/* Palette dal logo: navy #101B3E, teal #1FBECD. */
:root {
  --navy: #101b3e;
  --navy-soft: #1b2b56;
  --teal: #1fbecd;
  --teal-dark: #148d99;
  --ink: #1c2333;
  --muted: #5c6784;
  --line: #e3e7f0;
  --bg: #ffffff;
  --bg-alt: #f6f8fc;
  --wrap: 1120px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--teal-dark);
}

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

.wrap.narrow {
  max-width: 820px;
}

/* ---------- header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand img {
  display: block;
  height: 44px;
  width: auto;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.nav a {
  color: var(--navy);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}

.nav a:hover {
  color: var(--teal-dark);
}

/* ---------- hero ---------- */
.hero {
  background:
    radial-gradient(
      1000px 420px at 50% -120px,
      rgba(31, 190, 205, 0.16),
      transparent 70%
    ),
    var(--bg-alt);
  border-bottom: 1px solid var(--line);
  padding: 84px 0 92px;
  text-align: center;
}

.hero-logo {
  width: 168px;
  height: auto;
  margin: 0 auto 12px;
  display: block;
}

.hero h1 {
  margin: 0 auto 20px;
  max-width: 760px;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--navy);
}

.lede {
  margin: 0 auto 32px;
  max-width: 680px;
  font-size: 18px;
  color: var(--muted);
}

.btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 30px;
  border-radius: 999px;
}

.btn:hover {
  background: var(--teal-dark);
}

/* ---------- sezioni ---------- */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -0.015em;
  color: var(--navy);
}

.section-lede {
  margin: 0 0 40px;
  max-width: 660px;
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
}

.card h3 {
  margin: 10px 0 10px;
  font-size: 19px;
  color: var(--navy);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

.kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal-dark);
  background: rgba(31, 190, 205, 0.12);
  padding: 4px 10px;
  border-radius: 999px;
}

/* ---------- elenco documenti ---------- */
.doc-list {
  display: grid;
  gap: 12px;
}

.doc-row {
  display: grid;
  gap: 4px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 22px;
  text-decoration: none;
  color: inherit;
}

.doc-row:hover {
  border-color: var(--teal);
}

.doc-cat {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.doc-title {
  font-weight: 650;
  font-size: 17px;
  color: var(--navy);
}

.doc-meta {
  font-size: 14px;
  color: var(--muted);
}

/* ---------- pagina legale ---------- */
.legal {
  padding: 48px 0 88px;
}

.back {
  display: inline-block;
  margin-bottom: 26px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.legal h1 {
  margin: 6px 0 6px;
  font-size: clamp(26px, 4vw, 38px);
  letter-spacing: -0.015em;
  color: var(--navy);
}

.legal > .wrap > .doc-meta {
  margin: 0 0 34px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.prose {
  font-size: 16.5px;
}

.prose h2 {
  margin: 46px 0 14px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.prose h3 {
  margin: 32px 0 10px;
  font-size: 19px;
  color: var(--navy-soft);
}

.prose h4 {
  margin: 24px 0 8px;
  font-size: 17px;
  color: var(--navy-soft);
}

.prose p,
.prose li {
  color: #2b3448;
}

.prose ul,
.prose ol {
  padding-left: 22px;
}

.prose li {
  margin: 6px 0;
}

.prose strong {
  color: var(--navy);
}

.prose hr {
  margin: 40px 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.prose blockquote {
  margin: 24px 0;
  padding: 4px 20px;
  border-left: 3px solid var(--teal);
  background: var(--bg-alt);
  color: var(--muted);
}

.prose table {
  width: 100%;
  margin: 22px 0;
  border-collapse: collapse;
  font-size: 15px;
  /* I documenti contengono tabelle larghe (fornitori, tariffe): su schermi
     stretti scorrono invece di sfondare il layout. */
  display: block;
  overflow-x: auto;
}

.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 10px 13px;
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--bg-alt);
  color: var(--navy);
  font-weight: 650;
}

.prose code {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 0.9em;
}

/* ---------- footer ---------- */
.footer {
  background: var(--navy);
  color: #c3cbdf;
  padding: 60px 0 0;
  font-size: 15px;
}

.foot-grid {
  display: grid;
  gap: 36px;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  padding-bottom: 48px;
}

.foot-logo {
  height: 76px;
  width: auto;
  margin-bottom: 14px;
  /* Il logo è navy su fondo chiaro: sul footer scuro va invertito. */
  background: #fff;
  border-radius: 10px;
  padding: 8px 12px;
}

.foot-note {
  margin: 0;
  line-height: 1.75;
  font-size: 14px;
}

.footer h3 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
}

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

.footer li {
  margin: 9px 0;
}

.footer a {
  color: #c3cbdf;
  text-decoration: none;
  font-size: 14.5px;
}

.footer a:hover {
  color: var(--teal);
}

.foot-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 22px;
  padding-bottom: 26px;
  font-size: 13.5px;
  color: #8f9ab8;
}

@media (max-width: 860px) {
  .foot-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .header-inner {
    flex-direction: column;
    gap: 10px;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .nav {
    gap: 18px;
  }

  .hero {
    padding: 56px 0 64px;
  }

  .foot-grid {
    grid-template-columns: 1fr;
  }
}