/* ============================================================
   스트룹 테스트 전용 스타일
   - 글자색을 판단하는 게임이라 자극 패널 배경은 색 판단을 방해하지
     않는 중립 톤(테마 무관 고정)으로 둔다. 노랑·주황도 또렷하게.
   - 색이름 글자는 아주 크고 굵게(잉크색이 한눈에 들어오게).
   - 답 버튼은 색 스와치. 숫자키 힌트를 함께 표시.
   - 최고 기록은 localStorage 에만 저장(서버 0, 외부 요청 0).
   ============================================================ */

/* ---- 도입부 ---- */
.tool-intro { padding: clamp(30px, 5vw, 56px) 0 clamp(14px, 3vw, 26px); }
.tool-intro h1 { margin: 0 0 var(--space-4); }
.tool-intro .lead {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--color-text-sub);
  max-width: 54ch;
  margin: 0;
}
.tool-intro .lead strong { color: var(--color-text); }
.tool-intro .lead-note {
  margin: var(--space-3) 0 0;
  font-size: .88rem;
  color: var(--color-text-sub);
}

/* ---- 설정 ---- */
.st-controls {
  max-width: 560px;
  margin: 0 auto var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.st-field { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-2) var(--space-3); }
.st-lab { font-size: .82rem; color: var(--color-text-sub); min-width: 3.6em; }
.st-chips { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.st-chip {
  font: inherit;
  font-size: .95rem;
  cursor: pointer;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-sub);
  touch-action: manipulation;
}
.st-chip small { font-size: .78em; opacity: .8; }
.st-chip[aria-pressed="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.st-chip:hover { border-color: var(--color-primary); }
.st-field-note { flex-basis: 100%; font-size: .82rem; color: var(--color-text-sub); }

/* ---- 게임판 영역 ---- */
.st-stage { max-width: 560px; margin: 0 auto; }

/* HUD */
.st-hud {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  margin-bottom: var(--space-2);
}
.st-stat { flex: 1; font-variant-numeric: tabular-nums; color: var(--color-text-sub); font-size: .9rem; }
.st-stat b { display: block; font-size: 1.35rem; color: var(--color-text); line-height: 1.15; font-variant-numeric: tabular-nums; }

/* 진행 막대 */
.st-progbar {
  height: 8px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.st-progfill {
  height: 100%;
  width: 0;
  background: var(--color-primary);
  border-radius: 999px;
  transition: width .18s ease;
}

.st-board-wrap { position: relative; }

/* 자극 패널: 테마와 무관한 중립 배경(어떤 잉크색이든 또렷하게) */
.st-word-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  background: #f4f2ee;           /* 라이트·다크 공통 고정: 색 판단 공정성 */
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
}
.st-word {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(3.2rem, 15vw, 6.2rem);
  letter-spacing: .02em;
  line-height: 1;
  transition: transform .08s ease;
}
.st-word.is-pop { transform: scale(1.06); }

/* 답 버튼(색 스와치) */
.st-answers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.st-ans {
  position: relative;
  font: inherit;
  font-weight: 800;
  font-size: 1.15rem;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  border: 0;
  border-radius: 12px;
  padding: 16px 8px 18px;
  color: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform .06s ease, filter .1s ease;
}
.st-ans:hover { filter: brightness(1.05); }
.st-ans:active { transform: scale(.96); }
.st-ans:disabled { cursor: default; }
.st-ans .st-key {
  position: absolute;
  top: 6px;
  left: 8px;
  font-size: .72rem;
  font-weight: 700;
  opacity: .85;
  background: rgba(0,0,0,.22);
  border-radius: 5px;
  padding: 1px 6px;
  line-height: 1.4;
}
.st-ans.is-wrong { animation: st-shake .3s ease; }
.st-ans.is-right { box-shadow: 0 0 0 3px var(--color-bg), 0 0 0 6px currentColor; }
@keyframes st-shake {
  25% { transform: translateX(-5px); } 50% { transform: translateX(5px); }
  75% { transform: translateX(-3px); }
}

.st-feedback {
  min-height: 1.4em;
  margin: var(--space-3) 0 0;
  text-align: center;
  font-size: .95rem;
  font-weight: 700;
  color: var(--color-text-sub);
}
.st-feedback.is-ok { color: #1f9e4a; }
.st-feedback.is-no { color: var(--color-primary); }

/* ---- 오버레이(시작 / 종료) ---- */
.st-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-1);
  padding: var(--space-5);
  border-radius: 16px;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  -webkit-backdrop-filter: blur(3px);
          backdrop-filter: blur(3px);
}
@supports not (background: color-mix(in srgb, red 50%, transparent)) {
  .st-overlay { background: rgba(243, 240, 232, .92); }
  :root[data-theme="dark"] .st-overlay { background: rgba(23, 19, 14, .92); }
}
.st-over-eyebrow { margin: 0; font-size: 1rem; color: var(--color-text-sub); }
.st-over-title { margin: 0; font-family: var(--font-serif); font-weight: 700; font-size: 1.7rem; }
.st-over-note { margin: var(--space-2) 0 0; font-size: .9rem; color: var(--color-text-sub); max-width: 32ch; }
.st-over-note b { color: var(--color-text); }
.st-over-score { margin: 0; font-family: var(--font-serif); line-height: 1.05; }
.st-over-score b { font-size: 3.6rem; color: var(--color-primary); font-variant-numeric: tabular-nums; }
.st-over-score span { font-size: 1.3rem; color: var(--color-text-sub); margin-left: 4px; }
.st-over-comment { margin: var(--space-1) 0 0; font-size: 1.05rem; font-weight: 700; max-width: 30ch; }
.st-over-lines {
  margin: var(--space-3) 0 0;
  width: min(100%, 300px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.st-over-line {
  display: flex;
  justify-content: space-between;
  margin: 0;
  font-size: .95rem;
  color: var(--color-text-sub);
  font-variant-numeric: tabular-nums;
}
.st-over-line b { color: var(--color-text); }
.st-over-line.st-split { gap: var(--space-3); }
.st-over-line.st-split span { display: flex; gap: 6px; }
.st-over-best { margin: var(--space-2) 0 0; font-size: .9rem; color: var(--color-text-sub); font-variant-numeric: tabular-nums; }

.st-btn-big {
  font: inherit;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
  margin-top: var(--space-3);
  padding: 15px 40px;
  border-radius: 999px;
  border: 0;
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow);
}
.st-btn-big:hover { filter: brightness(1.06); }
.st-btn-big:active { transform: scale(.97); }

/* ---- 본문 ---- */
.prose { max-width: 720px; margin: clamp(40px, 6vw, 64px) auto 0; }
.prose h2 { margin: 0 0 var(--space-3); }
.prose p { margin: 0 0 var(--space-3); color: var(--color-text); }
.prose ul { margin: 0; padding-left: 1.2em; }
.prose li { margin-bottom: var(--space-2); }
.prose li strong { color: var(--color-text); }

/* 좁은 화면: 답 버튼 2열 */
@media (max-width: 380px) {
  .st-answers { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .st-progfill, .st-btn-big, .st-word, .st-ans { transition: none; }
  .st-ans.is-wrong { animation: none; }
}