/* =========================================================
   CB COSTRUZIONI — Design system istituzionale
   Palette navy/oro derivata dal logo aziendale.
   ========================================================= */

:root{
  /* Rampa navy (ruolo strutturale, eredita lo schema LD) */
  --c-100: #E7ECF2; /* navy pallido: bg sezioni alt / testo chiaro su sfondo scuro */
  --c-200: #9FB2C9; /* slate chiaro: eyebrow/breadcrumb/etichette su sfondo scuro */
  --c-400: #5B6B80; /* slate scuro: testo muto su sfondo chiaro */
  --c-700: #14375E; /* navy secondario: hover / sezioni slate */
  --c-900: #0A213C; /* navy primario CB: bottoni, header attivo, footer, sfondi scuri */

  /* Oro CB: accento di marca, uso mirato (CTA primarie, dettagli) */
  --gold: #F9C903;
  --gold-dark: #D6A900;
  --on-gold: #0A213C;

  --white: #FFFFFF;
  --text: #0A213C;
  --text-muted: #5B6B80;
  --text-on-dark: #ECF0F5;
  --border: rgba(10,33,60,0.12);
  --border-on-dark: rgba(255,255,255,0.14);

  --radius: 2px;
  --max-width: 1180px;

  --font-head: "Archivo Black", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-subtitle: "Montserrat", "Inter", sans-serif;

  --transition: 0.25s ease;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; font-size: 112.5%; }

body{
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }

a{ color:inherit; text-decoration:none; }

ul{ list-style:none; }

button{ font-family: inherit; cursor:pointer; }

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

/* ---------- Tipografia ---------- */
h1,h2,h3,h4{
  font-family: var(--font-head);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--text);
}
h1{ font-size: clamp(2.1rem, 4.2vw, 3.4rem); }
h2{ font-size: clamp(1.6rem, 2.8vw, 2.3rem); }
h3{ font-size: 1.25rem; }
h4{ font-size: 1.05rem; }

.eyebrow{
  display:inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-dark);
  font-weight: 700;
  margin-bottom: 12px;
}

.section--dark .eyebrow{ color: var(--gold); }

p.lead{
  font-family: var(--font-subtitle);
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
}

/* ---------- Sezioni ---------- */
.section{
  padding: 88px 0;
  background:
    repeating-linear-gradient(0deg, rgba(10,33,60,0.05) 0, rgba(10,33,60,0.05) 1px, transparent 1px, transparent 56px),
    repeating-linear-gradient(90deg, rgba(10,33,60,0.05) 0, rgba(10,33,60,0.05) 1px, transparent 1px, transparent 56px),
    var(--white);
}
.section--tight{ padding: 56px 0; }
.section--alt{
  background:
    repeating-linear-gradient(0deg, rgba(10,33,60,0.06) 0, rgba(10,33,60,0.06) 1px, transparent 1px, transparent 56px),
    repeating-linear-gradient(90deg, rgba(10,33,60,0.06) 0, rgba(10,33,60,0.06) 1px, transparent 1px, transparent 56px),
    var(--c-100);
}
.section--alt .eyebrow{ color: var(--gold-dark); }
.section--alt p.lead{ color: var(--c-700); }
.section--dark{ background: var(--c-900); color: var(--text-on-dark); }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4{ color: var(--white); }
.section--dark p{ color: var(--c-200); }
.section--slate{ background: var(--c-700); color: var(--text-on-dark); }
.section--slate h1, .section--slate h2, .section--slate h3{ color: var(--white); }
.section--slate p{ color: var(--c-100); }

/* ---------- Striscia fotografica (intermezzo visivo a tutta larghezza) ---------- */
.photo-strip{
  height: 320px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-top: 4px solid var(--gold);
  border-bottom: 4px solid var(--gold);
}

.section-head{ margin-bottom: 48px; max-width: 720px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Header / Navigazione ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 84px;
}
.logo{
  font-family: var(--font-head);
  font-weight: 400;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--text);
  display:flex;
  align-items:center;
  gap:10px;
}
.logo-img{
  height: 150px;
  width: auto;
  display:block;
}
.logo .logo-mark{
  width: 30px; height: 30px;
  border: 2px solid var(--c-900);
  position:relative;
  flex-shrink:0;
}
.logo .logo-mark::after{
  content:"";
  position:absolute;
  left:-2px; top:7px;
  width:8px; height:2px;
  background: var(--white);
}
.logo small{
  display:block;
  font-family: var(--font-body);
  font-weight:400;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-check{ position:absolute; opacity:0; width:0; height:0; pointer-events:none; }

.nav-links{
  display:flex;
  align-items:center;
  gap: 6px;
}
.nav-links a{
  display:block;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  position:relative;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}
.nav-links a:hover{ color: var(--c-900); border-color: var(--border); }
.nav-links a.active{ background: var(--c-900); color: var(--white); }
.nav-cta{
  background: var(--gold);
  color: var(--on-gold) !important;
  padding: 10px 20px;
  border-radius: 999px;
  border-color: var(--gold);
}
.nav-cta:hover{ background: var(--gold-dark); border-color: var(--gold-dark); color: var(--on-gold) !important; }

.has-dropdown{ position:relative; }
.dropdown{
  position:absolute;
  top: 100%;
  left: -16px;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: 0 18px 40px rgba(10,33,60,0.12);
  min-width: 260px;
  padding: 10px;
  opacity:0;
  visibility:hidden;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{
  opacity:1; visibility:visible; transform:translateY(0);
}
.dropdown a{
  display:block;
  padding: 9px 12px;
  font-size: 0.86rem;
  border-radius: var(--radius);
}
.dropdown a:hover{ background: var(--c-100); color:var(--text); }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width: 30px; height: 24px;
  cursor:pointer;
}
.nav-toggle span{
  display:block; height:2px; width:100%;
  background: var(--c-900);
  transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 900px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position: fixed;
    top: 84px; right:0; bottom:0;
    height: calc(100vh - 84px);
    width: min(78vw, 340px);
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 26px 22px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y:auto;
    box-shadow: -12px 0 30px rgba(10,33,60,0.12);
  }
  .nav-links.open, .nav-check:checked ~ .header-inner .nav-links{
    transform: translateX(0);
  }
  .nav-links a{ padding: 13px 18px; border: 1px solid var(--border); border-radius: 999px; margin-bottom: 6px; }
  .dropdown{
    position:static; opacity:1; visibility:visible; transform:none;
    box-shadow:none; border:none; padding: 0 0 0 14px; display:none;
  }
  .has-dropdown.open .dropdown{ display:block; }
  .nav-cta{ margin-top:10px; text-align:center; }
}

/* ---------- Bottoni ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 13px 26px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}
.btn--primary,
.btn--outline,
.btn--outline-light{
  background: var(--gold);
  border-color: var(--gold);
  color: var(--on-gold);
}
.btn--primary:hover,
.btn--outline:hover,
.btn--outline-light:hover{
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  color: var(--on-gold);
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height: 86vh;
  display:flex;
  align-items:center;
  overflow:hidden;
  background-size: cover;
  background-position: center;
  background-color: var(--c-700);
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  z-index:1;
  background: linear-gradient(180deg, rgba(10,33,60,0.55) 0%, rgba(10,33,60,0.72) 60%, rgba(10,33,60,0.88) 100%);
}
.hero-video{
  position:absolute; inset:0;
  z-index:0;
  width:100%; height:100%;
  object-fit:cover;
}
.hero-content{ position:relative; z-index:2; max-width: 820px; padding-bottom: 40px; }
.hero-content .eyebrow{ color: var(--gold); }
.hero h1{ color: var(--white); }
.hero p.lead{ color: var(--c-100); margin: 22px 0 32px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

.hero h1.hero-display{
  font-size: clamp(2.6rem, 6.2vw, 5.1rem);
  line-height: 1.05;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 18px 0 0;
}
.hero-subtitle{
  font-family: var(--font-subtitle);
  font-weight: 400;
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  letter-spacing: -0.005em;
  color: var(--c-100);
  margin: 10px 0 0;
}

.hero-tag-card{
  position:absolute;
  z-index:2;
  right: 28px;
  bottom: 38px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 22px 24px;
  max-width: 230px;
}
.hero-tag-card-label{
  display:block;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-200);
  margin-bottom: 12px;
}
.hero-tag-list{ display:flex; flex-direction:column; gap:9px; }
.hero-tag-list li{
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--white);
  padding-left: 14px;
  position:relative;
}
.hero-tag-list li::before{
  content:"";
  position:absolute; left:0; top:8px;
  width:6px; height:6px;
  background: var(--white);
}
@media (max-width: 760px){ .hero-tag-card{ display:none; } }

.hero-cert-badges{
  position:absolute;
  z-index:2;
  right: 28px;
  top: 28px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
  max-width: 300px;
}
.hero-cert-badge{
  display:flex;
  align-items:center;
  gap:6px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(249,201,3,0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 7px 13px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--gold);
  white-space: nowrap;
}
.hero-cert-badge svg{ width:15px; height:15px; flex-shrink:0; }
@media (max-width: 760px){ .hero-cert-badges{ display:none; } }

.page-banner{
  background: linear-gradient(180deg, rgba(10,33,60,0.80), rgba(10,33,60,0.90)), url('../img/sfondo-gru-cantiere.jpg') center 35% / cover no-repeat;
  color: var(--white);
  padding: 64px 0 56px;
}
.page-banner .eyebrow{ color: var(--gold); }
.page-banner h1{ color: var(--white); }
.page-banner p{ color: var(--c-100); max-width: 640px; margin-top: 14px; }
.breadcrumb{ font-size:0.82rem; color: var(--c-200); margin-bottom:14px; }
.breadcrumb a{ color: var(--c-200); }
.breadcrumb a:hover{ color: var(--white); }

/* ---------- Card servizi ---------- */
.grid{ display:grid; gap: 26px; }
.grid--3{ grid-template-columns: repeat(3, 1fr); }
.grid--4{ grid-template-columns: repeat(4, 1fr); }
.grid--2{ grid-template-columns: repeat(2, 1fr); }

.service-card{
  display:block;
  background: var(--white);
  border: 1px solid var(--border);
  padding: 30px 26px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  height:100%;
}
.service-card:hover{
  border-color: var(--c-900);
  transform: translateY(-4px);
  box-shadow: 0 18px 34px rgba(10,33,60,0.1);
}
.service-card .num{
  font-family: var(--font-head);
  font-size: 0.82rem;
  color: var(--gold-dark);
  margin-bottom: 18px;
  display:block;
}
.service-card h3{ margin-bottom: 10px; }
.service-card p{ color: var(--text-muted); font-size: 0.93rem; }
.service-card .go{
  display:inline-flex; align-items:center; gap:6px;
  margin-top:18px; font-size:0.85rem; font-weight:600; color: var(--c-900);
}

/* ---------- Il Metodo (step numerati) ---------- */
.method-step{
  background: var(--white);
  border: 1px solid var(--border);
  padding: 28px 24px;
  height: 100%;
}
.method-step .method-num{
  display:block;
  font-family: var(--font-head);
  font-size: 2.3rem;
  font-weight: 400;
  color: var(--gold-dark);
  line-height: 1;
  margin-bottom: 12px;
}
.method-step .method-tag{
  display:inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-gold);
  background: var(--gold);
  padding: 3px 10px;
  margin-bottom: 12px;
}
.method-step h4{ margin-bottom: 8px; }
.method-step p{ color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Card portfolio ---------- */
.portfolio-card{
  position:relative;
  overflow:hidden;
  background: var(--c-100);
  aspect-ratio: 4/3;
}
.portfolio-card img{
  width:100%; height:100%; object-fit:cover;
  transition: transform 0.5s ease;
}
.portfolio-card:hover img{ transform: scale(1.06); }
.portfolio-card .ph-placeholder{
  width:100%; height:100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px;
  background: repeating-linear-gradient(135deg, var(--c-100) 0 18px, var(--white) 18px 36px);
  color: var(--c-400);
}
.portfolio-card .ph-placeholder svg{ width:34px; height:34px; opacity:0.6; }
.portfolio-card .ph-placeholder span{ font-size:0.74rem; letter-spacing:0.06em; text-transform:uppercase; }
.portfolio-card .tag{
  position:absolute; top:14px; left:14px;
  background: rgba(255,255,255,0.92);
  color: var(--c-900);
  font-size: 0.72rem; font-weight:600; letter-spacing:0.04em; text-transform:uppercase;
  padding: 5px 11px;
}
.demo-tag{
  position:absolute; top:14px; right:14px; z-index:2;
  background: rgba(10,33,60,0.85);
  color: var(--white);
  font-size: 0.68rem; font-weight:600; letter-spacing:0.05em; text-transform:uppercase;
  padding: 5px 10px;
}
.portfolio-card .caption{
  position:absolute; left:0; right:0; bottom:0;
  padding: 18px 16px;
  background: linear-gradient(180deg, transparent, rgba(10,33,60,0.86));
  color: var(--white);
  font-size: 0.92rem; font-weight:600;
  opacity:0; transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition);
}
.portfolio-card:hover .caption{ opacity:1; transform:none; }

/* ---------- Filtro portfolio ---------- */
.filter-bar{
  display:flex; gap:10px; flex-wrap:wrap;
  margin-bottom: 36px;
}
.filter-btn{
  border: 1px solid var(--border);
  background: var(--white);
  padding: 9px 18px;
  font-size: 0.85rem; font-weight:600;
  color: var(--text-muted);
  border-radius: 999px;
  transition: all var(--transition);
}
.filter-btn:hover{ border-color: var(--c-900); color: var(--c-900); }
.filter-btn.active{ background: var(--c-900); border-color:var(--c-900); color: var(--white); }
.portfolio-grid-item{ transition: opacity 0.3s ease, transform 0.3s ease; }
.portfolio-grid-item.is-hidden{ display:none; }

/* ---------- Statistiche ---------- */
.stats{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align:center;
}
.stat-num{
  font-family: var(--font-head);
  font-size: 2.1rem;
  font-weight:400;
  color: var(--c-900);
}
.section--dark .stat-num, .section--slate .stat-num{ color: var(--white); }
.stat-label{
  font-size: 0.78rem; letter-spacing:0.1em; text-transform:uppercase;
  color: var(--text-muted); margin-top:6px;
}
.section--dark .stat-label, .section--slate .stat-label{ color: var(--c-100); }

/* ---------- Valori / Mission Vision ---------- */
.value-card{ padding: 26px 0; border-top: 1px solid var(--border); }
.value-card:first-child{ border-top:none; }
.value-card h4{ margin-bottom:6px; }
.value-card p{ color: var(--text-muted); font-size:0.93rem; }

.mv-card{
  background: var(--white);
  border: 1px solid var(--border);
  padding: 38px 34px;
}
.mv-card .eyebrow{ color:var(--gold-dark); }

/* ---------- Certificazioni ---------- */
.cert-card{
  border: 2px solid var(--c-900);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align:center;
}
.cert-card h4{ font-size:0.98rem; }
.cert-card p{ font-size:0.84rem; color:var(--text-muted); margin-top:6px; }

.cert-badge{
  border: 2px solid var(--c-900);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
}
.cert-badge .cert-badge-iso{
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-900);
  font-weight: 600;
}
.cert-badge .cert-badge-logo{
  width: 44px; height: 44px;
  object-fit: contain;
  margin-bottom: 10px;
}
.cert-badge .cert-badge-num{
  font-family: var(--font-head);
  font-size: 1.9rem;
  font-weight: 400;
  color: var(--c-900);
  margin: 4px 0 10px;
}
.cert-badge .cert-badge-label{
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.cert-issuer{
  margin-top: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 36px;
  display: flex;
  align-items: center;
  gap: 34px;
  flex-wrap: wrap;
}
.cert-issuer-logo{
  width: 220px;
  max-width: 100%;
  height: auto;
  flex-shrink: 0;
}
.cert-issuer-text h4{ font-size: 1rem; margin-bottom: 8px; }
.cert-issuer-text p{ font-size: 0.92rem; color: var(--text-muted); margin-bottom: 8px; }
.cert-issuer-text a{ font-size: 0.88rem; font-weight: 600; }
@media (max-width: 600px){
  .cert-issuer{ flex-direction: column; text-align: center; padding: 28px 22px; }
  .cert-issuer-logo{ width: 180px; }
}

/* ---------- Galleria mosaico ---------- */
.mosaic{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 150px;
  gap: 10px;
}
.mosaic .m-item{
  position:relative;
  overflow:hidden;
  background: var(--c-100);
}
.mosaic .m-item img{ width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.mosaic .m-item:hover img{ transform: scale(1.08); }
.mosaic .m-item.w2{ grid-column: span 2; }
.mosaic .m-item.h2{ grid-row: span 2; }
.mosaic .m-item .social-tag{
  position:absolute; top:10px; right:10px;
  width: 26px; height:26px;
  background: rgba(255,255,255,0.9);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
}
.mosaic .m-item .social-tag svg{ width:14px; height:14px; color:var(--c-900); }

@media (max-width: 760px){
  .mosaic{ grid-template-columns: repeat(2, 1fr); grid-auto-rows: 130px; }
  .mosaic .m-item.w2{ grid-column: span 2; }
}

/* ---------- Social links ---------- */
.social-row{ display:flex; gap:14px; }
.social-row a{
  display:flex; align-items:center; justify-content:center;
  color: inherit;
  transition: transform var(--transition), opacity var(--transition);
}
.social-row a:hover{ transform: scale(1.08); opacity:0.85; }
.social-row svg{ width:40px; height:40px; display:block; }

/* ---------- Form contatti ---------- */
.contact-form{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-field{ display:flex; flex-direction:column; gap:8px; }
.form-field.full{ grid-column: 1 / -1; }
.form-field label{ font-size: 0.82rem; font-weight:600; color: var(--text); }
.form-field input, .form-field select, .form-field textarea{
  border: 1px solid var(--c-200);
  background: var(--white);
  padding: 13px 14px;
  font-family: inherit;
  font-size: 0.94rem;
  color: var(--text);
  border-radius: var(--radius);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{
  outline: none;
  border-color: var(--c-900);
}
.form-note{ font-size:0.78rem; color:var(--text-muted); margin-top:10px; }
.form-status{ font-size:0.88rem; margin-top:14px; display:none; }
.form-status.visible{ display:block; }

/* ---------- Calcolatore preventivo ---------- */
.calc-grid{ gap: 50px; align-items: flex-start; }
.calc-card{
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.calc-field{ display:flex; flex-direction:column; gap:12px; }
.calc-label{ font-size:0.82rem; font-weight:600; color:var(--text); }

.calc-options{ display:grid; grid-template-columns: repeat(2, 1fr); gap:12px; }
.calc-options--3{ grid-template-columns: repeat(3, 1fr); }
.calc-option{
  position: relative;
  border: 1px solid var(--c-200);
  border-radius: var(--radius);
  padding: 14px 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all var(--transition);
}
.calc-option input{ position:absolute; opacity:0; pointer-events:none; }
.calc-option-title{ font-weight:600; font-size:0.92rem; color:var(--text); }
.calc-option-desc{ font-size:0.78rem; color:var(--text-muted); }
.calc-option:hover{ border-color: var(--c-900); }
.calc-option:has(input:checked), .calc-option.is-selected{ border-color: var(--c-900); background: var(--c-100); }
.calc-option--sm{ align-items:center; text-align:center; padding:12px 10px; }

.calc-range{ width:100%; accent-color: var(--gold-dark); height:6px; cursor:pointer; }
.calc-range-labels{ display:flex; justify-content:space-between; font-size:0.74rem; color:var(--text-muted); }

.calc-result{
  background: var(--c-900);
  color: var(--white);
  padding: 38px 32px;
  border-radius: var(--radius);
  position: sticky;
  top: 110px;
}
.calc-result .eyebrow{ color: var(--gold); }
.calc-price{ font-family: var(--font-head); font-weight:400; font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 14px 0 10px; color: var(--white); line-height:1.2; }
.calc-detail{ color: var(--c-100); font-size:0.92rem; margin-bottom:24px; }
.calc-cta{ width:100%; justify-content:center; margin-bottom:18px; }
.calc-result .form-note{ color: var(--c-200); }

.contact-info-card{
  background: var(--c-900);
  color: var(--white);
  padding: 38px 32px;
}
.contact-info-card h3{ color:var(--white); margin-bottom:18px; }
.contact-info-card .row{ display:flex; gap:12px; margin-bottom:16px; font-size:0.92rem; color:var(--c-100); }
.contact-info-card svg{ width:18px; height:18px; flex-shrink:0; margin-top:2px; }

.map-frame{
  width:100%; height:280px;
  background: var(--c-100);
  border: 1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  color: var(--c-400);
  font-size: 0.85rem;
}

/* ---------- Trust strip (banda oro) ---------- */
.trust-strip{
  background: var(--gold);
  color: var(--on-gold);
  padding: 16px 0;
}
.trust-strip .container{
  display:flex;
  justify-content:center;
  align-items:center;
  flex-wrap:wrap;
  gap: 8px 32px;
  text-align:center;
}
.trust-strip span{
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.trust-strip .dot{ opacity:0.45; font-weight:400; }
@media (max-width: 640px){ .trust-strip .dot{ display:none; } .trust-strip .container{ gap:6px 20px; } }

/* ---------- Home cert strip (loghi certificazioni, no riquadri) ---------- */
.home-cert-strip{
  background: var(--white);
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.home-cert-row{
  display:flex;
  justify-content:center;
  align-items:center;
  flex-wrap:wrap;
  gap: 14px 44px;
}
.home-cert-item{
  display:flex;
  align-items:center;
  gap:10px;
}
.home-cert-item .home-cert-icon{
  width:28px; height:28px;
  color: var(--c-900);
  flex-shrink:0;
}
.home-cert-item span{
  font-size:0.9rem;
  font-weight:700;
  color: var(--c-900);
  letter-spacing:0.01em;
}
@media (max-width: 640px){ .home-cert-row{ gap:10px 26px; } }

/* ---------- CTA band ---------- */
.cta-band{
  background: linear-gradient(180deg, rgba(20,55,94,0.84), rgba(10,33,60,0.92)), url('../img/sfondo-gru-cantiere.jpg') center 65% / cover no-repeat;
  color: var(--white);
  padding: 64px 0;
  text-align:center;
}
.cta-band h2{ color:var(--white); margin-bottom:18px; }
.cta-band p{ color: var(--c-100); max-width:560px; margin: 0 auto 28px; }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--c-900);
  color: var(--c-100);
  padding: 64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-on-dark);
}
.footer-col h4{ color: var(--white); font-size:0.85rem; letter-spacing:0.06em; text-transform:uppercase; margin-bottom:18px; }
.footer-col a{ display:block; font-size:0.9rem; color: var(--c-100); margin-bottom:10px; transition: color var(--transition); }
.footer-col a:hover{ color: var(--white); }
.footer-logo{ color:var(--white); font-family:var(--font-head); font-weight:400; font-size:1.2rem; margin-bottom:14px; display:block; }
.footer-logo-img{ height: 48px; width:auto; display:block; }
.footer-col p{ font-size:0.88rem; color: var(--c-200); margin-bottom: 18px; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top: 24px; font-size: 0.8rem; color: var(--c-400);
  flex-wrap:wrap; gap:14px;
}
.footer-bottom a:hover{ color: var(--white); text-decoration:underline; }

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 200;
  background: var(--white);
  border-top: 1px solid var(--border);
  box-shadow: 0 -8px 24px rgba(10,33,60,0.14);
  padding: 18px 0;
}
.cookie-banner.is-dismissed{ display:none; }
.cookie-banner-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cookie-banner-inner p{ font-size:0.86rem; color: var(--text-muted); max-width:680px; margin:0; }
.cookie-banner-inner a{ text-decoration:underline; color: var(--text); }
.cookie-banner-actions{ display:flex; gap:12px; flex-shrink:0; }
.cookie-banner .btn{ padding:10px 20px; font-size:0.85rem; }
@media (max-width:700px){
  .cookie-banner-inner{ flex-direction:column; align-items:flex-start; }
  .cookie-banner-actions{ width:100%; }
  .cookie-banner-actions .btn{ flex:1; justify-content:center; }
}

/* ---------- Contenuto legale (Cookie Policy) ---------- */
.legal-content{ max-width: 760px; }
.legal-content h3{ margin: 32px 0 12px; }
.legal-content h3:first-child{ margin-top:0; }
.legal-content p{ margin-bottom: 14px; }
.legal-content ul{ margin: 0 0 14px 0; }
.legal-content li{ padding-left: 20px; position:relative; margin-bottom:10px; }
.legal-content li::before{ content:"–"; position:absolute; left:0; color:var(--c-400); }
.legal-content .btn{ margin-top:4px; }

/* ---------- Fade-in (progressive enhancement) ---------- */
.fade-in{ opacity:1; transform:none; transition: opacity .7s ease, transform .7s ease; }
.fade-in.js-armed{ opacity:0; transform: translateY(20px); }
.fade-in.is-visible{ opacity:1; transform:none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .grid--4{ grid-template-columns: repeat(2, 1fr); }
  .grid--3{ grid-template-columns: repeat(2, 1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; gap:30px; }
}
@media (max-width: 700px){
  .grid--2, .grid--3, .grid--4{ grid-template-columns: 1fr; }
  .stats{ grid-template-columns: repeat(2,1fr); }
  .contact-form{ grid-template-columns: 1fr; }
  .calc-options, .calc-options--3{ grid-template-columns: 1fr; }
  .calc-result{ position: static; }
  .footer-grid{ grid-template-columns: 1fr; }
  .section{ padding: 56px 0; }
  .photo-strip{ height: 180px; }
}

/* ---------- Team index (lista numerata) ---------- */
.team-index{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--border);
  margin-top: 36px;
}
.team-index-col{
  padding: 28px 32px;
  border-left: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display:flex;
  flex-direction:column;
  min-height: 200px;
}
.team-index-col:nth-child(odd){ border-left:none; }
.team-index-num{
  font-family: var(--font-head);
  font-size: 2.6rem;
  font-weight: 400;
  color: var(--c-200);
  line-height:1;
}
.team-index-role{
  margin-top: 10px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.team-index-name{
  margin-top: 14px;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--text);
}
.team-index-desc{
  margin-top: 10px;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-muted);
}
@media (max-width: 480px){
  .team-index{ grid-template-columns: 1fr; }
  .team-index-col{ border-left:none !important; }
}

/* ---------- Hero variante "tecnica" (no foto) ---------- */
.hero--tech{
  background-color: var(--c-700);
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.06) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.06) 0 1px, transparent 1px 64px);
}

/* ---------- Hero variante "foto" (sfondo fotografico statico, immagine intera) ---------- */
.hero--photo{ background-color: var(--c-900); }
.hero-bg-photo{
  position:absolute; inset:0; z-index:0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
/* testo tutto a sinistra: sganciato dal contenitore centrato, così la foto resta libera a destra */
.hero--photo .container{
  margin-left: 0;
  margin-right: auto;
  max-width: none;
  width: 100%;
}
.hero--photo .hero-content{ max-width: 620px; }
@media (max-width: 760px){
  .hero--photo .hero-content{ max-width: 100%; }
}

/* ---------- Liste con check ---------- */
.check-list{ display:flex; flex-direction:column; gap:15px; margin: 22px 0; }
.check-list li{ display:flex; gap:12px; align-items:flex-start; font-size:0.96rem; color:var(--text); }
.check-list svg{ width:20px; height:20px; color:var(--gold-dark); flex-shrink:0; margin-top:2px; }

/* ---------- Blocco "approccio" ---------- */
.approach-block{
  border-left: 3px solid var(--c-900);
  padding-left: 22px;
  font-size: 1.05rem;
  color: var(--text-muted);
  margin: 32px 0;
}

/* ---------- Sidebar pagina servizio ---------- */
.service-sidebar-card{ background: var(--c-100); padding: 32px 26px; }
.service-sidebar-card h4{ margin-bottom: 16px; }
.service-sidebar-card ul{ display:flex; flex-direction:column; gap:10px; margin-bottom:22px; }
.service-sidebar-card ul a{ font-size:0.88rem; color: var(--text-muted); transition: color var(--transition); }
.service-sidebar-card ul a:hover, .service-sidebar-card ul a.active{ color: var(--c-900); font-weight:600; }
.service-sidebar-card .btn{ width:100%; justify-content:center; }

/* ---------- Carosello scroll-snap con frecce laterali ---------- */
.carousel-wrap{ position:relative; }
.carousel{
  display:flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
}
.carousel::-webkit-scrollbar{ display:none; height:0; }
.carousel .carousel-item{
  position:relative;
  flex: 0 0 80%;
  scroll-snap-align: start;
  aspect-ratio: 4/3;
  overflow:hidden;
  background: var(--c-100);
}
.carousel .carousel-item img{ width:100%; height:100%; object-fit:cover; }
@media (min-width: 700px){ .carousel .carousel-item{ flex: 0 0 47%; } }
@media (min-width: 1000px){ .carousel .carousel-item{ flex: 0 0 31.5%; } }

.carousel-arrow{
  position:absolute;
  top:50%;
  transform: translateY(-50%);
  width:46px;
  height:46px;
  border-radius:50%;
  border:none;
  background: var(--c-900);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  z-index:2;
  padding:0;
  box-shadow: 0 8px 18px rgba(0,0,0,0.22);
  transition: background var(--transition), opacity var(--transition);
}
.carousel-arrow svg{ width:20px; height:20px; }
.carousel-arrow:hover{ background: var(--c-700); }
.carousel-arrow:disabled{ opacity:0.3; cursor:default; }
.carousel-arrow--prev{ left:8px; }
.carousel-arrow--next{ right:8px; }
.carousel-arrow--prev svg{ transform: scaleX(-1); }
@media (max-width: 700px){
  .carousel-arrow{ width:38px; height:38px; }
  .carousel-arrow svg{ width:16px; height:16px; }
  .carousel-arrow--prev{ left:4px; }
  .carousel-arrow--next{ right:4px; }
}

/* ---------- Card categoria portfolio (overview) ---------- */
.cat-card{
  position:relative;
  display:block;
  overflow:hidden;
  background: var(--c-700);
  aspect-ratio: 4/3.2;
  scroll-margin-top: 130px;
}
.cat-card img{ width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.cat-card:hover img{ transform: scale(1.06); }
.cat-card .ph-placeholder{ width:100%; height:100%; }
.cat-card .cat-overlay{
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(10,33,60,0.1) 0%, rgba(10,33,60,0.82) 100%);
  display:flex; flex-direction:column; justify-content:flex-end;
  padding: 26px 24px;
  color: var(--white);
}
.cat-card .cat-overlay h3{ color: var(--white); margin-bottom:6px; }
.cat-card .cat-overlay p{ color: var(--c-100); font-size:0.86rem; max-width:90%; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.cat-card .cat-overlay .go{ margin-top:14px; font-size:0.82rem; font-weight:600; display:inline-flex; align-items:center; gap:6px; }
.cat-card .cat-overlay .go svg{ width:16px; height:16px; flex-shrink:0; }

/* ---------- Badge piccolo ---------- */
.pill{
  display:inline-block;
  font-size: 0.72rem;
  letter-spacing:0.05em;
  text-transform:uppercase;
  font-weight:600;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--c-700);
  margin-bottom: 14px;
}

/* ---------- Placeholder generico (fuori dalle card portfolio) ---------- */
.ph-placeholder{
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px;
  background: repeating-linear-gradient(135deg, var(--c-100) 0 18px, var(--white) 18px 36px);
  color: var(--c-400);
  min-height: 220px;
}
.ph-placeholder svg{ width:32px; height:32px; opacity:0.6; }
.ph-placeholder span{ font-size:0.74rem; letter-spacing:0.06em; text-transform:uppercase; }

/* ---------- Esito invio form (senza JS, via :target) ---------- */
.form-success, .form-error{
  display:none;
  padding: 16px 20px;
  margin-bottom: 22px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--c-900);
  font-size: 0.92rem;
}
.form-error{ border-left-color: var(--c-400); }

/* ---------- Galleria fotografica: griglia uniforme con celle quadrate ---------- */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.gallery-thumb{
  display:block;
  position: relative;
  border: 0;
  padding: 0;
  margin: 0;
  background: none;
  cursor: pointer;
  overflow: hidden;
  border-radius: var(--radius);
  grid-column: span 2;
  aspect-ratio: 1 / 1;
}
.gallery-thumb img{
  width:100%; height:100%; object-fit:cover;
  transition: transform .4s ease;
  display:block;
}
.gallery-thumb:hover img{ transform: scale(1.07); }
.gallery-thumb::after{
  content:"";
  position:absolute; inset:0;
  background: rgba(10,33,60,0);
  transition: background var(--transition);
}
.gallery-thumb:hover::after{ background: rgba(10,33,60,0.12); }

@media (max-width: 1000px){
  .gallery-grid{ grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 600px){
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); gap: 8px; }
}

.lightbox-overlay{
  display:none;
  position: fixed; inset:0;
  background: rgba(8,16,28,0.92);
  z-index: 999;
  align-items:center; justify-content:center;
  padding: 40px;
}
.lightbox-overlay.is-open{ display:flex; }
.lightbox-overlay img{
  max-width: 100%; max-height: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.lightbox-close{
  position:absolute; top:18px; right:24px;
  background:none; border:0;
  color: var(--white);
  font-size: 2.2rem;
  line-height:1;
  cursor:pointer;
  padding: 6px 10px;
}
.lightbox-close:hover{ color: var(--gold); }

/* ---------- Prima / Dopo (case study) ---------- */
.before-after{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-top: 30px;
}
.before-after-item{
  position:relative;
  aspect-ratio: 4/3.2;
  overflow:hidden;
  background: var(--c-700);
}
.before-after-item img{ width:100%; height:100%; object-fit:cover; }
.ba-label{
  position:absolute;
  left:16px; bottom:16px;
  background: rgba(10,33,60,0.88);
  color: var(--white);
  font-size:0.76rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  font-weight:700;
  padding:8px 14px;
  border-radius: var(--radius);
}
.ba-label--gold{ background: var(--gold); color: var(--on-gold); }
@media (max-width: 700px){
  .before-after{ grid-template-columns: 1fr; }
}

/* ---------- Video feature ---------- */
.video-feature{
  margin-top: 24px;
  border: 4px solid var(--gold);
  line-height:0;
}
.video-feature video{ width:100%; display:block; max-height:640px; background:#000; }
#grazie:target, #form-error:target{ display:block; }