:root{
  --night:#0B1129; --navy:#0F1734; --ink:#1A2033; --teal:#14B8A6; --teal-d:#0FA394; --mint:#8FE3D8; --tint:#E3F6F3;
  --sun:#F6C76B; --rose:#F4A99A; --muted:#667085; --line:#E4E7EC; --soft:#B9C0D6; --radius:22px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Montserrat",system-ui,sans-serif;color:var(--ink);background:var(--night);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--teal-d)}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:860px}
h1,h2,h3{letter-spacing:-.02em}
h2{font-size:clamp(30px,4.4vw,52px);line-height:1.08;margin:0 0 20px;font-weight:800}
.lead{font-size:19px;max-width:640px;margin:0 0 36px}
.muted{opacity:.55}
.eyebrow{font-size:13px;letter-spacing:.28em;text-transform:uppercase;color:var(--mint);font-weight:700;margin:0 0 16px}
.eyebrow.dark{color:var(--teal-d)}
.src{font-size:12.5px;opacity:.6;margin-top:22px}

/* progress bar */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:30}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--sun))}

/* header */
.logo{display:inline-flex;align-items:baseline;font-weight:700;font-size:28px;letter-spacing:-.6px;color:#fff;text-decoration:none}
.logo svg{width:.62em;height:.62em;margin:0 1px}
header.top{position:fixed;top:0;left:0;right:0;z-index:20;transition:background .4s,backdrop-filter .4s,box-shadow .4s}
header.top.scrolled{background:rgba(11,17,41,.72);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(255,255,255,.06)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
nav a{margin-left:26px;color:#D7DCEC;text-decoration:none;font-weight:500;font-size:15px;transition:color .2s}
nav a:hover{color:#fff}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--teal-d);color:#fff;padding:16px 28px;border-radius:999px;font-weight:700;text-decoration:none;border:0;cursor:pointer;font-family:inherit;font-size:16px;transition:transform .25s var(--ease),box-shadow .25s,background .25s}
.btn:hover{transform:translateY(-2px);background:#11b3a2;box-shadow:0 12px 30px rgba(20,184,166,.35)}
.btn.small{padding:10px 20px;font-size:14px;color:#fff}
.btn.ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.22)}
.btn.ghost:hover{box-shadow:inset 0 0 0 2px rgba(255,255,255,.6)}
.btn.full{width:100%}
.glow-btn{position:relative}
.glow-btn::after{content:"";position:absolute;inset:-3px;border-radius:inherit;box-shadow:0 0 0 0 rgba(20,184,166,.6);animation:pulse 2.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(20,184,166,.5)}70%{box-shadow:0 0 0 18px rgba(20,184,166,0)}100%{box-shadow:0 0 0 0 rgba(20,184,166,0)}}

/* hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;background:radial-gradient(1200px 700px at 75% 20%,#1B2A63 0%,var(--night) 60%)}
#stars{position:absolute;inset:0;width:100%;height:100%}
.hero-in{position:relative;z-index:2;padding-top:90px;padding-bottom:160px}
.hero h1{font-size:clamp(40px,6.4vw,84px);line-height:1.02;margin:0 0 26px;font-weight:800;max-width:820px}
.grad{background:linear-gradient(100deg,var(--teal) 10%,var(--mint) 50%,var(--sun) 95%);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:shine 8s ease-in-out infinite alternate}
@keyframes shine{to{background-position:100% 0}}
.sub{font-size:clamp(18px,2vw,22px);color:var(--soft);max-width:620px;margin:0 0 38px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.moon-wrap{position:absolute;right:3%;top:11%;width:clamp(200px,26vw,380px);aspect-ratio:1;z-index:1;will-change:transform}
.moon{width:100%;height:100%;animation:float 9s ease-in-out infinite;filter:drop-shadow(0 0 40px rgba(20,184,166,.45))}
.glow{position:absolute;inset:-30%;background:radial-gradient(circle,rgba(20,184,166,.25),transparent 60%);animation:breathe 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px) rotate(-3deg)}}
@keyframes breathe{50%{opacity:.5;transform:scale(1.08)}}
.city{position:absolute;left:0;right:0;bottom:0;height:220px;z-index:1}
.city svg{width:100%;height:100%;display:block}
.windows rect{opacity:0;transition:opacity 1.2s}
.windows rect.on{opacity:.9}

/* story words */
.story{background:var(--night);color:#fff;padding:140px 0}
.words{font-size:clamp(28px,4.2vw,50px);line-height:1.25;font-weight:700;margin:0;letter-spacing:-.01em}
.words .w{opacity:.14;transition:opacity .35s}
.words .w.lit{opacity:1}
.words em{font-style:normal;color:var(--teal)}

/* stats */
.stats-sec{background:var(--night);color:#fff;padding:0 0 120px}
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.stat-card{background:linear-gradient(180deg,#141C3F,#0F1734);border:1px solid #232D5C;border-radius:var(--radius);padding:34px}
.num{font-size:clamp(56px,7vw,84px);font-weight:800;line-height:1;background:linear-gradient(120deg,var(--teal),var(--mint));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-card p{color:var(--soft);margin:14px 0 0;font-size:16.5px}

/* sticky night */
.night{background:linear-gradient(180deg,var(--night) 0%,#101A44 100%);color:#fff;padding:120px 0 140px}
.night-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;margin-top:40px}
.phone-col{position:relative}
.phone{position:sticky;top:110px;width:300px;height:600px;margin:0 auto;border-radius:46px;background:#05081A;padding:14px;box-shadow:0 40px 90px rgba(0,0,0,.55),inset 0 0 0 2px #2A3566}
.notch{position:absolute;top:22px;left:50%;transform:translateX(-50%);width:96px;height:26px;border-radius:20px;background:#000;z-index:2}
.screen{position:relative;height:100%;border-radius:34px;overflow:hidden;padding:80px 22px 22px;background:linear-gradient(180deg,#141F52,#0B1129);transition:background 1s var(--ease)}
.screen.warn{background:linear-gradient(180deg,#3B1F3A,#141029)}
.screen.go{background:linear-gradient(180deg,#0E3B44,#0B1A29)}
.screen.sun{background:linear-gradient(180deg,#F6C76B,#F4A99A 55%,#8FE3D8)}
.clock{font-size:64px;font-weight:300;text-align:center;letter-spacing:-2px;transition:color .6s}
.state{text-align:center;font-weight:600;color:var(--soft);margin-bottom:34px;transition:color .6s}
.screen.sun .clock,.screen.sun .state{color:#1A2033}
.bubble{background:rgba(255,255,255,.95);color:var(--ink);border-radius:18px;padding:14px 16px;font-size:14.5px;line-height:1.45;box-shadow:0 12px 30px rgba(0,0,0,.25);transition:transform .5s var(--ease),opacity .5s}
.bubble.swap{transform:translateY(12px) scale(.97);opacity:0}
.ring{position:absolute;left:50%;bottom:60px;width:70px;height:70px;margin-left:-35px;border-radius:50%;border:2px solid rgba(20,184,166,.6);opacity:0}
.screen.warn .ring{opacity:1;border-color:rgba(244,169,154,.8);animation:ringp 1.4s infinite}
@keyframes ringp{from{transform:scale(.6);opacity:1}to{transform:scale(1.8);opacity:0}}
.steps{padding-bottom:20px}
.step{min-height:62vh;display:flex;flex-direction:column;justify-content:center;opacity:.25;transition:opacity .5s,transform .5s var(--ease);transform:translateX(10px)}
.step.active{opacity:1;transform:none}
.step .t{font-size:15px;font-weight:700;color:var(--teal);letter-spacing:.1em}
.step h3{font-size:clamp(24px,2.8vw,34px);line-height:1.15;margin:10px 0 12px}
.step p{color:var(--soft);font-size:18px;margin:0;max-width:480px}

.mini{display:none;margin-top:16px;background:rgba(255,255,255,.95);color:var(--ink);border-radius:16px;padding:12px 14px;font-size:14.5px;max-width:420px;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.mini small{display:block;color:var(--muted);font-weight:600;font-size:12px;margin-bottom:4px}

/* house */
.house{background:#F6F8FA;color:var(--ink);padding:130px 0;border-radius:40px 40px 0 0;margin-top:-40px;position:relative}
.house h2{color:var(--navy)}
.house .lead{color:var(--muted)}
.house .eyebrow{color:var(--teal-d)}
.house-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:center}
.plan{background:var(--navy);border-radius:var(--radius);padding:18px;box-shadow:0 30px 60px rgba(15,23,52,.25)}
.plan svg{width:100%;height:auto;display:block}
.s{cursor:pointer}
.s .dot{fill:var(--teal-d);transition:fill .3s,r .3s}
.s text{fill:#fff;font:700 14px Montserrat;text-anchor:middle}
.s .wave{fill:none;stroke:var(--teal);stroke-width:2;opacity:0;transform-box:fill-box;transform-origin:center;animation:wave 2.8s infinite}
.s .w2{animation-delay:1.4s}
.s.hot .dot{fill:var(--sun)}
@keyframes wave{0%{transform:scale(1);opacity:.8}100%{transform:scale(3.4);opacity:0}}
.sensor-list{list-style:none;padding:0;margin:0;counter-reset:s}
.sensor-list li{counter-increment:s;position:relative;padding:14px 16px 14px 58px;border-radius:16px;transition:background .3s,transform .3s var(--ease);cursor:default}
.sensor-list li::before{content:counter(s);position:absolute;left:14px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--tint);color:var(--teal-d);font-weight:700;display:grid;place-items:center;font-size:14px}
.sensor-list li.hot,.sensor-list li:hover{background:#fff;transform:translateX(4px);box-shadow:0 10px 24px rgba(15,23,52,.08)}
.sensor-list b{display:block;color:var(--navy)}
.sensor-list span{color:var(--muted);font-size:15px}
.pills{margin-top:40px;display:flex;flex-wrap:wrap;gap:10px}
.pills span{background:var(--tint);color:var(--teal-d);border-radius:999px;padding:8px 16px;font-size:14px;font-weight:600}

/* why */
.why{background:#fff;color:var(--ink);padding:120px 0}
.why h2{color:var(--navy)}
.why .eyebrow{color:var(--teal-d)}
.compare{margin-top:30px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.row{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.1fr;font-size:15px}
.row>span{padding:16px 18px;border-top:1px solid var(--line)}
.row.head>span{border-top:0;font-weight:700;color:var(--navy);background:#F6F8FA}
.row>span:first-child{font-weight:600;color:var(--navy)}
.row .hl{background:var(--tint)}
.row.head .hl{background:var(--teal-d);color:#fff}
.y::before{content:"✓ ";color:var(--teal-d);font-weight:800}
.n::before{content:"✕ ";color:#E25C6B;font-weight:800}
.m::before{content:"~ ";color:#D9A23A;font-weight:800}
.n,.m{color:var(--muted)}
.levels{margin-top:50px}
.lv{background:#F6F8FA;border-radius:var(--radius);padding:30px;transition:transform .35s var(--ease),box-shadow .35s}
.lv:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(15,23,52,.1)}
.lv .ico{font-size:30px;color:var(--teal-d)}
.lv h3{margin:10px 0 6px;color:var(--navy);font-size:21px}
.lv p{margin:0;color:var(--muted)}

/* enti */
.enti{background:#fff;padding:0 0 120px}
.enti-card{background:radial-gradient(800px 400px at 90% 0%,#1B2A63,var(--navy));color:#fff;border-radius:32px;padding:clamp(30px,5vw,64px);display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.enti-card .lead{color:var(--soft)}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{padding:12px 0 12px 36px;position:relative;border-bottom:1px solid rgba(255,255,255,.1);font-weight:600}
.ticks li::before{content:"✓";position:absolute;left:0;top:11px;width:24px;height:24px;border-radius:50%;background:var(--teal-d);color:#fff;display:grid;place-items:center;font-size:13px}
.ticks.dark li{border-color:rgba(15,23,52,.1);color:var(--navy)}

/* dawn / form */
.dawn{background:linear-gradient(180deg,#fff 0%,#FFF4E0 35%,#FBD9C9 100%);padding:120px 0}
.dawn h2{color:var(--navy)}
.dawn .lead{color:#4A5168}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.form-card{background:#fff;border-radius:28px;padding:34px;box-shadow:0 30px 70px rgba(15,23,52,.15)}
form{display:grid;gap:14px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{font-size:14px;font-weight:600;color:var(--navy)}
label small{font-weight:500;color:var(--muted)}
input,select,textarea{width:100%;padding:14px;border:1.5px solid var(--line);border-radius:14px;font:inherit;font-size:16px;margin-top:6px;background:#fff;transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--teal);box-shadow:0 0 0 4px rgba(20,184,166,.15)}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:14px;color:var(--muted)}
.check input{width:auto;margin-top:3px}
.hp{display:none}
.esito{font-size:14px;color:var(--teal-d);margin:0;min-height:20px}

/* faq */
.faq{background:#FBD9C9;padding:40px 0 120px}
.faq h2{color:var(--navy)}
details{background:rgba(255,255,255,.7);border-radius:18px;padding:20px 24px;margin-bottom:12px;transition:background .3s}
details[open]{background:#fff}
summary{font-weight:700;cursor:pointer;color:var(--navy);font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:24px;line-height:1;color:var(--teal-d);transition:transform .3s}
details[open] summary::after{transform:rotate(45deg)}
details p{color:#4A5168;margin:12px 0 0}

/* footer */
footer{background:var(--night);color:#8F98B8;padding:46px 0;font-size:14px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot p{margin:0;color:var(--mint);font-weight:600}
footer a{color:#cfd5e8}

/* pagine e modulo a comparsa */
.g4{grid-template-columns:repeat(4,1fr)}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
.teaser{background:var(--night);color:#fff;padding:20px 0 130px}
.t-card{background:linear-gradient(180deg,#141C3F,#0F1734);border:1px solid #232D5C;border-radius:var(--radius);padding:28px;transition:transform .35s var(--ease),border-color .35s}
.t-card:hover{transform:translateY(-6px);border-color:var(--teal)}
.t-card span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:rgba(20,184,166,.15);color:var(--mint);font-weight:800}
.t-card h3{margin:16px 0 6px;font-size:21px}
.t-card p{margin:0;color:var(--soft);font-size:16px}
.band{padding:110px 0}
.page-hero{position:relative;color:#fff;padding:170px 0 90px;background:radial-gradient(1000px 500px at 80% 0%,#1B2A63 0%,var(--night) 65%)}
.page-hero h1{font-size:clamp(36px,5.4vw,68px);line-height:1.05;margin:0 0 22px;font-weight:800}
.sub-page header.top{background:rgba(11,17,41,.85);backdrop-filter:blur(14px)}
.dawn.solo{padding:160px 0 110px;min-height:100vh}
.faq.light{background:#fff;padding-top:0}
.faq.light details{background:#F6F8FA}
nav a.cur{color:#fff;font-weight:700}
dialog.join{border:0;padding:0;background:transparent;width:min(560px,calc(100% - 32px));max-height:calc(100% - 32px);overflow:auto}
dialog.join::backdrop{background:rgba(7,12,31,.72);backdrop-filter:blur(6px)}
dialog.join[open]{animation:pop .45s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(30px) scale(.97)}}
dialog.join .form-card{position:relative;padding:34px 30px 28px}
dialog.join h2{font-size:28px;color:var(--navy);margin:0 0 6px;padding-right:40px}
dialog.join .intro{color:var(--muted);margin:0 0 18px;font-size:15.5px}
.x{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:50%;border:0;background:#F2F4F7;color:var(--navy);font-size:22px;cursor:pointer;line-height:1}
.x:hover{background:var(--tint)}

/* reveal */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.12s}.d2{transition-delay:.24s}.d3{transition-delay:.36s}.d4{transition-delay:.48s}

@media (max-width:900px){
  nav a:not(.btn){display:none}
  .g3{grid-template-columns:1fr}
  .g4{grid-template-columns:1fr 1fr}
  .night-grid{grid-template-columns:1fr;gap:0}
  .phone-col{display:none}
  .step{min-height:auto;opacity:1;transform:none;margin-bottom:44px}
  .step p{font-size:16px}
  .mini{display:block!important}
  .house-grid,.form-grid,.enti-card{grid-template-columns:1fr}
  .row{grid-template-columns:1.3fr 1fr 1fr 1fr 1fr;font-size:13px}
  .row>span{padding:12px 10px}
  .moon-wrap{right:-14%;top:9%;opacity:.55}
}
@media (max-width:560px){
  .two{grid-template-columns:1fr}
  .g4{grid-template-columns:1fr}
  .compare{overflow-x:auto}
  .row{min-width:680px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .words .w{opacity:1}
}