*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  :root {
    color-scheme:dark;
    --bg:#10171e; --surface:#17212a; --surface2:#202c36; --surface3:#283641; --border:#34434e;
    --accent:#62aca2; --accent-hover:#7bc1b7; --accent-soft:#1d3938;
    --accent2:#aac8d5; --text:#e6eaed; --muted:#9aa7b1;
    --gold:#c5a45d; --gold-soft:#332d22;
    --success:#72be94; --success-bg:#19362b; --danger:#df858d; --danger-bg:#3a2229;
    --warning:#d3ad62; --warning-bg:#392f20;
    --accent-contrast:#10201f; --brand-ink:#1b252d; --code-bg:#0c1218; --code-text:#d8e4e9;
    --chat-bg:#111b23; --gold-border:#50452f; --warning-border:#5a492f; --warning-text:#e4c782;
    --radius:8px; --font:'DM Sans',sans-serif; --mono:'DM Mono',monospace;
    --focus:0 0 0 3px rgba(98,172,162,.24);
  }
  html[data-theme="light"] {
    color-scheme:light;
    --bg:#f3f1eb; --surface:#fffdfa; --surface2:#ebece7; --surface3:#e2e5e0; --border:#d5d8d2;
    --accent:#247468; --accent-hover:#1d5f56; --accent-soft:#e4f0ed;
    --accent2:#2c4052; --text:#202c38; --muted:#65717d;
    --gold:#c69b42; --gold-soft:#f4ecd9;
    --success:#267a55; --success-bg:#e8f3ec; --danger:#b44756; --danger-bg:#f8e9eb;
    --warning:#8a641f; --warning-bg:#fbf3df;
    --accent-contrast:#fff; --brand-ink:#26343e; --code-bg:#202932; --code-text:#edf2f4;
    --chat-bg:#f7f6f1; --gold-border:#dbc792; --warning-border:#dfc98e; --warning-text:#76551b;
    --focus:0 0 0 3px rgba(36,116,104,.2);
  }
  body {
    background:var(--bg);
    color:var(--text);
    font-family:var(--font);
    min-height:100vh;
    display:flex;
    align-items:flex-start;
    justify-content:center;
    padding:1.5rem 1.25rem 4rem;
  }
  ::selection { color:var(--text); background:rgba(98,172,162,.3); }
  :where(button,a,input,select,textarea,summary):focus-visible {
    outline:2px solid var(--accent);
    outline-offset:2px;
  }
  .quiz-shell { width:100%; max-width:920px; min-width:0; }
  #app { min-width:0; max-width:100%; }
  .quiz-header {
    position:relative;
    display:grid;
    grid-template-columns:auto minmax(0,1fr) auto;
    column-gap:1rem;
    align-items:center;
    margin-bottom:2rem;
    padding:.8rem 0 1.25rem;
    text-align:left;
    background:transparent;
    border:0;
    border-bottom:1px solid var(--border);
    border-radius:0;
    box-shadow:none;
  }
  .quiz-header::after { display:none; }
  .brand-mark {
    grid-row:1 / span 3;
    display:grid;
    place-items:center;
    width:48px;
    height:48px;
    margin:0;
    color:var(--brand-ink);
    background:var(--gold);
    border-radius:6px;
    font-family:var(--mono);
    font-size:12px;
    font-weight:600;
    box-shadow:none;
  }
  .quiz-header .tag {
    grid-column:2;
    display:block;
    width:auto;
    height:auto;
    padding:0;
    font-family:var(--mono);
    font-size:10px;
    font-weight:600;
    line-height:1.2;
    letter-spacing:.06em;
    text-transform:uppercase;
    color:var(--accent);
    background:transparent;
    border:0;
    border-radius:0;
    margin:0 0 2px;
    text-align:left;
  }
  .quiz-header h1 {
    grid-column:2;
    font-size:1.8rem;
    font-weight:600;
    line-height:1.2;
    color:var(--text);
    margin:0 0 .15rem;
  }
  .quiz-header p {
    grid-column:2;
    max-width:680px;
    margin:0;
    font-size:.92rem;
    line-height:1.55;
    color:var(--muted);
  }
  .theme-toggle {
    grid-column:3;
    grid-row:1 / span 3;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:7px;
    min-height:38px;
    padding:8px 11px;
    color:var(--muted);
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:6px;
    font:600 12px/1 var(--font);
    cursor:pointer;
    transition:color .15s,border-color .15s,background .15s;
  }
  .theme-toggle:hover { color:var(--text); border-color:var(--accent); background:var(--accent-soft); }
  .theme-toggle-icon { font-size:15px; line-height:1; }

  /* ── Semesterübersicht ── */

.semester-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.project-info-entry {
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:.85rem;
  width:100%;
  margin:1.1rem 0 0;
  padding:1rem 1.1rem;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface);
  color:var(--text);
  text-align:left;
  cursor:pointer;
  font:inherit;
}
.project-info-entry:hover { border-color:var(--accent); transform:translateY(-1px); }
.project-info-entry > span:nth-child(2) { display:flex; flex-direction:column; gap:.2rem; }
.project-info-entry small { color:var(--muted); font-size:12px; line-height:1.45; }
.project-info-icon { display:grid; place-items:center; width:2rem; height:2rem; border-radius:50%; background:var(--accent-soft); color:var(--accent); font-weight:800; }
.contributor-intro p { max-width:760px; margin:.55rem 0 0; color:var(--muted); line-height:1.6; }
.credit-screen { position:relative; margin-top:1rem; overflow:hidden; border:1px solid #25313c; border-radius:14px; background:radial-gradient(circle at 50% 20%,#18232d 0,#0a0f14 46%,#030609 100%); color:#eef5f4; box-shadow:0 24px 70px rgba(0,0,0,.3); }
.credit-viewport { position:relative; height:min(70vh,720px); min-height:520px; overflow:hidden; isolation:isolate; }
.credit-vignette { position:absolute; inset:0 0 3.8rem; z-index:3; pointer-events:none; background:linear-gradient(#030609 0,transparent 14%,transparent 82%,#030609 100%); }
.credit-roll { width:min(720px,calc(100% - 2rem)); margin:0 auto; text-align:center; animation:credit-roll 72s linear infinite; will-change:transform; }
.credit-roll.running { animation-name:credit-roll; }
.credit-roll.paused, .credit-viewport:hover .credit-roll, .credit-viewport:focus-within .credit-roll { animation-play-state:paused; }
@keyframes credit-roll { from { transform:translateY(18vh); } to { transform:translateY(calc(-100% - 8rem)); } }
.credit-title-card { padding:4rem 1rem 7rem; }
.credit-title-card > span, .credit-finale > span { color:#6ed9ca; font:600 11px var(--mono); letter-spacing:.28em; }
.credit-title-card h2 { margin:.8rem 0 .35rem; color:#fff; font-size:clamp(1.7rem,4vw,3rem); letter-spacing:.04em; text-transform:uppercase; }
.credit-title-card p { color:#9eacb6; }
.credit-numbers { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:1rem; padding:0 0 7rem; }
.credit-numbers div { display:flex; flex-direction:column; gap:.2rem; }
.credit-numbers strong { color:#fff; font:500 2rem var(--mono); }
.credit-numbers span { color:#7f909c; font-size:11px; text-transform:uppercase; }
.credit-person { padding:0 1rem 8rem; }
.credit-initials { display:grid; place-items:center; width:3.2rem; height:3.2rem; margin:0 auto 1rem; border:1px solid rgba(110,217,202,.5); border-radius:50%; color:#6ed9ca; font:600 13px var(--mono); }
.credit-role { margin:0; color:#6ed9ca; font:600 10px var(--mono); letter-spacing:.14em; text-transform:uppercase; }
.credit-person h3 { margin:.55rem 0 .25rem; color:#fff; font-size:clamp(1.5rem,3vw,2.25rem); letter-spacing:.03em; }
.credit-commits { margin:0 0 1.5rem; color:#7f909c; font-size:11px; }
.credit-person ul { display:grid; gap:.75rem; max-width:620px; margin:0 auto; padding:0; list-style:none; }
.credit-person li { color:#ccd5da; font-size:14px; line-height:1.55; }
.credit-finale { padding:2rem 1rem 8rem; }
.credit-finale h3 { margin:.8rem 0; color:#fff; font-size:2rem; }
.credit-finale p { color:#81929e; font-size:11px; }
.credit-controls { position:relative; z-index:4; display:flex; align-items:center; gap:.55rem; padding:.75rem; border-top:1px solid #25313c; background:rgba(3,6,9,.94); }
.credit-controls button { padding:.55rem .7rem; border:1px solid #344553; border-radius:7px; background:#111a22; color:#e9f1f0; cursor:pointer; font:600 11px var(--font); }
.credit-controls button:hover { border-color:#6ed9ca; color:#6ed9ca; }
.credit-controls span { margin-left:auto; color:#71818d; font-size:10px; }
.contributor-note { margin:1rem 0 0; padding:1rem 1.1rem; border-left:4px solid var(--accent); border-radius:8px; background:var(--accent-soft); }
.contributor-note p { margin:.35rem 0 0; color:var(--muted); font-size:12px; line-height:1.55; }
@media (prefers-reduced-motion:reduce) {
  .credit-viewport { height:auto; min-height:0; overflow:visible; }
  .credit-vignette { display:none; }
  .credit-roll { animation:none; transform:none; }
  .credit-controls { display:none; }
}

.semester-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 220px;
  padding: 1.4rem;
  text-align: left;

  font-family: var(--font);
  color: var(--text);

  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);

  cursor: pointer;

  transition:
    transform .18s,
    border-color .18s,
    background .18s;
}

.semester-card:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background:var(--accent-soft);
}

.semester-card.current {
  border-color:rgba(98,172,162,.55);
}

.semester-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.15rem;
}

.semester-number {
  display: grid;
  place-items: center;

  width: 48px;
  height: 48px;

  border-radius:6px;

  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;

  color: var(--accent2);

  background:var(--accent-soft);
  border:1px solid rgba(98,172,162,.28);
}

.semester-current {
  padding: 4px 9px;

  border-radius:4px;

  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;

  color: var(--success);
  background: var(--success-bg);
  border:1px solid rgba(114,190,148,.28);
}

.semester-title {
  margin-bottom: 5px;

  font-size: 1.1rem;
  font-weight: 600;
}

.semester-description {
  margin-bottom: 12px;

  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.semester-modules {
  color: var(--accent2);

  font-size: 11px;
  font-weight: 600;
  line-height: 1.5;
}

.semester-footer {
  display: flex;
  justify-content: space-between;
  gap: 8px;

  margin-top: auto;
  padding-top: 1.2rem;

  color: var(--muted);

  font-family: var(--mono);
  font-size: 10px;
}

  /* Module selection */
  .section-intro { margin-bottom:1rem; }
  .section-intro .eyebrow { display:block; margin-bottom:.35rem; color:var(--accent2); font-size:11px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; }
  .section-intro h2 { color:var(--text); font-size:1.15rem; font-weight:600; }
  .module-grid { display:grid; gap:12px; }
  .module-card { display:flex; align-items:center; gap:14px; width:100%; padding:1.2rem; color:var(--text); text-align:left; font-family:var(--font); background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); cursor:pointer; transition:transform .15s,border-color .15s,background .15s; }
  .module-card:hover { transform:translateY(-1px); border-color:var(--accent); background:var(--accent-soft); }
  .module-card:active { transform:translateY(0); }
  .module-icon { display:grid; place-items:center; flex:0 0 44px; height:44px; color:var(--gold); font-family:var(--mono); font-size:1rem; font-weight:600; background:var(--gold-soft); border:1px solid var(--gold-border); border-radius:6px; }
  .module-copy { display:flex; flex:1; min-width:0; flex-direction:column; }
  .module-title { margin-bottom:3px; font-size:1rem; font-weight:600; }
  .module-sub { color:var(--muted); font-size:12px; line-height:1.45; }
  .module-meta { margin-top:8px; color:var(--accent2); font-size:11px; font-weight:600; }
  .module-arrow { color:var(--muted); font-size:1.2rem; transition:transform .18s,color .18s; }
  .module-card:hover .module-arrow { color:var(--accent2); transform:translateX(3px); }

  /* Block selection cards */
  .block-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:1.5rem; }
  .block-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:1.2rem; cursor:pointer; transition:border-color .15s,background .15s,transform .15s; text-align:left; position:relative; }
  .block-card:hover:not(.disabled) { transform:translateY(-1px); border-color:var(--accent); background:var(--accent-soft); }
  .block-card.active { border-color:var(--accent); background:var(--accent-soft); }
  .block-card.disabled { opacity:.5; cursor:not-allowed; }
  .block-card .bc-title { font-size:1rem; font-weight:600; color:var(--text); margin-bottom:.25rem; }
  .block-card .bc-sub { font-size:12px; color:var(--muted); }
  .block-card .bc-count { display:inline-block; margin-top:.65rem; font-size:11px; font-weight:600; color:var(--accent); background:transparent; padding:0; border-radius:0; }
  .block-card .bc-badge { position:absolute; top:12px; right:12px; font-size:10px; font-weight:600; text-transform:uppercase; letter-spacing:.05em; color:var(--muted); background:var(--surface2); border:1px solid var(--border); padding:3px 7px; border-radius:4px; }
  .block-card.full-width { grid-column:1 / -1; }

  .cat-filter { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; margin-bottom:1.5rem; }
  .cat-btn { padding:7px 12px; border-radius:5px; border:1px solid var(--border); background:var(--surface); color:var(--muted); font-family:var(--font); font-size:13px; cursor:pointer; transition:border-color .15s,background .15s,color .15s; }
  .cat-btn:hover { border-color:var(--accent); color:var(--accent2); }
  .cat-btn.active { background:var(--accent-soft); border-color:var(--accent); color:var(--accent-hover); font-weight:600; }

  .start-count { font-size:13px; color:var(--muted); text-align:center; margin-bottom:1.5rem; }
  .start-btn { display:block; width:100%; padding:13px 16px; background:var(--accent); color:var(--accent-contrast); font-family:var(--font); font-size:.95rem; font-weight:700; border:1px solid var(--accent); border-radius:6px; cursor:pointer; transition:background .15s,border-color .15s,transform .1s; }
  .start-btn:hover { background:var(--accent-hover); border-color:var(--accent-hover); }
  .start-btn:active { transform:scale(.98); }
  .start-btn:disabled { opacity:.4; cursor:not-allowed; }
  .start-btn:focus-visible,
  .worksheet-start:focus-visible {
    outline:3px solid color-mix(in srgb, var(--accent) 34%, transparent);
    outline-offset:3px;
  }

  .back-link { display:inline-block; margin-bottom:1rem; padding:0; font-size:13px; font-weight:500; color:var(--muted); cursor:pointer; background:none; border:0; border-radius:3px; font-family:var(--font); transition:color .15s; }
  .back-link:hover { color:var(--accent); }
  .back-link:focus-visible { outline:2px solid var(--accent); outline-offset:4px; }

  .empty-note { background:var(--surface); border:1px dashed var(--border); border-radius:var(--radius); padding:2rem; text-align:center; color:var(--muted); font-size:14px; line-height:1.6; }

  .progress-wrap { margin-bottom:1.5rem; }
  .progress-row { display:flex; justify-content:space-between; font-size:13px; color:var(--muted); margin-bottom:8px; }
  .progress-row .q-cat { background:transparent; border:0; padding:0; border-radius:0; font-size:12px; color:var(--accent2); }
  .progress-track { height:4px; background:var(--surface2); border-radius:99px; overflow:hidden; }
  .progress-fill { height:4px; background:var(--accent); border-radius:99px; transition:width .5s cubic-bezier(.4,0,.2,1); }

  .q-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:1.6rem; margin-bottom:1rem; }
  .q-text { font-size:1.05rem; font-weight:500; line-height:1.6; color:var(--text); margin-bottom:1.25rem; }
  .code-block { background:var(--code-bg); border:1px solid var(--border); border-radius:6px; padding:13px 16px; font-family:var(--mono); font-size:13px; color:var(--code-text); margin-bottom:1.25rem; white-space:pre; overflow-x:auto; }

  .option-btn { display:flex; align-items:flex-start; gap:12px; width:100%; text-align:left; background:var(--surface); border:1px solid var(--border); border-radius:6px; padding:13px 14px; margin-bottom:8px; cursor:pointer; font-family:var(--font); font-size:14px; color:var(--text); transition:border-color .15s, background .15s; }
  .option-btn:hover:not(:disabled) { border-color:var(--accent); background:var(--accent-soft); }
  .option-btn.selected { border-color:var(--accent); background:var(--accent-soft); }
  .option-btn.correct { border-color:var(--success); background:var(--success-bg); color:var(--success); }
  .option-btn.wrong { border-color:var(--danger); background:var(--danger-bg); color:var(--danger); }
  .option-key { font-weight:600; font-size:12px; color:var(--muted); min-width:20px; margin-top:1px; }
  .option-btn.selected .option-key { color:var(--accent2); }
  .option-btn.correct .option-key { color:var(--success); }
  .option-btn.wrong .option-key { color:var(--danger); }

  .feedback { background:var(--surface2); border:1px solid var(--border); border-radius:6px; padding:14px 16px; font-size:13px; color:var(--muted); line-height:1.65; margin-bottom:1rem; }
  .feedback.ok { border-left:3px solid var(--success); }
  .feedback.bad { border-left:3px solid var(--danger); }
  .feedback.partial { border-left:3px solid var(--warning); }
  .source-note { margin-top:8px; padding-top:8px; color:var(--muted); font-size:11px; border-top:1px solid var(--border); }

  /* Shared answer feedback: one calm area with a short exam-first hierarchy. */
  .feedback-coach { display:grid; gap:12px; color:var(--text); }
  .feedback-coach .feedback-result { margin:0; color:var(--text); font-size:1.05rem; }
  .feedback-coach.ok .feedback-result { color:var(--success); }
  .feedback-coach.bad .feedback-result { color:var(--danger); }
  .feedback-coach.partial .feedback-result { color:var(--warning); }
  .feedback-block { color:var(--text); }
  .feedback-label { margin-bottom:3px; color:var(--accent2); font-size:.7rem; font-weight:800; letter-spacing:.08em; text-transform:uppercase; }
  .feedback-exam-answer > div:last-child { font-weight:600; }
  .feedback-correct-answer { padding-left:10px; border-left:2px solid var(--success); }
  .feedback-mistake { padding-left:10px; border-left:2px solid var(--danger); }
  .feedback-memory { padding-left:10px; border-left:2px solid var(--accent); }
  .feedback-more { margin-top:2px; padding-top:10px; border-top:1px solid var(--border); color:var(--text); }
  .feedback-more > summary { color:var(--accent2); cursor:pointer; font-weight:700; }
  .feedback-detail-copy { margin-top:10px; color:var(--muted); }
  .feedback-detail-copy p:first-child { margin-top:0; }
  .feedback-mistake-list { display:grid; gap:6px; margin:4px 0 0; padding:0; list-style:none; }
  .feedback-mistake-list li { display:grid; gap:2px; }
  .feedback-mistake-list li strong { font-size:.9rem; }
  .feedback-mistake-list li span { color:var(--muted); }
  .feedback-source { margin-top:0; padding-top:10px; border-top:1px solid var(--border); color:var(--muted); font-size:11px; }

  .action-row { display:flex; gap:10px; }
  .btn { flex:1; padding:11px 14px; border-radius:6px; font-family:var(--font); font-size:.92rem; font-weight:600; cursor:pointer; transition:background .15s,border-color .15s,transform .1s; border:1px solid var(--border); background:var(--surface); color:var(--text); }
  .btn:hover { border-color:var(--accent); background:var(--accent-soft); }
  .btn:active { transform:scale(.98); }
  .btn-accent { background:var(--accent); border-color:var(--accent); color:var(--accent-contrast); font-weight:700; }
  .btn-accent:hover { background:var(--accent-hover); border-color:var(--accent-hover); }

  .score-wrap { text-align:center; padding:1rem 0 2rem; }
  .score-ring { width:130px; height:130px; border-radius:50%; border:4px solid var(--accent); display:flex; align-items:center; justify-content:center; margin:0 auto 1.5rem; flex-direction:column; }
  .score-pct { font-size:2.2rem; font-weight:600; color:var(--text); line-height:1; }
  .score-pct-label { font-size:12px; color:var(--muted); }
  .score-title { font-size:1.3rem; font-weight:600; margin-bottom:.3rem; }
  .score-sub { color:var(--muted); font-size:.9rem; margin-bottom:2rem; }
  .score-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:2rem; }
  .score-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:1rem; }
  .score-card .sc-label { font-size:12px; color:var(--muted); margin-bottom:4px; }
  .score-card .sc-val { font-size:1.4rem; font-weight:600; }
  .sc-green { color:var(--success); }
  .sc-red { color:var(--danger); }

/* ── Multi-Select ── */
.multi-note {
  font-size: 12px;
  color: var(--accent2);
  font-style: italic;
  margin-bottom: 12px;
  padding: 6px 12px;
  background:var(--accent-soft);
  border-radius:5px;
  display: inline-block;
}
.cb {
  font-size: 16px;
  min-width: 20px;
  margin-top: -1px;
  color: var(--muted);
}
.option-btn.selected .cb { color: var(--accent2); }
.option-btn.correct .cb  { color: var(--success); }
.option-btn.wrong .cb    { color: var(--danger); }

/* ── Pause / Fortsetzen ── */
.quiz-topbar {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 1rem;
}
.bc-resume {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--success);
  background: var(--success-bg);
  border:1px solid rgba(114,190,148,.3);
  padding: 3px 10px;
  border-radius:4px;
}
.resume-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}
.resume-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .75rem;
}
.resume-sub {
  font-size: .95rem;
  color: var(--muted);
  line-height: 1.6;
}
.resume-actions { margin-top:1.5rem; }

@media (max-width: 560px) {
  body { padding-top:1.25rem; }
  .quiz-header { margin-bottom:1.5rem; }
  .quiz-header h1 { font-size:1.7rem; }
  .theme-toggle { min-width:40px; padding:8px; }
  .theme-toggle-label { position:absolute; width:1px; height:1px; overflow:hidden; clip-path:inset(50%); white-space:nowrap; }
  .block-grid { grid-template-columns:1fr; }
  .block-card.full-width { grid-column:auto; }
  .q-card { padding:1.2rem; }
  .action-row { flex-direction:column; }
  .module-card { padding:1rem; }
  .module-icon { flex-basis:42px; height:42px; }
}

/* ── Statistik-Anzeige (Modul-Karten) ── */
.module-stats {
  display:flex; align-items:center; gap:8px;
  margin-top:8px; font-size:11px; font-weight:600; color:var(--muted);
}
.module-stats-bar {
  flex:0 0 60px; height:5px; border-radius:99px;
  background:var(--surface2); overflow:hidden;
}
.module-stats-fill {
  display:block; height:100%; border-radius:99px;
  background:var(--accent);
  transition:width .5s cubic-bezier(.4,0,.2,1);
}

/* ── Statistik-Anzeige (Block-Karten) ── */
.bc-stats { display:flex; align-items:center; gap:8px; margin-top:10px; }
.bc-bar {
  flex:1; height:5px; border-radius:99px;
  background:var(--surface2); overflow:hidden;
}
.bc-bar-fill {
  display:block; height:100%; border-radius:99px;
  background:var(--danger); transition:width .5s cubic-bezier(.4,0,.2,1);
}
.bc-bar-fill.good { background:var(--success); }
.bc-best {
  flex:0 0 auto; font-size:10px; font-weight:600; color:var(--muted);
}

/* ── Live-Pills in der Quiz-Topbar ── */
.quiz-topbar {
  display:flex; align-items:center; justify-content:space-between;
  gap:12px; flex-wrap:wrap;
}
.quiz-pills { display:flex; align-items:center; gap:6px; margin-bottom:1rem; }
.pill {
  font-size:12px; font-weight:600; padding:4px 8px; border-radius:4px;
  border:1px solid var(--border); background:var(--surface2);
}
.pill-ok { color:var(--success); border-color:rgba(114,190,148,.35); background:var(--success-bg); }
.pill-bad { color:var(--danger); border-color:rgba(223,133,141,.35); background:var(--danger-bg); }
.pill-review { color:var(--accent-hover); border-color:rgba(98,172,162,.35); background:var(--accent-soft); }

/* ── Fehler-üben-Button (Ergebnisscreen) ── */
.btn-review {
  width:100%; margin-bottom:1rem; padding:13px;
  border-radius:6px; font-family:var(--font); font-size:.95rem; font-weight:600;
  cursor:pointer; transition:opacity .2s, transform .1s;
  color:var(--accent-hover); background:var(--accent-soft);
  border:1px solid rgba(98,172,162,.35);
}
.btn-review:hover { opacity:.85; }
.btn-review:active { transform:scale(.98); }

/* ── Score-Ring Farbvarianten ── */
.score-ring.ring-good { border-color:var(--success); }
.score-ring.ring-bad { border-color:var(--danger); }

/* ── Computergrafik-Lernblätter ── */
.block-intro { margin-top:.25rem; margin-bottom:1rem; }
.worksheet-grid { grid-template-columns:1fr; }
.bc-ready {
  color:var(--success) !important;
  background:var(--success-bg) !important;
  border-color:rgba(114,190,148,.3) !important;
}
.lesson-back { margin-bottom:1.25rem; }
.lesson-page { display:grid; min-width:0; max-width:100%; gap:1rem; }
.lesson-hero {
  display:flex; align-items:center; justify-content:space-between; gap:1.5rem;
  padding:1.5rem 1.6rem; border:1px solid var(--border); border-left:4px solid var(--accent); border-radius:var(--radius);
  background:var(--surface);
}
.lesson-kicker {
  display:block; margin-bottom:.55rem; color:var(--accent2); font-size:11px;
  font-weight:600; letter-spacing:.1em; text-transform:uppercase;
}
.lesson-hero h2 { max-width:520px; margin-bottom:.55rem; font-size:1.5rem; line-height:1.25; }
.lesson-hero p { max-width:560px; color:var(--muted); font-size:14px; line-height:1.6; }
.lesson-badge {
  display:grid; place-items:center; flex:0 0 auto; min-width:82px; min-height:44px; padding:8px 12px; border-radius:5px;
  color:var(--accent-hover); font-family:var(--mono); font-size:11px; font-weight:600; text-align:center;
  background:var(--accent-soft); border:1px solid rgba(98,172,162,.28);
}
.lesson-toc {
  display:flex; flex-wrap:wrap; gap:4px 16px; position:relative; z-index:1;
  padding:11px 2px; background:transparent;
  border:0; border-bottom:1px solid var(--border); border-radius:0;
}
.lesson-toc a {
  color:var(--muted); text-decoration:none; font-size:11px; font-weight:600;
  padding:5px 0; border-radius:0; border-bottom:2px solid transparent;
}
.lesson-toc a:hover { color:var(--accent); border-bottom-color:var(--accent); background:transparent; }
.lesson-section {
  min-width:0; max-width:100%;
  scroll-margin-top:72px; padding:1.65rem 0; background:transparent;
  border:0; border-top:1px solid var(--border); border-radius:0;
}
.lesson-section-heading { display:flex; align-items:flex-start; gap:13px; margin-bottom:1.25rem; }
.lesson-number {
  display:grid; place-items:center; flex:0 0 34px; height:34px; border-radius:5px;
  color:var(--accent-hover); background:var(--accent-soft);
  border:1px solid rgba(98,172,162,.28); font-family:var(--mono); font-size:11px;
}
.lesson-section-heading h3 { margin-bottom:3px; font-size:1.18rem; line-height:1.3; }
.lesson-section-heading p { color:var(--muted); font-size:13px; line-height:1.5; }
.lesson-grid { display:grid; gap:10px; }
.lesson-grid-2 { grid-template-columns:repeat(2,minmax(0,1fr)); }
.lesson-grid-3 { grid-template-columns:repeat(3,minmax(0,1fr)); }
.lesson-card {
  min-width:0; padding:1rem; background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius);
}
.lesson-card-wide { margin-bottom:1rem; }
.lesson-card h4 { margin-bottom:.45rem; color:var(--text); font-size:14px; }
.lesson-card p { color:var(--muted); font-size:13px; line-height:1.65; }
.code-answer-label { display:block; margin:1rem 0 .45rem; color:var(--text); font-weight:700; }
.code-answer-input { width:100%; min-height:18rem; resize:vertical; padding:1rem; border:1px solid var(--border); border-radius:12px; background:var(--code-bg, #101827); color:var(--code-text, #e8eef8); font:14px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace; tab-size:4; }
.code-answer-input:focus { border-color:var(--accent); outline:3px solid color-mix(in srgb, var(--accent) 18%, transparent); }
.code-editor-shortcuts { margin:.45rem 0 0; color:var(--muted); font-size:11px; line-height:1.5; }
.code-answer-solution { margin:.65rem 0 0; padding:1rem; overflow:auto; white-space:pre; border-radius:10px; background:var(--code-bg, #101827); color:var(--code-text, #e8eef8); font:13px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace; }
.exam-solution-card { margin:0 0 1rem; padding:1.1rem; border:1px solid var(--border); border-radius:14px; background:var(--surface); }
.exam-solution-card h4 { margin:0 0 .7rem; }
.exam-solution-options { display:grid; gap:.45rem; margin:.8rem 0; padding:0; list-style:none; }
.exam-solution-option { padding:.65rem .8rem; border-radius:9px; background:var(--surface-2, rgba(127,127,127,.08)); }
.exam-solution-option.correct { border-left:4px solid var(--success, #27835d); background:rgba(39,131,93,.12); }

/* BVS2: printable A4 references (original two-page sheet and the three-page code sheet) */
.cheatsheet-toolbar { display:flex; align-items:center; justify-content:space-between; gap:1rem; margin:0 0 1rem; color:var(--muted); font-size:12px; }
.cheatsheet-page { box-sizing:border-box; margin:0 auto 1.25rem; padding:10mm; max-width:210mm; min-height:297mm; border:1px solid var(--border); border-radius:10px; background:#fff; color:#101820; box-shadow:var(--shadow); }
.cheatsheet-page header { display:flex; align-items:baseline; gap:10px; margin-bottom:7px; padding-bottom:5px; border-bottom:2px solid #162d43; }
.cheatsheet-page header span,.cheatsheet-page header small { font-size:7.5pt; color:#4c5b67; }
.cheatsheet-page header h2 { margin:0; font-size:13pt; color:#102c45; }
.cheatsheet-columns { columns:3 56mm; column-gap:5mm; }
.cheatsheet-columns section { break-inside:avoid; margin:0 0 7px; padding:6px; border:1px solid #b9c4cc; border-radius:4px; background:#f7f9fa; }
.cheatsheet-page h3 { margin:0 0 3px; padding-bottom:2px; border-bottom:1px solid #9aa9b5; color:#123d5c; font-size:8.5pt; }
.cheatsheet-page p { margin:0 0 4px; font-size:7.7pt; line-height:1.3; }
.cheatsheet-page code { padding:0 2px; border-radius:2px; background:#e7edf1; color:#17232c; font:7pt/1.2 var(--mono); }
.cheatsheet-code-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:4px; }
.cheatsheet-code-grid section { min-width:0; break-inside:avoid; padding:5px; border:1px solid #b9c4cc; border-radius:4px; background:#f7f9fa; }
.cheatsheet-code-grid pre { margin:0; overflow:hidden; white-space:pre-wrap; color:#111820; font:5.8pt/1.18 var(--mono); tab-size:2; }
.cheatsheet-code-grid .cheatsheet-check { grid-column:1/-1; }
.cheatsheet-check p { font-size:7pt; line-height:1.35; }
.bvs2-source-file { margin:.7rem 0; border:1px solid var(--border); border-radius:10px; overflow:hidden; }
.bvs2-source-file summary { cursor:pointer; padding:.7rem .9rem; font-weight:700; background:var(--surface2); }
.bvs2-source-file .pi2-code { margin:0; border-radius:0; max-height:34rem; overflow:auto; }
.bvs2-full-solutions .lesson-warning { margin-top:.7rem; }
.bvs2-summary-page { margin:.85rem 0; border:1px solid var(--border); border-radius:12px; overflow:hidden; background:var(--surface); }
.bvs2-summary-page summary { cursor:pointer; padding:.75rem 1rem; font-weight:700; background:var(--surface2); }
.bvs2-summary-page pre { margin:0; padding:1rem; max-width:100%; overflow:auto; white-space:pre; font:12px/1.45 var(--mono); color:var(--text); }
.bvs2-cheatsheet-v2 .cheatsheet-code-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:5px; }
.bvs2-cheatsheet-v2 .cheatsheet-code-grid section { padding:5px; }
.bvs2-cheatsheet-v2 .cheatsheet-code-grid pre { font-size:6.5pt; line-height:1.16; }
.bvs2-cheatsheet-v2 .cheatsheet-page p { font-size:7.4pt; }
.bvs2-sheet-toolbar { max-width:210mm; margin:0 auto 1rem; }
.bvs2-sheet-toolbar .start-btn { width:auto; margin:0; }
.bvs2-sheet-nav { display:flex; flex-wrap:wrap; gap:.5rem; max-width:210mm; margin:0 auto 1rem; }
.bvs2-sheet-nav a { padding:.45rem .65rem; border:1px solid var(--border); border-radius:8px; color:var(--text); background:var(--surface); font-size:12px; text-decoration:none; }
.bvs2-sheet-nav a:hover,.bvs2-sheet-nav a:focus-visible { border-color:var(--accent); color:var(--accent); }
.bvs2-sheet-page { position:relative; padding:6mm 7mm 12mm; scroll-margin-top:1rem; }
.bvs2-sheet-page header { margin-bottom:3px; }
.bvs2-sheet-page-sub { margin:0 0 5px !important; font-size:7.5pt !important; color:#475967; }
.bvs2-sheet-columns { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:5mm; align-items:start; }
.bvs2-sheet-column { display:flex; flex-direction:column; gap:4px; min-width:0; }
.bvs2-sheet-card { min-width:0; padding:5px 6px; border:1px solid #c6d2d8; border-left:3px solid #307868; border-radius:6px; background:#f8faf9; break-inside:avoid; }
.bvs2-sheet-card--swap { border-left-color:#ae742f; background:#fffaf3; }
.bvs2-sheet-card--check { border-left-color:#456f9a; background:#f5f8fc; }
.bvs2-sheet-card-head { display:flex; align-items:baseline; justify-content:space-between; gap:5px; }
.bvs2-sheet-card h3 { margin:0; padding:0; border:0; color:#102c45; font-size:8.7pt; line-height:1.18; }
.bvs2-sheet-card-head span { flex:none; padding:2px 4px; border-radius:3px; background:#dcece6; color:#205443; font:bold 6.4pt/1 sans-serif; }
.bvs2-sheet-card--swap .bvs2-sheet-card-head span { background:#fae8cf; color:#79501c; }
.bvs2-sheet-card--check .bvs2-sheet-card-head span { background:#dfebf7; color:#335778; }
.bvs2-sheet-card small { display:block; margin:1px 0 2px; color:#52616c; font:600 6.4pt/1.1 sans-serif; letter-spacing:.04em; }
.bvs2-sheet-card pre { margin:0; overflow:visible; white-space:pre-wrap; overflow-wrap:anywhere; color:#101820; font:7.1pt/1.16 var(--mono); tab-size:4; }
.bvs2-sheet-card p { margin:3px 0 0; color:#35444f; font-size:7.1pt; line-height:1.22; }
#bvs2-sheet-web-files .bvs2-sheet-column { gap:3px; }
#bvs2-sheet-web-files .bvs2-sheet-card { padding:4px 5px; }
#bvs2-sheet-web-files .bvs2-sheet-card pre { font-size:6.5pt; line-height:1.1; }
#bvs2-sheet-web-files .bvs2-sheet-card p { font-size:6.4pt; line-height:1.15; }
.bvs2-sheet-page footer { position:absolute; left:8mm; right:8mm; bottom:6mm; padding-top:4px; border-top:1px solid #b9c4cc; color:#60717b; font-size:6.7pt; }
.bvs2-code-handbook { display:block; max-width:1100px; margin:2rem auto; border:1px solid var(--border); border-radius:12px; background:var(--surface); }
.bvs2-code-handbook > summary { display:flex; justify-content:space-between; gap:1rem; padding:1rem 1.2rem; cursor:pointer; font-weight:700; }
.bvs2-code-handbook > summary span { color:var(--muted); font-size:12px; font-weight:400; }
.bvs2-code-handbook-body { padding:0 1rem 1rem; }
.bvs2-code-handbook .lesson-hero { margin-bottom:1rem; }
.bvs2-guide-code { margin:1rem 0; }
.bvs2-guide-code h4 { margin:0 0 .4rem; }
.bvs2-guide-code .pi2-code { max-height:none; overflow:auto; white-space:pre; }
@media screen and (max-width:720px) {
  .bvs2-sheet-toolbar { flex-direction:column; align-items:stretch; }
  .bvs2-sheet-page { min-height:0; padding:1rem; }
  .bvs2-sheet-columns { grid-template-columns:1fr; }
  .bvs2-sheet-page footer { position:static; margin-top:1rem; }
  .bvs2-code-handbook > summary { flex-direction:column; }
}

/* BVS2 coding exam trainer */
.bvs2-code-trainer { max-width:100%; }
.bvs2-code-hero { margin-bottom:1rem; }
.bvs2-code-overview, .bvs2-code-modes, .bvs2-code-filters, .bvs2-code-actions, .bvs2-code-editor-tools { display:flex; flex-wrap:wrap; gap:.55rem; }
.bvs2-code-overview { margin-bottom:1rem; color:var(--muted); font-size:12px; }
.bvs2-code-overview span { padding:.4rem .65rem; border:1px solid var(--border); border-radius:6px; }
.bvs2-code-modes { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); margin-bottom:1rem; }
.bvs2-code-mode, .bvs2-code-filter, .bvs2-code-tasknav button, .bvs2-code-actions button:not(.worksheet-start), .bvs2-code-editor-tools button, .bvs2-code-find button { padding:.55rem .7rem; border:1px solid var(--border); border-radius:7px; background:var(--surface); color:var(--text); cursor:pointer; font:inherit; }
.bvs2-code-mode { text-align:left; display:flex; flex-direction:column; gap:.18rem; }
.bvs2-code-mode strong { font-size:14px; }
.bvs2-code-mode span { color:var(--muted); font-size:11px; }
.bvs2-code-mode.active, .bvs2-code-filter.active { border-color:var(--accent); background:var(--accent-soft); }
.bvs2-code-filter { font-size:12px; }
.bvs2-code-workspace { min-width:0; }
.bvs2-code-tasknav { display:grid; grid-template-columns:auto minmax(0,1fr) auto; align-items:center; gap:.65rem; margin-bottom:1.1rem; }
.bvs2-code-tasknav label, .bvs2-code-editor-heading label { font-weight:700; }
.bvs2-code-tasknav select, .bvs2-code-line-choice select, .bvs2-code-find input { min-width:0; width:100%; padding:.6rem; border:1px solid var(--border); border-radius:7px; background:var(--surface); color:var(--text); font:inherit; }
.bvs2-code-tasknav div { display:flex; gap:.4rem; }
.bvs2-code-tasknav button:disabled, .bvs2-code-actions button:disabled { opacity:.45; cursor:not-allowed; }
.bvs2-code-taskhead { padding:1rem; margin-bottom:1rem; border:1px solid var(--border); border-left:4px solid var(--accent); border-radius:7px; background:var(--surface); }
.bvs2-code-taskhead span { color:var(--accent); font:11px var(--mono); }
.bvs2-code-taskhead h3 { margin:.4rem 0; font-size:1.15rem; }
.bvs2-code-taskhead p { color:var(--muted); font-size:13px; line-height:1.55; }
.bvs2-code-editor-label { margin:.3rem 0 .6rem; font-weight:700; }
.bvs2-code-preview, .bvs2-code-solution pre { max-height:35rem; overflow:auto; padding:1rem; border:1px solid var(--border); border-radius:8px; background:var(--code-bg); color:var(--code-text); font:12px/1.55 var(--mono); tab-size:4; }
.bvs2-code-preview { max-height:26rem; }
.bvs2-code-preview-line { display:block; min-height:1.55em; white-space:pre; }
.bvs2-code-preview-line.bvs2-code-empty { color:#f5c979; background:rgba(211,173,98,.15); }
.bvs2-code-preview-line.bvs2-code-inserted { color:#a9ebc4; background:rgba(72,166,118,.23); border-left:3px solid #72be94; padding-left:.3rem; }
.bvs2-code-preview-line.bvs2-code-just-changed { animation:bvs2-code-line-flash 1.2s ease-out; }
@keyframes bvs2-code-line-flash { from { background:#3b9069; } to { background:rgba(72,166,118,.23); } }
.bvs2-code-live-status { margin:.2rem 0 .5rem; color:var(--muted); font-size:11px; }
.bvs2-code-choices { display:grid; gap:.7rem; margin:1rem 0; }
.bvs2-code-line-choice { display:grid; grid-template-columns:120px minmax(0,1fr); align-items:center; gap:.6rem; font-size:13px; }
.bvs2-code-editor-heading { display:flex; justify-content:space-between; gap:.5rem; flex-wrap:wrap; margin:.4rem 0 .55rem; }
.bvs2-code-editor-heading span { color:var(--muted); font-size:11px; }
.bvs2-code-editor-shell { display:grid; grid-template-columns:3.5rem minmax(0,1fr); height:29rem; overflow:hidden; border:1px solid var(--border); border-radius:8px; background:var(--code-bg); }
.bvs2-code-editor-shell:focus-within { border-color:var(--accent); box-shadow:var(--focus); }
.bvs2-code-editor-shell pre { overflow:hidden; padding:.9rem .45rem .9rem 0; text-align:right; border-right:1px solid var(--border); color:var(--muted); user-select:none; font:13px/1.55 var(--mono); }
.bvs2-code-editor { display:block; min-width:0; width:100%; height:100%; resize:none; overflow:auto; padding:.9rem; border:0; outline:0; background:transparent; color:var(--code-text); white-space:pre; overflow-wrap:normal; font:13px/1.55 var(--mono); tab-size:4; }
.bvs2-code-editor-shell.wrap .bvs2-code-editor { white-space:pre-wrap; overflow-wrap:anywhere; }
.bvs2-code-editor-tools { margin:.65rem 0; }
.bvs2-code-editor-tools button, .bvs2-code-find button { font-size:11px; }
.bvs2-code-find { margin:.5rem 0; color:var(--muted); font-size:12px; }
.bvs2-code-find summary { cursor:pointer; }
.bvs2-code-find div { display:grid; grid-template-columns:1fr 1fr auto auto; gap:.4rem; margin:.65rem 0; }
.bvs2-code-shortcuts, .bvs2-code-note { color:var(--muted); font-size:11px; line-height:1.55; }
.bvs2-code-actions { align-items:center; margin:1rem 0; }
.bvs2-code-feedback, .bvs2-code-solution, .bvs2-code-hint { margin:1rem 0; padding:1rem; border:1px solid var(--border); border-radius:8px; background:var(--surface); }
.bvs2-code-feedback h4, .bvs2-code-solution h4 { margin:0 0 .5rem; }
.bvs2-code-feedback p, .bvs2-code-solution p, .bvs2-code-hint { font-size:12px; line-height:1.55; }
.bvs2-code-feedback p, .bvs2-code-solution p { color:var(--muted); }
.bvs2-code-feedback ul { display:flex; flex-wrap:wrap; gap:.45rem; list-style:none; margin:.8rem 0 0; padding:0; }
.bvs2-code-feedback li { padding:.25rem .45rem; border-radius:5px; font-size:11px; }
.bvs2-code-feedback li code { display:block; max-width:100%; margin-top:.25rem; overflow-wrap:anywhere; font:11px/1.45 var(--mono); }
.bvs2-code-feedback li.pass { background:var(--success-bg); color:var(--success); }
.bvs2-code-feedback li.miss { background:var(--warning-bg); color:var(--warning); }
.bvs2-code-solution pre { margin:.7rem 0; }
.bvs2-code-note { margin:1rem 0 0; }
.bvs2-path-map { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:.7rem; margin-bottom:1rem; }
.bvs2-path-map article { display:flex; gap:.7rem; padding:.8rem; border:1px solid var(--border); border-radius:8px; background:var(--surface); }
.bvs2-path-map article > span { display:grid; place-items:center; flex:0 0 1.8rem; height:1.8rem; border-radius:50%; background:var(--accent-soft); color:var(--accent); font-weight:800; }
.bvs2-path-map p { margin:.2rem 0 0; color:var(--muted); font-size:11px; line-height:1.4; }
.bvs2-path-progress { margin-bottom:1rem; }
.bvs2-path-progress > div:first-child { display:flex; justify-content:space-between; margin-bottom:.45rem; font-size:12px; }
.bvs2-path-layout { display:grid; grid-template-columns:minmax(235px,290px) minmax(0,1fr); align-items:start; gap:1rem; }
.bvs2-path-nav { position:sticky; top:1rem; max-height:calc(100vh - 2rem); overflow:auto; padding:1rem; border:1px solid var(--border); border-radius:10px; background:var(--surface); }
.bvs2-path-nav > h3 { margin:0; }
.bvs2-path-nav > p { margin:.25rem 0 1rem; color:var(--muted); font-size:11px; }
.bvs2-path-stage { border-top:1px solid var(--border); }
.bvs2-path-stage > summary { display:flex; justify-content:space-between; gap:.5rem; padding:.7rem .15rem; cursor:pointer; list-style:none; }
.bvs2-path-stage > summary::-webkit-details-marker { display:none; }
.bvs2-path-stage > summary span { display:flex; flex-direction:column; gap:.1rem; }
.bvs2-path-stage > summary small { color:var(--muted); font-size:10px; font-weight:400; }
.bvs2-path-stage > summary em { color:var(--muted); font-size:10px; font-style:normal; }
.bvs2-path-stage > div { display:grid; gap:.35rem; padding:0 0 .7rem; }
.bvs2-path-task { display:grid; grid-template-columns:1.5rem minmax(0,1fr); align-items:start; gap:.45rem; width:100%; padding:.5rem; border:1px solid transparent; border-radius:7px; background:transparent; color:var(--text); text-align:left; cursor:pointer; font:inherit; }
.bvs2-path-task:hover, .bvs2-path-task.active { border-color:var(--border); background:var(--accent-soft); }
.bvs2-path-task.active { border-color:var(--accent); }
.bvs2-path-task > span:first-child { display:grid; place-items:center; min-height:1.35rem; border-radius:50%; background:var(--border); color:var(--muted); font-size:9px; }
.bvs2-path-task.complete > span:first-child { background:var(--success-bg); color:var(--success); }
.bvs2-path-task > span:last-child { display:flex; flex-direction:column; gap:.12rem; min-width:0; }
.bvs2-path-task strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:11px; }
.bvs2-path-task small { overflow:hidden; color:var(--muted); font-size:9px; text-overflow:ellipsis; white-space:nowrap; }
.bvs2-path-work { min-width:0; margin:0; }
.bvs2-path-work > h2 { margin:.4rem 0 1rem; }
.bvs2-path-breadcrumb { display:flex; justify-content:space-between; gap:.5rem; color:var(--accent); font:10px var(--mono); }
.bvs2-path-theory { margin-bottom:1rem; padding:1rem; border-left:4px solid var(--accent); border-radius:8px; background:var(--accent-soft); }
.bvs2-path-theory span { color:var(--accent); font-size:10px; font-weight:800; letter-spacing:.08em; text-transform:uppercase; }
.bvs2-path-theory strong { display:block; margin-top:.7rem; }
.bvs2-path-theory p { margin:.3rem 0 0; color:var(--muted); font-size:13px; line-height:1.6; }
.bvs2-path-steps { margin-bottom:1rem; }
.bvs2-path-steps h3 { margin:0 0 .55rem; font-size:14px; }
.bvs2-path-steps ol { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.45rem; margin:0; padding:0; list-style:none; counter-reset:path-step; }
.bvs2-path-steps li { position:relative; min-height:2rem; padding:.55rem .55rem .55rem 2.1rem; border:1px solid var(--border); border-radius:7px; color:var(--muted); font-size:11px; line-height:1.45; counter-increment:path-step; }
.bvs2-path-steps li::before { content:counter(path-step); position:absolute; left:.55rem; top:.5rem; display:grid; place-items:center; width:1.15rem; height:1.15rem; border-radius:50%; background:var(--accent-soft); color:var(--accent); font-size:9px; font-weight:800; }
.bvs2-path-feedback { margin-top:.7rem; }
.bvs2-path-next { display:flex; justify-content:space-between; gap:.6rem; margin-top:1rem; padding-top:1rem; border-top:1px solid var(--border); }
.bvs2-path-next button:not(.worksheet-start) { padding:.55rem .7rem; border:1px solid var(--border); border-radius:7px; background:var(--surface); color:var(--text); cursor:pointer; font:inherit; }
.bvs2-path-next button:disabled { opacity:.4; cursor:not-allowed; }
@media (max-width:680px) {
  .bvs2-code-modes { grid-template-columns:1fr; }
  .bvs2-code-tasknav { grid-template-columns:1fr; }
  .bvs2-code-tasknav div { justify-content:space-between; }
  .bvs2-code-line-choice { grid-template-columns:1fr; }
  .bvs2-code-find div { grid-template-columns:1fr 1fr; }
  .bvs2-code-editor-shell { grid-template-columns:2.7rem minmax(0,1fr); }
  .credit-viewport { height:65vh; min-height:440px; }
  .credit-numbers { gap:.35rem; }
  .credit-numbers strong { font-size:1.35rem; }
  .credit-controls { flex-wrap:wrap; }
  .credit-controls span { width:100%; margin:0; }
  .bvs2-path-map { grid-template-columns:1fr; }
  .bvs2-path-layout { grid-template-columns:1fr; }
  .bvs2-path-nav { position:static; max-height:24rem; }
  .bvs2-path-steps ol { grid-template-columns:1fr; }
  .bvs2-path-breadcrumb { flex-direction:column; }
}

@media print {
  @page { size:A4 portrait; margin:0; }
  body * { visibility:hidden !important; }
  #bvs2-cheatsheet, #bvs2-cheatsheet *, #bvs2-cheatsheet-v2, #bvs2-cheatsheet-v2 * { visibility:visible !important; }
  #bvs2-cheatsheet, #bvs2-cheatsheet-v2 { position:absolute; inset:0; width:210mm; margin:0; }
  .cheatsheet-toolbar { display:none !important; }
  .bvs2-sheet-nav { display:none !important; }
  .bvs2-code-handbook { display:none !important; }
  .cheatsheet-page { width:210mm; height:297mm; min-height:297mm; max-height:297mm; margin:0; border:0; border-radius:0; box-shadow:none; overflow:hidden; page-break-after:always; break-after:page; }
  .cheatsheet-page:last-child { page-break-after:auto; break-after:auto; }
}
.lesson-card .formula { margin-top:.7rem; }
.lesson-flow { display:flex; align-items:stretch; gap:8px; margin-bottom:1rem; }
.flow-step {
  display:flex; flex:1; min-width:0; flex-direction:column; align-items:center; justify-content:center;
  padding:12px 8px; text-align:center; border:1px solid var(--border); border-radius:11px;
  background:var(--surface2);
}
.flow-step span {
  display:grid; place-items:center; width:24px; height:24px; margin-bottom:6px;
  border-radius:50%; color:var(--accent-hover); background:var(--accent-soft); font-size:11px;
}
.flow-step strong { font-family:var(--mono); font-size:12px; }
.flow-step small { margin-top:4px; color:var(--muted); font-size:10px; line-height:1.35; }
.flow-arrow { display:grid; place-items:center; color:var(--muted); }
.lesson-note, .lesson-callout, .lesson-warning {
  margin-top:1rem; padding:12px 14px; border-radius:10px; font-size:13px; line-height:1.65;
  color:var(--muted); background:var(--bg); border:1px solid var(--border);
}
.lesson-callout { border-left:3px solid var(--accent); }
.lesson-warning { border-left:3px solid var(--warning); background:var(--warning-bg); }
.lesson-note strong, .lesson-callout strong, .lesson-warning strong { color:var(--text); }
.lesson-code {
  margin:1rem 0; padding:14px 16px; overflow-x:auto; white-space:pre;
  color:var(--code-text); background:var(--code-bg); border:1px solid var(--border); border-radius:6px;
  font-family:var(--mono); font-size:12px; line-height:1.65;
}
.lesson-code code { font-family:inherit; }
.formula {
  overflow-x:auto; padding:11px 13px; color:var(--text); text-align:center;
  background:var(--bg); border:1px solid var(--border); border-radius:9px;
  font-family:var(--mono); font-size:13px; line-height:1.55;
}
.formula-accent { color:var(--accent-hover); border-color:rgba(98,172,162,.34); }
.formula-main { margin-bottom:1rem; padding:16px; color:var(--accent2); font-size:15px; }
.formula-stack { display:grid; gap:8px; margin:1rem 0; }
.rgba-row { display:grid; grid-template-columns:repeat(4,1fr); gap:7px; margin-top:10px; }
.rgba-row span {
  padding:8px; border-radius:8px; color:var(--muted); text-align:center;
  background:var(--bg); border:1px solid var(--border); font-size:11px;
}
.rgba-row b { color:var(--accent2); }
.lesson-subheading { margin:1.35rem 0 .7rem; font-size:1rem; }
.lesson-text { margin:.65rem 0; color:var(--muted); font-size:13px; line-height:1.7; }
.derivation { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin:1rem 0; }
.derivation > div {
  display:flex; align-items:center; gap:9px; padding:10px; border:1px solid var(--border);
  border-radius:10px; background:var(--surface2);
}
.derivation span {
  display:grid; place-items:center; flex:0 0 26px; height:26px; border-radius:50%;
  color:var(--accent-hover); background:var(--accent-soft); font-size:11px; font-weight:600;
}
.derivation p { color:var(--muted); font-size:12px; line-height:1.5; }
.derivation p strong { color:var(--text); }
.derivation-vertical { grid-template-columns:1fr; }
.point-grid, .result-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:9px; margin-bottom:1rem; }
.point-grid > div, .result-grid > div {
  display:flex; flex-direction:column; align-items:center; gap:5px; padding:12px 8px;
  border:1px solid var(--border); border-radius:10px; background:var(--surface2); text-align:center;
}
.point-grid span { color:var(--accent2); font-size:15px; font-weight:600; }
.point-grid code { color:var(--text); font-family:var(--mono); font-size:11px; }
.result-grid span { color:var(--muted); font-size:11px; }
.result-grid strong { color:var(--accent2); font-size:14px; }
.result-grid small { color:var(--muted); font-size:10px; }
.lesson-details { margin-top:1rem; border:1px solid var(--border); border-radius:10px; background:var(--surface2); }
.lesson-details summary { padding:12px 14px; color:var(--text); cursor:pointer; font-size:13px; font-weight:600; }
.lesson-details[open] summary { border-bottom:1px solid var(--border); }
.lesson-details > p { padding:0 14px 14px; color:var(--muted); font-size:12px; line-height:1.6; }
.lesson-details .lesson-code { margin:12px 14px; }
.formula-list { display:grid; gap:7px; }
.formula-list > div {
  display:grid; grid-template-columns:minmax(150px,.7fr) minmax(0,1.3fr); gap:14px;
  align-items:center; padding:11px 12px; border-radius:9px; background:var(--surface2);
  border:1px solid var(--border);
}
.formula-list span { color:var(--muted); font-size:12px; }
.formula-list strong { overflow-x:auto; color:var(--text); font-family:var(--mono); font-size:12px; line-height:1.5; }
.priority-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:9px; }
.priority-card { padding:1rem; border:1px solid var(--border); border-radius:10px; background:var(--surface2); }
.priority-card > span { display:block; margin-bottom:.6rem; color:var(--accent2); font-size:12px; font-weight:600; }
.priority-card ul { padding-left:17px; color:var(--muted); font-size:12px; line-height:1.75; }
.priority-high { border-top:3px solid var(--success); }
.priority-low { border-top:3px solid var(--muted); }
.qa-list { display:grid; gap:8px; }
.qa-item { overflow:hidden; border:1px solid var(--border); border-radius:10px; background:var(--surface2); }
.qa-item summary {
  display:flex; align-items:flex-start; gap:10px; padding:13px 14px; cursor:pointer;
  color:var(--text); font-size:13px; line-height:1.5; list-style:none;
}
.qa-item summary::-webkit-details-marker { display:none; }
.qa-item summary span {
  display:grid; place-items:center; flex:0 0 25px; height:25px; border-radius:50%;
  color:var(--accent-hover); background:var(--accent-soft); font-size:11px; font-weight:600;
}
.qa-item[open] summary { border-bottom:1px solid var(--border); }
.qa-item > div { padding:13px 14px 14px 49px; }
.qa-item p { color:var(--muted); font-size:13px; line-height:1.7; }
.lesson-quiz-button { margin-top:1rem; }
.bvs2-lab-quiz-launch { margin-top:1rem; border-color:color-mix(in srgb, var(--accent) 38%, var(--border)); }
.bvs2-lab-quiz-launch .lesson-quiz-button { margin-top:.9rem; }
.bvs2-lab-quiz-progress { display:grid; gap:.55rem; margin-top:.8rem; }
.bvs2-lab-progress-copy { display:flex; align-items:center; justify-content:space-between; gap:1rem; color:var(--muted); font-size:.86rem; }
.bvs2-lab-progress-copy strong { color:var(--text); font-weight:650; }
.bvs2-staged-result .action-row { justify-content:center; }
.bvs2-staged-complete { max-width:720px; }
@media (max-width:640px) {
  .bvs2-lab-progress-copy { align-items:flex-start; flex-direction:column; gap:.25rem; }
  .bvs2-lab-quiz-launch .lesson-quiz-button { width:100%; }
}

/* ── ITS: eine durchgehende Formel- und Eigenschaftensammlung ── */
.formula-scroll-page { gap:14px; }
.formula-scroll-hero { border-color:var(--border); border-left-color:var(--accent); background:var(--surface); }
.formula-scroll-toc {
  position:sticky; top:10px; z-index:8; max-height:116px; overflow-y:auto;
  background:rgba(16,23,30,.96); box-shadow:none;
}
.formula-scroll-toc a { font-size:12px; }
.fs-section { scroll-margin-top:136px; }
.fs-section h4 { color:var(--text); }
.fs-subtitle { margin:1.55rem 0 .7rem; padding-top:.15rem; font-size:1rem; line-height:1.35; }
.fs-text { margin:.72rem 0; color:var(--muted); font-size:14px; line-height:1.72; }
.fs-text strong { color:var(--text); }
.fs-equation {
  margin:.7rem 0; padding:13px 15px; overflow-x:auto; color:var(--text); text-align:center;
  white-space:normal; background:var(--bg); border:1px solid var(--border); border-radius:10px;
  font-family:"STIX Two Math","Cambria Math","Times New Roman",serif; font-size:1.05rem; line-height:1.6;
}
.fs-equation code { font-family:var(--mono); font-size:.83rem; }
.fs-equation-main { color:var(--accent-hover); border-color:rgba(98,172,162,.38); font-size:1.12rem; font-weight:600; }
.fs-equation-accent { color:var(--accent-hover); border-color:rgba(98,172,162,.32); }
.fs-equation-danger { color:var(--danger); background:var(--danger-bg); border-color:rgba(223,133,141,.35); font-weight:600; }
.fs-table-wrap { max-width:100%; margin:.85rem 0 1rem; overflow-x:auto; border:1px solid var(--border); border-radius:12px; }
.fs-table { width:100%; min-width:600px; border-collapse:collapse; color:var(--text); background:var(--surface); font-size:13px; line-height:1.48; }
.fs-mode-table { min-width:900px; }
.fs-table th, .fs-table td { padding:11px 12px; border-right:1px solid var(--border); border-bottom:1px solid var(--border); text-align:left; vertical-align:top; }
.fs-table th { color:var(--accent2); background:var(--surface2); font-size:12px; font-weight:700; }
.fs-table tr:last-child > * { border-bottom:0; }
.fs-table tr > *:last-child { border-right:0; }
.fs-table tbody tr:nth-child(even) td { background:rgba(255,255,255,.018); }
.fs-yes { color:var(--success); font-weight:600; }
.fs-no { color:var(--danger); font-weight:600; }
.fs-split { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; margin:1rem 0; }
.fs-split > article { min-width:0; padding:16px; background:var(--surface2); border:1px solid var(--border); border-radius:12px; }
.fs-split > article > h4 { margin-bottom:.65rem; font-size:15px; }
.fs-rule-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:9px; }
.fs-rule { display:flex; min-width:0; flex-direction:column; gap:5px; padding:13px; background:var(--surface2); border:1px solid var(--border); border-radius:10px; }
.fs-rule b { color:var(--accent2); font-size:13px; }
.fs-rule span { color:var(--muted); font-size:13px; line-height:1.55; }
.fs-steps { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; margin:1rem 0; }
.fs-steps > div { display:flex; min-width:0; align-items:flex-start; gap:9px; padding:12px; background:var(--surface2); border:1px solid var(--border); border-radius:10px; }
.fs-steps b { display:grid; place-items:center; flex:0 0 25px; height:25px; color:var(--accent-hover); background:var(--accent-soft); border-radius:50%; font-size:11px; }
.fs-steps span { color:var(--muted); font-size:13px; line-height:1.55; }
.fs-steps-vertical { grid-template-columns:1fr; }
.fs-callout { margin:1rem 0; padding:13px 15px; color:var(--muted); background:var(--bg); border:1px solid var(--border); border-left:4px solid var(--accent); border-radius:10px; font-size:14px; line-height:1.68; }
.fs-callout strong { color:var(--text); }
.fs-callout-warning { border-left-color:var(--warning); background:var(--warning-bg); }
.fs-callout-important { border-left-color:var(--success); }
.fs-example { display:flex; align-items:center; justify-content:space-between; gap:16px; margin:.8rem 0; padding:11px 13px; color:var(--muted); background:var(--success-bg); border:1px solid rgba(114,190,148,.25); border-radius:8px; font-size:13px; }
.fs-example b { color:var(--success); }
.fs-example span { color:var(--text); font-family:var(--mono); }
.fs-list { margin:.7rem 0; padding-left:20px; color:var(--muted); font-size:14px; line-height:1.72; }
.fs-list li + li { margin-top:.3rem; }
.fs-checklist { display:grid; gap:8px; margin:1rem 0; padding:16px; background:var(--surface2); border:1px solid var(--border); border-radius:12px; }
.fs-checklist h4 { margin-bottom:2px; font-size:15px; }
.fs-checklist label { color:var(--muted); font-size:14px; line-height:1.5; }

@media (max-width:700px) {
  .lesson-grid-3, .priority-grid { grid-template-columns:1fr; }
  .lesson-flow { flex-direction:column; }
  .flow-arrow { transform:rotate(90deg); min-height:20px; }
  .formula-list > div { grid-template-columns:1fr; gap:5px; }
  .fs-split, .fs-rule-grid, .fs-steps { grid-template-columns:1fr; }
}

@media (max-width:560px) {
  body { padding:.9rem .8rem 3rem; }
  .quiz-header { column-gap:.75rem; margin-bottom:1.4rem; padding:.55rem 0 1rem; }
  .brand-mark { width:42px; height:42px; font-size:10px; }
  .quiz-header .tag { font-size:9px; }
  .quiz-header h1 { font-size:1.45rem; }
  .quiz-header p { font-size:.84rem; }
  .lesson-hero { align-items:flex-start; padding:1.25rem; }
  .lesson-badge { display:none; }
  .lesson-hero h2 { font-size:1.25rem; }
  .lesson-section { padding:1.15rem; }
  .lesson-grid-2, .derivation, .point-grid, .result-grid { grid-template-columns:1fr; }
  .rgba-row { grid-template-columns:repeat(2,1fr); }
  .lesson-toc { position:static; }
  .formula-scroll-toc { max-height:none; }
  .fs-section { scroll-margin-top:20px; }
  .fs-table { min-width:560px; }
  .fs-equation { padding:11px 12px; font-size:.98rem; }
  .qa-item > div { padding-left:14px; }
  .semester-grid {
  grid-template-columns: 1fr;
}

.semester-card {
  min-height: 190px;
}
}


/* ── Scrollbarer Lern-Chat ── */
.chat-lesson-section { padding-bottom:1rem; }
.study-chat {
  min-width:0; max-width:100%; max-height:680px; overflow-x:hidden; overflow-y:auto; overscroll-behavior:contain; scroll-behavior:smooth;
  padding:18px; border:1px solid var(--border); border-radius:var(--radius);
  background:var(--chat-bg);
  scrollbar-width:thin; scrollbar-color:rgba(98,172,162,.5) transparent;
}
.study-chat::-webkit-scrollbar { width:9px; }
.study-chat::-webkit-scrollbar-track { background:transparent; }
.study-chat::-webkit-scrollbar-thumb { background:rgba(98,172,162,.42); border-radius:6px; border:2px solid transparent; background-clip:padding-box; }
.study-chat::-webkit-scrollbar-thumb:hover { background:rgba(98,172,162,.66); background-clip:padding-box; }
.chat-message {
  width:min(92%,760px); margin:0 0 14px; padding:16px 18px; border-radius:var(--radius);
  border:1px solid var(--border); box-shadow:none;
}
.chat-message:last-child { margin-bottom:0; }
.chat-assistant { margin-right:auto; background:var(--surface); border-left:3px solid var(--accent2); }
.chat-user { margin-left:auto; background:var(--accent-soft); border-color:rgba(98,172,162,.3); border-left:3px solid var(--accent); }
.chat-role {
  margin-bottom:10px; color:var(--accent2); font-size:10px; font-weight:700;
  letter-spacing:.11em; text-transform:uppercase;
}
.chat-message h3 { margin:1.25rem 0 .8rem; font-size:1.25rem; }
.chat-message h4 { margin:1.25rem 0 .5rem; color:var(--text); font-size:1rem; }
.chat-message h5 { margin:1rem 0 .4rem; color:var(--text); font-size:.9rem; }
.chat-message p { margin:.5rem 0; color:var(--muted); font-size:13px; line-height:1.75; }
.chat-message p strong { color:var(--text); }
.chat-message code { font-family:var(--mono); color:var(--accent-hover); }
.chat-code {
  margin:.8rem 0; padding:13px 14px; overflow-x:auto; color:var(--code-text);
  background:var(--code-bg); border:1px solid var(--border); border-radius:6px;
  font-family:var(--mono); font-size:12px; line-height:1.6; white-space:pre;
}
.chat-code code { font-family:inherit; }
.chat-formula {
  margin:.75rem 0; padding:11px 13px; overflow-x:auto; text-align:center;
  color:var(--text); background:var(--bg); border:1px solid var(--border);
  border-radius:9px; font-family:var(--mono); font-size:12.5px; line-height:1.7;
}
.chat-formula-accent, .chat-formula-main { color:var(--accent-hover); border-color:rgba(98,172,162,.34); }
.chat-formula-main { padding:14px; font-size:14px; }
.chat-note, .chat-success {
  margin:.9rem 0; padding:12px 13px; color:var(--muted); background:var(--bg);
  border:1px solid var(--border); border-left:3px solid var(--accent); border-radius:9px;
  font-size:13px; line-height:1.65;
}
.chat-success { border-left-color:var(--success); background:var(--success-bg); }
.chat-note strong, .chat-success strong { color:var(--text); }
.chat-result-row { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:7px; margin:.8rem 0; }
.chat-result-row span {
  padding:9px; color:var(--accent2); background:var(--bg); border:1px solid var(--border);
  border-radius:8px; text-align:center; font-family:var(--mono); font-size:11px; line-height:1.45;
}
.chat-formula-list { display:grid; gap:6px; margin:.8rem 0; }
.chat-formula-list > div {
  display:grid; grid-template-columns:minmax(145px,.7fr) minmax(0,1.3fr); gap:10px;
  padding:9px 10px; border:1px solid var(--border); border-radius:8px; background:var(--bg);
}
.chat-formula-list b { color:var(--text); font-size:11px; }
.chat-formula-list span { overflow-x:auto; color:var(--muted); font-family:var(--mono); font-size:11px; line-height:1.45; }
.chat-question-list { padding-left:1.3rem; color:var(--muted); font-size:13px; line-height:1.75; }
.chat-scroll-hint { margin:.65rem 0 0; color:var(--muted); text-align:center; font-size:11px; }

@media (max-width:700px) {
  .study-chat { max-height:620px; padding:12px; }
  .chat-message { width:94%; padding:14px; }
  .chat-result-row, .chat-formula-list > div { grid-template-columns:1fr; }
}

/* ── Blatt 2: Möbiusband-Erklärungen ── */
.moebius-mini-steps,
.moebius-build,
.orientation-loop {
  display:flex; align-items:stretch; gap:8px; margin:1rem 0;
}
.moebius-mini-steps span,
.moebius-build > div:not(.flow-arrow),
.orientation-loop > div:not(.flow-arrow) {
  flex:1; display:flex; flex-direction:column; justify-content:center; align-items:center;
  min-height:76px; padding:10px; text-align:center; border:1px solid var(--border);
  border-radius:10px; background:var(--surface2); color:var(--muted); font-size:11px;
}
.moebius-mini-steps b { align-self:center; color:var(--accent2); }
.moebius-build span {
  display:grid; place-items:center; width:25px; height:25px; margin-bottom:6px;
  border-radius:50%; color:var(--accent-hover); background:var(--accent-soft); font-size:11px;
}
.moebius-build strong,
.orientation-loop strong { color:var(--text); font-size:12px; }
.moebius-build small,
.orientation-loop span { margin-top:5px; color:var(--muted); font-size:10px; line-height:1.4; }
.moebius-focus { border-top:3px solid var(--accent); }
.moebius-cell-grid {
  display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:7px; margin:1rem auto;
  width:min(100%,420px);
}
.moebius-cell-grid span {
  padding:12px; border:1px solid var(--border); border-radius:9px;
  background:var(--surface2); color:var(--accent2); text-align:center;
  font-family:var(--mono); font-size:11px;
}

@media (max-width:700px) {
  .moebius-mini-steps,
  .moebius-build,
  .orientation-loop { flex-direction:column; }
  .moebius-mini-steps b,
  .moebius-build .flow-arrow,
  .orientation-loop .flow-arrow { transform:rotate(90deg); min-height:20px; }
}

/* ── Computergrafik: Untermenüs Blätter / Vorlesungen ── */
.cg-group-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
.cg-group-card { min-height:145px; }
.lecture-block-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
.lecture-block-grid .block-card { min-height:145px; }
.lecture-block-grid .bc-sub { padding-right:72px; line-height:1.55; }
.worksheet-start {
  display:inline-flex; align-items:center; justify-content:center;
  margin-top:1rem; min-height:44px; padding:10px 18px;
  color:var(--accent-contrast); background:var(--accent);
  border:1px solid var(--accent); border-radius:6px; box-shadow:none;
  font-family:var(--font); font-size:13px; font-weight:600; cursor:pointer;
  transition:transform .12s, background .15s, border-color .15s;
}
.worksheet-start:hover { transform:translateY(-1px); background:var(--accent-hover); border-color:var(--accent-hover); }
.worksheet-start:active { transform:translateY(0); }
.lecture-check-card .worksheet-start { width:100%; }
.lesson-section > .worksheet-start:last-child { width:100%; }
.original-quiz-actions {display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;overflow:visible!important}
.original-quiz-actions .worksheet-start {width:100%;margin-top:0;text-decoration:none;box-sizing:border-box}
.original-quiz-actions .secondary-start {color:var(--accent);background:var(--surface);border:1px solid var(--accent);box-shadow:none}

/* ── Scrollbare Vorlesungsskripte ── */
.lecture-hero { background:var(--surface); }
.lecture-study-chat { max-height:760px; }
.lecture-chat-card { width:100%; min-width:0; max-width:100%; margin-left:0; margin-right:0; }
.lecture-chat-card h3 { margin-top:.15rem; }
.lecture-bullets,
.lecture-steps,
.lecture-checklist {
  margin:.75rem 0; padding-left:1.35rem; color:var(--muted); font-size:13px; line-height:1.75;
}
.lecture-bullets li,
.lecture-steps li,
.lecture-checklist li { margin:.28rem 0; }
.lecture-bullets li::marker { color:var(--accent2); }
.lecture-steps li::marker { color:var(--accent2); font-weight:700; }
.lecture-check-card { border-color:rgba(98,172,162,.35); background:var(--accent-soft); }
.lecture-checklist { list-style:none; padding-left:0; display:grid; gap:7px; }
.lecture-checklist li {
  position:relative; padding:9px 10px 9px 34px; border:1px solid var(--border);
  border-radius:8px; background:var(--bg);
}
.lecture-checklist li::before {
  content:"✓"; position:absolute; left:11px; top:9px; color:var(--success); font-weight:700;
}
.lecture-image-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; margin-top:1rem; }
.lecture-image-grid:has(.lecture-figure:only-child) { grid-template-columns:1fr; }
.lecture-figure {
  overflow:hidden; margin:0; border:1px solid var(--border); border-radius:10px; background:var(--bg);
}
.lecture-figure a { display:block; }
.lecture-figure img { display:block; width:100%; max-height:360px; object-fit:contain; background:#f3f4f2; }
.lecture-figure figcaption { padding:8px 10px; color:var(--muted); font-size:10px; line-height:1.45; }
.lecture-page .chat-formula-list span { white-space:normal; overflow-wrap:anywhere; }

@media (max-width:760px) {
  .cg-group-grid,
  .lecture-block-grid,
  .lecture-image-grid { grid-template-columns:1fr; }
  .lecture-block-grid .bc-sub { padding-right:0; }
  .lecture-study-chat { max-height:670px; }
}

/* Originale pySELL-/Moodle-Quizze werden unverändert in der App ausgeführt. */
.original-quiz-toolbar {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:12px;
  padding:10px 0;
  border:0;
  border-bottom:1px solid var(--border);
  border-radius:0;
  background:transparent;
  color:var(--muted);
  font-size:11px;
}
.original-quiz-toolbar .back-link { margin:0; }
.original-quiz-toolbar .btn { text-decoration:none; white-space:nowrap; }
.original-quiz-frame {
  display:block;
  width:100%;
  min-height:320px;
  height:800px;
  border:0;
  background:transparent;
}

.bvs2-pdf-section { min-width:0; }
.bvs2-pdf-viewer {
  width:100%;
  height:min(78vh, 900px);
  min-height:560px;
  overflow:hidden;
  border:1px solid var(--border);
  border-radius:7px;
  background:#d9dde0;
  box-shadow:inset 0 1px 2px rgba(15, 23, 42, .08);
}
.bvs2-pdf-viewer iframe {
  display:block;
  width:100%;
  height:100%;
  border:0;
  background:#fff;
}
.bvs2-pdf-actions {
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:10px;
  margin-top:12px;
}
.bvs2-pdf-actions .worksheet-start {
  width:100%;
  margin:0;
  box-sizing:border-box;
  text-align:center;
  text-decoration:none;
}
@media (max-width:760px) {
  .original-quiz-toolbar { align-items:stretch; flex-direction:column; }
  .original-quiz-toolbar .btn { text-align:center; }
  .original-quiz-frame { min-height:320px; }
  .bvs2-pdf-viewer { height:72vh; min-height:440px; }
  .bvs2-pdf-actions { grid-template-columns:1fr; }
}

/* ── BWR: Vorlesungsskripte, Lexikon und Klausur-Fragetypen ── */
.bwr-page .lesson-section { scroll-margin-top:88px; }
.pi2-page .lesson-section { scroll-margin-top:88px; }
.pi2-code,
.pi2-tree {
  margin:1rem 0; padding:14px 16px; overflow:auto; border:1px solid var(--border);
  border-radius:7px; background:var(--code-bg); color:var(--code-text); font-family:var(--mono);
  font-size:12px; line-height:1.65; white-space:pre;
}
.pi2-tree { text-align:left; background:var(--accent-soft); }
.pi2-task {
  margin:10px 0; padding:14px; border:1px solid var(--border); border-radius:11px;
  background:var(--surface2);
}
.pi2-task h4 { margin-bottom:7px; font-size:14px; }
.pi2-task p { color:var(--muted); font-size:13px; line-height:1.65; }
.pi2-task details { margin-top:10px; padding-top:10px; border-top:1px solid var(--border); }
.pi2-task summary { color:var(--accent2); cursor:pointer; font-size:12px; font-weight:600; }
.pi2-task details[open] summary { margin-bottom:8px; }
.bwr-table-wrap {
  width:100%; min-width:0; max-width:100%; margin:1rem 0; overflow-x:auto; border:1px solid var(--border);
  border-radius:12px; background:var(--surface2);
}
.bwr-table { width:100%; min-width:690px; border-collapse:collapse; font-size:12px; line-height:1.55; }
.bwr-table th, .bwr-table td { padding:11px 12px; border-bottom:1px solid var(--border); text-align:left; vertical-align:top; }
.bwr-table th { color:var(--text); background:var(--surface2); font-size:11px; letter-spacing:.03em; }
.bwr-table td { color:var(--muted); }
.bwr-table td:first-child { color:var(--text); font-weight:600; }
.bwr-table tr:last-child td { border-bottom:0; }
.bwr-glossary-table th:first-child, .bwr-glossary-table td:first-child { width:23%; }
.bwr-formula-list { margin-bottom:1rem; }

.goods-matrix {
  display:grid; grid-template-columns:minmax(130px,.75fr) repeat(2,minmax(0,1fr));
  gap:7px; margin:1rem 0;
}
.goods-matrix > div {
  min-height:86px; padding:11px; border:1px solid var(--border); border-radius:9px;
  background:var(--surface2); color:var(--muted); font-size:11px; line-height:1.5;
}
.goods-matrix .goods-matrix-head, .goods-matrix .goods-matrix-side {
  min-height:auto; display:grid; place-items:center; color:var(--text); font-weight:600;
  background:var(--accent-soft); text-align:center;
}
.goods-matrix > div strong { display:block; margin-bottom:5px; color:var(--accent2); font-size:12px; }
.goods-matrix > div span { display:block; }

.competency-cloud { display:flex; flex-wrap:wrap; gap:8px; margin:1rem 0; }
.competency-cloud span {
  padding:7px 11px; border:1px solid rgba(98,172,162,.3); border-radius:5px;
  color:var(--accent-hover); background:var(--accent-soft); font-size:11px; font-weight:600;
}

.question-type-note {
  display:inline-block; margin-bottom:12px; padding:6px 12px; border-radius:8px;
  color:var(--accent-hover); background:var(--accent-soft); font-size:12px; font-style:italic;
}
.fill-answer-wrap { display:grid; gap:7px; margin-top:4px; }
.fill-answer-wrap > span { color:var(--muted); font-size:12px; font-weight:600; }
.fill-answer {
  width:100%; padding:13px 14px; border:1.5px solid var(--border); border-radius:10px;
  outline:none; color:var(--text); background:var(--surface2); font:500 14px var(--font);
  transition:border-color .2s, box-shadow .2s;
}
.fill-answer:focus { border-color:var(--accent); box-shadow:var(--focus); }
.fill-answer.correct { border-color:var(--success); background:var(--success-bg); }
.fill-answer.wrong { border-color:var(--danger); background:var(--danger-bg); }
.fill-solution {
  margin-top:10px; padding:10px 12px; border:1px solid rgba(114,190,148,.3); border-radius:7px;
  color:var(--muted); background:var(--success-bg); font-size:12px;
}
.fill-solution strong { color:var(--success); }

.match-board { display:grid; gap:14px; }
.match-rows { display:grid; gap:9px; }
.match-row {
  display:grid; grid-template-columns:minmax(180px,.9fr) minmax(220px,1.1fr); gap:9px;
  align-items:stretch;
}
.match-left {
  display:flex; align-items:center; padding:11px 12px; border:1px solid var(--border);
  border-radius:9px; color:var(--text); background:var(--surface2); font-size:12px; line-height:1.45;
}
.match-target {
  display:flex; flex-direction:column; justify-content:center; align-items:flex-start; gap:4px;
  min-height:48px; padding:10px 12px; border:1.5px dashed var(--border); border-radius:9px;
  color:var(--muted); background:var(--bg); font:500 12px var(--font); text-align:left; cursor:pointer;
}
.match-target:hover:not(:disabled) { border-color:var(--accent2); color:var(--text); }
.match-target small { color:var(--success); font-size:10px; }
.match-assigned .match-target { border-style:solid; border-color:rgba(98,172,162,.45); color:var(--accent-hover); background:var(--accent-soft); }
.match-correct .match-target { border-style:solid; border-color:var(--success); color:var(--success); background:var(--success-bg); }
.match-wrong .match-target { border-style:solid; border-color:var(--danger); color:var(--danger); background:var(--danger-bg); }
.match-bank {
  display:flex; flex-wrap:wrap; gap:8px; padding:12px; border:1px solid var(--border);
  border-radius:10px; background:var(--surface2);
}
.match-option {
  padding:8px 11px; border:1px solid var(--border); border-radius:8px; color:var(--text);
  background:var(--bg); font:500 11px var(--font); cursor:grab; transition:.15s ease;
}
.match-option:hover:not(:disabled), .match-option.picked { border-color:var(--accent2); color:var(--accent2); transform:translateY(-1px); }
.match-option.used { opacity:.48; }
.match-option.picked { opacity:1; box-shadow:var(--focus); }
.match-option:disabled { cursor:default; }

@media (max-width:700px) {
  .goods-matrix { grid-template-columns:1fr; }
  .goods-matrix .goods-matrix-head:first-child { display:none; }
  .match-row { grid-template-columns:1fr; }
  .match-left { min-height:44px; }
  .bwr-table { min-width:620px; }
}

/* ── Lückentexte als Auswahlaufgabe ── */
.fill-choice-grid {
  display:grid;
  gap:8px;
}
.fill-choice-btn {
  min-height:52px;
}

/* ── GSP-Lernmodul ── */
.gsp-page .lesson-section { scroll-margin-top:88px; }
.gsp-hero {
  border-left:4px solid var(--accent);
  background:var(--surface);
}
.gsp-exam-hero {
  border-color:var(--border);
  border-left:4px solid var(--success);
  background:var(--surface);
}
.gsp-study-chat { max-height:820px; }
.gsp-pattern-grid {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:9px;
  margin:1rem 0;
}
.gsp-pattern-grid article {
  display:grid;
  gap:7px;
  padding:12px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface2);
}
.gsp-pattern-grid strong { color:var(--text); font-size:12px; }
.gsp-pattern-grid code {
  overflow-wrap:anywhere;
  color:var(--accent2);
  font:500 11px/1.5 var(--mono);
}
.gsp-state-grid {
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:8px;
  margin:1rem 0;
}
.gsp-state-grid > div {
  min-height:92px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:6px;
  padding:11px 9px;
  border:1px solid rgba(98,172,162,.28);
  border-radius:10px;
  background:var(--accent-soft);
  text-align:center;
}
.gsp-state-grid strong { color:var(--accent2); font:600 11px var(--mono); }
.gsp-state-grid span { color:var(--muted); font-size:10px; line-height:1.4; }
.gsp-exam-steps {
  display:grid;
  gap:8px;
}
.gsp-exam-steps article {
  display:grid;
  grid-template-columns:34px 1fr;
  gap:11px;
  align-items:start;
  padding:11px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface2);
}
.gsp-exam-steps article > span {
  display:grid;
  place-items:center;
  width:30px;
  height:30px;
  border-radius:9px;
  color:var(--accent-contrast);
  background:var(--accent);
  font:600 11px var(--mono);
}
.gsp-exam-steps strong { color:var(--text); font-size:13px; }
.gsp-exam-steps p { margin-top:3px; color:var(--muted); font-size:11px; line-height:1.5; }
.gsp-bit-table { min-width:0; table-layout:fixed; }
.gsp-bit-table th:nth-child(1) { width:31%; }
.gsp-bit-table th:nth-child(2) { width:24%; }
.gsp-bit-table th:nth-child(3) { width:20%; }
.gsp-bit-table th:nth-child(4) { width:25%; }
.gsp-bit-table th,
.gsp-bit-table td { overflow-wrap:anywhere; }
.gsp-state-table { min-width:760px; }
.gsp-practice-task {
  margin-top:10px;
  padding:14px;
  border:1px solid var(--border);
  border-radius:11px;
  background:var(--surface2);
}
.gsp-practice-task h4 { margin-bottom:5px; color:var(--text); font-size:13px; }
.gsp-practice-task > p,
.gsp-practice-task details > p { color:var(--muted); font-size:12px; line-height:1.6; }

@media (max-width:760px) {
  .gsp-study-chat { max-height:720px; }
  .gsp-state-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .gsp-pattern-grid { grid-template-columns:1fr; }
  .gsp-state-table { min-width:690px; }
}

/* ── DBII-Lernmodul ── */
.dbii-page .lesson-section { scroll-margin-top:88px; }
.dbii-hero {
  border-color:var(--border);
  border-left:4px solid var(--accent2);
  background:var(--surface);
}
.dbii-exam-page .dbii-hero {
  border-color:var(--border);
  border-left:4px solid var(--danger);
  background:var(--surface);
}
.dbii-study-chat { max-height:850px; }
.dbii-status { display:block; margin-top:.25rem; color:var(--accent2); }
.dbii-focus { margin-bottom:1rem; }
.dbii-focus .priority-card p { margin:0; color:var(--muted); font-size:12px; line-height:1.55; }
.dbii-table { min-width:620px; }
.dbii-code { max-height:390px; overflow:auto; }

@media (max-width:760px) {
  .dbii-study-chat { max-height:720px; }
  .dbii-table { min-width:570px; }
}

/* ── Prüfungsnavigatoren und Lernroute ── */
.study-route {
  display:grid;
  grid-template-columns:minmax(220px,.75fr) minmax(320px,1.25fr);
  gap:18px;
  align-items:start;
  margin:0 0 22px;
  padding:18px 0 20px;
  border:0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  border-radius:0;
  background:transparent;
  box-shadow:none;
}
.study-route-copy h3 { margin:5px 0 7px; color:var(--text); font-size:19px; }
.study-route-copy p { color:var(--muted); font-size:12px; line-height:1.6; }
.study-route-steps { display:grid; gap:8px; margin:0; padding:0; list-style:none; }
.study-route-steps li {
  display:grid;
  grid-template-columns:34px 1fr;
  gap:10px;
  align-items:center;
  padding:10px;
  border:1px solid var(--border);
  border-radius:6px;
  background:var(--surface);
}
.study-route-steps li > span {
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  border-radius:5px;
  color:var(--accent-contrast);
  background:var(--accent);
  font:600 12px var(--mono);
}
.study-route-steps strong,
.study-route-steps small { display:block; }
.study-route-steps strong { color:var(--text); font-size:12px; }
.study-route-steps small { margin-top:2px; color:var(--muted); font-size:10px; line-height:1.45; }
.recommended-group {
  border-color:rgba(98,172,162,.5) !important;
  box-shadow:none;
}
.group-badge,
.bc-mode {
  justify-self:start;
  display:inline-flex;
  width:max-content;
  padding:4px 8px;
  border-radius:4px;
  color:var(--accent2);
  background:var(--accent-soft);
  font:600 9px var(--mono);
  letter-spacing:.04em;
  text-transform:uppercase;
}
.group-progress { display:block; margin-top:7px; color:var(--success); font-size:10px; }
.group-progress-empty { color:var(--muted); }
.block-card .bc-mode { position:static; margin:8px 0 0; }

.exam-mode-note {
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px 18px;
  max-width:720px;
  margin:14px auto 18px;
  padding:13px 15px;
  border:1px solid var(--border);
  border-radius:6px;
  background:var(--surface);
}
.exam-mode-note strong { color:var(--text); font-size:11px; }
.exam-mode-note span { margin-left:5px; color:var(--muted); font-size:10px; }
.pill-timer { color:var(--accent2); background:var(--accent-soft); font-variant-numeric:tabular-nums; }
.pill-timer.urgent { color:var(--danger); background:var(--danger-bg); }

/* Klausuransichten: derselbe Aufbau wie in den 14 eingebetteten Moodle-Quizzen. */
.moodle-simulation { width:100%; min-width:0; }
.moodle-simulation-toolbar { margin-bottom:14px; }
.moodle-simulation-toolbar .quiz-pills { margin:0; }
.moodle-simulation .its-quiz-identity {
  margin:0 0 18px;
  padding:18px 20px;
  border:1px solid var(--border);
  border-left:4px solid var(--accent);
  border-radius:var(--radius);
  background:var(--surface);
}
.moodle-simulation .its-quiz-identity h1 {
  margin:4px 0 2px;
  color:var(--text);
  font:600 1.25rem/1.4 var(--font);
}
.moodle-simulation .its-quiz-identity p {
  color:var(--muted);
  font-size:.88rem;
  line-height:1.55;
}
.moodle-simulation .its-quiz-number {
  color:var(--accent);
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.moodle-simulation .its-progress {
  display:flex;
  justify-content:space-between;
  gap:12px;
  margin:0 0 10px;
  color:var(--muted);
  font-size:.9rem;
}
.moodle-simulation .its-progress-track {
  height:6px;
  margin-bottom:22px;
  overflow:hidden;
  border-radius:99px;
  background:var(--border);
}
.moodle-simulation .its-progress-bar {
  height:100%;
  border-radius:99px;
  background:var(--accent);
  transition:width .2s;
}
.moodle-simulation .its-native-card {
  margin:0;
  padding:24px;
  overflow-x:auto;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.moodle-simulation .moodle-question-meta {
  display:flex;
  flex-wrap:wrap;
  gap:7px;
  margin-bottom:12px;
}
.moodle-simulation .moodle-question-meta span {
  display:inline-flex;
  padding:3px 9px;
  border:0;
  border-radius:3px;
  color:var(--accent2);
  background:var(--surface2);
  font-size:.72rem;
  font-weight:600;
}
.moodle-simulation .pysell-question-title {
  margin:0 0 18px;
  color:var(--text);
  font:600 1.2rem/1.5 var(--font);
}
.moodle-simulation .its-selection-hint {
  margin:14px 0 4px;
  padding:10px 13px;
  border-left:4px solid var(--accent);
  border-radius:8px;
  color:var(--accent-hover);
  background:var(--accent-soft);
  font-size:.9rem;
  font-weight:700;
}
.moodle-simulation .its-choices {
  display:grid;
  gap:9px;
  width:100%;
  margin:12px 0 0;
}
.moodle-simulation .its-choice {
  display:grid;
  grid-template-columns:42px minmax(0,1fr);
  align-items:center;
  width:100%;
  min-width:0;
  padding:13px 14px;
  border:1px solid var(--border);
  border-radius:6px;
  color:var(--text);
  background:var(--surface);
  font:400 .95rem/1.5 var(--font);
  text-align:left;
  cursor:pointer;
  transition:border-color .15s, background .15s, box-shadow .15s;
}
.moodle-simulation .its-choice:hover:not(:disabled) {
  border-color:var(--accent);
  background:var(--surface2);
}
.moodle-simulation .its-choice:focus-visible {
  outline:3px solid rgba(98,172,162,.24);
  outline-offset:2px;
}
.moodle-simulation .its-choice:disabled { opacity:1; cursor:default; }
.moodle-simulation .its-choice.its-selected {
  border-color:var(--accent);
  background:var(--surface2);
  box-shadow:none;
}
.moodle-simulation .its-choice.its-correct {
  border-color:var(--success);
  color:var(--success);
  background:var(--success-bg);
}
.moodle-simulation .its-choice.its-wrong {
  border-color:var(--danger);
  color:var(--danger);
  background:var(--danger-bg);
}
.moodle-simulation .its-choice-control {
  display:grid;
  place-items:center;
  width:22px;
  height:22px;
  border:2px solid var(--border);
  color:var(--accent-contrast);
  background:var(--surface);
  font-size:.75rem;
  font-weight:700;
}
.moodle-simulation .its-choice-control.radio { border-radius:50%; }
.moodle-simulation .its-choice-control.checkbox { border-radius:5px; }
.moodle-simulation .its-selected .its-choice-control {
  border-color:var(--accent);
  background:var(--accent);
}
.moodle-simulation .its-correct .its-choice-control {
  border-color:var(--success);
  background:var(--success);
}
.moodle-simulation .its-wrong .its-choice-control {
  border-color:var(--danger);
  background:var(--danger);
}
.moodle-simulation .its-choice-label { min-width:0; overflow-wrap:anywhere; }
.moodle-simulation .its-answer-status {
  display:block;
  margin-top:5px;
  font-size:.78rem;
  font-weight:700;
}
.moodle-simulation .its-actions {
  display:flex;
  justify-content:flex-end;
  flex-wrap:wrap;
  gap:10px;
  margin:18px 0;
}
.moodle-simulation .its-btn {
  min-height:44px;
  padding:11px 18px;
  border:1px solid var(--accent);
  border-radius:6px;
  color:var(--accent-contrast);
  background:var(--accent);
  font:600 .95rem/1.4 var(--font);
  cursor:pointer;
}
.moodle-simulation .its-btn:hover { background:var(--accent-hover); }
.moodle-simulation .its-btn:focus-visible { outline:3px solid rgba(98,172,162,.24); outline-offset:3px; }
.moodle-simulation .its-btn-secondary {
  margin-right:auto;
  border-color:var(--border);
  color:var(--text);
  background:var(--surface);
}
.moodle-simulation .its-btn-secondary:hover { background:var(--surface2); }
.moodle-simulation .its-answer-notice {
  margin:-8px 0 18px;
  padding:10px 13px;
  border:1px solid var(--warning);
  border-radius:9px;
  color:var(--warning);
  background:var(--warning-bg);
  font-weight:600;
}
.moodle-simulation .its-feedback {
  margin-top:14px;
  padding:16px 18px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface2);
}
.moodle-simulation .its-feedback-correct {
  border-left:3px solid var(--success);
  border-color:var(--border);
  color:var(--text);
  background:var(--surface2);
}
.moodle-simulation .its-feedback-wrong {
  border-left:3px solid var(--danger);
  border-color:var(--border);
  color:var(--text);
  background:var(--surface2);
}
.moodle-simulation .its-feedback-partial {
  border-left:3px solid var(--warning);
  border-color:var(--border);
  color:var(--text);
  background:var(--surface2);
}
.moodle-simulation .its-solution-details { margin-top:12px; color:var(--text); }
.moodle-simulation .its-solution-details > summary { padding:5px 0; font-weight:600; cursor:pointer; }
.moodle-simulation .its-solution-details p { margin-top:8px; line-height:1.65; }
.moodle-simulation .its-explanation {
  margin-top:16px;
  padding:18px;
  border-radius:6px;
  color:var(--text);
  background:var(--accent-soft);
  text-align:left;
  line-height:1.75;
}
.moodle-simulation .its-explanation h3 { margin:0 0 8px; color:var(--accent-hover); font-size:1.05rem; }
.moodle-simulation .its-explanation p { margin:0; white-space:normal; }
.moodle-simulation .its-explanation-source {
  margin-top:12px !important;
  padding-top:10px;
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:.8rem;
}
.moodle-simulation .its-summary {
  padding:30px 20px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
  text-align:center;
}
.moodle-simulation .its-summary h2 { margin:8px 0; font-size:1.4rem; }
.moodle-simulation .its-summary p { margin:6px 0; color:var(--muted); }
.moodle-simulation .its-result-score { display:block; color:var(--accent); font-size:2.8rem; font-weight:600; }
.moodle-simulation .its-summary .its-btn { margin:12px 5px 0; }

.moodle-simulation .question-type-note {
  margin:14px 0 8px;
  padding:10px 13px;
  border-left:4px solid var(--accent);
  border-radius:8px;
  color:var(--accent-hover);
  background:var(--accent-soft);
  font-size:.9rem;
  font-weight:700;
}
.moodle-simulation .fill-choice-grid { margin-top:12px; }
.moodle-simulation .fill-choice-btn {
  margin-bottom:9px;
  padding:13px 14px;
  border-radius:10px;
  background:var(--surface);
  font-size:.95rem;
}
.moodle-simulation .cloze-text,
.moodle-simulation .match-row,
.moodle-simulation .match-option { font-size:.95rem; }
.moodle-simulation .its-solution-details ol,
.moodle-simulation .its-solution-details ul { margin:8px 0 0; padding-left:22px; line-height:1.65; }

@media (max-width:520px) {
  .moodle-simulation .its-quiz-identity,
  .moodle-simulation .its-native-card { padding:16px 12px; }
  .moodle-simulation .its-progress { align-items:flex-start; flex-direction:column; gap:3px; }
  .moodle-simulation .its-choice { grid-template-columns:34px minmax(0,1fr); padding:11px 9px; }
  .moodle-simulation .its-actions .its-btn { flex:1 1 auto; }
}

/* Mehrfach-Lückentexte im offiziellen E-Klausur-Format */
.cloze-text {
  padding:16px;
  border:1px solid var(--border);
  border-radius:12px;
  color:var(--text);
  background:var(--surface2);
  font-size:13px;
  line-height:2.55;
}
.cloze-slot { display:inline-flex; flex-direction:column; vertical-align:middle; margin:0 4px; line-height:1.2; }
.cloze-slot select {
  min-width:150px;
  padding:8px 28px 8px 9px;
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--text);
  background:var(--bg);
  font:500 11px var(--font);
}
.cloze-slot small { margin-top:3px; color:var(--success); font-size:9px; }
.cloze-correct select { border-color:var(--success); color:var(--success); background:var(--success-bg); }
.cloze-wrong select { border-color:var(--danger); color:var(--danger); background:var(--danger-bg); }
.feedback.partial { border-color:var(--warning); color:var(--warning); background:var(--warning-bg); }
.bwr-exam-hero { border-color:var(--border); border-left:4px solid var(--accent); background:var(--surface); }

@media (max-width:760px) {
  .study-route { grid-template-columns:1fr; padding:15px; }
  .exam-mode-note { align-items:flex-start; flex-direction:column; }
  .exam-mode-note span { display:block; margin:2px 0 0; }
  .cloze-text { padding:12px; line-height:2.9; }
  .cloze-slot select { min-width:132px; max-width:75vw; }
}
/* Durchgehende ITS-Lernseite: Tabellen/Formeln dürfen innerhalb der Seite scrollen. */
.formula-scroll-page .fs-section { scroll-margin-top: 24px; }
.formula-scroll-page .fs-equation { overflow-x: auto; max-width: 100%; line-height: 1.8; }
.formula-scroll-page .fs-equation .katex-display { margin: .35em 0; }
.formula-scroll-page .fs-table-wrap { overflow-x: auto; }
.formula-scroll-page .fs-section h4 { margin-top: 28px; }
.formula-scroll-page ol.fs-list li { margin-bottom: 9px; line-height: 1.75; }

/* BWR: bright consolidated learning script, isolated from other modules. */
.bwr-expanded {color:var(--text);background:transparent;line-height:1.75;overflow-wrap:anywhere}
.bwr-expanded h2 {margin:2rem 0 1rem;color:var(--text);font-size:1.55rem}
.bwr-expanded h3 {margin:1.7rem 0 .8rem;color:var(--accent2)}
.bwr-expanded h4 {margin:1.1rem 0 .5rem;color:var(--accent2);font-size:1.02rem}
.bwr-expanded p {margin:.75rem 0}
.bwr-total-chapter {padding-top:1rem;border-top:2px solid var(--border);margin-top:2rem;scroll-margin-top:1rem}
.bwr-bridge {padding:1rem 1.2rem;background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:6px}
.bwr-total-nav {display:flex;flex-wrap:wrap;gap:.55rem;margin:1.2rem 0}
.bwr-total-nav button {text-align:left;background:var(--surface);color:var(--accent-hover);border:1px solid var(--border);border-radius:6px;padding:.65rem .9rem;cursor:pointer;font:inherit}
.bwr-total-nav button:hover {border-color:var(--accent);background:var(--accent-soft)}
.bwr-source-script {margin:1.4rem 0}
.source-note {font-size:.88rem;color:var(--muted)}
.source-table {width:100%;min-width:0;max-width:100%;box-sizing:border-box;margin:1.15rem 0;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius);padding:1.15rem;box-shadow:none}
.source-table pre {max-width:100%;font-family:var(--font);font-size:1rem;line-height:1.7;color:var(--text);margin:0;white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal}
.source-table-title {margin:0 0 .8rem!important;color:var(--text)!important;font:700 1.05rem/1.45 var(--font)!important;letter-spacing:0}
.source-table-intro {margin:0 0 .8rem!important;color:var(--muted)}
.source-table-scroll {width:100%;max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;border:1px solid var(--border);border-radius:var(--radius)}
.source-data-table {width:100%;min-width:620px;border-collapse:collapse;background:var(--surface);font:400 .96rem/1.55 var(--font);color:var(--text)}
.source-data-table th,.source-data-table td {padding:.85rem .95rem;border-right:1px solid var(--border);border-bottom:1px solid var(--border);text-align:left;vertical-align:top;white-space:normal;overflow-wrap:normal;word-break:normal;hyphens:auto}
.source-data-table th:last-child,.source-data-table td:last-child {border-right:0}
.source-data-table tr:last-child td {border-bottom:0}
.source-data-table th {background:var(--surface2);color:var(--accent2);font-weight:700}
.source-data-table td:first-child {color:var(--text);font-weight:600}
.source-data-table tbody tr:nth-child(even) {background:rgba(255,255,255,.018)}
.source-original {white-space:pre-wrap;font:inherit;line-height:1.7;background:var(--surface2);padding:1rem;border-radius:6px}
.bwr-expanded details {margin:1rem 0;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:1rem}
.bwr-expanded summary {cursor:pointer;font-weight:600;color:var(--accent2)}
.bwr-expanded details[open]>summary {margin-bottom:1rem}
.bwr-html-source {width:100%;min-width:0;max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain}
.bwr-html-source table {display:table;width:max-content;min-width:100%;max-width:none;border-collapse:collapse;margin:1rem 0;background:var(--surface);font-size:.92rem}
.bwr-html-source td,.bwr-html-source th {padding:.7rem;border:1px solid var(--border);text-align:left;vertical-align:top;min-width:110px}
.bwr-html-source th {background:var(--surface2)}
.bwr-html-source .cue,.bwr-html-source .key,.bwr-html-source .rule,.bwr-html-source .f,.bwr-html-source .eq {padding:1rem;background:var(--accent-soft);border:1px solid var(--border);border-radius:6px;margin:1rem 0}
.bwr-html-source .warn,.bwr-html-source .bad {padding:1rem;background:var(--warning-bg);border:1px solid var(--warning-border);border-radius:6px;margin:1rem 0;color:var(--warning-text)}
.bwr-expanded .lesson-warning {color:var(--warning-text);background:var(--warning-bg);border:1px solid var(--warning-border);padding:1rem;border-radius:6px;line-height:1.7}
.bwr-expanded .lesson-warning h3 {font-size:1rem;margin:0 0 .5rem}
.bwr-expanded a {color:var(--accent-hover);text-decoration:underline}
@media(max-width:600px){.bwr-total-nav {display:grid}.bwr-expanded h2 {font-size:1.3rem}.bwr-expanded details {padding:.8rem}.source-table {padding:.8rem}.source-data-table {min-width:560px;font-size:.9rem}.source-data-table th,.source-data-table td {padding:.7rem .75rem}.bwr-expanded {font-size:15px}}
.bwr-expanded {display:block;width:100%;min-width:0;max-width:100%;overflow-x:hidden}
.bwr-expanded>* {min-width:0;max-width:100%}
.bwr-expanded :where(section,article,div,details,header,main,nav) {min-width:0;box-sizing:border-box}
.bwr-expanded :where(img,svg,canvas,video) {max-width:100%;height:auto}
.bwr-expanded :where(pre,.source-original) {max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere}
.bwr-expanded .lesson-page {width:100%;max-width:100%;margin-inline:0}
.bwr-expanded .lesson-section {width:100%;max-width:100%;overflow:hidden}
.bwr-expanded .lesson-section>.bwr-html-source {overflow-x:auto}
.bwr-expanded .lesson-hero {margin-bottom:1.4rem}
.bwr-total-nav button {white-space:normal;min-width:0}
.bwr-source-script,.bwr-total-chapter,.bwr-html-source {min-width:0;max-width:100%}
.bwr-probe-lock {
  border:1px solid var(--border);
  border-left:4px solid var(--accent);
  background:var(--surface);
}
.bwr-probe-code-row {
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
  align-items:center;
  margin-top:1rem;
}
.bwr-probe-code-input {
  flex:1 1 220px;
  min-height:44px;
  border:1px solid var(--border);
  border-radius:6px;
  padding:.75rem 1rem;
  font:600 1rem/1.2 var(--font);
  color:var(--text);
  background:var(--surface);
  box-shadow:none;
}
.bwr-probe-code-input:focus {
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-color:var(--accent);
}
.bwr-probe-error {
  min-height:1.4rem;
  margin:.75rem 0 0;
  color:var(--danger);
  font-weight:700;
}

/* Layoutkorrekturen: lange Fachbegriffe dürfen keine Seite verbreitern. */
.quiz-header, .module-copy, .block-card, .q-text, .feedback,
.lesson-hero, .lesson-section, .lesson-section-heading, .lesson-card, .chat-note,
.match-left, .match-target, .match-option, .cloze-text {
  overflow-wrap:anywhere;
}
.lesson-hero > div, .lesson-section-heading > div,
.option-btn > span:last-child, .match-row > *, .cloze-slot {
  min-width:0;
}
.option-btn > span:last-child { overflow-wrap:anywhere; line-height:1.5; }
.option-key, .cb { flex-shrink:0; }
.lesson-page :not(pre) > code { overflow-wrap:anywhere; white-space:normal; }
.progress-row { flex-wrap:wrap; align-items:center; gap:8px; }
.progress-row .q-cat { max-width:100%; overflow-wrap:anywhere; }
/* Badges brauchen eigenen Platz, auch bei mehrzeiligen Kartentiteln. */
.block-card .bc-badge { position:static; display:block; width:fit-content; max-width:100%; margin:0 0 8px auto; }
.cloze-slot { max-width:100%; margin:4px 0; }
.cloze-slot select { min-width:0; width:100%; max-width:100%; }
.cloze-slot small { overflow-wrap:anywhere; line-height:1.5; }
.code-block { color:var(--accent2); line-height:1.6; }
.q-text p + p, .feedback p + p { margin-top:.7em; }
.q-text ul, .q-text ol, .feedback ul, .feedback ol { padding-left:1.4em; }
@media (max-width:560px) {
  .lesson-hero { flex-wrap:wrap; }
  .lesson-section-heading > div { flex:1; }
}
.moodle-simulation .its-feedback { overflow-wrap:anywhere; }

.locked-quiz-launch .lesson-hero {
  border-color:var(--border);
  border-left:4px solid var(--accent);
  background:var(--surface);
}

.locked-quiz-status {
  display:inline-flex;
  margin:8px 0 !important;
  padding:5px 10px;
  border-radius:4px;
  color:var(--danger) !important;
  background:var(--danger-bg);
  font-weight:700;
}

.locked-quiz-panel {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.75rem;
  border:1px solid var(--border);
  background:var(--surface);
}

.locked-quiz-input {
  flex:1 1 220px;
  min-height:44px;
  border:1px solid var(--border);
  border-radius:6px;
  padding:.75rem 1rem;
  font:600 1rem/1.2 var(--font);
  color:var(--text);
  background:var(--surface);
  box-shadow:none;
}

.locked-quiz-input:focus {
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-color:var(--accent);
}

.locked-quiz-error {
  flex-basis:100%;
  min-height:1.4rem;
  margin:0;
  color:var(--danger);
  font-weight:700;
}

@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after {
    scroll-behavior:auto !important;
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
  }
}

/* BWR Menti: klare Trennung der Originalfragen und ausführliche Antwortanalyse. */
.bwr-menti-facts {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin:18px 0;
}
.bwr-menti-facts>div {
  padding:18px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface2);
}
.bwr-menti-facts strong,.bwr-menti-facts span {display:block}
.bwr-menti-facts strong {margin-bottom:4px;color:var(--accent2);font-size:1.35rem}
.bwr-menti-how {
  margin:18px 0 22px;
  padding:20px;
  border:1px solid var(--border);
  border-left:4px solid var(--accent);
  border-radius:var(--radius);
  background:var(--surface);
}
.bwr-menti-how h3 {margin-top:0}
.bwr-menti-how ul {margin:12px 0;padding-left:22px}
.feedback-result {margin-bottom:12px;font-size:1.05rem;font-weight:700}
.menti-original-label {
  display:inline-flex;
  max-width:100%;
  margin:0 0 12px;
  padding:5px 9px;
  border:1px solid var(--border);
  border-radius:4px;
  color:var(--accent2);
  background:var(--accent-soft);
  font-size:.76rem;
  font-weight:700;
  line-height:1.35;
}
.menti-feedback-panel {display:grid;gap:12px}
.menti-solution,.menti-reason,.menti-option-analysis {
  padding:14px 16px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--surface);
}
.menti-solution h3,.menti-reason h3 {margin:0 0 7px;font-size:1rem}
.menti-reason p,.menti-answer-list p {margin:0}
.menti-option-analysis summary {cursor:pointer;font-weight:700}
.menti-answer-list {display:grid;gap:8px;margin:12px 0 0;padding:0;list-style:none}
.menti-answer-list li {
  display:grid;
  grid-template-columns:26px minmax(0,1fr);
  gap:9px;
  padding:10px 12px;
  border-radius:8px;
}
.menti-answer-correct {background:var(--success-bg)}
.menti-answer-wrong {background:var(--danger-bg)}
.menti-answer-mark {font-weight:800}
.menti-answer-correct .menti-answer-mark {color:var(--success)}
.menti-answer-wrong .menti-answer-mark {color:var(--danger)}
.menti-answer-list strong {display:block;margin-bottom:3px;overflow-wrap:anywhere}
.feedback-coach .menti-option-analysis {
  margin-top:0;
  padding:10px 0 0;
  border:0;
  border-top:1px solid var(--border);
  border-radius:0;
  background:transparent;
}
@media(max-width:680px){.bwr-menti-facts{grid-template-columns:1fr}}