/* ── Layout guida ── */
.guide-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 56px; padding: 44px 0 72px; align-items: start; }

.guide-nav { position: sticky; top: 88px; font-size: 14px; max-height: calc(100vh - 110px); overflow-y: auto; }
.guide-nav .gn-title { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .6px; color: var(--label-3); margin-bottom: 12px; }
.guide-nav ol { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.guide-nav ol a { display: block; padding: 7px 12px; border-radius: 9px; color: var(--label-2); text-decoration: none; font-weight: 500; }
.guide-nav ol a:hover { background: rgba(0,0,0,.05); color: var(--label); }
.guide-nav ol a.active { background: rgba(37,99,235,.1); color: var(--primary-dark); font-weight: 700; }
.guide-nav .gn-sections { list-style: none; margin: 2px 0 6px; padding-left: 12px; border-left: 2px solid var(--separator); display: flex; flex-direction: column; gap: 1px; }
.guide-nav .gn-sections a { padding: 4px 10px; font-size: 13px; font-weight: 400; }

/* ── Contenuto ── */
.guide-content { min-width: 0; }
.crumbs { font-size: 13px; color: var(--label-3); margin-bottom: 18px; }
.crumbs a { color: var(--label-2); text-decoration: none; }
.crumbs a:hover { color: var(--primary-dark); }
.guide-content h1 { font-size: clamp(30px, 4vw, 42px); font-weight: 800; letter-spacing: -1.2px; line-height: 1.1; margin-bottom: 10px; }
.guide-content .chapter-lead { font-size: 17.5px; color: var(--label-2); margin-bottom: 8px; max-width: 65ch; }
.guide-content h2 { font-size: 26px; font-weight: 800; letter-spacing: -0.7px; margin: 52px 0 6px; padding-top: 28px; border-top: 1px solid var(--separator); scroll-margin-top: 86px; }
.guide-content h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.4px; margin: 34px 0 4px; scroll-margin-top: 86px; }
.guide-content h4 { font-size: 15px; font-weight: 700; margin: 22px 0 6px; color: var(--label); }
.guide-content p, .guide-content li { font-size: 15.5px; color: var(--label-2); }
.guide-content p { margin: 8px 0; max-width: 72ch; }
.guide-content ul, .guide-content ol { margin: 8px 0 12px; padding-left: 24px; }
.guide-content li { margin: 5px 0; }
.guide-content strong { color: var(--label); }
.guide-content a { color: var(--primary-dark); text-decoration: none; }
.guide-content a:hover { text-decoration: underline; }
.guide-content kbd {
  font-family: inherit; font-size: 13px; font-weight: 600;
  background: var(--surface); border: 1px solid var(--separator); border-bottom-width: 2px;
  border-radius: 6px; padding: 1px 7px; color: var(--label); white-space: nowrap;
}
.guide-content code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 13.5px; background: var(--surface); border: 1px solid var(--separator); border-radius: 6px; padding: 1px 6px; }

/* Callout "Da sapere" */
.callout { background: var(--surface); border: 1px solid var(--separator); border-left: 4px solid var(--primary); border-radius: 12px; padding: 16px 20px; margin: 18px 0; max-width: 72ch; }
.callout .co-title { font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .5px; color: var(--primary-dark); margin-bottom: 6px; }
.callout.warn { border-left-color: var(--orange); }
.callout.warn .co-title { color: #B45309; }
.callout p, .callout li { font-size: 14.5px; }
.callout ul { margin-bottom: 2px; }

/* Indice capitoli (pagina indice) */
.chapter-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 36px; }
.chapter-card { background: var(--surface); border: 1px solid var(--separator); border-radius: 18px; padding: 26px; text-decoration: none; display: block; transition: transform .18s, box-shadow .18s; }
.chapter-card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(0,0,0,.07); text-decoration: none; }
.chapter-card .cc-num { font-size: 12px; font-weight: 800; color: var(--primary-dark); text-transform: uppercase; letter-spacing: .6px; }
.chapter-card h3 { font-size: 19px; font-weight: 800; letter-spacing: -0.4px; margin: 4px 0 6px; color: var(--label); }
.chapter-card p { font-size: 14px; color: var(--label-2); margin: 0; }

/* Pager precedente/successivo */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--separator); }
.pager a { background: var(--surface); border: 1px solid var(--separator); border-radius: 14px; padding: 16px 20px; text-decoration: none; transition: transform .15s, box-shadow .15s; }
.pager a:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0,0,0,.06); text-decoration: none; }
.pager .pg-dir { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--label-3); }
.pager .pg-title { display: block; font-size: 15px; font-weight: 700; color: var(--primary-dark); margin-top: 3px; }
.pager .pg-next { text-align: right; grid-column: 2; }

@media (max-width: 900px) {
  .guide-layout { grid-template-columns: 1fr; gap: 28px; }
  .guide-nav { position: static; max-height: none; background: var(--surface); border: 1px solid var(--separator); border-radius: 14px; padding: 16px; }
  .guide-nav .gn-sections { display: none; }
  .chapter-list, .pager { grid-template-columns: 1fr; }
  .pager .pg-next { grid-column: 1; }
}