/* Ambient layer: particle background + audio controls for all pages */
:root {
  --ambient-border:     rgba(255,255,255,0.05);
  --ambient-accent-dim: rgba(0,229,160,0.06);
}

/* ── Canvas BG ── */
#scene-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Mobile audio hint — shown before first interaction on touch devices ── */
#audio-hint {
  position: fixed;
  bottom: 70px;
  right: 18px;
  z-index: 500;
  font-family: var(--mono, monospace);
  font-size: 9px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted, #4a4a5e);
  pointer-events: none;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.6s;
}
@media (hover: none) {
  #audio-hint:not(.audio-hint-hidden) {
    opacity: 0.5;
    animation: hint-pulse 3s ease-in-out 1.5s infinite alternate;
  }
}
@keyframes hint-pulse {
  from { opacity: 0.3; }
  to   { opacity: 0.6; }
}
#audio-hint.audio-hint-hidden {
  opacity: 0 !important;
  animation: none !important;
}

/* ── Audio toggle ── */
#audio-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--ambient-border);
  background: rgba(8,8,13,0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--text-muted, #4a4a5e);
  transition: border-color 0.25s, color 0.25s, background 0.25s, opacity 0.25s;
  opacity: 0.55;
}
#audio-toggle:hover,
#audio-toggle:focus-visible {
  border-color: var(--accent, #00e5a0);
  color: var(--accent, #00e5a0);
  background: var(--ambient-accent-dim);
  opacity: 1;
  outline: none;
}
#audio-toggle.muted { opacity: 0.3; }
#audio-toggle.muted:hover,
#audio-toggle.muted:focus-visible { opacity: 0.7; }
#audio-toggle:not(.audio-unlocked) {
  animation: audio-hint 3s ease-in-out infinite;
}
@keyframes audio-hint {
  0%,100% { opacity: 0.55; }
  50%      { opacity: 0.85; border-color: rgba(0,229,160,0.25); }
}
#audio-toggle svg { width: 16px; height: 16px; fill: currentColor; pointer-events: none; }
#audio-toggle.audio-unlocked:not(.muted) {
  animation: heartbeat 1.8s ease-in-out infinite;
  opacity: 0.8;
}
#audio-toggle.audio-unlocked:not(.muted):hover,
#audio-toggle.audio-unlocked:not(.muted):focus-visible {
  opacity: 1;
  animation-play-state: paused;
}
#audio-toggle.audio-unlocked:not(.muted)::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid rgba(0,229,160,0.55);
  animation: pulse-ring 1.8s ease-out infinite;
  pointer-events: none;
}
@keyframes heartbeat {
  0%,100% { transform: scale(1); }
  6%       { transform: scale(1.09); }
  16%      { transform: scale(1); }
  24%      { transform: scale(1.05); }
  38%      { transform: scale(1); }
}
@keyframes pulse-ring {
  0%   { transform: scale(1);   opacity: 0.6; }
  80%  { transform: scale(1.9); opacity: 0; }
  100% { transform: scale(1.9); opacity: 0; }
}
.audio-icon-off { display: none; }

/* ── SFX toggle ── */
#sfx-toggle {
  position: fixed;
  bottom: 70px;
  right: 24px;
  z-index: 500;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--ambient-border);
  background: rgba(8,8,13,0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--text-muted, #4a4a5e);
  transition: border-color 0.25s, color 0.25s, background 0.25s, opacity 0.25s;
  opacity: 0.4;
}
#sfx-toggle:hover,
#sfx-toggle:focus-visible {
  border-color: var(--accent, #00e5a0);
  color: var(--accent, #00e5a0);
  background: var(--ambient-accent-dim);
  opacity: 0.9;
  outline: none;
}
#sfx-toggle.sfx-off { opacity: 0.25; }
#sfx-toggle.sfx-off:hover,
#sfx-toggle.sfx-off:focus-visible { opacity: 0.7; }
#sfx-toggle svg { width: 15px; height: 15px; fill: currentColor; pointer-events: none; }

/* ── Pixel burst animation ── */
@keyframes btn-sfx-burst {
  0%   { box-shadow: 0 0 0 0 rgba(0,229,160,0.35); }
  60%  { box-shadow: 0 0 0 8px rgba(0,229,160,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,229,160,0); }
}
.btn-sfx-flash { animation: btn-sfx-burst 0.35s ease-out forwards; }

@media (prefers-reduced-motion: reduce) {
  #audio-toggle,
  #audio-toggle::after,
  #sfx-toggle { animation: none !important; }
}

/* ── Theme / song indicator ── */
#theme-indicator {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 500;
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono, monospace);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted, #4a4a5e);
  background: rgba(8,8,13,0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--ambient-border);
  border-radius: 20px;
  padding: 6px 13px;
  cursor: pointer;
  user-select: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.45s, transform 0.45s, border-color 0.3s, color 0.3s;
}
#theme-indicator.visible {
  opacity: 0.5;
  transform: translateY(0);
}
#theme-indicator:hover,
#theme-indicator:focus-visible {
  opacity: 1;
  border-color: var(--accent, #00e5a0);
  color: var(--text-dim, #7a7a8e);
  outline: none;
}
.theme-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent, #00e5a0);
  flex-shrink: 0;
  transition: background 0.6s;
}

/* ── 2:59 AM wager theme — crimson accent ── */
body.theme-wager .theme-dot { background: #c0392b; }
body.theme-wager #theme-indicator:hover,
body.theme-wager #theme-indicator:focus-visible { border-color: #c0392b; }
body.theme-wager #audio-toggle:hover,
body.theme-wager #audio-toggle:focus-visible { border-color: #c0392b; color: #c0392b; background: rgba(192,57,43,0.08); }