/* ============================================================
   밸런스 게임 전용 스타일
   - A/B 두 진영의 투톤(주묵색 vs 쪽빛)이 이 도구의 정체성
   - 공통 토큰(common.css) 위에 얹는다. 다크는 변수 재정의로 해결
   ============================================================ */

:root {
  --bal-a: #c23b30;          /* A 진영: 사이트 주묵색 */
  --bal-a-weak: #f6e3df;
  --bal-b: #2f6b8f;          /* B 진영: 쪽빛(파랑 계열이지만 링크색과 겹치지 않는 깊은 톤) */
  --bal-b-weak: #dfeaf2;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bal-a: #e0574a;
    --bal-a-weak: #3a231f;
    --bal-b: #6fa8c9;
    --bal-b-weak: #1d2b36;
  }
}
:root[data-theme="dark"] {
  --bal-a: #e0574a;
  --bal-a-weak: #3a231f;
  --bal-b: #6fa8c9;
  --bal-b-weak: #1d2b36;
}

/* ---- 도입부 배경 모티프: A/B 두 색이 은은하게 맞닿는 워시 ---- */
.tool-intro { padding: clamp(32px, 5vw, 56px) 0 clamp(20px, 3vw, 32px); }
.bg-hero { position: relative; overflow: hidden; }
.bg-hero > * { position: relative; }
.bg-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(48% 90% at 8% 12%, var(--bal-a-weak), transparent 70%),
    radial-gradient(48% 90% at 92% 88%, var(--bal-b-weak), transparent 70%);
  opacity: .8;
  pointer-events: none;
}
.tool-intro .lead { max-width: 62ch; }
.lead-note { color: var(--color-text-sub); font-size: .88rem; margin-top: 4px; }

/* ---- 게임 무대 ---- */
.bg-stage {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: clamp(20px, 4vw, 36px);
  margin-top: var(--space-4);
}

/* ---- 시작 화면 ---- */
.bg-setup { max-width: 560px; margin: 0 auto; text-align: center; }
.bg-setup-label {
  font-weight: 700;
  margin: var(--space-5) 0 var(--space-3);
  letter-spacing: -.01em;
}
.bg-setup-label:first-child { margin-top: 0; }
.bg-topics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-2);
}
.bg-topic {
  font: inherit;
  cursor: pointer;
  text-align: left;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color .15s ease, background .15s ease;
}
.bg-topic strong { display: block; font-size: .98rem; }
.bg-topic small { color: var(--color-text-sub); font-size: .78rem; }
.bg-topic:hover { border-color: var(--bal-a); }
.bg-topic.is-active {
  border-color: var(--bal-a);
  background: var(--bal-a-weak);
}
.bg-counts { display: flex; justify-content: center; gap: var(--space-2); flex-wrap: wrap; }
.bg-chip {
  font: inherit;
  cursor: pointer;
  padding: 9px 18px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text);
}
.bg-chip small { color: var(--color-text-sub); margin-left: 2px; }
.bg-chip:hover { border-color: var(--bal-a); }
.bg-chip.is-active {
  border-color: var(--bal-a);
  background: var(--bal-a);
  color: #fff;
  font-weight: 700;
}
.bg-chip.is-active small { color: rgba(255,255,255,.85); }

.bg-btn-big {
  font: inherit;
  font-size: 1.06rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: var(--space-5);
  padding: 14px 44px;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--bal-a);
  color: #fff;
  transition: transform .12s ease, filter .12s ease;
}
.bg-btn-big:hover { filter: brightness(1.06); }
.bg-btn-big:active { transform: scale(.98); }
.bg-setup-note { color: var(--color-text-sub); font-size: .85rem; margin-top: var(--space-3); }

/* ---- 질문 화면 ---- */
.bg-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}
.bg-topic-tag {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--bal-a);
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 3px 12px;
}
.bg-prog-text { color: var(--color-text-sub); font-variant-numeric: tabular-nums; }
.bg-prog-text b { color: var(--color-text); font-size: 1.05rem; }
.bg-progbar {
  height: 6px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
  margin-bottom: clamp(20px, 4vw, 32px);
}
.bg-progfill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--bal-a), var(--bal-b));
  transition: width .25s ease;
}

.bg-versus {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(14px, 3vw, 24px);
  align-items: stretch;
}
.bg-opt {
  font: inherit;
  cursor: pointer;
  min-height: clamp(160px, 26vw, 230px);
  padding: clamp(18px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  text-align: left;
  border-radius: var(--radius);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  transition: transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.bg-opt-badge {
  font-size: .8rem;
  font-weight: 700;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  flex: none;
}
.bg-opt-a .bg-opt-badge { background: var(--bal-a); }
.bg-opt-b .bg-opt-badge { background: var(--bal-b); }
.bg-opt-text {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
  word-break: keep-all;
}
.bg-opt-a:hover { border-color: var(--bal-a); background: var(--bal-a-weak); }
.bg-opt-b:hover { border-color: var(--bal-b); background: var(--bal-b-weak); }
.bg-opt-a.is-picked {
  border-color: var(--bal-a);
  background: var(--bal-a-weak);
  box-shadow: 0 0 0 3px var(--bal-a-weak);
  transform: scale(1.02);
}
.bg-opt-b.is-picked {
  border-color: var(--bal-b);
  background: var(--bal-b-weak);
  box-shadow: 0 0 0 3px var(--bal-b-weak);
  transform: scale(1.02);
}
.bg-vs {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-text-sub);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 560px) {
  .bg-versus { grid-template-columns: 1fr; }
  .bg-opt { min-height: 110px; }
  .bg-vs { width: 38px; height: 38px; font-size: .82rem; }
}

.bg-quiz-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: clamp(18px, 3vw, 28px);
}
.bg-back:disabled { opacity: .4; cursor: default; }
.bg-key-hint { color: var(--color-text-sub); font-size: .8rem; }
@media (max-width: 560px) { .bg-key-hint { display: none; } }

/* ---- 결과 화면 ---- */
.bg-result-card {
  position: relative;
  overflow: hidden;
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: clamp(26px, 5vw, 44px) clamp(20px, 4vw, 40px);
  background:
    radial-gradient(60% 80% at 0% 0%, var(--bal-a-weak), transparent 65%),
    radial-gradient(60% 80% at 100% 100%, var(--bal-b-weak), transparent 65%),
    var(--color-bg);
}
.bg-result-eyebrow {
  margin: 0;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .3em;
  color: var(--color-text-sub);
}
.bg-result-name {
  margin: 8px 0 4px;
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--bal-a);
  word-break: keep-all;
}
.bg-result-tagline {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif);
  font-size: 1.02rem;
  color: var(--color-text);
}
.bg-result-keywords {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.bg-keyword {
  font-size: .8rem;
  font-weight: 700;
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 999px;
  padding: 4px 12px;
}
.bg-result-desc {
  margin: 0 auto var(--space-5);
  max-width: 46ch;
  text-align: left;
  line-height: 1.75;
  color: var(--color-text);
}

/* 축 그래프 */
.bg-axes { display: grid; gap: 14px; max-width: 460px; margin: 0 auto; }
.bg-axis-labels {
  display: flex;
  justify-content: space-between;
  font-size: .85rem;
  margin-bottom: 4px;
}
.bg-axis-labels b { font-size: .95rem; }
.bg-axis-labels .is-win { color: var(--color-text); font-weight: 700; }
.bg-axis-labels .is-lose { color: var(--color-text-sub); }
.bg-axis-track {
  position: relative;
  height: 12px;
  border-radius: 999px;
  background: var(--bal-b-weak);
  overflow: hidden;
}
.bg-axis-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  background: var(--bal-a);
  border-radius: 999px 0 0 999px;
}
.bg-axis-track::after {
  content: "";
  position: absolute;
  left: 50%; top: -2px; bottom: -2px;
  width: 2px;
  background: var(--color-surface);
}
.bg-result-opposite {
  margin: var(--space-5) 0 0;
  font-size: .88rem;
  color: var(--color-text-sub);
}
.bg-result-opposite b { color: var(--bal-b); }

.bg-result-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-5);
}
.bg-result-actions .bg-btn-big { margin-top: 0; }
.bg-btn-sub { border-radius: var(--radius-sm); }
.bg-save-note {
  text-align: center;
  color: var(--color-text-sub);
  font-size: .82rem;
  margin: var(--space-3) 0 0;
}

.bg-recap { max-width: 620px; margin: var(--space-5) auto 0; }
.bg-recap summary {
  cursor: pointer;
  color: var(--color-text-sub);
  font-size: .9rem;
}
.bg-recap ul { margin: var(--space-3) 0 0; padding-left: 20px; }
.bg-recap li { margin-bottom: 6px; font-size: .92rem; }
.bg-recap li b { color: var(--bal-a); }
.bg-recap li.pick-b b { color: var(--bal-b); }

@media (prefers-reduced-motion: reduce) {
  .bg-opt, .bg-btn-big, .bg-progfill { transition: none; }
  .bg-opt.is-picked { transform: none; }
}