/* ===== Extro Srl – stile comune ===== */
:root {
  --nero: #161616;
  --nero-2: #1f1f1f;
  --testo: #1a1a1a;
  --grigio: #6b6b6b;
  --linea: #e4e4e0;
  --chiaro: #f4f4f0;
  --bianco: #ffffff;
  --giallo: #f2b705;
  --giallo-scuro: #9a6e00;
  --giallo-chiaro: #ffd23f;
  --header-h: 72px;
  --font-titoli: "Montserrat", system-ui, sans-serif;
  --font-testo: "Inter", system-ui, sans-serif;
}

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

/* ===== Header / menu ===== */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(16px, 5vw, 64px);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}
.menu { display: flex; gap: clamp(16px, 2.5vw, 36px); list-style: none; }
.menu a {
  font-family: var(--font-titoli);
  font-weight: 600; font-size: 14px; letter-spacing: .04em;
  padding: 6px 0; position: relative;
}
.menu a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--giallo);
}
.menu a:hover::after, .menu a.attivo::after { width: 100%; }
.menu-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 40px; height: 40px; position: relative; order: 3;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  position: absolute; left: 9px; width: 22px; height: 2px; background: var(--testo);
  content: ""; transition: transform .25s, top .25s;
}
.menu-toggle span { top: 19px; }
.menu-toggle span::before { top: -7px; left: 0; }
.menu-toggle span::after { top: 7px; left: 0; }
.menu-aperto .menu-toggle span { background: transparent; }
.menu-aperto .menu-toggle span::before { top: 0; transform: rotate(45deg); }
.menu-aperto .menu-toggle span::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .menu {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--bianco); border-bottom: 1px solid var(--linea);
    padding: 8px 16px 16px;
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .25s, transform .25s, visibility .25s;
  }
  .menu a { display: block; padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--linea); }
  .menu a::after { display: none; }
  .menu-aperto .menu { opacity: 1; visibility: visible; transform: none; }
}

/* ===== Slide ===== */
.slide {
  min-height: 100vh;
  padding: calc(var(--header-h) + 48px) clamp(16px, 6vw, 96px) 64px;
  display: flex; flex-direction: column; justify-content: center;
  position: relative;
}
.slide__inner { width: 100%; max-width: 1240px; margin: 0 auto; }
.slide--scura { background: var(--nero); color: var(--bianco); }
.slide--scura::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(22,22,22,.92) 0%, rgba(22,22,22,.55) 100%);
}
.slide--scura > * { position: relative; }
.slide--tricolore::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 6px;
  background: var(--giallo);
}

h1, h2, h3 { font-family: var(--font-titoli); line-height: 1.12; }
h2 { font-size: clamp(30px, 4vw, 48px); font-weight: 700; margin-bottom: 20px; }
h3 { font-size: 17px; font-weight: 700; }
.testo-grigio { color: var(--grigio); }

/* Hero */
.hero h1 { font-size: clamp(48px, 8vw, 104px); font-weight: 800; margin: 8px 0 28px; }
.hero h1 .titolo-riga + .titolo-riga { font-weight: 500; color: #d6d6d6; }
.hero .formula {
  font-family: "Inter", ui-monospace, monospace;
  font-size: clamp(15px, 2vw, 24px); font-weight: 500; letter-spacing: .04em;
  color: var(--giallo-chiaro); white-space: nowrap; margin-bottom: 8px;
}

.formula sub { font-size: .7em; color: #d6d6d6; }
@media (max-width: 520px) { .formula { white-space: normal; font-size: 14px; } }
.hero p { font-size: clamp(16px, 1.6vw, 20px); max-width: 560px; color: #e8e8e8; }

.bottone {
  display: inline-block; margin-top: 36px; padding: 14px 28px;
  background: var(--bianco); color: var(--nero); border-radius: 6px;
  font-family: var(--font-titoli); font-weight: 700; font-size: 14px; letter-spacing: .04em;
  transition: transform .2s;
}
.bottone:hover { transform: translateY(-2px); }

/* Chi siamo */
.chi-siamo { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: center; }

/* Icone + liste */
.icona {
  width: 40px; height: 40px; flex: none; border-radius: 8px;
  background: var(--nero); color: var(--bianco);
  display: grid; place-items: center;
}
.icona svg { width: 20px; height: 20px; }

/* Processo */

/* Materiali */

.card__tipo { font-family: var(--font-titoli); font-size: 15px; font-weight: 600; color: var(--giallo-scuro); margin-top: 4px; }
.card__titoletto { font-size: 11px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--grigio); margin: 18px 0 8px; }
.caratteristiche { list-style: none; font-size: 15px; font-weight: 500; }
.caratteristiche li { display: flex; align-items: center; gap: 8px; padding: 2px 0; }
.caratteristiche li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--giallo); flex: none; }
.tag { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.tag li { font-size: 12px; border: 1px solid var(--linea); border-radius: 999px; padding: 3px 11px; }

/* Punti di forza */

/* Perché noi */

/* Portfolio */
.portfolio { display: grid; grid-template-columns: 1fr 1.2fr 1.2fr; gap: 28px; align-items: stretch; }
.settori { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin-top: 12px; }
.settori li { font-size: 13px; border: 1px solid var(--linea); border-radius: 999px; padding: 4px 14px; }
.lavoro { border: 1px solid var(--linea); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; }
.lavoro img { width: 100%; height: 420px; object-fit: cover; background: #eee; }
.lavoro div { padding: 16px 20px; }
.lavoro p { font-size: 13px; color: var(--grigio); }

/* Contatti */
.contatti { display: grid; grid-template-columns: 1.6fr 1fr; gap: 48px; align-items: center; }
.contatti__dati { display: grid; grid-template-columns: repeat(3, auto); gap: 28px 48px; margin-top: 40px; justify-content: start; }
.contatti__dati dt { font-size: 11px; font-weight: 600; letter-spacing: .25em; color: var(--giallo-chiaro); text-transform: uppercase; margin-bottom: 4px; }
.contatti__dati dd { font-size: 17px; white-space: nowrap; }
.contatti__dati a:hover { text-decoration: underline; }
.slide--scura p { color: #d9d9d9; }

/* Animazione ingresso */

/* ===== Pagine interne ===== */
.pagina-testa {
  position: relative; color: var(--bianco);
  background: var(--nero);
  padding: calc(var(--header-h) + 72px) clamp(16px, 6vw, 96px) 72px;
}
.pagina-testa::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(22,22,22,.94) 0%, rgba(22,22,22,.6) 100%);
}
.pagina-testa::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 6px;
  background: var(--giallo);
}
.pagina-testa > * { position: relative; }
.pagina-testa h1 { font-size: clamp(36px, 5.5vw, 64px); font-weight: 800; margin-bottom: 18px; }
.pagina-testa p { color: #d9d9d9; font-size: clamp(16px, 1.5vw, 19px); max-width: 640px; }

.sezione { padding: clamp(56px, 8vw, 96px) clamp(16px, 6vw, 96px); }
.sezione--chiara { background: var(--chiaro); }

/* Materiali: schede dettaglio */
.materiale {
  display: grid; grid-template-columns: 340px 1fr;
  border: 1px solid var(--linea); border-radius: 14px; overflow: hidden; background: var(--bianco);
}
.materiale + .materiale { margin-top: 28px; }
.materiale__img {
  background-size: cover; background-position: center; min-height: 260px;
  display: flex; flex-direction: column; justify-content: flex-end; padding: 24px; position: relative;
}
.materiale__img::before { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,.55), transparent 65%); }
.materiale__img > * { position: relative; color: var(--bianco); }
.materiale__num { font-size: 12px; font-weight: 600; letter-spacing: .25em; opacity: .85; }
.materiale__img h2 { font-size: clamp(28px, 3vw, 38px); font-weight: 800; margin: 4px 0 0; }
.materiale__corpo { padding: clamp(24px, 3vw, 40px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; align-content: start; }
.materiale__corpo .card__titoletto { margin-top: 0; }
.materiale__testa { grid-column: 1 / -1; padding-bottom: 20px; border-bottom: 3px solid var(--nero); }
.materiale__testa .card__tipo { font-size: 22px; margin: 0; }
.badge-v0 {
  display: inline-block; margin-top: 12px;
  background: #fff4cc; color: var(--giallo-scuro); border-radius: 6px; padding: 6px 12px; font-size: 13px; font-weight: 600;
}

/* Tabella di confronto */

/* Servizi: fasi in verticale */
.fasi { list-style: none; margin-top: 40px; max-width: 900px; }
.fasi li { display: grid; grid-template-columns: 72px 1fr; gap: 24px; padding: 28px 0; border-top: 1px solid var(--linea); }
.fasi li:last-child { border-bottom: 1px solid var(--linea); }
.fasi__num { font-family: var(--font-titoli); font-size: 40px; font-weight: 800; line-height: 1; color: var(--giallo-scuro); }
.fasi h3 { font-size: 20px; display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.fasi p { color: var(--grigio); }

/* Due colonne generiche */
.due-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.lavori { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

/* Banda CTA */

.bottone--giallo { background: var(--giallo); color: var(--nero); }

/* Contatti */
.contatto-voce { display: flex; gap: 16px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--linea); }
.contatto-voce:first-child { padding-top: 0; }
.contatto-voce dt { font-size: 11px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--grigio); }
.contatto-voce dd { font-size: 17px; font-weight: 500; }
.contatto-voce a:hover { color: var(--giallo-scuro); }
.modulo { background: var(--chiaro); border-radius: 14px; padding: clamp(24px, 3vw, 40px); }
.modulo h2 { font-size: 26px; margin-bottom: 6px; }
.modulo .campi { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.modulo label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.modulo .pieno { grid-column: 1 / -1; }
.modulo input, .modulo select, .modulo textarea {
  width: 100%; font: inherit; font-size: 15px; padding: 12px 14px;
  border: 1px solid #d6d6d0; border-radius: 8px; background: var(--bianco); color: var(--testo);
}
.modulo textarea { min-height: 140px; resize: vertical; }
.modulo input:focus, .modulo select:focus, .modulo textarea:focus { outline: 2px solid var(--giallo); outline-offset: 1px; border-color: transparent; }
.modulo button { border: 0; cursor: pointer; margin-top: 20px; }
.modulo .nota { font-size: 13px; color: var(--grigio); margin-top: 12px; }
.mappa { width: 100%; height: 380px; border: 0; border-radius: 14px; display: block; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  
  
  .portfolio { grid-template-columns: 1fr 1fr; }
  .portfolio > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
  .slide { min-height: auto; padding-top: calc(var(--header-h) + 40px); }
  .hero { min-height: 100vh; }
  .chi-siamo, .contatti { grid-template-columns: 1fr; }
  
  
  
  
  
  
  
  
  .contatti__dati { grid-template-columns: 1fr 1fr; }
  .materiale { grid-template-columns: 1fr; }
  .materiale__img { min-height: 180px; }
  .materiale__corpo { grid-template-columns: 1fr 1fr; }
  .due-col { grid-template-columns: 1fr; }
  .fasi li { grid-template-columns: 52px 1fr; gap: 16px; }
  .fasi__num { font-size: 30px; }
}
@media (max-width: 520px) {
  .portfolio { grid-template-columns: 1fr; }
  .lavoro img { height: 340px; }
  .contatti__dati { grid-template-columns: 1fr; }
  
  .materiale__corpo, .lavori, .modulo .campi { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  
}

/* ===== Logo come il biglietto da visita: fascia gialla + EXTRO SRL ===== */
.logo-testo {
  display: inline-flex; flex-direction: column; align-items: flex-start;
  background: var(--nero); color: var(--bianco); line-height: 1.1;
  padding: 0 12px 6px; border-radius: 3px;
}
.logo-testo__formula {
  align-self: stretch; margin: 0 -12px 4px; padding: 2px 12px;
  background: var(--giallo); color: var(--nero);
  font-family: var(--font-testo); font-size: 10px; font-weight: 600; letter-spacing: .02em; white-space: nowrap;
}
.logo-testo__nome { font-family: var(--font-titoli); font-size: 18px; font-weight: 800; letter-spacing: .14em; white-space: nowrap; }
.logo-testo__sotto { font-size: 9.5px; font-weight: 600; color: var(--giallo); letter-spacing: .04em; white-space: nowrap; margin-top: 1px; }
.logo-testo--grande { justify-self: end; padding: 0 28px 20px; border-radius: 8px; box-shadow: 0 20px 50px rgba(0,0,0,.4); border: 1px solid #2c2c2c; }
.logo-testo--grande .logo-testo__formula { margin: 0 -28px 14px; padding: 8px 28px; font-size: clamp(14px, 1.5vw, 19px); border-radius: 8px 8px 0 0; }
.logo-testo--grande .logo-testo__nome { font-size: clamp(30px, 3.6vw, 48px); letter-spacing: .1em; }
.logo-testo--grande .logo-testo__sotto { font-size: clamp(14px, 1.4vw, 18px); margin-top: 6px; }
@media (max-width: 820px) { .logo-testo--grande { justify-self: start; } }

/* ===== Footer (ex ultima slide della home) ===== */
.footer-grande {
  position: relative; color: var(--bianco);
  padding: clamp(64px, 8vw, 104px) clamp(16px, 6vw, 96px) 6px;
}
.footer__base {
  max-width: 1240px; margin: clamp(48px, 6vw, 72px) auto 0; padding: 22px 0 28px;
  border-top: 1px solid rgba(255,255,255,.12);
  display: flex; justify-content: space-between; align-items: center; gap: 12px 28px; flex-wrap: wrap;
  font-size: 13px; color: #9a9a9a;
}
.footer__menu { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.footer__menu a { color: #cfcfcf; transition: color .2s; }
.footer__menu a:hover { color: var(--giallo-chiaro); }
.footer-grande .contatti__dati a:hover { color: var(--giallo-chiaro); }
@media (max-width: 820px) { .footer__base { padding-bottom: 84px; } }