:root {
  --ink: #071426;
  --navy: #0a2342;
  --blue: #1769aa;
  --cyan: #1bb7d8;
  --yellow: #f5c542;
  --paper: #f5f8fb;
  --white: #ffffff;
  --muted: #5d6b79;
  --line: #d8e1e9;
  --shadow: 0 18px 46px rgba(7, 20, 38, .12);
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

img { display: block; width: 100%; height: auto; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 999;
  padding: .65rem 1rem;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid rgba(7,20,38,.08);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: -.025em;
}

.brand-text { display: grid; line-height: 1.05; }
.brand-text small { margin-top: 4px; color: var(--blue); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  padding: .62rem .92rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: .92rem;
  font-weight: 750;
}
.main-nav a:hover, .main-nav a:focus-visible, .main-nav a[aria-current="page"] { background: #e8f4fa; color: var(--blue); }
.nav-contact { background: var(--ink) !important; color: var(--white) !important; }

.menu-button { display: none; border: 0; background: transparent; padding: 10px; cursor: pointer; }
.menu-button span { display: block; width: 26px; height: 2px; margin: 5px 0; background: var(--ink); }

.hero {
  min-height: 660px;
  display: grid;
  align-items: center;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(4,17,33,.96) 0%, rgba(4,17,33,.78) 48%, rgba(4,17,33,.3) 100%),
    url("img/hero-sicurezza.jpg") center/cover no-repeat;
}

.hero-content { max-width: 760px; padding: 90px 0; }
.eyebrow { margin: 0 0 18px; color: var(--cyan); font-weight: 850; letter-spacing: .16em; text-transform: uppercase; font-size: .78rem; }
h1, h2, h3 { margin: 0; line-height: 1.08; }
h1 { font-size: clamp(2.7rem, 7vw, 5.9rem); letter-spacing: -.06em; max-width: 820px; }
h2 { font-size: clamp(2rem, 4.8vw, 3.7rem); letter-spacing: -.045em; }
h3 { font-size: 1.35rem; letter-spacing: -.02em; }
.hero-lead { max-width: 600px; margin: 24px 0 32px; color: #dbe8f4; font-size: clamp(1.05rem, 2vw, 1.25rem); }

.button-row { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: .75rem 1.2rem;
  border: 2px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 850;
}
.button-primary { background: var(--yellow); color: var(--ink); }
.button-primary:hover, .button-primary:focus-visible { background: #ffd866; }
.button-ghost { border-color: rgba(255,255,255,.5); color: var(--white); }
.button-dark { background: var(--ink); color: var(--white); }

.section { padding: 96px 0; }
.section-soft { background: var(--paper); }
.section-dark { background: var(--ink); color: var(--white); }
.section-heading { max-width: 760px; margin-bottom: 44px; }
.section-heading p:last-child { margin-bottom: 0; color: var(--muted); font-size: 1.08rem; }
.section-dark .section-heading p:last-child { color: #aebdcb; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 12px 30px rgba(7,20,38,.07); }
.service-card img { aspect-ratio: 16 / 10; object-fit: cover; }
.service-card-body { padding: 26px; }
.service-number { color: var(--blue); font-weight: 900; font-size: .78rem; letter-spacing: .12em; }
.service-card p { margin-bottom: 0; color: var(--muted); }

.split { display: grid; grid-template-columns: 1.04fr .96fr; gap: 64px; align-items: center; }
.split-media { position: relative; }
.split-media img { aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }
.signal-card {
  position: absolute;
  right: -24px;
  bottom: -24px;
  max-width: 250px;
  padding: 22px;
  color: var(--white);
  background: var(--blue);
  border-radius: 18px;
  box-shadow: var(--shadow);
  font-weight: 760;
}

.check-list { list-style: none; margin: 28px 0; padding: 0; }
.check-list li { position: relative; margin: 12px 0; padding-left: 30px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .55em; width: 12px; height: 7px; border-left: 3px solid var(--cyan); border-bottom: 3px solid var(--cyan); transform: rotate(-45deg); }

.cta-strip { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.cta-strip h2 { max-width: 760px; }

.site-footer { padding: 54px 0 26px; color: #c7d2de; background: #030c17; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; }
.footer-title { margin: 0 0 12px; color: var(--white); font-weight: 850; }
.footer-grid p { margin: 6px 0; }
.footer-grid a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); color: #8fa0b0; font-size: .86rem; }

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 92px;
  color: var(--white);
  background: var(--ink);
}
.page-hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  top: -190px;
  border: 70px solid rgba(27,183,216,.2);
  border-radius: 50%;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero p:last-child { max-width: 680px; margin: 22px 0 0; color: #c8d7e5; font-size: 1.15rem; }

.news-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: stretch; }
.news-main, .news-side { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.news-main img { aspect-ratio: 16 / 9; object-fit: cover; }
.news-side { align-self: start; padding: 18px; }
.news-side img { height: auto; min-height: 0; object-fit: contain; border-radius: 14px; }
.news-copy { padding: 34px; }
.news-copy p { color: var(--muted); }
.spec-list { display: grid; gap: 12px; margin: 26px 0 0; padding: 0; list-style: none; }
.spec-list li { padding: 15px 18px; background: var(--paper); border-left: 4px solid var(--cyan); border-radius: 0 10px 10px 0; }

.contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.contact-panel { overflow: hidden; border-radius: var(--radius); color: var(--white); background: var(--navy); box-shadow: var(--shadow); }
.contact-panel img { aspect-ratio: 16 / 10; object-fit: cover; opacity: .75; }
.contact-panel-content { padding: 32px; }
.contact-list { display: grid; gap: 18px; margin-top: 28px; }
.contact-item { display: grid; gap: 2px; }
.contact-item span { color: #8fdcf0; font-size: .75rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.contact-item a { color: var(--white); text-underline-offset: 4px; }

.contact-form { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: grid; gap: 8px; }
.field-full { grid-column: 1 / -1; }
.field label { font-weight: 780; }
.field input, .field select, .field textarea {
  width: 100%;
  min-height: 50px;
  padding: .75rem .9rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid #bdcad5;
  border-radius: 10px;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 3px solid rgba(27,183,216,.22); border-color: var(--blue); }
.check-field { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-size: .92rem; }
.check-field input { width: 20px; height: 20px; flex: 0 0 auto; margin-top: 3px; accent-color: var(--blue); }
.form-note { color: var(--muted); font-size: .86rem; }
.form-status { margin: 0 0 24px; padding: 14px 18px; border-radius: 10px; font-weight: 750; }
.form-status-success { color: #0f5132; background: #d1e7dd; border: 1px solid #badbcc; }
.form-status-error { color: #842029; background: #f8d7da; border: 1px solid #f5c2c7; }
.hp-field { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }

.error-page { min-height: 100vh; display: grid; place-items: center; padding: 40px 0; color: var(--white); background: var(--ink); }
.error-card { width: min(calc(100vw - 32px), 720px); padding: 50px; text-align: center; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); background: rgba(255,255,255,.04); }
.error-code { color: var(--cyan); font-size: clamp(5rem, 18vw, 10rem); font-weight: 950; letter-spacing: -.08em; line-height: .8; }
.error-card p { margin: 24px auto 30px; max-width: 520px; color: #c8d7e5; }

@media (max-width: 860px) {
  .menu-button { display: block; }
  .main-nav { position: absolute; inset: 78px 20px auto; display: none; padding: 16px; flex-direction: column; align-items: stretch; background: var(--white); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
  .main-nav.is-open { display: flex; }
  .main-nav a { text-align: center; }
  .hero { min-height: 600px; background-position: 42% center; }
  .service-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 42px; }
  .signal-card { right: 18px; bottom: -24px; }
  .cta-strip { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .news-grid, .contact-layout { grid-template-columns: 1fr; }
  .news-side img { min-height: 0; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .brand-text { font-size: .9rem; }
  .brand-text small { font-size: .6rem; }
  .hero { min-height: 640px; }
  .hero-content { padding: 72px 0; }
  .section { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .form-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .contact-form, .error-card { padding: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}