body{
margin:0;
font-family:Arial,sans-serif;
background:#0f0f0f;
color:white;
}

button{
padding:12px 24px;
background:#00ffcc;
border:none;
cursor:pointer;
border-radius:6px;
font-weight:bold;
}

button:disabled{
opacity:0.5;
cursor:not-allowed;
}