/* ==========================================================================
   Gierre Service S.r.l. — Foglio di stile unico
   Mobile-first, nessuna dipendenza esterna.
   ========================================================================== */

:root {
  --blu: #1b4fa0;
  --blu-scuro: #123a7a;
  --navy: #0d2547;
  --navy-profondo: #081a36;
  --acciaio: #6b7280;
  --acciaio-scuro: #374151;
  --ghiaccio: #f4f6fa;
  --bianco: #ffffff;
  --bordo: #dbe1ec;
  --testo: #26303f;
  --testo-attenuato: #5b6676;
  --radius: 6px;
  --container: 1180px;
  --ombra: 0 8px 28px rgba(13, 37, 71, 0.12);
  --transizione: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--testo);
  background: var(--bianco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--blu);
}

h1, h2, h3, h4 {
  line-height: 1.2;
  margin: 0 0 0.6em;
  color: var(--navy);
  font-weight: 800;
}

p {
  margin: 0 0 1em;
}

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

/* Motivo "segnaletica": barre diagonali bianche su blu */
.hazard {
  height: 8px;
  background: repeating-linear-gradient(
    -55deg,
    var(--bianco) 0 10px,
    var(--blu) 10px 26px
  );
}

/* ==========================================================================
   Pulsanti
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  border: 2px solid transparent;
  transition: background var(--transizione), color var(--transizione), border-color var(--transizione), transform var(--transizione);
  cursor: pointer;
  font-size: 1rem;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primario {
  background: var(--blu);
  color: var(--bianco);
}

.btn-primario:hover {
  background: var(--blu-scuro);
}

.btn-contorno {
  background: transparent;
  color: var(--bianco);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-contorno:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--bianco);
}

/* ==========================================================================
   Header e navigazione
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bianco);
  border-bottom: 1px solid var(--bordo);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--navy);
}

.brand img {
  width: 46px;
  height: 46px;
}

.brand-testo {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  line-height: 1.15;
  text-transform: uppercase;
}

.brand-testo small {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--acciaio);
  letter-spacing: 0.14em;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--bordo);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--navy);
  transition: transform var(--transizione), opacity var(--transizione);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bianco);
  border-bottom: 1px solid var(--bordo);
  box-shadow: var(--ombra);
  padding: 1rem 1.25rem 1.5rem;
}

.site-nav.aperto {
  display: block;
}

.site-nav ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.site-nav li + li {
  border-top: 1px solid var(--bordo);
}

.site-nav a:not(.btn) {
  display: block;
  padding: 0.8rem 0.2rem;
  text-decoration: none;
  color: var(--navy);
  font-weight: 600;
}

.site-nav a:not(.btn):hover,
.site-nav a[aria-current="page"]:not(.btn) {
  color: var(--blu);
}

.site-nav .btn {
  width: 100%;
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex;
    position: static;
    align-items: center;
    gap: 1.5rem;
    background: none;
    border: 0;
    box-shadow: none;
    padding: 0;
  }

  .site-nav ul {
    display: flex;
    gap: 1.5rem;
    margin: 0;
  }

  .site-nav li + li {
    border: 0;
  }

  .site-nav a:not(.btn) {
    padding: 0.4rem 0;
    position: relative;
  }

  .site-nav a:not(.btn)::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -2px;
    height: 3px;
    background: var(--blu);
    transition: right var(--transizione);
  }

  .site-nav a:not(.btn):hover::after,
  .site-nav a[aria-current="page"]:not(.btn)::after {
    right: 0;
  }

  .site-nav .btn {
    width: auto;
    padding: 0.65rem 1.2rem;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  color: var(--bianco);
  background:
    linear-gradient(rgba(8, 26, 54, 0.82), rgba(13, 37, 71, 0.88)),
    url("../assets/img/hero-home.jpg") center / cover no-repeat;
  padding: 4.5rem 0 5rem;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 8px;
  background: repeating-linear-gradient(-55deg, var(--bianco) 0 10px, var(--blu) 10px 26px);
  opacity: 0.9;
}

.hero-kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #9db8e8;
  border-left: 4px solid var(--blu);
  padding-left: 0.7rem;
  margin-bottom: 1rem;
}

.hero h1 {
  color: var(--bianco);
  font-size: clamp(1.9rem, 5.5vw, 3.2rem);
  max-width: 20ch;
  margin-bottom: 0.5em;
}

.hero p {
  max-width: 55ch;
  font-size: 1.1rem;
  color: #d7e0f2;
}

.hero-azioni {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

/* Hero ridotto per pagine interne */
.hero-pagina {
  padding: 3rem 0 3.4rem;
}

.briciole {
  font-size: 0.85rem;
  margin-bottom: 1rem;
  color: #9db8e8;
}

.briciole a {
  color: #cddcf6;
  text-decoration: none;
}

.briciole a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Sezioni
   ========================================================================== */

.sezione {
  padding: 3.5rem 0;
}

.sezione-alt {
  background: var(--ghiaccio);
}

.sezione-scura {
  background: var(--navy);
  color: #d7e0f2;
}

.sezione-scura h2,
.sezione-scura h3 {
  color: var(--bianco);
}

.kicker {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blu);
  margin-bottom: 0.5rem;
}

.sezione h2 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
}

.intro-sezione {
  max-width: 62ch;
  color: var(--testo-attenuato);
  margin-bottom: 2rem;
}

.sezione-scura .intro-sezione {
  color: #b9c7e2;
}

/* ==========================================================================
   Griglie e card
   ========================================================================== */

.griglia {
  display: grid;
  gap: 1.4rem;
}

@media (min-width: 640px) {
  .griglia-2 { grid-template-columns: repeat(2, 1fr); }
  .griglia-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 980px) {
  .griglia-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--bianco);
  border: 1px solid var(--bordo);
  border-top: 4px solid var(--blu);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transizione), transform var(--transizione);
}

.card:hover {
  box-shadow: var(--ombra);
  transform: translateY(-3px);
}

.card-icona {
  width: 52px;
  height: 52px;
  color: var(--blu);
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.15rem;
}

.card p {
  color: var(--testo-attenuato);
  flex-grow: 1;
}

.card-link {
  font-weight: 700;
  text-decoration: none;
  color: var(--blu);
}

.card-link:hover {
  text-decoration: underline;
}

.card-primaria {
  background: var(--navy);
  border-color: var(--navy);
  color: #d7e0f2;
}

.card-primaria h3 {
  color: var(--bianco);
}

.card-primaria p {
  color: #b9c7e2;
}

.card-primaria .card-icona,
.card-primaria .card-link {
  color: #8fb4f5;
}

@media (min-width: 980px) {
  .card-larga {
    grid-column: span 2;
  }
}

/* Elenchi con segno di spunta */
.lista-check {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.lista-check li {
  position: relative;
  padding-left: 1.9rem;
  margin-bottom: 0.65rem;
}

.lista-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.32em;
  width: 0.95rem;
  height: 0.55rem;
  border-left: 3px solid var(--blu);
  border-bottom: 3px solid var(--blu);
  transform: rotate(-45deg);
}

.sezione-scura .lista-check li::before {
  border-color: #8fb4f5;
}

/* ==========================================================================
   Numeri / counter
   ========================================================================== */

.statistiche {
  display: grid;
  gap: 1.5rem;
  text-align: center;
}

@media (min-width: 640px) {
  .statistiche {
    grid-template-columns: repeat(3, 1fr);
  }
}

.statistica .numero {
  font-size: clamp(2.3rem, 6vw, 3.4rem);
  font-weight: 800;
  color: var(--bianco);
  line-height: 1.1;
}

.statistica .numero .unita {
  font-size: 0.5em;
  color: #8fb4f5;
  font-weight: 800;
}

.statistica .etichetta {
  margin-top: 0.4rem;
  font-size: 0.95rem;
  color: #b9c7e2;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* ==========================================================================
   Media + testo affiancati
   ========================================================================== */

.media-testo {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .media-testo {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }

  .media-testo.inverti > .media {
    order: 2;
  }
}

.media img {
  border-radius: var(--radius);
  box-shadow: var(--ombra);
  width: 100%;
}

/* ==========================================================================
   Banda CTA
   ========================================================================== */

.cta-banda {
  background: linear-gradient(115deg, var(--blu-scuro), var(--blu));
  color: var(--bianco);
  padding: 3rem 0;
  position: relative;
  overflow: hidden;
}

.cta-banda::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-55deg, rgba(255, 255, 255, 0.06) 0 14px, transparent 14px 42px);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
}

@media (min-width: 900px) {
  .cta-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.cta-banda h2 {
  color: var(--bianco);
  margin: 0 0 0.3em;
}

.cta-banda p {
  margin: 0;
  color: #d7e0f2;
  max-width: 55ch;
}

.cta-banda .btn-primario {
  background: var(--bianco);
  color: var(--blu-scuro);
  white-space: nowrap;
}

.cta-banda .btn-primario:hover {
  background: var(--ghiaccio);
}

/* ==========================================================================
   Contatti
   ========================================================================== */

.blocco-contatto {
  background: var(--bianco);
  border: 1px solid var(--bordo);
  border-left: 4px solid var(--blu);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
}

.blocco-contatto h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.blocco-contatto p {
  margin: 0;
  color: var(--testo-attenuato);
}

.blocco-contatto a {
  font-weight: 600;
}

.mappa {
  border: 0;
  width: 100%;
  height: 340px;
  border-radius: var(--radius);
  box-shadow: var(--ombra);
}

/* Form */
.modulo {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .modulo {
    grid-template-columns: 1fr 1fr;
  }

  .modulo .campo-intero {
    grid-column: 1 / -1;
  }
}

.campo label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--navy);
}

.campo input,
.campo textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--bordo);
  border-radius: var(--radius);
  font: inherit;
  color: var(--testo);
  background: var(--bianco);
  transition: border-color var(--transizione), box-shadow var(--transizione);
}

.campo input:focus,
.campo textarea:focus {
  outline: none;
  border-color: var(--blu);
  box-shadow: 0 0 0 3px rgba(27, 79, 160, 0.18);
}

.campo textarea {
  resize: vertical;
  min-height: 140px;
}

.nota-modulo {
  font-size: 0.85rem;
  color: var(--testo-attenuato);
  margin: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--navy-profondo);
  color: #b9c7e2;
  padding: 3rem 0 0;
  font-size: 0.95rem;
}

.footer-griglia {
  display: grid;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-griglia {
    grid-template-columns: 1.2fr 0.8fr 1fr;
  }
}

.site-footer h3 {
  color: var(--bianco);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin-bottom: 0.55rem;
}

.site-footer a {
  color: #cddcf6;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--bianco);
  text-decoration: underline;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.footer-brand img {
  width: 56px;
  height: 56px;
}

.footer-brand strong {
  color: var(--bianco);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-note {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.2rem 0;
  font-size: 0.85rem;
  color: #7e8db0;
}

.footer-note .container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}

/* ==========================================================================
   Animazioni (attive solo con JS: la classe .js viene aggiunta a <html>)
   ========================================================================== */

.js .rivela {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .rivela.visibile {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .rivela {
    opacity: 1;
    transform: none;
    transition: none;
  }
}