/* =====================================================================
   lab - werkzeuge/tabellenwerkstatt/app.css
   Oberflaeche der Tabellenwerkstatt (frueher "Tabellenlabor"): Eingabe, Tabelle, Diagramm.
   Farben nur ueber Variablen aus css/colors.css (AGENTS.md §5).
   ===================================================================== */

.lab_tl_karte {
  background: var(--ct-color);
  border: var(--lab-border);
  border-radius: 12px;
  padding: 1.1rem 1.2rem 1.25rem;
  box-shadow: var(--lab-shadow-1);
  margin-bottom: 0;
}

.lab_tl_kopfzeile h2 { margin-bottom: 0.15rem; }

/* ---------- Grundraster: Daten links, Tabelle + Diagramm rechts ---------- */

.lab_tl_layout {
  display: grid;
  grid-template-columns: minmax(20rem, 25rem) minmax(0, 1fr);
  grid-template-areas:
    "daten tabelle"
    "daten diagramm";
  gap: 1.25rem;
  align-items: start;
  margin-bottom: 1.25rem;
}

.lab_tl_daten { grid-area: daten; }
.lab_tl_tabelle_karte { grid-area: tabelle; }
.lab_tl_diagramm_karte { grid-area: diagramm; }

@media (max-width: 60rem) {
  .lab_tl_layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "daten"
      "tabelle"
      "diagramm";
  }
}

/* ---------- Eingabe ---------- */

.lab_tl_daten label[for="tl_eingabe"] {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.lab_tl_daten textarea {
  font-family: var(--lab-mono);
  font-size: 0.88rem;
  line-height: 1.45;
  resize: vertical;
}

.lab_tl_optionen {
  display: grid;
  gap: 0.6rem;
  margin-top: 0.7rem;
}

.lab_tl_feld {
  display: block;
  font-size: 0.92rem;
}
.lab_tl_feld select { margin-top: 0.2rem; }

.lab_tl_wahl {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
}

.lab_tl_knopfzeile {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.lab_tl_meldung { margin-top: 0.5rem; }

/* ---------- Statistik ---------- */

.lab_tl_statistik {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 0.9rem;
  font-size: 0.92rem;
}

.lab_tl_statistik th,
.lab_tl_statistik td {
  border-bottom: 1px solid var(--lab-border-color);
  padding: 0.28rem 0.2rem;
  text-align: left;
}

.lab_tl_statistik th { font-weight: 600; }
.lab_tl_statistik td { text-align: right; font-family: var(--lab-mono); }

/* ---------- Tabelle ---------- */

.lab_tl_tabellenrolle {
  overflow: auto;
  max-height: 26rem;
  border: var(--lab-border);
  border-radius: 8px;
}

.lab_tl_tabelle {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

.lab_tl_tabelle th,
.lab_tl_tabelle td {
  border-bottom: 1px solid var(--lab-border-color);
  border-right: 1px solid var(--lab-border-color);
  padding: 0.3rem 0.55rem;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

.lab_tl_tabelle thead th {
  position: sticky;
  top: 0;
  background: var(--alt-div-color);
  z-index: 1;
}

.lab_tl_tabelle th .lab_tl_kopfzeile_inhalt {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.lab_tl_tabelle th span.lab_tl_kopfname {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 2rem;
  outline-offset: -2px;
}

.lab_tl_tabelle td[contenteditable="true"]:focus {
  outline: 2px solid var(--lab-ring);
  outline-offset: -2px;
  background: var(--alt-div-hover-color);
}

.lab_tl_tabelle .lab_tl_zahl { text-align: right; font-family: var(--lab-mono); font-size: 0.85rem; }

.lab_tl_tabelle tfoot td {
  background: var(--alt-div-color);
  font-weight: 600;
  font-family: var(--lab-mono);
  font-size: 0.85rem;
  text-align: right;
  position: sticky;
  bottom: 0;
}

.lab_tl_tabelle .lab_tl_leerzeile { color: var(--grey600-color); }

/* Sortierknopf in der Kopfzeile */
.lab_tl_sortieren {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: var(--lab-border);
  border-radius: 6px;
  background: var(--ct-color);
  color: var(--grey600-color);
  cursor: pointer;
}
.lab_tl_sortieren:hover { color: var(--blk-color); background: var(--alt-div-hover-color); }
.lab_tl_sortieren.is_auf, .lab_tl_sortieren.is_ab { color: var(--bt-color); border-color: var(--bt-color); }
.lab_tl_sortieren.is_auf .lab_icon { transform: rotate(-90deg); }
.lab_tl_sortieren.is_ab .lab_icon { transform: rotate(90deg); }

/* ---------- Diagramm ---------- */

.lab_tl_diagramm_optionen {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 0.7rem 1rem;
  margin-bottom: 0.8rem;
}

.lab_tl_diagramm_optionen .lab_tl_feld select { min-width: 10rem; }

.lab_tl_art {
  border: 0;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.9rem;
  padding-bottom: 0.55rem;
}

.lab_tl_buehne {
  position: relative;
  border: var(--lab-border);
  border-radius: 8px;
  background: var(--div-color);
  padding: 0.5rem;
}

.lab_tl_buehne canvas { display: block; width: 100%; height: 300px; }

.lab_tl_leerhinweis {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--grey600-color);
  margin: 0;
  padding: 1rem;
  pointer-events: none;
}

/* ---------- Aufklappbare Hilfe ---------- */

details.lab_tl_hilfe {
  border: var(--lab-border);
  border-radius: 12px;
  background: var(--ct-color);
  padding: 0.7rem 1rem;
}

details.lab_tl_hilfe summary { cursor: pointer; font-weight: 600; }

details.lab_tl_hilfe ul {
  margin: 0.6rem 0 0.2rem;
  padding-left: 1.2rem;
}

details.lab_tl_hilfe li { margin-bottom: 0.35rem; }