/* =====================================================================
   THE INVISIBLE WORLDS — Landing page
   Stile editoriale/cinematografico: serif espressivo (Fraunces) per i
   titoli + Inter per il testo. Sezioni scure con foto a tutto schermo
   alternate a sezioni chiare "da rivista". Commenti in italiano.
   ===================================================================== */

:root{
  --ink:#14121a;
  --cream:#f6f2ea;         /* bianco caldo, non clinico */
  --cream-2:#efe9dd;
  --night:#0d0c12;         /* nero-notte delle sezioni scure */
  --night-2:#151320;
  --violet:#6c4fe0;
  --violet-lt:#9d86ff;
  --orange:#f0883e;
  --muted:#726c7e;
  --line:rgba(20,18,26,.10);
  --grad:linear-gradient(100deg,#8b5cf6 0%,#b25fbf 48%,#f0883e 100%);
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --maxw:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:clip}
body.lp{font-family:var(--sans);background:var(--cream);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.6}
.lp img{display:block;max-width:100%}
.lp a{color:inherit;text-decoration:none}
.lp button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--violet);color:#fff}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.serif{font-family:var(--serif)}

/* Etichette "da rivista": 01 — SEZIONE */
.kicker{display:inline-flex;align-items:center;gap:12px;font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase}
.kicker .num{font-family:var(--serif);font-style:italic;font-weight:500;letter-spacing:0;opacity:.6}
.kicker::before{content:"";width:30px;height:1px;background:currentColor;opacity:.5}

/* Bottoni */
.btn{display:inline-flex;align-items:center;gap:10px;border-radius:100px;padding:15px 28px;font-weight:600;font-size:15px;transition:transform .25s cubic-bezier(.2,.9,.3,1),box-shadow .25s,background .25s,color .25s;will-change:transform}
.btn:hover{transform:translateY(-2px)}
/* Tre sole varianti, senza sfumature:
   .btn-light   bianco pieno, testo nero  -> azione principale su foto o fondo colorato
   .btn-dark    nero pieno, testo bianco  -> azione principale su fondo chiaro
   .btn-outline solo contorno, testo bianco -> azione secondaria su foto o fondo colorato
   Il bordo trasparente sulle varianti piene tiene i bottoni della stessa
   altezza esatta quando stanno affiancati a uno .btn-outline. */
.btn-light{background:#fff;color:var(--ink);border:1.5px solid transparent;box-shadow:0 12px 34px -12px rgba(0,0,0,.5)}
.btn-light:hover{background:var(--cream)}
.btn-dark{background:var(--ink);color:#fff;border:1.5px solid transparent}
.btn-dark:hover{background:#26212f}
.btn-outline{border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn .arw{transition:transform .25s}
.btn:hover .arw{transform:translateX(4px)}

/* Rivelazione allo scroll.
   IMPORTANTE: di default il contenuto è VISIBILE. Lo stato "nascosto" si
   attiva solo se il JS aggiunge la classe .reveal-ready all'<html>: così,
   se il JS non parte, la pagina resta comunque leggibile (niente pagina bianca). */
[data-reveal]{transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
html.reveal-ready [data-reveal]{opacity:0;transform:translateY(34px)}
html.reveal-ready [data-reveal].is-in{opacity:1;transform:none}
[data-reveal].d1{transition-delay:.08s}[data-reveal].d2{transition-delay:.16s}[data-reveal].d3{transition-delay:.24s}[data-reveal].d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){html.reveal-ready [data-reveal]{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* =====================================================================
   HEADER
   ===================================================================== */
.lp-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s,box-shadow .4s,padding .4s;padding:22px 0}
.lp-header .wrap{display:flex;align-items:center;justify-content:space-between}
.lp-brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:16px;letter-spacing:-.01em;color:#fff;transition:color .4s}
/* Logo header: due immagini sovrapposte che si dissolvono l'una nell'altra.
   Bianco = header trasparente sopra l'hero scuro · Nero = header chiaro (.solid) */
.lp-brand .brand-logo{position:relative;display:block;width:58px;height:44px;flex:none}
.lp-brand .brand-logo img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:opacity .4s ease}
.lp-brand .lg-black{opacity:0}
.lp-nav{display:flex;align-items:center;gap:34px}
.lp-nav a{font-size:14.5px;font-weight:500;color:rgba(255,255,255,.82);transition:color .25s}
.lp-nav a:hover{color:#fff}
.lp-header .btn{padding:11px 22px;font-size:14px}
/* "Entra": bianco con testo nero sull'header trasparente, nero con testo
   bianco quando l'header diventa chiaro allo scroll (vedi .solid più sotto) */
.lp-header .btn-light{font-weight:700;box-shadow:0 8px 26px -12px rgba(0,0,0,.6)}
/* stato "scrollato": sfondo chiaro */
.lp-header.solid{background:rgba(246,242,234,.86);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line);padding:14px 0}
.lp-header.solid .lp-brand{color:var(--ink)}
.lp-header.solid .lp-brand .lg-white{opacity:0}
.lp-header.solid .lp-brand .lg-black{opacity:1}
.lp-header.solid .lp-nav a{color:var(--muted)}
.lp-header.solid .lp-nav a:hover{color:var(--ink)}
.lp-header.solid .btn-light{background:var(--ink);color:#fff;box-shadow:0 8px 24px -14px rgba(20,18,26,.75)}
.lp-header.solid .btn-light:hover{background:#26212f}
.nav-toggle{display:none}

/* =====================================================================
   HERO
   ===================================================================== */
.lp-hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.lp-hero .bg{position:absolute;inset:0;background:url('../assets/landing/hero-greenland.jpg') center/cover no-repeat;transform:scale(1.05);animation:heroZoom 18s ease-out forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.lp-hero .veil{position:absolute;inset:0;background:
  /* velo laterale: scurisce solo la metà sinistra, dove sta il testo,
     lasciando luminosa la parte destra della foto */
  linear-gradient(90deg,rgba(10,9,14,.5) 0%,rgba(10,9,14,.28) 40%,rgba(10,9,14,0) 68%),
  linear-gradient(180deg,rgba(10,9,14,.55) 0%,rgba(10,9,14,.15) 30%,rgba(10,9,14,.25) 60%,rgba(10,9,14,.92) 100%)}
.lp-hero .wrap{position:relative;z-index:2;padding-bottom:8vh;padding-top:16vh;width:100%}
.hero-kicker{color:#fff;opacity:.9;margin-bottom:26px}
.lp-hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(40px,7.4vw,104px);line-height:.98;letter-spacing:-.02em;max-width:15ch;text-wrap:balance;text-shadow:0 2px 40px rgba(0,0,0,.35)}
/* =====================================================================
   PAROLE EVIDENZIATE — fascia piena, stile evidenziatore.
   Il colore del testo segue il colore della fascia: nero sulle fasce
   chiare (arancio, contrasto 7,3), bianco su quelle scure (viola, 5,5).
   box-decoration-break:clone -> se la frase va a capo, ogni riga riceve
   la sua fascia con gli angoli arrotondati invece di un unico blocco.
   ===================================================================== */
.lp-hero h1 em,
.split-copy h2 em,
.lp-cta h2 em{
  font-style:italic;
  color:var(--ink);
  /* La fascia è disegnata come IMMAGINE di sfondo, non come sfondo pieno:
     lo sfondo di un testo inline copre tutta la scatola del font (1,69em),
     molto più alta delle lettere (1,09em) — da lì il blocco enorme.
     Con misura e posizione espresse in "em" la fascia resta incollata alle
     lettere e si adatta da sola a ogni dimensione del titolo. */
  background-image:linear-gradient(var(--orange),var(--orange));
  background-repeat:no-repeat;
  background-size:100% 1.2em;
  background-position:0 .32em;
  padding:0 .14em;
  text-shadow:none;
  -webkit-box-decoration-break:clone;
  box-decoration-break:clone;
}
/* Sezione scura "I mondi invisibili": fascia viola, quindi testo bianco */
.split-copy h2 em{background-image:linear-gradient(var(--violet),var(--violet));color:#fff}

/* La fascia si "pennella" da sinistra a destra quando il titolo entra in vista,
   come un evidenziatore passato sopra le parole. Se il JS non parte, la classe
   .reveal-ready non c'è e la fascia resta semplicemente già disegnata. */
html.reveal-ready .lp-hero h1 em,
html.reveal-ready .split-copy h2 em,
html.reveal-ready .lp-cta h2 em{
  background-size:0 1.2em;
  transition:background-size .55s cubic-bezier(.2,.7,.2,1) .1s;
}
html.reveal-ready .lp-hero h1.is-in em,
html.reveal-ready .split-copy h2.is-in em,
html.reveal-ready .lp-cta h2.is-in em{background-size:100% 1.2em}
@media (prefers-reduced-motion:reduce){
  html.reveal-ready .lp-hero h1 em,
  html.reveal-ready .split-copy h2 em,
  html.reveal-ready .lp-cta h2 em{background-size:100% 1.2em;transition:none}
}
.lp-hero .lead{margin-top:26px;max-width:46ch;font-size:clamp(16px,1.7vw,20px);color:rgba(255,255,255,.88);font-weight:400}
.hero-actions{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-scroll{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:2;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.7)}
.hero-scroll .mouse{width:22px;height:36px;border:1.5px solid rgba(255,255,255,.6);border-radius:12px;position:relative}
.hero-scroll .mouse::after{content:"";position:absolute;top:6px;left:50%;transform:translateX(-50%);width:3px;height:7px;border-radius:2px;background:#fff;animation:scrolldot 1.6s infinite}
@keyframes scrolldot{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}100%{opacity:0;transform:translate(-50%,10px)}}

/* strip di credito foto, dettaglio che "umanizza" */
.photo-credit{position:absolute;right:16px;bottom:16px;z-index:2;font-size:10.5px;letter-spacing:.04em;color:rgba(255,255,255,.55);writing-mode:vertical-rl;transform:rotate(180deg)}

/* =====================================================================
   MANIFESTO (sezione chiara)
   ===================================================================== */
.lp-section{padding:clamp(80px,12vh,150px) 0}
.lp-manifesto{background:var(--cream)}
.manifesto-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:60px;align-items:end}
.manifesto-grid .kicker{color:var(--violet);margin-bottom:26px}
.manifesto-lead{font-family:var(--serif);font-weight:400;font-size:clamp(26px,3.6vw,46px);line-height:1.18;letter-spacing:-.015em;text-wrap:balance}
.manifesto-lead b{font-weight:600;color:var(--violet)}
.manifesto-side p{color:var(--muted);font-size:16.5px}
.manifesto-side p + p{margin-top:16px}

/* Striscia di tre foto verticali, sfalsate come in un impaginato da rivista.
   L'aspect-ratio fisso evita che la pagina "salti" mentre le foto caricano. */
.manifesto-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(10px,1.8vw,24px);margin-top:clamp(44px,6vw,78px)}
.ms-item{position:relative;overflow:hidden;border-radius:14px;aspect-ratio:3/4;background:var(--cream-2)}
.ms-item:nth-child(2){margin-top:clamp(18px,4vw,52px)}
.ms-item:nth-child(3){margin-top:clamp(36px,8vw,104px)}
.ms-item img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s cubic-bezier(.2,.7,.2,1)}
.ms-item:hover img{transform:scale(1.05)}
.ms-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 15px;
  font-size:12px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:#fff;
  background:linear-gradient(transparent,rgba(10,9,14,.8))}
.rule{height:1px;background:var(--line);margin:0}

/* =====================================================================
   SPLIT scuro con foto (il problema)
   ===================================================================== */
.lp-split{position:relative;background:var(--night);color:#fff;overflow:hidden}
.split-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:78vh}
.split-media{position:relative;overflow:hidden}
.split-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.split-copy{display:flex;flex-direction:column;justify-content:center;padding:clamp(48px,7vw,110px)}
.split-copy .kicker{color:var(--violet-lt);margin-bottom:28px}
.split-copy h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,3.8vw,54px);line-height:1.06;letter-spacing:-.02em;margin-bottom:24px;text-wrap:balance}
.split-copy p{color:rgba(255,255,255,.72);font-size:17px;max-width:44ch}
.split-copy p + p{margin-top:18px}
.split-quote{margin-top:34px;padding-left:20px;border-left:2px solid var(--orange);font-family:var(--serif);font-style:italic;font-size:20px;color:#fff}

/* =====================================================================
   COME FUNZIONA
   ===================================================================== */
.lp-how{background:var(--cream)}
.how-head{max-width:60ch;margin-bottom:64px}
.how-head .kicker{color:var(--violet);margin-bottom:24px}
.how-head h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.4vw,58px);line-height:1.04;letter-spacing:-.02em;text-wrap:balance}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}
.step{position:relative}
.step .idx{font-family:var(--serif);font-style:italic;font-size:56px;line-height:1;color:transparent;-webkit-text-stroke:1.4px rgba(20,18,26,.28);margin-bottom:20px}
.step .st-ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;color:#fff;margin-bottom:18px}
.step .st-ic svg{width:26px;height:26px;stroke-width:1.8;fill:none;stroke:currentColor}
.step h3{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:10px}
.step p{color:var(--muted);font-size:15.5px}
.how-note{margin-top:56px;display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 30px}
.how-note .badge{flex:none;width:46px;height:46px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:800}
.how-note h4{font-size:17px;font-weight:700;margin-bottom:5px}
.how-note p{color:var(--muted);font-size:15px}

/* =====================================================================
   I MONDI (galleria cause)
   ===================================================================== */
.lp-worlds{background:var(--night);color:#fff;position:relative}
.worlds-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:52px;flex-wrap:wrap}
.worlds-head .kicker{color:var(--violet-lt);margin-bottom:22px}
.worlds-head h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4vw,52px);line-height:1.04;letter-spacing:-.02em;max-width:16ch}
.worlds-head p{color:rgba(255,255,255,.6);max-width:34ch;font-size:15.5px}
.worlds-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.world{position:relative;border-radius:20px;overflow:hidden;min-height:280px;display:flex;align-items:flex-end;isolation:isolate}
.world img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.world::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,transparent 30%,rgba(8,7,12,.86) 100%)}
.world:hover img{transform:scale(1.06)}
.world-body{padding:24px}
.world .wtag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#fff;background:rgba(255,255,255,.16);backdrop-filter:blur(6px);padding:5px 11px;border-radius:100px;margin-bottom:12px}
.world h3{font-family:var(--serif);font-weight:500;font-size:26px;line-height:1.1}
.world p{color:rgba(255,255,255,.75);font-size:14px;margin-top:6px;max-width:36ch}
.w-lg{grid-column:span 7}
.w-sm{grid-column:span 5}
.w-md{grid-column:span 4}
.w-tall{min-height:380px}

/* =====================================================================
   STATS / IMPATTO
   ===================================================================== */
.lp-stats{background:var(--cream-2)}
.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.stat-b{text-align:center;padding:20px}
.stat-b .n{font-family:var(--serif);font-weight:400;font-size:clamp(44px,6vw,78px);line-height:1;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-b .l{margin-top:12px;font-size:14px;color:var(--muted);font-weight:500;letter-spacing:.02em}
.stats-sep{width:1px;background:var(--line)}

/* =====================================================================
   CTA FINALE (full-bleed)
   ===================================================================== */
.lp-cta{position:relative;min-height:88vh;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.lp-cta .bg{position:absolute;inset:0;background:url('../assets/landing/sunset.jpg') center/cover no-repeat}
.lp-cta .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,14,.55),rgba(10,9,14,.4) 50%,rgba(10,9,14,.75))}
.lp-cta .wrap{position:relative;z-index:2}
.lp-cta .kicker{justify-content:center;color:rgba(255,255,255,.85);margin-bottom:28px}
.lp-cta .kicker::before{display:none}
.lp-cta h2{font-family:var(--serif);font-weight:400;font-size:clamp(34px,6vw,82px);line-height:1.02;letter-spacing:-.02em;max-width:18ch;margin:0 auto;text-wrap:balance;text-shadow:0 2px 40px rgba(0,0,0,.4)}
.lp-cta p{margin:24px auto 0;max-width:50ch;font-size:18px;color:rgba(255,255,255,.85)}
.lp-cta .hero-actions{justify-content:center;margin-top:40px}

/* =====================================================================
   FOOTER
   ===================================================================== */
.lp-footer{background:var(--night);color:rgba(255,255,255,.7);padding:64px 0 40px}
.foot-top{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand{display:flex;align-items:center;margin-bottom:18px}
.foot-brand img{width:74px;height:56px;object-fit:contain;object-position:left}
.foot-col p{font-size:14.5px;max-width:38ch;color:rgba(255,255,255,.6)}
.foot-col h5{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px;font-weight:700}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14.5px;color:rgba(255,255,255,.65);transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:26px;font-size:13px;color:rgba(255,255,255,.45);flex-wrap:wrap}
.foot-bottom .grad-dot{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:900px){
  .wrap{padding:0 20px}
  .lp-nav{display:none}
  /* su mobile basta il bottone "Entra": l'hamburger sarebbe ridondante */
  .manifesto-grid{grid-template-columns:1fr;gap:36px}
  .split-grid{grid-template-columns:1fr}
  .split-media{min-height:56vh}
  .steps{grid-template-columns:1fr;gap:38px}
  .worlds-grid{grid-template-columns:1fr}
  .w-lg,.w-sm,.w-md{grid-column:auto}
  .world{min-height:250px}
  .stats-grid{grid-template-columns:1fr}
  .stats-sep{display:none}
  .stat-b{padding:22px 0;border-bottom:1px solid var(--line)}
  .stats-grid .stat-b:last-child{border-bottom:none}
  .foot-top{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand-col{grid-column:1/-1}
}
@media (max-width:560px){
  .lp-brand .brand-logo{width:48px;height:36px}
  .lp-hero .wrap{padding-bottom:11vh}
  .hero-actions .btn{flex:1;justify-content:center}
  .photo-credit{display:none}
  .foot-top{grid-template-columns:1fr}
}
