/* =====================================================================
   lab - werkzeuge/sandkasten/app.css
   Sandkasten (HTML/CSS/JS): Werkzeugleiste, Editor mit Tabs,
   abgeschottete Vorschau und Konsole.
   Konventionen (AGENTS.md §5):
     - Alle Klassen mit Prefix .lab_ (hier .lab_sk_ fuer Sandkasten)
     - Keine harten Farben, nur Variablen aus css/colors.css
   ===================================================================== */

/* ---------- Werkzeugleiste ---------- */
.lab_sk_leiste {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.6rem;
  padding: 0.7rem 0.8rem;
  background: var(--ct-color);
  border: var(--lab-border);
  border-radius: 12px;
  box-shadow: var(--lab-shadow-1);
}

.lab_sk_leiste .lab_btn {
  padding: 0.45rem 0.7rem;
}

.lab_sk_wahl {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
  white-space: nowrap;
}

.lab_sk_vorlage,
.lab_sk_name {
  min-width: 0;
}

.lab_sk_vorlage select {
  width: auto;
  max-width: 16rem;
  padding: 0.45rem 0.5rem;
  font-size: 0.92rem;
}

.lab_sk_name input {
  width: 10rem;
  padding: 0.45rem 0.5rem;
  font-size: 0.92rem;
}

.lab_sk_meldung {
  margin: 0 0.2rem 0.6rem;
  min-height: 1.2em;
}

.lab_sk_meldung:empty {
  display: none;
}

/* ---------- Arbeitsfeld: Editor links, Vorschau rechts ---------- */
.lab_sk_layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}

@media (min-width: 62rem) {
  .lab_sk_layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.lab_sk_karte {
  background: var(--ct-color);
  border: var(--lab-border);
  border-radius: 14px;
  padding: 1rem 1.1rem 1.1rem;
  box-shadow: var(--lab-shadow-1);
  min-width: 0;
}

.lab_sk_kopfzeile {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}

.lab_sk_titel {
  font-size: 1rem;
  margin: 0;
}

.lab_sk_kopfzeile .lab_btn {
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
}

/* ---------- Editor mit Tabs ---------- */
.lab_sk_tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  margin-bottom: 0.6rem;
}

.lab_sk_tabs [role="tablist"] {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.2rem;
  background: var(--alt-div-color);
  border: var(--lab-border);
  border-radius: 9px;
}

.lab_sk_tab {
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border: 0;
  border-radius: 7px;
  background: none;
  color: var(--grey600-color);
  cursor: pointer;
}

.lab_sk_tab:hover {
  color: var(--blk-color);
}

.lab_sk_tab.is_aktiv {
  background: var(--ct-color);
  color: var(--link-color);
  box-shadow: var(--lab-shadow-1);
}

.lab_sk_feld {
  width: 100%;
  min-height: 26rem;
  resize: vertical;
  font-family: var(--lab-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  tab-size: 2;
  white-space: pre;
  overflow: auto;
}

.lab_sk_fusszeile {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

/* ---------- Vorschau ---------- */
.lab_sk_rahmen {
  display: block;
  width: 100%;
  height: 26rem;
  background: var(--div-color);
  border: var(--lab-border);
  border-radius: 10px;
}

/* ---------- Konsole ---------- */
.lab_sk_konsole {
  min-height: 8rem;
  max-height: 14rem;
  overflow: auto;
  background: var(--div-color);
  border: var(--lab-border);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  font-family: var(--lab-mono);
  font-size: 0.84rem;
  line-height: 1.55;
}

.lab_sk_leerhinweis {
  color: var(--grey600-color);
  margin: 0.4rem 0;
}

.lab_sk_zeile {
  display: flex;
  gap: 0.6rem;
  padding: 0.15rem 0;
  border-bottom: 1px dashed var(--lab-border-color);
  overflow-wrap: anywhere;
}

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

.lab_sk_art {
  flex: none;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--grey600-color);
  padding-top: 0.15rem;
}

.lab_sk_zeile.is_warnung .lab_sk_art {
  color: var(--lab-beta-fg);
}

.lab_sk_zeile.is_fehler .lab_sk_art {
  color: var(--lab-fehler-fg);
  font-weight: 700;
}

.lab_sk_zeile.is_fehler {
  color: var(--lab-fehler-fg);
}

/* ---------- Hinweise ---------- */
.lab_sk_hilfe {
  margin-top: 1rem;
  background: var(--ct-color);
  border: var(--lab-border);
  border-radius: 12px;
  padding: 0.8rem 1.1rem;
  box-shadow: var(--lab-shadow-1);
}

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

.lab_sk_hilfetext {
  margin: 0.7rem 0 0.2rem;
  padding-left: 1.2rem;
}

.lab_sk_hilfetext li {
  margin-bottom: 0.35rem;
}

/* ---------- Kleine Schirme ---------- */
@media (max-width: 30rem) {
  .lab_sk_karte {
    padding: 1rem 1rem 1.1rem;
  }
  .lab_sk_feld,
  .lab_sk_rahmen {
    min-height: 18rem;
    height: 18rem;
  }
  .lab_sk_name input {
    width: 100%;
  }
}

/* ---------- Drucken: nur Vorschau und Konsole ---------- */
@media print {
  .lab_sk_leiste,
  .lab_sk_meldung,
  .lab_sk_fusszeile,
  #sk_konsole_leeren,
  .lab_sk_hilfe {
    display: none !important;
  }
  .lab_sk_layout {
    display: block;
  }
  .lab_sk_karte {
    border: 0;
    box-shadow: none;
    padding: 0;
  }
}

/* ------------------------------------------------------------------
   Nachfrage-Dialog (statt Browser-Dialog)
   ------------------------------------------------------------------ */
.lab_sk_frage {
  position: fixed;
  inset: 0;
  z-index: 60;               /* ueber dem abgeschotteten iframe */
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.lab_sk_frage[hidden] { display: none; }

.lab_sk_frage_kasten {
  width: 100%;
  max-width: 26rem;
  background: var(--ct-color);
  color: var(--blk-color);
  border: var(--lab-border);
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
  box-shadow: var(--lab-shadow-2);
}
.lab_sk_frage_kasten h2 { font-size: 1.1rem; margin: 0 0 0.4rem; }
.lab_sk_frage_kasten p { margin: 0 0 0.9rem; }
.lab_sk_frage_reihe {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}