*{
margin:0;
padding:0;
box-sizing:border-box;
}


body{

height:100vh;

background:
radial-gradient(circle,#25205c,#080a12);

color:white;

font-family:Arial;

display:flex;

justify-content:center;

align-items:center;

text-align:center;

}


canvas{

margin-top:20px;

background:#02040c;

border:3px solid #00eaff;

border-radius:20px;

box-shadow:
0 0 30px #00eaff;

max-width:95%;

}


button{

margin-top:20px;

padding:12px 30px;

border:none;

border-radius:15px;

cursor:pointer;

font-size:18px;

}



.back{

position:absolute;

top:25px;

left:25px;

color:white;

text-decoration:none;

}


#message{

color:#00ff99;

}