/* ══════════════════════════════════════════
   Fill in the Blanks — 결과(해설) 화면
   Ethereal Dashboard 디자인
   Scope: #fillBlanksExplainScreen
══════════════════════════════════════════ */

/* ── Variables ── */
#fillBlanksExplainScreen {
  padding: 24px 48px;
  --fb-primary: #9480c5;
  --fb-primary-soft: #f4f2f9;
  --fb-success: #77bf7e;
  --fb-success-soft: #f0f9f1;
  --fb-error: #e57373;
  --fb-error-soft: #fef2f2;
  --fb-warning-soft: #fff8e1;
  --fb-bg: #f1f4f8;
  --fb-text: #2d3436;
  --fb-text-muted: #636e72;
  --fb-shadow: 0 10px 30px rgba(148, 128, 197, 0.08);
  --fb-shadow-subtle: 0 4px 20px rgba(148, 128, 197, 0.06);
}


/* ── Result Container ── */
#fillBlanksExplainScreen .result-container {
  background: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}


/* ── Header & Score ── */
#fillBlanksExplainScreen .result-header {
  text-align: left;
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

#fillBlanksExplainScreen .result-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fb-primary);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

#fillBlanksExplainScreen .result-summary {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
  align-items: stretch;
}

#fillBlanksExplainScreen .result-score-card {
  background: var(--fb-primary);
  color: white;
  padding: 24px;
  border-radius: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 0;
}

#fillBlanksExplainScreen .score-label {
  font-size: 0.9rem;
  opacity: 0.9;
  margin-bottom: 4px;
}

#fillBlanksExplainScreen .score-value {
  font-size: 2.5rem;
  font-weight: 800;
}

#fillBlanksExplainScreen .result-stats {
  flex: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

#fillBlanksExplainScreen .stat-item {
  background: #ffffff;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 16px;
}

#fillBlanksExplainScreen .stat-label {
  font-size: 0.85rem;
  color: var(--fb-text-muted);
  margin-bottom: 4px;
}

#fillBlanksExplainScreen .stat-value {
  font-size: 1.25rem;
  font-weight: 700;
}

#fillBlanksExplainScreen .stat-value.correct  { color: var(--fb-success); }
#fillBlanksExplainScreen .stat-value.incorrect { color: var(--fb-error); }


/* ── Details Container ── */
#fillBlanksExplainScreen .result-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── Section Title ── */
#fillBlanksExplainScreen .result-section {
  padding: 24px;
  background: #ffffff;
  border-radius: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
  margin-bottom: 24px;
}

#fillBlanksExplainScreen .result-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fb-text);
}

#fillBlanksExplainScreen .result-section-title i {
  color: var(--fb-primary);
}


/* ── Passage Panel ── */
#fillBlanksExplainScreen .result-passage {
  background: #ffffff;
  padding: 28px;
  border-radius: 20px;
  font-size: 1.05rem;
  line-height: 2.2;
  color: #34495e;
  margin-bottom: 24px;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.02);
  border: 1px solid rgba(148, 128, 197, 0.05);
}


/* ── Blank (공통) ── */
#fillBlanksExplainScreen .result-blank {
  display: inline-flex;
  align-items: baseline;
  padding: 2px 8px;
  border-radius: 6px;
  margin: 0 2px;
  font-weight: 600;
  transition: all 0.2s ease;
  position: relative;
  white-space: nowrap;
  gap: 2px;
  cursor: pointer;
  line-height: 1;
}

#fillBlanksExplainScreen .result-blank:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

#fillBlanksExplainScreen .result-blank i {
  font-size: 0.8rem;
  margin-right: 4px;
  vertical-align: middle;
}

#fillBlanksExplainScreen .blank-given {
  opacity: 0.6;
  font-size: 16px;
  font-weight: 500;
}

#fillBlanksExplainScreen .blank-user {
  font-family: 'Pretendard', 'Courier New', monospace;
  font-weight: 600;
  font-size: 16px;
  text-decoration: underline;
  text-underline-offset: 4px;
}


/* ── Blank: 정답 ── */
#fillBlanksExplainScreen .result-blank.correct {
  background: var(--fb-success-soft);
  color: var(--fb-success);
  border: none;
}

#fillBlanksExplainScreen .result-blank.correct i { color: var(--fb-success); }
#fillBlanksExplainScreen .result-blank.correct .blank-user { color: #059669; }


/* ── Blank: 오답 ── */
#fillBlanksExplainScreen .result-blank.incorrect {
  background: var(--fb-error-soft);
  color: var(--fb-error);
  border: none;
}

#fillBlanksExplainScreen .result-blank.incorrect i { color: var(--fb-error); }
#fillBlanksExplainScreen .result-blank.incorrect .blank-user { color: #dc2626; text-decoration: none; }


/* ── Explanation Box ── */
#fillBlanksExplainScreen .blank-explanation-box {
  background: #ffffff;
  border-radius: 20px;
  padding: 24px;
  margin: 16px 0 24px;
  box-shadow: var(--fb-shadow-subtle);
  animation: fb-slideIn 0.3s ease-out;
  border: none;
}

@keyframes fb-slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

#fillBlanksExplainScreen .explanation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

#fillBlanksExplainScreen .explanation-word {
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

#fillBlanksExplainScreen .explanation-word strong {
  font-weight: 400;
  color: var(--fb-text-muted);
  font-size: 14px;
}

#fillBlanksExplainScreen .correct-word {
  color: var(--fb-primary);
  font-weight: 700;
  font-size: 18px;
  margin-left: 8px;
}

#fillBlanksExplainScreen .correct-word.incorrect-answer {
  color: var(--fb-error);
}

#fillBlanksExplainScreen .btn-close-explanation {
  background: var(--fb-bg);
  border: none;
  color: var(--fb-text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

#fillBlanksExplainScreen .btn-close-explanation:hover {
  background: #e2e8f0;
}


/* ── Explanation Text ── */
#fillBlanksExplainScreen .explanation-text {
  display: flex;
  gap: 12px;
  font-size: 0.95rem;
  color: #4a4a4a;
  padding: 12px;
  background: var(--fb-primary-soft);
  border-radius: 12px;
  align-items: flex-start;
}

#fillBlanksExplainScreen .explanation-text i {
  color: var(--fb-primary);
  font-size: 20px;
  margin-top: 4px;
  flex-shrink: 0;
}

#fillBlanksExplainScreen .explanation-text p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: #4b5563;
}


/* ── Common Mistakes ── */
#fillBlanksExplainScreen .common-mistakes-section {
  margin-top: 16px;
  background: var(--fb-warning-soft);
  padding: 18px;
  border-radius: 16px;
}

#fillBlanksExplainScreen .common-mistakes-header-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 8px;
}

#fillBlanksExplainScreen .common-mistakes-header {
  color: #856404;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

#fillBlanksExplainScreen .common-mistakes-header i {
  font-size: 18px;
  color: #f59e0b;
}

#fillBlanksExplainScreen .common-mistakes-header strong {
  font-size: 15px;
  font-weight: 600;
  color: #92400e;
}

#fillBlanksExplainScreen .common-mistakes-words {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#fillBlanksExplainScreen .mistake-word {
  background: white;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--fb-error);
  font-weight: 500;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
  display: inline-block;
  transition: all 0.2s ease;
}

#fillBlanksExplainScreen .mistake-word:hover {
  background: #fde68a;
  transform: translateY(-1px);
}

#fillBlanksExplainScreen .common-mistakes-text {
  font-size: 0.85rem;
  color: #666;
  margin: 0;
  line-height: 1.7;
}




/* ── Retry (재풀이) ── */
#fillBlanksExplainScreen .fb-retry-area {
  padding: 20px;
  margin-bottom: 16px;
}

#fillBlanksExplainScreen .fb-retry-first-answer {
  font-size: 0.95rem;
  color: var(--fb-error);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

#fillBlanksExplainScreen .fb-retry-first-answer i {
  font-size: 14px;
}

#fillBlanksExplainScreen .fb-retry-wrong-word {
  font-weight: 600;
  text-decoration: line-through;
  margin-left: 4px;
}

#fillBlanksExplainScreen .fb-retry-prompt {
  font-size: 0.9rem;
  color: var(--fb-text-muted);
  margin-bottom: 12px;
  font-weight: 500;
}

#fillBlanksExplainScreen .fb-retry-input-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

#fillBlanksExplainScreen .fb-retry-prefix {
  font-size: 1.1rem;
  color: var(--fb-text-muted);
  font-weight: 500;
  opacity: 0.7;
}

#fillBlanksExplainScreen .fb-retry-inputs {
  display: inline-flex;
  gap: 3px;
}

#fillBlanksExplainScreen .fb-retry-char {
  width: 28px;
  height: 36px;
  border: 2px solid #d1d5db;
  border-radius: 8px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: 'Pretendard', 'Courier New', monospace;
  color: var(--fb-text);
  background: #fafafa;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

#fillBlanksExplainScreen .fb-retry-char:focus {
  border-color: var(--fb-primary);
  box-shadow: 0 0 0 3px rgba(148, 128, 197, 0.15);
  background: #fff;
}

#fillBlanksExplainScreen .fb-retry-char:disabled {
  background: var(--fb-success-soft);
  border-color: var(--fb-success);
  color: var(--fb-success);
}

#fillBlanksExplainScreen .fb-retry-submit {
  margin-left: 12px;
  padding: 8px 20px;
  border: none;
  border-radius: 10px;
  background: var(--fb-primary);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

#fillBlanksExplainScreen .fb-retry-submit:hover {
  background: #7c68b3;
  transform: translateY(-1px);
}

#fillBlanksExplainScreen .fb-retry-submit:disabled {
  background: var(--fb-success);
  cursor: default;
  transform: none;
}

#fillBlanksExplainScreen .fb-retry-feedback {
  margin-top: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 24px;
}

#fillBlanksExplainScreen .fb-retry-feedback:empty {
  display: none;
}

#fillBlanksExplainScreen .fb-retry-feedback-correct {
  color: var(--fb-success);
}

#fillBlanksExplainScreen .fb-retry-feedback-wrong {
  color: var(--fb-error);
}

#fillBlanksExplainScreen .fb-retry-feedback-warn {
  color: #d97706;
}

#fillBlanksExplainScreen .fb-retry-locked {
  margin-top: 16px;
  padding: 12px 16px;
  background: #f3f4f6;
  border-radius: 10px;
  font-size: 0.85rem;
  color: var(--fb-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

#fillBlanksExplainScreen .fb-retry-locked i {
  color: #9ca3af;
}

/* ── Retry: 정답 보기 버튼 ── */
#fillBlanksExplainScreen .fb-retry-reveal {
  margin-top: 12px;
  padding: 8px 18px;
  border: 1.5px solid var(--fb-text-muted);
  border-radius: 10px;
  background: #fff;
  color: var(--fb-text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

#fillBlanksExplainScreen .fb-retry-reveal:hover:not(:disabled) {
  background: var(--fb-primary-soft);
  border-color: var(--fb-primary);
  color: var(--fb-primary);
}

#fillBlanksExplainScreen .fb-retry-reveal:disabled {
  opacity: 0.5;
  cursor: default;
}

#fillBlanksExplainScreen .fb-retry-feedback-reveal {
  color: var(--fb-primary);
}

/* ── Retried blank indicator ── */
#fillBlanksExplainScreen .result-blank.incorrect.retried {
  background: #fef3c7;
  color: #92400e;
  border: none;
}

#fillBlanksExplainScreen .result-blank.incorrect.retried i {
  color: var(--fb-success);
}


/* ── Responsive ── */
@media (max-width: 768px) {
  #fillBlanksExplainScreen .result-section {
    padding: 16px;
  }
  #fillBlanksExplainScreen .result-summary {
    flex-direction: column;
  }
  #fillBlanksExplainScreen .result-passage {
    font-size: 1rem;
    padding: 20px;
  }
  #fillBlanksExplainScreen .score-value {
    font-size: 2rem;
  }
  #fillBlanksExplainScreen .common-mistakes-header-row {
    flex-direction: column;
    align-items: flex-start;
  }
  #fillBlanksExplainScreen .fb-retry-char {
    width: 24px;
    height: 32px;
    font-size: 1rem;
  }
  #fillBlanksExplainScreen .fb-retry-submit {
    margin-left: 8px;
    padding: 6px 14px;
    font-size: 0.85rem;
  }
  #fillBlanksExplainScreen .fb-retry-reveal {
    font-size: 0.8rem;
    padding: 6px 14px;
  }
}