:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
  touch-action: manipulation;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100dvh;
  overflow: hidden;
  background: #0a0a0a;
  color: #f5f5f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}

main {
  height: 100%;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding:
    max(60px, env(safe-area-inset-top))
    16px
    max(20px, env(safe-area-inset-bottom));
  gap: 16px;
}

/* 점수바: SCORE | BEST | New 버튼 */
.score-bar {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.score-box {
  flex: 1;
  background: #161616;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  padding: 8px 12px;
  text-align: center;
  min-width: 0;
}

.score-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #a0a0a0;
}

.score-val,
.best-val {
  display: block;
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: #f5f5f5;
  margin-top: 2px;
  line-height: 1.1;
}

.new-btn {
  flex: 0 0 auto;
  font: inherit;
  color: #fff;
  background: #4f9eff;
  border: none;
  border-radius: 12px;
  padding: 0 18px;
  min-height: 56px;
  cursor: pointer;
  font-weight: 700;
  font-size: 14px;
  -webkit-tap-highlight-color: transparent;
}

.new-btn:active { background: #3d8ae8; }

/* 게임 영역 — 보드/캠버스/그리드 등을 여기에 */
#game {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 좌상단 ← 홈, 우상단 🏆 명예의 전당 — 모든 게임 공통 chrome */
.home-link,
.hof-link {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  z-index: 10;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  text-decoration: none;
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s ease;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.home-link { left:  max(12px, env(safe-area-inset-left)); }
.hof-link  { right: max(12px, env(safe-area-inset-right)); }

@media (hover: hover) {
  .home-link:hover,
  .hof-link:hover {
    background: rgba(0, 0, 0, 0.55);
  }
}

/* 오버레이 (게임 종료 / 완료 시 점수 + 저장 버튼) */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  padding: 20px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.overlay[hidden] { display: none; }

.overlay-card {
  background: #161616;
  border: 1px solid #2a2a2a;
  border-radius: 18px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
  min-width: 240px;
  max-width: 320px;
  width: 100%;
}

.overlay-card h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.overlay-score {
  margin: 0;
  font-size: 56px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 1;
}

.overlay-card button {
  font: inherit;
  color: #fff;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 12px 20px;
  min-height: 44px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  width: 100%;
  -webkit-tap-highlight-color: transparent;
}

.overlay-card button:active {
  background: rgba(255, 255, 255, 0.18);
}

.overlay-card .save-btn {
  background: #4f9eff;
  border-color: #4f9eff;
}

.overlay-card .save-btn:active {
  background: #3d8ae8;
}

/* ─── 기호 대조 ────────────────────────────────────────────
   위에서부터: 라운드/목숨 · 대조표 · 질문 · 문구 · 게이지 · 두 버튼. */
#game {
  flex-direction: column;
  justify-content: flex-start;
  align-items: stretch;
  gap: 12px;
  min-height: 0;
}

.sc-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 24px;
}

.sc-round {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #9fd0ff;
  padding: 3px 11px;
  border-radius: 999px;
  background: rgba(79, 158, 255, 0.12);
  border: 1px solid rgba(79, 158, 255, 0.28);
}

.sc-lives { display: flex; gap: 7px; }

.sc-life {
  width: 13px;
  height: 13px;
  border-radius: 999px;
  background: #ff5a5a;
  box-shadow: 0 0 9px rgba(255, 90, 90, 0.45);
}

.sc-life.gone { background: #2a2a2a; box-shadow: none; }

/* 대조표 — 항상 보인다. 외우는 게임이 아니라 읽는 게임이다. */
.sc-key {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 10px;
  border-radius: 14px;
  background: #10151f;
  border: 1px solid #1e2636;
}

.sc-pair {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 7px 4px;
  border-radius: 10px;
  background: #171c26;
}

.sc-pair b { font-size: 21px; line-height: 1; color: #e8e8e8; }
.sc-pair i {
  font-style: normal;
  font-size: 16px;
  font-weight: 800;
  color: #4f9eff;
  font-variant-numeric: tabular-nums;
}

.sc-ask {
  margin: 0;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: #8f8f8f;
}

/* 질문: 기호 = 숫자 */
.sc-q {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.sc-sym { font-size: 66px; line-height: 1; color: #f5f5f5; }
.sc-eq { font-size: 34px; font-weight: 700; color: #6a6a6a; }
.sc-num {
  font-size: 60px;
  font-weight: 800;
  line-height: 1;
  color: #4f9eff;
  font-variant-numeric: tabular-nums;
}

.sc-msg {
  margin: 0;
  min-height: 22px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: #b8b8b8;
}

.sc-msg.ok { color: #6ee787; }
.sc-msg.bad { color: #ff6b6b; }

.sc-timer { height: 6px; border-radius: 999px; background: #1d1d1d; overflow: hidden; }
.sc-timer span {
  display: block;
  height: 100%;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(to right, #4f9eff, #6ee787);
}

.sc-acts { display: flex; gap: 10px; }

.sc-btn {
  flex: 1;
  font: inherit;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.03em;
  color: #f5f5f5;
  border-radius: 16px;
  min-height: 72px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: opacity 0.1s ease, background 0.08s ease;
}

.sc-btn.yes { background: #16261c; border: 1px solid #2c5539; color: #a8e9bd; }
.sc-btn.yes:active { background: #1c3326; }
.sc-btn.no { background: #2c1616; border: 1px solid #5a2a2a; color: #ffb3b3; }
.sc-btn.no:active { background: #3a1c1c; }
.sc-btn:disabled { opacity: 0.4; cursor: default; }

.overlay-sub { margin: 0; font-size: 14px; font-weight: 700; color: #a0a0a0; }

@media (max-height: 700px) {
  .sc-sym { font-size: 50px; }
  .sc-num { font-size: 46px; }
  .sc-btn { min-height: 58px; font-size: 15px; }
  .sc-pair b { font-size: 18px; }
}