/* ============================================================
   ArgoNet — presentation site
   Cinematic premium UI: masks, tilt, parallax, custom timing
   ============================================================ */

/* --- Tokens ------------------------------------------------- */
:root{
  /* palette */
  --bg-0:#07070d;
  --bg-1:#0b0b16;
  --bg-2:#12121f;
  --bg-3:#191926;
  --surface:rgba(255,255,255,.035);
  --surface-hi:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.08);
  --border-hi:rgba(255,255,255,.14);
  --text:#f4f4fa;
  --text-2:#c9c9d6;
  --text-dim:#8a8a9c;
  --text-mute:#5a5a70;

  --indigo:#6366f1;
  --violet:#8b5cf6;
  --fuchsia:#d946ef;
  --brand-grad:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#d946ef 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(99,102,241,.18),rgba(217,70,239,.18));
  --brand-glow:0 0 60px rgba(139,92,246,.35);
  --brand-halo:0 0 120px 20px rgba(139,92,246,.28);

  /* type */
  --font-sans:"IBM Plex Sans","Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font-display:"IBM Plex Sans","Inter",system-ui,sans-serif;

  /* timing — cinematic curves */
  --ease-out-expo:cubic-bezier(.16,1,.3,1);      /* content reveal, hero entrance */
  --ease-out-quart:cubic-bezier(.25,1,.5,1);     /* smooth entrance */
  --ease-in-out-cubic:cubic-bezier(.65,0,.35,1); /* state changes */
  --ease-spring:cubic-bezier(.34,1.56,.64,1);    /* pop-in cards */
  --ease-glide:cubic-bezier(.22,1,.36,1);        /* long glides */
  --ease-brake:cubic-bezier(.7,0,.3,1);          /* fast then slow */

  --dur-fast:220ms;
  --dur-med:520ms;
  --dur-slow:900ms;
  --dur-cine:1400ms;
  --dur-epic:2200ms;

  /* layout */
  --wrap:1200px;
  --gutter:clamp(20px,4vw,48px);
  --radius:14px;
  --radius-lg:22px;
}

/* --- @property registrations --- */
@property --pan-x { syntax: '<length>'; inherits: false; initial-value: 0px; }
@property --pan-y { syntax: '<length>'; inherits: false; initial-value: 0px; }
@property --mag-x { syntax: '<length>'; inherits: false; initial-value: 0px; }
@property --mag-y { syntax: '<length>'; inherits: false; initial-value: 0px; }

/* --- Reset -------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.55;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;letter-spacing:-.02em;margin:0}
p{margin:0}
::selection{background:rgba(217,70,239,.35);color:#fff}

/* --- Ambient background layer -------------------------------
   Painted ONCE, never re-painted on scroll (no filters, no anim). */
.ambient{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(99,102,241,.22), transparent 60%),
    radial-gradient(1000px 600px at 100% 10%, rgba(217,70,239,.16), transparent 55%),
    radial-gradient(900px 500px at 50% 100%, rgba(139,92,246,.14), transparent 55%),
    var(--bg-0);
}

/* --- Cursor spotlight ---------------------------------------
   Single fixed layer, plain alpha blend. Zero mix-blend-mode cost. */
.spotlight{
  --x:50vw;--y:50vh;
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(320px 320px at var(--x) var(--y),
      rgba(217,70,239,.18), transparent 60%),
    radial-gradient(600px 600px at var(--x) var(--y),
      rgba(99,102,241,.10), transparent 65%);
}
@media (hover:none){ .spotlight{ display:none } }

/* --- Scroll progress bar ------------------------------------ */
.scroll-progress{
  --p:0;
  position:fixed;top:0;left:0;right:0;height:2px;z-index:60;
  background:transparent;pointer-events:none;
}
.scroll-progress::before{
  content:"";display:block;height:100%;
  width:100%;
  transform-origin:left center;
  transform:scaleX(var(--p));
  background:var(--brand-grad);
  box-shadow:0 0 12px rgba(217,70,239,.55);
  will-change:transform;
}

/* --- Container ---------------------------------------------- */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter);position:relative}

/* --- Navigation --------------------------------------------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding:16px 0;
  transition:padding .35s var(--ease-out-quart),background .35s var(--ease-out-quart);
  backdrop-filter:blur(0px);
}
.nav.is-scrolled{
  padding:10px 0;
  background:rgba(11,11,22,.82);
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-brand{display:flex;align-items:center;gap:10px;font-weight:600}
.nav-brand svg{width:32px;height:32px}
.nav-brand span{font-size:15px;letter-spacing:.02em}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a:not(.nav-cta){
  font-size:14px;color:var(--text-2);
  position:relative;padding:6px 0;
  transition:color .25s var(--ease-out-quart);
}
.nav-links a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--brand-grad);
  transition:width .4s var(--ease-out-expo);
}
.nav-links a:not(.nav-cta):hover{color:var(--text)}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{
  padding:10px 18px;border-radius:999px;
  background:var(--brand-grad);color:#fff;font-weight:500;font-size:13.5px;
  box-shadow:0 8px 24px -8px rgba(139,92,246,.55);
  transition:transform .35s var(--ease-spring),box-shadow .35s var(--ease-out-quart);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 34px -10px rgba(139,92,246,.75)}
@media (max-width:768px){.nav-links a:not(.nav-cta){display:none}}

/* --- Buttons ------------------------------------------------ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-size:15px;font-weight:500;
  transition:transform .3s var(--ease-spring),box-shadow .35s var(--ease-out-quart),background .3s ease;
}
.btn-primary{
  --mag-x:0px;--mag-y:0px;
  background:var(--brand-grad);color:#fff;
  box-shadow:0 12px 30px -10px rgba(139,92,246,.65),inset 0 1px 0 rgba(255,255,255,.15);
  transform:translate3d(var(--mag-x),var(--mag-y),0);
}
.btn-primary{position:relative;overflow:hidden;isolation:isolate}
.btn-primary::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:-1;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-120%);
  transition:transform .8s var(--ease-out-quart);
}
.btn-primary:hover::before{transform:translateX(120%)}
.btn-primary:hover{transform:translate3d(var(--mag-x),calc(var(--mag-y) - 2px),0) scale(1.02);box-shadow:0 20px 46px -10px rgba(139,92,246,.95)}
.btn-ghost{
  background:var(--surface);color:var(--text);
  border:1px solid var(--border-hi);
}
.btn-ghost:hover{background:var(--surface-hi);transform:translateY(-2px)}
.btn svg{width:16px;height:16px}

/* --- Section shell + reveal --------------------------------- */
section{position:relative;padding:clamp(90px,12vw,160px) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;
  color:var(--text-dim);letter-spacing:.16em;text-transform:uppercase;
  padding:6px 12px;border:1px solid var(--border);border-radius:999px;
  background:var(--surface);
  margin-bottom:22px;
  position:relative;
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--brand-grad);
  box-shadow:0 0 12px rgba(217,70,239,.7);
  position:relative;
}
.eyebrow::after{
  content:"";position:absolute;left:12px;top:50%;
  width:7px;height:7px;border-radius:50%;
  background:rgba(217,70,239,.5);
  transform:translateY(-50%) scale(1);
  animation:signalPulse 2.4s ease-out infinite;
  will-change:transform,opacity;
  pointer-events:none;
}
/* transform+opacity only → compositor-only, no repaint */
@keyframes signalPulse{
  0%   { transform:translateY(-50%) scale(.4); opacity:.8; }
  70%,100% { transform:translateY(-50%) scale(2.6); opacity:0; }
}
h2.section-title{
  font-size:clamp(34px,5vw,58px);
  line-height:1.05;letter-spacing:-.03em;
  max-width:720px;margin-bottom:18px;
}
h2.section-title em{
  font-style:normal;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-lede{font-size:clamp(16px,1.4vw,19px);color:var(--text-2);max-width:640px}

/* reveal — masked slide-up */
.reveal{opacity:0;transform:translateY(38px);transition:opacity var(--dur-slow) var(--ease-out-expo),transform var(--dur-slow) var(--ease-out-expo)}
.reveal.in{opacity:1;transform:none}
.reveal.-delay-1{transition-delay:.12s}
.reveal.-delay-2{transition-delay:.24s}
.reveal.-delay-3{transition-delay:.36s}
.reveal.-delay-4{transition-delay:.48s}
.reveal.-delay-5{transition-delay:.6s}

/* mask reveal — clip-path wipe left-to-right */
.mask-reveal{
  clip-path:inset(0 100% 0 0);
  transition:clip-path 1.4s var(--ease-brake);
}
.mask-reveal.in{clip-path:inset(0 0 0 0)}

/* section transition — fade edges between sections */
section::before{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background:linear-gradient(to bottom,var(--bg-0),transparent);
  opacity:.6;z-index:1;
}

/* --- HERO --------------------------------------------------- */
.hero{
  min-height:100vh;padding-top:140px;padding-bottom:90px;
  display:flex;align-items:center;
  overflow:hidden;
  position:relative;
}
.hero::before{display:none}
.hero-bg{
  position:absolute;inset:-10%;z-index:-1;
  pointer-events:none;
}
/* HyperFrames aurora video — replaces CSS orbs once loaded */
.hero-video{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;
  opacity:0;
  transition:opacity 1.2s var(--ease-out-quart);
  will-change:opacity;
}
.hero-video.loaded{opacity:.9}
.hero-bg.has-video .hero-orb{
  opacity:.25;
  transition:opacity 1.2s var(--ease-out-quart);
}
/* Orbs — GPU-only compositor animation. No JS transforms.
   The animation runs on the compositor thread → zero main-thread cost. */
.hero-orb{
  position:absolute;border-radius:50%;
  will-change:transform;
  transform:translate3d(0,0,0);
}
.hero-orb.a{
  width:680px;height:680px;top:-16%;left:-16%;
  background:radial-gradient(closest-side, rgba(99,102,241,.55), rgba(99,102,241,0) 70%);
  animation:orbFloatA 26s ease-in-out infinite;
}
.hero-orb.b{
  width:760px;height:760px;top:4%;right:-20%;
  background:radial-gradient(closest-side, rgba(217,70,239,.42), rgba(217,70,239,0) 70%);
  animation:orbFloatB 34s ease-in-out infinite;
}
.hero-orb.c{
  width:560px;height:560px;bottom:-20%;left:26%;
  background:radial-gradient(closest-side, rgba(139,92,246,.48), rgba(139,92,246,0) 70%);
  animation:orbFloatC 30s ease-in-out infinite;
}
@keyframes orbFloatA{
  0%,100%{ transform:translate3d(0,0,0) scale(1); }
  33%    { transform:translate3d(60px,-40px,0) scale(1.08); }
  66%    { transform:translate3d(-30px,50px,0) scale(.96); }
}
@keyframes orbFloatB{
  0%,100%{ transform:translate3d(0,0,0) scale(1); }
  25%    { transform:translate3d(-50px,30px,0) scale(1.05); }
  50%    { transform:translate3d(40px,60px,0) scale(.94); }
  75%    { transform:translate3d(-20px,-40px,0) scale(1.1); }
}
@keyframes orbFloatC{
  0%,100%{ transform:translate3d(0,0,0) scale(1); }
  40%    { transform:translate3d(70px,-30px,0) scale(1.06); }
  70%    { transform:translate3d(-40px,20px,0) scale(.98); }
}

/* --- Orbit rings behind hero mark ---------------------------- */
.hero-orbit{
  position:absolute;left:50%;top:50%;pointer-events:none;
  transform:translate(-50%,-50%);z-index:-1;
}
.hero-orbit i{
  position:absolute;left:50%;top:50%;
  border:1px solid rgba(139,92,246,.18);
  border-radius:50%;
  transform:translate(-50%,-50%);
  will-change:transform;
}
.hero-orbit i:nth-child(1){width:180px;height:180px;animation:ringSpin 22s linear infinite}
.hero-orbit i:nth-child(2){width:280px;height:280px;border-color:rgba(217,70,239,.14);animation:ringSpin 34s linear infinite reverse}
.hero-orbit i:nth-child(3){width:420px;height:420px;border-color:rgba(99,102,241,.10);animation:ringSpin 46s linear infinite}
.hero-orbit i::before{
  content:"";position:absolute;top:-3px;left:50%;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-grad);
  box-shadow:0 0 12px rgba(217,70,239,.6);
  transform:translateX(-50%);
}
@keyframes ringSpin{ to { transform:translate(-50%,-50%) rotate(360deg); } }

.hero-grid{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
}

.hero-inner{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto}
.hero-mark{
  width:110px;height:110px;margin:0 auto 34px;
  transform-origin:center;
  position:relative;
  border-radius:50%;
  box-shadow:0 12px 30px rgba(139,92,246,.35),0 0 60px rgba(217,70,239,.28);
  animation:markPulse 6s ease-in-out infinite;
  will-change:transform;
}
.hero-mark img{width:100%;height:100%}
.hero-mark svg{width:100%;height:100%}
/* transform-only pulse — GPU compositor, no filter re-apply per frame */
@keyframes markPulse{
  0%,100%{ transform:scale(1) translate3d(0,0,0); }
  50%    { transform:scale(1.06) translate3d(0,0,0); }
}

.hero-tagline{
  display:inline-block;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--text-dim);
  padding:8px 16px;border:1px solid var(--border);border-radius:999px;
  background:var(--surface);
  margin-bottom:26px;
}
.hero-tagline b{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:500}

.hero-title{
  font-size:clamp(44px,7.2vw,96px);
  line-height:1.02;letter-spacing:-.04em;font-weight:600;
  margin-bottom:24px;
}
.hero-title .word{
  display:inline-block;
  vertical-align:baseline;
}
.hero-title .char{
  display:inline-block;
  opacity:0;
  transform:translate3d(0,60px,0) rotate(-6deg);
  animation:charIn 900ms var(--ease-out-expo) forwards;
  will-change:transform,opacity;
}
.hero-title .word.grad .char{
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
@keyframes charIn{
  to{ opacity:1; transform:translate3d(0,0,0) rotate(0); }
}
@keyframes wordIn{to{opacity:1;transform:none}}

.hero-sub{
  font-size:clamp(17px,1.5vw,21px);color:var(--text-2);
  max-width:640px;margin:0 auto 40px;
  opacity:0;transform:translateY(20px);
  animation:wordIn 1s var(--ease-out-expo) forwards;animation-delay:.95s;
}
.hero-cta{
  display:flex;gap:14px;justify-content:center;flex-wrap:wrap;
  opacity:0;transform:translateY(20px);
  animation:wordIn 1s var(--ease-out-expo) forwards;animation-delay:1.1s;
}

.hero-stats{
  display:flex;gap:60px;justify-content:center;flex-wrap:wrap;
  margin-top:80px;padding-top:40px;
  border-top:1px solid var(--border);
  opacity:0;
  animation:wordIn 1s var(--ease-out-expo) forwards;animation-delay:1.5s;
}
.hero-stats .stat{text-align:center}
.hero-stats .num{
  font-size:32px;font-weight:600;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stats .lbl{font-size:12px;color:var(--text-dim);letter-spacing:.14em;text-transform:uppercase;margin-top:4px}

.hero-scroll{
  position:absolute;left:50%;bottom:24px;transform:translateX(-50%);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;color:var(--text-mute);
  text-transform:uppercase;
  opacity:0;
  animation:wordIn 1s ease forwards;animation-delay:1.8s;
}
.hero-scroll::after{
  content:"";display:block;width:1px;height:36px;margin:10px auto 0;
  background:linear-gradient(to bottom,var(--text-mute),transparent);
  animation:scrollDot 2.4s ease-in-out infinite;
}
@keyframes scrollDot{
  0%{transform:scaleY(0);transform-origin:top}
  50%{transform:scaleY(1);transform-origin:top}
  50.01%{transform-origin:bottom}
  100%{transform:scaleY(0);transform-origin:bottom}
}

/* --- Manifesto ---------------------------------------------- */
.manifesto{text-align:center}
.manifesto-quote{
  font-family:var(--font-display);
  font-size:clamp(30px,4.5vw,54px);
  line-height:1.15;letter-spacing:-.02em;font-weight:500;
  max-width:920px;margin:0 auto;
  color:var(--text-2);
}
.manifesto-quote .grad{
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.manifesto-caption{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--text-mute);margin-top:38px;
}

/* --- Ecosystem (3 tilt cards) ------------------------------- */
.eco-head{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:60px}
.eco-grid{
  display:grid;gap:26px;
  grid-template-columns:repeat(3,1fr);
}
@media (max-width:960px){.eco-grid{grid-template-columns:1fr}}

.tilt-card{
  --tilt-x:0deg;--tilt-y:0deg;--tilt-lift:0px;--glow-x:50%;--glow-y:50%;
  position:relative;
  padding:38px 32px 36px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,24,42,.85),rgba(11,11,22,.9));
  border:1px solid var(--border);
  overflow:hidden;
  transform-style:preserve-3d;
  transform:perspective(1200px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) translateZ(var(--tilt-lift));
  transition:border-color .4s ease;
  will-change:transform;
  contain:layout paint;
}
.tilt-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(500px circle at var(--glow-x) var(--glow-y),rgba(139,92,246,.22),transparent 45%);
  opacity:0;transition:opacity .5s ease;
}
.tilt-card:hover{border-color:var(--border-hi)}
.tilt-card:hover::before{opacity:1}
.tilt-card > *{transform:translateZ(20px)}
.tilt-card .card-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--brand-grad-soft);
  border:1px solid var(--border-hi);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:22px;
  transform:translateZ(40px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.tilt-card .card-icon svg{width:24px;height:24px;color:#fff;opacity:.95}
.tilt-card h3{font-size:22px;margin-bottom:10px;transform:translateZ(30px)}
.tilt-card .card-tag{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--text-dim);margin-bottom:14px;transform:translateZ(30px);
}
.tilt-card p{color:var(--text-2);font-size:14.5px;line-height:1.65;margin-bottom:22px;transform:translateZ(15px)}
.tilt-card ul{list-style:none;padding:0;margin:0;transform:translateZ(15px)}
.tilt-card ul li{
  font-size:13.5px;color:var(--text-2);
  padding:6px 0 6px 24px;position:relative;
}
.tilt-card ul li::before{
  content:"";position:absolute;left:0;top:12px;width:14px;height:2px;
  background:var(--brand-grad);border-radius:2px;
}

/* --- Features grid (pan on hover) --------------------------- */
.features-head{text-align:center;margin-bottom:70px}
.features-head .section-title,.features-head .section-lede{margin-left:auto;margin-right:auto}
.features-head .section-lede{text-align:center}

.feat-grid{
  display:grid;gap:22px;
  grid-template-columns:repeat(3,1fr);
}
@media (max-width:960px){.feat-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.feat-grid{grid-template-columns:1fr}}

.feat{
  position:relative;overflow:hidden;
  padding:28px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);
  transition:border-color .4s var(--ease-out-quart),transform .5s var(--ease-out-quart);
  contain:layout paint;
}
.feat::after{
  content:"";position:absolute;inset:auto -30% -60% -30%;height:60%;
  background:radial-gradient(closest-side,rgba(139,92,246,.25),transparent 70%);
  opacity:0;transition:opacity .5s ease,transform 1.2s var(--ease-glide);
  transform:translateY(30%);
}
.feat:hover{border-color:var(--border-hi);transform:translateY(-4px)}
.feat:hover::after{opacity:1;transform:translateY(0)}
.feat .feat-icon{
  width:40px;height:40px;border-radius:10px;
  background:var(--brand-grad-soft);border:1px solid var(--border-hi);
  display:flex;align-items:center;justify-content:center;color:#fff;
  margin-bottom:16px;
  transition:transform .6s var(--ease-spring);
}
.feat:hover .feat-icon{transform:scale(1.08) rotate(-4deg)}
.feat .feat-icon svg{width:20px;height:20px}
.feat h4{font-size:16px;margin-bottom:8px}
.feat p{font-size:14px;color:var(--text-2);line-height:1.6}

/* --- How it works timeline ---------------------------------- */
.how{position:relative}
.how-grid{
  display:grid;gap:34px;
  grid-template-columns:repeat(4,1fr);
  margin-top:60px;
  counter-reset:step;
}
@media (max-width:960px){.how-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.how-grid{grid-template-columns:1fr}}

.step{
  position:relative;padding:32px 24px 28px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,24,42,.6),rgba(11,11,22,.4));
  border:1px solid var(--border);
}
.step::before{
  counter-increment:step;
  content:"0"counter(step);
  position:absolute;top:20px;right:22px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--text-mute);
}
.step .step-dot{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px -8px rgba(139,92,246,.6);
  margin-bottom:20px;color:#fff;
}
.step .step-dot svg{width:22px;height:22px}
.step h4{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.6}

/* --- Showcase (pan+zoom mockup) ----------------------------- */
.showcase{position:relative}
.showcase-head{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:60px}
.showcase-head .section-title,.showcase-head .section-lede{max-width:640px}

.stage{
  position:relative;
  border-radius:26px;
  background:linear-gradient(160deg,rgba(24,24,42,.7),rgba(11,11,22,.4));
  border:1px solid var(--border);
  padding:14px;
  overflow:hidden;
  box-shadow:0 40px 100px -30px rgba(139,92,246,.35),0 0 0 1px rgba(255,255,255,.03) inset;
}
.stage::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(1200px 500px at 50% -20%,rgba(139,92,246,.28),transparent 60%);
  z-index:2;
}
.stage-inner{
  position:relative;overflow:hidden;border-radius:16px;
  aspect-ratio:16/9.5;
  background:#0b0b16;
}
.stage-img{
  --pan-x:0px;--pan-y:0px;
  position:absolute;inset:0;width:100%;height:100%;
  transform:scale(1.15) translate3d(0,0,0);
  will-change:transform;
}
/* Entrance: one-shot keyframe (no ping-pong scroll interpolation).
   Ends at scale(1.03) with pan vars applied — from there scroll drives it. */
.stage.in .stage-img{
  animation:stageEntrance var(--dur-epic) var(--ease-out-expo) forwards;
}
@keyframes stageEntrance{
  to{ transform:scale(1.03) translate3d(var(--pan-x), var(--pan-y), 0); }
}
.stage-img svg{width:100%;height:100%;display:block}

/* browser chrome cinema look */
.chrome{
  position:absolute;top:0;left:0;right:0;height:36px;
  display:flex;align-items:center;gap:8px;padding:0 14px;
  background:rgba(16,16,28,.7);
  border-bottom:1px solid rgba(255,255,255,.06);
  z-index:3;
}
.chrome i{width:10px;height:10px;border-radius:50%;background:#3a3a4c}
.chrome i:nth-child(1){background:#ff5f57}
.chrome i:nth-child(2){background:#febc2e}
.chrome i:nth-child(3){background:#28c840}
.chrome span{
  margin-left:auto;margin-right:auto;
  font-family:var(--font-mono);font-size:11px;color:var(--text-mute);
}

/* thumbnail row under stage */
.thumbs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
  margin-top:22px;
}
.thumb{
  padding:12px 14px;border-radius:12px;
  background:var(--surface);border:1px solid var(--border);
  cursor:pointer;
  transition:border-color .3s ease,background .3s ease,transform .4s var(--ease-out-quart);
}
.thumb:hover{border-color:var(--border-hi);background:var(--surface-hi);transform:translateY(-2px)}
.thumb.is-active{border-color:transparent;background:var(--brand-grad-soft);box-shadow:inset 0 0 0 1px rgba(217,70,239,.35)}
.thumb .t-tag{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--text-dim);text-transform:uppercase}
.thumb .t-title{font-size:14px;margin-top:4px;color:var(--text)}

/* --- CTA final ---------------------------------------------- */
.cta{
  position:relative;overflow:hidden;
  padding:clamp(80px,10vw,140px) 0;
}
.cta-card{
  position:relative;
  border-radius:26px;overflow:hidden;
  padding:clamp(48px,7vw,90px) clamp(28px,5vw,60px);
  background:linear-gradient(135deg,rgba(99,102,241,.16),rgba(217,70,239,.14));
  border:1px solid var(--border-hi);
  text-align:center;
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 400px at 20% 20%, rgba(99,102,241,.35), transparent 60%),
    radial-gradient(600px 400px at 80% 80%, rgba(217,70,239,.35), transparent 60%),
    radial-gradient(500px 350px at 50% 100%, rgba(139,92,246,.30), transparent 60%);
  z-index:-1;
}
.cta-card h2{font-size:clamp(30px,4.5vw,52px);line-height:1.05;margin-bottom:14px;letter-spacing:-.02em}
.cta-card p{color:var(--text-2);font-size:17px;max-width:520px;margin:0 auto 32px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* --- VALUES / Chi siamo -------------------------------------
   Mission + 3 valori — grid-based, cheap hover lift only */
.values-section{position:relative}
.values-head{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:20px}
.values-grid{
  display:grid;gap:22px;
  grid-template-columns:repeat(3,1fr);
  margin-top:48px;
}
@media (max-width:960px){.values-grid{grid-template-columns:1fr}}
.value{
  padding:32px 28px 30px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,24,42,.6),rgba(11,11,22,.35));
  border:1px solid var(--border);
  position:relative;overflow:hidden;
  transition:border-color .4s ease,transform .5s var(--ease-out-quart);
  contain:layout paint;
}
.value::before{
  content:"";position:absolute;top:-40%;right:-30%;
  width:280px;height:280px;
  background:radial-gradient(closest-side,rgba(139,92,246,.16),transparent 70%);
  opacity:0;transition:opacity .5s ease;
}
.value:hover{border-color:var(--border-hi);transform:translateY(-3px)}
.value:hover::before{opacity:1}
.value .value-num{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--text-dim);
  text-transform:uppercase;margin-bottom:18px;
  display:flex;align-items:center;gap:8px;
}
.value .value-num::before{
  content:"";width:22px;height:1px;background:var(--brand-grad);
}
.value h4{font-size:20px;margin-bottom:12px;letter-spacing:-.01em}
.value h4 span{
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.value p{font-size:14.5px;color:var(--text-2);line-height:1.65}

/* --- Ecosystem "card-ideal" tag ------------------------------ */
.tilt-card .card-ideal{
  margin-top:22px;padding-top:20px;
  border-top:1px dashed var(--border);
  font-size:12.5px;color:var(--text-dim);line-height:1.55;
  transform:translateZ(15px);
}
.tilt-card .card-ideal b{
  color:var(--text-2);font-weight:500;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* --- Testimonials ------------------------------------------- */
.testimonials{position:relative}
.testimonials-head{text-align:center;margin-bottom:56px}
.testimonials-head .section-title,.testimonials-head .section-lede{margin-left:auto;margin-right:auto}
.testimonials-head .section-lede{text-align:center}
.testimonials-grid{
  display:grid;gap:22px;
  grid-template-columns:repeat(3,1fr);
}
@media (max-width:960px){.testimonials-grid{grid-template-columns:1fr}}
.quote{
  position:relative;padding:44px 30px 30px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,24,42,.72),rgba(11,11,22,.4));
  border:1px solid var(--border);
  transition:border-color .4s ease,transform .5s var(--ease-out-quart);
  contain:layout paint;
}
.quote::before{
  content:"“";
  position:absolute;top:4px;left:24px;
  font-family:Georgia,"Times New Roman",serif;font-size:84px;line-height:1;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  opacity:.75;pointer-events:none;
}
.quote:hover{border-color:var(--border-hi);transform:translateY(-3px)}
.quote-text{
  font-size:15.5px;line-height:1.65;color:var(--text-2);
  margin:22px 0 26px;position:relative;z-index:1;
}
.quote-author{display:flex;align-items:center;gap:14px}
.quote-avatar{
  width:44px;height:44px;border-radius:50%;flex:none;
  background:var(--brand-grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:600;font-size:14px;letter-spacing:.02em;
  border:1px solid var(--border-hi);
  box-shadow:0 4px 14px -4px rgba(139,92,246,.5);
}
.quote-name{font-size:14.5px;color:var(--text);font-weight:500}
.quote-role{font-size:12.5px;color:var(--text-dim);letter-spacing:.02em;margin-top:2px}

/* --- FAQ ---------------------------------------------------- */
.faq{position:relative}
.faq-head{text-align:center;margin-bottom:48px}
.faq-head .section-title,.faq-head .section-lede{margin-left:auto;margin-right:auto}
.faq-head .section-lede{text-align:center}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);
  transition:border-color .4s ease,background .4s ease;
  overflow:hidden;
}
.faq-item[open]{
  border-color:var(--border-hi);
  background:linear-gradient(180deg,rgba(139,92,246,.07),rgba(255,255,255,.02));
}
.faq-item summary{
  cursor:pointer;list-style:none;
  padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  font-size:15.5px;font-weight:500;color:var(--text);
  transition:color .3s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{display:none;content:""}
.faq-item summary::after{
  content:"+";flex:none;
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:20px;font-weight:400;
  color:var(--text-dim);
  border:1px solid var(--border);
  transition:transform .35s var(--ease-out-quart),background .3s ease,color .3s ease,border-color .3s ease;
}
.faq-item:hover summary{color:var(--text)}
.faq-item[open] summary::after{
  content:"−";
  color:#fff;background:var(--brand-grad);border-color:transparent;
  transform:rotate(180deg);
}
.faq-item .faq-answer{
  padding:0 24px 22px;color:var(--text-2);font-size:14.5px;line-height:1.7;
}

/* --- Marquee band (security terms scroll) -------------------
   Pure GPU transform infinite loop. Zero JS. */
.marquee{
  position:relative;overflow:hidden;
  padding:26px 0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,rgba(24,24,42,.35),rgba(11,11,22,.25));
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee-track{
  display:flex;gap:60px;width:max-content;
  animation:marquee 42s linear infinite;
  will-change:transform;
}
.marquee-item{
  display:inline-flex;align-items:center;gap:14px;
  font-family:var(--font-mono);font-size:15px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-dim);
  white-space:nowrap;
}
.marquee-item b{
  color:var(--text);font-weight:500;
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.marquee-item::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--brand-grad);flex:none;
  box-shadow:0 0 12px rgba(217,70,239,.5);
}
@keyframes marquee{
  from{ transform:translate3d(0,0,0); }
  to  { transform:translate3d(-50%,0,0); }
}

/* --- Ecosystem connect lines (SVG draw-in) ------------------ */
.eco-wrap{position:relative}
.eco-connect{
  display:block;
  width:100%;height:80px;margin-bottom:-8px;
  pointer-events:none;overflow:visible;
}
.eco-connect path{
  fill:none;
  stroke:url(#connGrad);
  stroke-width:1.5;
  stroke-dasharray:1000;
  stroke-dashoffset:1000;
  transition:stroke-dashoffset 2.2s var(--ease-glide);
  filter:drop-shadow(0 0 8px rgba(139,92,246,.4));
}
.eco-connect.in path{stroke-dashoffset:0}
.eco-connect path:nth-child(2){transition-delay:.35s}
.eco-connect circle{
  fill:var(--fuchsia);
  opacity:0;
  transition:opacity .6s ease;
  transition-delay:1.6s;
}
.eco-connect.in circle{opacity:.9}
@media (max-width:960px){.eco-connect{display:none}}

/* --- Footer ------------------------------------------------- */
.foot{padding:60px 0 40px;border-top:1px solid var(--border);color:var(--text-dim);font-size:13.5px}
.foot-grid{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--text-2)}
.foot-brand svg{width:26px;height:26px}
.foot-links{display:flex;gap:24px}
.foot-links a{color:var(--text-dim);transition:color .25s ease}
.foot-links a:hover{color:var(--text)}

/* --- Parallax hooks -----------------------------------------
   No transition: JS updates every rAF; a transition would fight it. */
[data-parallax]{will-change:transform}

/* --- Reduced motion respect --------------------------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;scroll-behavior:auto!important;
  }
  .stage-img{transform:none!important}
  .hero-orb{transform:none!important}
  .spotlight{display:none}
  [data-parallax]{transform:none!important}
}