/* Sezione Motore: stato, componenti, storico, operazioni, dettagli. Usa solo i token di app.css (tema chiaro e scuro). */

/* Gli elementi con display esplicito (righe di tabella, pulsanti, .chips) ignorerebbero l'attributo hidden. */
.eng [hidden],
.eng-body [hidden] { display: none !important; }

.eng { min-width: 0; }
.eng-body, .eng-tab { min-width: 0; }
.eng-version-chip { margin-left: 6px; font-size: 13px; font-weight: 500; vertical-align: middle; }
.eng .card { margin-bottom: 0; min-width: 0; }
.eng-status, .eng-components, .eng-history, .eng-ops { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.eng .table-wrap { max-width: 100%; }
.mt-s { margin-top: 6px; }

/* ---- Elementi comuni ---- */
.eng-plain { margin: 0; padding-left: 0; list-style: none; }
.eng-plain li + li { margin-top: 3px; }
.eng-plain li { overflow-wrap: anywhere; }
.eng-collapse { margin-top: 6px; }
.eng-collapse > summary { cursor: pointer; color: var(--accent); font-weight: 550; font-size: 13px; }
.eng-collapse[open] > summary { margin-bottom: 6px; }
.eng-formula { margin: 0 0 8px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-2); font-family: var(--mono); font-size: 12.5px; overflow-wrap: anywhere; }
.eng-kv { margin: 8px 0; }
.eng-kv dd { min-width: 0; }
.eng-introduced { min-width: 0; }
.eng-filter { gap: 8px; margin-bottom: 10px; }
.eng-signature { margin: 6px 0 0; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-2); font-family: var(--mono); font-size: 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.tabs a.tab .tab-count.warn { background: var(--warn-soft); color: var(--warn); font-weight: 650; }
.eng a.badge:hover { text-decoration: none; filter: brightness(0.96); }
/* Codici di contratto lunghi: vanno a capo invece di allargare le tabelle. */
.eng .badge.eng-wrap { max-width: 100%; white-space: normal; overflow-wrap: anywhere; text-align: left; }
.eng dd, .eng .eng-anywhere { overflow-wrap: anywhere; }
.eng td.eng-anywhere { min-width: 170px; }
.eng td.eng-wide { min-width: 200px; }
.eng-chips-tight { margin: 4px 0; }

/* ---- Percorso e intestazione delle pagine di dettaglio ---- */
.eng-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; margin-bottom: 10px; font-size: 13px; color: var(--muted); }
.eng-crumbs [aria-current="page"] { color: var(--text); font-weight: 600; overflow-wrap: anywhere; }
.eng .page-header h1 { overflow-wrap: anywhere; }
.eng .page-header h1.mono { font-size: 22px; }
.eng-detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; margin-bottom: 16px; }
.eng > .card, .eng > .alert { margin-bottom: 16px; }

/* ---- Stato ---- */
.eng-top { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(0, 2fr) minmax(0, 1.4fr); gap: 16px; align-items: stretch; }
.eng-version-label { font-size: 12px; font-weight: 550; color: var(--muted); }
.eng-version-value { font-size: 30px; font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; margin: 2px 0 6px; }
.eng-issues { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.eng-issue { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: start; gap: 8px 10px; padding: 8px 10px; background: var(--surface-2); border: 1px solid var(--border); border-left: 3px solid var(--issue-tone, var(--border)); border-radius: 8px; }
.eng-issue.tone-danger { --issue-tone: var(--danger); }
.eng-issue.tone-warn { --issue-tone: var(--warn); }
.eng-issue.tone-purple { --issue-tone: var(--purple); }
.eng-issue.tone-info { --issue-tone: var(--info); }
.eng-issue-mark { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 20px; height: 20px; border: 2px solid currentColor; border-radius: 50%; font-size: 12px; font-weight: 800; line-height: 1; color: var(--issue-tone, var(--muted)); }
.eng-issue-mark.ok { color: var(--ok); }
.eng-issue-main { min-width: 0; }
.eng-issue-text { font-weight: 550; overflow-wrap: anywhere; }
.eng-issue .button { padding: 3px 10px; font-size: 12.5px; }
.eng-empty-ok { display: flex; align-items: flex-start; gap: 10px; margin: 0; color: var(--muted); }
.eng-last-foot { margin: 10px 0 0; }

.eng-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }
.eng-tile { display: flex; flex-direction: column; gap: 2px; min-width: 0; height: 100%; padding: 12px 14px; border: 1px solid var(--border); border-left-width: 4px; border-radius: 10px; background: var(--surface); box-shadow: var(--shadow); color: var(--text); }
.eng-tile:hover { text-decoration: none; border-color: var(--accent); }
.eng-tile:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.eng-tile-label { font-size: 12px; font-weight: 550; color: var(--muted); }
.eng-tile-value { font-size: 24px; font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.eng-tile-note { font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }
.eng-tile.warn { border-left-color: var(--warn); }
.eng-tile.warn .eng-tile-value { color: var(--warn); }
.eng-tile.purple { border-left-color: var(--purple); }
.eng-tile.info { border-left-color: var(--info); }

.eng-how > summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.eng-how[open] > summary { margin-bottom: 12px; }
.eng-layers { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr); gap: 8px; align-items: stretch; margin-bottom: 12px; }
.eng-layer { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); color: var(--text); }
.eng-layer:hover { text-decoration: none; border-color: var(--accent); }
.eng-layer-title { font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.eng-layer-value { font-size: 22px; font-weight: 650; font-variant-numeric: tabular-nums; }
.eng-layer-text { font-size: 12.5px; color: var(--muted); }
.eng-arrow { align-self: center; font-size: 20px; color: var(--faint); }

/* ---- Componenti ---- */
.eng-subnav { display: flex; flex-wrap: wrap; gap: 6px 8px; }
.eng-subnav-link { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); color: var(--text); font-size: 13px; font-weight: 550; }
.eng-subnav-link:hover { text-decoration: none; border-color: var(--accent); }
.eng-section { scroll-margin-top: 12px; }
.eng-section:focus { outline: none; }
.eng-section:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.eng-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 12px; }
.eng-item { display: flex; flex-direction: column; gap: 6px; min-width: 0; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.eng-item.is-experimental { border-style: dashed; border-color: var(--purple); }
.eng-item-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.eng-item-head h3 { margin: 0; overflow-wrap: anywhere; }
.eng-item p { margin: 0; }

/* Regole da definire: titolo e azioni vanno a capo su più righe se non c'è spazio. */
.eng .criterion { min-width: 0; }
.eng .criterion-head { flex-wrap: wrap; }
.eng .criterion-head > div { min-width: 0; }
.eng .criterion-head .actions a { overflow-wrap: anywhere; }
.eng .criterion-head .actions select { max-width: 100%; }

/* ---- Dettaglio di un evento ---- */
.eng-detail { display: flex; flex-direction: column; gap: 10px; min-width: 0; padding: 4px 0; }
.eng-detail p { margin: 0; }
.eng-block h4 { margin: 0 0 6px; font-size: 12px; font-weight: 650; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.eng-line { display: grid; grid-template-columns: minmax(110px, 170px) minmax(0, 1fr); gap: 4px 12px; padding: 3px 0; font-size: 13px; }
.eng-line-label { color: var(--muted); }
.eng-line-body { min-width: 0; overflow-wrap: anywhere; }
.eng-snap { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px 14px; margin: 0; }
.eng-snap-item { display: flex; justify-content: space-between; gap: 8px; padding-bottom: 2px; border-bottom: 1px dotted var(--border); font-size: 12.5px; }
.eng-snap-item dt { color: var(--muted); }
.eng-snap-item dd { margin: 0; font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; white-space: nowrap; overflow-wrap: normal; }
.eng-events { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.eng-event { border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.eng-event > summary { padding: 8px 12px; cursor: pointer; list-style: none; }
.eng-event > summary::-webkit-details-marker { display: none; }
.eng-event > summary::before { content: "›"; display: inline-block; width: 14px; color: var(--muted); transition: transform 0.12s; }
.eng-event[open] > summary::before { transform: rotate(90deg); }
.eng-event > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 10px; }
.eng-event-head { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; vertical-align: top; max-width: calc(100% - 20px); }
.eng-event-date { color: var(--muted); font-size: 12.5px; }
.eng-event-summary { min-width: 0; overflow-wrap: anywhere; }
.eng-event-body { padding: 4px 12px 12px 26px; border-top: 1px solid var(--border); }

/* ---- Storico: grafico a gradini ---- */
.chart-line { fill: none; stroke-width: 2.25; stroke-linejoin: round; stroke-linecap: butt; pointer-events: none; }
.chart-line.s1 { stroke: var(--chart-1); }
.chart-line.s2 { stroke: var(--chart-2); stroke-dasharray: 8 4; }
.chart-line.s3 { stroke: var(--chart-3); stroke-dasharray: 2 4; stroke-linecap: round; stroke-width: 2.75; }
.chart-dot { stroke: var(--surface); stroke-width: 1.5; pointer-events: none; fill: var(--muted); }
.chart-dot.s1 { fill: var(--chart-1); }
.chart-dot.s2 { fill: var(--chart-2); }
.chart-dot.s3 { fill: var(--chart-3); }
.chart-dot.is-recon { fill: var(--surface); stroke-width: 2; }
.chart-dot.is-recon.s1 { stroke: var(--chart-1); }
.chart-dot.is-recon.s2 { stroke: var(--chart-2); }
.chart-dot.is-recon.s3 { stroke: var(--chart-3); }
.chart-version { stroke: var(--faint); stroke-width: 1; stroke-dasharray: 2 3; }
.chart-version-label { fill: var(--muted); font-size: 11px; font-weight: 600; }
.chart-legend-mark { flex: none; overflow: visible; }
.chart-legend strong { color: var(--text); font-variant-numeric: tabular-nums; }
.chart-tip-title { margin: 2px 0 4px; color: var(--muted); font-size: 12px; }

/* ---- Storico: timeline ---- */
.eng-timeline { margin: 0; padding: 0; list-style: none; position: relative; display: flex; flex-direction: column; gap: 12px; }
.eng-tl-item { position: relative; display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 10px; }
.eng-tl-item::before { content: ""; position: absolute; left: 8px; top: 18px; bottom: -14px; width: 2px; background: var(--border); }
.eng-tl-item:last-child::before { display: none; }
.eng-tl-dot { width: 14px; height: 14px; margin: 14px 2px 0; border: 3px solid var(--faint); border-radius: 50%; background: var(--surface); z-index: 1; }
.eng-tl-item.has-shape .eng-tl-dot { border-color: var(--ok); }
.eng-tl-item.has-template .eng-tl-dot { border-color: var(--accent); background: var(--accent-soft); }
.eng-tl-card { display: flex; flex-direction: column; gap: 6px; min-width: 0; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.eng-tl-item.has-template .eng-tl-card { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.eng-tl-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; font-size: 12.5px; color: var(--muted); }
.eng-tl-title { overflow-wrap: anywhere; }
.eng-tl-body { display: flex; flex-direction: column; gap: 2px; }
.eng-nothing { margin: 0; }

/* ---- Operazioni ---- */
.eng-filters { display: flex; flex-direction: column; gap: 12px; padding: 14px 16px; }
.eng-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.eng-chip { gap: 8px; padding: 4px 10px; border-radius: 999px; font-size: 12.5px; }
.eng-chip[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.eng-chip[aria-pressed="true"]:hover:not(:disabled) { background: var(--accent-soft); }
.eng-chip.is-empty { opacity: 0.55; }
.eng-chip-count { min-width: 1.4em; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; text-align: right; }
.eng-chip[aria-pressed="true"] .eng-chip-count { color: var(--text); font-weight: 650; }
.eng-drawer > summary { cursor: pointer; font-weight: 600; font-size: 13px; color: var(--accent); }
.eng-drawer[open] > summary { margin-bottom: 10px; }
.eng-filter-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px 12px; }
.eng-filter-grid .field { min-width: 0; }
.eng-filter-grid input, .eng-filter-grid select { width: 100%; }
.eng-filter-foot { margin-top: 8px; }
.eng-ops-results { display: flex; flex-direction: column; gap: 10px; transition: opacity 0.15s; }
.eng-ops-results.is-loading { opacity: 0.55; }
.eng-ops-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.eng-ops-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.eng-ops-grid th, .eng-ops-grid td { vertical-align: top; }
.eng-ops-grid .th-sort { display: inline-flex; align-items: center; gap: 4px; padding: 0; border: 0; background: none; color: inherit; font: inherit; font-weight: 550; cursor: pointer; }
.eng-ops-grid .th-sort:hover:not(:disabled) { background: none; color: var(--text); }
.eng-ops-grid th[aria-sort] { color: var(--accent); }
.eng-col-toggle { width: 34px; padding-right: 0; }
.eng-col-summary { min-width: 200px; overflow-wrap: anywhere; }
.eng-col-kind { min-width: 120px; }
.eng-col-kind .badge { white-space: normal; text-align: left; }
.eng-col-contract { min-width: 120px; overflow-wrap: anywhere; }
.eng-col-actor { min-width: 76px; overflow-wrap: normal; }
.eng-col-version { white-space: nowrap; }
.eng-expand { padding: 0; width: 26px; height: 26px; justify-content: center; border-color: transparent; background: none; color: var(--muted); font-size: 18px; line-height: 1; }
.eng-expand span { display: inline-block; transition: transform 0.12s; }
.eng-expand[aria-expanded="true"] span { transform: rotate(90deg); }
.eng-op { cursor: pointer; }
.eng-op:hover td { background: var(--surface-2); }
.eng-op.is-open td { background: var(--surface-2); border-bottom-color: transparent; }
.eng-op-detail td { padding: 4px 16px 14px 44px; background: var(--surface-2); }
.eng-pager { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 14px; }

/* ---- Riquadro nella Home ---- */
.home-engine { margin-bottom: 18px; }

/* ---- Schermi stretti ---- */
@media (max-width: 1100px) {
  .eng-top { grid-template-columns: minmax(0, 1fr); }
  .eng-layers { grid-template-columns: minmax(0, 1fr); }
  .eng-arrow { justify-self: center; transform: rotate(90deg); }
}
@media (max-width: 760px) {
  .eng-status, .eng-components, .eng-history, .eng-ops { gap: 12px; }
  .eng-items { grid-template-columns: minmax(0, 1fr); }
  .eng-detail-grid { grid-template-columns: minmax(0, 1fr); }
  .eng-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .eng-issue { grid-template-columns: auto minmax(0, 1fr); }
  .eng-issue > .button { grid-column: 2; justify-self: start; }
  .eng-line { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .eng-event-body { padding-left: 12px; }
  .eng .hide-sm { display: none; }
  .eng-tl-item { grid-template-columns: 14px minmax(0, 1fr); gap: 6px; }
  .eng-tl-item::before { left: 6px; }
  .eng-tl-dot { margin: 14px 0 0; width: 12px; height: 12px; }
  .eng-tl-card { padding: 10px 12px; }

  /* Tabella delle operazioni: una scheda per evento al posto delle colonne. */
  .eng-ops-wrap { border: 0; overflow: visible; }
  .eng-ops-grid, .eng-ops-grid tbody, .eng-ops-grid tr, .eng-ops-grid td { display: block; }
  .eng-ops-grid thead { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip-path: inset(50%); }
  .eng-op { position: relative; margin-bottom: 8px; padding: 8px 12px 8px 44px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
  .eng-op td, .eng-op:hover td, .eng-op.is-open td { padding: 2px 0; border: 0; background: none; }
  .eng-op td[data-label]::before { content: attr(data-label); display: inline-block; min-width: 72px; margin-right: 6px; color: var(--muted); font-size: 12px; }
  .eng-op .eng-col-kind .chips { display: inline-flex; vertical-align: middle; }
  .eng-op .eng-col-toggle { position: absolute; left: 8px; top: 8px; width: auto; padding: 0; }
  .eng-col-summary { min-width: 0; }
  .eng-op-detail { margin: -4px 0 8px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); }
  .eng-op-detail td { padding: 8px 12px 12px; background: none; }
  .eng-ops-actions { margin-left: 0; }
}
@media (max-width: 420px) {
  .eng-version-value { font-size: 26px; }
  .eng-tile { padding: 10px 12px; }
  .eng-tile-value { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .eng-ops-results, .eng-event > summary::before, .eng-expand span { transition: none; }
}