/* =========================================================
   NEW TECNO ITALY / LIT'® — Design tokens
   Palette e stile derivati dalle presentazioni ufficiali LIT
   (blocchi diagonali navy -> arancio -> rosso)
   ========================================================= */

:root {
  /* Colori */
  --nti-navy: #0f2c4c;
  --nti-navy-dark: #0a1f38;
  --nti-orange: #e36b2c;
  --nti-red: #b4282e;
  --nti-white: #ffffff;
  --nti-ink: #2b2b2b;
  --nti-grey: #6b7280;
  --nti-grey-light: #f4f5f7;

  /* Gradiente diagonale "firma" del brand */
  --nti-gradient-diag: linear-gradient(135deg, var(--nti-navy) 0%, var(--nti-navy) 45%, var(--nti-orange) 65%, var(--nti-red) 100%);

  /* Tipografia */
  --nti-font-display: "Poppins", "Montserrat", sans-serif;
  --nti-font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* Spaziatura */
  --nti-space-xs: 0.5rem;
  --nti-space-sm: 1rem;
  --nti-space-md: 2rem;
  --nti-space-lg: 4rem;
  --nti-space-xl: 7rem;

  --nti-radius: 4px;
  --nti-container: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--nti-font-body);
  color: var(--nti-ink);
  line-height: 1.6;
  background: var(--nti-white);
}

h1, h2, h3, h4 {
  font-family: var(--nti-font-display);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 var(--nti-space-sm);
  color: var(--nti-navy);
}

h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 var(--nti-space-sm); }

a { color: var(--nti-orange); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--nti-orange); outline-offset: 2px; }

.nti-container {
  max-width: var(--nti-container);
  margin: 0 auto;
  padding: 0 var(--nti-space-md);
}

/* ---------- Header / navigazione ---------- */
.nti-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nti-white);
  border-bottom: 1px solid #eceef1;
}

.nti-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--nti-space-sm) 0;
}

.nti-header__logo img { height: 40px; display: block; }

.nti-nav ul {
  list-style: none;
  display: flex;
  gap: var(--nti-space-md);
  margin: 0;
  padding: 0;
}

.nti-nav a {
  color: var(--nti-navy);
  font-weight: 600;
  font-size: 0.95rem;
}

.nti-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

@media (max-width: 860px) {
  .nti-nav { display: none; }
  .nti-nav.is-open { display: block; }
  .nti-nav ul { flex-direction: column; gap: var(--nti-space-sm); padding: var(--nti-space-sm) 0; }
  .nti-nav-toggle { display: block; }
}

/* ---------- Hero diagonale (elemento firma del brand) ---------- */
.nti-hero {
  position: relative;
  overflow: hidden;
  color: var(--nti-white);
  background: var(--nti-gradient-diag);
  padding: var(--nti-space-xl) 0;
}

.nti-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.nti-hero h1 { color: var(--nti-white); }

.nti-hero__eyebrow {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--nti-white);
  opacity: 0.85;
  margin-bottom: var(--nti-space-xs);
}

.nti-hero__lead { font-size: 1.15rem; opacity: 0.95; max-width: 60ch; }

/* ---------- Sezioni diagonali alternate (pattern del brand) ---------- */
.nti-section { padding: var(--nti-space-lg) 0; }
.nti-section--light { background: var(--nti-white); }
.nti-section--tint { background: var(--nti-grey-light); }

.nti-section--diag {
  position: relative;
  color: var(--nti-white);
  background: var(--nti-gradient-diag);
}
.nti-section--diag h1, .nti-section--diag h2, .nti-section--diag h3 { color: var(--nti-white); }

/* ---------- Card / griglia soluzioni ---------- */
.nti-grid {
  display: grid;
  gap: var(--nti-space-md);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.nti-card {
  background: var(--nti-white);
  border: 1px solid #eceef1;
  border-radius: var(--nti-radius);
  padding: var(--nti-space-md);
}

.nti-card h3 { margin-bottom: var(--nti-space-xs); }

/* ---------- Bottoni ---------- */
.nti-btn {
  display: inline-block;
  font-weight: 700;
  padding: 0.85rem 1.6rem;
  border-radius: var(--nti-radius);
  background: var(--nti-orange);
  color: var(--nti-white);
}
.nti-btn:hover, .nti-btn:focus-visible { background: var(--nti-red); text-decoration: none; }

.nti-btn--outline {
  background: transparent;
  border: 2px solid var(--nti-white);
  color: var(--nti-white);
}
.nti-btn--outline:hover { background: var(--nti-white); color: var(--nti-navy); }

/* ---------- Liste con check (vantaggi) ---------- */
.nti-check-list { list-style: none; margin: 0; padding: 0; }
.nti-check-list li {
  position: relative;
  padding-left: 1.7rem;
  margin-bottom: var(--nti-space-xs);
}
.nti-check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.9rem;
  height: 0.5rem;
  border-left: 2px solid var(--nti-orange);
  border-bottom: 2px solid var(--nti-orange);
  transform: rotate(-45deg);
}

/* ---------- Footer ---------- */
.nti-footer {
  background: var(--nti-navy-dark);
  color: var(--nti-white);
  padding: var(--nti-space-lg) 0 var(--nti-space-md);
}
.nti-footer a { color: var(--nti-white); }
.nti-footer__grid {
  display: grid;
  gap: var(--nti-space-md);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: var(--nti-space-md);
}
.nti-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: var(--nti-space-sm);
  font-size: 0.85rem;
  opacity: 0.8;
}

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