:root{
  --color-ink: #1b1e21;
  --color-primary: #23272b;
  --color-primary-dark: #15171a;
  --color-accent: #e0562c;
  --color-water: #2b7fb8;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f5f6;
  --color-text: #2b2e30;
  --color-muted: #626a6e;
  --color-border: #e3e5e6;
  --font-head: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --radius: 14px;
  --shadow: 0 10px 30px -12px rgba(20, 22, 24, 0.25);
  --container: 1160px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3{ font-family: var(--font-head); color: var(--color-ink); line-height: 1.15; margin: 0 0 .5em; }
p{ margin: 0 0 1em; }
ul{ margin: 0; padding: 0; list-style: none; }

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link{
  position: absolute; left: -999px; top: 0;
  background: var(--color-primary); color: #fff; padding: 10px 16px; z-index: 200;
}
.skip-link:focus{ left: 12px; top: 12px; }

/* HEADER */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}
.header-inner{
  display: flex; align-items: center; gap: 20px;
  height: 76px;
}
.brand{ display:flex; align-items:center; gap: 12px; flex-shrink: 0; }
.brand-logo{ height: 56px; width: auto; object-fit: contain; }
.brand-name{
  font-family: var(--font-head); font-weight: 700; font-size: 1.25rem;
  color: var(--color-ink); white-space: nowrap;
}

.main-nav{ margin-left: auto; }
.main-nav ul{ display: flex; align-items: center; gap: 28px; }
.main-nav a{
  font-family: var(--font-head); font-weight: 500; font-size: 0.95rem;
  color: var(--color-ink); position: relative; padding: 6px 0;
}
.main-nav a:hover{ color: var(--color-primary); }
.main-nav .nav-cta{
  background: var(--color-primary); color: #fff; padding: 10px 18px; border-radius: 999px;
}
.main-nav .nav-cta:hover{ background: var(--color-primary-dark); color: #fff; }

.header-phone{
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-weight: 600; font-size: .95rem;
  color: var(--color-primary); margin-left: 8px; white-space: nowrap;
}
.header-phone .icon{ width: 18px; height: 18px; }

.nav-toggle{
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; background: none; border: none; cursor: pointer; margin-left: 8px;
}
.nav-toggle span{ display:block; width: 22px; height: 2px; background: var(--color-ink); border-radius: 2px; }

/* HERO */
.hero{ position: relative; color: #fff; overflow: hidden; }
.hero-media{ position: absolute; inset: 0; }
.hero-media img{ width: 100%; height: 100%; object-fit: cover; }
.hero-overlay{
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(16,18,20,0.92) 10%, rgba(18,22,26,0.75) 55%, rgba(18,22,26,0.45) 100%);
}
.hero-content{
  position: relative; z-index: 2;
  padding: 130px 24px 100px;
  max-width: 720px;
}
.eyebrow{
  text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 600;
  color: #8fc9e8; margin-bottom: 14px;
}
.hero h1{ color: #fff; font-size: clamp(2.1rem, 4.5vw, 3.4rem); margin-bottom: 20px; }
.hero-lead{ font-size: 1.1rem; color: #dfe4e7; max-width: 560px; }
.hero-actions{ display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

.btn{
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 600; font-size: .95rem;
  padding: 14px 26px; border-radius: 999px; transition: transform .15s ease, background .15s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background: var(--color-accent); color: #fff; }
.btn-primary:hover{ background: #b8431d; color: #fff; }
.btn-ghost{ background: rgba(255,255,255,0.12); color: #fff; border: 1px solid rgba(255,255,255,0.5); }
.btn-ghost:hover{ background: rgba(255,255,255,0.22); color:#fff; }

/* SECTIONS */
.section{ padding: 90px 0; }
.section-alt{ background: var(--color-bg-alt); }
.section-tag{
  text-transform: uppercase; letter-spacing: .1em; font-size: .8rem; font-weight: 700;
  color: var(--color-primary); margin-bottom: 10px;
}
.section-head{ max-width: 640px; margin: 0 auto 56px; text-align: center; }
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.3rem); }
.section-sub{ color: var(--color-muted); margin: 0; }

.split{ display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-reverse .split-text{ order: 2; }
.split-reverse .split-media{ order: 1; }
.split-text h2{ font-size: clamp(1.6rem, 3vw, 2.2rem); }
.split-text .section-tag{ margin-bottom: 12px; }
.split-media img{ border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 420px; object-fit: cover; }

/* SERVIZI */
.cards-grid{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.card{
  background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius);
  padding: 32px 26px; transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover{ transform: translateY(-4px); box-shadow: var(--shadow); }
.card-icon{
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 12px; margin-bottom: 18px;
  background: rgba(35, 39, 43, 0.08); color: var(--color-primary);
}
.card-icon svg{ width: 26px; height: 26px; }
.card h3{ font-size: 1.08rem; margin-bottom: 8px; }
.card p{ color: var(--color-muted); font-size: .95rem; margin: 0; }
.card-wide{ grid-column: span 1; }

/* PERCHE NOI */
.reasons-grid{
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
}
.reason{ padding: 8px; }
.reason-number{
  display: block; font-family: var(--font-head); font-weight: 800; font-size: 1.6rem;
  color: rgba(35, 39, 43, 0.25); margin-bottom: 10px;
}
.reason h3{ font-size: 1.05rem; margin-bottom: 8px; }
.reason p{ color: var(--color-muted); font-size: .95rem; margin: 0; }

/* ZONA */
.zona-media{ display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; color: var(--color-primary); }
.zona-graphic{ width: 100%; max-width: 300px; height: auto; }
.zona-label{ font-family: var(--font-head); font-weight: 700; letter-spacing: .04em; color: var(--color-ink); }
.tag-list{ display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tag-list li{
  background: #fff; border: 1px solid var(--color-border); border-radius: 999px;
  padding: 8px 16px; font-size: .88rem; font-weight: 500; color: var(--color-ink);
}

/* GALLERIA */
.gallery-grid{
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.gallery-item{
  position: relative; padding: 0; border: none; cursor: pointer; border-radius: 10px; overflow: hidden;
  aspect-ratio: 4 / 3; background: var(--color-bg-alt);
}
.gallery-item img{ width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.gallery-item:hover img{ transform: scale(1.07); }
.gallery-item::after{
  content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.35) 100%);
  opacity: 0; transition: opacity .2s ease;
}
.gallery-item:hover::after{ opacity: 1; }

/* CONTATTI */
.contact-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card{
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius);
  padding: 28px; transition: transform .18s ease, box-shadow .18s ease;
}
a.contact-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow); }
.contact-icon{
  width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: rgba(224, 122, 44, 0.12); color: var(--color-accent); margin-bottom: 10px;
}
.contact-icon svg{ width: 24px; height: 24px; }
.contact-label{ font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--color-muted); }
.contact-value{ font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; color: var(--color-ink); }

/* FOOTER */
.site-footer{ background: var(--color-primary-dark); color: #dde1e3; }
.footer-inner{
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px;
  padding: 56px 24px 40px; align-items: start;
}
.footer-logo{ height: 48px; width: auto; border-radius: 6px; margin-bottom: 14px; background: #fff; padding: 4px 8px; }
.footer-brand-name{ font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; color: #fff; margin: 0 0 6px; }
.footer-brand p{ color: #a6acaf; max-width: 320px; }
.footer-info p{ margin: 0 0 8px; color: #ccd2d4; }
.footer-info a{ color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.footer-piva{ margin-top: 14px !important; font-weight: 600; color: #fff !important; }
.footer-bottom{ border-top: 1px solid rgba(255,255,255,0.12); padding: 18px 0; }
.footer-bottom p{ margin: 0; font-size: .82rem; color: #979d9f; text-align: center; }

/* BACK TO TOP */
.back-to-top{
  position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity .2s ease, transform .2s ease; z-index: 90;
}
.back-to-top.visible{ opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top svg{ width: 20px; height: 20px; }

/* LIGHTBOX */
.lightbox{
  position: fixed; inset: 0; background: rgba(10,11,12,0.94); z-index: 200;
  display: none; align-items: center; justify-content: center; padding: 40px;
}
.lightbox.open{ display: flex; }
body.lightbox-active .site-header{ visibility: hidden; }
.lightbox img{ max-width: 90vw; max-height: 85vh; border-radius: 8px; }
.lightbox-close{
  position: absolute; top: 20px; right: 26px; background: none; border: none; color: #fff;
  font-size: 2.2rem; line-height: 1; cursor: pointer;
}
.lightbox-nav{
  position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.1);
  border: none; color: #fff; width: 48px; height: 48px; border-radius: 50%; font-size: 1.8rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.lightbox-nav:hover{ background: rgba(255,255,255,0.22); }
.lightbox-prev{ left: 18px; }
.lightbox-next{ right: 18px; }

/* RESPONSIVE */
@media (max-width: 980px){
  .cards-grid{ grid-template-columns: repeat(2, 1fr); }
  .reasons-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid{ grid-template-columns: repeat(3, 1fr); }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }
}

@media (max-width: 800px){
  .main-nav{
    position: fixed; inset: 76px 0 0 0; background: #fff; padding: 24px;
    transform: translateX(100%); transition: transform .25s ease; overflow-y: auto;
  }
  .main-nav.open{ transform: translateX(0); }
  .main-nav ul{ flex-direction: column; align-items: flex-start; gap: 4px; }
  .main-nav a{ display: block; padding: 14px 4px; width: 100%; border-bottom: 1px solid var(--color-border); }
  .main-nav .nav-cta{ margin-top: 12px; text-align: center; }
  .header-phone span{ display: none; }
  .nav-toggle{ display: flex; }

  .split, .split-reverse{ grid-template-columns: 1fr; gap: 32px; }
  .split-reverse .split-text, .split-reverse .split-media{ order: initial; }
  .split-media img{ height: 260px; }

  .cards-grid{ grid-template-columns: 1fr; }
  .reasons-grid{ grid-template-columns: 1fr; }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }

  .hero-content{ padding: 110px 20px 70px; }
}

@media (max-width: 480px){
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .section{ padding: 64px 0; }
  .brand-name{ font-size: 1.05rem; }
}