/* ============================================================
   TheAppGO — brand: navy scuro + lime #AACD05 (dalla presentazione)
   ============================================================ */
:root{
  --bg:#070B18;
  --bg-2:#0B1124;
  --card:#101736;
  --card-2:#0D1330;
  --line:rgba(170,205,5,.22);
  --line-soft:rgba(255,255,255,.08);
  --lime:#AACD05;
  --lime-dark:#8FB000;
  --ink:#F4F7FF;
  --ink-dim:#A8B0C8;
  --kicker:.72rem;
  --radius:14px;
  --maxw:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{font-family:"Space Grotesk","Inter",sans-serif;line-height:1.12;font-weight:700;letter-spacing:-.01em}
img{max-width:100%;display:block}
a{color:var(--lime)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- kicker / section labels ---------- */
.kicker{
  font-family:"Space Grotesk",monospace;
  font-size:var(--kicker);letter-spacing:.28em;text-transform:uppercase;
  color:var(--lime);font-weight:600;
}
.section-head{margin-bottom:44px;max-width:720px}
.section-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin:.55rem 0 .4rem}
.section-head h2 .accent{color:var(--lime)}
.section-head p{color:var(--ink-dim)}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,24,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:"Space Grotesk";font-weight:700;font-size:1.05rem}
.brand img{height:30px;width:auto}
.brand .go{color:var(--lime)}
.nav-links{display:flex;gap:22px;margin-left:auto}
.nav-links a{color:var(--ink-dim);text-decoration:none;font-size:.88rem;transition:color .15s}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--lime)}
.lang{display:flex;gap:4px;border:1px solid var(--line-soft);border-radius:99px;padding:3px}
.lang a{padding:3px 12px;border-radius:99px;font-size:.78rem;font-weight:600;text-decoration:none;color:var(--ink-dim)}
.lang a.active{background:var(--lime);color:#0A0E1E}
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  background:var(--lime);color:#0A0E1E;text-decoration:none;
  font-family:"Space Grotesk";font-weight:700;font-size:.95rem;
  padding:.8em 1.6em;border-radius:99px;border:none;cursor:pointer;
  transition:transform .15s,background .15s;
}
.btn:hover,.btn:focus-visible{background:#C2E51A;transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--lime);border:1px solid var(--line)}
.btn.ghost:hover{background:rgba(170,205,5,.08)}
.btn.small{padding:.55em 1.2em;font-size:.82rem}
@media(max-width:760px){.nav-links{display:none}}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 520px at 82% -10%, rgba(170,205,5,.13), transparent 60%),
    radial-gradient(700px 500px at -10% 110%, rgba(60,80,200,.14), transparent 60%),
    var(--bg);
  border-bottom:1px solid var(--line-soft);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:88px 0 72px}
.hero h1{font-size:clamp(2.3rem,5.2vw,3.7rem);margin:.9rem 0 1.1rem}
.hero h1 .accent{color:var(--lime)}
.hero p.lead{color:var(--ink-dim);font-size:1.08rem;max-width:34em}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:1.8rem 0 2rem}
.badges{display:flex;gap:10px;flex-wrap:wrap}
.pill{
  font-family:"Space Grotesk";font-size:.7rem;letter-spacing:.18em;font-weight:600;
  color:var(--lime);border:1px solid var(--line);border-radius:99px;
  padding:.5em 1.1em;background:rgba(170,205,5,.05);
}
.hero-visual{position:relative}
.hero-visual img.glasses{filter:drop-shadow(0 30px 60px rgba(0,0,0,.6));animation:float 7s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero-visual::after{
  content:"";position:absolute;inset:auto 10% -8% 10%;height:40px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(170,205,5,.25),transparent);filter:blur(8px);
}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;padding:56px 0 48px}.hero-visual{order:-1;max-width:420px;margin:0 auto}}

/* ---------- sections ---------- */
section{padding:88px 0}
section:nth-of-type(even){background:var(--bg-2)}
@media(max-width:760px){section{padding:60px 0}}

/* concept: senza / con */
.vs{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.vs-card{border:1px solid var(--line-soft);border-radius:var(--radius);padding:30px;background:var(--card-2)}
.vs-card.with{border-color:var(--line);background:linear-gradient(180deg,rgba(170,205,5,.07),transparent 55%),var(--card)}
.vs-card .tag{font-family:"Space Grotesk";font-size:.68rem;letter-spacing:.24em;font-weight:700;text-transform:uppercase;color:var(--ink-dim)}
.vs-card.with .tag{color:var(--lime)}
.vs-card h3{font-size:1.25rem;margin:.7rem 0 .6rem}
.vs-card p{color:var(--ink-dim);font-size:.95rem}
@media(max-width:760px){.vs{grid-template-columns:1fr}}

/* devices */
.devices{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.device{border:1px solid var(--line-soft);border-radius:var(--radius);padding:34px 30px;background:var(--card-2);text-align:left;transition:border-color .2s,transform .2s}
.device:hover{border-color:var(--line);transform:translateY(-4px)}
.device img{height:52px;width:auto;margin-bottom:18px}
.device .pill{display:inline-block;margin-bottom:14px}
.device h3{font-size:1.2rem;margin-bottom:.5rem}
.device p{color:var(--ink-dim);font-size:.95rem}
@media(max-width:760px){.devices{grid-template-columns:1fr}}

/* card grids (voce / display / esperto) */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{
  border:1px solid var(--line-soft);border-radius:var(--radius);
  background:var(--card-2);padding:26px;
  transition:border-color .2s,transform .2s;
}
.card:hover{border-color:var(--line);transform:translateY(-4px)}
.card .icon{
  width:52px;height:52px;border-radius:12px;display:grid;place-items:center;
  background:rgba(170,205,5,.08);border:1px solid var(--line);margin-bottom:16px;
}
.card .icon img{width:26px;height:26px}
.card h3{font-size:1.05rem;margin-bottom:.45rem}
.card p{color:var(--ink-dim);font-size:.92rem}
@media(max-width:960px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr}}

/* aibot languages */
.langs{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
.lang-pill{
  font-family:"Space Grotesk";font-weight:600;font-size:.92rem;
  border:1px solid var(--line);border-radius:99px;padding:.65em 1.6em;
  background:rgba(170,205,5,.05);color:var(--ink);
}
.note{
  border:1px solid var(--line-soft);border-left:none;border-radius:var(--radius);
  background:var(--card-2);padding:24px 28px;color:var(--ink-dim);font-size:.95rem;max-width:820px;
}
.note strong{color:var(--lime);font-family:"Space Grotesk";font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;display:block;margin-bottom:.5rem}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{position:relative;border:1px solid var(--line-soft);border-radius:var(--radius);background:var(--card-2);padding:26px;padding-top:64px}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;top:20px;left:24px;
  width:34px;height:34px;border-radius:50%;
  background:var(--lime);color:#0A0E1E;
  font-family:"Space Grotesk";font-weight:700;font-size:1rem;
  display:grid;place-items:center;
}
.step h3{font-size:1rem;margin-bottom:.4rem}
.step p{color:var(--ink-dim);font-size:.88rem}
@media(max-width:960px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}

/* ecosystem */
.eco{display:grid;gap:16px;max-width:860px}
.eco-row{
  display:flex;align-items:center;gap:20px;
  border:1px solid var(--line-soft);border-radius:var(--radius);
  background:var(--card-2);padding:22px 26px;
}
.eco-row .tag{
  font-family:"Space Grotesk";font-weight:700;font-size:.72rem;letter-spacing:.16em;
  background:var(--lime);color:#0A0E1E;border-radius:6px;padding:.45em .9em;white-space:nowrap;
}
.eco-row p{color:var(--ink-dim);font-size:.95rem}
.eco-foot{text-align:center;color:var(--lime);font-family:"Space Grotesk";font-size:.85rem;letter-spacing:.06em;border:1px dashed var(--line);border-radius:var(--radius);padding:16px}

/* contact / CTA */
.cta{
  text-align:center;
  background:
    radial-gradient(700px 400px at 50% 0%, rgba(170,205,5,.12), transparent 60%),
    var(--bg-2);
  border-top:1px solid var(--line-soft);
}
.cta h2{font-size:clamp(1.9rem,4vw,2.8rem);margin:.6rem 0 1rem}
.cta p{color:var(--ink-dim);max-width:36em;margin:0 auto 2rem}
.cta .hero-cta{justify-content:center}

/* footer */
footer{border-top:1px solid var(--line-soft);padding:32px 0;background:var(--bg)}
.foot{display:flex;align-items:center;gap:18px;flex-wrap:wrap;color:var(--ink-dim);font-size:.85rem}
.foot a{color:var(--ink-dim);text-decoration:none}
.foot a:hover{color:var(--lime)}
.foot .brand{font-size:.9rem}
.foot .spacer{margin-left:auto}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}