:root {
  --bg: #08040f;
  --bg-soft: #10071c;
  --paper: #160b26;
  --paper-2: #211033;
  --paper-3: #2d1645;
  --ink: #f4edff;
  --muted: #c3b2da;
  --purple: #9b4dff;
  --purple-2: #6f2bd9;
  --purple-dark: #2a0d4a;
  --hot: #ff4fd8;
  --line: rgba(229, 209, 255, 0.22);
  --shadow: 9px 9px 0 rgba(111, 43, 217, 0.35);
  --display: "Archivo Black", Impact, sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --type: "Special Elite", monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 10%, rgba(155, 77, 255, 0.22), transparent 28rem),
    radial-gradient(circle at 88% 20%, rgba(255, 79, 216, 0.12), transparent 24rem),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.035) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 32px 32px, 32px 32px, auto;
  color: var(--ink);
  font-family: var(--mono);
  overflow-x: hidden;
}

.site-noise,
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
}

.site-noise {
  opacity: .12;
  mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 260 260' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)' opacity='.75'/%3E%3C/svg%3E");
}

.scanlines {
  opacity: .22;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(255,255,255,.11) 3px 4px);
}

a {
  color: inherit;
}

p {
  color: var(--muted);
  line-height: 1.65;
  font-size: 15px;
}

h1,
h2,
h3 {
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: -0.07em;
  line-height: 0.88;
}

h1 {
  font-size: clamp(2.7rem, 6.8vw, 6.5rem);
}

h1 em {
  display: block;
  color: var(--purple);
  font-style: normal;
  text-shadow: 4px 4px 0 #000;
  -webkit-text-stroke: 1px var(--ink);
}

h2 {
  font-size: clamp(2.4rem, 6vw, 5.4rem);
}

h3 {
  font-size: 1.35rem;
}

code {
  padding: 2px 6px;
  border: 1px solid var(--line);
  background: #05000b;
  color: var(--purple);
}

main {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
}

section {
  padding: 5rem 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto auto 1fr auto auto;
  gap: 1rem;
  align-items: center;
  padding: 8px 14px;
  border-bottom: 2px solid var(--line);
  background: rgba(8, 4, 15, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 35px rgba(0, 0, 0, .35);
}

.window-buttons {
  display: flex;
  gap: 6px;
}

.window-buttons span {
  width: 13px;
  height: 13px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
}

.window-buttons span:nth-child(1) {
  background: var(--hot);
}

.window-buttons span:nth-child(2) {
  background: var(--purple);
}

.window-buttons span:nth-child(3) {
  background: var(--purple-2);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  text-decoration: none;
}

.logo-vertical {
  display: grid;
  place-items: center;
  width: 28px;
  height: 78px;
  background: var(--purple);
  color: #090011;
  font-family: var(--display);
  font-size: .72rem;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.logo strong {
  font-family: var(--display);
  font-size: .9rem;
  max-width: 120px;
  line-height: .9;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: .45rem;
}

.main-nav a,
.lang-toggle button {
  border: 1px solid transparent;
  background: transparent;
  padding: .45rem .65rem;
  color: var(--ink);
  font-family: var(--type);
  font-size: .85rem;
  text-decoration: none;
  text-transform: lowercase;
  cursor: pointer;
}

.main-nav a:hover,
.main-nav a.active,
.lang-toggle button.active {
  border-color: var(--purple);
  background: var(--purple);
  color: #090011;
  box-shadow: 3px 3px 0 #000;
}

.lang-toggle {
  display: flex;
  gap: 4px;
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: var(--purple);
  padding: 8px;
  cursor: pointer;
}

.menu-btn span {
  display: block;
  width: 22px;
  height: 3px;
  margin: 4px;
  background: #090011;
}

.oldweb-frame {
  border: 1px solid var(--line);
  background: rgba(22, 11, 38, 0.84);
  box-shadow: var(--shadow);
}

.hero {
  min-height: calc(100vh - 95px);
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) 430px;
  gap: 2rem;
  align-items: stretch;
  margin-top: 1.4rem;
  padding: 0;
  overflow: hidden;
}

.left-menu {
  padding: 1.2rem .9rem;
  border-right: 1px solid var(--line);
  background: rgba(33, 16, 51, 0.82);
}

.side-title {
  margin-bottom: 1.2rem;
  color: var(--ink);
  font-family: var(--display);
  text-transform: uppercase;
}

.left-menu a {
  display: block;
  padding: .45rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--type);
  text-decoration: none;
}

.left-menu a:hover {
  background: var(--purple);
  color: #090011;
}

.hero-content {
  padding: 3.2rem 0;
  align-self: center;
  position: relative;
  z-index: 2;
}

.browser-label {
  display: flex;
  width: fit-content;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 5px 9px;
  border: 1px solid var(--line);
  background: #090011;
  color: var(--purple);
  font-size: .75rem;
}

.hero-copy {
  max-width: 620px;
  margin: 1.3rem 0 1.8rem;
  padding: 1rem;
  border-left: 5px solid var(--purple);
  background: rgba(8, 4, 15, .6);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1rem;
  border: 1px solid var(--purple);
  color: var(--ink);
  font-family: var(--display);
  font-size: .82rem;
  text-decoration: none;
  text-transform: uppercase;
  box-shadow: 5px 5px 0 #000;
  transition: transform .12s ease, box-shadow .12s ease;
}

.btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 #000;
}

.btn-primary {
  background: var(--purple);
  color: #090011;
}

.btn-secondary {
  background: #090011;
  color: var(--ink);
}

.hero-visual {
  border-left: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 35%, rgba(155, 77, 255, .35), transparent 13rem),
    rgba(8, 4, 15, .65);
  display: grid;
  place-items: center;
  padding: 1.2rem;
}

.tracking-card,
.fake-window,
.terminal,
.text-panel,
.gesture-card,
.requirements-grid article,
.guide-gestures article {
  border: 1px solid var(--line);
  background: rgba(22, 11, 38, 0.92);
  box-shadow: var(--shadow);
}

.tracking-card {
  width: 100%;
  max-width: 390px;
  overflow: hidden;
}

.tracking-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .6rem .7rem;
  border-bottom: 1px solid var(--line);
  background: #05000b;
  color: var(--purple);
  font-size: .75rem;
}

.hand-svg,
.tracking-board svg {
  width: 100%;
  display: block;
  background: #08040f;
}

.hand-fill,
.palm-outline,
.mini-outline {
  fill: rgba(155, 77, 255, .08);
  stroke: var(--ink);
  stroke-width: 4;
}

.bones path,
.grid-path,
.gesture-svg path:not(.mini-outline) {
  fill: none;
  stroke: var(--purple);
  stroke-width: 4;
  stroke-linecap: round;
  filter: drop-shadow(0 0 5px rgba(155, 77, 255, .85));
}

.points circle,
.purple-points circle,
.gesture-svg circle {
  fill: var(--purple);
  stroke: #05000b;
  stroke-width: 3;
  filter: drop-shadow(0 0 5px rgba(155, 77, 255, .9));
}

.hot-point {
  fill: var(--hot) !important;
}

.hand-svg text,
.tracking-board text {
  font-family: var(--mono);
  font-size: 14px;
  fill: var(--muted);
  text-transform: uppercase;
}

.board-bg {
  fill: #08040f;
}

.split-section {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 2rem;
  align-items: start;
}

.section-tag {
  width: fit-content;
  margin-bottom: .8rem;
  padding: 3px 9px;
  border: 1px solid var(--purple);
  background: var(--purple);
  color: #090011;
  font-family: var(--type);
  font-size: .9rem;
  text-transform: lowercase;
}

.text-panel {
  padding: 1.5rem;
  background: rgba(8, 4, 15, .72);
}

.text-panel p + p {
  margin-top: 1rem;
}

.section-head {
  margin-bottom: 2rem;
}

.tracking-explain,
.install-section {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 2rem;
  align-items: center;
}

.fake-window {
  overflow: hidden;
}

.fake-window-top {
  display: flex;
  justify-content: space-between;
  padding: .65rem .8rem;
  border-bottom: 1px solid var(--line);
  background: #05000b;
  color: var(--purple);
  font-family: var(--type);
}

.feature-list {
  list-style: none;
  margin-top: 1.2rem;
}

.feature-list li {
  color: var(--muted);
  padding: .5rem 0;
  border-bottom: 1px solid var(--line);
}

.feature-list li::before {
  content: "+ ";
  color: var(--purple);
}

.gesture-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.1rem;
}

.gesture-card {
  min-height: 390px;
  padding: 1rem;
  position: relative;
  overflow: hidden;
  transition: transform .15s ease;
}

.gesture-card:nth-child(2n) {
  transform: rotate(-1deg);
}

.gesture-card:nth-child(3n) {
  transform: rotate(1deg);
}

.gesture-card:hover {
  transform: translateY(-8px) rotate(0deg);
}

.card-num,
.requirements-grid span {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 4px 8px;
  border: 1px solid var(--purple);
  background: var(--purple);
  color: #090011;
  font-family: var(--display);
}

.gesture-img {
  width: 100%;
  height: 155px;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  background: #05000b;
  overflow: hidden;
  position: relative;
}

.gesture-img::after {
  content: "REAL HANDTRACKING";
  position: absolute;
  left: 10px;
  top: 10px;
  padding: 3px 7px;
  border: 1px solid var(--purple);
  background: rgba(5, 0, 11, 0.78);
  color: var(--purple);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gesture-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.08) saturate(0.95) brightness(0.78);
}

.gesture-card h3 {
  margin-bottom: .7rem;
}

.terminal {
  overflow: hidden;
  background: #05000b;
}

.terminal-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .65rem .8rem;
  border-bottom: 1px solid var(--purple);
  color: var(--purple);
}

.copy-trigger {
  border: 1px solid var(--purple);
  background: transparent;
  color: var(--purple);
  padding: 3px 8px;
  cursor: pointer;
  font-family: var(--mono);
}

pre {
  overflow-x: auto;
  padding: 1.2rem;
}

pre code {
  display: block;
  border: 0;
  background: transparent;
  color: var(--ink);
  line-height: 1.75;
}

.page-hero {
  margin-top: 1.4rem;
  padding: 4rem 2rem;
}

.page-hero p:not(.section-tag) {
  max-width: 720px;
  margin-top: 1rem;
}

.requirements-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.requirements-grid article {
  padding: 1rem;
  min-height: 220px;
}

.guide-gestures {
  display: grid;
  gap: 1rem;
}

.guide-gestures article {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: center;
  padding: 1rem;
}

.guide-gestures .gesture-img {
  height: 210px;
  margin-bottom: 0;
}

.site-footer {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto 1.4rem;
  border: 1px solid var(--line);
  background: rgba(22, 11, 38, 0.92);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.marquee {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #05000b;
  color: var(--purple);
  white-space: nowrap;
}

.marquee span {
  display: inline-block;
  padding: .8rem 0;
  font-family: var(--display);
  animation: marquee 16s linear infinite;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }

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

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem;
}

.footer-content a {
  color: var(--ink);
  font-family: var(--type);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .45s ease, transform .45s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .hero,
  .split-section,
  .tracking-explain,
  .install-section {
    grid-template-columns: 1fr;
  }

  .left-menu {
    display: none;
  }

  .hero-content {
    padding: 2rem;
  }

  .hero-visual {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .tracking-card {
    max-width: 520px;
  }

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

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

  .gesture-img {
    height: 200px;
  }

  .guide-gestures article {
    grid-template-columns: 1fr;
  }

  .guide-gestures .gesture-img {
    height: 260px;
  }
}

@media (max-width: 760px) {
  .topbar {
    grid-template-columns: auto 1fr auto;
  }

  .window-buttons,
  .lang-toggle {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 78px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    border: 1px solid var(--line);
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    border: 1px solid var(--line);
    background: #08040f;
  }

  h1 {
    font-size: clamp(3.2rem, 17vw, 5rem);
  }

  h2 {
    font-size: clamp(2.5rem, 14vw, 4.5rem);
  }

  .gesture-grid,
  .requirements-grid {
    grid-template-columns: 1fr;
  }

  .gesture-img,
  .guide-gestures .gesture-img {
    height: 220px;
  }

  section {
    padding: 3.5rem 0;
  }
}