/* ---------------- Self-hosted fonts ---------------- */
/* Archivo Expanded (wdth 125) Medium 500 — titoli */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-stretch: 125%;
  font-display: swap;
  src: url('fonts/archivo-expanded-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-stretch: 125%;
  font-display: swap;
  src: url('fonts/archivo-expanded-500-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Source Sans 3 (variabile: pesi 400 e 600) — corpo testo */
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('fonts/source-sans-3-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('fonts/source-sans-3-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  /* Brand */
  --color-blu-istituzionale:  #003087;
  --color-arancio-operativo:  #E85D00;
  --color-blu-medio:          #1A5276;
  --color-arancio-scuro:      #C24E00;
  --color-blu-ghiaccio:       #F0F4F8;

  /* Testi */
  --color-testo-primario:     #0D1B2A;
  --color-testo-corpo:        #1C2E3F;
  --color-testo-secondario:   #4A6080;
  --color-testo-muted:        #8A9DB0;

  /* Superfici */
  --color-sfondo-primario:    #FFFFFF;
  --color-sfondo-secondario:  #F0F4F8;

  /* Tipografia */
  --font-titolo:   'Archivo', sans-serif;
  --font-corpo:    'Source Sans 3', sans-serif;

  --maxw: 900px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-corpo);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-testo-corpo);
  background: var(--color-sfondo-primario);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img { max-width: 100%; }

/* ---------------- Header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-sfondo-secondario);
}

.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-logo img {
  height: 34px;
  width: auto;
  display: block;
}

/* Language switch */
.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-sfondo-secondario);
  border-radius: 999px;
  overflow: hidden;
  background: var(--color-sfondo-primario);
}

.lang-switch a {
  font-family: var(--font-corpo);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 6px 14px;
  text-decoration: none;
  color: var(--color-testo-secondario);
  transition: background .2s ease, color .2s ease;
}

.lang-switch a:hover { color: var(--color-blu-istituzionale); }

.lang-switch a[aria-current="page"] {
  background: var(--color-blu-istituzionale);
  color: #fff;
}

/* ---------------- Layout ---------------- */
section { padding: 72px 24px; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
}

.overline {
  font-family: var(--font-corpo);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-testo-muted);
  margin-bottom: 14px;
}

h2 {
  font-family: var(--font-titolo);
  font-weight: 500;
  font-stretch: expanded;
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1.2;
  color: var(--color-blu-istituzionale);
  margin-bottom: 24px;
}

h3 {
  font-family: var(--font-titolo);
  font-weight: 500;
  font-stretch: expanded;
  font-size: 16px;
  line-height: 1.3;
  color: var(--color-testo-primario);
  margin-bottom: 8px;
}

p { margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

/* ---------------- Hero ---------------- */
.hero {
  text-align: center;
  padding: 72px 24px 64px;
  background: radial-gradient(circle at 50% 0%, var(--color-sfondo-secondario) 0%, var(--color-sfondo-primario) 65%);
}

.hero .logo {
  width: min(300px, 72vw);
  height: auto;
  margin: 0 auto 26px;
  display: block;
}

.hero .tagline {
  font-family: var(--font-corpo);
  font-weight: 600;
  font-size: clamp(14px, 3vw, 17px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blu-medio);
  margin-bottom: 28px;
}

.hero .intro {
  max-width: 680px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-testo-corpo);
}

/* ---------------- Servizi ---------------- */
.services { background: var(--color-sfondo-secondario); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 8px;
}

.card {
  background: var(--color-sfondo-primario);
  border: 1px solid #E4EAF1;
  border-radius: 14px;
  padding: 26px 26px 28px;
}

.card p {
  color: var(--color-testo-corpo);
  font-size: 15px;
}

/* ---------------- Contatti ---------------- */
.contact-lead {
  font-size: 17px;
  color: var(--color-testo-corpo);
}

.contact-block {
  margin-top: 28px;
  display: grid;
  gap: 4px;
  font-size: 15px;
}

.contact-block .who {
  font-family: var(--font-titolo);
  font-weight: 500;
  font-stretch: expanded;
  font-size: 16px;
  color: var(--color-testo-primario);
  margin-bottom: 6px;
}

.contact-block .muted { color: var(--color-testo-secondario); }

.contact-block .rows {
  margin-top: 18px;
  display: grid;
  gap: 6px;
}

.contact-block .label {
  font-weight: 600;
  color: var(--color-testo-primario);
}

.contact-block a { text-decoration: none; }
.contact-block a:hover { color: var(--color-arancio-scuro); }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--color-blu-istituzionale);
  color: #D8E1EE;
  text-align: center;
  padding: 32px 24px;
  font-size: 12px;
  line-height: 1.6;
}

.site-footer .legal-links { margin-top: 8px; }

.site-footer a {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.4);
}
.site-footer a:hover { border-bottom-color: #fff; }
.site-footer .sep { margin: 0 8px; opacity: 0.5; }

.site-footer .credits {
  margin-top: 12px;
  font-size: 11px;
  opacity: 0.7;
}

/* ---------------- Legal pages ---------------- */
.legal-page { padding: 56px 24px 72px; }

.legal { max-width: 760px; }

.legal h1 {
  font-family: var(--font-titolo);
  font-weight: 500;
  font-stretch: expanded;
  font-size: clamp(24px, 5vw, 30px);
  line-height: 1.2;
  color: var(--color-testo-primario);
  margin-bottom: 8px;
}

.legal .updated {
  color: var(--color-testo-muted);
  font-size: 13px;
  margin-bottom: 32px;
}

.legal h2 {
  font-size: 18px;
  color: var(--color-blu-istituzionale);
  margin: 34px 0 12px;
}

.legal p,
.legal li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-testo-corpo);
}

.legal ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.legal li { margin-bottom: 6px; }

.legal a { color: var(--color-blu-medio); }
.legal a:hover { color: var(--color-arancio-scuro); }

.legal .back-link { margin-top: 32px; }

.legal .contact-card {
  background: var(--color-sfondo-secondario);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 12px 0 8px;
  font-size: 15px;
  line-height: 1.7;
}

.legal .note {
  border-left: 3px solid var(--color-arancio-operativo);
  background: #FFF6EF;
  padding: 14px 16px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
  font-size: 14px;
}

/* ---------------- Error page (404) ---------------- */
.error-page {
  min-height: 68vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 24px;
}

.error-page .code {
  font-family: var(--font-titolo);
  font-weight: 500;
  font-stretch: expanded;
  font-size: clamp(64px, 18vw, 120px);
  line-height: 1;
  color: var(--color-blu-istituzionale);
  margin-bottom: 8px;
}

.error-page h1 {
  font-family: var(--font-titolo);
  font-weight: 500;
  font-stretch: expanded;
  font-size: clamp(20px, 4vw, 26px);
  color: var(--color-testo-primario);
  margin-bottom: 14px;
}

.error-page p {
  color: var(--color-testo-secondario);
  margin-bottom: 6px;
}

.error-page .home-link {
  margin-top: 24px;
  font-weight: 600;
  color: var(--color-blu-medio);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.error-page .home-link:hover {
  color: var(--color-arancio-scuro);
  border-bottom-color: var(--color-arancio-scuro);
}

/* ---------------- Responsive ---------------- */
@media (max-width: 640px) {
  section { padding: 56px 22px; }
  .services-grid { grid-template-columns: 1fr; }
  .header-logo img { height: 30px; }
}