:root {
  --cyan: #00fcda;
  --navy: #002841;
  --void: #00101c;
  --fog: #e2e5ec;
  --fog-dim: rgba(226, 229, 236, 0.65);
  --line: rgba(0, 252, 218, 0.22);
  --font-d: "Chakra Petch", system-ui, sans-serif;
  --font-m: "JetBrains Mono", ui-monospace, monospace;
  --rx: 0deg;
  --ry: 0deg;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--fog);
  background: var(--void);
  font-family: var(--font-d);
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.scanlines,
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
}

.scanlines {
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 2px,
    rgba(0, 0, 0, 0.12) 2px 3px
  );
  opacity: 0.35;
  mix-blend-mode: multiply;
}

.noise {
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 128 128' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hud-top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem clamp(0.9rem, 3vw, 2rem);
  font-family: var(--font-m);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  background: linear-gradient(180deg, rgba(0, 16, 28, 0.92), transparent);
}

.hud-chip {
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--line);
  color: var(--fog-dim);
}

.hud-chip.live {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--cyan);
}

.hud-chip.live span {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 1.4s ease-in-out infinite;
}

.hud-link {
  text-decoration: none;
  color: var(--void);
  background: var(--cyan);
  padding: 0.4rem 0.7rem;
  font-weight: 700;
}

.scene {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 1rem;
  padding: 5rem clamp(1rem, 4vw, 2.5rem) 3rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 30% 40%, rgba(0, 252, 218, 0.1), transparent 55%),
    linear-gradient(160deg, #001a2c, var(--void) 55%, #002841);
}

.scene-world {
  position: relative;
  height: min(70vh, 560px);
  transform-style: preserve-3d;
  perspective: 900px;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform 0.12s linear;
}

.grid-floor {
  position: absolute;
  left: 5%;
  right: 5%;
  bottom: 8%;
  height: 55%;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: rotateX(68deg) scale(1.2);
  transform-origin: center bottom;
  mask-image: linear-gradient(to top, #000 10%, transparent 85%);
  animation: grid-run 12s linear infinite;
}

@keyframes grid-run {
  to {
    background-position: 0 42px, 42px 0;
  }
}

.holo {
  position: absolute;
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(0, 40, 65, 0.72), rgba(0, 16, 28, 0.55));
  backdrop-filter: blur(6px);
  box-shadow:
    0 0 0 1px rgba(0, 252, 218, 0.08),
    0 20px 50px rgba(0, 0, 0, 0.35),
    inset 0 0 30px rgba(0, 252, 218, 0.05);
  transform-style: preserve-3d;
  animation: bob 5s ease-in-out infinite;
}

.holo::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(0, 252, 218, 0.12), transparent 70%);
  animation: sheen 3.8s ease-in-out infinite;
  pointer-events: none;
}

.mono {
  margin: 0;
  font-family: var(--font-m);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-transform: uppercase;
}

.holo-a {
  width: min(46%, 240px);
  padding: 0.85rem;
  left: 18%;
  top: 12%;
  transform: translateZ(60px) rotateY(-12deg);
  animation-delay: 0s;
}

.holo-a img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0.5rem 0;
  filter: drop-shadow(0 0 18px rgba(0, 252, 218, 0.35));
}

.holo-b {
  width: min(40%, 200px);
  padding: 1rem;
  right: 8%;
  top: 22%;
  transform: translateZ(110px) rotateY(16deg);
  animation-delay: -1.2s;
}

.holo-b strong {
  display: block;
  margin: 0.55rem 0;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  letter-spacing: -0.02em;
  color: var(--fog);
}

.holo-c {
  width: min(42%, 210px);
  padding: 1rem;
  left: 28%;
  bottom: 14%;
  transform: translateZ(40px) rotateY(-6deg);
  animation-delay: -2.4s;
}

.holo-c ul {
  margin: 0.55rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-m);
  font-size: 0.78rem;
  color: var(--fog-dim);
}

.holo-c li {
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(0, 252, 218, 0.12);
}

.holo-c li::before {
  content: "> ";
  color: var(--cyan);
}

.cube {
  position: absolute;
  right: 18%;
  bottom: 18%;
  width: 70px;
  height: 70px;
  transform-style: preserve-3d;
  transform: translateZ(20px) rotateX(-18deg) rotateY(32deg);
  animation: spin3d 14s linear infinite;
}

.cube-face {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 252, 218, 0.45);
  background: rgba(0, 252, 218, 0.06);
}

.f1 {
  transform: translateZ(35px);
}
.f2 {
  transform: rotateY(180deg) translateZ(35px);
}
.f3 {
  transform: rotateY(90deg) translateZ(35px);
}
.f4 {
  transform: rotateY(-90deg) translateZ(35px);
}
.f5 {
  transform: rotateX(90deg) translateZ(35px);
}
.f6 {
  transform: rotateX(-90deg) translateZ(35px);
}

@keyframes bob {
  0%,
  100% {
    translate: 0 0;
  }
  50% {
    translate: 0 -10px;
  }
}

@keyframes sheen {
  0%,
  100% {
    opacity: 0.15;
    transform: translateX(-30%);
  }
  50% {
    opacity: 0.55;
    transform: translateX(30%);
  }
}

@keyframes spin3d {
  to {
    transform: translateZ(20px) rotateX(-18deg) rotateY(392deg);
  }
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.25;
  }
}

.scene-copy {
  position: relative;
  z-index: 2;
  max-width: 28rem;
  animation: rise 0.8s ease both;
}

.brand {
  margin: 0 0 0.85rem;
  font-family: var(--font-m);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  position: relative;
}

.glitch {
  animation: glitch 4.5s steps(2, end) infinite;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  overflow: hidden;
  opacity: 0.75;
}

.glitch::before {
  color: #7affec;
  clip-path: inset(0 0 55% 0);
  transform: translate(-2px, -1px);
}

.glitch::after {
  color: #e2e5ec;
  clip-path: inset(45% 0 0 0);
  transform: translate(2px, 1px);
}

@keyframes glitch {
  0%,
  90%,
  100% {
    transform: none;
  }
  92% {
    transform: translate(-2px, 1px);
  }
  94% {
    transform: translate(2px, -1px);
  }
  96% {
    transform: translate(1px, 2px);
  }
}

.scene h1 {
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.accent {
  color: var(--cyan);
  text-shadow: 0 0 24px rgba(0, 252, 218, 0.35);
}

.lead {
  margin: 1.1rem 0 1.6rem;
  color: var(--fog-dim);
  font-weight: 500;
}

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

.cta {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  padding: 0.95rem 1.25rem;
  background: var(--cyan);
  color: var(--void);
  text-decoration: none;
  font-weight: 700;
  border: 1px solid var(--cyan);
  position: relative;
  overflow: hidden;
}

.cta > span:first-child {
  font-size: 1.05rem;
}

.cta-sub {
  font-family: var(--font-m);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

.cta.pulse::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.35), transparent 80%);
  transform: translateX(-120%);
  animation: sweep 2.8s ease-in-out infinite;
}

@keyframes sweep {
  0%,
  60% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(120%);
  }
}

.cta:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
}

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

.cta-block {
  width: 100%;
  align-items: center;
  margin-top: 1rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.ticker {
  border-block: 1px solid var(--line);
  background: rgba(0, 40, 65, 0.65);
  overflow: hidden;
  padding: 0.7rem 0;
}

.ticker-track {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  font-family: var(--font-m);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--fog-dim);
  animation: tick 28s linear infinite;
}

.ticker-track span::after {
  content: "///";
  margin-left: 1.5rem;
  color: var(--cyan);
}

@keyframes tick {
  to {
    transform: translateX(-50%);
  }
}

.modules {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  max-width: 1100px;
  margin: 0 auto;
  border-block: 1px solid var(--line);
}

.mod {
  background: var(--void);
  padding: 1.6rem 1.25rem;
}

.mod-num {
  font-family: var(--font-m);
  color: var(--cyan);
  font-size: 0.75rem;
  margin-bottom: 0.6rem;
}

.mod h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.mod p {
  margin: 0 0 0.35rem;
  color: var(--fog-dim);
  font-size: 0.95rem;
  font-weight: 500;
}

.terminal {
  max-width: 720px;
  margin: 3rem auto;
  padding: 0 1.1rem;
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.8rem;
  background: #01304a;
  border: 1px solid var(--line);
  border-bottom: 0;
  font-family: var(--font-m);
  font-size: 0.72rem;
  color: var(--fog-dim);
}

.term-bar span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0.35;
}

.term-bar span:nth-child(1) {
  opacity: 0.9;
}
.term-bar span:nth-child(2) {
  opacity: 0.6;
}

.term-bar code {
  margin-left: auto;
  color: var(--cyan);
}

.term-body {
  margin: 0;
  padding: 1.1rem 1rem 1.2rem;
  background: #000c14;
  border: 1px solid var(--line);
  font-family: var(--font-m);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--fog);
  min-height: 10rem;
  overflow: hidden;
}

.term-body .g {
  color: var(--cyan);
}
.term-body .c {
  color: rgba(226, 229, 236, 0.4);
}
.term-body .ok {
  color: #7dffc8;
}

.faq {
  max-width: 720px;
  margin: 0 auto 2rem;
  padding: 0 1.1rem 2rem;
}

.faq h2 {
  margin: 0 0 1rem;
  font-family: var(--font-m);
  font-size: 1rem;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 0.85rem 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: 0.45rem 0 0;
  color: var(--fog-dim);
}

.end {
  text-align: center;
  padding: 4rem 1.2rem 5rem;
  position: relative;
}

.end-orbit {
  width: 120px;
  height: 120px;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 50%;
  animation: spin-slow 10s linear infinite;
}

.end-orbit img {
  width: 72px;
  height: 72px;
  animation: spin-slow 10s linear infinite reverse;
  filter: drop-shadow(0 0 12px rgba(0, 252, 218, 0.4));
}

@keyframes spin-slow {
  to {
    transform: rotate(360deg);
  }
}

.end h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

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

.foot {
  padding: 1.2rem 1.1rem 2rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-m);
  font-size: 0.72rem;
  color: var(--fog-dim);
}

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

.fine {
  opacity: 0.7;
}

@media (max-width: 900px) {
  .scene {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 4.5rem;
  }

  .scene-world {
    height: 380px;
    order: -1;
  }

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

  .hud-chip:not(.live) {
    display: none;
  }

  .holo-a {
    left: 8%;
  }

  .cube {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scanlines,
  .noise {
    display: none;
  }

  .grid-floor,
  .holo,
  .holo::before,
  .cube,
  .glitch,
  .cta.pulse::after,
  .ticker-track,
  .end-orbit,
  .end-orbit img,
  .hud-chip.live span {
    animation: none !important;
  }

  .scene-world {
    transform: none !important;
    transition: none !important;
  }
}