/* ============================================================
   MetriTek — Guida utente in linea (pagina di documentazione)
   ============================================================ */
:root {
  --guide-sidebar-w: 300px;
  --guide-code-bg: #0f172a;
  --guide-border: #e5e7eb;
  --guide-muted: #6b7280;
}

/* Layout a due colonne: sidebar sticky + contenuto */
.guide {
  display: grid;
  grid-template-columns: var(--guide-sidebar-w) minmax(0, 1fr);
  gap: 40px;
  max-width: 1240px;
  margin: 0 auto;
  align-items: start;
}
.guide__aside {
  position: sticky;
  top: calc(var(--navbar-h) + 16px);
  max-height: calc(100vh - var(--navbar-h) - 32px);
  overflow: auto;
  padding: 4px 0 24px;
}
.guide__aside-title {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted, #6b7280);
  margin: 0 0 8px;
}
.guide__nav { list-style: none; margin: 0; padding: 0; }
.guide__nav li { margin: 0; }
.guide__nav a {
  display: block;
  padding: 5px 10px;
  font-size: 13.5px;
  color: #374151;
  text-decoration: none;
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: background .15s, color .15s, border .15s;
}
.guide__nav a:hover { background: #eef2ff; color: var(--primary, #2563EB); }
.guide__nav .is-active { background: #eef2ff; color: var(--primary, #2563EB); border-left-color: var(--primary, #2563EB); font-weight: 600; }
.guide__nav .guide__nav-sub { padding-left: 24px; font-size: 13px; }

/* Contenuto */
.guide__content { min-width: 0; padding: 8px 0 60px; }
.guide__hero { margin-bottom: 28px; }
.guide__hero h1 {
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.15;
  margin: 0 0 10px;
  color: var(--heading-color, #111827);
}
.guide__hero p { color: var(--guide-muted); font-size: 16px; max-width: 70ch; margin: 0; }

.guide__section { margin-bottom: 44px; scroll-margin-top: calc(var(--navbar-h) + 16px); }
.guide__section > h2 {
  font-size: 24px;
  line-height: 1.25;
  color: var(--heading-color, #111827);
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--guide-border);
}
.guide__section > h3 {
  font-size: 18px;
  color: var(--heading-color, #111827);
  margin: 26px 0 8px;
}
.guide__section p { font-size: 15px; line-height: 1.7; color: #1f2937; margin: 8px 0; }
.guide__section ul, .guide__section ol { margin: 8px 0; padding-left: 22px; }
.guide__section li { font-size: 15px; line-height: 1.7; color: #1f2937; margin: 4px 0; }
.guide__section strong { color: #111827; }
.guide__section a { color: var(--primary, #2563EB); }

/* Nota callout */
.guide__note {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-left: 4px solid var(--primary, #2563EB);
  border-radius: 10px;
  padding: 12px 16px;
  margin: 14px 0;
  font-size: 14px;
  color: #1e3a8a;
  line-height: 1.6;
}

/* kbd (scorciatoie) */
kbd {
  display: inline-block;
  padding: 2px 8px;
  font-family: 'Consolas','SF Mono','Menlo','monospace';
  font-size: 12.5px;
  font-weight: 600;
  color: #0f172a;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-bottom-width: 2px;
  border-radius: 6px;
  white-space: nowrap;
}

/* Tabella scorciatoie / comparativa */
.guide__table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.guide__table th {
  text-align: left;
  padding: 10px 12px;
  background: #f8fafc;
  border: 1px solid var(--guide-border);
  font-weight: 700;
  color: #111827;
}
.guide__table td {
  padding: 9px 12px;
  border: 1px solid var(--guide-border);
  color: #1f2937;
  vertical-align: top;
}
.guide__table tr:nth-child(even) td { background: #fcfcfd; }

/* Indice in cima nelle sezioni lunghe */
.guide__toc-inline {
  margin: 8px 0 4px;
  padding-left: 20px;
  font-size: 14px;
}
.guide__toc-inline a { color: var(--guide-muted); }

/* Pulsante torna su */
.guide__top {
  position: sticky;
  bottom: 20px;
  float: right;
  margin-right: 8px;
  background: var(--primary, #2563EB);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(37, 99, 235, .35);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.guide__top.is-visible { opacity: 1; pointer-events: auto; }
.guide__top:hover { filter: brightness(1.05); }

@media (prefers-reduced-motion: reduce) {
  .guide__top { transition: none; }
}

/* Mobile: la sidebar diventa un box espandibile in cima */
@media (max-width: 980px) {
  .guide { grid-template-columns: 1fr; gap: 20px; }
  .guide__aside {
    position: static;
    max-height: none;
    border: 1px solid var(--guide-border);
    border-radius: 14px;
    padding: 14px 8px;
  }
  .guide__nav { columns: 2; column-gap: 8px; }
  .guide__nav li { break-inside: avoid; }
  .guide__nav a { font-size: 13px; padding: 4px 8px; }
}
@media (max-width: 560px) {
  .guide__nav { columns: 1; }
  .guide__table { font-size: 13px; }
}