/* =========================================================
   Askmind — Motion Lab
   Hand-written CSS. No frameworks, no build step.
   ---------------------------------------------------------
   1.  Design tokens
   2.  Reset & base
   3.  Utilities (reveal, gradient text, chips, buttons)
   4.  Chrome (noise, cursor, progress, loader, nav)
   5.  Hero
   6.  Marquee
   7.  Section shell
   8.  Filter bar
   9.  Lab cards
   10. Individual demo stages
   11. Statement scrub
   12. Playground cards
   13. Process timeline
   14. Stack row
   15. FAQ
   16. Contact CTA
   17. Footer & back-to-top
   18. Responsive
   19. Reduced motion
   ========================================================= */

/* ---------------------------------------------------------
   1. Design tokens
   --------------------------------------------------------- */
:root {
  /* Surfaces — deepest to nearest */
  --bg: #07070c;
  --bg-2: #0a0a11;
  --surface: #101019;
  --surface-2: #16161f;
  --surface-3: #1d1d29;

  /* Lines */
  --line: rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.055);
  --line-strong: rgba(255, 255, 255, 0.18);

  /* Text — every value clears AA contrast on --bg and --surface */
  --text: #f7f8fc;
  --text-2: #c3c6d8;
  --text-3: #9296ad;

  /* Brand */
  --violet: #8b6cff;
  --cyan: #3ee6d4;
  --amber: #ffb257;
  --pink: #ff5f9e;

  --grad-brand: linear-gradient(115deg, var(--violet), var(--cyan));
  --grad-warm: linear-gradient(115deg, var(--amber), var(--pink));

  /* Shape */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 34px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  /* Layout */
  --shell: min(1280px, 90vw);
  --nav-h: 74px;

  color-scheme: dark;
}

/* ---------------------------------------------------------
   2. Reset & base
   --------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(0.98rem, 0.94rem + 0.2vw, 1.06rem);
  line-height: 1.65;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
p { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--text);
  text-wrap: balance;
}

::selection { background: var(--violet); color: #fff; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------------------------------------------------------
   3. Utilities
   --------------------------------------------------------- */

/* Scroll reveal. Content is visible by default and only hidden once JS has
   confirmed it is able to reveal it again — so a script failure can never
   leave text invisible against the background. */
.am-reveal { opacity: 1; }

html.am-js .am-reveal {
  opacity: 0;
  transform: translate3d(0, 26px, 0);
  transition:
    opacity 0.85s var(--ease-out),
    transform 0.85s var(--ease-out);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}

html.am-js .am-reveal.is-in {
  opacity: 1;
  transform: none;
  will-change: auto;
}

/* Masked line reveal for headline typography */
.am-line { display: block; overflow: hidden; padding-bottom: 0.08em; }
.am-line > span { display: block; }

html.am-js .am-line > span {
  transform: translate3d(0, 110%, 0);
  transition: transform 1s var(--ease-out);
  transition-delay: var(--d, 0ms);
}

html.am-js .am-line.is-in > span { transform: none; }

/* Gradient type, with a guaranteed-legible fallback colour */
.am-grad {
  color: var(--cyan);
  font-style: normal;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .am-grad {
    background-image: var(--grad-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .am-grad--warm { background-image: var(--grad-warm); }
}

.am-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 1.1rem;
}

.am-eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.am-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.66rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.03);
  white-space: nowrap;
}

.am-chip--canvas { color: var(--cyan); border-color: rgba(62, 230, 212, 0.32); }
.am-chip--css    { color: var(--violet); border-color: rgba(139, 108, 255, 0.36); }
.am-chip--svg    { color: var(--amber); border-color: rgba(255, 178, 87, 0.34); }
.am-chip--webgl  { color: var(--pink); border-color: rgba(255, 95, 158, 0.34); }

.am-sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Buttons */
.am-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.92rem 1.7rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.94rem;
  letter-spacing: -0.01em;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease-out), border-color 0.3s, background 0.3s;
}

.am-btn--primary {
  background: var(--grad-brand);
  color: #08080d;
  box-shadow: 0 10px 34px -14px rgba(139, 108, 255, 0.9);
}

.am-btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(115deg, transparent 32%, rgba(255, 255, 255, 0.6) 48%, transparent 64%);
  transform: translateX(-130%);
  transition: transform 0.75s var(--ease-out);
}

.am-btn--primary:hover::after { transform: translateX(130%); }
.am-btn--primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -14px rgba(139, 108, 255, 0.95); }

.am-btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.am-btn--ghost:hover {
  border-color: rgba(62, 230, 212, 0.5);
  background: rgba(62, 230, 212, 0.07);
  transform: translateY(-3px);
}

.am-btn span { position: relative; z-index: 2; }
.am-btn__arrow { transition: transform 0.4s var(--ease-spring); }
.am-btn:hover .am-btn__arrow { transform: translateX(4px); }

/* ---------------------------------------------------------
   4. Chrome
   --------------------------------------------------------- */
.am-noise {
  position: fixed;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: 0.03;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Custom cursor */
.am-cursor { position: fixed; inset: 0; z-index: 9999; pointer-events: none; }

.am-cursor__dot,
.am-cursor__ring {
  position: fixed;
  top: 0; left: 0;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  will-change: transform;
  mix-blend-mode: difference;
}

.am-cursor__dot {
  width: 6px; height: 6px;
  background: #fff;
  transition: opacity 0.25s;
}

.am-cursor__ring {
  width: 32px; height: 32px;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  transition: width 0.35s var(--ease-spring), height 0.35s var(--ease-spring), opacity 0.25s, border-color 0.25s;
}

.am-cursor__ring.is-active { width: 56px; height: 56px; border-color: #fff; }

@media (hover: none), (pointer: coarse) {
  .am-cursor { display: none; }
}

/* Scroll progress */
.am-progress {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 2px;
  z-index: 1000;
}

.am-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--grad-brand);
  box-shadow: 0 0 14px rgba(62, 230, 212, 0.6);
}

/* Loader */
.am-loader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  background: var(--bg);
  transition: opacity 0.7s var(--ease-out), visibility 0.7s;
}

.am-loader.is-hidden { opacity: 0; visibility: hidden; }
.am-loader__mark path { stroke-dasharray: 1; stroke-dashoffset: 1; animation: amDraw 1.2s var(--ease-io) forwards; }

.am-loader__word {
  font-family: var(--font-mono);
  letter-spacing: 0.42em;
  font-size: 0.72rem;
  text-indent: 0.42em;
  color: var(--text-3);
  opacity: 0;
  animation: amFade 0.6s 0.65s var(--ease-out) forwards;
}

@keyframes amDraw { to { stroke-dashoffset: 0; } }
@keyframes amFade { to { opacity: 1; } }

/* Brand mark — still used by the footer's "back to top" link */
.am-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -0.01em;
}

.am-logo__mark {
  width: 22px; height: 22px;
  border-radius: 7px;
  background: var(--grad-brand);
  box-shadow: 0 0 18px -4px rgba(139, 108, 255, 0.9);
  animation: amLogoSpin 9s var(--ease-io) infinite;
}

@keyframes amLogoSpin {
  0%, 100% { border-radius: 7px; transform: rotate(0deg); }
  50% { border-radius: 50% 12px 50% 12px; transform: rotate(180deg); }
}

.am-logo b { font-weight: 700; }
.am-logo i { font-style: normal; color: var(--cyan); }

/* Real shared AskMind header (injected via <!-- @header -->), recoloured to sit on
   this page's dark canvas instead of its default light/white chrome. Scoped to
   .am-page so nothing here leaks into the rest of the site. */
.am-page .header-glass {
  background-color: rgba(7, 7, 12, 0.82);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom-color: var(--line);
}

.am-page .nav-link { color: var(--text-2); }
.am-page .nav-link:hover { color: var(--text); background-color: rgba(255, 255, 255, 0.06); }
.am-page .nav-link.active { color: var(--cyan); background-color: rgba(62, 230, 212, 0.1); }
/* Basket pill keeps its white background from styles.css, so its label needs to stay dark for contrast. */
.am-page .nav-link.cart-trigger,
.am-page .nav-link.cart-trigger:hover { color: #000000; background-color: #ffffff; }
.am-page .font-bold.text-slate-900 { color: var(--text); }
.am-page .text-slate-500 { color: var(--text-3); }
.am-page .nav-dropdown-caret { color: var(--text-3); }
.am-page .nav-dropdown-caret:hover,
.am-page .nav-dropdown.open .nav-dropdown-caret { background-color: rgba(255, 255, 255, 0.06); color: var(--cyan); }
.am-page #mobile-menu-btn { color: var(--text-2); }
.am-page #mobile-menu-btn:hover { background-color: rgba(255, 255, 255, 0.06); }

/* ---------------------------------------------------------
   5. Hero
   --------------------------------------------------------- */
.am-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 3rem 0 5rem;
  overflow: hidden;
}

.am-hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%; height: 100%;
  opacity: 0.85;
}

.am-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 70% 60% at 30% 45%, rgba(7, 7, 12, 0.86), transparent 72%),
    linear-gradient(to bottom, rgba(7, 7, 12, 0.55), rgba(7, 7, 12, 0.2) 34%, var(--bg) 97%);
}

.am-hero__grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 40% 45%, #000 8%, transparent 76%);
  mask-image: radial-gradient(ellipse 70% 60% at 40% 45%, #000 8%, transparent 76%);
}

.am-hero__inner {
  position: relative;
  z-index: 2;
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.am-hero__title {
  font-size: clamp(2.7rem, 7.4vw, 5.6rem);
  font-weight: 600;
  letter-spacing: -0.045em;
}

.am-hero__sub {
  margin: 1.8rem 0 2.4rem;
  max-width: 46ch;
  color: var(--text-2);
  font-size: clamp(1rem, 0.94rem + 0.35vw, 1.14rem);
}

.am-hero__actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.am-hero__meta {
  display: flex;
  gap: clamp(1.4rem, 4vw, 2.8rem);
  margin-top: 3rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--line-soft);
  flex-wrap: wrap;
}

.am-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--cyan);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .am-stat__num {
    background-image: var(--grad-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.am-stat__label {
  display: block;
  margin-top: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* Hero side visual — spinning network globe (frameless, full-bleed) */
.am-globe {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.3rem;
}

.am-globe__stage {
  position: relative;
  width: 100%;
  max-width: 620px;
  aspect-ratio: 1 / 1;
  cursor: grab;
  touch-action: none;
}

.am-globe__stage:active { cursor: grabbing; }

.am-globe__canvas { display: block; width: 100%; height: 100%; }

.am-globe__caption {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  text-align: center;
  font-family: var(--font-mono);
}

.am-globe__title {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-2);
}

.am-globe__edition { color: var(--cyan); }

.am-globe__sub {
  font-size: 0.74rem;
  color: var(--text-3);
  max-width: 38ch;
}

.am-globe__sub b { color: var(--cyan); font-weight: 500; }

.am-scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 1.5rem;
  z-index: 2;
  transform: translateX(-50%);
  display: grid;
  place-items: start center;
  padding-top: 8px;
  width: 25px; height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
}

.am-scroll-cue span {
  width: 3px; height: 8px;
  border-radius: 100px;
  background: var(--cyan);
  animation: amCue 1.9s var(--ease-io) infinite;
}

@keyframes amCue {
  0% { transform: translateY(-2px); opacity: 0; }
  40% { opacity: 1; }
  100% { transform: translateY(16px); opacity: 0; }
}

/* ---------------------------------------------------------
   6. Marquee
   --------------------------------------------------------- */
.am-marquee {
  position: relative;
  z-index: 2;
  padding: 1.5rem 0;
  border-block: 1px solid var(--line-soft);
  background: linear-gradient(to bottom, rgba(139, 108, 255, 0.05), transparent);
  overflow: hidden;
  user-select: none;
}

.am-marquee__row { display: flex; overflow: hidden; will-change: transform; }

.am-marquee__track {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  padding-right: 2.4rem;
  white-space: nowrap;
  animation: amMarquee 36s linear infinite;
}

.am-marquee__row--b .am-marquee__track { animation-duration: 48s; animation-direction: reverse; }

.am-marquee__track span {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.1vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.3);
}

.am-marquee__track span.is-solid {
  -webkit-text-stroke: 0;
  color: var(--cyan);
}

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

/* ---------------------------------------------------------
   7. Section shell
   --------------------------------------------------------- */
.am-section {
  position: relative;
  width: var(--shell);
  margin-inline: auto;
  padding: clamp(4.5rem, 10vw, 8.5rem) 0;
}

.am-section--alt::before {
  content: '';
  position: absolute;
  inset: 0 calc(50% - 50vw);
  background: var(--bg-2);
  border-block: 1px solid var(--line-soft);
  z-index: -1;
}

.am-section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(1.4rem, 4vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.4rem, 5vw, 3.8rem);
}

.am-section__head h2 {
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  max-width: 17ch;
}

.am-section__desc {
  color: var(--text-2);
  max-width: 54ch;
  font-size: 1.01rem;
}

/* Live FPS readout */
.am-fps {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.2rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.025);
}

.am-fps::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: amPulse 1.6s ease-in-out infinite;
}

@keyframes amPulse { 50% { opacity: 0.35; transform: scale(0.72); } }

.am-fps b { color: var(--text); font-weight: 500; font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------
   8. Filter bar
   --------------------------------------------------------- */
.am-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 2.2rem;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--line-soft);
}

.am-filter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
  transition: color 0.25s, border-color 0.25s, background 0.25s, transform 0.3s var(--ease-spring);
}

.am-filter:hover { color: var(--text); border-color: var(--line-strong); transform: translateY(-2px); }

.am-filter.is-active {
  color: #08080d;
  background: var(--grad-brand);
  border-color: transparent;
  font-weight: 600;
}

.am-filter b {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  opacity: 0.72;
}

/* ---------------------------------------------------------
   9. Lab cards
   --------------------------------------------------------- */
.am-labs {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(1rem, 1.7vw, 1.5rem);
}

.am-lab {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--surface-2), var(--surface));
  overflow: hidden;
  transition:
    border-color 0.4s var(--ease-out),
    transform 0.5s var(--ease-out),
    box-shadow 0.5s var(--ease-out);
}

.am-lab[data-span='wide'] { grid-column: span 3; }
.am-lab[data-span='full'] { grid-column: span 6; }

.am-lab:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
  box-shadow: 0 34px 70px -46px rgba(0, 0, 0, 0.95);
}

.am-lab.is-hidden { display: none; }

/* Stage */
.am-lab__stage {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 40%, #14141f, #08080e 78%);
  border-bottom: 1px solid var(--line-soft);
  touch-action: none;
  cursor: crosshair;
}

.am-lab[data-span='wide'] .am-lab__stage { aspect-ratio: 16 / 8.2; }
.am-lab[data-span='full'] .am-lab__stage { aspect-ratio: 21 / 7; }

.am-lab__stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.am-lab__hint {
  position: absolute;
  left: 0.85rem;
  bottom: 0.85rem;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.34rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: rgba(8, 8, 14, 0.62);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-2);
  pointer-events: none;
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}

.am-lab__hint::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: amPulse 1.7s ease-in-out infinite;
}

.am-lab__stage.is-touched .am-lab__hint { opacity: 0; transform: translateY(10px); }

.am-lab__paused {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: grid;
  place-items: center;
  background: rgba(7, 7, 12, 0.5);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-2);
}

.am-lab.is-paused .am-lab__paused { opacity: 1; visibility: visible; }

/* Body */
.am-lab__body {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.25rem 1.3rem 1.35rem;
  flex: 1;
}

.am-lab__meta { display: flex; align-items: center; gap: 0.45rem; flex-wrap: wrap; }

.am-lab__index {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-right: 0.2rem;
}

.am-lab__title {
  font-size: clamp(1.16rem, 1.5vw, 1.38rem);
  color: var(--text);
  letter-spacing: -0.028em;
}

.am-lab__desc {
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 58ch;
}

.am-lab__controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 1rem;
}

.am-ctrl {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.44rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.025);
  transition: color 0.25s, border-color 0.25s, background 0.25s, transform 0.3s var(--ease-spring);
}

.am-ctrl:hover {
  color: var(--text);
  border-color: rgba(62, 230, 212, 0.45);
  background: rgba(62, 230, 212, 0.08);
  transform: translateY(-2px);
}

.am-ctrl:active { transform: translateY(0) scale(0.97); }
.am-ctrl svg { width: 11px; height: 11px; fill: currentColor; flex: none; }
.am-lab:not(.is-paused) .am-ctrl__play { display: none; }
.am-lab.is-paused .am-ctrl__pause { display: none; }

/* ---------------------------------------------------------
   10. Individual demo stages
   --------------------------------------------------------- */

/* 10.1 Kinetic type */
.am-kinetic {
  display: grid;
  place-items: center;
  background: radial-gradient(ellipse at 50% 50%, #17172a, #08080e 76%);
}

.am-kinetic__word {
  display: flex;
  position: relative;
  z-index: 2;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 8.5vw, 4.4rem);
  letter-spacing: -0.05em;
  line-height: 1;
}

.am-kinetic__char {
  display: inline-block;
  will-change: transform;
  color: #fff;
  text-shadow: 0 0 42px rgba(139, 108, 255, 0.4);
}

.am-kinetic__ghost {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 8.5vw, 4.4rem);
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(62, 230, 212, 0.22);
  pointer-events: none;
}

/* 10.2 Morph — the viewBox carries its own margin, so the SVG fills the stage */
.am-morph svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.am-morph__path { filter: drop-shadow(0 16px 44px rgba(139, 108, 255, 0.4)); }

.am-morph__label {
  position: absolute;
  top: 0.85rem;
  right: 0.9rem;
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  pointer-events: none;
}

/* 10.3 CSS 3D cube */
.am-cube-stage {
  display: grid;
  place-items: center;
  perspective: 900px;
  background: radial-gradient(ellipse at 50% 45%, #15152b, #08080e 74%);
  cursor: grab;
}

.am-cube-stage:active { cursor: grabbing; }

.am-cube {
  position: relative;
  width: 124px;
  height: 124px;
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, -24deg)) rotateY(var(--ry, 32deg));
  will-change: transform;
}

.am-cube__face {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 10px;
  background:
    linear-gradient(135deg, rgba(139, 108, 255, 0.42), rgba(62, 230, 212, 0.26)),
    rgba(10, 10, 20, 0.3);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 0 44px rgba(139, 108, 255, 0.3);
}

.am-cube__face:nth-child(1) { transform: translateZ(62px); }
.am-cube__face:nth-child(2) { transform: rotateY(180deg) translateZ(62px); }
.am-cube__face:nth-child(3) { transform: rotateY(90deg) translateZ(62px); }
.am-cube__face:nth-child(4) { transform: rotateY(-90deg) translateZ(62px); }
.am-cube__face:nth-child(5) { transform: rotateX(90deg) translateZ(62px); }
.am-cube__face:nth-child(6) { transform: rotateX(-90deg) translateZ(62px); }

.am-cube-stage__glow {
  position: absolute;
  left: 50%;
  bottom: 16%;
  width: 200px; height: 26px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(139, 108, 255, 0.45), transparent 70%);
  filter: blur(12px);
  pointer-events: none;
}

/* 10.4 Ripple matrix */
.am-matrix {
  display: grid;
  grid-template-columns: repeat(var(--cols, 16), 1fr);
  gap: clamp(4px, 0.85vw, 9px);
  padding: clamp(0.9rem, 3vw, 1.8rem);
  align-content: center;
  background: radial-gradient(ellipse at 50% 50%, #101020, #07070d 78%);
}

.am-matrix__cell {
  aspect-ratio: 1;
  border-radius: 3px;
  background: var(--c, #3ee6d4);
  opacity: var(--o, 0.14);
  transform: scale(var(--s, 0.45));
  will-change: transform, opacity;
}

/* 10.5 Aurora mesh */
.am-aurora { overflow: hidden; background: #06060b; cursor: pointer; }

.am-aurora__layer {
  position: absolute;
  inset: -30%;
  filter: blur(48px);
  mix-blend-mode: screen;
  transition: background-image 1.6s var(--ease-out);
  animation: amAuroraDrift var(--dur, 24s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

.am-aurora__layer:nth-child(1) { background: radial-gradient(closest-side, var(--a, #8b6cff), transparent 72%) 22% 28% / 62% 62% no-repeat; }
.am-aurora__layer:nth-child(2) { background: radial-gradient(closest-side, var(--b, #3ee6d4), transparent 72%) 74% 34% / 58% 58% no-repeat; }
.am-aurora__layer:nth-child(3) { background: radial-gradient(closest-side, var(--c, #ff5f9e), transparent 72%) 46% 76% / 66% 66% no-repeat; }

@keyframes amAuroraDrift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  33% { transform: translate3d(7%, -6%, 0) scale(1.14); }
  66% { transform: translate3d(-6%, 6%, 0) scale(0.92); }
}

.am-aurora__grain {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.am-aurora__name {
  position: absolute;
  left: 50%;
  top: 1rem;
  transform: translateX(-50%);
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.8);
  pointer-events: none;
  white-space: nowrap;
}

/* 10.6 Decode text */
.am-decode {
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 0.85rem;
  padding: 1.4rem;
  text-align: center;
  cursor: pointer;
  background:
    repeating-linear-gradient(to bottom, rgba(62, 230, 212, 0.045) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse at 50% 50%, #0d1620, #06060b 76%);
}

.am-decode__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-3);
}

.am-decode__line {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2.4vw, 1.55rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--cyan);
  text-shadow: 0 0 24px rgba(62, 230, 212, 0.45);
  min-height: 1.4em;
  word-break: break-word;
}

/* ---------------------------------------------------------
   11. Statement scrub
   --------------------------------------------------------- */
.am-statement {
  position: relative;
  padding: clamp(5rem, 14vw, 11rem) 0;
  overflow: hidden;
}

.am-statement::before {
  content: '';
  position: absolute;
  inset: 0 calc(50% - 50vw);
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(139, 108, 255, 0.13), transparent 70%),
    var(--bg-2);
  border-block: 1px solid var(--line-soft);
  z-index: -1;
}

.am-statement__inner { width: var(--shell); margin-inline: auto; }

.am-statement h2 {
  font-size: clamp(2rem, 6vw, 4.6rem);
  line-height: 1.1;
  max-width: 20ch;
}

.am-statement__word {
  display: inline-block;
  color: var(--text-3);
  opacity: 0.32;
  transition: color 0.5s var(--ease-out), opacity 0.5s var(--ease-out);
}

.am-statement__word.is-lit { color: var(--text); opacity: 1; }
.am-statement__word.is-lit.is-key { color: var(--cyan); }

/* ---------------------------------------------------------
   12. Playground cards
   --------------------------------------------------------- */
.am-deep {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr));
  gap: clamp(1rem, 1.8vw, 1.5rem);
}

.am-deep__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.7rem 1.6rem 1.5rem;
  min-height: 290px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--surface-2), var(--surface));
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.5s var(--ease-out), border-color 0.4s, box-shadow 0.5s;
}

.am-deep__card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(139, 108, 255, 0.22), transparent 62%);
  opacity: 0;
  transition: opacity 0.45s;
}

.am-deep__card:hover { transform: translateY(-6px); border-color: var(--line-strong); box-shadow: 0 40px 80px -50px #000; }
.am-deep__card:hover::before { opacity: 1; }

.am-deep__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--text-3);
}

.am-deep__card h3 { font-size: 1.32rem; }
.am-deep__card p { color: var(--text-2); font-size: 0.9rem; }

.am-deep__link {
  margin-top: auto;
  padding-top: 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.89rem;
  color: var(--cyan);
}

.am-deep__link svg { width: 15px; height: 15px; transition: transform 0.4s var(--ease-spring); }
.am-deep__card:hover .am-deep__link svg { transform: translateX(5px); }

.am-deep__viz {
  position: absolute;
  right: -18%;
  bottom: -22%;
  width: 210px; height: 210px;
  z-index: -1;
  opacity: 0.3;
  filter: blur(0.5px);
  pointer-events: none;
  transition: opacity 0.5s, transform 0.7s var(--ease-out);
}

.am-deep__card:hover .am-deep__viz { opacity: 0.6; transform: scale(1.1) rotate(-8deg); }

/* ---------------------------------------------------------
   13. Process timeline
   --------------------------------------------------------- */
.am-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.2rem, 2.4vw, 2.4rem);
  padding-top: 3.4rem;
}

.am-timeline__rail {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--line);
  border-radius: 100px;
  overflow: hidden;
}

.am-timeline__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--grad-brand);
  box-shadow: 0 0 16px rgba(62, 230, 212, 0.6);
}

.am-step { position: relative; }

.am-step::before {
  content: '';
  position: absolute;
  top: -3.85rem;
  left: 0;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--surface-3);
  border: 2px solid var(--line-strong);
  transition: background 0.5s, border-color 0.5s, box-shadow 0.5s;
}

.am-step.is-in::before { background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 16px rgba(62, 230, 212, 0.7); }

.am-step__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.am-step h3 { font-size: 1.2rem; margin: 0.5rem 0 0.5rem; }
.am-step p { color: var(--text-2); font-size: 0.89rem; }

/* ---------------------------------------------------------
   14. Stack row
   --------------------------------------------------------- */
.am-stack { display: flex; flex-wrap: wrap; gap: 0.55rem; }

.am-stack span {
  padding: 0.52rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.77rem;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
  transition: color 0.3s, border-color 0.3s, transform 0.35s var(--ease-spring);
}

.am-stack span:hover { color: var(--text); border-color: rgba(62, 230, 212, 0.45); transform: translateY(-3px); }

/* ---------------------------------------------------------
   15. FAQ
   --------------------------------------------------------- */
.am-faq { display: grid; gap: 0.9rem; }

.am-faq__item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(165deg, var(--surface-2), var(--surface));
  transition: border-color 0.3s;
}

.am-faq__item:hover { border-color: var(--line-strong); }

.am-faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 1.1rem 1.4rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--text);
  list-style: none;
}

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

.am-faq__icon {
  flex: none;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line);
  position: relative;
  transition: transform 0.3s var(--ease-out), border-color 0.3s, background 0.3s;
}

.am-faq__icon::before,
.am-faq__icon::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  background: var(--text-2);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease-out), opacity 0.2s;
}

.am-faq__icon::before { width: 10px; height: 1.5px; }
.am-faq__icon::after { width: 1.5px; height: 10px; }

.am-faq__item[open] .am-faq__icon { border-color: rgba(62, 230, 212, 0.5); background: rgba(62, 230, 212, 0.08); }
.am-faq__item[open] .am-faq__icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.am-faq__body { padding: 0 1.4rem 1.3rem; color: var(--text-2); }
.am-faq__body p { max-width: 68ch; }
.am-faq__body code { font-family: var(--font-mono); font-size: 0.85em; background: rgba(255, 255, 255, 0.07); padding: 0.15em 0.4em; border-radius: 5px; }
.am-faq__body a { color: var(--cyan); text-decoration: underline; text-underline-offset: 2px; }
.am-faq__body a:hover { color: var(--text); }

/* ---------------------------------------------------------
   16. Contact CTA
   --------------------------------------------------------- */
.am-cta {
  text-align: center;
  max-width: 62ch;
  margin-inline: auto;
  padding: clamp(2.4rem, 6vw, 4.2rem) clamp(1.6rem, 4vw, 3.2rem);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(ellipse 70% 100% at 50% 0%, rgba(139, 108, 255, 0.16), transparent 62%),
    linear-gradient(165deg, var(--surface-2), var(--surface));
}

.am-cta h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); margin-top: 0.7rem; }
.am-cta__sub { color: var(--text-2); margin: 1.1rem auto 2rem; max-width: 44ch; }

.am-cta__points {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.6rem;
  margin-top: 2.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line-soft);
}

.am-cta__points li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.85rem;
  color: var(--text-2);
}

.am-cta__points svg { flex: none; width: 16px; height: 16px; color: var(--cyan); }

/* ---------------------------------------------------------
   17. Footer & back-to-top
   --------------------------------------------------------- */
.am-footer {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-2);
  padding: 3.2rem 0 2.6rem;
}

.am-footer__inner {
  width: var(--shell);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1.3rem;
  align-items: center;
  justify-content: space-between;
}

.am-footer p { color: var(--text-3); font-size: 0.85rem; max-width: 48ch; }

.am-totop {
  position: fixed;
  right: 1.3rem;
  bottom: 1.3rem;
  z-index: 400;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(16, 16, 25, 0.88);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.35s, visibility 0.35s, transform 0.35s var(--ease-spring), border-color 0.3s;
}

.am-totop.is-visible { opacity: 1; visibility: visible; transform: none; }
.am-totop:hover { border-color: rgba(62, 230, 212, 0.55); }
.am-totop svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.am-totop span { position: relative; font-size: 1rem; line-height: 1; }

/* ---------------------------------------------------------
   18. Responsive
   --------------------------------------------------------- */
@media (max-width: 1080px) {
  .am-hero__inner { grid-template-columns: 1fr; gap: 2.6rem; }
  .am-globe__stage { max-width: 460px; }
  .am-lab,
  .am-lab[data-span='wide'] { grid-column: span 3; }
  .am-lab[data-span='full'] { grid-column: span 6; }
  .am-timeline { grid-template-columns: repeat(2, 1fr); row-gap: 2.4rem; }
}

@media (max-width: 820px) {
  :root { --shell: min(1280px, 92vw); }

  .am-section__head { grid-template-columns: 1fr; align-items: start; }
  .am-labs { grid-template-columns: repeat(2, 1fr); }
  .am-lab,
  .am-lab[data-span='wide'],
  .am-lab[data-span='full'] { grid-column: span 2; }
  .am-lab[data-span='full'] .am-lab__stage { aspect-ratio: 16 / 9; }
}

@media (max-width: 620px) {
  .am-labs { grid-template-columns: 1fr; }
  .am-lab,
  .am-lab[data-span='wide'],
  .am-lab[data-span='full'] { grid-column: span 1; }
  .am-lab__stage,
  .am-lab[data-span='wide'] .am-lab__stage,
  .am-lab[data-span='full'] .am-lab__stage { aspect-ratio: 4 / 3; }
  .am-timeline { grid-template-columns: 1fr; }
  .am-hero__meta { gap: 1.5rem; }
  .am-footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ---------------------------------------------------------
   19. Reduced motion
   --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  html.am-js .am-reveal,
  html.am-js .am-line > span {
    opacity: 1 !important;
    transform: none !important;
  }

  .am-marquee__track { animation: none; }
  .am-cursor { display: none; }
}