/* ============================================================
   3G Electronics — main.css
   Design system condiviso. Light-primary, celeste accento,
   antracite come interruzione. Token dal Brand Kit 3G.
   Nessuna dipendenza, nessun build.
   ============================================================ */

/* ---------- 1. Design tokens ---------- */
:root{
  /* Brand */
  --c-celeste:      #1699D5;  /* accento / CTA / icone */
  --c-celeste-text: #0E6E9E;  /* celeste come testo/link su bianco (AA) */
  --c-celeste-deep: #0C6088;  /* hover */
  --c-celeste-tint: #E6F4FB;  /* sfondi tenui */
  /* Colori categoria gallery */
  --cat-cr:         #1699D5;  /* control room */
  --cat-ds:         #E08A2B;  /* digital signage */
  --cat-ds-deep:    #A85A14;  /* digital signage (chip attiva, testo bianco AA) */
  /* Neutri */
  --c-antracite:    #16202B;  /* hero / footer */
  --c-antracite-2:  #1F2C3A;  /* card scure */
  --c-ink:          #1A2330;  /* titoli su chiaro */
  --c-body:         #3F4A57;  /* testo corrente */
  --c-muted:        #6B7682;  /* secondario / didascalie */
  --c-border:       #D4DAE0;  /* bordi su chiaro */
  --c-border-dark:  #33414F;  /* bordi su scuro */
  --c-bg-soft:      #F4F6F8;  /* sezioni chiare */
  --c-white:        #FFFFFF;
  --c-text-on-dark: #E8F0F8;  /* testo su antracite */
  --c-muted-on-dark:#9FB0C2;  /* secondario su antracite */
  /* Type */
  --f-head:'DM Sans',system-ui,sans-serif;
  --f-body:'Inter',system-ui,sans-serif;
  --f-mono:'DM Mono',ui-monospace,monospace;
  /* Spacing */
  --sp-xs:8px; --sp-sm:16px; --sp-md:24px; --sp-lg:40px; --sp-xl:64px; --sp-2xl:96px;
  /* Radius / motion / layout */
  --radius-sm:4px; --radius-md:8px; --radius-lg:14px;
  --transition:200ms ease;
  --max-w:1200px;
}

/* ---------- 2. Reset ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--f-body);
  color:var(--c-body);
  background:var(--c-white);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-celeste-text);text-decoration:none;transition:color var(--transition)}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ---------- 3. Tipografia ---------- */
h1,h2,h3,h4{font-family:var(--f-head);color:var(--c-ink);letter-spacing:-.01em;line-height:1.15}
h1{font-weight:300;font-size:clamp(2rem,4.5vw,3.25rem);letter-spacing:-.02em}
h2{font-weight:400;font-size:clamp(1.625rem,3vw,2.25rem)}
h3{font-weight:500;font-size:clamp(1.125rem,2vw,1.375rem)}
h4{font-weight:500;font-size:1rem}
h1 strong,h2 strong{font-weight:500;color:var(--c-ink)}
p{max-width:64ch}

.eyebrow{
  display:inline-block;
  font-family:var(--f-head);font-weight:600;font-size:13px;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-celeste-text);margin-bottom:var(--sp-sm);
}

/* ---------- 4. Layout ---------- */
.container{max-width:var(--max-w);margin:0 auto;padding:0 var(--sp-lg)}
.section{padding:var(--sp-2xl) 0}
.section--soft{background:var(--c-bg-soft)}
.section--dark{background:var(--c-antracite);color:var(--c-text-on-dark)}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}
.section--dark .eyebrow{color:var(--c-celeste)}
.section--dark p{color:var(--c-muted-on-dark)}
.section-header{max-width:60ch;margin-bottom:var(--sp-xl)}
.section-header--center{margin-left:auto;margin-right:auto;text-align:center}
.section-header--tight{margin-bottom:var(--sp-lg)}
.prose--center{margin-left:auto;margin-right:auto}
.section-header p{margin-top:var(--sp-sm);color:var(--c-muted)}
.section--dark .section-header p{color:var(--c-muted-on-dark)}

/* ---------- 5. Bottoni ---------- */
.btn{
  display:inline-block;font-family:var(--f-body);font-weight:500;font-size:.9375rem;
  padding:13px 28px;border-radius:var(--radius-sm);border:1px solid transparent;
  transition:var(--transition);text-align:center;
}
.btn--primary{background:var(--c-celeste);color:#fff}
.btn--primary:hover{background:var(--c-celeste-deep);color:#fff}
.btn--ghost{background:transparent;color:var(--c-celeste-text);border-color:var(--c-celeste-text)}
.btn--ghost:hover{background:var(--c-celeste-tint)}
.section--dark .btn--ghost,.btn--ghost-light{color:var(--c-text-on-dark);border-color:var(--c-border-dark)}
.section--dark .btn--ghost:hover,.btn--ghost-light:hover{border-color:var(--c-celeste);color:var(--c-celeste)}

.link-cta{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--f-head);font-weight:500;color:var(--c-celeste-text);
  transition:gap var(--transition);
}
.link-cta::after{content:"\2192";transition:transform var(--transition)}
.link-cta:hover{gap:10px}
.section--dark .link-cta{color:var(--c-celeste)}

/* ---------- 6. Utility bar + header ---------- */
.utility-bar{background:#0F1822;border-bottom:1px solid var(--c-border-dark)}
.utility-bar__inner{display:flex;justify-content:flex-end;align-items:center;height:32px}
.lang-switcher{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em}
.lang-switcher a{color:var(--c-muted-on-dark);padding:0 4px}
.lang-switcher a.active,.lang-switcher a:hover{color:var(--c-celeste)}
.lang-switcher__sep{color:var(--c-border-dark)}

.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--c-border);
  box-shadow:0 2px 12px rgba(26,35,48,.06);
}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;height:80px;gap:var(--sp-lg)}
.site-logo__img{height:42px;width:auto}
.site-nav__list{display:flex;gap:var(--sp-lg)}
.site-nav__item{position:relative}
.site-nav__trigger,.site-nav__link{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--f-head);font-weight:500;font-size:.95rem;color:var(--c-ink);
  padding:8px 0;transition:color var(--transition);
  background:none;border:none;cursor:pointer;line-height:inherit;
}
.site-nav__trigger:hover,.site-nav__link:hover,.site-nav__item:hover .site-nav__trigger{color:var(--c-celeste-text)}
.site-nav__link.is-active{color:var(--c-celeste-text);box-shadow:inset 0 -2px 0 var(--c-celeste)}
.site-nav__chevron{width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform var(--transition)}
.site-nav__item:hover .site-nav__chevron{transform:rotate(225deg) translateY(-2px)}
.site-nav__dropdown{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);
  min-width:240px;background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-md);
  box-shadow:0 8px 28px rgba(26,35,48,.12);padding:var(--sp-xs);
  opacity:0;visibility:hidden;transition:var(--transition);
}
.site-nav__item:hover .site-nav__dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.site-nav__dropdown a{display:block;padding:10px 14px;border-radius:var(--radius-sm);color:var(--c-body);font-size:.92rem}
.site-nav__dropdown a:hover{background:var(--c-celeste-tint);color:var(--c-celeste-deep)}
.site-header__actions{display:flex;align-items:center;gap:var(--sp-sm)}

.hamburger{display:none;flex-direction:column;gap:5px;padding:8px}
.hamburger__line{width:24px;height:2px;background:var(--c-ink);transition:var(--transition)}

/* ---------- 7. Mobile nav ---------- */
.mobile-nav{
  position:fixed;top:112px;left:0;right:0;bottom:0;z-index:99;
  background:var(--c-antracite);padding:var(--sp-lg);
  transform:translateX(100%);transition:transform var(--transition);
  overflow-y:auto;
}
.mobile-nav.is-open{transform:translateX(0)}
.mobile-nav__list>li{border-bottom:1px solid var(--c-border-dark)}
.mobile-nav a,.mobile-nav__accordion-trigger{
  display:flex;justify-content:space-between;width:100%;
  padding:16px 0;font-size:1.125rem;color:var(--c-text-on-dark);font-family:var(--f-body);
}
.mobile-nav__sub{padding-left:var(--sp-md);display:none}
.mobile-nav__item--has-sub.is-open .mobile-nav__sub{display:block}
.mobile-nav__sub a{font-size:1rem;color:var(--c-muted-on-dark);padding:10px 0;border-bottom:0}
.mobile-nav__chevron{width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}
.mobile-nav__lang{display:flex;gap:var(--sp-md);font-family:var(--f-mono);font-size:13px;margin-top:var(--sp-lg)}
.mobile-nav__lang a{color:var(--c-muted-on-dark);padding:0;width:auto;display:inline}
.mobile-nav__lang a.active{color:var(--c-celeste)}

/* ---------- 8. Hero (foto full-bleed, velatura chiara) ---------- */
.hero{position:relative;background:var(--c-bg-soft);overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:right center}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(to right,#FFFFFF 32%,rgba(255,255,255,.94) 48%,rgba(255,255,255,.62) 64%,rgba(255,255,255,.18) 84%,rgba(255,255,255,0) 100%)}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-2xl);align-items:center;min-height:560px;padding:var(--sp-2xl) 0}
.hero__content{max-width:560px}
.hero h1{color:var(--c-ink)}
.hero h1 strong{color:var(--c-ink);font-weight:500}
.hero__rule{width:48px;height:3px;background:var(--c-celeste);margin-bottom:var(--sp-md);border-radius:2px}
.hero__lead{margin-top:var(--sp-md);font-size:1.0625rem;line-height:1.8;color:var(--c-body)}
.hero__actions{margin-top:var(--sp-lg);display:flex;gap:var(--sp-sm);flex-wrap:wrap}
.hero .eyebrow{color:var(--c-celeste-text)}

/* ---------- 9. Stats band ---------- */
.stats{background:var(--c-antracite-2);border-top:1px solid var(--c-border-dark);border-bottom:1px solid var(--c-border-dark)}
.stats__inner{display:flex;justify-content:space-between;gap:var(--sp-lg);flex-wrap:wrap;padding:var(--sp-xl) 0}
.stat{flex:1 1 180px;text-align:center}
.stat__value{font-family:var(--f-head);font-weight:600;font-size:clamp(1.75rem,3vw,2.5rem);color:var(--c-celeste)}
.stat__label{font-size:.9rem;color:var(--c-muted-on-dark);margin-top:4px}

/* ---------- 10. Cards / grid ---------- */
.grid{display:grid;gap:var(--sp-md)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:var(--sp-lg) var(--sp-md);transition:var(--transition);
}
.card:hover{box-shadow:0 4px 20px rgba(26,35,48,.08)}
.card .icon{width:34px;height:34px;color:var(--c-celeste);margin-bottom:var(--sp-sm)}
.card h3{margin-bottom:6px}
.card p{color:var(--c-muted);font-size:.95rem;max-width:none}
.section--dark .card{background:var(--c-antracite-2);border:.5px solid var(--c-border-dark)}
.section--dark .card h3{color:#fff}
.section--dark .card p{color:var(--c-muted-on-dark)}

.card--person{text-align:center}
.card--person .card__photo{
  width:96px;height:96px;border-radius:50%;overflow:hidden;margin:0 auto var(--sp-sm);
  background:var(--c-celeste-tint);border:1px solid var(--c-border)
}
.card--person .card__photo img{width:100%;height:100%;object-fit:cover;display:block}
.card--person .card__photo--placeholder{display:flex;align-items:center;justify-content:center;color:var(--c-celeste)}

/* Due mondi — card simmetriche affiancate */
.worlds{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-lg)}
.world-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--radius-lg);
  overflow:hidden;transition:box-shadow var(--transition);
}
.world-card:hover{box-shadow:0 8px 30px rgba(26,35,48,.10)}
.world-card__media{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--c-border)}
.world-card__media img{width:100%;height:100%;object-fit:cover}
.world-card__body{padding:var(--sp-lg);display:flex;flex-direction:column;flex:1}
.world-card__body h3{margin-bottom:var(--sp-sm)}
.world-card__body p{color:var(--c-muted);margin-bottom:var(--sp-md);max-width:none;flex:1}

/* Partner logos */
.partners__grid{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--sp-md);margin-top:var(--sp-lg)}
.partner-logo{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-md);padding:var(--sp-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--sp-sm);height:160px;flex:1 1 200px;max-width:240px}
.partner-logo img{max-height:90px;max-width:100%;width:auto;object-fit:contain}
.partner-logo span{font-size:.85rem;font-weight:600;color:var(--c-muted);letter-spacing:.02em}

/* ---------- 11. Footer ---------- */
.site-footer{background:var(--c-antracite);color:var(--c-muted-on-dark);padding:var(--sp-2xl) 0 var(--sp-lg)}
.site-footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:var(--sp-lg);padding-bottom:var(--sp-xl);border-bottom:1px solid var(--c-border-dark)}
.site-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--sp-md)}
.site-footer__logo img{height:40px;margin-bottom:var(--sp-md)}
.site-footer p{font-size:.92rem;color:var(--c-muted-on-dark);max-width:38ch}
.site-footer__links li{margin-bottom:10px}
.site-footer__links a{color:var(--c-muted-on-dark);font-size:.92rem}
.site-footer__links a:hover{color:var(--c-celeste)}
.site-footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--sp-sm);padding-top:var(--sp-lg);font-size:.82rem;color:var(--c-muted)}
.site-footer__bottom a{color:var(--c-muted)}
.site-footer__bottom a:hover{color:var(--c-celeste)}

/* ---------- 12. Responsive ---------- */
@media (max-width:900px){
  .site-nav,.site-header__actions .btn{display:none}
  .hamburger{display:flex}
  .hero__inner{grid-template-columns:1fr;min-height:auto}
  .hero__bg::after{background:linear-gradient(to bottom,rgba(255,255,255,.96) 40%,rgba(255,255,255,.78) 100%)}
  .worlds{grid-template-columns:1fr}
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
  .site-footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .container{padding:0 var(--sp-md)}
  .section{padding:var(--sp-xl) 0}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .site-footer__top{grid-template-columns:1fr}
  .stat{flex-basis:45%}
}

/* ---------- 12b. Pagine interne ---------- */
/* Page hero compatto */
.page-hero{background:var(--c-bg-soft);border-bottom:1px solid var(--c-border)}
.page-hero__inner{padding:var(--sp-2xl) 0 var(--sp-xl)}
.page-hero h1{max-width:18ch}
.page-hero__lead{margin-top:var(--sp-md);font-size:1.0625rem;line-height:1.8;color:var(--c-body);max-width:60ch}
/* variante con immagine a destra */
.page-hero--media{padding-bottom:0;overflow:hidden}
.page-hero--media .page-hero__inner{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-2xl);align-items:center;padding-bottom:var(--sp-2xl)}
.page-hero--media .page-hero__lead{max-width:46ch}
.page-hero__media{position:relative;background:var(--c-celeste-tint);border-radius:var(--radius-lg);padding:14px}
.page-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-md);display:block}

/* Prose (testo discorsivo leggibile) */
.prose{max-width:68ch}
.prose p{margin-bottom:var(--sp-md);max-width:none}
.prose h2{margin-bottom:var(--sp-md)}
.prose h3{margin:var(--sp-lg) 0 var(--sp-sm)}

/* Lista concetti con icona */
.icon-list{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-lg);margin-top:var(--sp-lg)}
.icon-list__item{display:flex;gap:var(--sp-md);align-items:flex-start}
.icon-list .icon{width:30px;height:30px;color:var(--c-celeste);flex:none;margin-top:2px}
.icon-list__item h4{margin-bottom:4px;color:var(--c-ink)}
.icon-list__item p{color:var(--c-muted);font-size:.95rem;max-width:42ch}
.section--dark .icon-list__item h4{color:#fff}
.section--dark .icon-list__item p{color:var(--c-muted-on-dark)}

/* Pannello prodotto (WallSign / WallNext) */
.panel{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-xl);align-items:center}
.panel__media img{border-radius:var(--radius-md);width:100%;aspect-ratio:4/3;object-fit:cover}
.panel__body .tag{display:inline-block;font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--c-celeste);border:1px solid rgba(22,153,213,.35);border-radius:3px;padding:3px 9px;margin-bottom:var(--sp-sm)}

/* Verticali / gallery card */
.vcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow var(--transition)}
.vcard:hover{box-shadow:0 6px 24px rgba(26,35,48,.10)}
.vcard__media{aspect-ratio:3/2;background:var(--c-celeste-tint);display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid var(--c-border)}
.vcard__media img{width:100%;height:100%;object-fit:cover}
.vcard__media .icon{width:40px;height:40px;color:var(--c-celeste);opacity:.6}
.vcard__body{padding:var(--sp-md);display:flex;flex-direction:column;gap:6px;flex:1}
.vcard__body h3{font-size:1.05rem}
.vcard__body p{color:var(--c-muted);font-size:.9rem;max-width:none;flex:1}
.vcard__body .link-cta{font-size:.9rem;margin-top:6px}

/* Contatti */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-2xl);align-items:start}
.contact-list{display:grid;gap:var(--sp-lg)}
.contact-item{display:flex;gap:var(--sp-md);align-items:flex-start}
.contact-item .icon{width:26px;height:26px;color:var(--c-celeste);flex:none;margin-top:2px}
.contact-item h4{color:var(--c-ink);margin-bottom:2px}
.contact-item a{color:var(--c-celeste-text)}
.contact-map{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--c-border);min-height:320px;background:var(--c-bg-soft)}
.contact-map iframe{width:100%;height:100%;min-height:320px;border:0;display:block}

/* Contatti — Form */
.section--alt{background:var(--c-bg-soft)}
.contact-form-wrap{max-width:760px;margin:0 auto}
.contact-form-header{margin-bottom:var(--sp-lg)}
.contact-form-header h2{margin-top:var(--sp-xs)}
.contact-form-header p{color:var(--c-muted);margin-top:var(--sp-xs)}
.contact-form{display:grid;gap:var(--sp-md)}
.contact-form__row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-md)}
.contact-form__field{display:flex;flex-direction:column;gap:6px}
.contact-form__field label{font-size:.9rem;font-weight:500;color:var(--c-ink)}
.contact-form__field label span{color:var(--c-celeste)}
.contact-form__field input,
.contact-form__field textarea{
  width:100%;padding:11px 14px;
  border:1px solid var(--c-border);border-radius:var(--radius-sm);
  background:#fff;color:var(--c-ink);font-family:var(--f-body);font-size:1rem;
  transition:border-color var(--transition),box-shadow var(--transition);
  box-sizing:border-box;
}
.contact-form__field input:focus,
.contact-form__field textarea:focus{
  outline:none;border-color:var(--c-celeste);
  box-shadow:0 0 0 3px rgba(22,153,213,.15);
}
.contact-form__field textarea{resize:vertical;min-height:140px}
.contact-form__field--check{margin-top:var(--sp-xs)}
.contact-form__check-label{display:flex;align-items:flex-start;gap:10px;cursor:pointer;font-size:.9rem;color:var(--c-ink);line-height:1.5}
.contact-form__check-label>span{color:var(--c-ink)}
.contact-form__check-label input[type="checkbox"]{flex:none;margin-top:3px;width:16px;height:16px;accent-color:var(--c-celeste);cursor:pointer}
.contact-form__check-label a{color:var(--c-celeste-text);text-decoration:underline}
.contact-form__check-label span[aria-hidden]{color:var(--c-celeste)}
.contact-form__footer{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-md);flex-wrap:wrap}
.contact-form__note{font-size:.85rem;color:var(--c-muted)}
.contact-form__feedback{padding:14px 18px;border-radius:var(--radius-sm);font-size:.95rem;margin-top:var(--sp-xs)}
.contact-form__feedback--ok{background:#E6F9F0;color:#1A6B3C;border:1px solid #B2E4CB}
.contact-form__feedback--err{background:#FEF0EF;color:#8B2012;border:1px solid #F5C4BF}
@media(max-width:600px){.contact-form__row{grid-template-columns:1fr}}

/* Gallery */
.gallery-cat{margin-top:var(--sp-xl)}
.gallery-cat h3{margin-bottom:var(--sp-md)}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-sm)}
.gallery-grid img,.gallery-ph{aspect-ratio:4/3;width:100%;object-fit:cover;border-radius:var(--radius-md);background:var(--c-celeste-tint);display:flex;align-items:center;justify-content:center}
.gallery-ph{color:var(--c-celeste);border:1px dashed var(--c-border)}

@media (max-width:900px){
  .icon-list,.panel,.contact-grid{grid-template-columns:1fr}
  .page-hero--media .page-hero__inner{grid-template-columns:1fr;gap:var(--sp-lg)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .gallery-grid{grid-template-columns:1fr}
}

/* ---------- 12c. Gallery / Realizzazioni (rich) ---------- */
/* Barra filtri a chip */
.gallery-filter{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--sp-xs);margin-bottom:var(--sp-lg)}
.gfilter-btn{
  font-family:var(--f-head);font-weight:500;font-size:.9rem;color:var(--c-body);
  padding:8px 16px;border:1px solid var(--c-border);border-radius:999px;background:#fff;
  transition:var(--transition);line-height:1;
}
.gfilter-btn:hover{border-color:var(--c-celeste);color:var(--c-celeste-text)}
.gfilter-btn.is-active{background:var(--c-celeste);border-color:var(--c-celeste);color:#fff}
/* Colori per categoria (control room = celeste, digital signage = ambra) */
.gfilter-btn[data-filter="control-room"]::before,
.gfilter-btn[data-filter="digital-signage"]::before{
  content:"";display:inline-block;width:8px;height:8px;border-radius:50%;
  margin-right:7px;vertical-align:middle;position:relative;top:-1px;
}
.gfilter-btn[data-filter="control-room"]::before{background:var(--cat-cr)}
.gfilter-btn[data-filter="digital-signage"]::before{background:var(--cat-ds)}
.gfilter-btn[data-filter="control-room"].is-active{background:var(--c-celeste-text);border-color:var(--c-celeste-text)}
.gfilter-btn[data-filter="digital-signage"].is-active{background:var(--cat-ds-deep);border-color:var(--cat-ds-deep)}
.gfilter-btn.is-active::before{background:#fff}

/* Griglia card */
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-md)}
.gal-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--radius-md);
  overflow:hidden;transition:box-shadow var(--transition),transform var(--transition);
}
.gal-card:hover{box-shadow:0 8px 28px rgba(26,35,48,.10);transform:translateY(-2px)}
.gal-card.is-hidden{display:none}
/* Rigo colorato in alto per categoria */
.gal-card{border-top:3px solid var(--c-border)}
.gal-card[data-sector="control-room"]{border-top-color:var(--cat-cr)}
.gal-card[data-sector="digital-signage"]{border-top-color:var(--cat-ds)}

/* Slot immagine (cliccabile → lightbox). Placeholder se manca la foto */
.gal-card__img{
  position:relative;aspect-ratio:4/3;overflow:hidden;cursor:pointer;
  background:var(--c-celeste-tint);display:flex;align-items:center;justify-content:center;
  border-bottom:1px solid var(--c-border);
}
.gal-card__img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 400ms ease}
.gal-card:hover .gal-card__img img{transform:scale(1.04)}
.gal-card__ph{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--c-celeste);opacity:.7}
.gal-card__ph svg{width:34px;height:34px}
.gal-card__ph span{font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.gal-card__hint{
  position:absolute;inset:auto 0 0 0;z-index:2;padding:8px 10px;font-size:.72rem;
  font-family:var(--f-head);color:#fff;background:linear-gradient(to top,rgba(22,32,43,.78),transparent);
  opacity:0;transition:opacity var(--transition);text-align:right;
}
.gal-card__img:hover .gal-card__hint,.gal-card__img:focus-visible .gal-card__hint{opacity:1}
.gal-card__tag{
  position:absolute;top:10px;left:10px;z-index:2;font-family:var(--f-mono);font-size:10px;
  letter-spacing:.1em;text-transform:uppercase;color:#fff;background:rgba(22,32,43,.72);
  padding:4px 9px;border-radius:3px;
}
.gal-card__body{padding:var(--sp-md);display:flex;flex-direction:column;gap:6px;flex:1}
.gal-card__body h3{font-size:1.05rem}
.gal-card__body p{color:var(--c-muted);font-size:.9rem;max-width:none;flex:1}
.gal-card__specs{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.gal-card__specs li{
  font-family:var(--f-mono);font-size:11px;color:var(--c-celeste-text);
  background:var(--c-celeste-tint);border-radius:3px;padding:3px 8px;line-height:1.3;
}

/* Nota crediti / privacy immagini */
.gallery-note{
  margin-top:var(--sp-xl);text-align:center;font-size:.85rem;color:var(--c-muted);
  max-width:70ch;margin-left:auto;margin-right:auto;line-height:1.6;
}

/* Banda CTA finale (distinta dal footer antracite) */
.section--cta{background:#fff;color:var(--c-body)}
.section--cta h2{color:var(--c-ink)}
.section--cta .section-header p{color:var(--c-muted)}
.section--cta .btn--primary{background:var(--c-celeste);color:#fff}
.section--cta .btn--primary:hover{background:var(--c-celeste-deep);color:#fff}

/* FAQ accordion */
.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:var(--sp-xs)}
.faq__item{border:1px solid var(--c-border);border-radius:var(--radius-md);background:#fff;overflow:hidden}
.faq__q{
  display:flex;justify-content:space-between;align-items:center;gap:var(--sp-md);
  width:100%;padding:18px var(--sp-md);font-family:var(--f-head);font-weight:500;
  font-size:1rem;color:var(--c-ink);cursor:pointer;list-style:none;
}
.faq__q::-webkit-details-marker{display:none}
.faq__chevron{width:9px;height:9px;border-right:2px solid var(--c-celeste);border-bottom:2px solid var(--c-celeste);transform:rotate(45deg);transition:transform var(--transition);flex:none}
.faq__item[open] .faq__chevron{transform:rotate(225deg)}
.faq__a{padding:0 var(--sp-md) 18px;color:var(--c-muted);font-size:.95rem;max-width:none}

/* Lightbox */
.lightbox{border:none;padding:0;width:min(1100px,92vw);max-width:92vw;max-height:92vh;margin:auto;background:transparent;color:#fff}
.lightbox::backdrop{background:rgba(10,15,22,.86)}
.lightbox__inner{position:relative;display:flex;flex-direction:column}
.lightbox__img{width:100%;max-height:78vh;object-fit:contain;border-radius:var(--radius-md);background:#0F1822}
.lightbox__cap{display:flex;flex-direction:column;gap:4px;padding:var(--sp-sm) 4px 0;font-size:.9rem}
.lightbox__cap b{font-family:var(--f-head);font-weight:500;font-size:1rem}
.lightbox__notice{color:var(--c-muted-on-dark);font-size:.78rem}
.lightbox__close{
  position:absolute;top:12px;right:12px;z-index:2;width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.92);color:var(--c-ink);font-size:1.1rem;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 16px rgba(0,0,0,.3);
}
.lightbox__close:hover{background:var(--c-celeste);color:#fff}

@media (max-width:900px){
  .gal-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .gal-grid{grid-template-columns:1fr}
  .lightbox__close{top:8px;right:8px}
}

/* ---------- 12c. Feature sections (pattern WallNext, tema 3G) ---------- */
.feature-section{padding-block:var(--sp-2xl)}
.feature-section--white{background:#fff}
.feature-section--grey{background:var(--c-bg-soft)}
.feature-section--dark{background:var(--c-antracite)}
.feature-section__inner{display:flex;align-items:center;gap:var(--sp-2xl)}
.feature-section__content,.feature-section__visual{flex:1;min-width:0}
.feature-section--flip .feature-section__visual{order:-1}
.feature-section__visual img{width:100%;border-radius:var(--radius-md);aspect-ratio:4/3;object-fit:cover;display:block}
.feature-section__tag{display:inline-block;font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--c-celeste-text);background:var(--c-celeste-tint);border:1px solid rgba(22,153,213,.4);border-radius:var(--radius-sm);padding:5px 10px;margin-bottom:var(--sp-md)}
.feature-section--dark .feature-section__tag{color:var(--c-celeste);background:rgba(22,153,213,.12);border-color:rgba(22,153,213,.4)}
.feature-headline{font-family:var(--f-head);font-size:clamp(1.5rem,2.5vw,2rem);font-weight:400;line-height:1.2;margin-bottom:var(--sp-md);color:var(--c-ink)}
.feature-section--dark .feature-headline{color:#fff}
.feature-body{font-size:1rem;line-height:1.75;color:var(--c-body);max-width:58ch}
.feature-section--dark .feature-body{color:var(--c-muted-on-dark)}
.feature-body + .feature-body{margin-top:var(--sp-sm)}
.feature-section .link-cta{margin-top:var(--sp-md)}

.feature-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:var(--sp-xl)}
.feature-mini-card{display:flex;flex-direction:column;gap:4px;padding:0 var(--sp-lg)}
.feature-mini-card:first-child{padding-left:0}
.feature-mini-card:last-child{padding-right:0}
.feature-mini-card:not(:last-child){border-right:1px solid var(--c-border)}
.feature-section--dark .feature-mini-card:not(:last-child){border-right-color:var(--c-border-dark)}
.feature-mini-card__icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);margin-bottom:6px;background:var(--c-celeste-tint);color:var(--c-celeste)}
.feature-mini-card__icon svg{width:18px;height:18px}
.feature-section--dark .feature-mini-card__icon{background:rgba(22,153,213,.15)}
.feature-mini-card__title{font-family:var(--f-head);font-size:.95rem;font-weight:500;color:var(--c-ink)}
.feature-mini-card__body{font-size:.88rem;line-height:1.6;color:var(--c-muted);max-width:none}
.feature-section--dark .feature-mini-card__title{color:#fff}
.feature-section--dark .feature-mini-card__body{color:var(--c-muted-on-dark)}

/* Modules (3 pilastri) */
.modules{padding-block:var(--sp-2xl);background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.modules__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-md)}
.module-card{background:var(--c-bg-soft);border:1px solid var(--c-border);border-radius:var(--radius-md);padding:var(--sp-lg);display:flex;flex-direction:column}
.module-card .icon{width:34px;height:34px;color:var(--c-celeste);margin-bottom:var(--sp-sm)}
.module-card__title{font-family:var(--f-head);font-size:1.2rem;font-weight:500;color:var(--c-ink);margin-bottom:var(--sp-xs)}
.module-card__body{font-size:.92rem;color:var(--c-body);line-height:1.7;flex:1;max-width:none}
.module-card__media{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-sm);height:150px;display:flex;align-items:center;justify-content:center;padding:var(--sp-md);margin-bottom:var(--sp-md)}
.module-card__media img{max-height:100%;width:auto;margin:0}
.module-card .link-cta{margin-top:var(--sp-xs)}
.datasheet-accordion{margin-top:var(--sp-xs)}
.datasheet-accordion summary{cursor:pointer;list-style:none}
.datasheet-accordion summary::-webkit-details-marker{display:none}
.datasheet-accordion[open] summary::after{content:"\2191"}
.datasheet-accordion__list{margin:var(--sp-xs) 0 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:4px}
.datasheet-accordion__list a{font-size:.88rem;color:var(--c-celeste-text);font-family:var(--f-head);font-weight:500;transition:color var(--transition)}
.datasheet-accordion__list a::before{content:"→ ";font-size:.8rem}
.datasheet-accordion__list a:hover{color:var(--c-celeste)}

@media (max-width:900px){
  .feature-section__inner{flex-direction:column;gap:var(--sp-lg)}
  .feature-section--flip .feature-section__visual{order:0}
  .feature-mini-grid,.modules__grid{grid-template-columns:1fr;gap:var(--sp-lg)}
  .feature-mini-card{padding:0}
  .feature-mini-card:not(:last-child){border-right:0;border-bottom:1px solid var(--c-border);padding-bottom:var(--sp-lg)}
  .feature-section--dark .feature-mini-card:not(:last-child){border-bottom-color:var(--c-border-dark)}
}

/* ---------- 13. Accessibilità ---------- */
:focus-visible{outline:2px solid var(--c-celeste);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}