/* ------------------------------------------------------------------ *
   * Carta e inchiostro: un catalogo bibliografico, non un cruscotto.
   * Nessun font remoto — l'eleganza viene dalle famiglie di sistema,
   * dalla scala tipografica e dallo spazio, non da una dipendenza.
   * ------------------------------------------------------------------ */
  :root {
    color-scheme: light dark;

    --paper:       #f7f4ee;
    --panel:       #fffdf9;
    --sunk:        #f1ece3;
    --ink:         #23211d;
    --ink-soft:    #4c4740;
    --muted:       #8a8478;
    --rule:        #e3ddd1;
    --rule-soft:   #eeE9df;

    --accent:      #33497f;
    --accent-ink:  #fffdf9;
    --accent-wash: #e6eaf4;

    --auto:        #2f6b46;
    --review:      #8d6222;
    --unresolved:  #92332d;

    --shadow: 0 1px 1px rgba(35,33,29,.03), 0 10px 28px -16px rgba(35,33,29,.16);

    --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua",
             Georgia, serif;
    --sans:  ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --mono:  ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

    --radius: 11px;
    --page: 1000px;
  }

  /* La preferenza di sistema vale finché non c'è una scelta esplicita. */
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --paper:       #17161a;
      --panel:       #1e1d22;
      --sunk:        #26252b;
      --ink:         #e9e5dd;
      --ink-soft:    #c5bfb4;
      --muted:       #928c81;
      --rule:        #302e36;
      --rule-soft:   #27262c;

      --accent:      #9db2ee;
      --accent-ink:  #16151a;
      --accent-wash: #242a3d;

      --auto:        #6bbe91;
      --review:      #d8a75d;
      --unresolved:  #e8877d;

      --shadow: 0 1px 2px rgba(0,0,0,.34), 0 12px 32px -18px rgba(0,0,0,.7);
    }
  }

  :root[data-theme="dark"] {
    --paper:       #17161a;
    --panel:       #1e1d22;
    --sunk:        #26252b;
    --ink:         #e9e5dd;
    --ink-soft:    #c5bfb4;
    --muted:       #928c81;
    --rule:        #302e36;
    --rule-soft:   #27262c;
    --accent:      #9db2ee;
    --accent-ink:  #16151a;
    --accent-wash: #242a3d;
    --auto:        #6bbe91;
    --review:      #d8a75d;
    --unresolved:  #e8877d;
    --shadow: 0 1px 2px rgba(0,0,0,.34), 0 12px 32px -18px rgba(0,0,0,.7);
  }

  .theme {
    padding: 6px 10px; border-radius: 999px;
    background: transparent; border: 1px solid var(--rule);
    color: var(--muted); font: 500 12px/1 var(--sans);
  }
  .theme:hover { background: var(--sunk); color: var(--ink-soft); border-color: var(--muted); }

  *, *::before, *::after { box-sizing: border-box; }

  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font: 15px/1.6 var(--sans);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  ::selection { background: var(--accent-wash); color: var(--ink); }

  :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* ---- testata ---- */
  header {
    padding: 38px 24px 24px;
    border-bottom: 1px solid var(--rule);
    background: linear-gradient(var(--panel), var(--paper));
  }
  .masthead {
    max-width: var(--page); margin: 0 auto;
    display: flex; align-items: flex-end; gap: 24px; flex-wrap: wrap;
  }
  h1 {
    margin: 0;
    font: 600 27px/1.15 var(--serif);
    letter-spacing: -.012em;
  }
  h1 .dim {
    margin-left: 11px; color: var(--muted);
    font: 400 14px/1 var(--sans); letter-spacing: .03em;
  }
  .tagline {
    margin: 7px 0 0; color: var(--muted); font-size: 13px; letter-spacing: .01em;
  }
  .stats {
    margin-left: auto; text-align: right;
    color: var(--muted); font: 12px/1.7 var(--mono);
  }

  main { max-width: var(--page); margin: 0 auto; padding: 26px 24px 8px; }

  /* ---- schede ---- */
  .tabs {
    display: flex; flex-wrap: wrap; gap: 2px;
    border-bottom: 1px solid var(--rule); margin-bottom: 26px;
  }
  .tabs button {
    margin-bottom: -1px; padding: 10px 15px;
    background: none; border: 0; border-bottom: 2px solid transparent;
    border-radius: 0; color: var(--muted);
    font: 500 14px/1 var(--sans);
    transition: color .16s ease, border-color .16s ease;
  }
  .tabs button:hover,
  .tabs button[aria-selected="true"] { background: none; }
  .tabs button:hover { color: var(--ink-soft); }
  .tabs button[aria-selected="true"] {
    color: var(--ink); font-weight: 600; border-bottom-color: var(--accent);
  }

  /* ---- riquadri ---- */
  .card {
    background: var(--panel);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
  }
  #result .card, #ingestresult .card, #browseresult .card,
  #legendbody .card { animation: rise .22s ease both; }
  @keyframes rise {
    from { opacity: 0; transform: translateY(5px); }
    to   { opacity: 1; transform: none; }
  }

  h2 {
    margin: 0 0 14px;
    font: 600 11.5px/1 var(--sans);
    text-transform: uppercase; letter-spacing: .09em; color: var(--muted);
  }

  /* ---- moduli ---- */
  .row { display: flex; gap: 10px; flex-wrap: wrap; }

  input[type=text] {
    flex: 1 1 320px; min-width: 0;
    padding: 11px 14px;
    font: 15px/1.4 var(--mono);
    color: var(--ink); background: var(--sunk);
    border: 1px solid var(--rule); border-radius: 8px;
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
  }
  input[type=text]::placeholder {
    font: 14px/1.4 var(--sans); color: var(--muted);
  }
  input[type=text]:focus {
    outline: none; background: var(--panel);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-wash);
  }

  button {
    padding: 11px 19px; border: 1px solid transparent; border-radius: 8px;
    background: var(--accent); color: var(--accent-ink);
    font: 600 14px/1 var(--sans); cursor: pointer;
    transition: background .16s ease, border-color .16s ease,
                color .16s ease, transform .08s ease;
  }
  button:hover { background: color-mix(in srgb, var(--accent) 88%, var(--ink)); }
  button:active { transform: translateY(1px); }
  button.ghost {
    background: transparent; color: var(--ink-soft); border-color: var(--rule);
  }
  button.ghost:hover {
    background: var(--sunk); border-color: var(--muted); color: var(--ink);
  }
  .danger { background: transparent; color: var(--unresolved); border-color: currentColor; }
  .danger:hover { background: transparent; color: var(--unresolved);
                  border-color: var(--unresolved); }

  .hint {
    margin: 12px 0 0; color: var(--muted);
    font-size: 13px; line-height: 1.6; max-width: 68ch;
  }
  .hint code, code {
    font: 12.5px var(--mono);
    background: var(--sunk); padding: 1px 5px; border-radius: 4px;
  }

  .examples { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
  .examples button {
    padding: 6px 12px; border: 1px solid var(--rule-soft); border-radius: 999px;
    background: transparent; color: var(--muted);
    font: 500 12.5px/1.35 var(--sans);
  }
  .examples button:hover {
    background: var(--sunk); border-color: var(--rule); color: var(--ink-soft);
  }
  .back:hover { background: var(--sunk); color: var(--ink-soft); }

  details summary {
    cursor: pointer; color: var(--muted); font-size: 13px;
    padding: 3px 0; list-style-position: outside;
  }
  details summary:hover { color: var(--ink-soft); }

  /* ---- la chiave: l'oggetto centrale, trattato come tale ---- */
  .key {
    margin: 15px 0 8px;
    font: 600 clamp(17px, 3.1vw, 25px)/1.35 var(--mono);
    letter-spacing: -.018em; word-break: normal; overflow-wrap: anywhere;
  }
  /* Le barre arretrano ovunque compaia una chiave, non solo nel titolo. */
  .sl { color: var(--muted); font-weight: 400; }
  .key .sl { color: var(--muted); font-weight: 400; }
  .key.none {
    font: 400 16px/1.5 var(--sans); letter-spacing: 0; color: var(--muted);
  }

  .badge {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 4px 12px 4px 10px; border-radius: 999px;
    border: 1px solid currentColor;
    font: 700 11px/1 var(--sans); letter-spacing: .07em;
  }
  .badge::before {
    content: ""; width: 6px; height: 6px; border-radius: 50%;
    background: currentColor;
  }
  .neutral { color: var(--accent); }
  .AUTO { color: var(--auto); }
  .REVIEW { color: var(--review); }
  .UNRESOLVED, .INVALID_INPUT { color: var(--unresolved); }

  /* ---- griglia di metadata ---- */
  .meta {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px 22px; margin-top: 18px;
    padding-top: 18px; border-top: 1px solid var(--rule-soft);
  }
  .meta div span {
    display: block; margin-bottom: 2px; color: var(--muted);
    font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em;
  }
  .meta div b { font-weight: 600; font-size: 14.5px; }

  /* ---- pipeline ---- */
  ol.pipeline { list-style: none; margin: 0; padding: 0; position: relative; }
  ol.pipeline::before {
    content: ""; position: absolute; left: 4px; top: 14px; bottom: 14px;
    width: 1px; background: var(--rule);
  }
  ol.pipeline li { position: relative; padding: 8px 0 8px 24px; }
  ol.pipeline li::before {
    content: ""; position: absolute; left: 0; top: 15px;
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--panel); border: 2px solid var(--accent);
  }
  ol.pipeline .stage { font-weight: 600; font-size: 13.5px; }
  ol.pipeline .detail { color: var(--muted); font-size: 13px; }

  ul.list { margin: 0; padding-left: 18px; }
  ul.list li { margin-bottom: 7px; font-size: 13.5px; line-height: 1.55; }
  ul.list li:last-child { margin-bottom: 0; }
  ul.warn li { color: var(--review); }

  /* ---- righe cliccabili ---- */
  .cand {
    border: 1px solid var(--rule-soft); border-radius: 9px;
    padding: 12px 14px; margin-bottom: 8px; background: var(--panel);
    transition: border-color .16s ease, background .16s ease;
  }
  .cand:last-child { margin-bottom: 0; }
  .cand .k { font: 600 13.5px/1.45 var(--mono); word-break: normal; overflow-wrap: anywhere; }
  .cand .k .sl { color: var(--muted); font-weight: 400; }
  .cand .s { float: right; margin-left: 12px; color: var(--muted); font: 12px var(--mono); }
  .cand .d { margin-top: 4px; color: var(--muted); font-size: 12.5px; }
  .keylink { cursor: pointer; }
  .keylink:hover { border-color: var(--accent); background: var(--sunk); }

  /* ---- anatomia della chiave ---- */
  .anatomy {
    display: flex; flex-wrap: wrap; align-items: stretch; gap: 3px;
    margin: 8px 0 4px;
  }
  .anatomy .sep {
    flex: 0 0 auto; align-self: center;
    color: var(--muted); font: 400 17px var(--mono);
  }
  .seg {
    flex: 1 1 0; min-width: 106px; padding: 9px 11px 10px;
    background: var(--sunk); border: 1px solid var(--rule-soft);
    border-radius: 8px;
  }
  .seg .lab {
    display: block; margin-bottom: 3px; color: var(--muted);
    font-size: 9.5px; letter-spacing: .09em; text-transform: uppercase;
  }
  .seg b { display: block; font: 600 14px/1.35 var(--mono); word-break: normal; overflow-wrap: anywhere; }
  .seg .dsc {
    display: block; margin-top: 5px; color: var(--muted);
    font-size: 11px; line-height: 1.4;
  }
  .seg[data-role="type"] { border-color: var(--accent); background: var(--accent-wash); }
  .seg[data-role="value"] { border-color: color-mix(in srgb, var(--auto) 45%, var(--rule)); }
  @media (max-width: 660px) {
    .anatomy .sep { display: none; }
    .seg { flex: 1 1 100%; }
  }

  /* ---- riquadri di sintesi ---- */
  .tiles {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
    gap: 10px; margin-top: 18px;
  }
  .tile {
    padding: 12px 14px; background: var(--sunk);
    border: 1px solid var(--rule-soft); border-radius: 9px;
  }
  .tile span {
    display: block; color: var(--muted);
    font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
  }
  .tile b { font: 600 20px/1.4 var(--mono); }
  .tile small { color: var(--muted); font-size: 12px; }

  /* ---- tabelle ---- */
  .scroll { overflow-x: auto; margin-top: 6px; }
  table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
  th, td {
    padding: 10px 16px 10px 0; text-align: left; white-space: nowrap;
    border-bottom: 1px solid var(--rule-soft);
  }
  th {
    color: var(--muted); font: 600 10.5px/1 var(--sans);
    letter-spacing: .08em; text-transform: uppercase;
    padding-bottom: 8px;
  }
  td.mono { font: 12.5px var(--mono); }
  tr:last-child td { border-bottom: 0; }

  .chip {
    display: inline-block; margin: 0 5px 5px 0; padding: 3px 10px;
    border: 1px solid var(--rule-soft); border-radius: 999px;
    color: var(--muted); font-size: 11.5px;
  }

  /* ---- barre di confidence ---- */
  .meter { margin-top: 16px; }
  .meter div {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 7px; font-size: 12.5px;
  }
  .meter span.lbl { min-width: 116px; color: var(--muted); }
  .meter span.bar {
    flex: 1; height: 5px; border-radius: 3px;
    background: var(--rule); overflow: hidden;
  }
  .meter span.bar i {
    display: block; height: 100%; background: var(--accent);
    border-radius: 3px;
  }
  .meter span.num { min-width: 34px; text-align: right; font: 12px var(--mono); }

  /* ---- azioni e avvisi ---- */
  .actions {
    display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 16px;
  }
  .actions input {
    flex: 1 1 260px; padding: 9px 12px; font: 13px var(--mono);
    color: var(--ink); background: var(--sunk);
    border: 1px solid var(--rule); border-radius: 8px;
  }
  .actions button { padding: 9px 15px; font-size: 13px; }

  .warn-box {
    margin-top: 12px; padding: 10px 0 10px 13px;
    border-left: 2px solid var(--review);
    color: var(--review); font-size: 13px; line-height: 1.55;
  }

  .manual {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px; margin-top: 14px;
  }
  .manual input { flex: none; width: 100%; padding: 9px 11px; font-size: 13.5px; }

  textarea {
    width: 100%; margin-top: 12px; padding: 11px 14px; resize: vertical;
    font: 13.5px/1.65 var(--mono); color: var(--ink); background: var(--sunk);
    border: 1px solid var(--rule); border-radius: 8px;
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
  }
  textarea::placeholder { font: 13px/1.6 var(--sans); color: var(--muted); }
  textarea:focus {
    outline: none; background: var(--panel); border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-wash);
  }
  .check {
    display: flex; align-items: center; gap: 8px; margin-top: 11px;
    color: var(--muted); font-size: 13px; cursor: pointer;
  }
  .check input { accent-color: var(--accent); }

  /* ---- coda: decidere dalla riga stessa ---- */
  .qrow {
    display: flex; align-items: center; gap: 14px;
    padding: 11px 4px 11px 14px; border: 1px solid var(--rule-soft);
    border-radius: 9px; margin-bottom: 8px; background: var(--panel);
    transition: border-color .16s ease, background .16s ease;
  }
  .qrow:last-child { margin-bottom: 0; }
  .qrow:hover { border-color: var(--rule); background: var(--sunk); }
  .qmain { flex: 1 1 auto; min-width: 0; cursor: pointer; }
  .qmain .k {
    font: 600 13.5px/1.45 var(--mono);
    word-break: normal; overflow-wrap: anywhere;
  }
  .qmain .k .sl { color: var(--muted); font-weight: 400; }
  .qmain .d {
    margin-top: 3px; color: var(--muted); font-size: 12.5px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .qmain:hover .k { color: var(--accent); }
  .qactions { flex: 0 0 auto; display: flex; align-items: center; gap: 6px; }
  .qactions .score {
    min-width: 38px; text-align: right; color: var(--muted); font: 12px var(--mono);
  }
  button.mini { padding: 6px 12px; font-size: 12.5px; border-radius: 7px; }
  .qstate { color: var(--muted); font-size: 12px; padding-right: 10px; }

  .notice {
    margin-bottom: 12px; padding: 10px 14px; border-radius: 8px;
    font-family: var(--mono);
    background: var(--accent-wash); color: var(--ink-soft);
    font-size: 12.5px; border: 1px solid transparent;
  }
  .notice.bad { background: transparent; border-color: var(--unresolved);
                color: var(--unresolved); }

  .progress {
    margin-top: 14px; color: var(--muted); font: 12.5px var(--mono);
  }
  .cover.mini { width: 34px; border-radius: 4px; }
  .cand.withcover { display: flex; align-items: center; gap: 13px; }
  .cand.withcover .body { flex: 1 1 auto; min-width: 0; }

  /* ---- copertine ---- */
  .cover {
    display: block; width: 92px; border-radius: 5px;
    border: 1px solid var(--rule); background: var(--sunk);
    box-shadow: 0 2px 8px -4px rgba(35,33,29,.4);
  }
  .cover-row { display: flex; gap: 18px; align-items: flex-start; margin-top: 16px; }
  .cover-row .cover { flex: 0 0 auto; }
  .cover-note { margin-top: 7px; color: var(--muted); font-size: 11.5px; line-height: 1.45; }
  td .cover { width: 44px; }

  /* ---- legenda ---- */
  .legend-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr));
    gap: 12px;
  }
  .legend-item {
    padding: 14px 16px; background: var(--sunk);
    border: 1px solid var(--rule-soft); border-radius: 9px;
  }
  .legend-item h3 { margin: 0 0 6px; font: 600 15px/1 var(--mono); }
  .legend-name {
    margin-left: 8px; color: var(--muted);
    font: 600 12.5px/1 var(--sans); letter-spacing: .01em;
  }
  .legend-item p { margin: 0 0 8px; font-size: 13px; line-height: 1.5; }
  .legend-item code {
    display: block; margin-top: 9px; padding: 6px 9px;
    background: var(--panel); color: var(--muted);
    font-size: 11.5px; word-break: break-all;
  }

  pre {
    margin: 12px 0 0; padding: 14px 16px;
    background: var(--sunk); border: 1px solid var(--rule-soft);
    border-radius: 9px; overflow-x: auto;
    font: 12px/1.6 var(--mono);
  }

  .back {
    margin-bottom: 14px; padding: 7px 13px; font-size: 12.5px;
    background: transparent; color: var(--muted); border-color: var(--rule);
  }

  footer {
    max-width: var(--page); margin: 26px auto 0; padding: 20px 24px 44px;
    border-top: 1px solid var(--rule);
    color: var(--muted); font-size: 12.5px; text-align: center;
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: .01ms !important; transition-duration: .01ms !important;
    }
  }

  /* ---- testata: azioni ---- */
  .masthead-actions {
    display: flex; gap: 6px; justify-content: flex-end; margin-top: 8px;
  }
  a.theme { display: inline-block; text-decoration: none; }
  a.theme:hover { background: var(--sunk); color: var(--ink-soft); border-color: var(--muted); }

  /* ---- modulo di modifica di un Bucket ---- */
  .edit-grid {
    display: grid; gap: 10px; margin-top: 4px;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
  .edit-grid label {
    display: flex; flex-direction: column; gap: 5px;
    color: var(--muted); font: 500 11.5px/1 var(--sans);
    text-transform: uppercase; letter-spacing: .07em;
  }
  .edit-grid input[type=text] { flex: none; width: 100%; padding: 9px 11px; font-size: 13.5px; }
  .edit-grid .wide { grid-column: 1 / -1; }

  /* La chiave che risulterebbe dai campi, prima di scrivere. */
  .preview {
    margin-top: 14px; padding: 13px 15px;
    background: var(--sunk); border: 1px solid var(--rule); border-radius: 9px;
  }
  .preview .k { font: 600 15px/1.45 var(--mono); word-break: normal; overflow-wrap: anywhere; }
  .preview .k .sl { color: var(--muted); font-weight: 400; }
  .preview .lbl {
    display: block; margin-bottom: 5px;
    color: var(--muted); font: 500 11px/1 var(--sans);
    text-transform: uppercase; letter-spacing: .08em;
  }
  .preview ul { margin: 10px 0 0; padding-left: 18px; color: var(--ink-soft); font-size: 12.5px; }
  .preview.merge { border-color: var(--review); }
  .preview.danger-box { border-color: var(--unresolved); }

  /* Elenchi lunghi di manutenzione: scorrono nel proprio riquadro invece di
     spingere in fondo alla pagina ciò che viene dopo. */
  .capped { max-height: 400px; overflow-y: auto; }