:root {
  --cyan: #00fcda;
  --navy: #002841;
  --navy-deep: #00182a;
  --fog: #e2e5ec;
  --fog-dim: rgba(226, 229, 236, 0.68);
  --line: rgba(226, 229, 236, 0.14);
  --font-d: "Outfit", system-ui, sans-serif;
  --font-b: "Public Sans", system-ui, sans-serif;
  --mx: 0;
  --my: 0;
  --sy: 0;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--fog);
  background: var(--navy-deep);
  font-family: var(--font-b);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.top {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  background: linear-gradient(180deg, rgba(0, 24, 42, 0.9), transparent);
  pointer-events: none;
}

.top a {
  pointer-events: auto;
  text-decoration: none;
}

.logo {
  font-family: var(--font-d);
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.top-cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.9rem;
}

.top-cta:hover {
  background: var(--cyan);
  color: var(--navy);
}

/* —— Parallax stage —— */
.stage {
  position: relative;
  isolation: isolate;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: radial-gradient(circle at 50% 45%, #013552 0%, var(--navy-deep) 62%);
  perspective: 1200px;
}

.layer {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  will-change: transform;
  transform: translate3d(
      calc(var(--mx) * var(--d, 0) * 1px),
      calc(var(--my) * var(--d, 0) * 1px + var(--sy) * var(--d, 0) * -0.35px),
      0
    )
    rotate(calc(var(--mx) * var(--d, 0) * 0.02deg));
  transition: transform 0.12s linear;
}

.layer-void {
  --d: 0.05;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(0, 252, 218, 0.08), transparent 55%),
    repeating-linear-gradient(
      -12deg,
      transparent 0 18px,
      rgba(226, 229, 236, 0.03) 18px 19px
    );
}

.layer-glow {
  --d: 0.12;
  background: radial-gradient(circle at 58% 42%, rgba(0, 252, 218, 0.22), transparent 28%);
  filter: blur(2px);
}

.layer-ring {
  --d: 0.22;
}

.layer-ring::before {
  content: "";
  width: min(72vw, 520px);
  aspect-ratio: 1;
  border: 1px solid rgba(0, 252, 218, 0.35);
  border-radius: 50%;
  box-shadow:
    0 0 0 18px rgba(0, 252, 218, 0.04),
    inset 0 0 40px rgba(0, 252, 218, 0.06);
}

.layer-key-shadow {
  --d: 0.35;
  opacity: 0.35;
  filter: blur(18px) saturate(0.8);
}

.layer-key-shadow img {
  width: min(58vw, 420px);
  height: auto;
  transform: translate(18px, 28px) scale(1.05);
}

.layer-key {
  --d: 0.55;
}

.layer-key img {
  width: min(56vw, 400px);
  height: auto;
  filter: drop-shadow(0 28px 40px rgba(0, 0, 0, 0.55)) drop-shadow(0 0 28px rgba(0, 252, 218, 0.25));
  animation: floaty 5.5s ease-in-out infinite;
}

.layer-spark {
  --d: 0.7;
  background:
    radial-gradient(circle at 30% 30%, rgba(226, 229, 236, 0.55) 0 1px, transparent 2px),
    radial-gradient(circle at 70% 55%, rgba(0, 252, 218, 0.7) 0 1.5px, transparent 3px),
    radial-gradient(circle at 48% 70%, rgba(226, 229, 236, 0.4) 0 1px, transparent 2px);
  background-size: 100% 100%;
  opacity: 0.7;
}

.stage-copy {
  --d: 0.08;
  position: relative;
  z-index: 5;
  width: min(100% - 2rem, 36rem);
  margin-right: min(38vw, 280px);
  pointer-events: none;
  will-change: transform;
  transform: translate3d(
    calc(var(--mx) * var(--d) * 1px),
    calc(var(--my) * var(--d) * 1px + var(--sy) * var(--d) * -0.35px),
    0
  );
  transition: transform 0.12s linear;
}

.stage-copy .cta {
  pointer-events: auto;
}

.brand {
  margin: 0 0 0.75rem;
  font-family: var(--font-d);
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--cyan);
  font-size: 0.95rem;
}

.stage h1 {
  margin: 0;
  font-family: var(--font-d);
  font-weight: 800;
  font-size: clamp(2.8rem, 8vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.stage h1 span {
  color: var(--cyan);
}

.lead {
  margin: 1.1rem 0 1.6rem;
  color: var(--fog-dim);
  max-width: 28rem;
}

.lead span {
  display: block;
  margin-top: 0.4rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.35rem;
  background: var(--cyan);
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  border: 1px solid var(--cyan);
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}

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

.cta:focus-visible {
  outline: 2px solid var(--fog);
  outline-offset: 3px;
}

.cta-ghost {
  background: transparent;
  color: var(--cyan);
}

.cta-ghost:hover {
  background: var(--cyan);
  color: var(--navy);
}

.scroll-hint {
  position: absolute;
  bottom: 1.4rem;
  left: 50%;
  translate: -50% 0;
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fog-dim);
  z-index: 6;
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes floaty {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 0.9;
  }
}

main {
  position: relative;
  z-index: 2;
  background: var(--navy);
}

.panel {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5rem) 1.25rem 2rem;
}

.panel h2 {
  margin: 0 0 1rem;
  font-family: var(--font-d);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
}

.panel p {
  margin: 0 0 0.9rem;
  color: var(--fog-dim);
}

.panel em {
  font-style: normal;
  color: var(--cyan);
}

.rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
  max-width: 1000px;
  margin: 0 auto 0;
}

.rail article {
  background: var(--navy);
  padding: 1.5rem 1.25rem;
}

.rail h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-d);
  color: var(--cyan);
  font-size: 1.25rem;
}

.rail p {
  margin: 0 0 0.35rem;
  color: var(--fog-dim);
  font-size: 0.95rem;
}

.float-band {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 0.35fr 1fr;
  align-items: center;
  gap: 1.5rem;
  max-width: 1000px;
  margin: 3rem auto;
  padding: 2.5rem 1.25rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.float-key {
  width: min(40vw, 160px);
  height: auto;
  justify-self: center;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.45));
  will-change: transform;
  transform: translate3d(0, calc(var(--band-y, 0) * 1px), 0);
}

.float-copy h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-d);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  letter-spacing: -0.03em;
}

.float-copy p {
  margin: 0 0 1.1rem;
  color: var(--fog-dim);
}

.faq {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
}

.faq h2 {
  margin: 0 0 1rem;
  font-family: var(--font-d);
  font-size: 1.8rem;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0;
}

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

.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

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

.faq p {
  margin: 0.5rem 0 0;
  color: var(--fog-dim);
}

.end {
  text-align: center;
  padding: 4rem 1.25rem 5rem;
  background: linear-gradient(180deg, transparent, rgba(0, 252, 218, 0.06));
}

.end img {
  width: 64px;
  height: 64px;
  margin-bottom: 0.8rem;
  filter: drop-shadow(0 0 16px rgba(0, 252, 218, 0.35));
}

.end h2 {
  margin: 0;
  font-family: var(--font-d);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
}

.end p {
  margin: 0.5rem 0 1.3rem;
  color: var(--fog-dim);
}

.foot {
  padding: 1.3rem 1.25rem 2rem;
  border-top: 1px solid var(--line);
  color: var(--fog-dim);
  font-size: 0.85rem;
}

.foot p {
  margin: 0 0 0.35rem;
}

.fine {
  font-size: 0.76rem;
  opacity: 0.75;
}

@media (max-width: 800px) {
  .stage-copy {
    margin-right: 0;
    margin-top: 42vh;
    text-align: center;
    justify-self: center;
  }

  .lead {
    margin-left: auto;
    margin-right: auto;
  }

  .layer-key img,
  .layer-key-shadow img {
    width: min(70vw, 280px);
    translate: 0 -18vh;
  }

  .layer-ring::before {
    width: min(78vw, 340px);
    translate: 0 -18vh;
  }

  .rail,
  .float-band {
    grid-template-columns: 1fr;
  }
}

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

  .layer,
  .stage-copy,
  .float-key,
  .layer-key img,
  .scroll-hint {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}