/* =========================================================
   FONDAZIONE ENERGIE COMUNI — Concept B: "Ispirato a Exalto"
   Ispirazione: identità blu-petrolio/ciano corporate del socio fondatore
   Exalto Energy & Innovation. Stile tecnico/ingegneristico, angoli vivi,
   pattern "numeri in evidenza" e card di servizio.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700;800&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;1,500&family=Space+Mono:wght@500;700&display=swap');

:root{
  --forest:      #0b4f8a;   /* blu Exalto primario */
  --forest-deep: #082f54;   /* blu profondo */
  --navy:        #082033;   /* blu quasi nero, per bande scure */
  --teal:        #1ca7c4;   /* ciano accento */
  --leaf:        #6fb8cc;   /* ciano chiaro */
  --leaf-bright: #2f9a5f;   /* verde tecnico, accento raro */
  --gold:        #1ca7c4;   /* nessun oro nella palette corporate: alias sul ciano */
  --gold-soft:   #7fd0e2;
  --paper:       #f4f6f8;   /* grigio freddo chiarissimo */
  --paper-dim:   #eaeef2;
  --ink:         #10202b;
  --ink-soft:    #52626e;
  --line: rgba(16,32,43,0.12);
  --white: #ffffff;

  --f-display: "Sora", ui-sans-serif, system-ui, sans-serif;
  --f-body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --f-mono: "Space Mono", ui-monospace, monospace;

  --radius: 2px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--f-body); font-size:16.5px; line-height:1.64;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}

h1,h2,h3,h4{
  font-family:var(--f-display); font-weight:700; line-height:1.16;
  margin:0 0 .4em; color:var(--forest-deep); letter-spacing:-0.01em;
}
h1{font-size:clamp(2.25rem,4.2vw,3.6rem); font-weight:800;}
h2{font-size:clamp(1.7rem,2.8vw,2.3rem);}
h3{font-size:1.2rem;}
p{margin:0 0 1em;color:var(--ink-soft);}
.lede{font-size:1.1rem;color:var(--ink-soft);max-width:620px;}

.eyebrow{
  font-family:var(--f-mono); font-weight:700; font-size:.72rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--teal);
  display:flex; align-items:center; gap:10px; margin-bottom:16px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--forest);display:inline-block;}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,0.95);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex; align-items:center; justify-content:space-between; height:78px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand img{height:68px;width:auto;}
.brand-text{font-family:var(--f-display); font-weight:700; font-size:.88rem; color:var(--forest-deep); line-height:1.15;}
.brand-text span{display:block;font-size:.64rem;color:var(--ink-soft);font-weight:500;letter-spacing:.03em;font-family:var(--f-body);}

nav.main-nav{display:flex;align-items:center;gap:2px;}
nav.main-nav a{
  font-family:var(--f-body); font-size:.85rem; font-weight:600;
  text-decoration:none; color:var(--ink-soft);
  padding:9px 15px; border-radius:1px; transition:color .18s ease;
}
nav.main-nav a:hover{color:var(--forest);}
nav.main-nav a.active{color:var(--forest); border-bottom:2px solid var(--teal);}

.btn{
  font-family:var(--f-display); font-weight:700; font-size:.8rem;
  text-decoration:none; display:inline-flex; align-items:center; gap:8px;
  padding:13px 24px; border-radius:1px; border:1.5px solid transparent;
  transition:transform .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--forest); color:#fff;}
.btn-primary:hover{background:var(--forest-deep);}
.btn-ghost{border-color:var(--ink-soft); color:var(--forest-deep);}
.btn-ghost:hover{background:var(--paper-dim);}
.btn-gold{background:var(--teal); color:#062938;}
.btn-gold:hover{background:var(--gold-soft);}

.nav-toggle{display:none;}

/* ---------- hero ---------- */
.hero{padding:64px 0 30px; position:relative; overflow:hidden; background:linear-gradient(180deg,#fff,var(--paper) 92%);}
.hero .wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center;}
.hero-copy h1{margin-bottom:.34em;}
.hero-copy .lede{margin-bottom:30px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:34px;}
.hero-facts{display:flex; gap:28px; flex-wrap:wrap; border-top:1px solid var(--line); padding-top:20px;}
.hero-facts div strong{display:block; font-family:var(--f-display); font-size:1.4rem; color:var(--forest-deep);}
.hero-facts div span{font-size:.78rem; color:var(--ink-soft);}
.hero-visual{position:relative;}

.tiles-divider{height:1px; background:var(--line);}

/* ---------- sections ---------- */
section{padding:80px 0;}
section.tight{padding:50px 0;}
.section-head{max-width:640px; margin-bottom:46px;}
.divider{border:none; border-top:1px solid var(--line); margin:0;}

.band-dark{background:linear-gradient(180deg,var(--forest-deep),var(--navy)); color:#e5eef5;}
.band-dark h2, .band-dark h3{color:#fff;}
.band-dark p{color:#a9c6dc;}
.band-dark .eyebrow{color:var(--teal);}
.band-dark .eyebrow::before{background:var(--teal);}

.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.card{background:var(--white); border:none; border-radius:0; padding:30px 28px;}
.card .num{font-family:var(--f-mono); font-weight:700; font-size:.74rem; color:var(--teal); letter-spacing:.06em; margin-bottom:14px; display:block;}
.card h3{margin-bottom:10px;}
.card p{margin:0; font-size:.95rem;}

.stats{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:0; overflow:hidden;}
.stat{background:var(--white); padding:26px 22px;}
.band-dark .stat{background:rgba(255,255,255,0.04);}
.band-dark .stats{background:rgba(255,255,255,0.14); border-color:rgba(255,255,255,0.14);}
.stat strong{font-family:var(--f-display); font-weight:800; font-size:2.05rem; display:block; color:var(--forest-deep); line-height:1;}
.band-dark .stat strong{color:#fff;}
.stat span{font-size:.8rem; color:var(--ink-soft); font-family:var(--f-mono);}
.band-dark .stat span{color:#a9c6dc;}

.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); counter-reset:step;}
.step{position:relative; padding:26px 24px; background:var(--white);}
.band-dark .step{background:transparent;}
.step .step-index{font-family:var(--f-mono); font-weight:700; font-size:1.6rem; color:var(--teal); line-height:1; margin-bottom:12px; display:block;}
.step h4{font-family:var(--f-display); font-weight:700; font-size:.98rem; margin-bottom:8px; color:var(--forest-deep);}
.band-dark .step h4{color:#fff;}
.step p{font-size:.92rem;}

.split{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center;}
.split.reverse .split-media{order:2;}

.tag-list{display:flex; flex-wrap:wrap; gap:10px; margin-top:20px;}
.tag{font-family:var(--f-mono); font-size:.75rem; font-weight:600; border:1px solid var(--line); border-radius:1px; padding:8px 14px; color:var(--forest-deep); background:var(--white);}

.cta-band{background:var(--forest-deep); border-radius:2px; padding:54px 58px; display:flex; align-items:center; justify-content:space-between; gap:40px; color:#fff;}
.cta-band h2{color:#fff; margin-bottom:8px;}
.cta-band p{color:#a9c6dc; margin:0;}
.cta-actions{display:flex; gap:14px; flex-shrink:0;}

footer{background:var(--navy); color:#a9c6dc; padding:60px 0 26px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:44px;}
footer h5{font-family:var(--f-mono); font-size:.74rem; letter-spacing:.08em; text-transform:uppercase; color:var(--teal); margin:0 0 16px;}
footer a{text-decoration:none; color:#a9c6dc; opacity:.9;}
footer a:hover{opacity:1; text-decoration:underline;}
footer .foot-links{display:flex; flex-direction:column; gap:10px; font-size:.9rem;}
footer .brand-text{color:#fff;}
footer .brand-text span{color:#7f9bb0;}
.foot-bottom{border-top:1px solid rgba(255,255,255,0.12); padding-top:22px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:.8rem; color:#7f9bb0;}

.page-hero{padding:56px 0 18px;}
.page-hero .eyebrow{margin-bottom:18px;}
.page-hero h1{max-width:820px;}
.page-hero .lede{max-width:700px;}
.breadcrumb{font-family:var(--f-mono); font-size:.78rem; color:var(--ink-soft); margin-bottom:20px; display:flex; gap:8px; align-items:center;}
.breadcrumb a{color:var(--forest); text-decoration:none;}

.territory{display:grid; grid-template-columns:180px 1fr 140px; gap:24px; align-items:center; padding:20px 0; border-bottom:1px solid var(--line);}
.territory:first-child{border-top:1px solid var(--line);}
.territory .region{font-family:var(--f-display); font-weight:700; font-size:1.15rem; color:var(--forest-deep);}
.territory .desc{font-size:.92rem; color:var(--ink-soft); margin:0;}
.status{font-family:var(--f-mono); font-size:.7rem; font-weight:700; letter-spacing:.04em; padding:6px 12px; border-radius:1px; text-align:center; white-space:nowrap;}
.status.on{background:#dcecf3; color:var(--forest);}
.status.dev{background:#e4f5ec; color:#1f6b40;}

.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:60px;}
.field{margin-bottom:20px;}
.field label{display:block; font-family:var(--f-mono); font-size:.74rem; font-weight:700; letter-spacing:.04em; text-transform:uppercase; color:var(--forest-deep); margin-bottom:8px;}
.field input, .field select, .field textarea{width:100%; font-family:var(--f-body); font-size:1rem; padding:13px 16px; border:1px solid var(--line); border-radius:1px; background:var(--white); color:var(--ink);}
.field textarea{resize:vertical; min-height:120px;}
.field input:focus, .field select:focus, .field textarea:focus{outline:2px solid var(--teal); outline-offset:1px;}
.contact-info{display:flex; flex-direction:column; gap:26px;}
.info-item .eyebrow{margin-bottom:6px;}
.info-item p, .info-item a{margin:0; font-size:1rem; color:var(--ink);}
.form-note{font-size:.8rem; color:var(--ink-soft); margin-top:14px;}

.skip-link{position:absolute; left:-999px; top:auto; background:var(--forest); color:#fff; padding:10px 16px; border-radius:2px; z-index:100;}
.skip-link:focus{left:20px; top:20px;}

@media (max-width: 980px){
  .hero .wrap{grid-template-columns:1fr; gap:40px;}
  .grid-3{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .split{grid-template-columns:1fr; gap:36px;}
  .split.reverse .split-media{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr; gap:32px;}
  .contact-grid{grid-template-columns:1fr;}
  .territory{grid-template-columns:1fr; gap:6px;}
  .cta-band{flex-direction:column; text-align:center; padding:44px 30px;}
}
@media (max-width: 720px){
  nav.main-nav{position:fixed; inset:78px 0 0 0; background:var(--paper); flex-direction:column; align-items:stretch; padding:20px; display:none; gap:6px; border-top:1px solid var(--line);}
  nav.main-nav.open{display:flex;}
  nav.main-nav a{padding:14px 16px; font-size:1rem;}
  .nav-toggle{display:flex; align-items:center; justify-content:center; width:42px; height:42px; border-radius:2px; border:1px solid var(--line); background:var(--white); cursor:pointer;}
  .header-cta{display:none;}
  .stats{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .site-header .wrap{height:66px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important;}
}