/* ============================================================
   MEDIALUNA.LAB — DESIGN SYSTEM "NOTTE MEDIALUNA"
   Condiviso da index.html e luna-ai-lab.html
   ============================================================ */
:root{
  --bg:        #071614;   /* verde nerissimo — fondo */
  --bg-soft:   #0A1F1B;   /* sezioni alternate */
  --card:      #0C2621;   /* superfici */
  --verde:     #155249;   /* verde smeraldo brand */
  --verde-lum: #1F7A66;   /* verde luminoso */
  --oro:       #c8963b;   /* oro brand — accento principale */
  --oro-lum:   #E8C98A;   /* oro chiaro */
  --avorio:    #f5f1eb;   /* testo principale */
  --muted:     rgba(245,241,235,.62);
  --muted-2:   rgba(245,241,235,.42);
  --linea:     rgba(200,150,59,.18);
  --display:'Cormorant Garamond',Georgia,serif;
  --body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--avorio);font-family:var(--body);
  font-weight:300;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.wrap-sm{max-width:880px;margin:0 auto;padding:0 28px}
section{position:relative}
a{color:inherit}

/* ---------- tipografia ---------- */
h1,h2,h3{font-family:var(--display);font-weight:300;line-height:1.12;letter-spacing:-.01em}
.eyebrow{
  font-family:var(--body);font-size:.72rem;font-weight:500;letter-spacing:.22em;
  text-transform:uppercase;color:var(--oro);
}
.oro-grad{
  background:linear-gradient(100deg,var(--oro) 0%,var(--oro-lum) 45%,var(--oro) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  /* text-fill-color batte 'color' a prescindere dall'ordine delle regole:
     senza questo, .hero-l1{color:var(--avorio)} vince a parita' di specificita' */
  -webkit-text-fill-color:transparent;
}

/* ---------- reveal allo scroll ---------- */
.rv{opacity:0;transform:translateY(34px);transition:opacity .9s cubic-bezier(.22,1,.36,1),transform .9s cubic-bezier(.22,1,.36,1)}
.rv.in{opacity:1;transform:none}
.rv[data-d="1"]{transition-delay:.10s}
.rv[data-d="2"]{transition-delay:.20s}
.rv[data-d="3"]{transition-delay:.30s}
.rv[data-d="4"]{transition-delay:.40s}

/* ---------- bottoni ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;font-family:var(--body);
  font-size:.92rem;font-weight:500;letter-spacing:.02em;padding:1rem 2rem;
  border-radius:100px;text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s,background .35s,border-color .35s;
}
.btn svg{transition:transform .35s;flex-shrink:0}
.btn:hover svg{transform:translateX(4px)}
.btn-oro{background:linear-gradient(100deg,var(--oro),#b8851f);color:#0B1F1A}
.btn-oro:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(200,150,59,.34)}
.btn-ghost{border-color:var(--linea);color:var(--avorio);background:rgba(245,241,235,.03)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--oro);background:rgba(200,150,59,.08)}

/* ============================================================
   NAV
   ============================================================ */
nav{
  position:fixed;inset:0 0 auto 0;z-index:100;padding:1.4rem 0;
  transition:background .4s,backdrop-filter .4s,padding .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
nav.scrolled{
  background:rgba(7,22,20,.82);backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);padding:.85rem 0;border-bottom-color:var(--linea);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:2rem}
.brand{font-family:var(--display);font-size:1.45rem;letter-spacing:.01em;text-decoration:none;color:var(--avorio)}
.brand span{color:var(--oro)}
.nav-links{display:flex;align-items:center;gap:2.2rem;list-style:none}
.nav-links a{
  font-size:.86rem;font-weight:400;letter-spacing:.04em;text-decoration:none;
  color:var(--muted);position:relative;padding:.25rem 0;transition:color .3s;
}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--oro);transition:width .35s cubic-bezier(.22,1,.36,1);
}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--avorio)}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{width:100%}
.nav-cta{
  font-size:.82rem;font-weight:500;padding:.62rem 1.35rem;border-radius:100px;
  border:1px solid var(--linea);text-decoration:none;color:var(--oro);
  transition:background .3s,border-color .3s;white-space:nowrap;
}
.nav-cta:hover{background:rgba(200,150,59,.12);border-color:var(--oro)}
/* variante piena: per la CTA che deve saltare all'occhio */
.nav-cta.evidente{
  background:linear-gradient(100deg,var(--oro),#b8851f);color:#0B1F1A;
  border-color:transparent;
  transition:transform .3s cubic-bezier(.22,1,.36,1),box-shadow .3s;
}
.nav-cta.evidente:hover{
  background:linear-gradient(100deg,var(--oro),#b8851f);border-color:transparent;
  transform:translateY(-1px);box-shadow:0 8px 26px rgba(200,150,59,.35);
}
/* su schermo stretto l'etichetta si accorcia invece di sparire */
.etichetta-corta{display:none}
.burger{display:none;background:none;border:0;cursor:pointer;padding:.5rem;width:44px;height:44px}
.burger span{display:block;height:1.5px;width:24px;background:var(--avorio);margin:5px 0;transition:transform .35s,opacity .25s}
.burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ============================================================
   HERO
   ============================================================ */
#hero{min-height:100svh;display:flex;align-items:center;overflow:hidden;padding:9rem 0 5rem}
#hero.hero-corto{min-height:auto;padding:12rem 0 6rem}
/* width/height espliciti: su <canvas> (elemento sostituito) inset:0 da solo
   non stira nulla, resterebbe alla dimensione intrinseca 300x150 */
#particles{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(120px);pointer-events:none;z-index:0}
.glow-a{top:8%;left:-6%;width:min(46vw,540px);aspect-ratio:1;background:var(--verde-lum);opacity:.22}
.glow-b{bottom:2%;right:-8%;width:min(42vw,480px);aspect-ratio:1;background:var(--oro);opacity:.14}
.hero-in{position:relative;z-index:2;max-width:960px}
.pill{
  display:inline-flex;align-items:center;gap:.6rem;padding:.5rem 1.15rem;border-radius:100px;
  background:rgba(245,241,235,.05);border:1px solid var(--linea);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);margin-bottom:2.2rem;
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--oro);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.8)}}

.hero-h1{margin-bottom:1.6rem}
.hero-l1{display:block;font-size:clamp(2.5rem,6.6vw,5.4rem);color:var(--avorio)}
.hero-l1.marchio{letter-spacing:.02em;font-weight:400}
.hero-l2{
  display:block;margin-top:1.1rem;font-size:clamp(1.15rem,2.35vw,2rem);
  line-height:1.35;font-style:italic;max-width:24ch;
}
.hero-sub{
  font-size:clamp(1rem,1.25vw,1.12rem);color:var(--muted);max-width:56ch;margin-bottom:2.8rem;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}
.scroll-hint{
  position:absolute;left:50%;bottom:2.2rem;transform:translateX(-50%);z-index:2;
  font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2);
  display:flex;flex-direction:column;align-items:center;gap:.7rem;
}
.scroll-hint em{display:block;width:1px;height:42px;background:linear-gradient(var(--oro),transparent);animation:drop 2.4s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- forme fluttuanti ---------- */
.float{position:absolute;border:1px solid var(--linea);opacity:.5;z-index:1;pointer-events:none}
.float-1{top:16%;right:9%;width:88px;height:88px;border-radius:22px;animation:f1 14s ease-in-out infinite}
.float-2{bottom:20%;left:6%;width:60px;height:60px;border-radius:50%;animation:f2 11s ease-in-out infinite}
@keyframes f1{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-26px) rotate(90deg)}}
@keyframes f2{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(22px) scale(1.18)}}

/* ============================================================
   SEZIONI GENERICHE
   ============================================================ */
.sec{padding:8rem 0}
.sec-soft{background:var(--bg-soft)}
.sec-head{max-width:760px;margin-bottom:4rem}
.sec-head.centro{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.centro p{margin-left:auto;margin-right:auto}
.sec-head.centro .rule{margin-left:auto;margin-right:auto;
  background:linear-gradient(90deg,transparent,var(--oro),transparent)}
.sec-head .eyebrow{display:block;margin-bottom:1.1rem}
.sec-head h2{font-size:clamp(2rem,4.2vw,3.4rem);margin-bottom:1.4rem}
.sec-head p{color:var(--muted);font-size:1.05rem;max-width:60ch}
.rule{height:1px;background:linear-gradient(90deg,var(--oro),transparent);width:80px;margin-bottom:2rem}

/* ---------- due colonne contrapposte ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:3rem 0}
.split-card{
  padding:2.4rem;border-radius:20px;border:1px solid var(--linea);
  background:linear-gradient(160deg,rgba(245,241,235,.045),rgba(245,241,235,.012));
}
.split-card h3{font-size:1.5rem;margin-bottom:1rem;color:var(--oro-lum)}
.split-card p{color:var(--muted);font-size:.98rem}
.closing{
  font-family:var(--display);font-size:clamp(1.3rem,2.4vw,1.9rem);font-style:italic;
  line-height:1.45;max-width:44ch;margin-top:1rem;
}

/* ---------- card grandi (strade / livelli) ---------- */
.strade{display:grid;grid-template-columns:1fr 1fr;gap:1.75rem;align-items:start}
.strade.tre{grid-template-columns:repeat(3,1fr);gap:1.35rem}
.strade.tre .strada{padding:2.6rem 2rem}
.strade.tre .strada h3{font-size:clamp(1.5rem,2.2vw,1.95rem)}
.strada{
  position:relative;padding:3rem 2.6rem;border-radius:24px;overflow:hidden;
  border:1px solid var(--linea);background:var(--card);
  transition:transform .5s cubic-bezier(.22,1,.36,1),border-color .5s,box-shadow .5s;
}
.strada::before{
  content:'';position:absolute;inset:0;opacity:0;transition:opacity .5s;
  background:radial-gradient(600px circle at 50% 0%,rgba(200,150,59,.11),transparent 65%);
}
.strada:hover{transform:translateY(-8px);border-color:rgba(200,150,59,.42);box-shadow:0 24px 70px rgba(0,0,0,.45)}
.strada:hover::before{opacity:1}
.strada.evidenza{border-color:rgba(200,150,59,.42)}
.strada > *{position:relative;z-index:1}
.strada .se{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);display:block;margin-bottom:.9rem}
.strada .cond{color:var(--muted);font-size:.95rem;margin-bottom:1.8rem;padding-bottom:1.8rem;border-bottom:1px solid var(--linea)}
.strada h3{font-size:clamp(1.9rem,3vw,2.5rem);margin-bottom:1.3rem}
.quote{
  font-family:var(--display);font-style:italic;font-size:1.18rem;line-height:1.5;
  color:var(--avorio);border-left:2px solid var(--oro);padding-left:1.2rem;margin-bottom:1.6rem;
}
.strada p.desc{color:var(--muted);font-size:.98rem;margin-bottom:1.9rem}
.porte{display:flex;flex-wrap:wrap;gap:.55rem;margin-bottom:2rem}
.porta{
  font-size:.76rem;letter-spacing:.03em;padding:.42rem .95rem;border-radius:100px;
  border:1px solid var(--linea);color:var(--muted);white-space:nowrap;
}
.badge-top{
  position:absolute;top:1.5rem;right:1.5rem;z-index:2;font-family:var(--body);
  font-size:.68rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  padding:.4rem .9rem;border-radius:100px;
  background:linear-gradient(100deg,var(--oro),#b8851f);color:#0B1F1A;
}
.durata{
  font-family:var(--body);font-size:.85rem;letter-spacing:.03em;color:var(--oro);
  display:block;margin:-.6rem 0 1.6rem;
}
.prezzo{
  font-family:var(--display);font-size:2.1rem;line-height:1;color:var(--avorio);
  display:block;margin:0 0 .4rem;
}
.prezzo small{
  font-family:var(--body);font-size:.8rem;font-weight:400;color:var(--muted-2);
  display:block;margin-top:.5rem;letter-spacing:.02em;
}

/* catena degli anelli che non si parlano (sezione "il nodo") */
.catena{list-style:none;margin:2.5rem 0 0;max-width:52ch}
.catena li{
  position:relative;padding:0 0 1.5rem 2.4rem;color:var(--muted);font-size:1.02rem;
}
.catena li::before{
  content:'';position:absolute;left:7px;top:.72em;width:9px;height:9px;
  border-radius:50%;border:1px solid var(--oro);background:var(--bg);
}
.catena li::after{
  content:'';position:absolute;left:11px;top:calc(.72em + 10px);bottom:.3rem;
  width:1px;background:linear-gradient(var(--linea),transparent);
}
.catena li:last-child{padding-bottom:0}
.catena li:last-child::after{display:none}
.catena b{color:var(--avorio);font-weight:400}

/* ---------- liste con segno ---------- */
.lista{list-style:none;margin:0 0 1.9rem}
.lista li{
  position:relative;padding-left:1.9rem;margin-bottom:.85rem;
  color:var(--muted);font-size:.96rem;line-height:1.6;
}
.lista li::before{
  content:'';position:absolute;left:0;top:.62em;width:7px;height:7px;
  border-radius:50%;background:var(--oro);opacity:.8;
}
.lista-si li::before,.lista-no li::before{
  content:none;
}
.lista-si li,.lista-no li{padding-left:2.2rem}
.lista-si li::after,.lista-no li::after{
  position:absolute;left:0;top:0;font-size:1.05rem;line-height:1.6;
}
.lista-si li::after{content:'✓';color:var(--oro)}
.lista-no li::after{content:'✕';color:var(--muted-2)}

/* ---------- passi numerati ---------- */
.pilastri{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.pilastri.tre{grid-template-columns:repeat(3,1fr)}
.pil{
  padding:2.4rem 1.9rem;border-radius:20px;border:1px solid var(--linea);
  background:rgba(245,241,235,.025);transition:transform .45s cubic-bezier(.22,1,.36,1),background .45s,border-color .45s;
}
.pil:hover{transform:translateY(-6px);background:rgba(200,150,59,.06);border-color:rgba(200,150,59,.4)}
.pil .num{font-family:var(--display);font-size:2.6rem;color:var(--oro);opacity:.45;display:block;line-height:1;margin-bottom:1.1rem}
.pil h3{font-size:1.32rem;margin-bottom:.8rem}
.pil p{color:var(--muted);font-size:.92rem;line-height:1.65}

/* ---------- chi sono ---------- */
.chi{display:grid;grid-template-columns:.85fr 1.15fr;gap:4.5rem;align-items:center}
.chi-img{position:relative;border-radius:24px;overflow:hidden;aspect-ratio:4/5}
.chi-img img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.92)}
.chi-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,22,20,.55))}
.chi-txt h2{font-size:clamp(2rem,4vw,3.2rem);margin-bottom:1.8rem}
.chi-txt p{color:var(--muted);margin-bottom:1.15rem;font-size:1.02rem}
.chi-txt p.hi{color:var(--avorio);font-family:var(--display);font-style:italic;font-size:1.35rem;line-height:1.5;margin:2rem 0}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--linea)}
.faq details{border-bottom:1px solid var(--linea)}
.faq summary{
  list-style:none;cursor:pointer;padding:1.6rem 3rem 1.6rem 0;position:relative;
  font-family:var(--display);font-size:clamp(1.15rem,2vw,1.45rem);color:var(--avorio);
  transition:color .3s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--oro-lum)}
.faq summary::after{
  content:'';position:absolute;right:.4rem;top:50%;width:11px;height:11px;
  border-right:1.5px solid var(--oro);border-bottom:1.5px solid var(--oro);
  transform:translateY(-70%) rotate(45deg);transition:transform .35s;
}
.faq details[open] summary::after{transform:translateY(-20%) rotate(-135deg)}
.faq .risposta{color:var(--muted);font-size:.99rem;padding:0 2.5rem 1.8rem 0;max-width:70ch}

/* ---------- CTA finale ---------- */
.finale{padding:9rem 0;text-align:center;position:relative;overflow:hidden}
.finale .glow-c{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(70vw,760px);aspect-ratio:1;border-radius:50%;filter:blur(140px);background:var(--verde);opacity:.2;z-index:0}
.finale .wrap,.finale .wrap-sm{position:relative;z-index:1}
.finale h2{font-size:clamp(2.1rem,4.6vw,3.6rem);max-width:20ch;margin:0 auto 1.6rem}
.finale > .wrap > p,.finale > .wrap-sm > p{color:var(--muted);max-width:58ch;margin:0 auto 3rem;font-size:1.05rem}
.kairos{
  max-width:720px;margin:0 auto 2.6rem;padding:2.4rem;border-radius:22px;
  border:1px solid rgba(200,150,59,.34);
  background:linear-gradient(150deg,rgba(200,150,59,.10),rgba(200,150,59,.02));
}
.kairos .eyebrow{display:block;margin-bottom:.9rem}
.kairos h3{font-size:1.75rem;margin-bottom:.9rem}
.kairos p{color:var(--muted);font-size:.98rem;margin-bottom:1.7rem;max-width:52ch;margin-inline:auto}
.finale-alt{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--linea);padding:5rem 0 2.5rem;background:var(--bg-soft)}
.foot{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3.5rem}
.foot h4{font-family:var(--body);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--oro);margin-bottom:1.3rem;font-weight:500}
.foot p,.foot a{color:var(--muted);font-size:.9rem;text-decoration:none;display:block;margin-bottom:.6rem;transition:color .3s}
.foot a:hover{color:var(--oro)}
.foot .brand{font-size:1.5rem;margin-bottom:1rem;display:block}
.foot-bot{border-top:1px solid var(--linea);padding-top:2rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.foot-bot p{color:var(--muted-2);font-size:.8rem;margin:0}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:900px){
  .nav-links{
    position:fixed;inset:0 0 auto 0;top:0;padding:6.5rem 28px 2.5rem;flex-direction:column;
    align-items:flex-start;gap:1.6rem;background:rgba(7,22,20,.97);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--linea);transform:translateY(-100%);transition:transform .45s cubic-bezier(.22,1,.36,1);
  }
  .nav-links.open{transform:none}
  .nav-links a{font-size:1.25rem;font-family:var(--display);color:var(--avorio)}
  .burger{display:block;z-index:2}
  .nav-cta{display:none}
  /* la CTA in evidenza resta visibile anche da telefono: e' da li' che
     arriva la maggior parte delle persone. Solo l'etichetta si accorcia. */
  .nav-cta.evidente{display:inline-flex;padding:.45rem .95rem;font-size:.74rem}
  .nav-cta.evidente .etichetta-lunga{display:none}
  .nav-cta.evidente .etichetta-corta{display:inline}
  .split,.strade,.strade.tre,.chi{grid-template-columns:1fr}
  .chi{gap:2.5rem}
  .chi-img{max-width:340px}
  .pilastri,.pilastri.tre{grid-template-columns:1fr 1fr}
  .foot{grid-template-columns:1fr 1fr;gap:2.2rem}
  .sec{padding:5.5rem 0}
  #hero.hero-corto{padding:9rem 0 4rem}
  .float{display:none}
  .strada{padding:2.4rem 1.8rem}
  .badge-top{top:1.1rem;right:1.1rem}
}
@media(max-width:560px){
  .wrap,.wrap-sm{padding:0 20px}
  .pilastri,.pilastri.tre{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr}
  .btn{width:100%;justify-content:center}
  .hero-cta{flex-direction:column;align-items:stretch}
  .finale-alt .btn{width:100%}
  .scroll-hint{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}