@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url(fonts/manrope-latin.woff2) format('woff2');
}

:root {
  --nero: #0b0b0b;
  --nero-2: #151515;
  --bianco: #ffffff;
  --crema: #f6f3ec;
  --grigio: #9a9a9a;
  --grigio-scuro: #5a5a5a;
  --linea: rgba(255, 255, 255, 0.14);
  --giallo: #f5c451;
  --largo: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Manrope', -apple-system, 'Segoe UI', sans-serif;
  background: var(--nero); color: var(--bianco);
  font-size: 18px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.contenitore { max-width: var(--largo); margin: 0 auto; padding: 0 32px; }
.giallo { color: var(--giallo); }

.etichetta {
  font-size: 13px; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--giallo); margin-bottom: 24px; display: flex; align-items: center; gap: 14px;
}
.etichetta::before { content: ""; width: 36px; height: 2px; background: currentColor; }

h1 { font-size: clamp(56px, 10vw, 148px); line-height: 0.95; font-weight: 800; letter-spacing: -0.04em; margin-bottom: 32px; }
h2 { font-size: clamp(36px, 5.6vw, 76px); line-height: 1.02; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 72px; }
h3 { font-weight: 800; letter-spacing: -0.01em; }

/* Testata */
.testata { position: fixed; top: 0; left: 0; right: 0; z-index: 20; transition: background .3s, border-color .3s; border-bottom: 1px solid transparent; }
.testata.piena { background: rgba(11, 11, 11, 0.86); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-color: var(--linea); }
.testata-riga { display: flex; align-items: center; justify-content: space-between; height: 84px; gap: 24px; }
.testata-logo img { width: 230px; }
.menu { display: flex; align-items: center; gap: 32px; font-size: 15px; font-weight: 600; }
.menu a { text-decoration: none; color: rgba(255,255,255,.75); transition: color .2s; }
.menu a:hover { color: var(--bianco); }
.menu .menu-bottone { color: var(--nero); background: var(--giallo); padding: 10px 22px; border-radius: 999px; }
.menu .menu-bottone:hover { color: var(--nero); background: var(--bianco); }
.menu-apri { display: none; width: 44px; height: 44px; border: 1px solid var(--linea); border-radius: 50%; background: transparent; cursor: pointer; position: relative; }
.menu-apri span, .menu-apri span::before, .menu-apri span::after { position: absolute; left: 50%; width: 18px; height: 2px; margin-left: -9px; background: var(--bianco); transition: transform .25s, background .25s; }
.menu-apri span { top: 50%; margin-top: -1px; }
.menu-apri span::before, .menu-apri span::after { content: ''; left: 0; margin-left: 0; }
.menu-apri span::before { top: -6px; }
.menu-apri span::after { top: 6px; }
.testata.aperta .menu-apri span { background: transparent; }
.testata.aperta .menu-apri span::before { transform: translateY(6px) rotate(45deg); }
.testata.aperta .menu-apri span::after { transform: translateY(-6px) rotate(-45deg); }
.menu-mobile { display: none; }
.testata.aperta { background: var(--nero); border-color: var(--linea); }
.testata.aperta .menu-mobile { display: block; padding: 8px 0 28px; }
.menu-mobile a { display: block; padding: 14px 0; font-size: 22px; font-weight: 700; color: var(--bianco); text-decoration: none; border-top: 1px solid var(--linea); }
.menu-mobile a:first-child { border-top: 0; }

/* Apertura */
.apertura { position: relative; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; padding-top: 140px; }
.apertura-sfondo {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(11,11,11,.96) 0%, rgba(11,11,11,.82) 45%, rgba(11,11,11,.45) 100%),
    linear-gradient(0deg, rgba(11,11,11,1) 0%, rgba(11,11,11,0) 40%),
    url(img/lavori/mignini-2.jpg) center / cover no-repeat;
  transform: scale(1.06); animation: zoom 24s ease-out forwards;
}
@keyframes zoom { to { transform: scale(1); } }
.apertura-globo { position: absolute; right: -8vw; top: 50%; width: min(62vw, 820px); translate: 0 -55%; opacity: .22; animation: gira 90s linear infinite; pointer-events: none; }
@keyframes gira { to { rotate: 360deg; } }
.apertura-contenuto { position: relative; width: 100%; }
.apertura-testo { font-size: clamp(19px, 2vw, 24px); max-width: 640px; color: rgba(255,255,255,.78); margin-bottom: 44px; }
.bottoni { display: flex; gap: 14px; flex-wrap: wrap; }
.bottone { display: inline-block; padding: 18px 36px; border-radius: 999px; text-decoration: none; font-weight: 700; font-size: 16px; transition: transform .2s, background .2s, color .2s; }
.bottone:hover { transform: translateY(-2px); }
.bottone-giallo { background: var(--giallo); color: var(--nero); }
.bottone-giallo:hover { background: var(--bianco); }
.bottone-vuoto { border: 1.5px solid rgba(255,255,255,.4); }
.bottone-vuoto:hover { border-color: var(--bianco); }
.apertura-dati { position: relative; width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 90px; border-top: 1px solid var(--linea); }
.apertura-dati div { padding: 28px 0 40px; }
.apertura-dati strong { display: block; font-size: clamp(26px, 3vw, 38px); font-weight: 800; letter-spacing: -0.02em; }
.apertura-dati span { color: var(--grigio); font-size: 15px; }

/* Fascia */
.fascia { background: var(--giallo); color: var(--nero); overflow: hidden; padding: 22px 0; }
.fascia-binario { display: flex; width: max-content; animation: scorri 45s linear infinite; }
.fascia-ferma .fascia-binario { animation-play-state: paused; }
.fascia span { font-size: 22px; font-weight: 800; letter-spacing: -0.01em; white-space: nowrap; padding: 0 28px; display: flex; align-items: center; gap: 56px; }
.fascia span::after { content: "●"; font-size: 10px; }
@keyframes scorri { to { transform: translateX(-50%); } }

/* Sezioni */
.sezione { padding: 150px 0; }

/* Servizi */
.servizi { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--linea); }
.servizio { padding: 48px 48px 56px 0; border-bottom: 1px solid var(--linea); position: relative; transition: background .3s; }
.servizio:nth-child(odd) { border-right: 1px solid var(--linea); }
.servizio:nth-child(even) { padding-left: 48px; padding-right: 0; }
.servizio .numero { font-size: 14px; font-weight: 700; color: var(--giallo); letter-spacing: .1em; }
.servizio h3 { font-size: clamp(28px, 3vw, 40px); margin: 18px 0 14px; }
.servizio p { color: rgba(255,255,255,.65); max-width: 460px; }

/* Lavori */
.sezione-lavori { background: var(--nero-2); }
.progetto { margin-bottom: 120px; }
.progetto:last-of-type { margin-bottom: 0; }
.progetto-testa { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; margin-bottom: 32px; }
.progetto-tipo { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--giallo); margin-bottom: 10px; }
.progetto h3 { font-size: clamp(32px, 4vw, 54px); line-height: 1.05; }
.progetto-desc { color: rgba(255,255,255,.65); }
.crediti { display: block; margin-top: 10px; font-size: 14px; color: var(--grigio); }
.mosaico { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-template-rows: 260px 260px; gap: 12px; }
.mosaico img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; transition: transform .6s ease, filter .6s; filter: saturate(.92); }
.mosaico img:first-child { grid-row: span 2; }
.mosaico img:nth-child(2) { grid-column: span 2; }
.mosaico:hover img { filter: saturate(.7) brightness(.8); }
.mosaico img:hover { filter: none; transform: scale(1.02); }

/* Libro */
.libro { display: grid; grid-template-columns: 260px 1fr; gap: 48px; align-items: center; margin-top: 12px; background: var(--nero); border-radius: 6px; padding: 40px; }
.libro img { border-radius: 4px; box-shadow: 0 24px 60px rgba(0,0,0,.6); }
.libro-titolo { font-size: clamp(24px, 2.6vw, 34px); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 14px; }
.libro-dati { color: var(--grigio); font-size: 15px; }

/* Come lavoro */
.sezione-chiara { background: var(--crema); color: var(--nero); }
.sezione-chiara .etichetta { color: var(--nero); }
.passi { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.passi li { color: var(--grigio-scuro); font-size: 17px; border-top: 2px solid var(--nero); padding-top: 28px; }
.passi .numero { display: block; font-size: 72px; font-weight: 800; line-height: 1; color: var(--nero); letter-spacing: -0.04em; margin-bottom: 24px; }
.passi strong { display: block; color: var(--nero); font-size: 20px; margin-bottom: 8px; line-height: 1.3; }

/* Clienti */
.clienti { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px 48px; }
.clienti h3 { font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--giallo); padding-bottom: 14px; border-bottom: 1px solid var(--linea); margin-bottom: 18px; }
.clienti ul { list-style: none; display: grid; gap: 8px; font-size: 20px; font-weight: 600; }
.clienti li { color: rgba(255,255,255,.85); }
.clienti a { text-decoration: none; transition: color .2s; }
.clienti a:hover { color: var(--giallo); }
.freccia { font-size: .7em; margin-left: 6px; color: var(--grigio); vertical-align: .15em; transition: color .2s; }
.clienti a:hover .freccia { color: var(--giallo); }

/* Contatti */
.sezione-gialla { background: var(--giallo); color: var(--nero); }
.sezione-gialla .etichetta { color: var(--nero); }
.sezione-gialla h2 { margin-bottom: 24px; }
.contatti-testo { font-size: clamp(19px, 2vw, 24px); max-width: 620px; margin-bottom: 56px; }
.email-grande { display: inline-block; font-size: clamp(28px, 5.4vw, 72px); font-weight: 800; letter-spacing: -0.03em; text-decoration: none; border-bottom: 4px solid var(--nero); line-height: 1.15; margin-bottom: 64px; word-break: break-word; }
.email-grande:hover { opacity: .7; }
.contatti { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid var(--nero); }
.contatti a { display: block; text-decoration: none; padding: 24px 24px 0 0; font-size: 20px; font-weight: 800; }
.contatti a:hover { text-decoration: underline; }
.contatti span { display: block; font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; opacity: .6; margin-bottom: 4px; }

/* Piede */
.piede { padding: 48px 0; font-size: 14px; color: var(--grigio); }
.piede-riga { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.piede-logo { width: 200px; opacity: .85; }

/* Comparsa allo scorrimento */
.animazioni .rivela { opacity: 0; transform: translateY(36px); transition: opacity .9s ease, transform .9s ease; }
.animazioni .rivela.visibile { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .apertura-sfondo, .apertura-globo, .fascia-binario { animation: none; }
  .animazioni .rivela { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* Tablet */
@media (max-width: 960px) {
  .menu a:not(.menu-bottone) { display: none; }
  .menu { gap: 12px; }
  .menu-apri { display: block; }
  .passi { grid-template-columns: repeat(2, 1fr); gap: 48px 32px; }
  .clienti { grid-template-columns: repeat(2, 1fr); }
  .progetto-testa { grid-template-columns: 1fr; gap: 16px; }
}

/* Telefono */
@media (max-width: 640px) {
  body { font-size: 17px; }
  .contenitore { padding: 0 20px; }
  .testata-riga { height: 68px; }
  .testata-logo img { width: 170px; }
  .menu .menu-bottone { padding: 9px 18px; font-size: 14px; }
  .apertura { padding-top: 120px; }
  .apertura-globo { width: 120vw; right: -50vw; top: 30%; }
  .apertura-dati { grid-template-columns: 1fr 1fr; margin-top: 56px; }
  .apertura-dati div { padding: 20px 0 24px; }
  .apertura-dati div:last-child { grid-column: span 2; border-top: 1px solid var(--linea); }
  .bottone { padding: 16px 28px; }
  .fascia span { font-size: 18px; }
  .sezione { padding: 96px 0; }
  h2 { margin-bottom: 48px; }
  .servizi { grid-template-columns: 1fr; }
  .servizio, .servizio:nth-child(odd), .servizio:nth-child(even) { padding: 36px 0 40px; border-right: 0; }
  h2 br { display: none; }
  .apertura-globo { opacity: .12; }
  .progetto { margin-bottom: 80px; }
  .mosaico { grid-template-columns: 1fr 1fr; grid-template-rows: 220px 130px 130px; gap: 8px; }
  .mosaico img:first-child { grid-row: auto; grid-column: span 2; }
  .mosaico img:nth-child(2) { grid-column: auto; }
  .mosaico img:nth-child(4) { grid-column: span 2; }
  .passi, .clienti, .contatti { grid-template-columns: 1fr; }
  .passi .numero { font-size: 56px; }
  .libro { grid-template-columns: 1fr; gap: 28px; padding: 28px; }
  .libro img { width: 70%; }
  .clienti ul { font-size: 18px; }
  .contatti a { padding: 20px 0; border-bottom: 1px solid rgba(0,0,0,.2); }
}