/* ============================================================
   battle.css - 전투 화면 전용 스타일 (모든 새 클래스는 .bt- 접두사)
   가로: 상단바 64 + 캔버스 426 + 문제 패널 230 = 720
   세로(body.mw-portrait): 상단바 64 + 캔버스 616 + 문제 패널 600 = 1280
   ============================================================ */

.bt-wrap { position: absolute; inset: 0; display: flex; flex-direction: column; }

/* ===== 상단바 ===== */
.bt-topbar {
  flex: 0 0 64px;
  display: flex; align-items: center; gap: 16px;
  padding: 0 18px;
  background: rgba(255, 250, 240, 0.96);
  border-bottom: 3px solid var(--c-panel-border);
  z-index: 5;
}
.bt-stage { font-size: 24px; }
.bt-count {
  font-size: 18px;
  background: #fff;
  border: 2px solid #e8dfc8;
  border-radius: 999px;
  padding: 4px 14px;
}
.bt-count b { color: var(--c-accent); font-size: 20px; }
.bt-hp { margin-left: auto; display: flex; align-items: center; gap: 8px; font-size: 22px; }
.bt-hp .meter { width: 260px; height: 24px; border-radius: 12px; }
.bt-hp .meter-label { font-size: 15px; }

/* ===== Phaser 캔버스 ===== */
#bt-canvas { flex: 0 0 426px; position: relative; overflow: hidden; }
#bt-canvas canvas { display: block; }

/* 보스 등장 경고 배너 */
.bt-boss-banner {
  position: absolute;
  top: 24px; left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  background: rgba(180, 30, 40, 0.92);
  color: #fff;
  font-size: 30px;
  padding: 10px 34px;
  border-radius: 16px;
  border: 3px solid #ffd2ad;
  box-shadow: 0 8px 24px rgba(120, 0, 10, 0.4);
  white-space: nowrap;
  animation: bt-boss-warn 0.55s ease-in-out 3;
  pointer-events: none;
}
@keyframes bt-boss-warn {
  0%, 100% { transform: translateX(-50%) scale(1); }
  50% { transform: translateX(-50%) scale(1.08); }
}
body.mw-portrait .bt-boss-banner { font-size: 22px; padding: 8px 20px; top: 18px; }

/* ===== 하단 문제 패널 ===== */
.bt-bottom {
  flex: 0 0 230px;
  display: flex; gap: 14px;
  padding: 10px 14px;
  background: rgba(255, 250, 240, 0.97);
  border-top: 3px solid var(--c-panel-border);
  z-index: 5;
}
.bt-quiz { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.bt-problem {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  font-size: 52px;
  line-height: 1.15;
  text-align: center;
  padding: 0 8px;
  overflow: hidden;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.bt-problem-md { font-size: 38px; }
.bt-problem-sm { font-size: 28px; line-height: 1.3; }

/* ===== 오답 힌트 / 정답 공개 바 ===== */
.bt-hint {
  flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 6px 12px;
  font-size: 17px;
  line-height: 1.3;
  padding: 4px 10px;
  border-radius: 12px;
  background: #fff8e0;
  border: 2px solid #f2d98c;
  color: #7a5b00;
  text-align: center;
}
.bt-hint[hidden] { display: none; }
.bt-hint-reveal {
  background: #e8f6ff;
  border-color: #9fd3f2;
  color: #17547a;
}
.bt-hint-answer { font-size: 21px; font-weight: 700; color: #0b6bb0; }
.bt-hint-answer .mfr { vertical-align: middle; }
.bt-hint-sol { font-size: 16px; }
.bt-hint-follow { font-size: 16px; font-weight: 700; }
.bt-hint-skip { padding: 2px 12px; min-height: 30px; font-size: 15px; }

.bt-quiz-row { flex: 0 0 84px; display: flex; align-items: center; gap: 16px; }
.bt-answer {
  min-width: 210px; height: 78px;
  display: flex; align-items: center; justify-content: center;
  background: #fff;
  border: 3px solid #e3d9c2;
  border-radius: 16px;
  font-size: 42px;
  letter-spacing: 2px;
  padding: 0 18px;
  box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.06);
}
.bt-answer-ph { opacity: 0.3; }
.bt-quiz-side { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.bt-feedback { font-size: 21px; min-height: 30px; }
.bt-fb-good { color: var(--c-good-dark); }
.bt-fb-warm { color: #e07d00; }
.bt-fb-info { color: var(--c-text-soft); }
.bt-streak { font-size: 22px; min-height: 28px; color: #ff7300; text-shadow: 0 1px 0 #fff; }
/* 콤보 단계별 강조 (3연속/5연속/8연속) */
.bt-streak-s1 { color: #ff7300; }
.bt-streak-s2 { color: #ff4400; font-weight: 700; }
.bt-streak-s3 {
  color: #e6007a; font-weight: 700;
  text-shadow: 0 1px 0 #fff, 0 0 10px rgba(255, 80, 160, 0.55);
  animation: bt-combo-pulse 0.9s ease-in-out infinite;
}
@keyframes bt-combo-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

/* ===== 물약 버튼 (전투 중 사용) ===== */
.bt-potions { display: flex; gap: 6px; margin-top: 2px; }
.bt-potion-btn {
  position: relative;
  width: 52px; height: 52px;
  font-size: 26px;
  background: #fff;
  border: 3px solid #d9cba6;
  border-radius: 14px;
  cursor: pointer;
  box-shadow: 0 3px 0 #cbbd97;
  transition: transform 0.1s;
}
.bt-potion-btn:hover:not(:disabled) { transform: translateY(-2px); }
.bt-potion-btn:disabled { opacity: 0.4; cursor: default; }
.bt-potion-n {
  position: absolute;
  top: -7px; right: -7px;
  min-width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-accent);
  color: #fff;
  font-size: 13px;
  border-radius: 999px;
  padding: 0 5px;
  border: 2px solid #fff;
}
body.mw-portrait .bt-potions { gap: 8px; }
body.mw-portrait .bt-potion-btn { width: 56px; height: 56px; }

/* ===== 숫자 패드 (버튼 최소 64px) ===== */
.bt-pad {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 84px) 120px;
  grid-template-rows: repeat(2, 1fr);
  gap: 9px;
}
.bt-pad .bt-key {
  min-width: 64px; min-height: 64px;
  width: 100%; height: 100%;
  padding: 0;
  font-size: 32px;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #f3edde);
  color: var(--c-text);
  border: 2px solid #e2d8bf;
  box-shadow: 0 4px 0 rgba(120, 100, 60, 0.25);
}
.bt-pad .bt-key-del {
  background: linear-gradient(180deg, #ffe9e0, #ffd9c9);
  color: #b04a2a;
  border-color: #f2c4ad;
}
.bt-pad .bt-key-go {
  font-size: 25px;
  background: linear-gradient(180deg, #54dd85, var(--c-good));
  color: #0c4d26;
  border: none;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.18);
}
.bt-pad .bt-key-extra {
  background: linear-gradient(180deg, #e8f1ff, #cfe3ff);
  color: #1f5fb0;
  border-color: #a9ccf5;
  font-size: 24px;
}

/* ----- 추가 키(소수점·칸 이동)가 있는 패드: 가로 7열, 발사 버튼이 2행 차지 ----- */
.bt-pad-x {
  grid-template-columns: repeat(5, 84px) 84px 110px;
  grid-template-rows: repeat(2, 1fr);
}
.bt-pad-x .bt-key[data-key="del"] { grid-area: 1 / 6 / 2 / 7; }
.bt-pad-x .bt-key-extra { grid-area: 2 / 6 / 3 / 7; }
.bt-pad-x .bt-key-go { grid-area: 1 / 7 / 3 / 8; }

/* ----- 선택형(4지선다): 패드 자리를 큰 보기 버튼이 채움 ----- */
.bt-pad-choice { display: block; }
.bt-choices {
  width: 100%; height: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 1fr;
  gap: 10px;
}
.bt-choice {
  min-height: 64px;
  font-size: 24px;
  padding: 4px 10px;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #f0ecff);
  color: var(--c-text);
  border: 3px solid #cfc4f2;
  box-shadow: 0 4px 0 rgba(90, 70, 150, 0.25);
  overflow: hidden;
}
.bt-choice.bt-choice-no {
  filter: grayscale(0.9);
  opacity: 0.45;
  text-decoration: line-through;
}

/* ----- 분수/몫·나머지 입력 칸 ----- */
.bt-answer { gap: 8px; }
.bt-cell {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 74px; height: 46px;
  padding: 0 10px;
  background: #fbf8ef;
  border: 3px dashed #d8cba6;
  border-radius: 10px;
  font-size: 30px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.bt-cell-on {
  border-style: solid;
  border-color: var(--c-primary);
  background: #fff6dd;
  box-shadow: 0 0 8px rgba(255, 159, 28, 0.4);
}
.bt-cell-ph { font-size: 14px; color: #b3a988; letter-spacing: 0; }
.bt-frac { display: inline-flex; align-items: center; gap: 12px; }
.bt-frac-nd { display: inline-flex; flex-direction: column; gap: 4px; }
.bt-frac-nd .bt-cell { height: 34px; font-size: 24px; }
.bt-frac-nd .bt-cell:first-child { border-bottom-width: 3px; }
.bt-frac-nd .bt-cell + .bt-cell { border-top-width: 3px; }
.bt-qr { display: inline-flex; align-items: center; gap: 8px; }
.bt-qr-label { font-size: 18px; color: var(--c-text-soft); letter-spacing: 0; }
.bt-answer-hint { font-size: 22px; letter-spacing: 0; }

/* ----- 문제 속 세로 분수 표기 (MW.Problems.fmt) ----- */
.mfr {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  vertical-align: middle;
  line-height: 1.05;
  margin: 0 3px;
  font-size: 0.72em;
}
.mfr > b { font-weight: inherit; border-bottom: 3px solid currentColor; padding: 0 6px; }
.mfr > i { font-style: normal; padding: 0 6px; }

/* ===== 결과 오버레이 ===== */
.bt-overlay {
  position: absolute; inset: 0;
  z-index: 60;
  background: rgba(43, 34, 80, 0.45);
  display: flex; align-items: center; justify-content: center;
}
.bt-overlay[hidden] { display: none; }
.bt-result {
  width: 580px;
  max-height: 660px;
  overflow-y: auto;
  padding: 26px 32px 24px;
  text-align: center;
  animation: mw-pop 0.35s ease;
}
.bt-result-title { font-size: 52px; line-height: 1.15; }
.bt-result-sub { font-size: 20px; color: var(--c-text-soft); margin-top: 4px; }
.bt-rewards {
  margin: 14px auto 0;
  max-width: 440px;
  background: #fff;
  border: 2px solid #eee3c8;
  border-radius: 14px;
  padding: 10px 18px;
}
.bt-reward-row { display: flex; justify-content: space-between; gap: 12px; font-size: 19px; padding: 3px 0; }
.bt-reward-total { border-top: 2px dashed #e5d9ba; margin-top: 5px; padding-top: 8px; font-size: 22px; }
.bt-bonus-note { margin-top: 5px; font-size: 16px; color: #a06be0; }
.bt-consol {
  margin: 14px auto 0;
  max-width: 440px;
  background: #fff;
  border: 2px solid #eee3c8;
  border-radius: 14px;
  padding: 12px 18px;
  font-size: 20px;
}
.bt-levelup {
  margin: 12px auto 0;
  max-width: 440px;
  background: #fff6dd;
  border: 2px solid #f2d98c;
  border-radius: 14px;
  padding: 10px 14px;
  animation: mw-pop 0.4s ease 0.15s backwards;
}
.bt-levelup-title { font-size: 27px; color: #c07f00; }
.bt-levelup-gain { font-size: 18px; margin-top: 3px; }
.bt-tips {
  margin: 12px auto 0;
  max-width: 440px;
  text-align: left;
  background: var(--c-accent-soft);
  border-radius: 14px;
  padding: 10px 18px;
  font-size: 17px;
  line-height: 1.7;
  color: #5a4d91;
}
.bt-result-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.bt-result-btns .btn { font-size: 21px; padding: 12px 22px; }

/* ===== 작은 팝 애니메이션 (문제/피드백 갱신용) ===== */
@keyframes bt-pop { 0% { transform: scale(0.78); } 100% { transform: scale(1); } }
.bt-pop { animation: bt-pop 0.18s ease; }

/* ============================================================
   세로 모드 (720x1280) — body.mw-portrait
   ============================================================ */
body.mw-portrait .bt-topbar { gap: 8px; padding: 0 10px; }
body.mw-portrait .bt-stage { font-size: 17px; }
body.mw-portrait .bt-count { font-size: 13px; padding: 3px 10px; }
body.mw-portrait .bt-count b { font-size: 15px; }
body.mw-portrait .bt-hp { font-size: 16px; gap: 5px; }
body.mw-portrait .bt-hp .meter { width: 150px; height: 20px; }
body.mw-portrait .bt-hp .meter-label { font-size: 12px; }

body.mw-portrait #bt-canvas { flex: 0 0 616px; }

body.mw-portrait .bt-bottom {
  flex: 1 1 auto; min-height: 0;
  flex-direction: column;
  gap: 8px;
  padding: 10px 14px 14px;
}
body.mw-portrait .bt-quiz { flex: 0 0 auto; }
body.mw-portrait .bt-problem { flex: 0 0 auto; min-height: 76px; font-size: 44px; }
body.mw-portrait .bt-problem-md { font-size: 34px; }
body.mw-portrait .bt-problem-sm { font-size: 25px; }
body.mw-portrait .bt-quiz-row { flex: 0 0 70px; gap: 10px; }
body.mw-portrait .bt-answer { min-width: 0; flex: 1 1 auto; height: 66px; font-size: 36px; }
body.mw-portrait .bt-quiz-side { flex: 0 0 200px; }
body.mw-portrait .bt-feedback { font-size: 17px; min-height: 24px; }
body.mw-portrait .bt-streak { font-size: 18px; min-height: 22px; }
body.mw-portrait .bt-hint { font-size: 18px; padding: 6px 10px; }
body.mw-portrait .bt-hint-answer { font-size: 23px; }
body.mw-portrait .bt-hint-sol { font-size: 17px; }

/* 숫자 패드: 5열 3행, 큰 터치 버튼 */
body.mw-portrait .bt-pad {
  flex: 1 1 auto; min-height: 0;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 10px;
}
body.mw-portrait .bt-key[data-key="1"] { grid-area: 1 / 1 / 2 / 2; }
body.mw-portrait .bt-key[data-key="2"] { grid-area: 1 / 2 / 2 / 3; }
body.mw-portrait .bt-key[data-key="3"] { grid-area: 1 / 3 / 2 / 4; }
body.mw-portrait .bt-key[data-key="4"] { grid-area: 1 / 4 / 2 / 5; }
body.mw-portrait .bt-key[data-key="5"] { grid-area: 1 / 5 / 2 / 6; }
body.mw-portrait .bt-key[data-key="6"] { grid-area: 2 / 1 / 3 / 2; }
body.mw-portrait .bt-key[data-key="7"] { grid-area: 2 / 2 / 3 / 3; }
body.mw-portrait .bt-key[data-key="8"] { grid-area: 2 / 3 / 3 / 4; }
body.mw-portrait .bt-key[data-key="9"] { grid-area: 2 / 4 / 3 / 5; }
body.mw-portrait .bt-key[data-key="0"] { grid-area: 2 / 5 / 3 / 6; }
body.mw-portrait .bt-key[data-key="del"] { grid-area: 3 / 1 / 4 / 3; }
body.mw-portrait .bt-key[data-key="go"] { grid-area: 3 / 3 / 4 / 6; }
body.mw-portrait .bt-pad .bt-key { font-size: 36px; }
body.mw-portrait .bt-pad .bt-key-go { font-size: 30px; }

/* 세로 모드: 추가 키가 있으면 3행을 [지움1][추가키1][발사3]로 나눔 */
body.mw-portrait .bt-pad-x { grid-template-columns: repeat(5, 1fr); grid-template-rows: repeat(3, 1fr); }
body.mw-portrait .bt-pad-x .bt-key[data-key="del"] { grid-area: 3 / 1 / 4 / 2; }
body.mw-portrait .bt-pad-x .bt-key-extra { grid-area: 3 / 2 / 4 / 3; }
body.mw-portrait .bt-pad-x .bt-key-go { grid-area: 3 / 3 / 4 / 6; }

body.mw-portrait .bt-pad-choice { display: block; }
body.mw-portrait .bt-choice { font-size: 28px; min-height: 90px; }
body.mw-portrait .bt-cell { min-width: 84px; height: 52px; font-size: 32px; }
body.mw-portrait .bt-frac-nd .bt-cell { height: 40px; font-size: 26px; }
body.mw-portrait .bt-answer-hint { font-size: 24px; }

body.mw-portrait .bt-result { width: 620px; max-width: 94%; max-height: 1100px; }