:root {
  --info-bg: #f4f6fb;
  --info-surface: #ffffff;
  --info-border: #d7deeb;
  --info-muted: #5f6b7a;
  --info-text: #1f2a37;
  --info-accent: #1a73e8;
  --info-accent-soft: #e3efff;
  --info-shadow: rgba(26, 115, 232, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.informativa-body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: var(--info-text);
  background: linear-gradient(180deg, #f4f6fb 0%, #eef3fb 55%, #e9f0ff 100%);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  background: #1a73e8;
  color: #ffffff;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 14px 32px rgba(26, 115, 232, 0.35);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 1000;
}

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

.container {
  max-width: 1020px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.75rem);
}

.site-header {
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--info-border);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 18px 40px rgba(26, 115, 232, 0.08);
}

.page-title {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.35rem);
  color: #103b82;
  letter-spacing: -0.01em;
}

.page-subtitle {
  margin: 0.35rem 0 0;
  color: var(--info-muted);
  font-size: 0.95rem;
}

.site-main {
  padding: clamp(1rem, 3vw, 2.5rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.toc {
  background: var(--info-accent-soft);
  border: 1px solid var(--info-border);
  border-radius: 16px;
  padding: clamp(1rem, 3vw, 1.4rem);
  margin: 0 0 clamp(1.2rem, 3vw, 2rem);
  box-shadow: 0 16px 34px rgba(26, 115, 232, 0.08);
}

.toc ol {
  margin: 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 0.45rem;
}

.toc a {
  color: var(--info-accent);
  font-weight: 600;
  text-decoration: none;
}

.toc a:hover {
  text-decoration: underline;
}

.card {
  background: var(--info-surface);
  border: 1px solid var(--info-border);
  border-radius: 18px;
  padding: clamp(1.15rem, 3vw, 1.6rem);
  margin: clamp(1rem, 2.5vw, 1.6rem) 0;
  box-shadow: 0 24px 60px var(--info-shadow);
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  color: #0b3a82;
}

.card-ghost {
  background: rgba(26, 115, 232, 0.04);
  border: 1px dashed rgba(26, 115, 232, 0.25);
  border-radius: 18px;
  padding: clamp(1rem, 3vw, 1.4rem);
  margin-top: 0.85rem;
}

.card-ghost h3 {
  margin-top: 0;
  color: #1352b5;
}

a {
  color: var(--info-accent);
}

a:focus-visible {
  outline: 2px solid var(--info-accent);
  outline-offset: 2px;
  border-radius: 6px;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0.85rem 0 1.2rem;
}

.feature {
  background: linear-gradient(180deg, #ffffff, #f6f9ff);
  border: 1px solid var(--info-border);
  border-radius: 14px;
  padding: 1rem 1.05rem;
  box-shadow: 0 18px 42px rgba(15, 76, 129, 0.08);
}

.feature h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  color: #0f4c81;
}

.plans {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 1.2rem;
}

.plan {
  background: linear-gradient(180deg, #ffffff, #f3f7ff);
  border: 1px solid var(--info-border);
  border-radius: 18px;
  padding: clamp(1rem, 2.6vw, 1.4rem);
  box-shadow: 0 22px 48px rgba(15, 76, 129, 0.12);
}

.plan header {
  margin-bottom: 0.55rem;
}

.plan h3 {
  margin: 0 0 0.25rem;
  font-size: 1.12rem;
  color: #0f4c81;
}

.price {
  margin: 0;
  color: #0f9d58;
}

.price .old {
  color: var(--info-muted);
  text-decoration: line-through;
  margin-left: 0.35rem;
}

.plan ul {
  margin: 0.6rem 0 0 1.15rem;
  padding: 0;
}

.plan li {
  margin-bottom: 0.4rem;
}

.note {
  color: var(--info-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
}

.site-footer {
  border-top: 1px solid var(--info-border);
  background: rgba(255, 255, 255, 0.9);
  color: var(--info-muted);
  font-size: 0.95rem;
  padding: 1rem 0 1.5rem;
  text-align: center;
}

.site-footer .footer-link {
  color: var(--info-accent);
  font-weight: 600;
  text-decoration: none;
}

.site-footer .footer-link:hover {
  text-decoration: underline;
}

@media (max-width: 820px) {
  .features,
  .plans {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
  }
}

@media print {
  .informativa-body {
    background: #ffffff;
    color: #000000;
  }

  .site-header,
  .site-footer,
  .toc,
  .skip-link {
    display: none !important;
  }

  .card,
  .plan,
  .feature {
    box-shadow: none;
    border: 1px solid #cccccc;
    background: #ffffff;
  }
}