/**
 * kai-bgm.css (v1) — 전 페이지 공통 BGM 토글 (운영 tournament_bgm.mp3)
 */
#bgm-toggle {
  position: fixed;
  left: 18px;
  bottom: 88px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(14, 14, 14, 0.88);
  border: 1px solid rgba(201, 169, 110, 0.45);
  color: rgba(245, 239, 224, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  z-index: 99998;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  padding: 0;
  margin: 0;
}

#bgm-toggle.show {
  display: flex;
}

#bgm-toggle:hover {
  background: rgba(14, 14, 14, 0.96);
  border-color: #c9a96e;
  color: #c9a96e;
}

#bgm-toggle.on {
  background: rgba(201, 169, 110, 0.18);
  color: #c9a96e;
  border-color: #c9a96e;
  box-shadow: 0 0 12px rgba(201, 169, 110, 0.35);
}

@media (max-width: 768px) {
  #bgm-toggle {
    left: 12px;
    bottom: calc(68px + env(safe-area-inset-bottom));
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  /* app_v1 구형 mob-nav (로비) */
  body:not(.hide-mobnav):not(.rebuild-has-mobnav) #bgm-toggle {
    bottom: calc(130px + env(safe-area-inset-bottom));
  }
}

body.auth-gate-active #bgm-toggle {
  display: none !important;
}