/* Bubble Shooter — Neon Arcade theme */
body.in-game {
  margin: 0;
  background:
    radial-gradient(ellipse at top, rgba(168, 85, 247, 0.10) 0%, transparent 60%),
    #050818;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 56px 16px 16px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  color: #e8eaff;
}
.bs-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
}
#game {
  background: #0a0e27;
  border: 1px solid rgba(168, 85, 247, 0.35);
  border-radius: 14px;
  box-shadow:
    0 0 60px rgba(168, 85, 247, 0.18),
    0 0 24px rgba(0, 245, 255, 0.08) inset;
  cursor: crosshair;
  max-width: min(95vw, 600px);
  width: 100%;
  height: auto;
  aspect-ratio: 600 / 720;
  display: block;
}
.bs-help {
  color: #9aa0c5;
  font-size: 13px;
  text-align: center;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(168, 85, 247, 0.2);
  border-radius: 12px;
  backdrop-filter: blur(8px);
}
.bs-key {
  display: inline-block;
  padding: 2px 8px;
  margin: 0 2px;
  background: rgba(168, 85, 247, 0.18);
  border: 1px solid rgba(168, 85, 247, 0.4);
  border-radius: 5px;
  color: #00f5ff;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  font-weight: 700;
}
@media (max-width: 640px) {
  body.in-game { padding-top: 48px; }
  .bs-help { font-size: 11px; padding: 6px 12px; }
}