@font-face{font-family:Satoshi;src:url("assets/fonts/Satoshi-Variable.woff2") format("woff2");font-weight:300 900;font-style:normal;font-display:swap}
@property --glow-angle{syntax:"<angle>";inherits:false;initial-value:0deg}

/* Design system "AI technology premium": blu notte, luce controllata, solo Satoshi. Condiviso da tutte le pagine. */
:root{
  --bg:#0A1226;--surface:#101C38;--surface-2:#142447;--line:#223459;--line-soft:rgba(159,178,208,.16);
  --text:#E8F0FB;--muted:#9FB2D0;--accent:#269AE2;--bright:#6CCBFF;--on-accent:#04101F;
  --glow:0 0 28px rgba(38,154,226,.32);
  --ease-out:cubic-bezier(.23,1,.32,1);
  --wrap:min(1240px,100% - 3rem);
  --gutter:max(1.5rem,calc((100% - 1240px)/2));
  --r:10px;--r-lg:18px;
  --font:Satoshi,"Trebuchet MS",sans-serif;
}

/* Base */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5.75rem;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:1.0625rem;line-height:1.6;font-weight:400;letter-spacing:0}
h1,h2,h3,p,ol,ul,figure,dl,dd{margin:0}
ol,ul{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit}
button,a,summary{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--bright);outline-offset:4px;border-radius:4px}
[hidden]{display:none!important}
.wrap{width:var(--wrap);margin-inline:auto}

/* Tipografia: l'evidenza dei titoli viene da scala e contrasto di peso */
h1,h2,h3{font-weight:800;line-height:1.02;letter-spacing:-.03em}
h2{font-size:clamp(2.25rem,5vw,4.25rem)}
h3{font-size:1.5rem;font-weight:700;line-height:1.15;letter-spacing:-.01em}
em{font-style:normal;color:var(--bright)}
h1 em,h2 em{font-weight:300;color:inherit}
.light{display:block;font-weight:300}
.eyebrow{font-size:.875rem;font-weight:600;line-height:1.5;color:var(--muted)}
.text-link{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px}
@media(hover:hover) and (pointer:fine){.text-link:hover{color:var(--bright)}}

/* Hero delle pagine di approfondimento (Processo, Sperimentazione, Casi): stesso sfondo a griglia sfumata, nessuna foto */
.hero-page{position:relative;isolation:isolate;padding:clamp(3.5rem,8vw,6.5rem) var(--gutter) clamp(2.5rem,5vw,4rem)}
.hero-page::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/64px 64px,linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/64px 64px;-webkit-mask-image:radial-gradient(70% 90% at 30% 40%,#000,transparent 78%);mask-image:radial-gradient(70% 90% at 30% 40%,#000,transparent 78%);opacity:.55}
.hero-page h1{max-width:16ch;margin:1rem 0 1.5rem;font-size:clamp(2.25rem,8vw,7rem);line-height:.95;letter-spacing:-.04em}
.hero-page .hero-intro{max-width:46rem;font-size:clamp(1.125rem,1.8vw,1.5rem);line-height:1.35}
.hero-page .hero-detail{max-width:46rem;margin-top:1rem;color:var(--muted)}
.hero-page .text-link{margin-top:1.75rem}
.hero-page .hero-index{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.25rem 1.25rem;margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid var(--line-soft);font-size:.875rem;color:var(--muted)}
/* Struttura comune delle sezioni */
.section{padding:clamp(3.5rem,8vw,7rem) var(--gutter);border-top:1px solid var(--line-soft)}
.section-label{display:flex;justify-content:space-between;gap:1.25rem;margin-bottom:clamp(2rem,4vw,3rem);padding-bottom:.9rem;border-bottom:1px solid var(--line-soft);font-size:.875rem;color:var(--muted)}
.section-label span:last-child{text-align:right}
.section-heading{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,6vw,5rem);align-items:end;margin-bottom:clamp(2rem,4vw,3.5rem)}
.section-heading>p{max-width:52ch;color:var(--muted)}
@media(max-width:900px){.section-heading{grid-template-columns:1fr;align-items:start}}

/* Header, menu e footer condivisi: stesso markup in tutte le pagine (aggiornare sempre insieme le quattro pagine) */
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:100;padding:.75rem 1rem;border-radius:var(--r);background:var(--text);color:var(--bg)}
.skip-link:focus{top:1rem}
.header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;height:92px;padding:0 var(--gutter);background:rgba(10,18,38,.84);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.brand{display:flex;align-items:center;gap:22px;font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1}
.brand>span{border-left:1px solid var(--line);padding-left:22px;font-size:.875rem;font-weight:400;letter-spacing:0;color:var(--muted)}
.brand strong{font-size:24px;letter-spacing:0;color:var(--text)}
.header nav{display:flex;align-items:center;gap:34px;font-size:.875rem;font-weight:500}
.header nav a:hover{color:var(--bright)}
.menu-toggle{display:none;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.06);color:var(--text);padding:8px 16px;cursor:pointer}
.nav-dropdown{position:relative}
.nav-dropdown summary{cursor:pointer;list-style:none}
.nav-dropdown summary::-webkit-details-marker{display:none}
.nav-dropdown summary::after{content:" +";color:var(--bright)}
.nav-dropdown[open] summary::after{content:" -"}
.nav-dropdown summary:hover{color:var(--bright)}
.nav-submenu{position:absolute;top:calc(100% + 14px);left:-18px;z-index:30;display:flex;flex-direction:column;min-width:240px;padding:8px 0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:0 18px 40px rgba(0,0,0,.5)}
.nav-submenu a{padding:12px 18px}
.nav-submenu a:hover,.nav-submenu a:focus-visible{background:rgba(255,255,255,.06);color:var(--text)}
.nav-submenu a[aria-current=page],.nav-dropdown:has([aria-current=page]) summary{color:var(--bright)}
@media(min-width:701px){.nav-links{display:flex;align-items:center;gap:34px}}
@media(max-width:1050px){.header nav{gap:20px}}
@media(min-width:701px) and (max-width:1050px){.nav-links{gap:20px}}
@media(min-width:901px){.header{display:grid;grid-template-columns:1fr auto 1fr;gap:24px}.header nav{grid-column:2/4;display:grid;grid-template-columns:subgrid}.nav-contact{justify-self:end}}
@media(max-width:700px){html{scroll-padding-top:76px}.header{height:76px;padding:0 6%}.brand{font-size:28px;gap:14px}.brand>span{padding-left:14px}.brand strong{font-size:20px}.menu-toggle{display:block}.header nav{position:absolute;top:75px;left:0;right:0;flex-direction:column;align-items:stretch;gap:18px;padding:24px 6%;background:var(--surface);border-bottom:1px solid var(--line)}.header nav[data-collapsed=true]{display:none}.header nav .nav-contact{align-self:start}.nav-links{display:contents}.nav-dropdown summary{padding:8px 0}.nav-submenu{position:static;min-width:0;margin-top:8px;padding:4px 0;background:transparent;border:0;border-left:2px solid var(--line);border-radius:0;box-shadow:none}.nav-submenu a{padding:10px 14px}}

.footer{padding:2.5rem var(--gutter) 2rem;display:grid;grid-template-columns:1fr 1fr;gap:1.5rem 2rem;border-top:1px solid var(--line-soft);font-size:.9375rem}
.footer-brand{font-size:1.75rem;font-weight:800;letter-spacing:-.02em}
.footer-brand span{margin-left:.5rem;font-size:1.25rem;color:var(--bright)}
.footer p{margin-top:.5rem;font-size:.875rem;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:start;gap:.75rem 1.5rem;padding-top:.5rem}
.footer a:hover{text-decoration:underline;text-underline-offset:3px}
.legal{grid-column:1/-1;border-top:1px solid var(--line-soft);padding-top:1.25rem}
@media(max-width:700px){.footer{padding:2rem 6% 1.5rem;grid-template-columns:1fr}.footer-links{justify-content:flex-start;padding-top:0}.legal{grid-column:1}}

/* Pulsanti: pillola scura o luminosa con anello rotante #269AE2 (anello e alone solo dove serve) */
.button,.nav-contact{--ring-base:transparent;position:relative;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;gap:.6rem;min-height:3rem;padding:.75rem 1.5rem;border:0;border-radius:999px;background:transparent;color:var(--on-accent);font-family:inherit;font-size:1rem;font-weight:700;line-height:1;white-space:nowrap;cursor:pointer;animation:glow-rotate 4s linear infinite;transition:transform 160ms var(--ease-out)}
.nav-contact{min-height:2.5rem;padding:.5rem 1.15rem;font-size:.9375rem}
.button span{font-size:1.25rem;line-height:1}
.button::before,.nav-contact::before{content:"";position:absolute;inset:0;z-index:-1;padding:1px;border-radius:inherit;background:conic-gradient(from var(--glow-angle),var(--ring-base) 0 50%,var(--bright) 92%,var(--ring-base) 100%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0);mask-composite:exclude;transition:padding .2s}
.button::after,.nav-contact::after{content:"";position:absolute;inset:0;z-index:-2;border-radius:inherit;background:var(--accent);box-shadow:var(--glow);transition:background .2s}
.button-secondary{--ring-base:rgba(159,178,208,.3);color:var(--text);font-weight:600}
.button-secondary::after{background:linear-gradient(180deg,var(--surface-2),var(--bg));box-shadow:none}
.header nav a.nav-contact,.header nav a.nav-contact:hover{color:var(--on-accent)}
@media(hover:hover) and (pointer:fine){
  .button:hover::before,.header nav a.nav-contact:hover::before{padding:2px}
  .button:hover::after,.header nav a.nav-contact:hover::after{background:var(--bright)}
  .button-secondary:hover::after{background:linear-gradient(180deg,#1b3160,var(--surface))}
}
.button:active,.nav-contact:active{transform:scale(.97)}
@keyframes glow-rotate{to{--glow-angle:360deg}}

/* Ciclo HAIT: unica sequenza vera, quindi unica con i numeri (landing e pagina Processo) */
.hait-cycle{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1.5rem;margin:clamp(2.5rem,5vw,4rem) 0 0}
.hait-cycle::before{content:"";position:absolute;left:0;right:0;top:1.125rem;height:1px;background:linear-gradient(90deg,var(--accent),var(--line) 60%,var(--line))}
.hait-cycle li{position:relative;padding-top:3.25rem}
.hait-cycle-number{position:absolute;left:0;top:0;display:grid;place-items:center;width:2.25rem;height:2.25rem;border:1px solid var(--accent);border-radius:50%;background:var(--bg);font-size:.9375rem;font-weight:700;color:var(--bright)}
.hait-cycle strong{display:block;font-size:1.25rem;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.hait-cycle p{margin-top:.5rem;font-size:.9688rem;color:var(--muted)}
.hait-cycle-arrow{display:none}
.hait-cycle-note{margin-top:1.75rem;color:var(--muted)}
.hait-cycle-note span{margin-right:.6rem;color:var(--bright);font-size:1.25rem}
@media(max-width:1000px){.hait-cycle{grid-template-columns:repeat(2,minmax(0,1fr))}.hait-cycle::before{display:none}}
@media(max-width:700px){.hait-cycle{grid-template-columns:1fr}}

/* Pannello finale: unico elemento con alone luminoso (landing .panel, sottopagine .closing) */
.panel,.closing{position:relative;isolation:isolate;overflow:hidden;overflow:clip;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);padding:clamp(2rem,6vw,5rem)}
.panel::before,.closing::before{content:"";position:absolute;right:-12%;top:-40%;z-index:-1;width:60%;aspect-ratio:1;border-radius:50%;background:radial-gradient(closest-side,rgba(38,154,226,.2),transparent 70%)}
.closing{margin:0 var(--gutter) clamp(3rem,6vw,5rem);text-align:center}
.closing h2{margin:1rem auto 1.75rem;max-width:20ch}
.closing>p:not(.eyebrow){max-width:56ch;margin:0 auto 1.75rem;color:var(--muted)}
.closing-links{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:1.5rem 2rem;margin-top:1.75rem}
@media(max-width:800px){.closing-links{flex-direction:column}}

/* Card: stessa superficie a gradiente per slide, passi, casi e schede delle pagine di approfondimento */
.slide-card,.step,.case-grid .case,.case-list .case{background:radial-gradient(ellipse at 30% 0%,rgba(38,154,226,.2),transparent 68%),linear-gradient(180deg,var(--surface-2),var(--surface));border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:0 24px 48px -24px rgba(0,0,0,.6)}

/* Badge con icona SVG proprietaria (pagine di approfondimento): stesso tratto delle icone della landing */
.icon{display:grid;flex:none;place-items:center;width:3.5rem;height:3.5rem;background:var(--bg);border:1px solid var(--line);border-radius:50%}
.icon svg{width:1.75rem;height:1.75rem;fill:none;stroke:var(--bright);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.icon .fill{fill:var(--bright);stroke:none}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:1rem}

/* Slider di card con scheda attiva in evidenza e schede laterali attenuate (app.js, landing e Processo) */
.benefit-slider{--slide-gap:clamp(1rem,2vw,1.5rem);--slide-w:calc((100% - var(--slide-gap))/2);position:relative;margin-top:clamp(2rem,4vw,3rem)}
.slides{display:flex;gap:var(--slide-gap);overflow-x:auto;padding:1.5rem 0 2rem;list-style:none;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain}
.slides::-webkit-scrollbar{display:none}
.slides:focus-visible{outline-offset:-3px;border-radius:var(--r-lg)}
.slide{flex:0 0 var(--slide-w);display:flex;scroll-snap-align:start;transition:opacity .35s var(--ease-out)}
.js-slider .slide:not(.is-active){opacity:.8;cursor:pointer}
.js-slider.is-end .slide:not(.is-active){cursor:default}
.slide-card{display:flex;flex-direction:column;width:100%;padding:clamp(1.75rem,3vw,2.5rem)}
.slide-icon{display:grid;place-items:center;width:3.5rem;height:3.5rem;margin-bottom:1.5rem;background:var(--bg);border:1px solid var(--line);border-radius:50%}
.slide-icon .glyph{width:1.75rem;height:1.75rem;margin:0}
.slide h3{font-size:clamp(1.75rem,2.6vw,2.25rem);font-weight:800;line-height:1.05;letter-spacing:-.025em}
.slide-lead{margin-top:.75rem;font-size:1.25rem;font-weight:600;line-height:1.3}
.slide-text{max-width:46ch;margin-top:.5rem;font-size:1.0625rem;color:var(--muted)}
.slide-uses{margin-top:auto;padding:1rem 1.125rem;border:1px solid var(--line);border-radius:var(--r);background:rgba(10,18,38,.55)}
.slide-text+.slide-uses{margin-top:1.5rem}
.slide-uses .tag{margin-bottom:.25rem;font-size:.875rem;font-weight:600;color:var(--muted)}
.slide-uses li{position:relative;padding:.35rem 0 .35rem 1.125rem;font-size:.9375rem;line-height:1.4}
.slide-uses li::before{content:"";position:absolute;left:0;top:.8rem;width:6px;height:6px;border-radius:50%;background:var(--bright)}
.slider-controls{display:flex;align-items:center;justify-content:center;gap:1.25rem}
.slider-controls[hidden]{display:none}
.slider-dots{display:flex;gap:.25rem}
.slider-arrow{display:grid;place-items:center;width:2.75rem;height:2.75rem;padding:0;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:50%;cursor:pointer;transition:border-color .2s,background-color .2s,opacity .2s,scale .16s var(--ease-out)}
.slider-arrow svg{width:1.25rem;height:1.25rem;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.slider-arrow:active{scale:.94}
.slider-arrow:focus-visible{border-radius:50%}
.slider-arrow[aria-disabled=true]{opacity:.35;cursor:default;scale:1}
@media(hover:hover){.slider-arrow:not([aria-disabled=true]):hover{border-color:var(--accent);background:var(--surface-2)}}
.slider-dots button{position:relative;width:1.5rem;height:2.75rem;padding:0;background:none;border:0;cursor:pointer}
.slider-dots button::before{content:"";position:absolute;left:50%;top:50%;width:.5rem;height:.5rem;translate:-50% -50%;border-radius:999px;background:var(--line);transition:width .3s var(--ease-out),background-color .2s}
.slider-dots button[aria-current=true]::before{width:1.25rem;background:var(--bright)}
@media(max-width:760px){.benefit-slider{--slide-w:86%}}
@media(prefers-reduced-motion:reduce){.slide,.slider-dots button::before{transition:none}}

/* Movimento: scroll reveal (reveal.js aggiunge le classi: senza JavaScript il contenuto resta visibile) */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.2,1) var(--reveal-delay,0s),transform .7s cubic-bezier(.2,.7,.2,1) var(--reveal-delay,0s)}
.reveal.is-visible{opacity:1;transform:none}
.word{display:inline-block;white-space:nowrap}
.has-chars .ch{display:inline-block;opacity:0;transform:translateY(.5em);transition:opacity .5s ease var(--d,0s),transform .6s cubic-bezier(.2,.7,.2,1) var(--d,0s)}
.has-chars.is-chars-visible .ch{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .button,.nav-contact{animation:none}
}
@media print{.reveal,.has-chars .ch{opacity:1;transform:none}.skip-link{display:none}}

/* Movimento: ingresso a scaglioni della hero delle pagine di approfondimento (come la hero della landing) */
@media(prefers-reduced-motion:no-preference){
@keyframes page-arrival{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:none}}
.hero-page>*{animation:page-arrival .8s cubic-bezier(.2,.7,.2,1) var(--hd,0s) backwards}
.hero-page>:nth-child(1){--hd:.1s}
.hero-page>:nth-child(2){--hd:.2s}
.hero-page>:nth-child(3){--hd:.4s}
.hero-page>:nth-child(4){--hd:.55s}
.hero-page>:nth-child(5){--hd:.7s}
.hero-page>:nth-child(n+6){--hd:.85s}
}
@media print{.hero-page>*{animation:none}}

/* Movimento: barra di avanzamento collegata allo scroll (miglioramento progressivo) */
@supports (animation-timeline:scroll()){
@media(prefers-reduced-motion:no-preference){
@keyframes scroll-progress{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);transform-origin:0 50%;transform:scaleX(0);animation:scroll-progress linear both;animation-timeline:scroll(root)}
}
}

/* Movimento: parallasse e animazioni legate allo scroll delle pagine di approfondimento (solo CSS, miglioramento progressivo).
   Si usano translate/rotate/scale, non transform, per non interferire con il reveal. */
@supports (animation-timeline:scroll()){
@media(prefers-reduced-motion:no-preference){
@keyframes page-hero-out{to{translate:0 var(--py,-36px);opacity:var(--po,.15)}}
@keyframes page-grid-drift{to{translate:0 110px}}
@keyframes drift{from{translate:0 var(--drift,28px)}to{translate:0 calc(var(--drift,28px)*-1)}}
@keyframes icon-in{from{scale:.7;opacity:.25}to{scale:1;opacity:1}}
@keyframes visual-turn{from{rotate:-40deg;translate:0 36px}to{rotate:150deg;translate:0 -36px}}
/* Hero: ingresso a tempo e, durante lo scroll, uscita a livelli (ogni elemento sale a velocita' diversa) */
.hero-page{overflow:clip}
.hero-page>*{animation-name:page-arrival,page-hero-out;animation-duration:.8s,auto;animation-timing-function:cubic-bezier(.2,.7,.2,1),linear;animation-fill-mode:backwards,both;animation-delay:var(--hd,0s),0s;animation-timeline:auto,scroll(root);animation-range:normal,0px 560px}
.hero-page>:nth-child(1){--py:-10px}
.hero-page>:nth-child(2){--py:-30px}
.hero-page>:nth-child(3){--py:-48px}
.hero-page>:nth-child(4){--py:-62px}
.hero-page>:nth-child(5){--py:-74px}
.hero-page>:nth-child(n+6){--py:-86px;--po:.05}
/* La griglia di sfondo scorre piu' lentamente del testo */
.hero-page::before{inset:-110px 0 0;animation:page-grid-drift linear both;animation-timeline:scroll(root);animation-range:0px 760px}
/* Icone: compaiono ingrandendosi mentre la card entra nella vista (non nello slider, che scorre in orizzontale) */
.icon{animation:icon-in linear both;animation-timeline:view();animation-range:entry 0% entry 85%}
.slides .icon{animation:none}
/* Elemento a cerchi: ruota e scorre in verticale con la sezione */
.principle-visual{animation:visual-turn linear both;animation-timeline:view();animation-range:cover}
/* Casi: numero e icona scorrono piu' lentamente della card che li contiene */
@media(min-width:801px){.case-aside{--drift:42px;animation:drift linear both;animation-timeline:view();animation-range:cover}}
/* Alone del pannello finale */
.closing::before{animation:drift linear both;animation-timeline:view();animation-range:cover;--drift:48px}
}
}