body{background:#000;font-size:8px}.App{font-family:Arial,sans-serif;padding:20px;color:#fff;text-align:center;display:flex;flex-direction:column;align-items:center}.control-panel{display:flex;justify-content:space-between;gap:4px;margin-top:0}button{background-color:#4caf50;color:#fff;border:none;padding:6px 16px;font-size:14px;cursor:pointer;border-radius:5px;transition:background-color .3s,transform .2s}button:hover{background-color:#45a049}button:active{transform:scale(.98)}input[type=number]{border:1px solid #ccc;border-radius:5px}button{display:inline-block;margin:0}