/* =====================================================================
   lab - werkzeuge/geschichtsblatt/app.css
   Geschichte-Arbeitsblatt: Formular links, druckfertige DIN A4 Blätter rechts.
   Österreichischer Lehrplan Mittelschule (6.–8. Schulstufe).
   Konventionen (AGENTS.md § 5):
     - Alle Klassen mit Prefix .lab_ (hier .lab_gs_)
     - Keine harten Farben, nur Variablen aus css/colors.css
     - Das Blatt bleibt in beiden Modi weiß (--lab-tv-blatt) und trägt
       dunkle Tinte (--lab-tv-blatt-text).
   ===================================================================== */

.lab_gs_layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
  margin-top: 1.25rem;
}

@media (min-width: 68rem) {
  .lab_gs_layout {
    grid-template-columns: 26rem minmax(0, 1fr);
    align-items: start;
  }
}

/* =====================================================================
   Eingabeformular & Werkzeugleiste links
   ===================================================================== */

.lab_gs_formular {
  background: var(--ct-color);
  border: var(--lab-border);
  border-radius: 12px;
  padding: 1.15rem 1.25rem 1.3rem;
  box-shadow: var(--lab-shadow-1);
}

.lab_gs_formular > label[for] {
  display: block;
  margin: 0.85rem 0 0.3rem;
  font-weight: 600;
  font-size: 0.92rem;
}

.lab_gs_formular > label[for]:first-of-type {
  margin-top: 0;
}

.lab_gs_gruppe {
  border: 1px solid var(--lab-border-color);
  border-radius: 8px;
  padding: 0.75rem 0.95rem 0.85rem;
  margin: 0.95rem 0 0;
}

.lab_gs_gruppe legend {
  padding: 0 0.35rem;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--bt-color);
}

.lab_gs_wahl {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  margin: 0.3rem 0.9rem 0.2rem 0;
  cursor: pointer;
}

.lab_gs_gruppe label[for] {
  display: block;
  margin: 0.55rem 0 0.2rem;
  font-size: 0.88rem;
  color: var(--grey600-color);
}

.lab_gs_gruppe input[type="text"],
.lab_gs_gruppe textarea,
.lab_gs_formular input[type="text"],
.lab_gs_formular textarea {
  width: 100%;
}

.lab_gs_gruppe textarea,
.lab_gs_formular textarea {
  resize: vertical;
  min-height: 4.5rem;
  font-family: inherit;
  font-size: 0.9rem;
}

.lab_gs_gruppe select,
.lab_gs_formular select {
  width: 100%;
  max-width: 100%;
}

.lab_gs_zeile {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.7rem;
}

.lab_gs_zeile label {
  font-size: 0.88rem;
  color: var(--grey600-color);
}

.lab_gs_zeile select,
.lab_gs_zeile input[type="text"] {
  flex: 1;
  min-width: 7rem;
}

.lab_gs_vorlagen_box {
  background: var(--div-color);
  border: 1px solid var(--lab-border-color);
  border-radius: 8px;
  padding: 0.8rem 0.9rem;
  margin-bottom: 1rem;
}

.lab_gs_vorlagen_box label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--bt-color);
}

.lab_gs_vorlagen_hinweis {
  font-size: 0.8rem;
  color: var(--grey600-color);
  margin: 0.4rem 0 0;
  line-height: 1.35;
}

/* Aktionsleiste bleibt beim Scrollen immer unter der Plattform-Kopfzeile sichtbar */
.lab_gs_aktionen {
  position: sticky;
  top: 3.6rem;          /* Hoehe der klebrigen Kopfzeile (css/layout.css) */
  z-index: 15;          /* unter der Kopfzeile (z-index 20) */
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
  background: var(--ct-color);
  border: var(--lab-border);
  border-radius: 12px;
  padding: 0.7rem 0.9rem;
  margin-bottom: 0.5rem;
  box-shadow: var(--lab-shadow-1);
}

@media (max-width: 40rem) {
  .lab_gs_aktionen { top: 3.2rem; }
}

.lab_gs_meldung {
  margin: 0 0 0.8rem;
  font-size: 0.85rem;
  min-height: 1.2rem;
  color: var(--bt-color);
}

.lab_gs_baustein_kopf {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.lab_gs_baustein_kopf .lab_gs_wahl {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--blk-color);
}

.lab_gs_baustein_inhalt {
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--lab-border-color);
}

.lab_gs_details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.35rem 0;
  color: var(--bt-color);
}

/* =====================================================================
   Druckfertiges Blatt (A4 Vorschau rechts)
   ===================================================================== */

.lab_gs_vorschau {
  min-width: 0;
}

.lab_gs_blatt {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

.lab_gs_seite {
  width: 100%;
  max-width: 210mm;
  min-height: 297mm;
  box-sizing: border-box;
  background: var(--lab-tv-blatt);
  color: var(--lab-tv-blatt-text);
  border: 1px solid var(--lab-tv-blatt-rand);
  border-radius: 3px;
  box-shadow: var(--lab-shadow-2);
  padding: 16mm 18mm 14mm;
  display: flex;
  flex-direction: column;
  position: relative;
  font-family: inherit;
  font-size: 10pt;
  line-height: 1.45;
}

.lab_gs_seite + .lab_gs_seite {
  margin-top: 1.5rem;
}

.lab_gs_blatt_inhalt {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

/* ---------- Kopfbox & Stile ---------- */

.lab_gs_blattkopf {
  margin-bottom: 1.1rem;
}

.lab_gs_kopfbox {
  background: var(--div-color);
  border-left: 5px solid var(--lab-tv-blatt-akzent);
  border-radius: 8px;
  padding: 0.75rem 1.1rem 0.7rem;
  position: relative;
}

.lab_gs_kopf_mitte .lab_gs_kopfbox {
  text-align: center;
  border-left: 0;
}

.lab_gs_kopfzeile {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lab-tv-blatt-text);
  opacity: 0.65;
  margin-bottom: 0.2rem;
}

.lab_gs_titel_zeile {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.lab_gs_kopf_mitte .lab_gs_titel_zeile {
  justify-content: center;
}

.lab_gs_titel {
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
  color: var(--lab-tv-blatt-text);
}

.lab_gs_fachklasse {
  font-size: 0.9rem;
  color: var(--lab-tv-blatt-text);
  opacity: 0.75;
  white-space: nowrap;
}

.lab_gs_untertitel {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  color: var(--lab-tv-blatt-text);
  opacity: 0.8;
  font-style: italic;
}

.lab_gs_namedatum {
  display: flex;
  justify-content: space-between;
  gap: 2.5rem;
  font-size: 0.88rem;
  margin: 0.85rem 0 0.15rem;
}

.lab_gs_namedatum span {
  flex: 1;
  border-bottom: 1px solid var(--lab-tv-blatt-text);
  padding: 0 0.35rem 0.15rem;
}

/* Stile: modern & klassisch */

.lab_gs_kopf_linie .lab_gs_kopfbox {
  background: none;
  border-left: 0;
  border-radius: 0;
  padding: 0.1rem 0 0.5rem;
  border-bottom: 2.5px solid var(--lab-tv-blatt-akzent);
}

.lab_gs_kopf_band .lab_gs_kopfbox {
  background: var(--lab-tv-blatt-akzent);
  border-left: 0;
  border-radius: 8px;
  padding: 0.8rem 1.1rem;
}

.lab_gs_kopf_band .lab_gs_titel,
.lab_gs_kopf_band .lab_gs_fachklasse,
.lab_gs_kopf_band .lab_gs_kopfzeile {
  color: var(--lab-tv-blatt);
  opacity: 1;
}

.lab_gs_kopf_band .lab_gs_untertitel {
  color: var(--lab-tv-blatt);
  opacity: 0.9;
}

.lab_gs_kopf_schlicht .lab_gs_kopfbox {
  background: none;
  border-left: 0;
  border-radius: 0;
  padding: 0.1rem 0 0;
}

.lab_gs_kopf_karte .lab_gs_kopfbox {
  background: none;
  border: 1.25px solid var(--lab-tv-blatt-text);
  border-radius: 8px;
  padding: 0.85rem 1.1rem;
  position: relative;
}

.lab_gs_kopf_karte .lab_gs_kopfbox::before {
  content: "";
  position: absolute;
  top: -1.25px;
  left: 1.1rem;
  width: 3.2rem;
  height: 3.5px;
  background: var(--lab-tv-blatt-akzent);
}

.lab_gs_kopf_balken .lab_gs_kopfbox {
  background: none;
  border-left: 0;
  border-radius: 0;
  border-top: 6px solid var(--lab-tv-blatt-akzent);
  padding: 0.55rem 0 0.3rem;
}

.lab_gs_kopf_doppellinie .lab_gs_kopfbox {
  background: none;
  border-left: 0;
  border-radius: 0;
  border-bottom: 3px solid var(--lab-tv-blatt-text);
  padding: 0.1rem 0 0.4rem;
  position: relative;
}

.lab_gs_kopf_doppellinie .lab_gs_kopfbox::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 1.5px;
  background: var(--lab-tv-blatt-text);
}

.lab_gs_kopf_kopfkasten .lab_gs_kopfbox {
  background: none;
  border: 3.5px double var(--lab-tv-blatt-text);
  border-radius: 0;
  padding: 0.7rem 1rem;
}

.lab_gs_rahmenseite {
  border: 3.5px double var(--lab-tv-blatt-text);
}

.lab_gs_kopf_rahmen .lab_gs_kopfbox {
  background: none;
  border-left: 0;
  padding: 0.1rem 0 0;
}

/* ---------- Fußzeile ---------- */

.lab_gs_blattfuss {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--lab-tv-blatt-text);
  opacity: 0.65;
  border-top: 1px solid var(--lab-tv-blatt-linie);
  padding-top: 0.4rem;
  margin-top: auto;
}

/* =====================================================================
   Aufgabenblöcke auf dem Blatt
   ===================================================================== */

.lab_gs_block {
  border: 1px solid var(--lab-tv-blatt-rand);
  border-radius: 7px;
  padding: 0.85rem 1rem 0.95rem;
  background: #ffffff;
  position: relative;
}

.lab_gs_block_kopf {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-bottom: 0.45rem;
}

.lab_gs_block_nr {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--lab-tv-blatt-akzent);
  color: var(--lab-tv-blatt);
  font-weight: 700;
  font-size: 0.82rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.lab_gs_block_titel {
  font-weight: 700;
  font-size: 1.02rem;
  margin: 0;
  color: var(--lab-tv-blatt-text);
}

.lab_gs_anweisung {
  font-size: 0.88rem;
  color: var(--lab-tv-blatt-text);
  opacity: 0.82;
  margin: 0.15rem 0 0.55rem;
  font-style: italic;
}

/* 1. Quellenarbeit */

.lab_gs_quelle {
  border-left: 3.5px solid var(--lab-tv-blatt-akzent);
  background: rgba(0, 0, 0, 0.02);
  padding: 0.65rem 0.9rem;
  border-radius: 0 6px 6px 0;
  margin: 0.5rem 0 0.75rem;
}

.lab_gs_quelle_text {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.95rem;
  line-height: 1.5;
  font-style: italic;
  margin: 0;
}

.lab_gs_quelle_autor {
  font-size: 0.82rem;
  text-align: right;
  margin: 0.35rem 0 0;
  color: var(--lab-tv-blatt-text);
  opacity: 0.78;
  font-weight: 600;
}

.lab_gs_fragen_liste {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.lab_gs_frage_item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.lab_gs_frage_titel {
  font-weight: 600;
  font-size: 0.88rem;
}

/* Schreiblinien */

.lab_gs_schreiblinien {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.2rem;
}

.lab_gs_linie {
  height: 1.1rem;
  border-bottom: 1px solid var(--lab-tv-blatt-linie);
  width: 100%;
}

/* 2. Chronologie / Zeitleiste */

.lab_gs_chronologie_liste {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.lab_gs_chronologie_eintrag {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.92rem;
}

.lab_gs_kaestchen {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border: 1.5px solid var(--lab-tv-blatt-text);
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.88rem;
  flex-shrink: 0;
  background: #ffffff;
}

.lab_gs_chronologie_text {
  flex: 1;
}

/* 3. Lückentext & Wortkasten */

.lab_gs_wortkasten {
  border: 1px dashed var(--lab-tv-blatt-rand);
  background: rgba(0, 0, 0, 0.015);
  border-radius: 6px;
  padding: 0.5rem 0.8rem;
  margin-bottom: 0.7rem;
}

.lab_gs_wortkasten_titel {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.35rem;
  opacity: 0.75;
}

.lab_gs_chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.lab_gs_chip {
  display: inline-block;
  background: var(--lab-tv-blatt);
  border: 1px solid var(--lab-tv-blatt-rand);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  font-size: 0.84rem;
  font-weight: 600;
}

.lab_gs_lueckentext_absatz {
  font-size: 0.95rem;
  line-height: 1.85;
  margin: 0;
}

.lab_gs_luecke {
  display: inline-block;
  min-width: 4.8rem;
  border-bottom: 1.5px solid var(--lab-tv-blatt-text);
  margin: 0 0.2rem;
  text-align: center;
  font-weight: 600;
  padding: 0 0.25rem;
}

/* 4. Begriffszuordnung */

.lab_gs_zuordnung_tabelle {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.4rem;
  font-size: 0.9rem;
}

.lab_gs_zuordnung_tabelle td {
  padding: 0.35rem 0.5rem;
  vertical-align: middle;
}

.lab_gs_zuordnung_links {
  width: 45%;
  border-right: 1px solid var(--lab-tv-blatt-linie);
  padding-right: 0.8rem !important;
}

.lab_gs_zuordnung_rechts {
  width: 55%;
  padding-left: 0.8rem !important;
}

.lab_gs_zuordnung_label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.8rem;
  margin-right: 0.4rem;
}

/* 5. Richtig oder Falsch */

.lab_gs_wf_liste {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.lab_gs_wf_zeile {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  border-bottom: 1px dotted var(--lab-tv-blatt-rand);
  padding-bottom: 0.4rem;
}

.lab_gs_wf_zeile:last-child {
  border-bottom: 0;
}

.lab_gs_wf_haupt {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.8rem;
  font-size: 0.9rem;
}

.lab_gs_wf_text {
  flex: 1;
}

.lab_gs_wf_opt {
  display: inline-flex;
  gap: 0.6rem;
  font-size: 0.85rem;
  white-space: nowrap;
}

.lab_gs_wf_box {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.lab_gs_wf_korrektur {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 0.82rem;
  opacity: 0.85;
}

.lab_gs_wf_korrektur_linie {
  flex: 1;
  border-bottom: 1px solid var(--lab-tv-blatt-linie);
  height: 0.9rem;
}

/* 6. Offene Fragen / Urteilskompetenz */

.lab_gs_offene_liste {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 0.5rem;
}

.lab_gs_offene_frage {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.lab_gs_offene_frage_titel {
  font-weight: 600;
  font-size: 0.92rem;
}

/* =====================================================================
   Lösungsblatt-Stile
   ===================================================================== */

.lab_gs_loesungsblatt {
  border-color: var(--bt-color);
}

.lab_gs_loesungsblatt .lab_gs_titel {
  color: var(--bt-color);
}

.lab_gs_loesung_antwort {
  color: var(--bt-color);
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: 0.15rem;
}

.lab_gs_loesung_markiert {
  color: var(--bt-color);
  font-weight: 700;
}

.lab_gs_loesungsplakette {
  display: inline-block;
  background: var(--bt-color);
  color: var(--lab-tv-blatt);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  margin-left: 0.5rem;
  vertical-align: middle;
}

/* =====================================================================
   Druck-Layout (@media print)
   ===================================================================== */

@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  header,
  nav,
  footer,
  #lab_kopf,
  #lab_fuss,
  .lab_gs_formular,
  .lab_gs_aktionen,
  .lab_gs_meldung,
  .lab_sr_only {
    display: none !important;
  }

  .lab_shell,
  .lab_shell_breit,
  .lab_main {
    max-width: none !important;
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .lab_gs_layout {
    display: block !important;
    margin: 0 !important;
  }

  .lab_gs_vorschau {
    width: 100% !important;
  }

  .lab_gs_blatt {
    gap: 0 !important;
  }

  .lab_gs_seite {
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 14mm 15mm 12mm !important;
    max-width: none !important;
    width: 100% !important;
    min-height: auto !important;
    break-after: page;
    page-break-after: always;
  }

  .lab_gs_seite:last-of-type {
    break-after: auto;
    page-break-after: auto;
  }

  .lab_gs_block {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}

/* Blatt-Hilfe: mit dem App-CSS auch in HTML/PDF verfügbar. */
.lab_bh_gruppe { min-width: 0; margin: 0 0 1rem; padding: .8rem; border: 1px solid var(--lab-border-color); border-radius: .6rem; }
.lab_bh_gruppe select, .lab_bh_gruppe textarea { width: 100%; min-width: 0; max-width: 100%; }
.lab_bh_gruppe label { display: block; margin-top: .5rem; }
.lab_bh_hinweis { font-size: .8rem; color: var(--grey600-color); margin: .5rem 0; }
.lab_bh_eigene { margin-top: .7rem; }
.lab_bh_zeile { font-size: .85em; line-height: 1.5; margin: .25em 0 .65em; color: var(--lab-tv-blatt-text); font-style: normal; font-weight: normal; white-space: pre-wrap; overflow-wrap: anywhere; unicode-bidi: isolate; }
.lab_bh_zeile[dir="rtl"] { text-align: right; }
.lab_bh_zeile[hidden], .lab_bh_eigene[hidden] { display: none; }
@media print { .lab_bh_gruppe { display: none; } }
/* Lange Fachnamen und Papier-Ränder dürfen die mobile Blattansicht
   nicht über den Bildschirm schieben. Druckmaße bleiben unberührt. */
.lab_gs_fachklasse { white-space: normal; overflow-wrap: anywhere; }
.lab_gs_titel_zeile { flex-wrap: wrap; }
.lab_tb_gruppe, .lab_tb_karte { min-width: 0; }
.lab_tb_formular select, .lab_tb_formular input, .lab_tb_formular textarea { max-width: 100%; }
.lab_gs_kopfbox, .lab_geo_kopfbox { background: var(--lab-tv-blatt-flaeche); }
@media screen and (max-width: 40rem) {
  .lab_gs_seite, .lab_geo_seite { padding: 1rem; }
  .lab_gs_namedatum { gap: .5rem; flex-wrap: wrap; }
  .lab_rb_seite, .lab_sa_seite, .lab_gb_seite, .lab_uh_seite,
  .lab_db_seite, .lab_en_seite, .lab_tb_seite, .lab_ra_seite {
    aspect-ratio: auto; height: auto; display: flow-root;
  }
  .lab_rb_aufgaben, .lab_sa_aufgaben, .lab_db_aufgaben, .lab_en_aufgaben { column-count: 1 !important; }
  .lab_rb_blattfuss, .lab_sa_blattfuss, .lab_gb_blattfuss, .lab_uh_blattfuss,
  .lab_db_blattfuss, .lab_en_blattfuss, .lab_tb_blattfuss, .lab_ra_blattfuss { position: static; }
}