.xc-quiz{font-family:inherit;max-width:1000px;margin:24px auto;color:#111}.xc-question{font-size:20px;font-weight:700;margin:0 0 18px;line-height:1.45;color:#111}.xc-stage{position:relative;height:600px;min-height:480px;overflow:hidden;border:1px solid #e2e2e2;border-radius:18px;background:#fff;touch-action:none}.xc-central{position:absolute;z-index:5;left:50%;top:50%;transform:translate(-50%,-50%);width:170px;height:170px;border-radius:50%;background:#fff;border:3px solid #111;color:#111;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:800;font-size:22px;padding:18px;box-sizing:border-box;box-shadow:0 6px 18px rgba(0,0,0,.12);pointer-events:none}.xc-bubble-layer{position:absolute;inset:0}.xc-bubble{position:absolute;z-index:10;width:132px;min-height:132px;padding:16px;border-radius:50%;box-sizing:border-box;display:flex;align-items:center;justify-content:center;text-align:center;color:#111;font-weight:700;font-size:17px;line-height:1.2;border:3px solid transparent;box-shadow:0 5px 15px rgba(0,0,0,.12);cursor:grab;user-select:none;-webkit-user-select:none;touch-action:none;transition:border-color .12s,box-shadow .12s,transform .12s}.xc-bubble.dragging{cursor:grabbing;transform:scale(1.04);z-index:20;box-shadow:0 12px 24px rgba(0,0,0,.18)}.xc-bubble.overlap{border-color:#111;box-shadow:0 0 0 4px rgba(0,0,0,.12),0 10px 22px rgba(0,0,0,.18)}.xc-bubble.correct{border-color:#148a42;box-shadow:0 0 0 4px rgba(20,138,66,.25)}.xc-bubble.wrong{border-color:#d63638;box-shadow:0 0 0 4px rgba(214,54,56,.22)}.xc-bubble.missed{opacity:.65;border:3px dashed #d63638}.xc-controls{display:flex;gap:10px;justify-content:center;margin:18px 0}.xc-controls button{padding:11px 20px;border:1px solid #111;border-radius:8px;background:#111;color:#fff;cursor:pointer;font-weight:700}.xc-controls .xc-reset{background:#fff;color:#111}.xc-result{text-align:center;font-size:17px;color:#111}.xc-explanation{margin:14px auto 0;max-width:760px;padding:14px;border-radius:10px;background:#f5f5f5;text-align:left;line-height:1.5}.xc-quiz *{box-sizing:border-box}@media(max-width:700px){.xc-stage{height:72vh;min-height:500px}.xc-central{width:135px;height:135px;font-size:18px}.xc-bubble{width:108px;min-height:108px;font-size:14px;padding:12px}.xc-question{font-size:18px}.xc-controls{position:sticky;bottom:8px;z-index:30}}