/* Flashcard */
.flashcard-controls {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.fc-select {
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  background: var(--card);
  cursor: pointer;
}

.flashcard-area {
  display: flex;
  justify-content: center;
  perspective: 1000px;
  margin: 1rem 0;
}

.flashcard {
  width: 100%;
  max-width: 440px;
  min-height: 260px;
  position: relative;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 0.5s;
}

.flashcard.flipped { transform: rotateY(180deg); }

.fc-front, .fc-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.fc-front {
  background: var(--card);
  border: 1px solid var(--border);
}

.fc-back {
  background: var(--card);
  border: 1px solid var(--border);
  transform: rotateY(180deg);
}

.fc-word { font-size: 1.8rem; font-weight: 700; margin-bottom: 0.4rem; }
.fc-pos { font-size: 0.85rem; color: var(--text-light); }
.fc-hint { font-size: 0.8rem; color: var(--text-light); margin-top: 0.75rem; }
.fc-tr { font-size: 1.3rem; font-weight: 600; color: var(--accent); margin-bottom: 0.4rem; }
.fc-example { font-size: 0.85rem; color: var(--text-mid); font-style: italic; line-height: 1.45; }
.fc-level-badge { margin-top: 0.6rem; font-size: 0.8rem; color: var(--text-light); }

.flashcard-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin: 0.75rem 0;
}

.fc-counter { font-size: 0.85rem; color: var(--text-light); font-weight: 500; font-variant-numeric: tabular-nums; }

.flashcard-actions {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

/* Butonlar */
.btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.1s;
  color: var(--text);
}

.btn:hover { background: var(--bg); }

.btn-primary {
  background: var(--text);
  color: var(--card);
  border-color: var(--text);
}
.btn-primary:hover { opacity: 0.85; background: var(--text); }

.btn-success {
  background: var(--green);
  color: white;
  border-color: var(--green);
}
.btn-success:hover { opacity: 0.85; }

.btn-danger {
  background: var(--red);
  color: white;
  border-color: var(--red);
}
.btn-danger:hover { opacity: 0.85; }

.btn-secondary {
  background: var(--bg);
  border-color: var(--border);
  color: var(--text-mid);
}

.btn-lg { padding: 0.65rem 1.75rem; font-size: 0.9rem; }

/* Kartlar: "Bilmiyorum / Biliyorum" butonları (hafif renkli) */
.fc-action.fc-unknown {
  background: var(--red-bg);
  border-color: rgba(220, 38, 38, 0.35);
  color: var(--red);
}
.fc-action.fc-unknown:hover {
  background: #fee2e2; /* Pastel kırmızı */
}

.fc-action.fc-known {
  background: var(--green-bg);
  border-color: rgba(21, 128, 61, 0.35);
  color: var(--green);
}
.fc-action.fc-known:hover {
  background: #dcfce7; /* Pastel yeşil */
}

/* Sinav */
.quiz-setup {
  text-align: center;
  padding: 2rem;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.quiz-setup h2 {
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.quiz-options {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.quiz-options label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-mid);
}

.quiz-options select {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
}

.quiz-question {
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--border);
  text-align: center;
  margin-bottom: 1rem;
}

.quiz-progress-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: width 0.3s;
}

.quiz-prompt {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.quiz-sub { font-size: 0.8rem; color: var(--text-light); margin-bottom: 1.25rem; }

.quiz-choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  max-width: 460px;
  margin: 0 auto;
}

.quiz-choice {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.1s;
  text-align: center;
}

.quiz-choice:hover { background: var(--bg); border-color: var(--border-dark); }
.quiz-choice.correct { background: var(--green-bg); border-color: var(--green); }
.quiz-choice.wrong { background: var(--red-bg); border-color: var(--red); }
.quiz-choice.disabled { pointer-events: none; opacity: 0.6; }

.quiz-score {
  text-align: center;
  padding: 2rem;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.score-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 auto 0.75rem;
}

.score-great { background: var(--green-bg); color: var(--green); }
.score-good { background: var(--blue-bg); color: var(--blue); }
.score-ok { background: var(--accent-bg); color: var(--accent); }
.score-bad { background: var(--red-bg); color: var(--red); }

/* Ilerleme */
.progress-dashboard { display: flex; flex-direction: column; gap: 1rem; }

.progress-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--border);
}

.progress-card h3 {
  margin-bottom: 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.progress-overview {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 1rem;
}

.progress-stats {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.stat-card {
  text-align: center;
  padding: 0.75rem;
  background: var(--bg);
  border-radius: var(--radius);
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 0.75rem; color: var(--text-light); margin-top: 0.1rem; }

@media (max-width: 640px) {
  .quiz-choices { grid-template-columns: 1fr; }
  .flashcard { min-height: 220px; }
  .fc-word { font-size: 1.4rem; }
  .quiz-prompt { font-size: 1.2rem; }
  
  .progress-overview { flex-direction: column; gap: 1.25rem; }
  .progress-stats { grid-template-columns: repeat(2, 1fr); width: 100%; }
}

/* Mobil Genel */
@media (max-width: 480px) {
  .flashcard {
    max-width: 100%;
    min-height: 200px;
  }

  .fc-front, .fc-back {
    padding: 1.25rem;
  }

  .fc-word { font-size: 1.2rem; }
  .fc-tr { font-size: 1.1rem; }
  .fc-pos { font-size: 0.75rem; }
  .fc-hint { font-size: 0.7rem; }
  .fc-example { font-size: 0.75rem; }

  .flashcard-controls {
    gap: 0.4rem;
  }

  .fc-select {
    padding: 0.35rem 0.5rem;
    font-size: 0.75rem;
  }

  .btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
  }

  .quiz-setup {
    padding: 1.25rem;
  }

  .quiz-question {
    padding: 1.25rem;
  }

  .quiz-prompt {
    font-size: 1.1rem;
  }

  .quiz-choice {
    padding: 0.6rem;
    font-size: 0.8rem;
  }

  .score-circle {
    width: 80px;
    height: 80px;
    font-size: 1.3rem;
  }

  .progress-card {
    padding: 1rem;
  }

  .stat-number {
    font-size: 1.25rem;
  }

  .stat-label {
    font-size: 0.65rem;
  }
}

/* Küçük ekranlar için */
@media (max-width: 360px) {
  .fc-front, .fc-back {
    padding: 1rem;
  }

  .fc-word { font-size: 1.1rem; }
  .fc-tr { font-size: 1rem; }

  .flashcard-nav {
    gap: 0.75rem;
  }

  .quiz-choices {
    gap: 0.5rem;
  }
}

/* Yedek Önizleme Modalı */
.backup-preview {
  padding: 0.5rem 0;
}

.preview-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.preview-stat {
  background: var(--bg);
  padding: 0.75rem;
  border-radius: var(--radius);
  text-align: center;
}

.preview-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.preview-value {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.import-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.import-option {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--bg);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
}

.import-option:hover {
  background: var(--border);
}

.import-option input[type="radio"] {
  margin-top: 0.2rem;
  accent-color: var(--accent);
}

.import-option label {
  flex: 1;
  cursor: pointer;
}

.import-option strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.import-option small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.3;
}

.current-stats {
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border-radius: var(--radius);
  font-size: 0.8rem;
  color: var(--text-light);
  text-align: center;
  border: 1px dashed var(--border);
}

.modal-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
  border-radius: 0 0 var(--radius) var(--radius);
}

/* Yedek Bölümü */
.backup-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.backup-info p {
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.backup-stats-mini {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-mid);
}

.backup-stat-item strong {
  color: var(--accent);
}

.backup-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-flex {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
}

.btn-flex svg {
  flex-shrink: 0;
}