/* Modello della pagina di fase: una colonna di lettura, sezioni larghe per il flusso AI e le risorse. */
.fase main { display: grid; gap: 56px; padding-block: 24px 0; }
.fase .col { max-width: 780px; }

/* 0. Dove sei */
.where { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 4px; }
.where a { display: grid; gap: 2px; text-decoration: none; color: var(--muted); border-top: 3px solid var(--line); padding: 8px 6px 0 0; font-size: 12px; line-height: 1.25; min-width: 0; }
.where a b { font-family: var(--font-display); font-size: 16px; font-weight: 700; color: var(--muted); }
.where a:hover { color: var(--ink); border-top-color: var(--muted); }
.where a[aria-current="page"] { border-top-color: var(--accent); color: var(--ink); }
.where a[aria-current="page"] b { color: var(--accent); }

/* 1. Intestazione */
.top { display: grid; gap: 12px; }
.top .eyebrow b { color: var(--accent); font-weight: 500; }
.top h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.02; letter-spacing: -0.02em; }
.top .problem { font-family: var(--font-display); font-size: clamp(20px, 2.6vw, 26px); line-height: 1.3; font-weight: 500; max-width: 36ch; }

.block { display: grid; gap: 16px; scroll-margin-top: 16px; }
.block h2 { font-size: clamp(24px, 3vw, 30px); letter-spacing: -0.01em; }
.block .sub { color: var(--muted); max-width: 62ch; margin-top: -8px; }
.k { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted); font-weight: 400; margin-bottom: 4px; }

/* 2. In breve */
.brief { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 12px; background: var(--surface); overflow: hidden; }
.brief > div { padding: 14px 18px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); margin: 0 -1px -1px 0; }
.brief p { font-size: 15px; }
.brief .warn .k { color: var(--warn); }

/* 3. Come funziona */
/* Compatta: due colonne che si leggono dall'alto in basso, il responsabile sotto ogni passo */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-flow: column; grid-template-rows: repeat(var(--rows, 4), auto); column-gap: 32px; }
.steps li { display: grid; grid-template-columns: 24px minmax(0, 1fr); column-gap: 8px; padding: 7px 0; border-top: 1px solid var(--line); font-size: 14px; line-height: 1.4; counter-increment: s; }
.steps li::before { content: counter(s); font-family: var(--font-mono); font-size: 12px; color: var(--muted); padding-top: 1px; }
.steps .who { grid-column: 2; font-size: 12px; color: var(--muted); }

/* 4. Dove entra l'AI: il flusso su tre corsie */
.flow { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px 20px 18px; display: grid; gap: 16px; }
.flow-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px 16px; }
.flow-head h3 { font-family: var(--font-display); font-size: 20px; font-weight: 500; }
.lanes { display: grid; gap: 6px; }
.lanes .head, .lanes .lane { display: grid; grid-template-columns: 84px repeat(var(--steps), minmax(0, 1fr)); gap: 6px; }
.lanes .head span { font-family: var(--font-mono); font-size: 11px; color: var(--muted); padding-left: 2px; }
.lanes .lane > .name { font-size: 12px; font-weight: 600; color: var(--muted); display: flex; align-items: center; }
.lanes .lane { min-height: 64px; }
.cell { border-radius: 8px; padding: 8px 10px; font-size: 13px; line-height: 1.35; min-width: 0; }
.cell small { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--muted); margin-bottom: 2px; }
.cell.Tools { background: var(--bg); border: 1px solid var(--line); }
.cell.AI { background: var(--accent-soft); border: 1px solid var(--accent); color: var(--ink); }
.cell.AI small { color: var(--accent); }
.cell.People { background: var(--surface); border: 1px solid var(--muted); }
.flow-list { display: none; list-style: none; margin: 0; padding: 0; gap: 10px; }
.flow-list li { display: grid; gap: 6px; }
.flow-list li > b { font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--muted); }
.flow-list .cell { display: grid; grid-template-columns: 74px minmax(0, 1fr); gap: 8px; }
.flow-list .cell em { font-style: normal; font-size: 11px; font-weight: 600; color: var(--muted); }
.outcome { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.outcome > div { background: var(--bg); border-radius: 8px; padding: 10px 12px; font-size: 14px; }
.outcome .lim .k { color: var(--warn); }
.flow-note { font-size: 12px; color: var(--muted); }

/* 5. Risorse */
.res .tipo .pill { text-transform: none; letter-spacing: 0; font-family: var(--font-body); }
.panel { scroll-margin-top: 16px; }
.panel[hidden] { display: none; }
.check { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.check ol { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 15px; }
.check ol span { color: var(--muted); }

/* Argomenti della fase (pagina di fase) */
.topics { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.topic { background: var(--surface); border: 2px solid var(--accent); border-radius: 12px; padding: 15px 17px; display: grid; grid-template-rows: auto auto 1fr auto; gap: 8px; text-decoration: none; color: var(--ink); }
.topic:hover { background: var(--accent-soft); }
.topic .meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.topic .meta .pill { text-transform: none; letter-spacing: 0; font-family: var(--font-body); }
.topic h3 { font-size: 20px; font-weight: 500; }
.topic p { font-size: 14px; color: var(--muted); }
.topic .go { font-size: 14px; font-weight: 600; color: var(--accent); }
.next-topics { font-size: 14px; color: var(--muted); }
.next-topics b { color: var(--ink); font-weight: 600; }
.ai-topics { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.ai-topics li { display: grid; grid-template-columns: 180px minmax(0, 1fr) auto; gap: 4px 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15px; align-items: baseline; }
.ai-topics b { font-family: var(--font-display); font-size: 17px; font-weight: 500; }
.ai-topics a { font-size: 13px; font-weight: 600; white-space: nowrap; }

/* Percorso nella pagina di argomento */
.fase .crumb { margin-bottom: -40px; }

/* 6. Stack */
.stack { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--line); }
.stack li { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 4px 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.stack b { font-family: var(--font-display); font-size: 17px; font-weight: 500; }
.stack li.alt b { color: var(--muted); }

/* 7. Fase precedente e successiva */
.pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.pager a, .pager span { display: grid; gap: 2px; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; text-decoration: none; color: var(--ink); background: var(--surface); }
.pager a:hover { border-color: var(--accent); }
.pager .next { text-align: right; }
.pager small { font-size: 12px; color: var(--muted); }
.pager b { font-family: var(--font-display); font-size: 18px; font-weight: 500; }
.pager span { visibility: hidden; }

@media (max-width: 760px) {
  .where a { font-size: 0; padding-right: 0; }
  .where a b { font-size: 15px; }
  .brief, .outcome, .pager { grid-template-columns: minmax(0, 1fr); }
  .lanes { display: none; }
  .flow-list { display: grid; }
  .steps { grid-template-columns: minmax(0, 1fr); grid-auto-flow: row; grid-template-rows: none; }
  .stack li { grid-template-columns: minmax(0, 1fr); }
  .pager .next { text-align: left; }
  .ai-topics li { grid-template-columns: minmax(0, 1fr); }
  .fase .crumb { margin-bottom: -32px; }
}