/* Flashcard Styles */
.flashcard-app {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.flashcard-header {
  margin-bottom: 2rem;
}

.flashcard-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--ivory-muted);
}

.flashcard-stats {
  display: flex;
  gap: 1rem;
}

.stat-correct {
  color: var(--emerald);
}

.stat-incorrect {
  color: var(--coral);
}

/* Card */
.flashcard-container {
  perspective: 1000px;
  margin-bottom: 2rem;
}

.flashcard {
  width: 100%;
  min-height: 300px;
  cursor: pointer;
  outline: none;
}

.flashcard:focus {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
  border-radius: 12px;
}

.flashcard-inner {
  position: relative;
  width: 100%;
  min-height: 300px;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
}

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

.flashcard-front,
.flashcard-back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 300px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-sizing: border-box;
}

.flashcard-front {
  background: var(--ink-light);
  border: 1px solid var(--ink-border);
}

.flashcard-back {
  background: var(--ink-dark);
  border: 1px solid var(--primary);
  transform: rotateY(180deg);
}

.flashcard-content {
  font-size: 1.2rem;
  line-height: 1.6;
  text-align: center;
  color: var(--ivory);
}

/* Actions */
.flashcard-actions {
  text-align: center;
}

.flashcard-btn {
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-family: var(--font-body);
  background: var(--primary);
  color: var(--ink-dark);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.1s;
}

.flashcard-btn:hover {
  background: var(--primary-dark);
}

.flashcard-btn:active {
  transform: scale(0.98);
}

.flashcard-rating {
  margin-top: 1rem;
}

.flashcard-rating p {
  margin-bottom: 1rem;
  color: var(--ivory-muted);
}

.rating-buttons {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.rating-btn {
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-family: var(--font-body);
  border: 1px solid var(--ink-border);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s;
}

.rating-again {
  background: var(--coral);
  color: white;
  border-color: var(--coral);
}

.rating-again:hover {
  background: var(--coral);
}

.rating-hard {
  background: var(--ink-light);
  color: var(--ivory);
}

.rating-hard:hover {
  background: var(--ink-border);
}

.rating-good {
  background: var(--primary);
  color: var(--ink-dark);
  border-color: var(--primary);
}

.rating-good:hover {
  background: var(--primary-dark);
}

.rating-easy {
  background: var(--emerald);
  color: white;
  border-color: var(--emerald);
}

.rating-easy:hover {
  background: var(--emerald);
}

/* Complete screen */
.flashcard-complete {
  text-align: center;
  padding: 3rem 1rem;
}

.flashcard-complete h2 {
  color: var(--ivory);
  margin-bottom: 1.5rem;
}

.complete-stats {
  margin-bottom: 2rem;
  color: var(--ivory-muted);
}

.complete-stats p {
  margin: 0.5rem 0;
}

.complete-stats strong {
  color: var(--ivory);
}

/* Keyboard hints */
.keyboard-hints {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: var(--ivory-muted);
}

.keyboard-hints kbd {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  background: var(--ink-light);
  border: 1px solid var(--ink-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  margin: 0 0.2rem;
}

/* Responsive */
@media (max-width: 640px) {
  .flashcard {
    min-height: 250px;
  }

  .flashcard-front,
  .flashcard-back {
    min-height: 250px;
    padding: 1.5rem;
  }

  .flashcard-content {
    font-size: 1.1rem;
  }

  .rating-buttons {
    flex-direction: column;
  }

  .rating-btn {
    width: 100%;
  }
}