*{
    box-sizing:border-box;
    font-family:Arial,Helvetica,sans-serif;
}


body{

    margin:0;
    min-height:100vh;

    display:flex;
    justify-content:center;
    align-items:center;

    background:linear-gradient(135deg,#6a11cb,#2575fc);

    color:white;
}


.game-container{

    width:90%;
    max-width:600px;

    background:white;
    color:#222;

    padding:30px;

    border-radius:25px;

    text-align:center;

    box-shadow:0 10px 30px rgba(0,0,0,.3);

}


h1{

    color:#2575fc;

}


#reactionBox{

    height:250px;

    margin:25px 0;

    border-radius:20px;

    background:#333;

    display:flex;

    justify-content:center;

    align-items:center;

    color:white;

    font-size:25px;

    font-weight:bold;

    cursor:pointer;

}


button{

    padding:15px 35px;

    border:none;

    border-radius:50px;

    font-size:18px;

    font-weight:bold;

    cursor:pointer;

    background:linear-gradient(45deg,cyan,magenta);

}


button:hover{

    transform:scale(1.05);

}