:root{
  --navy-950:#06101f;
  --navy-900:#0a182b;
  --navy-800:#0f2138;
  --navy-700:#173050;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --ink:#eaf1fb;
  --muted:#9fb2cc;
  --muted-2:#6f86a6;
  --azure:#4ea4ff;
  --azure-bright:#7cc0ff;
  --maxw:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Archivo',system-ui,sans-serif;
  background:var(--navy-950);
  color:var(--ink);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
a{color:inherit;text-decoration:none}
.exp{font-family:'Archivo Expanded','Archivo',sans-serif}

/* Page-wide particle network sits behind everything; content is transparent above it */
#pageNet{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
main,section{position:relative;z-index:1}

/* ---------- Header ---------- */
header.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .35s ease, border-color .35s ease, backdrop-filter .35s;
  border-bottom:1px solid transparent;
}
header.nav.scrolled{
  background:rgba(8,18,33,.82);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:inline-flex;align-items:center;line-height:0}
.brand img{height:26px;width:auto;display:block}
.nav-menu{display:flex;align-items:center;gap:34px}
.nav-menu a.link{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:.01em;transition:color .2s}
.nav-menu a.link:hover,.nav-menu a.link.active{color:var(--ink)}
.nav-cta{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13.5px;font-weight:600;letter-spacing:.02em;
  padding:11px 20px;border-radius:100px;
  background:var(--azure);color:#04111f;
  transition:transform .2s, box-shadow .2s, background .2s;
  box-shadow:0 6px 22px -8px rgba(78,164,255,.7);
}
.nav-cta:hover{transform:translateY(-1px);background:var(--azure-bright);box-shadow:0 10px 30px -8px rgba(78,164,255,.8)}
.nav-lang{font-size:13px;color:var(--muted-2);font-weight:600;display:inline-flex;align-items:center}
.nav-lang a{color:var(--muted-2);padding:0 7px;border-right:1px solid var(--line-strong);transition:color .2s}
.nav-lang a:last-child{border-right:none}
.nav-lang a:hover{color:var(--ink)}
.nav-lang a.cur{color:var(--azure-bright)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:11px;background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0}
.nav-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s, opacity .2s}
header.nav.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
header.nav.open .nav-toggle span:nth-child(2){opacity:0}
header.nav.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:15px;
  padding:15px 26px;border-radius:100px;background:var(--azure);color:#04111f;
  transition:transform .2s,background .2s,box-shadow .2s;box-shadow:0 10px 30px -10px rgba(78,164,255,.7);
}
.btn-primary:hover{transform:translateY(-2px);background:var(--azure-bright)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:15px;
  padding:15px 26px;border-radius:100px;color:var(--ink);
  border:1px solid var(--line-strong);transition:border-color .2s,background .2s}
.btn-ghost:hover{border-color:var(--azure);background:rgba(78,164,255,.08)}
.btn-row{margin-top:38px;display:flex;gap:16px;flex-wrap:wrap;align-items:center}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1!important;transform:none!important;transition:none!important} html{scroll-behavior:auto}}

/* ---------- Sub-hero ---------- */
.subhero{padding:172px 0 96px;border-bottom:1px solid var(--line);overflow:hidden;min-height:560px;display:flex;align-items:center}
.subhero .glow{position:absolute;top:-40%;right:-6%;width:60%;height:150%;z-index:-1;background:radial-gradient(closest-side,rgba(78,164,255,.16),transparent 70%);pointer-events:none}
.subhero-media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.subhero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.2s ease}
.subhero-video.is-playing{opacity:.62}
.subhero-video.bright{filter:brightness(1.45) contrast(1.02)}
.subhero-video.bright.is-playing{opacity:.85}
.subhero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,16,31,.5) 0%,rgba(6,16,31,.14) 40%,rgba(6,16,31,.32) 68%,rgba(6,16,31,1) 100%)}
.subhero > .wrap{width:100%}
.breadcrumb{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--azure-bright);margin-bottom:26px}
.breadcrumb a{color:var(--muted-2);transition:color .2s}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:var(--muted-2);opacity:.6}
.subhero h1{font-family:'Archivo Expanded','Archivo',sans-serif;font-weight:800;letter-spacing:-.025em;line-height:1.02;font-size:clamp(40px,5.6vw,82px)}
.subhero .tagline{margin-top:22px;font-family:'Archivo Expanded','Archivo',sans-serif;font-weight:600;font-size:clamp(20px,2.2vw,30px);letter-spacing:-.01em;color:var(--ink);max-width:22ch;line-height:1.18}
.subhero .tagline b{color:var(--azure)}
.subhero .lead{margin-top:22px;font-size:clamp(16px,1.5vw,20px);color:var(--muted);max-width:62ch}

/* ---------- Section heads ---------- */
.sec{padding:104px 0;border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:58px}
.tag{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--azure-bright);margin-bottom:20px}
.tag::before{content:"";width:30px;height:1px;background:var(--azure)}
.sec-head h2{font-family:'Archivo Expanded','Archivo',sans-serif;font-weight:700;font-size:clamp(28px,3.6vw,46px);letter-spacing:-.02em;line-height:1.08}
.sec-head p{margin-top:18px;font-size:clamp(15px,1.3vw,18px);color:var(--muted);max-width:62ch}

/* ---------- Feature grid ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.feat{background:rgba(10,24,43,.74);border:1px solid var(--line);border-radius:14px;overflow:hidden;padding:26px 24px;min-height:176px;display:flex;flex-direction:column;position:relative;transition:background .3s ease,border-color .3s ease}
.feat::after{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--azure);transition:width .4s ease}
.feat:hover{background:rgba(16,33,56,.9);border-color:var(--line-strong)}
.feat:hover::after{width:100%}
.feat .idx{font-size:12px;color:var(--azure-bright);font-variant-numeric:tabular-nums;letter-spacing:.08em;font-weight:600}
.feat h3{font-size:17.5px;font-weight:700;margin-top:auto;padding-top:22px;letter-spacing:-.01em;line-height:1.25}
.feat p{font-size:13.6px;color:var(--muted);margin-top:9px;line-height:1.52}

/* ---------- Related services ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:8px}
.rel-card{display:flex;flex-direction:column;justify-content:space-between;gap:28px;padding:24px 22px;border:1px solid var(--line);border-radius:14px;background:rgba(10,24,43,.6);min-height:128px;transition:border-color .25s,background .25s,transform .25s}
.rel-card:hover{border-color:var(--azure);background:rgba(16,33,56,.85);transform:translateY(-3px)}
.rel-card .rname{font-weight:700;font-size:16px;letter-spacing:-.01em;line-height:1.25}
.rel-card .rgo{color:var(--azure-bright);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:7px}

/* ---------- CTA ---------- */
.cta-band{padding:104px 0;border-bottom:1px solid var(--line)}
.cta-box{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line-strong);
  background:
    radial-gradient(120% 160% at 85% 0%,rgba(78,164,255,.22),transparent 55%),
    linear-gradient(150deg,#0e2240,#081523);
  padding:72px 64px;
}
.cta-box h2{font-family:'Archivo Expanded','Archivo',sans-serif;font-weight:800;font-size:clamp(28px,3.8vw,50px);letter-spacing:-.02em;line-height:1.05;max-width:20ch}
.cta-box p{margin-top:18px;color:var(--muted);font-size:18px;max-width:52ch}
.cta-grid-deco{position:absolute;inset:0;z-index:-1;opacity:.4;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(80% 80% at 90% 10%,#000,transparent 70%)}

/* ---------- Footer ---------- */
footer{background:var(--navy-950);border-top:1px solid var(--line);padding:72px 0 38px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.foot-logo img{height:30px;margin-bottom:20px}
.foot-grid p,.foot-grid a{font-size:14px;color:var(--muted);line-height:1.7}
.foot-grid a:hover{color:var(--azure-bright)}
.foot-col h5{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px;font-weight:600}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot-bottom{margin-top:54px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--muted-2)}
.socials{display:flex;gap:12px}
.socials a{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--muted);transition:.2s}
.socials a:hover{color:var(--azure-bright);border-color:var(--azure)}
.socials svg{width:17px;height:17px;fill:currentColor}

@media(max-width:1080px){
  .feat-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:980px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:78px;left:0;right:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(8,18,33,.97);backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid var(--line);
    padding:8px 24px 22px;
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:opacity .25s ease, transform .25s ease;
  }
  header.nav.open .nav-menu{opacity:1;transform:none;pointer-events:auto}
  .nav-menu a.link{padding:15px 2px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-menu .nav-lang{padding:15px 2px;border-bottom:1px solid var(--line)}
  .nav-menu .nav-cta{margin-top:16px;justify-content:center}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-box{padding:48px 28px}
  .sec,.cta-band{padding:72px 0}
  .subhero{padding:128px 0 64px;min-height:0}
  /* Su mobile il sub-hero e' piu' basso: schiarisco il video e ammorbidisco il velo
     scuro in basso, mantenendo contrasto sufficiente per il testo. */
  .subhero-video.is-playing{opacity:.7}
  .subhero-scrim{background:linear-gradient(180deg,rgba(6,16,31,.42) 0%,rgba(6,16,31,.12) 45%,rgba(6,16,31,.4) 78%,rgba(6,16,31,1) 100%)}
}
@media(max-width:760px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .wrap{padding:0 20px}
  .feat-grid,.rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}