/* ==========================================================================
   DESIGN TOKENS
   Palette presa dal logo (ciano elettrico) + ink scuro da officina elettronica
   + ambra "scintilla di saldatura" come accento raro.
   ========================================================================== */
:root{
  --cyan: #14C5EA;
  --cyan-dim: #0EA6C9;
  --cyan-soft: #EAF7FB;
  --ink: #12161D;
  --ink-soft: #1B212B;
  --ink-line: #2A3340;
  --amber: #FFB020;
  --slate: #5B6472;
  --slate-light: #AEB7C2;
  --cloud: #F4F7F9;
  --white: #FFFFFF;

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

  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 26px;
  --container: 1180px;
  --header-h: 78px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3{ font-family: var(--font-display); margin:0; line-height:1.12; letter-spacing:-0.01em; }
p{ margin:0; }
section{ scroll-margin-top: var(--header-h); }
.container{ width:100%; max-width: var(--container); margin:0 auto; padding:0 28px; }

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

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-dim);
}
.eyebrow::before{
  content:""; width:8px; height:8px; border-radius:50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255,176,32,.18);
}
section.on-dark .eyebrow{ color: var(--cyan); }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family: var(--font-display); font-weight:600; font-size:1rem;
  padding: 14px 26px; border-radius: 999px;
  border: 2px solid transparent;
  cursor:pointer; transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn-primary{ background: var(--cyan); color: var(--ink); }
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 24px rgba(20,197,234,.35); }
.btn-outline{ border-color: rgba(255,255,255,.35); color: var(--white); }
.btn-outline:hover{ border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }
.btn-small{ padding: 10px 18px; font-size: .88rem; }

/* ==========================================================================
   CIRCUIT DIVIDER — elemento firma: una traccia da circuito stampato
   che collega ogni sezione, a richiamo delle saldature di precisione.
   ========================================================================== */
.circuit-divider{
  position: relative;
  height: 2px;
  max-width: var(--container);
  margin: 0 auto;
  background: repeating-linear-gradient(90deg, currentColor 0 22px, transparent 22px 38px);
  color: var(--cyan);
  opacity: .45;
}
.circuit-divider::before,.circuit-divider::after{
  content:""; position:absolute; top:50%; width:7px; height:7px; border-radius:50%;
  background: currentColor; transform: translateY(-50%);
}
.circuit-divider::before{ left:12%; }
.circuit-divider::after{ left:84%; }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position: fixed; top:0; left:0; right:0; z-index: 100;
  height: var(--header-h);
  display:flex; align-items:center;
  background: rgba(18,22,29,0.0);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background: rgba(18,22,29,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ink-line);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; gap:20px; }

.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ width:42px; height:42px; border-radius:50%; }
.brand-name{ font-family: var(--font-display); font-weight:700; font-size:1.05rem; color:var(--white); }
.brand-name span{ display:block; font-family: var(--font-mono); font-weight:400; font-size:.68rem; letter-spacing:.1em; color: var(--cyan); text-transform:uppercase; }

.main-nav{ display:flex; align-items:center; gap:34px; }
.main-nav a{
  font-family: var(--font-mono); font-size:.85rem; letter-spacing:.04em;
  color: var(--slate-light); position:relative; padding: 6px 0;
  transition: color .2s var(--ease);
}
.main-nav a::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:0;
  background: var(--cyan); transition: width .25s var(--ease);
}
.main-nav a:hover{ color: var(--white); }
.main-nav a:hover::after{ width:100%; }

.header-actions{ display:flex; align-items:center; gap:18px; }

.menu-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:42px; height:42px; border-radius:50%; border:1px solid var(--ink-line);
  background: transparent; cursor:pointer;
}
.menu-toggle span{ width:18px; height:2px; background: var(--white); margin:0 auto; transition: transform .25s var(--ease), opacity .25s var(--ease); }
.menu-toggle.is-active span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2){ opacity:1; }
.menu-toggle.is-active span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position: relative; overflow:hidden;
  background: var(--ink);
  padding: calc(var(--header-h) + 86px) 0 96px;
  color: var(--white);
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(20,197,234,.16) 1px, transparent 1.6px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 88%);
  pointer-events:none;
}
.hero-grid{
  position:relative; z-index:1;
  display:grid; grid-template-columns: 1.15fr .85fr; gap:48px; align-items:center;
}
.hero h1{ font-size: clamp(2.4rem, 5vw, 3.6rem); }
.hero h1 em{ font-style:normal; color: var(--cyan); }
.hero-sub{ margin-top:22px; max-width: 46ch; color: var(--slate-light); font-size:1.08rem; }
.hero-ctas{ display:flex; flex-wrap:wrap; gap:16px; margin-top:34px; }
.hero-facts{ display:flex; flex-wrap:wrap; gap: 22px 30px; margin-top:46px; }
.hero-facts li{
  display:flex; align-items:center; gap:9px;
  font-family: var(--font-mono); font-size:.78rem; letter-spacing:.06em; text-transform:uppercase;
  color: var(--slate-light);
}
.hero-facts li::before{ content:""; width:6px; height:6px; border-radius:50%; background: var(--amber); }

.hero-art{ position:relative; display:flex; align-items:center; justify-content:center; }
.hero-art::before{
  content:""; position:absolute; width:340px; height:340px; border-radius:50%;
  background: radial-gradient(circle, rgba(20,197,234,.30), transparent 70%);
  filter: blur(4px);
}
.hero-art img{
  position:relative; width:min(360px, 80%);
  animation: float 5s ease-in-out infinite;
  filter: drop-shadow(0 30px 50px rgba(0,0,0,.45));
}
@keyframes float{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-16px);} }

/* ==========================================================================
   SEZIONE GENERICA
   ========================================================================== */
.section{ padding: 96px 0; }
.section.on-dark{ background: var(--ink); color: var(--white); }
.section.on-light{ background: var(--cloud); }
.section-head{ max-width: 640px; margin-bottom: 56px; }
.section-head h2{ font-size: clamp(1.9rem, 3.4vw, 2.6rem); margin-top:14px; }
.section.on-light p{ color: var(--slate); }
.section.on-dark p{ color: var(--slate-light); }

/* reveal on scroll */
.reveal{ opacity:1; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform: translateY(0); }

/* ==========================================================================
   CHI SIAMO
   ========================================================================== */
.about-grid{ display:grid; grid-template-columns: 1.15fr .85fr; gap:56px; align-items:start; }
.about-grid p + p{ margin-top:16px; }
.about-grid p{ color: var(--slate); max-width: 56ch; }

.fact-card{
  background: var(--white); border-radius: var(--radius-l);
  padding: 34px; box-shadow: 0 18px 40px -22px rgba(18,22,29,.25);
  border: 1px solid #E7ECEF;
}
.fact-card h3{
  font-family: var(--font-mono); font-size:.78rem; letter-spacing:.1em; text-transform:uppercase;
  color: var(--slate); margin-bottom:22px;
}
.fact-list li{ display:flex; gap:14px; padding:14px 0; border-top:1px solid #ECEFF1; }
.fact-list li:first-child{ border-top:none; padding-top:0; }
.fact-list .tag{
  flex:none; width:34px; height:34px; border-radius:50%;
  background: var(--cyan-soft); color: var(--cyan-dim);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-mono); font-size:.74rem; font-weight:700;
}
.fact-list strong{ display:block; font-size:.96rem; }
.fact-list span{ font-size:.88rem; color: var(--slate); }

/* ==========================================================================
   SERVIZI
   ========================================================================== */
.services-grid{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(252px, 1fr));
  gap: 26px;
}
.service-card{
  background: var(--ink-soft); border:1px solid var(--ink-line); border-radius: var(--radius-l);
  overflow:hidden; transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.service-card:hover{ transform: translateY(-6px); border-color: var(--cyan-dim); box-shadow: 0 22px 44px -22px rgba(20,197,234,.35); }
.service-figure{ aspect-ratio: 4/3; background: var(--cyan); }
.service-figure img{ width:100%; height:100%; object-fit:cover; }
.service-body{ padding: 22px 24px 26px; }
.service-body h3{ font-size:1.08rem; margin-bottom:8px; }
.service-caption{ font-size:.92rem; color: var(--slate-light); }
figcaption.service-caption{ font-style: italic; }

/* ==========================================================================
   CONTATTI
   ========================================================================== */
.contact-intro{ max-width: 620px; margin: 0 auto 50px; text-align:center; }
.contact-intro .eyebrow{ justify-content:center; }
.contact-intro h2{ margin-top:14px; }
.contact-grid{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}
.contact-card{
  display:flex; align-items:center; gap:16px;
  background: var(--white); border:1px solid #E7ECEF; border-radius: var(--radius-m);
  padding: 20px 22px; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.contact-card:hover{ transform: translateY(-4px); box-shadow: 0 16px 32px -20px rgba(18,22,29,.3); border-color: var(--cyan); }
.contact-icon{
  flex:none; width:46px; height:46px; border-radius:50%;
  background: var(--ink); color: var(--cyan);
  display:flex; align-items:center; justify-content:center;
}
.contact-icon svg{ width:22px; height:22px; }
.contact-card strong{ display:block; font-size:.98rem; }
.contact-card span{ font-size:.84rem; color: var(--slate); font-family: var(--font-mono); }

.contact-card--hours{
  grid-column: span 2;
  align-items: flex-start;
}
.hours-content{ width:100%; }
.hours-list{ margin-top:10px; display:flex; flex-direction:column; gap:6px; }
.hours-list li{
  display:flex; justify-content:space-between; gap:16px;
  font-family: var(--font-mono); font-size:.84rem; color: var(--slate);
}
.hours-list li span:first-child{ color: var(--ink); font-weight:500; }
@media (max-width: 540px){
  .contact-card--hours{ grid-column: span 1; }
}

.cta-banner{
  margin-top: 64px; background: var(--ink); border-radius: var(--radius-l);
  padding: 48px; display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:24px;
  color: var(--white); position:relative; overflow:hidden;
}
.cta-banner::before{
  content:""; position:absolute; right:-60px; top:-60px; width:220px; height:220px; border-radius:50%;
  background: radial-gradient(circle, rgba(20,197,234,.35), transparent 70%);
}
.cta-banner h3{ font-size:1.5rem; max-width:30ch; position:relative; }
.cta-banner .btn{ position:relative; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background: var(--ink); color: var(--slate-light); padding: 56px 0 26px; }
.footer-top{ display:flex; flex-wrap:wrap; justify-content:space-between; gap:32px; padding-bottom:34px; }
.footer-brand{ display:flex; gap:12px; align-items:center; max-width:320px; }
.footer-brand img{ width:46px; height:46px; border-radius:50%; }
.footer-brand strong{ color:var(--white); font-family:var(--font-display); }
.footer-brand p{ font-size:.86rem; margin-top:4px; }
.footer-nav{ display:flex; gap:28px; }
.footer-nav a{ font-family: var(--font-mono); font-size:.82rem; color: var(--slate-light); transition: color .2s; }
.footer-nav a:hover{ color: var(--cyan); }
.footer-social{ display:flex; gap:12px; }
.footer-social a{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--ink-line);
  display:flex; align-items:center; justify-content:center; transition: border-color .2s, color .2s, transform .2s;
}
.footer-social a:hover{ border-color: var(--cyan); color: var(--cyan); transform: translateY(-3px); }
.footer-social svg{ width:17px; height:17px; }
.footer-bottom{
  border-top:1px solid var(--ink-line); padding-top:22px;
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:10px;
  font-size:.78rem; font-family: var(--font-mono);
}

/* ==========================================================================
   MOBILE
   ========================================================================== */
@media (max-width: 920px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-art{ order:-1; }
  .hero-art img{ width:220px; }
  .about-grid{ grid-template-columns:1fr; }
}

@media (max-width: 760px){
  .menu-toggle{ display:flex; }
  .main-nav{
    position:fixed; inset: var(--header-h) 0 0 0;
    background: var(--ink); flex-direction:column; justify-content:center; gap:30px;
    transform: translateX(100%); transition: transform .35s var(--ease);
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav a{ font-size:1.1rem; }
  .header-actions .btn-small{ display:none; }
  .hero{ padding-top: calc(var(--header-h) + 56px); }
  .section{ padding: 70px 0; }
  .cta-banner{ flex-direction:column; align-items:flex-start; }
}