/* review.css — Review mode: 3D card flip, progress dots */

#screen-review.screen-active {
  display: flex;
  flex-direction: column;
}

/* === HEADER === */
.review-header {
  display: flex;
  align-items: center;
  padding: var(--space-md);
  gap: var(--space-sm);
}

.review-title {
  font-family: var(--font-pixel);
  font-size: 12px;
  color: var(--accent);
}

.review-progress {
  margin-left: auto;
  font-family: var(--font-pixel);
  font-size: 10px;
  color: var(--text-secondary);
}

/* === FLIP CARD CONTAINER === */
.review-card-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  perspective: 1000px;
}

/* === FLIP CARD === */
.flip-card {
  width: 100%;
  max-width: 380px;
  height: 340px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

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

.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* === FRONT FACE === */
.flip-card-front {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 2px solid rgba(0,0,0,0.06);
}

.flip-sentence {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--space-md);
}

.flip-hint {
  font-family: var(--font-pixel);
  font-size: 8px;
  color: var(--text-muted);
  opacity: 0.5;
  animation: hint-pulse 2s ease-in-out infinite;
}

@keyframes hint-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* === BACK FACE === */
.flip-card-back {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 2px solid rgba(0,0,0,0.06);
  transform: rotateY(180deg);
}

.flip-word {
  font-family: var(--font-pixel);
  font-size: 18px;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.flip-phonetic {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.flip-pos {
  display: inline-block;
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-primary);
  padding: 2px 10px;
  border-radius: 10px;
  margin-bottom: var(--space-md);
}

.flip-definition {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  text-align: center;
}

/* === NAVIGATION === */
.review-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  gap: var(--space-md);
}

.review-dots {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 280px;
}

.review-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.3;
  cursor: pointer;
  transition: all 0.2s ease;
}

.review-dot.active {
  opacity: 1;
  background: var(--accent);
  transform: scale(1.3);
}

.review-dot.reviewed {
  opacity: 0.6;
  background: var(--success);
}

/* === ACTIONS === */
.review-actions {
  padding: var(--space-md);
  display: flex;
  justify-content: center;
}

#btn-review-complete {
  width: auto;
  padding: 12px 28px;
  font-size: 11px;
}

/* === RESPONSIVE === */
[data-device="ipad"] .flip-card {
  max-width: 480px;
  height: 400px;
}
[data-device="ipad"] .flip-sentence {
  font-size: 22px;
}
[data-device="ipad"] .flip-definition {
  font-size: 17px;
}

[data-device="mac"] .flip-card {
  max-width: 520px;
  height: 380px;
}