/* ===========================
   Math Adventure — game.css
   게임·애니메이션 전용 스타일
   =========================== */

/* 숫자 키패드 (저학년 터치 친화) */
.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 320px;
  margin: 12px auto 0;
}
.keypad .key {
  font-size: 26px;
  font-weight: 800;
  padding: 16px 0;
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-md, 14px);
  background: #fff;
  color: var(--color-text, #333);
  cursor: pointer;
  transition: transform .06s, background .15s;
  -webkit-tap-highlight-color: transparent;
}
.keypad .key:active { transform: scale(.94); background: #efecfb; }
.keypad .key-ok  { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.keypad .key-del { background: #fce4e4; border-color: #f3b6b6; }

/* 정답 표시창 */
.answer-display {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--color-primary);
  min-height: 56px;
  line-height: 56px;
  border-bottom: 3px dashed #c7bff2;
  margin: 8px auto 4px;
  max-width: 260px;
}

/* 객관식 보기 */
.choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}
.choice-btn {
  font-size: 22px;
  font-weight: 800;
  padding: 18px 0;
  border: 2px solid #e0e0e0;
  background: #fff;
  color: var(--color-text, #333);
}
.choice-btn:active { transform: scale(.96); background: #efecfb; }

/* 개념 예제 / 문장제 박스 */
.example-box {
  background: #f0eefc;
  border-radius: var(--radius-md, 14px);
  padding: 14px;
  margin-top: 8px;
}
.story-box {
  background: #e6f7f5;
  border-radius: var(--radius-md, 14px);
  padding: 16px;
  font-size: var(--font-size-lg);
  line-height: 1.6;
  text-align: center;
}

/* 탐험 맵 */
.map-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #5B47E0 0%, #00B8A9 100%);
  min-height: 400px;
}

.map-region {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.map-region:hover { transform: scale(1.1); }

.map-region.locked { filter: grayscale(1) opacity(0.5); cursor: not-allowed; }

.map-region .region-icon {
  font-size: 48px;
  filter: drop-shadow(0 4px 4px rgba(0,0,0,0.2));
}

.map-region .region-name {
  font-size: 12px;
  font-weight: 700;
  background: rgba(255,255,255,0.9);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-top: 4px;
}

/* 퀴즈 선택지 */
.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-md);
  margin-top: var(--gap-lg);
}

.quiz-option {
  padding: var(--gap-md);
  border-radius: var(--radius-md);
  border: 3px solid #e0e0e0;
  background: var(--color-surface);
  font-size: var(--font-size);
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.1s;
  text-align: center;
}

.quiz-option:active { transform: scale(0.97); }
.quiz-option.correct { border-color: var(--color-success); background: #e8f5e9; }
.quiz-option.wrong   { border-color: var(--color-accent);  background: #fde8e8; }
.quiz-option:hover:not(.correct):not(.wrong) { border-color: var(--color-primary); }

/* 문장 만들기 — 정답 칸 / 칩 뱅크 */
.sentence-slots {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  min-height: 56px;
  padding: var(--gap-md);
  border: 3px dashed #c7d2e0;
  border-radius: var(--radius-md);
  background: #f8fbff;
  margin-bottom: var(--gap-md);
}
.sentence-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  min-height: 48px;
  margin-bottom: var(--gap-sm);
}
.sentence-placeholder {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}
.chip {
  padding: 10px 16px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-primary);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: var(--font-size);
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.1s, background 0.2s, border-color 0.2s;
}
.chip:active { transform: scale(0.94); }
.chip.placed { background: var(--color-primary); color: #fff; }
.chip.correct { border-color: var(--color-success); background: var(--color-success); color: #fff; }

/* NPC 회화 관문 */
.npc-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: var(--gap-md);
}
.npc-face {
  font-size: 44px;
  line-height: 1;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 3px rgba(0,0,0,0.15));
}
.npc-bubble {
  position: relative;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}
.npc-bubble .npc-en { font-weight: 800; color: var(--color-primary); }
.npc-bubble .npc-ko { color: var(--color-text-light); font-size: var(--font-size-sm); margin-top: 4px; }
.npc-feedback { min-height: 8px; margin-bottom: var(--gap-sm); }
.npc-actions {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--gap-sm);
}
.npc-hp {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-top: var(--gap-md);
}

/* 단어 폭탄 미니게임 */
.bomb-game {
  position: relative;
  height: 400px;
  background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.falling-word {
  position: absolute;
  background: var(--color-secondary);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-weight: 700;
  animation: fall linear forwards;
  cursor: pointer;
}

@keyframes fall {
  from { top: -60px; }
  to   { top: 110%; }
}

/* 빙고판 */
.bingo-board {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gap-sm);
  padding: var(--gap-md);
}

.bingo-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s, border-color 0.2s;
}

.bingo-cell.marked   { background: var(--color-primary); color: #fff; }
.bingo-cell.bingo    { background: var(--color-secondary); color: #fff; animation: pulse 0.5s; }
.bingo-cell:hover    { border-color: var(--color-primary); }

/* 캐릭터 표시 */
.character-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-sm);
}

.character-avatar {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  box-shadow: var(--shadow-md);
  border: 4px solid #fff;
}

/* 레벨업 애니메이션 */
.level-up-effect {
  animation: levelUp 0.8s ease-out forwards;
}

@keyframes levelUp {
  0%   { transform: scale(1);    opacity: 1; }
  50%  { transform: scale(1.3);  opacity: 1; }
  100% { transform: scale(1);    opacity: 1; }
}

/* 정답/오답 피드백 */
.feedback-correct {
  animation: correctFlash 0.5s ease;
}

.feedback-wrong {
  animation: wrongShake 0.5s ease;
}

@keyframes correctFlash {
  0%, 100% { background: var(--color-surface); }
  50%      { background: #e8f5e9; }
}

@keyframes wrongShake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-8px); }
  75%      { transform: translateX(8px); }
}