/* Word Mastery Styles (단어 마스터리 분석) */

.word-mastery-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0;
}

.word-mastery-number {
  font-size: 4rem;
  font-weight: 900;
  color: var(--accent-primary);
  line-height: 1;
}

.word-mastery-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-align: center;
}

.word-mastery-bars {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.word-mastery-bar-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
}

.word-mastery-tag {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  min-width: 100px;
}

.word-mastery-tag.tag-strong {
  background-color: rgba(52, 211, 153, 0.15);
  color: #10b981;
}

.word-mastery-tag.tag-medium {
  background-color: rgba(251, 191, 36, 0.15);
  color: #f59e0b;
}

.word-mastery-tag.tag-weak {
  background-color: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.word-mastery-count {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 40px;
  text-align: right;
}

.word-mastery-sub {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.word-mastery-badge {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  background-color: var(--accent-primary);
  color: white;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.word-mastery-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.word-mastery-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.5rem;
  background-color: var(--bg-tertiary);
  border-radius: 6px;
  font-size: 0.85rem;
}

.word-mastery-empty {
  color: var(--text-secondary);
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
}

.wm-word {
  font-weight: 700;
  color: var(--text-primary);
  min-width: 60px;
}

.wm-meaning {
  color: var(--text-secondary);
  flex: 1;
}

.wm-acc {
  font-weight: 700;
  color: var(--accent-primary);
  min-width: 40px;
  text-align: right;
}

.word-mastery-footer {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.word-mastery-detail-btn {
  background-color: var(--accent-primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-duration) ease;
}

.word-mastery-detail-btn:hover {
  background-color: var(--accent-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.word-mastery-detail-btn:active {
  transform: scale(0.98);
}

/* Word Mastery Detail Section */
.word-mastery-detail {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.word-mastery-detail-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.word-mastery-detail-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 220px;
  overflow-y: auto;
}

.word-mastery-detail-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem;
  background-color: var(--bg-tertiary);
  border-radius: 6px;
  font-size: 0.85rem;
  align-items: center;
}

.word-mastery-detail-empty {
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.9rem;
}

/* Word mastery lists layout: recent (left) + detail (right) */
.word-mastery-lists {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.word-mastery-recent-wrapper {
  /* 추가 스타일 필요시 */
}

/* Word mastery speak button */
.wm-speak-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background-color: var(--accent-tertiary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  margin-top: 0.1rem;
}

.wm-speak-btn:hover {
  opacity: 0.9;
}

/* Responsive - Word Mastery */
@media (max-width: 1024px) {
  .word-mastery-number {
    font-size: 3rem;
  }
}

@media (max-width: 900px) {
  .word-mastery-lists {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .word-mastery-number {
    font-size: 2.25rem;
  }

  .word-mastery-detail-list {
    max-height: 220px;
  }
}