.start-actions { display: grid; grid-template-columns: minmax(0,1fr) 82px; align-items: stretch; gap: 8px; margin-top: 10px; }
.selection-content .start-actions .primary-button { margin-top: 0; }
.bgm-toggle { display: flex; align-items: center; justify-content: center; gap: 4px; min-width: 44px; min-height: 44px; padding: 6px; border: 1px solid #d9e3dd; border-radius: 14px; color: #62716d; background: #f1f5f1; font-size: 11px; font-weight: 750; cursor: pointer; }
.bgm-toggle > span:first-child { font-size: 19px; }
.bgm-toggle[aria-pressed="true"] { color: #1f6454; border-color: #9acdb6; background: #e3f4ea; }
.bgm-toggle[data-state="error"], .bgm-toggle[data-state="blocked"] { color: #8a5b1f; border-color: #e3c897; background: #fff3dc; }
.bgm-toggle:focus-visible { outline: 3px solid #4c7cf3; outline-offset: 3px; }
.game-topbar { grid-template-columns: auto auto minmax(0,1fr) auto auto; }
.bgm-toggle-game { flex-direction: column; width: 44px; gap: 0; padding: 3px; border-color: rgba(255,255,255,.18); color: #aebbc6; background: rgba(255,255,255,.08); font-size: 8px; }
.bgm-toggle-game[aria-pressed="true"] { color: #9bf0c4; border-color: rgba(155,240,196,.4); background: rgba(54,201,143,.14); }
.bgm-toggle-game[data-state="error"], .bgm-toggle-game[data-state="blocked"] { color: #ffdc95; background: rgba(255,196,86,.12); }
@media (max-width: 560px) and (max-height: 720px) { .start-actions { margin-top: 8px; } }