: 4.8rem;
  height: 4.8rem;
}

.stage-core p,
.stage-panel span {
  margin: 0;
  color: var(--soft);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stage-core strong,
.stage-panel strong {
  font-family: "DM Serif Display", serif;
  font-weight: 400;
  color: var(--text);
}

.stage-core strong {
  font-size: clamp(4rem, 7vw, 6rem);
  line-height: 0.9;
}

.stage-core span {
  color: var(--muted);
}

.stage-panel {
  min-width: 13rem;
  padding: 1rem 1.15rem;
  border-radius: 1.6rem;
}

.stage-panel strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 2rem;
  line-height: 1;
}

.panel-a {
  top: 10%;
  left: 4%;
}

.panel-b {
  top: 20%;
  right: 2%;
}

.panel-c {
  bottom: 10%;
  left: 10%;
}

.hero-marquee {
  overflow: hidden;
  margin-top: -2rem;
  border-top: 1px solid rgba(73, 104, 138, 0.1);
  border-bottom: 1px solid rgba(73, 104, 138, 0.1);
  background: rgba(255, 255, 255, 0.38);
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 2.4rem;
  padding: 0.8rem 0;
  color: var(--soft);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  animation: marqueeMove 26s linear infinite;
}

.section {
  padding: 8rem 0;
}

.section-kicker,
.infra-header,
.faq-head {
  max-width: 44rem;
  margin-bottom: 2.4rem;
}

.section-kicker h2,
.infra-header h2,
.reserve-copy h2,
.manifesto-left h2,
.faq-head h2,
.site-footer h2 {
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 0.95;
}

.section-kicker p:last-child,
.infra-header p:last-child,
.reserve-copy p:last-child,
.manifesto-right p,
.footer-copy p,
.footer-meta,
.faq-item p,
.roadmap-step p {
  color: var(--muted);
}

.model-layout,
.reserve-strip,
.manifesto-band,
.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: start;
}

.model-statement,
.rail-item,
.infra-block,
.ledger-row,
.faq-item,
.roadmap-step {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.model-statement {
  min-height: 21rem;
  padding: 2rem;
  display: flex;
  align-items: flex-end;
}

.model-statement p {
  margin: 0;
  font-size: clamp(1.16rem, 2vw, 1.5rem);
  line-height: 1.6;
}

.model-rails,
.infra-columns,
.faq-list {
  display: grid;
  gap: 1rem;
}

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

.rail-item,
.infra-block,
.roadmap-step,
.ledger-row,
.faq-item {
  padding: 1.4rem;
}

.rail-icon {
  display: inline-grid;
  place-items: center;
  width: 3.8rem;
  height: 3.8rem;
  margin-bottom: 1.1rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(182, 232, 255, 0.52), rgba(147, 255, 227, 0.4));
}

.rail-icon svg {
  width: 1.75rem;
  height: 1.75rem;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  color: #3e6c95;
}

.rail-item h3,
.infra-block h3,
.roadmap-step h3,
.faq-item summary {
  margin: 0;
  font-size: 1.12rem;
}

.rail-item p,
.infra-block p,
.roadmap-step p,
.faq-item p {
  margin: 0.8rem 0 0;
  line-height: 1.75;
}

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

.reserve-copy {
  max-width: 34rem;
}

.reserve-ledger {
  position: relative;
  display: grid;
  gap: 1rem;
  padding-left: 2rem;
}

.ledger-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.65rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(138, 216, 255, 0.18), rgba(73, 104, 138, 0.16));
  transform: scaleY(0);
  transform-origin: top center;
}

.ledger-row {
  position: relative;
}

.ledger-row::before {
  content: "";
  position: absolute;
  top: 1.6rem;
  left: -1.7rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky), var(--mint));
  box-shadow: 0 0 0 8px rgba(182, 232, 255, 0.18);
}

.ledger-row span {
  color: var(--soft);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ledger-row strong {
  display: block;
  margin-top: 0.35rem;
  font-family: "DM Serif Display", serif;
  font-weight: 400;
  font-size: clamp(2.1rem, 3.2vw, 3rem);
}

.ledger-row p {
  margin: 0.7rem 0 0;
}

.manifesto-right {
  padding-top: 4rem;
}

.manifesto-right p {
  margin: 0;
  font-size: clamp(1.16rem, 2vw, 1.52rem);
  line-height: 1.7;
}

.roadmap-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.roadmap-step {
  min-height: 17rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.roadmap-icon {
  display: inline-grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  margin-bottom: 1.2rem;
  border-radius: 1.2rem;
  background: linear-gradient(135deg, rgba(182, 232, 255, 0.58), rgba(147, 255, 227, 0.42));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.roadmap-icon svg {
  width: 1.8rem;
  height: 1.8rem;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  color: #34638e;
}

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

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary b {
  flex-shrink: 0;
  padding: 0.35rem 0.6rem;
  border: 1px solid rgba(73, 104, 138, 0.16);
  color: #4b6d92;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.72);
}

.faq-item[open] summary b {
  background: linear-gradient(135deg, rgba(182, 232, 255, 0.52), rgba(147, 255, 227, 0.34));
  color: var(--text);
}

.faq-item {
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.faq-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 44px rgba(55, 86, 124, 0.14);
}

.faq-item[open] {
  border-color: rgba(73, 104, 138, 0.22);
  box-shadow: 0 28px 56px rgba(55, 86, 124, 0.16);
}

.faq-item p {
  padding-right: 1rem;
}

.site-footer {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 0 0 3rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand h2 {
  margin-top: 0.25rem;
}

.footer-copy {
  max-width: 32rem;
}

.footer-links,
.footer-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  margin-top: 1rem;
}

.footer-links a {
  position: relative;
}

.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.28rem;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sky), transparent);
  transform: scaleX(0);
  transition: transform var(--transition);
}

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

.reveal {
  opacity: 0;
  transform: translateY(40px);
}

@keyframes marqueeMove {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes spinReverse {
  from {
    transform: rotate(360deg);
  }
  to {
    transform: rotate(0deg);
  }
}

@media (max-width: 1180px) {
  .hero-inner,
  .model-layout,
  .reserve-strip,
  .manifesto-band,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .model-rails,
  .roadmap-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-stage {
    min-height: 38rem;
  }
}

@media (max-width: 780px) {
  .site-header,
  .section,
  .site-footer {
    width: min(calc(100% - 1.2rem), var(--max-width));
  }

  .site-header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .hero {
    padding-top: 1rem;
  }

  .hero-inner {
    width: min(calc(100% - 1.2rem), 1500px);
    min-height: auto;
  }

  .hero-copy {
    padding: 1rem 0 0;
  }

  .hero h1 {
    font-size: clamp(3.5rem, 15vw, 5.6rem);
  }

  .hero-stage {
    min-height: 30rem;
  }

  .stage-shell {
    width: min(25rem, 100%);
  }

  .stage-panel {
    min-width: 10rem;
    padding: 0.9rem 1rem;
  }

  .panel-a {
    top: 6%;
    left: 0;
  }

  .panel-b {
    top: 14%;
    right: 0;
  }

  .panel-c {
    bottom: 6%;
    left: 6%;
  }

  .model-rails,
  .infra-columns,
  .roadmap-flow,
  .faq-list {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 5rem 0;
  }
}