body{margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;font-family:sans-serif;gap:12px}.big-button{border:none;background:transparent;padding:0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;width:192px;height:192px}.big-button:disabled{cursor:not-allowed;opacity:.6}.big-button-img{display:block;width:100%;height:100%;object-fit:contain;user-select:none;-webkit-user-drag:none}.upgrade-button{display:flex;flex-direction:column;align-items:flex-start;width:220px;margin-top:10px;padding:8px}.upgrade-title{font-weight:700;margin-bottom:4px}.upgrade-row{display:flex;justify-content:space-between;width:100%}.upgrade-price{font-size:14px}.upgrade-count{font-size:20px;font-weight:700}