/* IngressoDigitale - Stili custom
   Filosofia: minimal, professionale, leggibile.
   Palette: blu istituzionale + accento ambra.
   Mobile-first, system font stack per performance. */

:root {
  --c-blu: #0b3d91;        /* blu istituzionale, vicino allo SPID ufficiale */
  --c-blu-scuro: #08316f;
  --c-blu-tenue: #e8eef9;
  --c-ambra: #f59e0b;
  --c-grigio-90: #1a1f2e;
  --c-grigio-60: #4b5566;
  --c-grigio-30: #aab1bf;
  --c-grigio-10: #edeff4;
  --c-bianco: #ffffff;
  --c-verde: #047857;
  --c-rosso: #b91c1c;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(11,61,145,.06), 0 1px 3px rgba(11,61,145,.04);
  --shadow-md: 0 4px 6px -1px rgba(11,61,145,.08), 0 2px 4px -1px rgba(11,61,145,.04);
  --shadow-lg: 0 10px 20px -3px rgba(11,61,145,.10), 0 4px 6px -2px rgba(11,61,145,.05);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--c-grigio-90);
  background: var(--c-bianco);
  line-height: 1.6;
  margin: 0;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--c-blu); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--c-blu-scuro); }

h1, h2, h3, h4 { color: var(--c-grigio-90); line-height: 1.2; margin-top: 0; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(1.875rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 1.25rem; }
.container-narrow { max-width: 820px; margin: 0 auto; padding: 0 1.25rem; }

/* HEADER */
.site-header {
  background: var(--c-bianco);
  border-bottom: 1px solid var(--c-grigio-10);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.25rem;
  max-width: 1140px;
  margin: 0 auto;
  gap: 1rem;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  text-decoration: none;
  color: var(--c-grigio-90);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.01em;
}
.site-logo .mark {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--c-blu) 0%, var(--c-blu-scuro) 100%);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
}
.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0; padding: 0;
}
.site-nav a {
  color: var(--c-grigio-60);
  text-decoration: none;
  font-size: .95rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--c-blu); }
.site-nav .cta-nav {
  background: var(--c-blu);
  color: #fff;
  padding: .55rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
}
.site-nav .cta-nav:hover { background: var(--c-blu-scuro); color: #fff; }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--c-grigio-10);
  border-radius: 6px;
  padding: .4rem .6rem;
  cursor: pointer;
}

@media (max-width: 860px) {
  .menu-toggle { display: inline-flex; align-items: center; gap: .4rem; }
  .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--c-grigio-10); padding: 1rem 1.25rem; box-shadow: var(--shadow-md); }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: .75rem; }
}

/* BREADCRUMB */
.breadcrumb {
  font-size: .85rem;
  color: var(--c-grigio-60);
  padding: 1rem 0 0;
}
.breadcrumb ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .35rem; }
.breadcrumb li + li::before { content: "›"; margin-right: .35rem; color: var(--c-grigio-30); }
.breadcrumb a { color: var(--c-grigio-60); text-decoration: none; }
.breadcrumb a:hover { color: var(--c-blu); text-decoration: underline; }
.breadcrumb [aria-current="page"] { color: var(--c-grigio-90); font-weight: 500; }

/* HERO */
.hero {
  background: linear-gradient(180deg, var(--c-blu-tenue) 0%, #fff 100%);
  padding: 3rem 0 3.5rem;
}
.hero h1 { margin-bottom: 1rem; }
.hero p.lead {
  font-size: 1.125rem;
  color: var(--c-grigio-60);
  max-width: 720px;
  margin: 0 0 1.5rem;
}
.hero .badges {
  display: flex; gap: .5rem; flex-wrap: wrap;
  margin: 1.5rem 0 0;
}
.hero .badge {
  background: #fff;
  border: 1px solid var(--c-grigio-10);
  color: var(--c-grigio-90);
  padding: .35rem .75rem;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 500;
  display: inline-flex; align-items: center; gap: .4rem;
}
.hero .badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--c-verde); display: inline-block; }

/* BOTTONI */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background-color .15s, transform .05s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--c-blu); color: #fff; }
.btn-primary:hover { background: var(--c-blu-scuro); color: #fff; }
.btn-secondary { background: #fff; color: var(--c-blu); border-color: var(--c-blu); }
.btn-secondary:hover { background: var(--c-blu-tenue); color: var(--c-blu); }
.btn-ghost { background: transparent; color: var(--c-grigio-90); }
.btn-ghost:hover { background: var(--c-grigio-10); }

.cta-row { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }

/* SEZIONI */
section { padding: 3rem 0; }
section + section { border-top: 1px solid var(--c-grigio-10); }
section.muted { background: #f8fafc; }
section h2 { margin-bottom: 1rem; }
section .subtitle { color: var(--c-grigio-60); max-width: 720px; margin: 0 0 2rem; font-size: 1.05rem; }

/* GRID CARDS */
.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--c-grigio-10);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .15s, transform .15s;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card h3 { margin: 0 0 .5rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--c-grigio-60); font-size: .95rem; }
.card .icon {
  width: 44px; height: 44px;
  border-radius: 8px;
  background: var(--c-blu-tenue);
  color: var(--c-blu);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: .85rem;
  font-size: 1.25rem;
  font-weight: 700;
}
.card a { color: var(--c-blu); font-weight: 600; text-decoration: none; }
.card a:hover { text-decoration: underline; }

/* LISTE */
ul.checklist { list-style: none; padding: 0; margin: 1rem 0; }
ul.checklist li {
  padding: .35rem 0 .35rem 1.65rem;
  position: relative;
  color: var(--c-grigio-90);
}
ul.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: .65rem;
  width: 1.1rem; height: 1.1rem;
  background: var(--c-blu-tenue);
  border-radius: 50%;
}
ul.checklist li::after {
  content: "";
  position: absolute;
  left: .3rem; top: .85rem;
  width: .5rem; height: .25rem;
  border-left: 2px solid var(--c-blu);
  border-bottom: 2px solid var(--c-blu);
  transform: rotate(-45deg);
}

/* STEP */
.steps { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); counter-reset: step; }
.step {
  background: #fff;
  border: 1px solid var(--c-grigio-10);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -14px; left: 1rem;
  background: var(--c-blu);
  color: #fff;
  width: 28px; height: 28px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: .9rem;
}
.step h3 { margin: .25rem 0 .5rem; font-size: 1.05rem; }
.step p { margin: 0; color: var(--c-grigio-60); font-size: .92rem; }

/* CODE */
pre, code { font-family: var(--font-mono); }
pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  overflow-x: auto;
  font-size: .875rem;
  line-height: 1.55;
  margin: 1rem 0;
}
code { background: var(--c-grigio-10); padding: .1rem .35rem; border-radius: 4px; font-size: .9em; }
pre code { background: transparent; padding: 0; color: inherit; }

/* TABELLE */
.table-wrap { overflow-x: auto; margin: 1rem 0; }
table.cmp {
  width: 100%;
  border-collapse: collapse;
  font-size: .94rem;
  background: #fff;
}
table.cmp th, table.cmp td {
  border: 1px solid var(--c-grigio-10);
  padding: .65rem .85rem;
  text-align: left;
  vertical-align: top;
}
table.cmp th { background: var(--c-blu-tenue); font-weight: 600; }
table.cmp tr:nth-child(even) td { background: #fafbfd; }

/* CTA BOX */
.cta-box {
  background: linear-gradient(135deg, var(--c-blu) 0%, var(--c-blu-scuro) 100%);
  color: #fff;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
}
.cta-box h2, .cta-box h3 { color: #fff; margin: 0 0 .75rem; }
.cta-box p { color: rgba(255,255,255,.85); margin: 0 0 1.25rem; }
.cta-box .btn-primary { background: var(--c-ambra); color: #1a1f2e; }
.cta-box .btn-primary:hover { background: #d97706; color: #fff; }
.cta-box .btn-secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.cta-box .btn-secondary:hover { background: rgba(255,255,255,.1); color: #fff; }

/* ECOSISTEMA ORDIX */
.ecosistema-ordix {
  background: #f8fafc;
  border-top: 1px solid var(--c-grigio-10);
  border-bottom: 1px solid var(--c-grigio-10);
  padding: 1.25rem 0;
  font-size: .92rem;
}
.ecosistema-ordix p { margin: 0; color: var(--c-grigio-60); text-align: center; }
.ecosistema-ordix strong { color: var(--c-blu); }
.ecosistema-ordix a { color: var(--c-blu); font-weight: 600; }

/* FOOTER */
.site-footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 3rem 0 1.5rem;
}
.site-footer h4 { color: #fff; font-size: .95rem; margin: 0 0 .85rem; text-transform: uppercase; letter-spacing: .03em; }
.site-footer a { color: #cbd5e1; text-decoration: none; font-size: .92rem; display: block; padding: .25rem 0; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #1e293b;
}
.site-footer .bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: .85rem;
  color: #94a3b8;
}
.site-footer .bottom a { display: inline; }

/* FORM */
.form-grid { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
label { display: block; font-weight: 600; margin: 0 0 .35rem; font-size: .9rem; }
input[type=text], input[type=email], input[type=tel], select, textarea {
  width: 100%;
  padding: .65rem .8rem;
  border: 1px solid var(--c-grigio-30);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--c-grigio-90);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--c-blu);
  outline-offset: 1px;
  border-color: var(--c-blu);
}
textarea { min-height: 130px; resize: vertical; }
.required { color: var(--c-rosso); }
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

.alert { padding: .85rem 1rem; border-radius: var(--radius); margin: 1rem 0; font-size: .95rem; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* FAQ */
details.faq {
  border: 1px solid var(--c-grigio-10);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: .65rem 0;
  background: #fff;
}
details.faq summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--c-blu); transition: transform .2s; }
details.faq[open] summary::after { content: "−"; }
details.faq p { margin: .75rem 0 0; color: var(--c-grigio-60); }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  max-width: 520px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--c-grigio-10);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.25rem;
  z-index: 1000;
  display: none;
  font-size: .9rem;
}
.cookie-banner.show { display: block; }
.cookie-banner h4 { margin: 0 0 .5rem; }
.cookie-banner .actions { display: flex; gap: .5rem; margin-top: .75rem; flex-wrap: wrap; }
.cookie-banner .btn { padding: .5rem .85rem; font-size: .9rem; }

/* PERSONA GRID */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}
.persona {
  background: #fff;
  border: 1px solid var(--c-grigio-10);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  text-decoration: none;
  color: var(--c-grigio-90);
  transition: border-color .15s, box-shadow .15s;
}
.persona:hover { border-color: var(--c-blu); box-shadow: var(--shadow-md); color: var(--c-grigio-90); }
.persona .ico { width: 40px; height: 40px; background: var(--c-blu-tenue); color: var(--c-blu); border-radius: 8px; margin: 0 auto .5rem; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.persona strong { display: block; font-size: .95rem; }
.persona span { display: block; font-size: .82rem; color: var(--c-grigio-60); margin-top: .25rem; }

/* SKIP LINK */
.skip-link {
  position: absolute;
  left: -10000px;
  top: auto;
  background: var(--c-blu);
  color: #fff;
  padding: .5rem 1rem;
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* HELPERS */
.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; }

/* Reduce-motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}