.case-shell{border:1px solid #e5e7eb;border-radius:.75rem;background:#fff;overflow:hidden}.case-mono{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9rem;line-height:1.65}.case-status{background:#fcfcfc;color:#4b5563}.case-shell textarea{tab-size:4}.case-shell button:disabled{cursor:not-allowed;opacity:.45}.case-result[hidden]{display:none}