/* ============================================================
   pnautica — Carteggio · Index typographic skin
   Scoped sotto .qc-cg-index per non collidere col resto del sito.
   Riusa la palette/tipografia della card singola.
   ============================================================ */

.qc-cg-index {
  --brand:        #c2591d;
  --brand-dark:   #9a4517;
  --brand-deep:   #7d370f;
  --brand-1:      #e4b695;
  --brand-2:      #ebceb3;
  --brand-3:      #f6e5d1;
  --brand-tint:   #fdf6ef;

  --bg:           #faf6ef;
  --line:         #ece5da;
  --line-strong:  #d8cdbe;
  --ink:          #1f1a17;
  --ink-2:        #6e655e;
  --ink-3:        #a39a92;
  --ink-4:        #c8c0b6;

  --display:      'Fraunces', 'Iowan Old Style', Georgia, serif;
  --body:         'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:         'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  font-family: var(--body);
  color: var(--ink);
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  line-height: 1.55;
}

/* Breadcrumb editoriale (sotto-pagine argomento / sotto-argomento) */
.qc-cg-index__breadcrumb {
  font-family: var(--body);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
  margin: 0 0 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
}
.qc-cg-index__breadcrumb a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.qc-cg-index__breadcrumb a:hover {
  color: var(--brand-dark);
  border-bottom-color: var(--brand);
}
.qc-cg-index__breadcrumb-sep {
  color: var(--ink-4);
  font-weight: 400;
}
.qc-cg-index__breadcrumb-current {
  color: var(--ink);
  font-weight: 700;
}

/* Header section */
.qc-cg-index__header { margin-bottom: 28px; }
.qc-cg-index__kicker {
  font-family: var(--body);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.qc-cg-index__kicker::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--brand);
}

.qc-cg-index h1 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
  margin: 0 0 8px;
  text-transform: none;
}

.qc-cg-index h2 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--ink-2);
  font-variation-settings: "opsz" 24;
  margin: 0 0 18px;
  max-width: 720px;
}

.qc-cg-index__lead {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 720px;
  margin: 0 0 14px;
}

.qc-cg-index__lead strong { color: var(--ink); font-weight: 600; }

/* Stats strip */
.qc-cg-index__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 28px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 18px 0 28px;
}
.qc-cg-index__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.qc-cg-index__stat-num {
  font-family: var(--display);
  font-weight: 500;
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
}
.qc-cg-index__stat-lbl {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 600;
}

/* Tipologie grid (sostituisce la <ol>) */
.qc-cg-index__topics-title {
  font-family: var(--body);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 700;
  margin: 0 0 14px;
}

/* Disclaimer editoriale sopra l'albero delle tipologie */
.qc-cg-index__topics-note {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
  font-variation-settings: "opsz" 24;
  max-width: 760px;
  margin: 0 0 22px;
  padding: 12px 16px;
  border-left: 2px solid var(--brand);
  background: var(--brand-tint);
  border-radius: 0 8px 8px 0;
}
.qc-cg-index__topics-note strong {
  font-style: normal;
  font-weight: 600;
  color: var(--ink);
  font-family: var(--body);
}

/* Albero a 4 macro-blocchi (famiglie) × N sotto-tipologie */
.qc-cg-index__groups {
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  counter-reset: group-counter;
}
.qc-cg-index__group {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  counter-increment: group-counter;
  position: relative;
}
.qc-cg-index__group::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-dark) 100%);
}
.qc-cg-index__group-head {
  padding: 16px 18px 12px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line-soft, var(--line));
  background: linear-gradient(180deg, var(--brand-tint) 0%, transparent 100%);
}
.qc-cg-index__group-name {
  font-family: var(--display);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-variation-settings: "opsz" 144;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.qc-cg-index__group-name::before {
  content: counter(group-counter, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--brand);
  margin-right: 10px;
  letter-spacing: 0;
  vertical-align: 0.35em;
}
.qc-cg-index__group-name:hover {
  color: var(--brand-dark);
  border-bottom-color: var(--brand);
}
.qc-cg-index__group-total {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  white-space: nowrap;
}
.qc-cg-index__group-total b { color: var(--ink); font-weight: 600; }

.qc-cg-index__sub-list {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
}
.qc-cg-index__sub {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 18px;
  border-bottom: 1px dashed var(--line);
  transition: background-color .15s ease;
}
.qc-cg-index__sub:last-child { border-bottom: none; }
.qc-cg-index__sub:hover { background: var(--brand-tint); }
.qc-cg-index__sub-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
  flex: 1;
  min-width: 0;
}
.qc-cg-index__sub-arrow {
  color: var(--brand);
  font-weight: 400;
  font-size: 14px;
  transition: transform .15s ease;
}
.qc-cg-index__sub-link:hover .qc-cg-index__sub-arrow {
  transform: translateX(2px);
}
.qc-cg-index__sub-name {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 15px;
  letter-spacing: -0.005em;
  color: var(--ink);
  font-variation-settings: "opsz" 24;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
.qc-cg-index__sub-link:hover .qc-cg-index__sub-name {
  color: var(--brand-dark);
  border-bottom-color: var(--brand-1);
}
.qc-cg-index__sub-count {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 500;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

/* Tabella temi: tipografia coerente, leggibilità migliore */
.qc-cg-index__table-title {
  font-family: var(--body);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 700;
  margin: 0 0 14px;
}
.qc-cg-index #tabledata,
.qc-cg-index #tabledata.dataTable {
  font-family: var(--body);
  border-collapse: separate !important;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  width: 100% !important;
}
.qc-cg-index #tabledata thead th {
  background: var(--brand-tint);
  border: none;
  border-bottom: 1px solid var(--line);
  font-family: var(--body);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-deep);
  font-weight: 700;
  padding: 12px 14px;
  white-space: nowrap;
}
.qc-cg-index #tabledata tbody td {
  border: none;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  padding: 14px;
  font-size: 14px;
  color: var(--ink);
  background: #fff;
}
.qc-cg-index #tabledata tbody tr:last-child td { border-bottom: none; }
.qc-cg-index #tabledata tbody tr.odd td,
.qc-cg-index #tabledata tbody tr:nth-child(even) td { background: var(--bg); }
.qc-cg-index #tabledata td:first-child {
  font-family: var(--mono); font-weight: 600;
  letter-spacing: -0.01em; color: var(--ink-2);
}
.qc-cg-index #tabledata td:nth-child(2) {
  font-family: var(--mono); font-size: 13px;
  letter-spacing: -0.01em; color: var(--ink-2);
}
.qc-cg-index #tabledata td:nth-child(2) b { color: var(--ink); font-size: 14px; }
.qc-cg-index #tabledata td:nth-child(3) {
  font-family: var(--display); font-size: 14px;
  line-height: 1.45; color: var(--ink);
  font-variation-settings: "opsz" 24;
}
.qc-cg-index #tabledata td:nth-child(4) {
  font-family: var(--display); font-style: italic;
  font-size: 14px; color: var(--ink-2);
  font-variation-settings: "opsz" 24;
}
.qc-cg-index #tabledata td:nth-child(5) {
  text-align: center;
}

/* Stelle difficoltà nella tabella — riusa lo stesso stile del singolo esercizio */
.qc-cg-stars {
  display: inline-flex;
  gap: 2px;
  align-items: center;
  line-height: 1;
}
.qc-cg-stars__star {
  width: 14px;
  height: 14px;
  color: var(--brand);
  flex-shrink: 0;
}
.qc-cg-stars__star--empty {
  color: var(--ink-4);
}
.qc-cg-index .btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  font-family: var(--body);
  font-weight: 600;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 8px;
  letter-spacing: 0.01em;
  transition: all .15s ease;
}
.qc-cg-index .btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  transform: translateY(-1px);
}

/* Colonna "Tu" — stato personale dell'utente sull'esercizio.
   Importante: la <td> resta display: table-cell (default), il flex va su un wrapper interno,
   altrimenti la cella esce dal flusso tabellare e crea blocchi bianchi vuoti nelle righe alte. */
.qc-cg-index__user-cell {
  vertical-align: middle;
  min-width: 140px;
}
.qc-cg-index__chips {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}
.qc-cg-index__chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border-radius: 100px;
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1.1;
}
.qc-cg-index__chip-glyph {
  font-size: 12px;
  line-height: 1;
}

/* "Svolto N volte" — verde */
.qc-cg-index__chip--done {
  background: #e8efe6;
  color: #4f6e54;
  border-color: #c9d8c8;
}

/* Difficoltà che l'utente ha assegnato */
.qc-cg-index__chip--diff {
  font-family: var(--display);
  font-style: italic;
  font-weight: 500;
  letter-spacing: 0;
  font-variation-settings: "opsz" 24;
}
.qc-cg-index__chip--facile {
  background: #e8efe6;
  color: #4f6e54;
  border-color: #c9d8c8;
}
.qc-cg-index__chip--medio {
  background: #f6ecd3;
  color: #9a7117;
  border-color: #e6d3a3;
}
.qc-cg-index__chip--difficile {
  background: #f3dccf;
  color: #832b14;
  border-color: #e5bda9;
}

/* "Da rivedere" — più evidente: bordo pieno, peso 700, leggera ombra */
.qc-cg-index__chip--review {
  background: #a83a1d;
  color: #fff;
  border-color: #832b14;
  font-weight: 700;
  letter-spacing: 0.05em;
  box-shadow: 0 1px 2px rgba(168, 58, 29, 0.3);
}
.qc-cg-index__chip--review .qc-cg-index__chip-glyph {
  font-weight: 700;
}

/* Cella vuota: trattino minimal */
.qc-cg-index__chip--empty {
  background: transparent;
  color: var(--ink-4);
  font-weight: 400;
  font-size: 14px;
  padding: 0;
  border: none;
}

/* DataTables search/length controls */
.qc-cg-index .dataTables_wrapper .dataTables_filter input {
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 6px 12px;
  font-family: var(--body);
  font-size: 14px;
  margin-left: 8px;
}
.qc-cg-index .dataTables_wrapper .dataTables_filter input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-3);
}
.qc-cg-index .dataTables_wrapper .dataTables_filter label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 600;
}