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


body{

min-height:100vh;

background:
linear-gradient(#050816,#10184a);

color:white;

font-family:Arial,sans-serif;

display:flex;

justify-content:center;

align-items:center;

text-align:center;

overflow:hidden;

}



main{

width:95%;

}



h1{

font-size:45px;

text-shadow:
0 0 15px #00eaff;

}



canvas{

margin-top:20px;

background:#02040c;

border:3px solid #00eaff;

border-radius:20px;

box-shadow:
0 0 30px #00eaff55;

max-width:95%;

}



button{

margin-top:20px;

padding:12px 35px;

border:none;

border-radius:15px;

font-size:18px;

cursor:pointer;

background:#00eaff;

}



.back{

position:absolute;

top:25px;

left:25px;

color:white;

text-decoration:none;

}



#message{

margin-top:15px;

color:#00ff99;

font-size:25px;

text-shadow:
0 0 15px #00ff99;

}