@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,600;1,400&family=JetBrains+Mono:wght@400;500&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  --bg:        #0f1117;
  --bg2:       #171b26;
  --bg3:       #1e2333;
  --border:    #2a2f45;
  --border2:   #363d58;
  --text:      #e8eaf0;
  --text2:     #8b92b0;
  --text3:     #555e7a;
  --accent:    #4f8ef7;
  --accent2:   #2563d4;
  --green:     #22c55e;
  --red:       #ef4444;
  --amber:     #f59e0b;
  --sidebar-w: 240px;
  --radius:    8px;
  --radius-lg: 14px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.18s ease;
}

/* ── Light Theme ── */
[data-theme="light"] {
  --bg:        #f5f6fa;
  --bg2:       #ffffff;
  --bg3:       #eaecf4;
  --border:    #d0d4e8;
  --border2:   #b8bdd4;
  --text:      #1a1d2e;
  --text2:     #4a5080;
  --text3:     #8b92b0;
  --accent:    #3b7ef6;
  --accent2:   #2563d4;
  --green:     #16a34a;
  --red:       #dc2626;
  --amber:     #d97706;
  --shadow:    0 4px 24px rgba(0,0,0,0.08);
}

/* ── Sepia Theme ── */
[data-theme="sepia"] {
  --bg:        #f4efe6;
  --bg2:       #fdf8f0;
  --bg3:       #ece4d4;
  --border:    #d4c4a8;
  --border2:   #c4b090;
  --text:      #2c1f0e;
  --text2:     #6b5440;
  --text3:     #9c8570;
  --accent:    #8b5e3c;
  --accent2:   #6b4423;
  --green:     #5a7a3a;
  --red:       #a83232;
  --amber:     #b07820;
  --shadow:    0 4px 24px rgba(0,0,0,0.1);
}

/* ── Forest Theme (grün/weiß) ── */
[data-theme="forest"] {
  --bg:        #f0f7f0;
  --bg2:       #ffffff;
  --bg3:       #e0efe0;
  --border:    #b8d4b8;
  --border2:   #9abf9a;
  --text:      #1a2e1a;
  --text2:     #3d6b3d;
  --text3:     #6b9a6b;
  --accent:    #2d7a2d;
  --accent2:   #1a5c1a;
  --green:     #22a822;
  --red:       #c0392b;
  --amber:     #d4870a;
  --shadow:    0 4px 24px rgba(0,0,0,0.08);
}

/* ── Kompakt-Modus ── */
[data-kompakt="1"] {
  font-size: 13px !important;
}
[data-kompakt="1"] .aufgabe-karte,
[data-kompakt="1"] .arbeit-karte {
  padding: 10px 12px !important;
}
[data-kompakt="1"] .karte-titel,
[data-kompakt="1"] .arbeit-karte-titel {
  font-size: 0.9rem !important;
}
[data-kompakt="1"] .view-header {
  padding: 12px 16px !important;
}
[data-kompakt="1"] .nav-btn {
  padding: 8px 12px !important;
  font-size: 0.8rem !important;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  height: calc(var(--vh, 1vh) * 100);
  overflow: hidden;
}
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: 0.95rem; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  height: calc(var(--vh, 1vh) * 100);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 12px;
  gap: 4px;
  overflow-y: auto;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text);
}
.sidebar-logo svg { width: 22px; height: 22px; color: var(--accent); }
.nav-section { display: flex; flex-direction: column; gap: 3px; }
.nav-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text3);
  padding: 10px 10px 4px;
}
.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: none;
  background: transparent;
  color: var(--text2);
  font-size: 0.88rem;
  transition: background var(--transition), color var(--transition);
  text-align: left;
  width: 100%;
}
.nav-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-label-btn {
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
  color: var(--text2);
  padding: 9px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-label-btn.active { background: var(--accent); color: #fff; font-weight: 500; }
.nav-label-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-btn:hover { background: var(--bg3); color: var(--text); }
.nav-btn.active { background: var(--accent); color: #fff; font-weight: 500; }
.nav-label.active { background: var(--accent); color: #fff; border-radius: 6px; padding: 4px 8px; margin: 0 -8px 4px -8px; }
.nav-btn.btn-create {
  background: var(--bg3);
  color: var(--accent);
  border: 1px solid var(--border2);
}
.nav-btn.btn-create:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.nav-section-bottom { margin-top: auto; }

/* ── Main ── */
.main {
  flex: 1;
  padding: 24px;
  height: calc(var(--vh, 1vh) * 100);
  overflow-y: auto;
  min-width: 0;
  box-sizing: border-box;
}
.view { animation: fadeIn 0.2s ease; }
.view.hidden { display: none; }
@keyframes fadeIn { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:none; } }
/* ── View Header ── */
.view-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}
.view-header h1 { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.03em; }
.view-header .subtitle { color: var(--text2); font-size: 0.88rem; margin-top: 3px; }
.header-actions { display: flex; flex-direction: column; gap: 6px; min-width: 0; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.86rem;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent2); }
.btn-ghost { background: transparent; color: var(--text2); border-color: var(--border2); }
.btn-ghost:hover { background: var(--bg3); color: var(--text); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger:hover { background: #c53030; }
.btn-export { background: transparent; color: var(--text2); border-color: var(--border2); font-size: 0.78rem; padding: 4px 10px; }
.btn-export:hover { background: var(--bg2); color: var(--text); border-color: var(--border); }
.btn-sm { padding: 5px 11px; font-size: 0.80rem; }
.btn-tiny {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 4px; border: 1px solid var(--border2);
  background: var(--bg3); color: var(--accent); font-size: 0.76rem;
  cursor: pointer; font-family: inherit;
}
.btn-tiny:hover { background: var(--accent); color: #fff; }
.mt-2 { margin-top: 10px; }

/* ── Forms ── */
.form-container { max-width: 860px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-group label {
  font-size: 0.80rem; font-weight: 600; color: var(--text2);
  letter-spacing: 0.02em; display: flex; align-items: center; gap: 8px;
}
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 130px; }
.form-row .form-group.flex-2 { flex: 2; }

input[type="text"], input[type="date"], input[type="number"], textarea, select {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 8px 12px;
  transition: border-color var(--transition);
  width: 100%;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
input::placeholder, textarea::placeholder { color: var(--text3); }
textarea { resize: vertical; }
select option { background: var(--bg2); }

.search-input {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); padding: 7px 13px; min-width: 200px;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.search-sm { min-width: 150px; padding: 6px 11px; font-size: 0.83rem; }
.filter-select {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); padding: 7px 11px;
}
.filter-select:focus { outline: none; border-color: var(--accent); }
.form-actions {
  display: flex; gap: 10px; justify-content: flex-end;
  margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border);
}

/* ── Quill ── */
.editor-toolbar-hint {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.76rem; color: var(--text3); padding: 4px 0;
}
.editor-toolbar-hint code {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 3px; padding: 1px 5px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.73rem; color: var(--amber);
}
.quill-editor { background: var(--bg2); border-radius: var(--radius); border: 1px solid var(--border); }
.ql-toolbar.ql-snow {
  background: var(--bg3); border: none !important;
  border-bottom: 1px solid var(--border) !important;
  border-radius: var(--radius) var(--radius) 0 0;
}
.ql-container.ql-snow { border: none !important; border-radius: 0 0 var(--radius) var(--radius); }
.ql-editor { color: var(--text) !important; font-family: 'Outfit', sans-serif !important; font-size: 0.93rem !important; min-height: 150px; line-height: 1.7; }
.ql-editor.ql-blank::before { color: var(--text3) !important; font-style: normal !important; }
.ql-snow .ql-stroke { stroke: var(--text2) !important; }
.ql-snow .ql-fill { fill: var(--text2) !important; }
.ql-snow .ql-picker { color: var(--text2) !important; }
.ql-snow .ql-picker-options { background: var(--bg3) !important; border-color: var(--border) !important; }
.ql-snow.ql-toolbar button:hover .ql-stroke,
.ql-snow.ql-toolbar button.ql-active .ql-stroke { stroke: var(--accent) !important; }

/* ── Lösungsschritte ── */
.loesungsschritt {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 12px; margin-bottom: 8px;
}
.schritt-handle { cursor: grab; color: var(--text3); padding-top: 6px; }
.schritt-body { flex: 1; }
.schritt-editor { min-height: 55px; margin-bottom: 6px; }
.schritt-punkte-row { display: flex; align-items: center; gap: 8px; }
.schritt-punkte-row label { font-size: 0.78rem; color: var(--text2); }
.schritt-punkte-input { width: 75px !important; padding: 4px 8px !important; font-family: 'JetBrains Mono', monospace !important; font-size: 0.86rem !important; }
.schritt-loeschen { background: transparent; border: none; color: var(--text3); font-size: 1rem; padding: 3px; border-radius: 4px; }
.schritt-loeschen:hover { color: var(--red); }
.punkte-gesamt { background: transparent; color: var(--text2); font-size: 0.70rem; font-weight: 600; padding: 2px 8px; }

/* ── Aufgaben Grid ── */
.aufgaben-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.aufgabe-karte {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 16px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color var(--transition), transform var(--transition); cursor: pointer;
}
.aufgabe-karte:hover { border-color: var(--accent); transform: translateY(-2px); }
.aufgabe-karte.karte-ausgewaehlt { border-color: var(--accent); border-width: 2px; background: color-mix(in srgb, var(--accent) 8%, var(--bg2)); }

.karte-slider-zeile { display: flex; align-items: center; justify-content: center; gap: 2px; }
.karte-header { display: flex; align-items: flex-start; justify-content: center; gap: 8px; }
.karte-titel { font-weight: 600; font-size: 0.97rem; line-height: 1.35; text-align: center; }
.karte-badges { display: flex; gap: 5px; flex-wrap: wrap; }
.badge { display: inline-block; font-size: 0.68rem; font-weight: 600; padding: 2px 7px; border-radius: 20px; background: var(--bg3); border: 1px solid var(--border2); color: var(--text2); }
.badge-fach { border-color: var(--accent); color: var(--accent); }
.badge-punkte { border-color: var(--border2); color: var(--text2); }
.karte-vorschau { font-size: 0.82rem; color: var(--text2); line-height: 1.5; overflow: hidden; height: 4.5em; mask-image: linear-gradient(to bottom, black 60%, transparent 100%); }
/* Ergaenzung 14.07.2026: Tabellen in der kompakten Aufgaben-Kachel-Vorschau (aufgaben-grid) -
   htmlZuVorschauText() behaelt Tabellen-HTML bewusst bei (entfernt nur floats/Bilder ohne
   data-tbl), aber es gab dafuer bisher kein CSS. Bleibt trotzdem durch height:4.5em+overflow
   abgeschnitten/ausgeblendet - das ist gewollt (kompakte Vorschau). */
.karte-vorschau table { border-collapse: collapse; font-size: 0.9em; margin: 4px 0; }
.karte-vorschau table td, .karte-vorschau table th { border: 1px solid var(--border2); padding: 2px 6px; }
.karte-vorschau table th { background: var(--bg3); font-weight: 600; }
.karte-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 10px; border-top: 1px solid var(--border); min-height: 24px; }
.karte-meta { font-size: 0.73rem; color: var(--text3); }
.karte-aktionen { display: flex; gap: 6px; }
.karte-btn { background: transparent; border: 1px solid var(--border2); border-radius: 5px; color: var(--text2); padding: 3px 8px; font-size: 0.76rem; transition: all var(--transition); cursor: pointer; font-family: inherit; }
.karte-btn:hover { background: var(--bg3); color: var(--text); }
.karte-btn.bearbeiten:hover { border-color: var(--accent); color: var(--accent); }
.karte-btn.loeschen:hover { border-color: var(--red); color: var(--red); }

/* ── Klassenarbeiten Grid ── */
.gruppen-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.klassenarbeiten-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.arbeit-karte {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 18px; display: flex; flex-direction: column; gap: 12px;
  transition: border-color var(--transition), transform var(--transition); cursor: pointer;
}
.arbeit-karte:hover { border-color: var(--accent); transform: translateY(-2px); }
.arbeit-karte-titel { font-weight: 700; font-size: 1.05rem; margin-top: 6px; }
.arbeit-karte-stats { display: flex; gap: 14px; font-size: 0.82rem; color: var(--text2); flex-wrap: wrap; }
.stat-wert { color: var(--text2); font-weight: 600; }
.stat { display: flex; align-items: center; gap: 5px; }
.stat-wert { font-weight: 600; color: var(--text2); font-family: 'JetBrains Mono', monospace; }
.arbeit-karte-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 10px; border-top: 1px solid var(--border); }
.arbeit-export-btns { display: flex; gap: 5px; }

/* ── Klassenarbeit Form Layout ── */
.klassenarbeit-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; min-height: 0; }
.arbeit-form-rechts {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  position: sticky; top: 20px; max-height: calc(100vh - 80px);
  display: flex; flex-direction: column; overflow: hidden;
}
.pool-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 0.86rem; font-weight: 600; }
.pool-liste-alt { flex: 1; overflow-y: auto; padding: 8px; display: flex; flex-direction: column; gap: 5px; }
.pool-item { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 9px 11px; cursor: pointer; transition: all var(--transition); }
.pool-item:hover { border-color: var(--accent); }
.pool-item.ausgewaehlt { opacity: 0.4; cursor: default; border-color: var(--green); }
.pool-item-titel { font-size: 0.86rem; font-weight: 500; margin-bottom: 2px; }
.pool-item-meta { font-size: 0.73rem; color: var(--text2); }

.aufgaben-dnd-liste {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius);
  min-height: 100px; padding: 7px; display: flex; flex-direction: column; gap: 5px; overflow-x: hidden;
}
.dnd-empty { text-align: center; color: var(--text3); font-size: 0.83rem; padding: 18px; line-height: 1.7; }
.dnd-item {
  display: flex; align-items: center; gap: 9px;
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 8px 11px;
}
.dnd-item.drag-over { border-color: var(--accent); }
.dnd-handle { color: var(--text3); cursor: grab; }
.dnd-handle:active { cursor: grabbing; }
.dnd-nr { background: var(--bg3); border: 1px solid var(--border2); border-radius: 4px; padding: 1px 6px; font-size: 0.72rem; font-family: 'JetBrains Mono', monospace; color: var(--text2); min-width: 26px; text-align: center; }
.dnd-titel { flex: 1; font-size: 0.86rem; }
.dnd-punkte { font-size: 0.76rem; color: var(--green); font-family: 'JetBrains Mono', monospace; }
.dnd-remove { background: transparent; border: none; color: var(--text3); cursor: pointer; padding: 2px; }
.dnd-remove:hover { color: var(--red); }

/* ── Detail View ── */
.detail-inhalt { max-width: 100%; display: flex; gap: 0; align-items: start; }
.detail-inhalt-divider { width: 6px; min-width: 6px; cursor: col-resize; background: var(--border); border-radius: 3px; margin: 0 6px; align-self: stretch; min-height: 100px; transition: background 0.2s; }
.detail-inhalt-divider:hover { background: var(--accent); }
.detail-links { min-width: 0; }
.detail-vorschau-panel { min-width: 0; display: flex; flex-direction: column; gap: 0; }
.detail-vorschau-seite { background: #fff; color: #000; border-radius: 4px; box-shadow: 0 2px 16px rgba(0,0,0,0.18); padding: 28px 65px 32px 65px; font-family: 'Times New Roman', serif; font-size: 12pt; line-height: 1.5; min-height: 1123px; margin-bottom: 20px; }
.detail-vorschau-seite * { box-sizing: border-box; } .detail-vorschau-seite img { max-width: 55%; height: auto; display: block; margin: 6px 0 6px 28px; }
.vorschau-kopfzeile { display: grid; grid-template-columns: 1fr 1fr 1fr; font-size: 11pt; padding-bottom: 6px; border-bottom: 1.5px solid #000; margin-bottom: 14px; margin-right: -20px; }
.vorschau-kopfzeile-mitte { text-align: center; }
.vorschau-kopfzeile-rechts { text-align: right; }
.vorschau-teil-titel { text-align: center; font-weight: bold; font-size: 14pt; margin: 12px 0 4px; }
.vorschau-name-zeile { font-size: 12pt; margin-bottom: 8px; }
.vorschau-aufgabe { margin-bottom: 10px; }
.vorschau-aufgabe-zeile { display: flex; justify-content: space-between; font-weight: bold; font-size: 12pt; margin-bottom: 2px; padding-right: 40px; }
.vorschau-aufgabe-punkte { font-weight: normal; font-size: 10pt; }
.vorschau-aufgabe-inhalt { display: none; }
.vorschau-ta { display: flex; gap: 6px; margin-left: 20px; margin-bottom: 6px; font-size: 12pt; align-items: baseline; } .vorschau-ta .katex-display { display: inline-block !important; margin: 0 !important; vertical-align: middle; } .vorschau-ta .katex { display: inline-block !important; }
.vorschau-ta-buchstabe { flex-shrink: 0; }
.vorschau-ewh-label { font-weight: bold; font-size: 10pt; margin: 8px 0 4px 20px; }
.vorschau-ewh-tabelle { width: 100%; border-collapse: collapse; font-size: 10pt; } .vorschau-ewh-tabelle th, .vorschau-ewh-tabelle td { padding: 2px 6px; border: 1px solid #000; } .vorschau-ewh-tabelle th:last-child, .vorschau-ewh-tabelle td:last-child, .vorschau-ewh-tabelle th:nth-last-child(2), .vorschau-ewh-tabelle td:nth-last-child(2), .vorschau-ewh-tabelle th:nth-last-child(3), .vorschau-ewh-tabelle td:nth-last-child(3) { width: 55px; text-align: center; white-space: nowrap; }
.vorschau-ewh-tabelle th, .vorschau-ewh-tabelle td { border: 1px solid #000; padding: 2px 6px; }
.vorschau-ewh-tabelle th { font-weight: bold; }
.vorschau-ewh-tabelle td:last-child, .vorschau-ewh-tabelle th:last-child { text-align: center; width: 50px; }
.vorschau-label { font-size: 0.75rem; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; margin-top: 24px; clear: both; display: block; }
.detail-meta-box { display: flex; gap: 18px; flex-wrap: wrap; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 14px 18px; margin-bottom: 20px; }
.meta-item { display: flex; flex-direction: column; gap: 2px; }
.meta-label { font-size: 0.70rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text3); }
.meta-wert { font-weight: 600; color: var(--text); font-size: 0.9rem; }
.detail-aufgabe { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: 12px; overflow: hidden; }
.detail-aufgabe-header { display: flex; align-items: center; justify-content: space-between; padding: 4px 12px; background: var(--bg3); border-bottom: 1px solid var(--border); font-weight: 600; font-size: 0.82rem; color: var(--text); }
.detail-aufgabe-punkte { font-size: 0.78rem; color: var(--text2); font-family: 'JetBrains Mono', monospace; }
.detail-aufgabe-inhalt { padding: 14px 18px; line-height: 1.7; }
.detail-aufgabe-inhalt img { max-width: 100%; border-radius: var(--radius); }
.detail-loesungen { border-top: 1px solid var(--border); }
.detail-loesungen-titel { padding: 8px 18px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--accent); background: rgba(79,142,247,0.05); }
.detail-loesungen table { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
/* Generische Tabellen INNERHALB von Aufgaben-Inhalten (Pool-Vorschau, KA-Detail-Text,
   Aufgabe-Formular-Vorschau) - noetig fuer Quill-generierte Tabellen ohne eigenes
   border-Attribut, die sonst unsichtbar (nur als lose Text-Anordnung) erscheinen. */
.vorschau-inhalt table, .detail-aufgabe-text table, .detail-teilaufgabe-vorschau table {
  border-collapse: collapse;
  margin: 8px 0;
}
.vorschau-inhalt table td, .vorschau-inhalt table th,
.detail-aufgabe-text table td, .detail-aufgabe-text table th,
.detail-teilaufgabe-vorschau table td, .detail-teilaufgabe-vorschau table th {
  border: 1px solid var(--border2);
  padding: 4px 8px;
  vertical-align: middle;
}
.vorschau-inhalt table th, .detail-aufgabe-text table th, .detail-teilaufgabe-vorschau table th {
  background: var(--bg3);
  font-weight: 600;
}
/* Ergaenzung 14.07.2026 (spaeter am Tag): .vorschau-aufgabe wird in der KA-Detail-
   Word-Vorschau (zeigeKlassenarbeitDetail) verwendet - war im ersten Tabellen-CSS-Fix
   noch nicht abgedeckt. */
.vorschau-aufgabe table {
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 0.84rem;
}
.vorschau-aufgabe table td, .vorschau-aufgabe table th {
  border: 1px solid #999;
  padding: 3px 8px;
  vertical-align: middle;
}
.vorschau-aufgabe table th {
  font-weight: 600;
}
.detail-loesungen th { text-align: left; padding: 7px 18px; background: var(--bg3); color: var(--text2); font-weight: 600; font-size: 0.76rem; border-bottom: 1px solid var(--border); }
.detail-loesungen th:last-child { text-align: center; }
.detail-loesungen td { padding: 7px 18px; border-bottom: 1px solid var(--border); vertical-align: top; line-height: 1.5; }
.detail-loesungen td:last-child { text-align: center; font-family: 'JetBrains Mono', monospace; font-weight: 600; color: var(--green); width: 80px; }
.detail-loesungen tr:last-child td { border-bottom: none; background: rgba(34,197,94,0.05); }
.detail-beschreibung { background: var(--bg2); border: 1px solid var(--border); border-left: 3px solid var(--amber); border-radius: var(--radius); padding: 12px 16px; color: var(--text2); font-size: 0.88rem; line-height: 1.6; margin-bottom: 18px; }

/* ── Toast ── */
.toast-container { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 8px; z-index: 9999; }
.toast { display: flex; align-items: center; gap: 10px; background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius); padding: 11px 16px; font-size: 0.86rem; box-shadow: var(--shadow); animation: slideIn 0.2s ease; min-width: 230px; }
.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }
.toast.info { border-left: 3px solid var(--accent); }
@keyframes slideIn { from { opacity:0; transform:translateX(20px); } to { opacity:1; transform:none; } }

/* ── Modal ── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.65); backdrop-filter: blur(4px); z-index: 999999; display: flex; align-items: center; justify-content: center; }
.modal-overlay.hidden { display: none; }
.modal { background: var(--bg2); border: 1px solid var(--border2); border-radius: var(--radius-lg); min-width: 340px; max-width: 480px; box-shadow: var(--shadow); }
.modal-header { padding: 16px 20px 12px; font-weight: 700; font-size: 1rem; border-bottom: 1px solid var(--border); }
.modal-body { padding: 16px 20px; color: var(--text2); line-height: 1.6; font-size: 0.9rem; }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; padding: 12px 20px; border-top: 1px solid var(--border); }

/* ── Export Overlay ── */
.export-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.72); backdrop-filter: blur(6px); z-index: 2000; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; color: var(--text); }
.spinner { width: 38px; height: 38px; border: 3px solid var(--border2); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Misc ── */
.loading { text-align: center; color: var(--text3); padding: 50px 20px; font-size: 0.88rem; grid-column: 1/-1; }
.empty-state { text-align: center; color: var(--text3); padding: 50px 20px; grid-column: 1/-1; line-height: 1.8; }
.empty-state h3 { font-size: 1.05rem; color: var(--text2); margin-bottom: 6px; }

.dnd-teil {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 4px;
  color: var(--text2);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 6px;
  cursor: pointer;
  font-family: inherit;
  min-width: 28px;
}
.dnd-teil.teil2 {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Teilaufgaben */
.teilaufgabe-block {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 6px 8px;
  margin-bottom: 6px;
}
.teilaufgabe-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  padding: 2px 0;
}
.teilaufgabe-buchstabe {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
}

/* Bildgröße Auswahl */
.bild-groesse-auswahl {
  display: flex;
  gap: 8px;
}
.bild-groesse-btn {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 6px;
  color: var(--text2);
  padding: 4px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}
.bild-groesse-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Symbolleiste rechts */
#symbolleiste {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 200px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 10px 0 0 10px;
  box-shadow: -4px 0 20px rgba(0,0,0,0.3);
  z-index: 10001;
  display: flex;
  flex-direction: column;
  transition: right 0.3s ease;
}
#symbolleiste.versteckt { right: -172px; }
#symbolleiste.versteckt #symbolleiste-inhalt { filter: opacity(0.45); }
#symbolleiste-toggle {
  display: block;
  background: var(--accent);
  color: #fff;
  opacity: 1;
  position: absolute;
  left: -26px;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid var(--border2);
  border-right: none;
  border-radius: 6px 0 0 6px;
  padding: 8px 5px;
  cursor: pointer;
  font-size: 0.75rem;
  writing-mode: vertical-rl;
  white-space: nowrap;
}
#symbolleiste-inhalt {
  padding: 10px 8px;
  overflow-y: auto;
  max-height: 70vh;
}
.sym-gruppe { margin-bottom: 10px; }
.sym-gruppe-titel {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 5px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--border);
}
.sym-grid { display: flex; flex-wrap: wrap; gap: 3px; }
.sym-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 0.9rem;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: 'Times New Roman', serif;
}
.sym-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Pool Layout mit Vorschau */
.pool-layout {
  display: flex;
  gap: 0;
  height: calc(100vh - 200px);
  overflow: hidden;
}

.pool-liste {
  flex: 0 0 160px;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px;
}

.pool-vorschau {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  background: var(--bg3);
  min-width: 0;
}

.pool-vorschau-leer {
  color: var(--text3);
  font-size: 0.82rem;
  text-align: center;
  margin-top: 40px;
  font-style: italic;
}

.vorschau-varianten-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.vorschau-varianten-tab {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 14px;
  border: 1px solid var(--border2);
  background: var(--bg);
  color: var(--text3);
  cursor: pointer;
}
.vorschau-varianten-tab.aktiv {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.vorschau-titel {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.vorschau-meta {
  font-size: 0.75rem;
  color: var(--text3);
  margin-bottom: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.vorschau-inhalt {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 10px;
}

.vorschau-inhalt img {
  max-width: 100%;
  max-height: 200px;
  display: block;
  margin: 6px 0;
  border-radius: 4px;
}

.vorschau-punkte {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
}

/* Bilder neben Text */
.ql-editor img {
  display: block;
  margin-left: auto;
  border-radius: 4px;
}

/* Kollaps für Teilaufgaben und Lösungsschritte */
.teilaufgabe-body { transition: max-height 0.2s ease, opacity 0.2s ease; overflow: hidden; }
.teilaufgabe-body.kollabiert { max-height: 0; opacity: 0; pointer-events: none; }
.teilaufgabe-body.offen { max-height: 2000px; opacity: 1; }

.loesungsschritte-wrapper { transition: max-height 0.2s ease, opacity 0.2s ease; overflow: hidden; }
.loesungsschritte-wrapper.kollabiert { max-height: 0; opacity: 0; pointer-events: none; }
.loesungsschritte-wrapper.offen { max-height: 2000px; opacity: 1; }

.kollaps-toggle {
  background: transparent;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 2px 6px;
  border-radius: 4px;
}
.kollaps-toggle:hover { background: var(--bg2); color: var(--text); }

/* Floating Toolbar */
#floating-toolbar {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 4px 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  z-index: 1000;
  display: none;
  gap: 4px;
  align-items: center;
}
#floating-toolbar.sichtbar { display: flex; }

.ft-btn {
  background: transparent;
  border: none;
  color: var(--text2);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: inherit;
}
.ft-btn:hover { background: var(--bg3); color: var(--text); }
.ft-btn.aktiv { background: var(--accent); color: #fff; }

/* Kollaps-Blöcke */
.kollaps-block {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}
.kollaps-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
}
.kollaps-header:hover { background: var(--bg3); }
.kollaps-titel {
  font-weight: 600;
  font-size: 0.9rem;
  flex: 1;
}
.kollaps-inhalt {
  padding: 12px 14px;
  border-top: 1px solid var(--border);
}
.kollaps-inhalt.kollabiert { display: none; }
.kollaps-vorschau.sichtbar { display: block !important; }

/* Bild-Panel neben Editor */
.editor-mit-bild {
  display: flex;
  flex-direction: row;
  gap: 12px;
  align-items: flex-start;
}
#editor-wrapper #aufgabe-editor {
  flex: 1;
  min-width: 0;
}
.editor-bild-panel img {
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border2);
  display: block;
}
.editor-bild-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 160px;
  max-width: 600px;
}
.editor-bild-panel img {
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border2);
  cursor: pointer;
}
.editor-bild-panel.leer { display: none; }

#editor-bild-panel {
  flex: 0 0 var(--panel-breite, 33%);
  max-width: var(--panel-breite, 33%);
}
#editor-bild-panel img {
  width: 100% !important;
  height: auto !important;
}
[Inhalt von style-additions.css]
.export-overlay.hidden { display: none !important; }
/* ══════════════════════════════════════════════════════════
   AUFGABE FORM – neues Layout
   Diese Regeln ans Ende der style.css anhängen
   ══════════════════════════════════════════════════════════ */

/* ── Sticky Top-Bar ── */
.aufgabe-topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0 14px;
  margin-bottom: 20px;
  gap: 12px;
}
.aufgabe-topbar-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ── Form Body ── */
.aufgabe-form-body {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

/* ── Kollaps-Blöcke (af = aufgabe-form) ── */
.af-block {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.af-block:focus-within {
  border-color: var(--border2);
}

.af-block-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px;
  cursor: pointer;
  user-select: none;
  background: var(--bg3);
  transition: background var(--transition);
}
.af-block-header:hover {
  background: var(--bg3);
}
.af-block-icon {
  font-size: 1rem;
  flex-shrink: 0;
}
.af-block-titel {
  flex: 1;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text);
}
.af-block-chevron {
  font-size: 0.7rem;
  color: var(--text3);
  transition: transform 0.2s ease;
}

/* Geschlossener Zustand */
.af-block .af-block-body {
  display: none !important;
  padding: 16px;
  border-top: 1px solid var(--border);
}

/* Offener Zustand */
.af-block.af-block-open .af-block-body {
  display: block !important;
}
.af-block.af-block-open .af-block-chevron {
  transform: rotate(180deg);
}
.af-block.af-block-open .af-block-header {
  background: var(--bg3);
}

/* ── Aufgabenstellung: Editor ── */
.aufg-editor-wrap {
  margin-bottom: 12px;
}
.aufg-editor-wrap .quill-editor {
  border-radius: var(--radius);
}
.aufg-editor-wrap .ql-editor {
  min-height: 180px;
  font-size: 0.95rem !important;
  line-height: 1.75 !important;
}

/* ── Bild-Zeile unterhalb Editor ── */
.aufg-bild-zeile {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.aufg-bild-aktionen {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.bild-groesse-gruppe {
  display: flex;
  align-items: center;
  gap: 6px;
}
.bild-groesse-label {
  font-size: 0.78rem;
  color: var(--text2);
  white-space: nowrap;
}
.bild-groesse-btn {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 6px;
  color: var(--text2);
  padding: 4px 14px;
  font-size: 0.80rem;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}
.bild-groesse-btn:hover {
  background: var(--bg);
  color: var(--text);
}
.bild-groesse-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Bild-Vorschau-Panel */
.aufg-bild-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.aufg-bild-panel:empty {
  display: none;
}
.aufg-bild-panel .bild-wrapper {
  position: relative;
  display: inline-block;
}
.aufg-bild-panel img {
  max-height: 140px;
  max-width: 260px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  cursor: pointer;
  display: block;
  object-fit: contain;
}
.aufg-bild-panel .bild-loeschen {
  position: absolute;
  top: 3px;
  right: 3px;
  background: rgba(0,0,0,0.65);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  padding: 1px 5px;
  font-size: 0.75rem;
  line-height: 1.4;
}
.aufg-bild-panel .bild-unterschrift {
  width: 100%;
  margin-top: 3px;
  background: var(--bg);
  border: 1px solid var(--border2);
  color: var(--text);
  border-radius: 5px;
  padding: 3px 7px;
  font-size: 0.74rem;
  box-sizing: border-box;
}

/* ── Lösungsschritt im neuen Layout ── */
.loesungsschritt {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}
.loesungsschritt-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
}
.loesungsschritt-header:hover {
  background: var(--bg2);
}
.loesungsschritt-header .schritt-nr {
  font-size: 0.72rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text3);
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 1px 6px;
  min-width: 24px;
  text-align: center;
}
.loesungsschritt-header .schritt-label {
  flex: 1;
  font-size: 0.84rem;
  color: var(--text2);
}
.loesungsschritt-body {
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.loesungsschritt-body.kollabiert {
  display: none;
}

/* Punkte-Zeile im Schritt */
.schritt-punkte-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.schritt-punkte-row label {
  font-size: 0.78rem;
  color: var(--text2);
}
.schritt-punkte-input {
  width: 80px !important;
  padding: 4px 8px !important;
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 0.86rem !important;
}

/* af-block Vorschau unter Header */
.af-block-vorschau {
  padding: 4px 16px 6px;
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.4;
  border-bottom: 1px solid var(--border);
}
.af-block.af-block-open > .af-block-vorschau {
  display: none;
}
.af-block-titel {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text2);
}

/* Lösungsschritt Editor kompakter */
.loesungsschritt .ql-editor {
  min-height: 80px !important;
}
.loesungsschritt .schritt-punkte-row {
  margin-top: 6px;
}

/* Lösungsschritt Body mehr Luft */
.loesungsschritt .kollaps-inhalt,
.loesungsschritt-body {
  padding: 12px 12px 10px 12px !important;
}
.loesungsschritt > div[style*="grid"] {
  margin-top: 8px;
}

/* Lösungsschritt Vorschau */
#loesungsschritte-container .af-block-vorschau {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#loesungsschritte-container .af-block.af-block-open > .af-block-vorschau {
  display: none;
}

/* Lösungsschritt Kollaps – höchste Spezifität */
#loesungsschritte-container .af-block > .af-block-body {
  display: none !important;
}
#loesungsschritte-container .af-block.af-block-open > .af-block-body {
  display: block !important;
}

/* Aufgabe + Lösungsschritte Gruppe */
.af-gruppe {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 12px;
  background: var(--bg2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.af-gruppe .af-block {
  border: none;
  border-radius: 0;
  margin-bottom: 0;
  border-top: 1px solid var(--border);
}
.af-gruppe .af-block:first-child {
  border-top: none;
}

/* Punkte-Badge dezenter */
.punkte-gesamt {
  background: transparent !important;
  color: var(--text3) !important;
  font-size: 0.78rem !important;
  padding: 0 !important;
  border-radius: 0 !important;
}

/* Teilaufgaben Kollaps */
#teilaufgaben-container .af-block > .af-block-body {
  display: none !important;
}
#teilaufgaben-container .af-block.af-block-open > .af-block-body {
  display: block !important;
}
#teilaufgaben-container .af-block.af-block-open > .af-block-vorschau {
  display: none !important;
}


/* Teilaufgaben Vorschau kompakter */
#block-teilaufgaben .af-block-vorschau,
#block-teilaufgaben > .af-block-body {
  padding: 4px 14px;
}
.af-block-vorschau img {
  height: auto !important;
  width: 400px !important;
  vertical-align: middle !important;
  display: inline !important;
  margin: 0 4px !important;
}

/* Teilaufgaben Body-Höhe begrenzen wenn zugeklappt */
#teilaufgaben-container .af-block > .af-block-body {
  overflow: hidden;
}

/* Teilaufgaben Block Höhe begrenzen */
#block-teilaufgaben .af-block-body {
  max-height: none;
}
#teilaufgaben-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── Klassenarbeit Detail: Vorschau-Layout (Text links, Bilder rechts) ── */
.detail-aufgabe-vorschau {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 4px 12px 6px;
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.5;
}
.detail-aufgabe-text {
  flex: 1;
  min-width: 0;
}
.detail-aufgabe-text p { margin: 0 0 4px; }
.detail-aufgabe-text img { max-width: 100%; border-radius: var(--radius); }
.detail-aufgabe-bilder {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
}
.detail-aufgabe-bilder img {
  width: 220px;
  height: auto;
  border-radius: 4px;
  display: block;
  object-fit: contain;
}

/* ── Teilaufgaben in Detailansicht ── */
.detail-teilaufgabe {
  border-top: 1px solid var(--border);
}
.detail-teilaufgabe-vorschau {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 6px 16px 8px;
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.5;
}
.detail-ta-buchstabe {
  font-weight: 700;
  color: var(--text2);
  flex-shrink: 0;
  min-width: 18px;
  font-size: 0.85rem;
}

/* ── Teile-Verwaltung im Klassenarbeitseditor ── */
.teile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.teile-verwaltung {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.teil-zeile {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
}
.teil-nr {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 24px;
}
.teil-name-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 6px;
  color: var(--text);
  padding: 5px 10px;
  font-size: 0.88rem;
}
.teil-umbruch-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text2);
  white-space: nowrap;
  cursor: pointer;
}

/* Hintergrundbild fuer die gesamte App */
body {
  background-image: url('../img/login-bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: var(--bg);
  opacity: 0.93;
  z-index: 0;
  pointer-events: none;
}
.sidebar, .main {
  position: relative;
  z-index: 1;
}

/* Collapsable Blocks */
.collapsable-header {
  cursor: pointer;
  padding: 8px 0;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text2);
  user-select: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.collapsable-header:hover {
  color: var(--accent);
}
.collapsable-body {
  padding-top: 8px;
}

/* Home-View randlos */
#view-home {
  margin: -32px -40px;
}

/* ── Tablet / Mobile Anpassungen ─────────────────────────────── */
@media (max-width: 768px) {
  /* Pool-Header: alles untereinander */
  .pool-header {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .pool-header > div {
    flex-wrap: wrap;
  }
  .pool-header input,
  .pool-header select {
    width: 100%;
    box-sizing: border-box;
  }

  /* KA-Form: Klasse/Jahrgang/Datum/Dauer umbrechen */
  .form-row .form-group {
    min-width: calc(50% - 7px);
  }

  /* Sidebar als Overlay, standardmäßig versteckt */
  :root { --sidebar-w: 0px; }
  .sidebar {
    width: 240px;
    transform: translateX(-100%);
    transition: transform 0.2s;
    z-index: 200;
  }
  .sidebar.open {
    transform: translateX(0);
  }

  /* Main volle Breite */
  .main {
    padding: 12px;
    margin-left: 0 !important;
  }

  /* Views volle Breite */
  .view {
    left: 0 !important;
  }

  /* Welcomescreen scrollbar */
  #view-home {
    overflow-y: auto !important;
    position: absolute !important;
  }

  /* Overscroll bounce verhindern */
  body {
    overscroll-behavior: none;
    overflow: hidden;
  }
  .main {
    overscroll-behavior: contain;
  }
}

@media (max-width: 768px) {
  #view-home {
    position: absolute !important;
    overflow-y: auto !important;
    display: flex !important;
    
    padding-bottom: 40px;
  }
  #view-home > div:first-child {
    /* Overlay bleibt */
    position: fixed !important;
  }
  #home-video-box {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    transform: none !important;
    margin: 80px auto 20px auto !important;
    width: 90% !important;
    max-width: 100% !important;
  }
  #view-home > div:nth-child(3) {
    /* Titel oben rechts → oben zentriert */
    position: relative !important;
    top: auto !important;
    right: auto !important;
    text-align: center !important;
    padding: 16px;
    order: -1;
  }
  #view-home > div:last-child {
    /* Feedback-Box → normal im Flow */
    position: relative !important;
    bottom: auto !important;
    right: auto !important;
    width: 90% !important;
    margin: 20px auto !important;
  }
}

#view-aufgabe-form { transition: opacity 0.25s ease; }

/* ── Zweispalten-Layout Aufgabenform ── */
.aufgabe-form-body {
  display: flex !important;
  flex-direction: column;
}
.af-spalten-layout {
  display: flex;
  flex-direction: row;
  gap: 0;
  flex: 1;
  min-height: 0;
  align-items: flex-start;
}
.af-spalte {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 200px;
  padding: 4px;
}
#af-spalte-links { flex: 0 0 60%; }
#af-spalte-rechts { flex: 1; min-height: 100px; }

.af-spalten-resizer {
  width: 6px;
  cursor: col-resize;
  background: var(--border2);
  border-radius: 3px;
  margin: 0 4px;
  flex-shrink: 0;
  transition: background 0.2s;
}
.af-spalten-resizer:hover, .af-spalten-resizer.dragging {
  background: var(--accent);
}

/* Drag-Handle für Blöcke */
.af-draggable { position: relative; }
.af-drag-handle {
  position: absolute;
  top: 10px;
  right: 8px;
  cursor: grab;
  color: var(--text3);
  font-size: 1.1rem;
  z-index: 10;
  padding: 2px 4px;
  border-radius: 4px;
  line-height: 1;
}
.af-drag-handle:hover { color: var(--accent); background: var(--bg2); }
.af-draggable.drag-over { outline: 2px dashed var(--accent); border-radius: 8px; }
.af-draggable.dragging { opacity: 0.5; }

/* ── Aufgaben-Container (Varianten-System) ── */
.af-spalten-layout {
  display: flex;
  flex-direction: row;
  gap: 0;
  align-items: flex-start;
  margin-top: 12px;
}
.af-spalte {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 200px;
  flex: 0 0 50%;
  padding: 4px;
}
#af-spalte-rechts { flex: 1; }
.af-spalten-resizer {
  width: 6px;
  cursor: col-resize;
  background: var(--border2);
  border-radius: 3px;
  margin: 0 4px;
  flex-shrink: 0;
  align-self: stretch;
  min-height: 100px;
}
.af-spalten-resizer:hover { background: var(--accent); }

.av-container {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  cursor: default;
}
.av-container.dragging { opacity: 0.5; }
.av-container.drag-over { outline: 2px dashed var(--accent); }

.av-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border2);
  position: sticky;
  top: 0;
  z-index: 2;
}
.av-drag-handle {
  cursor: grab;
  color: var(--text3);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.av-label {
  font-weight: 700;
  font-size: 0.95rem;
  flex: 1;
}
.av-punkte {
  font-size: 0.78rem;
  color: var(--green);
}
.av-body {
  padding: 14px;
}

/* ── Mutter-Container ── */
.af-mutter-container {
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg2);
}
.af-mutter-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border2);
  font-weight: 700;
  min-height: 44px;
  box-sizing: border-box;
}
.af-mutter-drag-handle {
  cursor: grab;
  color: var(--text3);
  font-size: 1.1rem;
}
.af-mutter-titel { flex: 1; }
.af-mutter-body { padding: 8px; display: flex; flex-direction: column; gap: 8px; width: 100%; }

.af-mutter-container .af-block,
.af-mutter-container .af-gruppe,
.af-mutter-container .form-container {
  width: 100%;
}

#af-container-bereich {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Container nebeneinander wenn Varianten vorhanden */
#af-container-bereich {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
#af-container-bereich.hat-varianten {
  flex-direction: row;
  align-items: flex-start;
  gap: 12px;
}
#af-container-bereich.hat-varianten .af-mutter-container {
  flex: 1;
  min-width: 0;
}
#af-container-bereich.hat-varianten #block-varianten {
  display: none;
}

/* Original-Container ohne Varianten nicht zu breit */
#mutter-original {
  max-width: 930px;
  width: 100%;
}
#af-container-bereich.hat-varianten #mutter-original {
  max-width: none;
}

/* Metadaten-Container: nur so breit wie Original, volle Breite wenn Variante */
#mutter-meta {
  max-width: 930px;
  width: 100%;
}
.hat-varianten-wrapper #mutter-meta,
body:has(#af-container-bereich.hat-varianten) #mutter-meta {
  max-width: none;
}

/* Varianten-Container: max 2 nebeneinander */
#af-container-bereich.hat-varianten {
  flex-wrap: wrap;
}
#af-container-bereich.hat-varianten .af-mutter-container {
  flex: 1 1 calc(50% - 6px);
  min-width: 300px;
}



/* Varianten-Header X-Button nicht höher machen */
.varianten-mutter-container .af-mutter-header {
  position: relative;
}
.varianten-mutter-container .af-mutter-header .btn {
  padding: 0 6px;
  line-height: 1;
  align-self: center;
}

/* Varianten Teilaufgaben Lösungsschritte ein/ausklappen */
[id^="var-ta-schritte-"] .af-block > .af-block-body {
  display: none !important;
}
[id^="var-ta-schritte-"] .af-block.af-block-open > .af-block-body {
  display: block !important;
}

/* Varianten Teilaufgaben LS */
#af-container-bereich {  display: grid;  grid-template-columns: repeat(auto-fit, minmax(560px, 1fr));  gap: 12px;}
#af-container-bereich.hat-varianten {  grid-template-columns: repeat(auto-fit, minmax(560px, 1fr));}
[id^="var-schritte-"] .af-block > .af-block-body {
  display: none !important;
}
[id^="var-schritte-"] .af-block.af-block-open > .af-block-body {
  display: block !important;
}

/* Varianten Teilaufgaben ein/ausklappen */
[id^="var-teilaufgaben-"] .af-block-ta > .af-block-body {
  display: none !important;
}
[id^="var-teilaufgaben-"] .af-block-ta.af-block-open > .af-block-body {
  display: block !important;
}

/* ═══ HeRaKla Neues Container-System ═══ */

/* Metadaten */
#mutter-meta {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 10px;
  overflow: hidden;
}
.hk-meta-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  cursor: pointer;
  user-select: none;
  background: var(--bg3);
  border-bottom: 1px solid var(--border2);
}
.hk-meta-header:hover { background: var(--bg2); }
.hk-meta-titel { font-size: 0.85rem; font-weight: 700; color: var(--text); flex-shrink: 0; }
.hk-meta-vorschau { font-size: 0.78rem; color: var(--text3); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin: 0 8px; }
.hk-meta-chevron { font-size: 0.7rem; color: var(--text3); transition: transform 0.15s; }
.hk-meta-chevron.closed { transform: rotate(-90deg); }
.hk-meta-body { padding: 10px 14px; display: flex; flex-direction: column; gap: 8px; }
.hk-meta-body.hidden { display: none; }

/* Aufgaben-Container (Original + Varianten) */
.hk-container {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 10px;
  overflow: hidden;
  min-width: 500px;
  max-width: 1000px;
  width: 100%;
}
.hk-container-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border2);
  cursor: grab;
}
.hk-drag-handle { font-size: 1rem; color: var(--text3); cursor: grab; }
.hk-container-titel { font-size: 0.88rem; font-weight: 700; color: var(--text); flex: 1; }
.hk-container-body { padding: 8px; display: flex; flex-direction: column; gap: 6px; }

/* Aufgabenblock (Aufgabenstellung + Teilaufgabe — gleiche Vorlage) */
.hk-block {
  border: 1px solid var(--border2);
  border-radius: 8px;
  overflow: hidden;
}
.hk-block-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--bg3);
  cursor: pointer;
  user-select: none;
  min-height: 36px;
}
.hk-block-header:hover { background: var(--bg2); }
.hk-block-titel { font-size: 0.82rem; font-weight: 700; color: var(--text); flex-shrink: 0; }
.hk-block-vorschau-text { font-size: 0.78rem; color: var(--text3); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin: 0 6px; }
.hk-block-thumb { width: 28px; height: 28px; border-radius: 4px; background: var(--bg); border: 1px solid var(--border2); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 0.7rem; color: var(--text3); overflow: hidden; }
.hk-block-thumb img { width: 100%; height: 100%; object-fit: cover; }
.hk-block-chevron { font-size: 0.7rem; color: var(--text3); transition: transform 0.15s; flex-shrink: 0; }
.hk-block-chevron.closed { transform: rotate(-90deg); }
.hk-block-body { padding: 8px; display: flex; flex-direction: column; gap: 8px; border-top: 1px solid var(--border2); }
.hk-block-body.hidden { display: none; }

/* Vorschau+Bild Grid */
.hk-aufg-grid { display: grid; grid-template-columns: 1fr 200px; gap: 8px; }
.hk-vorschau-box {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 8px;
  font-size: 0.8rem;
  color: var(--text2);
  cursor: pointer;
  min-height: 56px;
  transition: border-color 0.1s;
}
.hk-vorschau-box:hover { border-color: var(--accent); }
.hk-vorschau-hint { font-size: 0.72rem; color: var(--text3); margin-top: 4px; }
.hk-bild-box {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  min-height: 56px;
  font-size: 0.78rem;
  color: var(--text3);
  transition: border-color 0.1s;
}
.hk-bild-box:hover { border-color: var(--accent); }

/* Lösungsschritte */
.hk-ls-section { border-top: 1px solid var(--border2); padding-top: 8px; margin-top: 4px; }
.hk-ls-label { font-size: 0.78rem; font-weight: 600; color: var(--text2); margin-bottom: 6px; display: flex; align-items: center; justify-content: space-between; }
.hk-ls-item {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 8px;
  background: var(--bg);
  border: none;
  border-bottom: 1px solid var(--border2);
  border-radius: 0;
  margin-bottom: 0;
  cursor: pointer;
}
.hk-ls-item:hover { background: var(--bg2); }
.hk-ls-drag { font-size: 0.85rem; color: var(--text3); cursor: grab; }
.hk-ls-name { font-size: 0.8rem; color: var(--text); flex: 1; }
.hk-ls-pts { font-size: 0.75rem; color: var(--text3); font-family: monospace; }
.hk-ls-del { font-size: 0.8rem; color: var(--text3); cursor: pointer; padding: 0 2px; background: none; border: none; }
.hk-ls-del:hover { color: var(--red, #ef4444); }

/* Teilaufgaben */
.hk-ta-item { border: 1px solid var(--border2); border-radius: 6px; overflow: hidden; }
.hk-ta-header {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 8px;
  background: var(--bg3);
  cursor: pointer;
  user-select: none;
  min-height: 32px;
}
.hk-ta-header:hover { background: var(--bg2); }
.hk-ta-drag { font-size: 0.82rem; color: var(--text3); cursor: grab; flex-shrink: 0; }
.hk-ta-buchstabe { font-size: 0.85rem; font-weight: 700; color: var(--text); flex-shrink: 0; }
.hk-ta-vorschau { font-size: 0.78rem; color: var(--text3); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin: 0 4px; }
.hk-ta-thumb { width: 24px; height: 24px; border-radius: 3px; background: var(--bg); border: 1px solid var(--border2); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 0.65rem; color: var(--text3); overflow: hidden; }
.hk-ta-thumb img { width: 100%; height: 100%; object-fit: cover; }
.hk-ta-chevron { font-size: 0.7rem; color: var(--text3); transition: transform 0.15s; flex-shrink: 0; }
.hk-ta-chevron.closed { transform: rotate(-90deg); }
.hk-ta-del { font-size: 0.8rem; color: var(--text3); cursor: pointer; padding: 0 2px; background: none; border: none; margin-left: 2px; flex-shrink: 0; }
.hk-ta-del:hover { color: var(--red, #ef4444); }
.hk-ta-body { display: flex; flex-direction: column; gap: 8px; padding: 8px; border-top: 1px solid var(--border2); }
.hk-ta-body.hidden { display: none; }

/* Datei-Bereich */
.hk-datei-bereich { display: flex; align-items: center; gap: 8px; padding: 6px 4px; border-top: 1px solid var(--border2); margin-top: 2px; }

/* Buttons-Reihe unten im Container */
.hk-aktionen { display: flex; gap: 8px; padding: 6px 4px; }

/* HK Block-Header dezenter, Inhalt deutlicher */
.hk-block-header {
  background: var(--bg2) !important;
  border-bottom: none;
}
.hk-block-titel {
  font-size: 0.75rem !important;
  font-weight: 500 !important;
  color: var(--text3) !important;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.hk-vorschau-box {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  font-size: 0.88rem !important;
  color: var(--text) !important;
  font-weight: 400;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.hk-container-header {
  background: var(--bg3) !important;
}
.hk-container-titel {
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  color: var(--text2) !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* HK vereinfacht - weniger outlines */
.hk-block { border: none; background: transparent; }
.hk-block-header { background: transparent; padding: 4px 0; border-bottom: none; }
.hk-block-titel { font-size: 0.72rem !important; font-weight: 400 !important; color: var(--text3) !important; text-transform: uppercase; letter-spacing: 0.05em; }
.hk-block-body { border-top: none; padding: 0 0 12px 0; }
.hk-vorschau-box { background: var(--bg) !important; border: none !important; border-radius: 8px !important; font-size: 0.88rem !important; color: var(--text) !important; box-shadow: inset 0 0 0 1px var(--border2); }
.hk-bild-box { border: none !important; box-shadow: inset 0 0 0 1px var(--border2); border-radius: 8px !important; }
.hk-ls-item { border: none !important; }
.hk-ta-item { border: none !important; box-shadow: none !important; border-radius: 6px !important; overflow: hidden; }
.hk-ta-header { background: var(--bg2) !important; }
.hk-container { box-shadow: 0 1px 6px rgba(0,0,0,0.08); border: none !important; }
.hk-container-header { border-bottom: 1px solid var(--border2) !important; }

/* HK Flat - Card außen, innen minimal */
.hk-container { border: 1px solid var(--border2) !important; box-shadow: 0 1px 4px rgba(0,0,0,0.06) !important; border-radius: 10px !important; background: var(--bg) !important; }
.hk-container-header { background: var(--bg) !important; border-bottom: 1px solid var(--border2) !important; }
.hk-container-titel { font-size: 0.78rem !important; font-weight: 600 !important; color: var(--text2) !important; text-transform: uppercase; letter-spacing: 0.05em; }
.hk-block { border: none !important; background: transparent !important; }
.hk-block-header { background: transparent !important; padding: 6px 0 2px 0 !important; border: none !important; }
.hk-block-titel { font-size: 0.7rem !important; font-weight: 400 !important; color: var(--text3) !important; text-transform: uppercase; letter-spacing: 0.06em; }
.hk-block-body { border: none !important; background: transparent !important; padding: 4px 0 12px 0 !important; }
.hk-vorschau-box { background: var(--bg) !important; border: 1px solid var(--border2) !important; color: var(--text) !important; font-size: 0.88rem !important; }
.hk-bild-box { border: 1px solid var(--border2) !important; background: var(--bg) !important; }
.hk-ls-section { border-top: none !important; }
.hk-ls-item { background: transparent !important; border: none !important; border-radius: 0 !important; padding: 5px 2px 5px 22px !important; }
.hk-ta-item { border: none !important; background: transparent !important; border-radius: 0 !important; }
.hk-ta-header { background: transparent !important; }
.hk-datei-bereich { border-top: 1px solid var(--border2) !important; background: transparent !important; }

/* HK Mutter-Container weisser Hintergrund */
.hk-container { background: var(--bg2) !important; }
.hk-container-header { background: var(--bg2) !important; }
#mutter-meta { background: var(--bg2) !important; }
.hk-meta-body { background: var(--bg2) !important; }

/* HK Vorschau-Box größere Schrift, weißer Hintergrund */
.hk-vorschau-box { font-size: 0.95rem !important; background: #fff !important; }

/* HK Vorschau-Box Schrift 3.3rem Test */
.hk-vorschau-box { font-size: 3.3rem !important; }

.hk-vorschau-box { font-size: 1.6rem !important; }

.hk-vorschau-box { font-size: 1.1rem !important; }

.hk-container-header { background: var(--accent) !important; }
.hk-container-titel { color: #fff !important; }
.hk-drag-handle { color: rgba(255,255,255,0.6) !important; }

.hk-container-header { background: var(--bg3) !important; }
.hk-container-titel { color: var(--text2) !important; }
.hk-drag-handle { color: var(--text3) !important; }

/* Metadaten-Header wie hk-container-header */
.hk-meta-header {
  background: var(--bg3) !important;
  border-bottom: 1px solid var(--border2) !important;
  padding: 8px 12px !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
}
.hk-meta-titel {
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  color: var(--text2) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
}

/* Speichern-Button flacher */
.hk-container-header .btn-primary {
  padding: 2px 10px !important;
  font-size: 0.78rem !important;
  line-height: 1.4 !important;
}


/* Vorschau und Bild ohne Rand */
.hk-vorschau-box { border: none !important; box-shadow: none !important; background: transparent !important; padding: 6px 0 6px 40px !important; }
.hk-bild-box { border: none !important; box-shadow: none !important; background: transparent !important; }
.hk-hidden { display: none !important; }

/* Bildbox kein sichtbarer Scrollbar */
.hk-bild-box::-webkit-scrollbar { display: none; }
.hk-bild-box { scrollbar-width: none; }

/* Bildbox dünner Scrollbar */
.hk-bild-box::-webkit-scrollbar { height: 3px; }
.hk-bild-box::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }
.hk-bild-box::-webkit-scrollbar-track { background: transparent; }

/* Popup Editor kein Scroll */
#hk-editor-popup .ql-editor { overflow: visible !important; }

.hk-ls-item:last-child { border-bottom: none !important; }

.hk-ls-name .katex-mathml { display: none !important; }

.hk-ls-name .katex-mathml { display: none !important; }

.hk-vorschau-box .katex-mathml { display: none !important; }

.hk-ta-vorschau { display: inline-block !important; font-size: 1.1rem; margin-left: 8px; color: var(--text); }
.hk-ta-vorschau .katex-mathml { display: none !important; }

.hk-ta-ctrlbar { position: absolute; top: 4px; right: 4px; display: flex; gap: 4px; align-items: center; z-index: 5; }
.hk-ta-buchstabe-inline { font-weight: 700; color: var(--text); font-size: 1.3rem; }

.hk-ls-section.hidden { display: none !important; }

.detail-aufgaben-liste {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  gap: 12px;
  padding: 12px;
}

/* Nav-Gruppen (aufklappbar) */
.nav-group { display: flex; flex-direction: column; gap: 0; }
.nav-group-header { display: flex; align-items: center; gap: 8px; }
.nav-group-header.offen .nav-group-chevron { transform: rotate(180deg); }
.nav-group-items { display: flex; flex-direction: column; gap: 2px; padding-left: 8px; margin-top: 2px; }
.nav-sub-btn { 
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; border-radius: 7px; border: none;
  background: transparent; color: var(--text2); font-size: 0.82rem;
  cursor: pointer; text-align: left; width: 100%; transition: background 0.15s;
}
.nav-sub-btn:hover { background: var(--bg3); color: var(--text); }
.nav-sub-btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* === Suchleiste & Filter, minimalistisch (01.07.2026) === */
.header-actions {
  flex-direction: row !important;
  align-items: center;
  flex-wrap: wrap;
}
.search-input {
  background-color: var(--bg2);
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="%23999" stroke-width="2"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>');
  background-repeat: no-repeat;
  background-position: 12px center;
  background-size: 14px 14px;
  padding-left: 34px;
  border-color: transparent;
  transition: border-color .15s ease, background-color .15s ease;
}
.search-input:hover { border-color: var(--border); }
.search-input:focus { border-color: var(--accent); background-color: var(--bg); }
.filter-select {
  border-color: transparent;
  background-color: var(--bg2);
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.filter-select:hover { border-color: var(--border); }
.filter-select:focus { border-color: var(--accent); }