/* =====================================================================
   Rossi Coibentazioni S.r.l.s. — Industrial / Premium B2B
   ===================================================================== */

/* ---------- Fonts (self-hosted, no CDN) ---------- */
@font-face { font-family:'Inter'; src:url('../fonts/inter-400.woff2') format('woff2'); font-weight:400; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../fonts/inter-500.woff2') format('woff2'); font-weight:500; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../fonts/inter-600.woff2') format('woff2'); font-weight:600; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../fonts/inter-700.woff2') format('woff2'); font-weight:700; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../fonts/inter-800.woff2') format('woff2'); font-weight:800; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../fonts/inter-900.woff2') format('woff2'); font-weight:900; font-style:normal; font-display:swap; }

/* ---------- Tokens ---------- */
:root {
  --steel-900: #1a1a2e;
  --steel-800: #16213e;
  --steel-700: #1f2a4a;
  --steel-600: #28365c;
  --accent:    #e8a045;
  --accent-600:#d4892e;
  --paper:     #ffffff;
  --paper-2:   #f4f6f9;
  --paper-3:   #e9edf2;
  --ink:       #1c2230;
  --ink-soft:  #4a5366;
  --line:      #dce1e8;
  --line-dark: rgba(255,255,255,.12);

  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --maxw: 1240px;
  --gut: clamp(18px, 4vw, 48px);
  --ease: cubic-bezier(.22,1,.36,1);
  --radius: 8px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
/* Lenis: lo smooth scroll è gestito via JS; niente scroll-behavior CSS che entrerebbe in conflitto */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
/* NB: niente `overflow: clip` su html quando Lenis è fermo —
   creerebbe un containing block che rompe i position:fixed (menu mobile). */
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.1; letter-spacing: -.02em; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 26px; border-radius: 100px;
  font-weight: 700; font-size: .95rem; letter-spacing: .01em;
  border: 2px solid transparent; transition: transform .25s var(--ease), background .25s, color .25s, border-color .25s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--accent); color: var(--steel-900); }
.btn--primary:hover { background: var(--accent-600); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn--ghost-dark { background: transparent; color: #fff; border-color: rgba(255,255,255,.3); }
.btn--dark { background: var(--steel-900); color: #fff; }
.btn--dark:hover { background: var(--steel-800); }
.btn--small { padding: 10px 18px; font-size: .85rem; }

/* ---------- Helpers ---------- */
.kicker {
  display: inline-block; font-size: .78rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 16px;
}
.kicker--dark { color: var(--steel-900); }
.section { padding: clamp(64px, 9vw, 130px) 0; }
.section--dark { background: var(--steel-800); color: #fff; }
.section--dark .section__lead { color: rgba(255,255,255,.7); }
.section--accent { background: var(--accent); color: var(--steel-900); }
.section__title { font-weight: 800; font-size: clamp(1.9rem, 4vw, 3.1rem); }
.section__head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 64px); }
.section__lead { font-size: clamp(1rem, 1.4vw, 1.2rem); color: var(--ink-soft); margin: 18px 0 0; }

/* reveal animation base (JS adds .is-in) */
[data-reveal] { opacity: 0; transform: translateY(28px); }
.no-motion [data-reveal], .is-in[data-reveal], [data-reveal].is-in { opacity: 1; transform: none; }

/* =====================================================================
   NAV
   ===================================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px var(--gut);
  background: rgba(26,26,46,0);
  transition: background .4s var(--ease), padding .4s var(--ease), box-shadow .4s;
}
.nav.is-scrolled {
  background: rgba(22,33,62,.96);
  padding-top: 10px; padding-bottom: 10px;
  box-shadow: 0 6px 30px rgba(0,0,0,.25);
  backdrop-filter: blur(8px);
}
.nav__brand img { height: 62px; width: auto; transition: height .4s var(--ease); }
.nav.is-scrolled .nav__brand img { height: 52px; }
.nav__menu { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav__menu a {
  color: rgba(255,255,255,.86); font-weight: 600; font-size: .95rem;
  position: relative; padding: 6px 2px; transition: color .25s;
}
.nav__menu a:not(.nav__cta)::after {
  content: ''; position: absolute; left: 0; bottom: -2px; height: 2px; width: 100%;
  background: var(--accent); transform: scaleX(0); transform-origin: right; transition: transform .3s var(--ease);
}
.nav__menu a:not(.nav__cta):hover { color: #fff; }
.nav__menu a:not(.nav__cta):hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta {
  background: var(--accent); color: var(--steel-900) !important;
  padding: 9px 20px !important; border-radius: 100px; font-weight: 700;
  transition: background .25s, transform .25s;
}
.nav__cta:hover { background: var(--accent-600); transform: translateY(-1px); }
.nav__toggle {
  display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px;
}
.nav__toggle span { width: 26px; height: 2px; background: #fff; transition: transform .3s, opacity .3s; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================================
   HERO
   ===================================================================== */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  padding: 120px var(--gut) 80px;
  color: #fff; overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('../img/gallery/catalizzatore.jpg') center/cover no-repeat;
  transform: scale(1.08); filter: saturate(.85);
}
.hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(115deg, rgba(26,26,46,.95) 0%, rgba(22,33,62,.85) 45%, rgba(22,33,62,.55) 100%),
    linear-gradient(to top, rgba(26,26,46,.9), transparent 40%);
}
.hero__inner { position: relative; z-index: 2; max-width: 880px; width: 100%; margin: 0 auto; }
.hero__eyebrow {
  font-weight: 700; font-size: .85rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 18px;
}
.hero__title {
  font-weight: 900; font-size: clamp(2.6rem, 7vw, 5.4rem); line-height: 1.02;
}
.hero__title span { display: block; }
.hero__title--accent { color: var(--accent); }
.hero__sub {
  margin: clamp(20px, 3vw, 30px) 0 0; max-width: 56ch;
  font-size: clamp(1.02rem, 1.5vw, 1.25rem); color: rgba(255,255,255,.82);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: clamp(28px, 4vw, 40px); }
.hero__scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 2;
  width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.4); border-radius: 100px;
  display: grid; place-items: start center; padding-top: 7px;
}
.hero__scroll span { width: 4px; height: 8px; background: var(--accent); border-radius: 2px; animation: scrolldot 1.6s infinite; }
@keyframes scrolldot { 0%{ transform: translateY(0); opacity: 1;} 70%{ transform: translateY(14px); opacity: 0;} 100%{opacity:0;} }

/* =====================================================================
   STATS
   ===================================================================== */
.stats { background: var(--steel-900); color: #fff; padding: clamp(40px, 6vw, 64px) 0; }
.stats__grid {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.stat { text-align: center; }
.stat__num {
  display: block; font-weight: 900; font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  color: var(--accent); line-height: 1; font-variant-numeric: tabular-nums;
}
.stat__label { display: block; margin-top: 10px; font-size: .9rem; color: rgba(255,255,255,.7); }

/* =====================================================================
   AZIENDA
   ===================================================================== */
.azienda__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.azienda__text p { color: var(--ink-soft); margin: 0 0 1.1em; font-size: 1.05rem; }
.azienda__text strong { color: var(--ink); }
.azienda__points { margin-top: 26px; display: grid; gap: 14px; }
.azienda__points li {
  position: relative; padding-left: 34px; color: var(--ink-soft); font-size: 1rem;
}
.azienda__points li::before {
  content: ''; position: absolute; left: 0; top: 7px; width: 18px; height: 18px;
  background: var(--accent); border-radius: 50%;
  box-shadow: inset 0 0 0 4px var(--paper), 0 0 0 1px var(--accent);
}
.azienda__points strong { color: var(--ink); }
.azienda__map { margin: 0; }
.azienda__map img {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: 0 24px 50px rgba(26,26,46,.12);
}
.azienda__map figcaption { margin-top: 12px; font-size: .85rem; color: var(--ink-soft); text-align: center; }

/* =====================================================================
   PRODOTTI
   ===================================================================== */
.prodotti__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 64px); align-items: center; }
.prodotti__media { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: 0 30px 60px rgba(0,0,0,.4); }
.prodotti__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.prodotti__specs h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 20px; color: #fff; }
.specs { margin: 0; }
.specs__row {
  display: grid; grid-template-columns: 150px 1fr; gap: 16px;
  padding: 16px 0; border-top: 1px solid var(--line-dark);
}
.specs__row dt { font-weight: 700; color: var(--accent); font-size: .9rem; letter-spacing: .02em; }
.specs__row dd { margin: 0; color: rgba(255,255,255,.82); }
.specs__row strong { color: #fff; }
.prodotti__specs .btn { margin-top: 28px; }

/* dettaglio prodotto: composizione, fissaggi, cta */
.prodotti__detail {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 24px);
  margin-top: clamp(36px, 5vw, 56px);
}
.prodotti__card {
  background: var(--steel-700); border: 1px solid var(--line-dark);
  border-radius: var(--radius); padding: clamp(22px, 3vw, 30px);
}
.prodotti__card h4 { color: var(--accent); font-size: 1.1rem; margin-bottom: 12px; }
.prodotti__card p { color: rgba(255,255,255,.78); margin: 0; font-size: .98rem; }
.prodotti__card strong { color: #fff; }
.prodotti__fix { display: grid; gap: 10px; }
.prodotti__fix li {
  position: relative; padding-left: 22px; color: rgba(255,255,255,.78); font-size: .95rem;
}
.prodotti__fix li::before {
  content: ''; position: absolute; left: 0; top: 9px; width: 8px; height: 8px;
  background: var(--accent); border-radius: 2px;
}
.prodotti__card--cta { background: var(--accent); }
.prodotti__card--cta h4, .prodotti__card--cta p { color: var(--steel-900); }
.prodotti__card--cta p { opacity: .85; }
.prodotti__card--cta .btn { margin-top: 18px; background: var(--steel-900); color: #fff; }
.prodotti__card--cta .btn:hover { background: var(--steel-800); }

/* termografia: strumentazione */
.termografia__cam {
  margin: 4px 0 26px; font-size: .95rem; color: rgba(26,26,46,.85);
  padding: 10px 16px; background: rgba(26,26,46,.08); border-radius: 6px; display: inline-block;
}
.termografia__cam strong { color: var(--steel-900); }

/* =====================================================================
   SETTORI
   ===================================================================== */
.settori { background: var(--paper-2); }
.settori__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.settori__grid li {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; font-weight: 600; color: var(--ink);
  display: flex; align-items: center; gap: 12px;
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.settori__grid li::before {
  content: ''; width: 10px; height: 10px; flex: none;
  background: var(--accent); border-radius: 50%;
}
.settori__grid li:hover { border-color: var(--accent); transform: translateX(4px); box-shadow: 0 10px 26px rgba(26,26,46,.08); }

/* =====================================================================
   VANTAGGI
   ===================================================================== */
.vantaggi { background: var(--paper-2); }
.vantaggi__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 26px); }
.vantaggio {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(24px, 3vw, 36px);
  transition: transform .35s var(--ease), box-shadow .35s, border-color .35s;
}
.vantaggio:hover { transform: translateY(-6px); box-shadow: 0 24px 50px rgba(26,26,46,.12); border-color: var(--accent); }
.vantaggio__icon {
  display: grid; place-items: center; width: 60px; height: 60px; border-radius: 14px;
  background: var(--steel-800); color: var(--accent); margin-bottom: 20px;
}
.vantaggio__icon svg { width: 30px; height: 30px; }
.vantaggio h3 { font-size: 1.22rem; font-weight: 700; margin-bottom: 10px; }
.vantaggio p { color: var(--ink-soft); margin: 0; font-size: .98rem; }

/* =====================================================================
   TERMOGRAFIA
   ===================================================================== */
.termografia__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 70px); align-items: center; }
.termografia__text p { font-size: 1.08rem; margin: 0 0 1em; color: rgba(26,26,46,.85); }
.termografia__text strong { color: var(--steel-900); }
.termografia__list { margin: 22px 0 30px; display: grid; gap: 12px; }
.termografia__list li { position: relative; padding-left: 30px; font-weight: 500; }
.termografia__list li::before {
  content: ''; position: absolute; left: 0; top: 9px; width: 14px; height: 14px;
  border: 3px solid var(--steel-900); border-radius: 50%;
}
.termografia__visual { aspect-ratio: 4/3; border-radius: var(--radius); overflow: hidden; position: relative; }
.thermo {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 35% 40%, #ff3b30 0%, #ff9500 16%, #ffcc00 30%, #34c759 48%, #0a84ff 68%, #1a1a2e 100%);
  display: grid; place-items: center;
}
.thermo__scan {
  position: absolute; left: 0; right: 0; height: 3px;
  background: rgba(255,255,255,.85); box-shadow: 0 0 14px rgba(255,255,255,.9);
  top: 0; animation: thermoscan 3.4s var(--ease) infinite;
}
@keyframes thermoscan { 0%{ top: 6%; } 50%{ top: 94%; } 100%{ top: 6%; } }
.thermo__label {
  font-weight: 800; letter-spacing: .3em; font-size: .8rem; color: rgba(255,255,255,.92);
  background: rgba(0,0,0,.3); padding: 8px 14px; border-radius: 6px;
}

/* =====================================================================
   GALLERIA
   ===================================================================== */
.galleria__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  grid-auto-flow: dense;
}
.galleria__item {
  position: relative; margin: 0; border-radius: var(--radius); overflow: hidden;
  cursor: pointer; background: var(--steel-700); aspect-ratio: 1/1;
}
.galleria__item--wide { grid-column: span 2; }
.galleria__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease), filter .4s;
}
.galleria__item:hover img { transform: scale(1.07); }
.galleria__item::after {
  content: '+'; position: absolute; right: 12px; bottom: 8px;
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: var(--steel-900); font-weight: 700; font-size: 1.3rem;
  opacity: 0; transform: scale(.6); transition: opacity .3s, transform .3s var(--ease);
}
.galleria__item:hover::after { opacity: 1; transform: scale(1); }

/* =====================================================================
   CONTATTI
   ===================================================================== */
.contatti__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: start; }
.contatti__info p { color: var(--ink-soft); font-size: 1.05rem; max-width: 42ch; }
.contatti__list { margin-top: 28px; display: grid; gap: 4px; }
.contatti__list li {
  display: grid; grid-template-columns: 110px 1fr; gap: 14px; align-items: baseline;
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.contatti__lbl { font-weight: 700; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-600); }
.contatti__list a { color: var(--ink); border-bottom: 1px solid transparent; transition: border-color .3s, color .3s; }
.contatti__list a:hover { color: var(--accent-600); border-color: var(--accent-600); }

.form { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px, 3vw, 38px); }
.form__row { margin-bottom: 16px; }
.form__row label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 6px; color: var(--ink); }
.form input, .form textarea {
  width: 100%; padding: 12px 14px; font: inherit; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 6px; transition: border-color .25s, box-shadow .25s;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,160,69,.18); }
.form textarea { resize: vertical; min-height: 110px; }
.form__check { display: flex; gap: 10px; align-items: flex-start; font-size: .88rem; color: var(--ink-soft); margin: 4px 0 18px; }
.form__check input { width: auto; margin-top: 3px; flex: none; }
.form__check a { color: var(--accent-600); text-decoration: underline; font-weight: 600; }
.form__check a:hover { color: var(--ink); }
.form__submit { width: 100%; }
.form__feedback { margin: 14px 0 0; font-size: .9rem; font-weight: 600; min-height: 1.2em; }
.form__feedback.is-ok { color: #1c7c34; }
.form__feedback.is-err { color: #c0392b; }
.form input.is-invalid, .form textarea.is-invalid { border-color: #c0392b; }

.contatti__map { margin-top: clamp(40px, 6vw, 70px); }
.contatti__map { position: relative; }
.contatti__map iframe {
  width: 100%; height: clamp(280px, 38vw, 420px); border: 0;
  border-top: 4px solid var(--accent); filter: grayscale(.2); display: block;
}
.contatti__maplink {
  position: absolute; right: 14px; bottom: 14px; z-index: 3;
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--steel-900); color: #fff;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
  transition: background .25s, color .25s, transform .25s var(--ease);
}
.contatti__maplink svg { width: 20px; height: 20px; }
.contatti__maplink:hover { background: var(--accent); color: var(--steel-900); transform: scale(1.08); }

/* overlay che blocca lo zoom-con-rotella della mappa durante lo scroll.
   Trasparente e silenzioso: un click lo disattiva per interagire. */
.contatti__mapguard {
  position: absolute; inset: 4px 0 0 0; z-index: 2;
  background: transparent; cursor: pointer;
}
/* quando la mappa è attivata, l'overlay sparisce e si può interagire */
.contatti__map.is-active .contatti__mapguard { display: none; }

/* =====================================================================
   FOOTER
   ===================================================================== */
.footer { background: var(--steel-900); color: rgba(255,255,255,.7); padding-top: clamp(50px, 7vw, 80px); }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1.4fr; gap: 40px; padding-bottom: 40px; }
.footer__brand img { height: 58px; width: auto; margin-bottom: 16px; }
.footer__brand p { max-width: 36ch; font-size: .95rem; margin: 0; }
.footer__col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer__col a, .footer__col span { display: block; font-size: .92rem; margin-bottom: 8px; color: rgba(255,255,255,.7); transition: color .25s; }
.footer__col a:hover { color: var(--accent); }
.footer__company { color: #fff !important; font-weight: 700; font-size: .98rem !important; margin-bottom: 10px !important; }
.footer__bar {
  border-top: 1px solid var(--line-dark);
  padding: 20px var(--gut); display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: space-between; align-items: center;
  font-size: .82rem; max-width: var(--maxw); margin: 0 auto;
}
.footer__privacy { color: rgba(255,255,255,.55); text-decoration: underline; font-size: .82rem; }
.footer__privacy:hover { color: var(--accent); }

/* =====================================================================
   RETURN TO TOP
   ===================================================================== */
.totop {
  position: fixed; right: clamp(16px, 3vw, 28px); bottom: clamp(16px, 3vw, 28px); z-index: 150;
  width: 50px; height: 50px; border-radius: 50%;
  background: var(--accent); color: var(--steel-900); border: 0;
  display: grid; place-items: center;
  box-shadow: 0 10px 30px rgba(26,26,46,.35);
  opacity: 0; transform: translateY(16px) scale(.85);
  transition: opacity .35s var(--ease), transform .35s var(--ease), background .25s;
}
.totop svg { width: 22px; height: 22px; }
.totop.is-visible { opacity: 1; transform: translateY(0) scale(1); }
.totop:hover { background: var(--accent-600); transform: translateY(-3px) scale(1); }

/* =====================================================================
   LIGHTBOX
   ===================================================================== */
.lightbox {
  position: fixed; inset: 0; z-index: 300; background: rgba(15,16,28,.94);
  display: flex; align-items: center; justify-content: center; padding: 5vw;
  opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox__img { max-width: 90vw; max-height: 82vh; border-radius: 4px; box-shadow: 0 30px 80px rgba(0,0,0,.6); transform: scale(.96); transition: transform .35s var(--ease); }
.lightbox.is-open .lightbox__img { transform: scale(1); }
.lightbox__close {
  position: absolute; top: 18px; right: 22px; width: 48px; height: 48px;
  background: none; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; color: #fff;
  font-size: 1.8rem; line-height: 1; transition: background .25s, transform .25s;
}
.lightbox__close:hover { background: var(--accent); color: var(--steel-900); transform: rotate(90deg); }
.lightbox__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%; color: #fff; font-size: 1.8rem; transition: background .25s;
}
.lightbox__nav:hover { background: var(--accent); color: var(--steel-900); }
.lightbox__prev { left: 18px; }
.lightbox__next { right: 18px; }

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 980px) {
  .azienda__grid, .prodotti__grid, .termografia__grid, .contatti__grid { grid-template-columns: 1fr; }
  .vantaggi__grid { grid-template-columns: repeat(2, 1fr); }
  .galleria__grid { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 32px 24px; }
  .prodotti__media { order: -1; }
  .prodotti__detail { grid-template-columns: 1fr; }
  .settori__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  /* il toggle resta sopra al pannello */
  .nav__toggle { display: flex; z-index: 102; }

  /* pannello a tutta altezza. Uso height esplicita (100dvh) invece di
     inset:0/bottom:0: il transform di slide rende il menu il proprio
     containing block e bottom:0 collassava l'altezza dopo lo scroll. */
  .nav__menu {
    position: fixed; top: 0; left: 0; right: 0; z-index: 101;
    height: 100vh; height: 100dvh;
    flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 4px;
    background: var(--steel-900);
    padding: 92px 28px 32px;            /* spazio in alto per logo + X */
    transform: translateX(100%);
    transition: transform .42s var(--ease);
    overflow-y: auto;
    box-shadow: none;
  }
  .nav.is-open .nav__menu { transform: translateX(0); }

  .nav__menu a {
    font-size: 1.35rem; font-weight: 700; letter-spacing: -.01em;
    color: #fff; padding: 18px 4px;
    border-bottom: 1px solid var(--line-dark);
  }
  .nav__menu a::after { display: none; }   /* niente underline animato in mobile */

  /* la voce Contatti torna un link semplice, coerente con le altre */
  .nav__menu a.nav__cta {
    background: var(--accent); color: var(--steel-900) !important;
    border: 0; border-radius: 10px; text-align: center;
    margin-top: 22px; padding: 16px !important;
  }

  /* overlay scuro dietro al pannello */
  .nav::before {
    content: ''; position: fixed; inset: 0; z-index: 100;
    background: rgba(10,12,22,.55); backdrop-filter: blur(2px);
    opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s;
  }
  .nav.is-open::before { opacity: 1; visibility: visible; }

  /* quando il menu è aperto, mostra sempre lo sfondo scuro della barra */
  .nav.is-open { background: var(--steel-900); }

  /* blocca lo scroll del body */
  body.menu-open { overflow: hidden; }
}

@media (max-width: 560px) {
  .galleria__grid { grid-template-columns: repeat(2, 1fr); }
  .galleria__item--wide { grid-column: span 2; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .specs__row { grid-template-columns: 1fr; gap: 4px; }
  .contatti__list li { grid-template-columns: 1fr; gap: 2px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .vantaggi__grid { grid-template-columns: 1fr; }
  .settori__grid { grid-template-columns: 1fr; }
}

/* Scelta di progetto: le animazioni decorative sono sempre attive, anche con
   "riduci movimento" di sistema. Nessun blocco @media (prefers-reduced-motion). */

/* =====================================================================
   PAGINE LEGALI (privacy)
   ===================================================================== */
.legal {
  /* la nav è fixed: lascia spazio in alto */
  padding: calc(90px + clamp(30px, 5vw, 60px)) 0 clamp(50px, 7vw, 90px);
  background: var(--paper);
}
.legal__wrap { max-width: 860px; }
.legal__title { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 6px 0 18px; }
.legal__lead { color: var(--ink-soft); font-size: 1.05rem; max-width: 68ch; }

.legal__toc {
  display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center;
  margin: 28px 0 8px; padding: 16px 20px;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
}
.legal__toc-label { font-weight: 700; font-size: .85rem; color: var(--ink); margin-right: 4px; }
.legal__toc a { color: var(--accent-600); font-weight: 600; text-decoration: underline; }
.legal__toc a:hover { color: var(--ink); }

.legal__section { padding: 34px 0; border-top: 1px solid var(--line); scroll-margin-top: 90px; }
.legal__section h2 {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin-bottom: 14px; color: var(--steel-800);
}
.legal__section h3 {
  font-size: 1.02rem; margin: 22px 0 6px; color: var(--ink); font-weight: 700;
}
.legal__section p { color: var(--ink-soft); margin: 0 0 12px; }
.legal__section ul { margin: 0 0 12px; padding-left: 20px; list-style: disc; color: var(--ink-soft); }
.legal__section li { margin-bottom: 4px; }

.legal__back { margin-top: 34px; }
.legal__back a { color: var(--accent-600); font-weight: 600; }
.legal__back a:hover { color: var(--ink); }