/* ============================================================
   IMEX Green — analisienergetica.info
   Design system (palette estratta da imexgreen.it)
   ============================================================ */
:root{
  --verde:#96bf0d;          /* primario */
  --verde-scuro:#6f9008;    /* hover / testi su chiaro */
  --verde-chiaro:#abc745;
  --verde-pallido:#d9e5b0;
  --verde-tint:#f4f8e8;     /* sfondi soft */
  --nero:#0d0d0d;
  --grigio:#5b5b5b;
  --grigio-chiaro:#e8eae2;
  --bianco:#ffffff;
  --ombra:0 12px 40px rgba(13,13,13,.10);
  --ombra-sm:0 4px 18px rgba(13,13,13,.08);
  --radius:16px;
  --radius-sm:10px;
  --maxw:1180px;
  --font:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--nero);line-height:1.6;background:var(--bianco);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.18;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem)}
h3{font-size:1.25rem}
p{color:#2b2b2b}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:76px 0}
.section--soft{background:var(--verde-tint)}
.center{text-align:center}
.eyebrow{display:inline-block;font-weight:600;color:var(--verde-scuro);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;margin-bottom:14px}
.lead{font-size:1.12rem;color:var(--grigio);max-width:680px;margin:0 auto}

/* ---- Bottoni ---- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:1rem;padding:14px 28px;border-radius:60px;border:2px solid transparent;cursor:pointer;transition:.2s transform,.2s box-shadow,.2s background;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--verde);color:#fff;box-shadow:0 8px 22px rgba(150,191,13,.38)}
.btn--primary:hover{background:var(--verde-scuro)}
.btn--ghost{background:transparent;border-color:#fff;color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.12)}
.btn--dark{background:var(--nero);color:#fff}
.btn--dark:hover{background:#000}
.btn--lg{padding:17px 36px;font-size:1.06rem}
.btn--block{width:100%;justify-content:center}

/* ---- Topbar ---- */
.topbar{background:var(--nero);color:#dcdcdc;font-size:.84rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:9px;padding-bottom:9px;flex-wrap:wrap}
.topbar a{color:#dcdcdc;display:inline-flex;align-items:center;gap:6px}
.topbar a:hover{color:var(--verde-chiaro)}
.topbar .sep{opacity:.3;margin:0 4px}

/* ---- Header ---- */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--grigio-chiaro)}
.header .container{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:12px;padding-bottom:12px}
.brand img{height:42px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-weight:500;color:var(--nero);font-size:.97rem}
.nav a:hover{color:var(--verde-scuro)}
.nav-toggle{display:none;background:none;border:0;font-size:1.7rem;cursor:pointer;color:var(--nero)}

/* ---- Hero ---- */
.hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(120deg,#0d0d0d 0%,#1c2606 55%,#3a4d0c 100%)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 18%,rgba(150,191,13,.35),transparent 46%);pointer-events:none}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:70px;padding-bottom:84px}
.hero h1{color:#fff}
.hero h1 span{color:var(--verde-chiaro)}
.hero p.sub{font-size:1.16rem;color:#e6e9da;margin:20px 0 30px;max-width:560px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.trust{display:flex;gap:26px;flex-wrap:wrap;color:#cdd2bd;font-size:.92rem}
.trust b{color:#fff;display:block;font-size:1.5rem;line-height:1}
/* form card nel hero */
.hero-card{background:#fff;color:var(--nero);border-radius:var(--radius);padding:30px;box-shadow:var(--ombra)}
.hero-card h3{font-size:1.35rem;margin-bottom:4px}
.hero-card .muted{color:var(--grigio);font-size:.92rem;margin-bottom:18px}

/* ---- Form ---- */
.field{margin-bottom:14px}
.field label{display:block;font-size:.86rem;font-weight:500;margin-bottom:6px;color:#333}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--grigio-chiaro);border-radius:var(--radius-sm);font-family:inherit;font-size:.97rem;background:#fcfdfa;transition:.15s border-color}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--verde)}
.consent{display:flex;gap:9px;align-items:flex-start;font-size:.8rem;color:var(--grigio);margin:6px 0 16px}
.consent input{margin-top:3px;accent-color:var(--verde)}
.form-note{font-size:.78rem;color:var(--grigio);text-align:center;margin-top:10px}

/* ---- Benefit bar ---- */
.benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:-46px;position:relative;z-index:5}
.benefit{background:#fff;border-radius:var(--radius);padding:26px 22px;box-shadow:var(--ombra-sm);border-top:4px solid var(--verde)}
.benefit .ico{font-size:1.9rem;margin-bottom:10px}
.benefit h3{font-size:1.05rem;margin-bottom:6px}
.benefit p{font-size:.9rem;color:var(--grigio)}

/* ---- Simulatore ---- */
.sim{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.sim-form{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--ombra)}
.sim-toggle{display:flex;background:var(--verde-tint);border-radius:60px;padding:5px;margin-bottom:18px}
.sim-toggle button{flex:1;border:0;background:none;padding:9px;border-radius:60px;font-family:inherit;font-weight:600;font-size:.88rem;cursor:pointer;color:var(--grigio)}
.sim-toggle button.on{background:var(--verde);color:#fff}
.sim-out{background:linear-gradient(135deg,#1c2606,#3a4d0c);color:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--ombra)}
.sim-out .big{font-size:2.6rem;font-weight:700;color:var(--verde-chiaro);line-height:1}
.sim-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}
.sim-grid .k{font-size:.8rem;color:#cdd2bd;text-transform:uppercase;letter-spacing:.05em}
.sim-grid .v{font-size:1.5rem;font-weight:700}
.sim-disclaimer{font-size:.74rem;color:#aeb59b;margin-top:14px}
.range-val{font-weight:600;color:var(--verde-scuro)}

/* ---- Perché noi ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--ombra)}
.checklist{list-style:none;margin-top:18px}
.checklist li{padding-left:34px;position:relative;margin-bottom:13px;color:#2b2b2b}
.checklist li::before{content:"\2713";position:absolute;left:0;top:0;width:22px;height:22px;background:var(--verde);color:#fff;border-radius:50%;font-size:.8rem;display:flex;align-items:center;justify-content:center;font-weight:700}

/* ---- Servizi ---- */
.services{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service{background:#fff;border:1px solid var(--grigio-chiaro);border-radius:var(--radius);padding:26px 22px;transition:.2s transform,.2s box-shadow}
.service:hover{transform:translateY(-4px);box-shadow:var(--ombra);border-color:transparent}
.service .ico{width:50px;height:50px;border-radius:13px;background:var(--verde-tint);color:var(--verde-scuro);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:14px}
.service h3{font-size:1.05rem;margin-bottom:6px}
.service p{font-size:.9rem;color:var(--grigio)}

/* ---- Zone servite ---- */
.zones{display:flex;flex-wrap:wrap;gap:11px;justify-content:center;margin-top:26px}
.zone{background:#fff;border:1px solid var(--grigio-chiaro);border-radius:60px;padding:9px 20px;font-weight:500;font-size:.93rem;transition:.18s}
.zone:hover{background:var(--verde);color:#fff;border-color:transparent}

/* ---- FAQ ---- */
.faq{max-width:820px;margin:30px auto 0}
.faq details{background:#fff;border:1px solid var(--grigio-chiaro);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}
.faq summary{padding:18px 22px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--verde-scuro);transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 22px 20px;color:var(--grigio)}

/* ---- CTA finale ---- */
.cta-final{background:linear-gradient(120deg,#0d0d0d,#3a4d0c);color:#fff;border-radius:24px;padding:54px;text-align:center;position:relative;overflow:hidden}
.cta-final::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 120%,rgba(150,191,13,.4),transparent 50%)}
.cta-final>*{position:relative;z-index:2}
.cta-final h2{color:#fff;margin-bottom:12px}
.cta-final p{color:#e6e9da;max-width:560px;margin:0 auto 26px}

/* ---- Footer ---- */
.footer{background:var(--nero);color:#b9bcaf;padding:60px 0 26px;font-size:.92rem}
.footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer img{height:40px;margin-bottom:16px}
.footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.footer a{color:#b9bcaf;display:block;margin-bottom:8px}
.footer a:hover{color:var(--verde-chiaro)}
.footer .addr{color:#9a9d90;line-height:1.8}
.footer .bottom{border-top:1px solid #2a2a22;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#7e8175;font-size:.82rem}

/* ---- Toast / messaggi ---- */
.alert{padding:14px 18px;border-radius:var(--radius-sm);font-size:.92rem;margin-bottom:14px;display:none}
.alert--ok{background:#eaf5d6;color:#42600a;border:1px solid var(--verde-chiaro);display:block}
.alert--err{background:#fbe9e9;color:#9b2c2c;border:1px solid #e8b4b4;display:block}

/* ---- WhatsApp float ---- */
.wa{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.7rem;box-shadow:0 8px 24px rgba(37,211,102,.5);transition:.2s transform}
.wa:hover{transform:scale(1.08)}

/* ============== Responsive ============== */
@media(max-width:900px){
  .hero .container{grid-template-columns:1fr;gap:30px;padding-top:48px;padding-bottom:54px}
  .benefits{grid-template-columns:1fr 1fr;margin-top:24px}
  .sim,.split{grid-template-columns:1fr;gap:26px}
  .services{grid-template-columns:1fr 1fr}
  .footer .grid{grid-template-columns:1fr;gap:28px}
  .nav{position:fixed;inset:64px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 22px;gap:0;border-bottom:1px solid var(--grigio-chiaro);box-shadow:var(--ombra);display:none}
  .nav.open{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--grigio-chiaro)}
  .nav .btn{margin-top:12px;justify-content:center}
  .nav-toggle{display:block}
}
@media(max-width:520px){
  .benefits,.services,.sim-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .cta-final{padding:36px 22px}
}