/* ============================================================
   Style_Vokabeltrainer.css — Interaktiver Vokabeltrainer
   ============================================================
   WICHTIG: Dieser Trainer nutzt eigene lokale CSS-Variablen
   (--blue, --gold, --green usw.) zusätzlich zu den globalen
   Variablen aus Style.css (--primary, --accent, --secondary).
   Sie zeigen auf dieselben Farben.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

/* Trainer-spezifische Farbvariablen (zusätzlich zu Style.css) */
:root {
  --blue:    #0A3D62;   /* = var(--primary) */
  --blue-md: #1a5c8f;
  --blue-lt: #d0e8f7;
  --gold:    #F4C542;   /* = var(--accent) */
  --gold-dk: #c9a030;
  --green:   #2E5E2E;   /* = var(--secondary) */
  --green-lt:#e8f4e8;
  --bg:      #F8F5F0;   /* = var(--bg-light) */
  --gray:    #E6E6E6;   /* = var(--neutral) */
  --text:    #1a1a1a;
  --muted:   #5a5a5a;
  --white:   #ffffff;
  --radius:  12px;
  --shadow:  0 4px 24px rgba(10,61,98,0.10);
}

/* Body-Font (Style.css übernimmt background + min-height + flex) */
body {
  font-family: 'Montserrat', sans-serif;
  color: var(--text);
}

/* ── Main-Bereich ──────────────────────────────────────────── */
/* margin-top: Abstand zum fixierten Header (Style.css: position: fixed) */
/* max-width + auto: zentriert den Trainer-Inhalt */
main {
  max-width: 860px;
  margin: 70px auto 0;      /* 70px Abstand zum Header, dann zentriert */
  padding: 2.5rem 1.5rem 4rem;
}

/* ── Seitentitel ───────────────────────────────────────────── */
.page-title { text-align: center; margin-bottom: 1.75rem; }
.page-title h1 {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.3rem;
}
.category-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: 50px;
  margin-top: 0.4rem;
  letter-spacing: 0.3px;
}
.page-title p {
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* ── Zurück-Button (oben) ──────────────────────────────────────
   Einheitlicher Button-System-Look (outline): 6px-Ecken, Montserrat
   Bold, beim Hover wechselt er auf Dunkelblau mit weißer Schrift.
   So passt er zur "Zurück zur Übersicht"-Schaltfläche der Tabellenseite. */
.trainer-topbar {
  margin-bottom: 1.25rem;
  text-align: center;   /* Zurück-Button zentriert (über "Vokabeltrainer") */
}
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.5rem 1rem;
  border: 2px solid var(--blue);
  border-radius: 6px;
  background: transparent;
  color: var(--blue);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}
.back-btn:hover {
  background: var(--blue);
  color: var(--white);
}

/* ── Lade-/Fehlermeldung ───────────────────────────────────── */
.state-msg {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--muted);
  font-size: 1rem;
}
.state-msg.error { color: #b03030; }

/* ── Lerneinheits-Auswahl ──────────────────────────────────── */
.selector-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.unit-btn {
  padding: 0.55rem 1.2rem;
  border-radius: 50px;
  border: 2px solid var(--blue);
  background: var(--white);
  color: var(--blue);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}
.unit-btn:hover  { background: var(--blue-lt); }
.unit-btn.active { background: var(--blue); color: var(--white); }

/* ── Richtungs-Umschalter ──────────────────────────────────── */
.direction-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.direction-toggle {
  display: flex;
  background: var(--white);
  border: 1.5px solid var(--gray);
  border-radius: 50px;
  overflow: hidden;
  padding: 3px;
  gap: 3px;
}
.dir-btn {
  padding: 0.4rem 1rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  transition: all 0.18s;
}
.dir-btn.active                { background: var(--blue); color: var(--white); }
.dir-btn:hover:not(.active)    { background: var(--blue-lt); color: var(--blue); }

/* ── Modus-Auswahl ─────────────────────────────────────────── */
.mode-row {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.mode-btn {
  padding: 0.45rem 1rem;
  border-radius: 50px;
  border: 1.5px solid var(--gray);
  background: var(--white);
  color: var(--muted);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}
.mode-btn:hover         { border-color: var(--blue); color: var(--blue); }
.mode-btn.active        { background: var(--gold); border-color: var(--gold); color: var(--blue); }

/* ── Fortschrittsbalken ────────────────────────────────────── */
.progress-wrap { margin-bottom: 1.5rem; }
.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-weight: 600;
}
.progress-bar-bg {
  height: 8px;
  background: var(--gray);
  border-radius: 50px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--blue-md));
  border-radius: 50px;
  transition: width 0.4s ease;
}

/* ── Punkte-Badges ─────────────────────────────────────────── */
.score-row {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.score-badge {
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.score-badge.correct   { background: var(--green-lt); color: var(--green); border: 1.5px solid #88c288; }
.score-badge.wrong     { background: #fdecea; color: #b03030; border: 1.5px solid #f0a0a0; }
.score-badge.remaining { background: var(--blue-lt); color: var(--blue); border: 1.5px solid #88b8d8; }

/* ── Karten-Shell (fixe Mindesthöhe verhindert Layout-Sprünge) */
.card-shell { min-height: 220px; margin-bottom: 2rem; }

/* ── 3D-Flip-Karte ─────────────────────────────────────────── */
.card-wrap {
  perspective: 1200px;
  cursor: pointer;
  height: 220px;
}
.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-inner.flipped { transform: rotateY(180deg); }

/* Verhindert Flackern beim Kartenwechsel */
.card-inner.preparing .card-back { visibility: hidden; }

.card-face {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-shadow: var(--shadow);
  text-align: center;
}
.card-front { background: var(--white); border: 2px solid var(--gray); }
.card-back  { background: var(--blue);  border: 2px solid var(--blue); transform: rotateY(180deg); color: var(--white); }

.card-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.6rem;
}
.card-back .card-label { color: rgba(255,255,255,0.55); }

.card-word { font-size: 2rem; font-weight: 700; color: var(--blue); margin-bottom: 0.45rem; line-height: 1.2; }
.card-back .card-word { color: var(--gold); font-size: 1.8rem; }

.card-type {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.7rem;
  border-radius: 50px;
  background: var(--blue-lt);
  color: var(--blue);
}
.card-back .card-type { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.9); }

.card-hint { font-size: 0.8rem; color: var(--muted); margin-top: 0.6rem; }
.card-back .card-hint { color: var(--blue); }

.card-audio-btn {
  margin-top: 0.9rem;
  background: var(--gold);
  color: var(--blue);
  border: none;
  border-radius: 50px;
  padding: 0.38rem 1rem;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.18s;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.card-audio-btn:hover { background: var(--gold-dk); }

/* ── Flip-Hinweis ──────────────────────────────────────────── */
.flip-hint {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.75rem;
  min-height: 1.2rem;
}
.flip-hint.visible { color: var(--blue-md); }

/* ── Feedback-Toast ────────────────────────────────────────── */
.feedback-toast {
  text-align: center;
  min-height: 1.8rem;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.feedback-toast.correct { color: var(--green); }
.feedback-toast.wrong   { color: #c0392b; }

/* ── Bewertungs-Buttons ────────────────────────────────────── */
.answer-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.ans-btn {
  flex: 1;
  min-width: 120px;
  max-width: 200px;
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.ans-btn:disabled                         { cursor: not-allowed; opacity: 0.35; }
.ans-btn.correct-btn                      { background: var(--green); color: var(--white); border-color: var(--green); }
.ans-btn.correct-btn:hover:not(:disabled) { background: #3a7a3a; }
.ans-btn.wrong-btn                        { background: #c0392b; color: var(--white); border-color: #c0392b; }
.ans-btn.wrong-btn:hover:not(:disabled)   { background: #a93226; }
.ans-btn.skip-btn                         { background: var(--white); color: var(--muted); border-color: var(--gray); font-weight: 600; }
.ans-btn.skip-btn:hover:not(:disabled)    { background: var(--bg); }

/* ── Multiple Choice ───────────────────────────────────────── */
.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.quiz-opt {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 2px solid var(--gray);
  background: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  text-align: center;
  color: var(--text);
}
.quiz-opt:hover:not(:disabled)    { border-color: var(--blue); background: var(--blue-lt); color: var(--blue); }
.quiz-opt.selected-correct        { background: var(--green); color: var(--white); border-color: var(--green); }
.quiz-opt.selected-wrong          { background: #c0392b; color: var(--white); border-color: #c0392b; }
.quiz-opt.reveal-correct          { background: var(--green-lt); color: var(--green); border-color: #88c288; }
.quiz-opt:disabled                { cursor: not-allowed; }

/* ── Ergebnis-Bildschirm ───────────────────────────────────── */
.result-screen {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.result-screen h2 { font-size: 1.55rem; font-weight: 700; color: var(--blue); margin-bottom: 0.4rem; }
.result-big       { font-size: 3.2rem; font-weight: 700; color: var(--gold); margin: 0.8rem 0; }
.result-sub       { font-size: 0.92rem; color: var(--muted); margin-bottom: 0.75rem; }
.result-stars     { font-size: 1.9rem; margin-bottom: 0.9rem; }
.result-wrong-count { font-size: 0.85rem; font-weight: 600; margin-bottom: 2rem; color: #b03030; }
.result-btns      { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.restart-btn {
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s;
}
.restart-btn.primary             { background: var(--blue); color: var(--white); }
.restart-btn.primary:hover       { background: var(--blue-md); }
.restart-btn.secondary           { background: var(--white); color: #b03030; border: 2px solid #c0392b; }
.restart-btn.secondary:hover:not(:disabled) { background: #fdecea; }
.restart-btn.secondary:disabled  { opacity: 0.35; cursor: not-allowed; }

/* ── Vokabel-Übersichts-Liste ──────────────────────────────── */
.word-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.6rem;
  margin-top: 1.5rem;
}
/* Karten in der Übersicht: Inhalt zentriert (Wort über Übersetzung).
   flex-direction: column + center → beides mittig untereinander. */
.word-chip {
  background: var(--white);
  border: 1.5px solid var(--gray);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.2rem;
}
.word-chip .bos { font-weight: 700; color: var(--blue); }
.word-chip .de  { color: var(--muted); font-size: 0.8rem; }

/* Wortart-Tag wird nicht mehr verwendet (Geschlecht steht jetzt direkt
   hinter dem bosnischen Wort). Stil bleibt für mögliche spätere Nutzung. */
.word-chip .tag {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  background: var(--blue-lt);
  color: var(--blue);
  white-space: nowrap;
}

/* ── Genus-Zusatz hinter dem bosnischen Wort ────────────────────
   Dezent (grau, etwas kleiner, normale Schriftstärke), damit das
   Wort selbst im Vordergrund bleibt. Auf der blauen Karten-Rückseite
   wird es heller dargestellt, damit es lesbar bleibt. */
.genus {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.85em;
}
.card-back .genus {
  color: rgba(255, 255, 255, 0.6);
}

/* ── Aspekt-Kürzel hinter Verben ────────────────────────────────
   Gleiches dezentes Grau wie das Genus – nur in eckigen Klammern
   (die Klammern stehen im JS). Auf der blauen Karten-Rückseite
   heller, damit es lesbar bleibt. */
.aspekt-tag {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.85em;
  margin-left: 5px;
  white-space: nowrap;
}
.card-back .aspekt-tag {
  color: rgba(255, 255, 255, 0.6);
}

/* ── Kategorie-Navigation (ganz unten) ─────────────────────────
   Linker Button = vorherige Kategorie (outline), rechter Button =
   nächste Kategorie (gefüllt). "margin-left:auto" hält den
   Nächste-Button immer rechts – auch wenn links nichts steht. */
.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 2.5rem;
}
.category-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  border: 2px solid var(--blue);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}
/* Vorherige Kategorie: outline → Hover dunkelblau gefüllt */
.category-btn.prev {
  background: transparent;
  color: var(--blue);
}
.category-btn.prev:hover {
  background: var(--blue);
  color: var(--white);
}
/* Nächste Kategorie: gefüllt, immer rechts */
.category-btn.next {
  background: var(--blue);
  color: var(--white);
  margin-left: auto;
}
.category-btn.next:hover {
  background: var(--blue-md);
  border-color: var(--blue-md);
}
/* Zweizeiliger Text: Richtung (klein) + Kapitelname */
.category-btn-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.category-btn-dir {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.85;
}
.category-btn.prev .category-btn-text { text-align: left; }
.category-btn.next .category-btn-text { text-align: right; }
.category-btn-name {
  font-size: 0.88rem;
  font-weight: 700;
}

/* Hilfklasse zum Ein-/Ausblenden */
.hidden { display: none !important; }


/* ============================================================
   RESPONSIVE DESIGN
   Breakpoints laut Vorgabe: 900px / 768px / 480px
   ============================================================ */

/* ── Tablet ≤ 900px ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .page-title h1 { font-size: 1.6rem; }
  .card-word     { font-size: 1.7rem; }

  /* Kategorie-Navigation: Buttons untereinander, volle Breite */
  .category-nav { flex-direction: column; }
  .category-btn { width: 100%; justify-content: center; }
  .category-btn.next { margin-left: 0; }
  .category-btn.prev .category-btn-text,
  .category-btn.next .category-btn-text { text-align: center; }
}

/* ── Mobil ≤ 768px ──────────────────────────────────────────── */
@media (max-width: 768px) {
  main {
    padding: 1.5rem 1rem 3rem;
  }

  .page-title h1    { font-size: 1.4rem; }
  .card-word        { font-size: 1.5rem; }
  .card-back .card-word { font-size: 1.4rem; }

  /* Multiple Choice: 1 Spalte auf Mobil */
  .quiz-options { grid-template-columns: 1fr; }

  .ans-btn       { min-width: 100px; font-size: 0.82rem; }
  .result-btns   { flex-direction: column; align-items: center; }
}

/* ── Sehr kleine Screens ≤ 480px ────────────────────────────── */
@media (max-width: 480px) {
  main { padding: 1rem 0.75rem 2.5rem; }

  .page-title h1   { font-size: 1.25rem; }
  .category-badge  { font-size: 0.75rem; }

  .dir-btn  { font-size: 0.7rem; padding: 0.35rem 0.6rem; }
  .mode-btn { font-size: 0.72rem; padding: 0.38rem 0.75rem; }

  .card-word          { font-size: 1.3rem; }
  .card-back .card-word { font-size: 1.2rem; }

  .unit-btn { font-size: 0.78rem; padding: 0.45rem 0.9rem; }

  .result-big { font-size: 2.4rem; }
}