/* ============ TOKENS ============ */
:root{
  --ink:#0A1929;
  --surface:#0F2A42;
  --surface-2:#153854;
  --line:#24506F;
  --line-soft:rgba(62,146,204,0.14);
  --blueprint:#3E92CC;
  --blueprint-dim:#2E6E9E;
  --ember:#E8A33D;
  --ember-dim:#C4842A;
  --text:#EAF1F6;
  --text-muted:#93AEC2;
  --text-dim:#5D7A90;

  /* accent-per-category system: each service area gets its own hue */
  --cat-edilizia:#3E92CC;
  --cat-edilizia-soft:rgba(62,146,204,0.18);
  --cat-energia:#E8A33D;
  --cat-energia-soft:rgba(232,163,61,0.18);
  --cat-sicurezza:#E4572E;
  --cat-sicurezza-soft:rgba(228,87,46,0.18);
  --cat-acustica:#3FA796;
  --cat-acustica-soft:rgba(63,167,150,0.18);

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'IBM Plex Sans', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --max-w:1180px;
}

/* accent utilities — apply to a card to color its icon, tag and top edge */
.accent-edilizia{ --accent:var(--cat-edilizia); --accent-soft:var(--cat-edilizia-soft); }
.accent-energia{ --accent:var(--cat-energia); --accent-soft:var(--cat-energia-soft); }
.accent-sicurezza{ --accent:var(--cat-sicurezza); --accent-soft:var(--cat-sicurezza-soft); }
.accent-acustica{ --accent:var(--cat-acustica); --accent-soft:var(--cat-acustica-soft); }

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important;}
}

:focus-visible{outline:2px solid var(--ember); outline-offset:3px;}

.wrap{max-width:var(--max-w); margin:0 auto; padding:0 28px;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--blueprint);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background:var(--blueprint);
  display:inline-block;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:-0.01em;
  color:var(--text);
}

.section-title{
  font-size:clamp(1.7rem, 3vw, 2.5rem);
  margin:14px 0 18px;
  max-width:680px;
}
.section-lede{
  color:var(--text-muted);
  font-size:1.02rem;
  max-width:560px;
  margin-bottom:0;
}

section{padding:96px 0;}
@media (max-width:720px){ section{padding:64px 0;} }

.grid-bg{
  position:relative;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:48px 48px;
  background-position:center top;
}

/* ============ HEADER ============ */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,25,41,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.nav{
  max-width:var(--max-w); margin:0 auto; padding:0 28px;
  height:74px;
  display:flex; align-items:center; justify-content:space-between;
}
.logo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.15rem;
  letter-spacing:-0.01em;
  display:flex; align-items:center; gap:10px;
}
.logo .mark{
  width:30px; height:30px;
  border:1.5px solid var(--blueprint);
  border-radius:3px;
  display:flex; align-items:center; justify-content:center;
  color:var(--blueprint);
  font-family:var(--font-mono);
  font-size:0.75rem;
  flex-shrink:0;
}
.logo .sub{
  display:block;
  font-family:var(--font-mono);
  font-weight:400;
  font-size:0.62rem;
  letter-spacing:0.1em;
  color:var(--text-dim);
  text-transform:uppercase;
  margin-top:2px;
}
nav.links{display:flex; gap:34px; align-items:center;}
nav.links a{
  font-size:0.92rem;
  color:var(--text-muted);
  transition:color .15s ease;
  position:relative;
}
nav.links a:hover{color:var(--text);}
nav.links a.active{color:var(--text);}
nav.links a.active::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-22px;
  height:2px; background:var(--ember);
}
.nav-cta{
  font-family:var(--font-mono);
  font-size:0.8rem;
  color:var(--ink) !important;
  background:var(--ember);
  padding:9px 18px;
  border-radius:3px;
  transition:background .15s ease;
}
.nav-cta:hover{background:var(--ember-dim);}
.burger{display:none; background:none; border:none; color:var(--text); font-size:1.6rem; cursor:pointer;}

@media (max-width:860px){
  nav.links{
    position:fixed; top:74px; left:0; right:0;
    background:var(--surface);
    flex-direction:column;
    align-items:flex-start;
    padding:24px 28px 32px;
    gap:20px;
    border-bottom:1px solid var(--line-soft);
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:all .2s ease;
  }
  nav.links.open{transform:translateY(0); opacity:1; pointer-events:auto;}
  nav.links a.active::after{display:none;}
  .burger{display:block;}
}

/* ============ HERO (home) ============ */
.hero{
  padding:88px 0 60px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-160px; right:-120px;
  width:520px; height:520px;
  background:radial-gradient(circle, rgba(232,163,61,0.16) 0%, rgba(232,163,61,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  bottom:-200px; left:-140px;
  width:480px; height:480px;
  background:radial-gradient(circle, rgba(63,167,150,0.12) 0%, rgba(63,167,150,0) 68%);
  pointer-events:none;
}
.hero .wrap{position:relative; z-index:1;}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:50px;
  align-items:center;
}
@media (max-width:920px){ .hero-grid{grid-template-columns:1fr; gap:56px;} }

.hero h1{
  font-size:clamp(2.2rem, 4.4vw, 3.4rem);
  line-height:1.12;
  margin:18px 0 20px;
}
.hero h1 em{
  font-style:normal;
  color:var(--blueprint);
}
.hero p.lede{
  color:var(--text-muted);
  font-size:1.08rem;
  max-width:480px;
  margin-bottom:32px;
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:44px;}

.btn{
  font-family:var(--font-body);
  font-weight:500;
  font-size:0.95rem;
  padding:13px 24px;
  border-radius:3px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:all .15s ease;
  border:1px solid transparent;
  cursor:pointer;
}
.btn-primary{background:var(--ember); color:var(--ink);}
.btn-primary:hover{background:var(--ember-dim); transform:translateY(-1px);}
.btn-ghost{border-color:var(--line); color:var(--text);}
.btn-ghost:hover{border-color:var(--blueprint); color:var(--blueprint);}

.hero-stats{
  display:flex; gap:36px;
  font-family:var(--font-mono);
  flex-wrap:wrap;
}
.hero-stats div{border-left:1px solid var(--line); padding-left:14px;}
.hero-stats strong{display:block; font-size:1.3rem; color:var(--text); font-weight:500;}
.hero-stats span{font-size:0.72rem; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em;}

.hero-diagram{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:4px;
  padding:20px;
}
.hero-diagram svg{width:100%; height:auto; display:block;}
.diagram-caption{
  display:flex; justify-content:space-between;
  font-family:var(--font-mono);
  font-size:0.68rem;
  color:var(--text-dim);
  letter-spacing:.05em;
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
}

/* ============ PAGE HERO (sottopagine) ============ */
.page-hero{
  padding:64px 0 48px;
  border-bottom:1px solid var(--line-soft);
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-140px; right:-100px;
  width:380px; height:380px;
  background:radial-gradient(circle, rgba(62,146,204,0.14) 0%, rgba(62,146,204,0) 68%);
  pointer-events:none;
}
.page-hero .wrap{position:relative; z-index:1;}
.page-hero h1{
  font-size:clamp(1.9rem, 3.6vw, 2.7rem);
  margin:14px 0 12px;
}
.page-hero p{
  color:var(--text-muted);
  max-width:600px;
  font-size:1.02rem;
}
.breadcrumb{
  font-family:var(--font-mono);
  font-size:0.72rem;
  color:var(--text-dim);
  letter-spacing:.04em;
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--blueprint);}

/* ============ TRUST BAR ============ */
.trust{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:var(--surface);
}
.trust .wrap{
  display:flex; flex-wrap:wrap; gap:14px 40px;
  padding:22px 28px;
  justify-content:center;
  font-family:var(--font-mono);
  font-size:0.76rem;
  color:var(--text-dim);
  letter-spacing:.04em;
}
.trust span{color:var(--blueprint);}
.trust a{color:var(--text-dim); display:inline-flex; align-items:center; gap:8px;}
.trust a:hover{color:var(--text);}
.trust a::before{
  content:"";
  width:7px; height:7px;
  border-radius:50%;
  background:var(--accent, var(--blueprint));
  display:inline-block;
}

/* ============ CHI SIAMO ============ */
.about-grid{
  display:grid;
  grid-template-columns:1.2fr 0.8fr;
  gap:60px;
  align-items:start;
}
@media (max-width:860px){ .about-grid{grid-template-columns:1fr;} }
.about-grid p{color:var(--text-muted); margin-bottom:16px; max-width:60ch;}
.about-grid p strong{color:var(--text); font-weight:500;}

.credentials{
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:4px;
  padding:26px;
}
.credentials h4{
  font-family:var(--font-mono);
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:.1em;
  color:var(--text-dim);
  margin-bottom:16px;
  font-weight:500;
}
.credentials li{
  display:flex; justify-content:space-between; gap:12px;
  padding:12px 0;
  border-top:1px solid var(--line-soft);
  font-size:0.88rem;
}
.credentials li:first-of-type{border-top:none;}
.credentials li .k{color:var(--text-muted);}
.credentials li .v{font-family:var(--font-mono); color:var(--blueprint); font-size:0.82rem; text-align:right;}

/* ============ SERVIZI ============ */
.services-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:2px;
  background:var(--line-soft);
  border:1px solid var(--line-soft);
  border-radius:4px;
  overflow:hidden;
  margin-top:40px;
}
@media (max-width:720px){ .services-grid{grid-template-columns:1fr;} }

.service-card{
  background:var(--ink);
  padding:36px;
  border-top:3px solid var(--accent, var(--line));
  transition:background .18s ease;
}
.service-card:hover{background:var(--surface);}
.service-top{
  display:flex; justify-content:space-between; align-items:flex-start;
  margin-bottom:20px;
}
.service-icon{
  width:44px; height:44px;
  border:1px solid var(--accent, var(--line));
  border-radius:3px;
  display:flex; align-items:center; justify-content:center;
  color:var(--accent, var(--blueprint));
  background:var(--accent-soft, transparent);
  flex-shrink:0;
}
.norm-tag{
  font-family:var(--font-mono);
  font-size:0.66rem;
  color:var(--accent, var(--ember));
  border:1px solid var(--accent-soft, rgba(232,163,61,0.35));
  padding:4px 9px;
  border-radius:20px;
  white-space:nowrap;
  letter-spacing:.02em;
}
.service-card h3{font-size:1.2rem; margin-bottom:10px;}
.service-card p{color:var(--text-muted); font-size:0.92rem; max-width:44ch;}
.service-card .more{
  display:inline-block; margin-top:14px;
  font-family:var(--font-mono); font-size:0.76rem;
  color:var(--blueprint);
}
.service-card .more:hover{color:var(--text);}

/* ============ PORTFOLIO ============ */
.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
  margin-top:40px;
}
@media (max-width:920px){ .portfolio-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:600px){ .portfolio-grid{grid-template-columns:1fr;} }

.project-card{
  border:1px solid var(--line-soft);
  border-top:3px solid var(--accent, var(--line-soft));
  border-radius:4px;
  overflow:hidden;
  background:var(--surface);
  transition:border-color .18s ease, transform .18s ease;
}
.project-card:hover{border-color:var(--blueprint-dim); transform:translateY(-3px);}

.project-thumb{
  aspect-ratio:4/3;
  background:
    repeating-linear-gradient(135deg, var(--accent-soft, var(--line-soft)) 0 2px, transparent 2px 14px),
    var(--surface-2);
  display:flex; align-items:center; justify-content:center;
  position:relative;
  border-bottom:1px solid var(--line-soft);
}
.project-thumb .cam{color:var(--accent, var(--text-dim)); opacity:0.85;}
.project-thumb .tag{
  position:absolute; top:12px; left:12px;
  font-family:var(--font-mono);
  font-size:0.62rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--accent, var(--text-dim));
  background:rgba(10,25,41,0.75);
  padding:4px 8px;
  border-radius:3px;
  border:1px solid var(--accent-soft, var(--line-soft));
}
.project-body{padding:18px 20px 22px;}
.project-body h4{font-size:1rem; margin-bottom:4px; font-weight:500;}
.project-body .loc{
  font-family:var(--font-mono);
  font-size:0.72rem;
  color:var(--text-dim);
}

.portfolio-note{
  margin-top:36px;
  display:flex; align-items:center; gap:12px;
  font-size:0.85rem;
  color:var(--text-dim);
  border-left:2px solid var(--line);
  padding-left:14px;
}

/* ============ CONTATTI ============ */
.contact-grid{
  display:grid;
  grid-template-columns:0.95fr 1.05fr;
  gap:60px;
}
@media (max-width:860px){ .contact-grid{grid-template-columns:1fr;} }

.contact-list{margin-top:28px;}
.contact-list li{
  display:flex; gap:16px; align-items:flex-start;
  padding:18px 0;
  border-top:1px solid var(--line-soft);
}
.contact-list li:first-child{border-top:none;}
.contact-list .ico{
  width:36px; height:36px;
  border:1px solid var(--line);
  border-radius:3px;
  display:flex; align-items:center; justify-content:center;
  color:var(--blueprint);
  flex-shrink:0;
}
.contact-list .k{
  font-family:var(--font-mono);
  font-size:0.68rem;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--text-dim);
  margin-bottom:3px;
}
.contact-list .v{color:var(--text); font-size:0.98rem;}
.contact-list a.v:hover{color:var(--blueprint);}

form{
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:4px;
  padding:32px;
}
.form-row{margin-bottom:18px;}
.form-row label{
  display:block;
  font-family:var(--font-mono);
  font-size:0.7rem;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--text-dim);
  margin-bottom:8px;
}
.form-row input, .form-row textarea, .form-row select{
  width:100%;
  background:var(--ink);
  border:1px solid var(--line);
  border-radius:3px;
  padding:12px 14px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:0.94rem;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus{
  border-color:var(--blueprint);
  outline:none;
}
.form-row textarea{resize:vertical; min-height:110px;}
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media (max-width:500px){ .two-col{grid-template-columns:1fr;} }
form .btn-primary{width:100%; justify-content:center; margin-top:6px;}
.form-hint{font-size:0.78rem; color:var(--text-dim); margin-top:12px; text-align:center;}

/* ============ CTA STRIP (sottopagine) ============ */
.cta-strip{
  background:
    radial-gradient(circle at 15% 30%, rgba(232,163,61,0.10) 0%, rgba(232,163,61,0) 55%),
    radial-gradient(circle at 85% 70%, rgba(62,146,204,0.10) 0%, rgba(62,146,204,0) 55%),
    var(--surface);
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  padding:56px 0;
  text-align:center;
}
.cta-strip h3{font-size:1.5rem; margin-bottom:10px;}
.cta-strip p{color:var(--text-muted); margin-bottom:24px;}

/* ============ FOOTER ============ */
footer{
  border-top:1px solid var(--line-soft);
  padding:40px 0;
}
.footer-row{
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:16px;
  font-size:0.82rem;
  color:var(--text-dim);
}
.footer-row a{color:var(--text-dim);}
.footer-row a:hover{color:var(--blueprint);}
.footer-links{display:flex; gap:22px;}