body{display:flex;justify-content:center;align-items:center;height:100vh;flex-direction:column}.button-container{display:flex;flex-direction:column;align-items:center}button{width:200px;padding:15px;margin:10px;border:none;border-radius:25px;background:linear-gradient(45deg,#6a11cb,#2575fc);color:#fff;font-size:16px;cursor:pointer;transition:all 0.3s ease}button:hover{transform:scale(1.1);opacity:.9}button:disabled{background:gray;cursor:not-allowed}.timer{font-size:18px;color:red;margin-top:5px}