: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;
}

/* ─── 규칙 전환 ────────────────────────────────────────────
   위에서부터: 단계/목숨 · 질문 · 도형 · 문구 · 게이지 · 두 버튼.
   화면에 나오는 도형은 늘 같은 종류지만 **질문**이 바뀐다 — 그게 이 게임이다. */
#game {
  flex-direction: column;
  justify-content: flex-start;
  align-items: stretch;
  gap: 12px;
  min-height: 0;
}

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

.ts-level {
  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);
}

.ts-lives { display: flex; gap: 7px; }
.ts-life { width: 13px; height: 13px; border-radius: 999px; background: #ff5a5a;
  box-shadow: 0 0 9px rgba(255, 90, 90, 0.45); }
.ts-life.gone { background: #2a2a2a; box-shadow: none; }

/* 질문 — 이게 바뀌는 순간이 이 게임의 전부라 가장 눈에 띄게 */
.ts-ask {
  margin: 0;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: #e8e8e8;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: background 0.1s ease, border-color 0.1s ease;
}

.ts-ask.color { background: rgba(255, 202, 87, 0.10); border-color: rgba(255, 202, 87, 0.30); color: #ffca57; }
.ts-ask.shape { background: rgba(110, 231, 135, 0.10); border-color: rgba(110, 231, 135, 0.30); color: #6ee787; }
/* 직전과 질문이 달라진 문항은 테두리를 굵게 — 사람이 실제로 느려지는 지점 */
.ts-ask.switched { box-shadow: 0 0 0 2px currentColor inset; }

.ts-stage {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ts-shape {
  width: min(46vw, 170px);
  aspect-ratio: 1;
  display: block;
  transition: none;
}

.ts-shape.red { background: #ef4b4b; }
.ts-shape.blue { background: #4f9eff; }
.ts-shape.circle { border-radius: 50%; }
.ts-shape.square { border-radius: 14px; }

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

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

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

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

.ts-btn {
  flex: 1;
  font: inherit;
  font-weight: 800;
  font-size: 17px;
  color: #f5f5f5;
  background: #1c1c1c;
  border: 1px solid #333;
  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;
}

/* 버튼은 답의 성격을 그대로 보여준다 — 색 문항이면 색으로, 모양 문항이면 모양으로 */
.ts-btn.red { background: #2f1616; border-color: #6b2b2b; color: #ff9b9b; }
.ts-btn.blue { background: #16223a; border-color: #2c4a7a; color: #9fc6ff; }
.ts-btn.circle, .ts-btn.square { background: #1a2620; border-color: #2c5539; color: #a8e9bd; }
.ts-btn:active { filter: brightness(1.35); }
.ts-btn:disabled { opacity: 0.4; cursor: default; }

.overlay-sub { margin: 0; font-size: 13px; font-weight: 700; color: #a0a0a0; }

@media (max-height: 700px) {
  .ts-shape { width: min(36vw, 130px); }
  .ts-btn { min-height: 58px; font-size: 15px; }
  .ts-ask { font-size: 19px; min-height: 38px; }
}