/* 사자성어 챌린지 — 40초 빈칸 채우기 */

.board-wrap {
  position: relative;
  width: min(92vw, 480px);
  margin: 0 auto;
}

.idiom-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 28px 20px;
  background: linear-gradient(135deg, #ffd24a, #f49d2a);
  border-radius: 24px;
  color: #2b1d04;
  user-select: none;
  min-height: 320px;
  text-align: center;
  transition: transform 0.1s;
  box-shadow: 0 10px 30px rgba(255, 210, 74, 0.25);
}

.idiom-card.correct { animation: pop 0.3s ease; }
.idiom-card.wrong   { animation: shake 0.35s ease; }

@keyframes pop {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.04); }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-10px); }
  75%      { transform: translateX(10px); }
}

.idiom-meaning {
  font-size: clamp(1rem, 4.2vw, 1.2rem);
  font-weight: 600;
  line-height: 1.5;
  color: #3a2606;
  min-height: 3em;
  padding: 0 4px;
}

.idiom-word {
  display: flex;
  gap: 8px;
  font-variant-numeric: tabular-nums;
}

.idiom-cell {
  width: clamp(48px, 14vw, 64px);
  height: clamp(48px, 14vw, 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.65);
  color: #2b1d04;
  border-radius: 12px;
  font-size: clamp(1.5rem, 6vw, 2rem);
  font-weight: 800;
}

.idiom-cell.idiom-blank {
  background: rgba(43,29,4,0.85);
  color: #ffd24a;
  border: 2px dashed rgba(255,255,255,0.6);
  font-size: clamp(1.6rem, 6.5vw, 2.2rem);
}

/* 다음 채울 빈칸 — 강하게 강조 + 펄스 */
.idiom-cell.idiom-blank.active {
  border-color: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
  animation: blink-active 1s ease-in-out infinite;
}

@keyframes blink-active {
  0%, 100% { box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35); }
  50%      { box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.15); }
}

.idiom-cell.idiom-blank.filled {
  background: #2b1d04;
  color: #fff;
  border-style: solid;
  animation: none;
  box-shadow: none;
}

/* 오답 시 정답 노출용 */
.idiom-cell.idiom-blank.reveal {
  background: #2ed573;
  color: #fff;
  border-color: #2ed573;
}

.idiom-choices {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: 100%;
  max-width: 360px;
}

.idiom-choice {
  min-width: 0;
  padding: 14px 6px;
  background: #fff;
  color: #2b1d04;
  border: 0;
  border-radius: 12px;
  font-family: inherit;
  font-size: clamp(1.2rem, 5vw, 1.5rem);
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.1s, background 0.15s, opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.idiom-choice:not(:disabled):hover  { background: #fff7d8; transform: translateY(-1px); }
.idiom-choice:not(:disabled):active { transform: scale(0.95); }

.idiom-choice.correct  { background: #2ed573; color: #fff; animation: pop 0.25s ease; }
.idiom-choice.wrong    { background: #ff4757; color: #fff; animation: shake 0.3s ease; }
.idiom-choice:disabled { opacity: 0.55; cursor: not-allowed; }

/* ===== 시작 오버레이 ===== */

.idiom-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 41, 0.78);
  backdrop-filter: blur(8px);
  border-radius: 24px;
  z-index: 5;
  transition: opacity 0.2s;
}
.idiom-overlay.hidden { opacity: 0; pointer-events: none; }

.overlay-content { text-align: center; padding: 24px; }
.overlay-icon { font-size: 3.5rem; margin-bottom: 12px; }
.overlay-content h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; color: var(--text); }
.overlay-content p { color: var(--text-dim); margin-bottom: 18px; line-height: 1.5; }

.hint {
  text-align: center;
  margin-top: 20px;
  color: var(--text-dim);
  font-size: 0.88rem;
  padding: 0 16px;
}

/* ===== 결과 모달 — math 게임과 동일 패턴 ===== */

.result-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 41, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
  animation: fadeIn 0.25s ease;
}
.result-modal.hidden { display: none; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.result-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px 28px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow);
  animation: slideUp 0.3s ease;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result-emoji { font-size: 4rem; margin-bottom: 8px; }
.result-card h2 { font-size: 1.5rem; margin-bottom: 8px; }
.result-msg { color: var(--text-dim); margin-bottom: 24px; }

.result-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.result-stats > div {
  background: rgba(255,255,255,0.05);
  padding: 14px;
  border-radius: 12px;
}
.result-stats span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.result-stats strong {
  font-size: 1.6rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.result-rank {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 8px 0 4px;
  color: var(--accent);
}

.result-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}
.result-actions .btn {
  padding: 12px 16px;
  text-align: center;
  font-size: 0.95rem;
}