body{margin:0;overflow:hidden}canvas{display:block}.label{pointer-events:none;font-family:sans-serif;font-size:18px;font-weight:700;text-shadow:0 0 12px rgb(20,20,20),0 0 6px black}#LevelInfoPanel{position:fixed;top:0;left:50%;transform:translate(-50%);z-index:1000;padding:10px;border-radius:0 0 8px 8px;background:#fff;font-family:sans-serif;font-size:24px;color:#333}#collapseOverviewBtn{position:fixed;left:50%;top:50%;z-index:1000;padding:8px 10px;border-radius:50%;background:#fff;border:none;cursor:pointer;font-weight:600;transform:translate(-50%,-50%)}#labelsOverview{position:absolute;top:0;left:0;width:calc(50% - 5px);height:100%;overflow:hidden}#labelsMain{position:absolute;top:0;right:0;width:calc(50% - 5px);height:100%;pointer-events:auto;overflow:hidden}@media(max-aspect-ratio:1/1){#labelsOverview{top:0;width:100%;height:calc(50% - 5px)}#labelsMain{top:calc(50% + 5px);left:0;width:100%;height:calc(50% - 5px)}}.line-toggle{width:20px;height:20px;border-radius:50%;border:none;cursor:pointer;pointer-events:auto}#solvedOverlay{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2000;padding:24px 32px;border-radius:12px;background:#000c;text-align:center;font-family:Arial,sans-serif;display:none}#solvedMessage{font-size:48px;font-weight:700;margin-bottom:16px;line-height:1;color:#fff}#nextLevelBtn{padding:12px 24px;font-size:24px;border:none;border-radius:8px;background:#2196f3;color:#fff;cursor:pointer}.error-toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#c50000;color:#fff;padding:16px 24px;border-radius:8px;font-family:sans-serif;font-size:18px;box-shadow:0 4px 12px #00000080;animation:fadeInOut 5s ease-in-out;text-align:center;z-index:1002}@keyframes fadeInOut{0%{opacity:0;transform:translate(-50%,20px)}10%{opacity:1;transform:translate(-50%)}90%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,20px)}}#tutorialHelp{position:fixed;bottom:0;left:50%;transform:translate(-50%);z-index:1000;padding:16px 24px;border-radius:16px 16px 0 0;background:#000c;color:#fff;font-family:sans-serif;font-size:18px;width:min(1000px,80%);text-align:center}#helpBtn{position:fixed;top:12px;right:12px;width:40px;height:40px;border-radius:50%;background:#1976d2;color:#fff;border:none;box-shadow:0 2px 6px #0000004d;cursor:help;font-size:24px;font-weight:700;z-index:999}#helpPanel{z-index:1001;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#202020;border:4px solid #fff;padding:16px 32px;border-radius:16px;max-width:600px;font-family:sans-serif;color:#fff;font-size:18px}#closeHelpBtn{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;background:#e53935;color:#fff;border:none;box-shadow:0 2px 6px #0000004d;cursor:pointer;font-size:20px;font-weight:700}