body{
background:#0f172a;
color:#e5e7eb;
font-family:Arial;
margin:0;
padding:20px;
}
.kutu{
max-width:400px;
margin:50px auto;
background:#020617;
padding:20px;
border-radius:8px;
}
input,button{
width:100%;
padding:10px;
margin-top:10px;
}
footer{
margin-top:40px;
text-align:center;
color:#94a3b8;
}