/* ===================== BASE ===================== */
:root{
  --paper:#ece8e1;      /* beige del poster */
  --ink:#141414;        /* nero */
  --white:#ffffff;
  --card-radius:28px;
  --ease:cubic-bezier(.77,0,.18,1);
  --glow:90,160,255;    /* azzurro tecnologico: il linguaggio di tutto il sito */
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:auto}
body{
  font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
html.is-home{overflow:hidden}
.serif{
  font-family:Fraunces,"Cooper Black",Georgia,serif;
  font-weight:900;
  font-optical-sizing:auto;
  font-variation-settings:"SOFT" 100,"WONK" 1;
}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-weight:500;letter-spacing:.18em;text-transform:uppercase}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

/* ===================== INTRO ===================== */
.intro{height:200vh;position:relative}
.intro__stage{
  position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;
  background:var(--paper);
}
.intro__poster{
  position:relative;
  width:min(1100px,92vw);
  margin:0 auto;
  height:100%;
  display:flex;flex-direction:column;justify-content:center;
  padding-bottom:4vh;
}
.intro__think{
  font-size:clamp(44px,7vw,112px);
  line-height:1;letter-spacing:-.01em;
  margin:0 0 .1em .06em;
}
.intro__bigwrap{position:relative}
.intro__big{
  margin:0;
  font-size:clamp(150px,24vw,380px);
  line-height:.86;letter-spacing:-.045em;
  white-space:nowrap;
  color:var(--ink);
  will-change:left,top,font-size;
}
.intro__big .l{display:inline-block}
.intro__cols{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,48px);
  margin-top:clamp(18px,4vh,44px);
  font-size:clamp(12px,1.05vw,15px);line-height:1.45;font-weight:500;
  max-width:960px;
}
.intro__cols p{margin:0;text-wrap:balance}   /* righe bilanciate: bordi destri uniformi, spazi uguali fra le colonne */
.intro__cols b{font-weight:700}
.intro__hint{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;font-weight:600;
  display:flex;align-items:center;gap:10px;opacity:.8;
}
.intro__hint span{
  width:1px;height:34px;background:var(--ink);display:block;
  animation:drop 1.6s infinite var(--ease);transform-origin:top;
}
@keyframes drop{0%{transform:scaleY(0);opacity:0}30%{opacity:1}100%{transform:scaleY(1);opacity:0}}

@media (max-width:720px){
  .intro__cols{grid-template-columns:1fr;gap:10px;font-size:13px}
  .intro__cols p:nth-child(n+2){display:none}
  .intro__big{font-size:33vw}
}

/* ===================== HOME ===================== */
.home{
  position:fixed;inset:0;z-index:20;
  background:var(--white);
  opacity:0;pointer-events:none;
  display:flex;flex-direction:column;
}
.home.is-live{pointer-events:auto}
.topbar{
  position:absolute;top:0;left:0;right:0;z-index:3;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px clamp(18px,3vw,40px);
}
.logo{font-size:26px;letter-spacing:-.02em;line-height:1}
.topbar__nav{display:flex;align-items:center}

/* pillola "glow": pulsanti e link principali */
.pill{
  font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  border-radius:999px;padding:10px 18px;border:0;
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.06));color:var(--ink);
  box-shadow:0 0 0 1px rgba(var(--glow),.22),0 0 18px rgba(var(--glow),.18);
  transition:box-shadow .3s,background .3s,color .3s;
  display:inline-flex;gap:8px;align-items:center;
}
.pill:hover{
  box-shadow:0 0 0 1px rgba(var(--glow),.45),0 0 34px rgba(var(--glow),.40);
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.12));
}

.brain{position:absolute;inset:0;overflow:hidden;touch-action:none}
.brain__edges{position:absolute;inset:0;width:100%;height:100%}
.brain__edges line{stroke:rgb(var(--glow));stroke-width:1;opacity:.28;transition:opacity .25s,stroke-width .25s}
.brain__edges line.is-hot{
  opacity:.9;stroke-width:1.5;
  stroke-dasharray:7 9;stroke-linecap:round;
  animation:flow .5s linear infinite;
}
.brain__edges line.is-hot.is-hub{animation-duration:.2s}   /* dal centro ai servizi: 2,5x più veloce */
@keyframes flow{to{stroke-dashoffset:-16}}

/* card dei servizi: nessun bordo, alone azzurro */
.node{
  position:absolute;left:0;top:0;
  display:flex;flex-direction:column;gap:6px;
  padding:18px 22px 20px;
  width:230px;
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.05));
  color:var(--ink);
  border:0;border-radius:var(--card-radius);
  text-align:left;user-select:none;-webkit-user-select:none;touch-action:none;
  box-shadow:0 0 0 1px rgba(var(--glow),.10),
             0 0 22px rgba(var(--glow),.16),
             0 14px 34px -22px rgba(20,30,60,.30);
  transition:box-shadow .3s,background .3s;
  will-change:transform;
  cursor:grab;
}
.node.is-hot{
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.09));
  box-shadow:0 0 0 1px rgba(var(--glow),.18),
             0 0 34px rgba(var(--glow),.30),
             0 18px 40px -22px rgba(20,30,60,.35);
  z-index:4;
}
.node.is-drag{
  cursor:grabbing;z-index:5;
  box-shadow:0 0 0 1px rgba(var(--glow),.28),
             0 0 52px rgba(var(--glow),.42),
             0 26px 50px -24px rgba(20,30,60,.40);
}
.node__num{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:10.5px;font-weight:500;letter-spacing:.18em;color:rgb(45,80,135)}
.node__title{font-family:Fraunces,Georgia,serif;font-weight:900;font-variation-settings:"SOFT" 100,"WONK" 1;font-size:22px;line-height:1.05;letter-spacing:-.01em}
.node__sub{font-size:12.5px;line-height:1.35;opacity:.7}

/* hub centrale: nero con alone; al passaggio bianco con scritta luminosa */
.node--hub{
  width:auto;padding:22px 30px;
  background:var(--ink);color:#fff;border:0;
  border-radius:999px;
  font-family:Fraunces,Georgia,serif;font-weight:900;font-variation-settings:"SOFT" 100,"WONK" 1;
  font-size:30px;letter-spacing:-.02em;
  box-shadow:0 0 0 1px rgba(var(--glow),.35),
             0 0 40px rgba(var(--glow),.35),
             0 18px 44px -24px rgba(20,30,60,.5);
  transition:box-shadow .6s,background .6s,color .6s,text-shadow .6s;
}
.node--hub.is-hot{
  background:#fff;
  color:rgb(28,88,205);
  text-shadow:0 0 18px rgba(var(--glow),.55),
              0 0 40px rgba(var(--glow),.45),
              0 2px 3px rgba(20,30,60,.28);
  box-shadow:0 0 0 1px rgba(var(--glow),.5),
             0 0 60px rgba(var(--glow),.5),
             0 18px 44px -24px rgba(20,30,60,.5);
}
.home__hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  margin:0;font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:14px;letter-spacing:.2em;text-transform:uppercase;font-weight:500;
  color:rgb(28,88,205);opacity:1;
  pointer-events:none;white-space:nowrap;
}
@media (max-width:720px){ .home__hint{font-size:11px;letter-spacing:.16em} }
@media (max-width:720px){
  .node{width:150px;padding:12px 14px 14px}
  .node__title{font-size:15px}
  .node__sub{display:none}
  .node--hub{width:auto;white-space:nowrap;font-size:22px;padding:16px 22px}
  .logo{font-size:22px}
}

/* ===================== ZOOMER ===================== */
.zoomer{
  position:fixed;left:0;top:0;width:100px;height:100px;
  transform-origin:0 0;
  background:var(--white);border:0;
  border-radius:var(--card-radius);
  box-shadow:0 0 0 1px rgba(var(--glow),.18),0 0 34px rgba(var(--glow),.30);
  z-index:40;opacity:0;pointer-events:none;
  transition:transform .85s var(--ease),background .85s var(--ease),border-radius .85s var(--ease),box-shadow .85s var(--ease),opacity .35s;
}
.zoomer.is-on{opacity:1}
.zoomer.is-full{background:var(--ink);border-radius:0;box-shadow:none}
/* dal nodo nero alla pagina bianca (Chi siamo) */
.zoomer.zoomer--invert{background:var(--ink);border-radius:999px}
.zoomer.zoomer--invert.is-full{background:#fff;border-radius:0}
/* dalla card bianca alla pagina lavanda (Branding) */
.zoomer.zoomer--lavender.is-full{background:#f4f3fb}

/* ===================== SERVIZIO ===================== */
.service{
  position:fixed;inset:0;z-index:50;
  background:var(--ink);color:#fff;
  overflow-y:auto;overflow-x:hidden;
  opacity:0;pointer-events:none;
  transition:opacity .5s;
}
.service.is-open{opacity:1;pointer-events:auto}
.service__back{
  position:fixed;top:22px;left:clamp(18px,3vw,40px);z-index:2;
  font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  border-radius:999px;padding:10px 18px;
  display:flex;gap:8px;align-items:center;
  background:rgba(255,255,255,.04);color:#fff;
  box-shadow:0 0 0 1px rgba(var(--glow),.45),0 0 22px rgba(var(--glow),.28);
  transition:background .3s,box-shadow .3s,color .3s;
}
.service__back:hover{background:rgba(var(--glow),.16);box-shadow:0 0 0 1px rgba(var(--glow),.7),0 0 40px rgba(var(--glow),.45)}
.service__inner{
  width:min(1100px,92vw);margin:0 auto;
  padding:120px 0 100px;
}
.service__title{
  font-size:clamp(56px,10vw,150px);line-height:.9;letter-spacing:-.04em;
  margin:0 0 .3em;
  text-shadow:0 0 60px rgba(var(--glow),.28);
}
.service__lead{font-size:clamp(18px,2vw,26px);line-height:1.4;max-width:760px;margin:0 0 70px;opacity:.9}
.service__h2{
  font-size:clamp(30px,4vw,54px);letter-spacing:-.02em;line-height:1;margin:0 0 28px;
}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-bottom:80px}
.tile{
  border-radius:22px;padding:22px;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(var(--glow),.07));
  box-shadow:0 0 0 1px rgba(var(--glow),.22),0 0 22px rgba(var(--glow),.08);
  transition:box-shadow .3s,background .3s;
}
.tile:hover{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(var(--glow),.12));
  box-shadow:0 0 0 1px rgba(var(--glow),.5),0 0 34px rgba(var(--glow),.28);
}
.tile h3{margin:0 0 8px;font-size:18px;font-weight:600;letter-spacing:-.01em}
.tile p{margin:0;font-size:14px;line-height:1.5;opacity:.75}
.case{
  border-top:1px solid rgba(var(--glow),.35);padding:28px 0;
  display:grid;grid-template-columns:1.1fr 1.4fr 1.4fr;gap:26px;
}
.case:last-child{border-bottom:1px solid rgba(var(--glow),.35)}
.case__client{font-family:Fraunces,Georgia,serif;font-weight:900;font-variation-settings:"SOFT" 100,"WONK" 1;font-size:26px;line-height:1.05;letter-spacing:-.01em}
.case__sector{display:block;font-family:"IBM Plex Mono",ui-monospace,monospace;font-weight:500;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:rgb(var(--glow));opacity:.9;margin-top:8px}
.case h4{margin:0 0 6px;font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:rgb(var(--glow));opacity:.9;font-weight:500}
.case p{margin:0;font-size:15px;line-height:1.5}
.case--2{grid-template-columns:1.1fr 2.8fr}
.cta{
  margin-top:90px;padding:48px;border-radius:32px;
  background:#fff;color:var(--ink);
  box-shadow:0 0 0 1px rgba(var(--glow),.25),0 0 60px rgba(var(--glow),.30);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta__t{font-size:clamp(28px,4vw,48px);letter-spacing:-.02em;line-height:1;margin:0}
.cta a{
  font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  background:var(--ink);color:#fff;border-radius:999px;padding:16px 26px;
  box-shadow:0 0 0 1px rgba(var(--glow),.35),0 0 24px rgba(var(--glow),.30);
  transition:box-shadow .3s;
}
.cta a:hover{box-shadow:0 0 0 1px rgba(var(--glow),.6),0 0 44px rgba(var(--glow),.5)}

/* ----- variante chiara (Chi siamo) ----- */
.service--light{background:#fff;color:var(--ink)}
.service--light .service__back{background:linear-gradient(180deg,#fff,rgba(var(--glow),.06));color:var(--ink);box-shadow:0 0 0 1px rgba(var(--glow),.22),0 0 18px rgba(var(--glow),.18)}
.service--light .service__back:hover{background:linear-gradient(180deg,#fff,rgba(var(--glow),.12));box-shadow:0 0 0 1px rgba(var(--glow),.45),0 0 34px rgba(var(--glow),.40)}
.service--light .service__title{text-shadow:0 0 60px rgba(var(--glow),.25)}
.service--light .tile{
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.05));
  box-shadow:0 0 0 1px rgba(var(--glow),.10),0 0 22px rgba(var(--glow),.16),0 14px 34px -22px rgba(20,30,60,.30);
}
.service--light .tile:hover{
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.09));
  box-shadow:0 0 0 1px rgba(var(--glow),.18),0 0 34px rgba(var(--glow),.30),0 18px 40px -22px rgba(20,30,60,.35);
}
.service--light .case{border-color:rgba(var(--glow),.3)}
.service--light .case__sector,.service--light .case h4{color:rgb(45,80,135)}

/* ----- variante lavanda (Branding): mood "out of mind" ----- */
.service--lavender{
  --glow:150,138,240;                /* gli accenti azzurri diventano lavanda */
  --lav:#c9c0ff;--lav-deep:#8f7de6;--lav-light:#efeaff;
  background:#f4f3fb;color:#0d0c12;
}
.service--lavender .service__inner{padding-top:100px}

/* titolo singolo in nero, con le forme 3D che ci galleggiano sopra */
.lav-hero{position:relative;margin:0 0 30px;padding:20px 0 30px;user-select:none}
.lav-hero__title{
  font-size:clamp(72px,14vw,210px);line-height:.85;letter-spacing:-.05em;
  color:#0d0c12;margin:0;position:relative;z-index:1;
}
.lav-hero__side{
  position:absolute;top:50%;z-index:1;
  font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.3em;text-transform:uppercase;font-weight:500;
  color:#0d0c12;white-space:nowrap;
}
.lav-hero__side--l{left:-8px;transform:translate(-100%,-50%) rotate(-90deg)}
.lav-hero__side--r{right:-8px;transform:translate(100%,-50%) rotate(90deg)}

/* titoli di sezione in 3D lucido, sempre in Fraunces */
.service--lavender .service__h2{
  color:var(--lav);
  background:linear-gradient(180deg,#f3efff 0%,#d3caff 38%,#b3a4f5 70%,#8f7de6 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:
    drop-shadow(0 1px 0 #a597ee)
    drop-shadow(0 2px 0 #9788e8)
    drop-shadow(0 3px 0 #8878dd)
    drop-shadow(0 14px 16px rgba(70,55,160,.35));
  text-shadow:none;
  padding-bottom:6px;
}
.service--lavender .service__lead{opacity:1;color:#1a1826}
.service--lavender .service__back{background:linear-gradient(180deg,#fff,rgba(var(--glow),.08));color:#0d0c12;box-shadow:0 0 0 1px rgba(var(--glow),.3),0 0 18px rgba(var(--glow),.25)}
.service--lavender .service__back:hover{background:linear-gradient(180deg,#fff,rgba(var(--glow),.16));box-shadow:0 0 0 1px rgba(var(--glow),.55),0 0 34px rgba(var(--glow),.45)}
.service--lavender .tile{
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.07));
  box-shadow:0 0 0 1px rgba(var(--glow),.16),0 0 22px rgba(var(--glow),.16),0 14px 34px -22px rgba(60,45,140,.30);
}
.service--lavender .tile:hover{
  background:linear-gradient(180deg,#fff,rgba(var(--glow),.13));
  box-shadow:0 0 0 1px rgba(var(--glow),.3),0 0 34px rgba(var(--glow),.32),0 18px 40px -22px rgba(60,45,140,.35);
}
.service--lavender .case{border-color:rgba(var(--glow),.4)}
.service--lavender .case__sector,.service--lavender .case h4{color:#6b5bd0}

@media (max-width:720px){
  .case,.case--2{grid-template-columns:1fr;gap:14px}
  .cta{padding:28px}
  .lav-hero__side{display:none}
  .lav-hero{padding:20px 0 30px}
}
@media (prefers-reduced-motion:reduce){
  .zoomer,.service{transition:none}
}