/* Checkers — theme override on top of the shared arcade kit. */
:root { --accent: #f5a04e; }

#stage { background: #0c0f1e; aspect-ratio: 3 / 4; max-height: 80vh; }
@media (min-width: 760px) { #stage { aspect-ratio: 1 / 1; max-width: 560px; margin: 0 auto; } }

.opt-row { display: flex; gap: 7px; justify-content: center; flex-wrap: wrap; }
.opt {
  padding: 11px 17px;
  min-height: 46px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.opt.active { background: linear-gradient(135deg, #f5a04e, #d9812c); color: #22190a; border-color: transparent; }

.tool-bar {
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  gap: 6px;
  justify-content: center;
  z-index: 16;
}
.tool {
  flex: 1 1 0;
  max-width: 140px;
  min-height: 46px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
}
.tool:active { transform: scale(0.95); }
.tool:disabled { opacity: 0.35; cursor: default; }