body{
margin:0;
font-family:Arial;
color:#e6eeff;
overflow:hidden;
}

#bg{
position:fixed;
width:100%;
height:100%;
object-fit:cover;
z-index:-2;
filter:brightness(0.4);
}

.overlay{
position:fixed;
inset:0;
background:radial-gradient(circle at 30% 30%,rgba(0,255,170,0.1),transparent 50%);
z-index:-1;
}

.topbar{
display:flex;
justify-content:space-between;
padding:15px;
border-bottom:1px solid #222;
}

.grid{
display:grid;
grid-template-columns:240px 1fr 300px;
height:100vh;
}

.panel{
padding:15px;
background:rgba(0,0,0,0.5);
border:1px solid #222;
overflow:auto;
}

button{
width:100%;
padding:10px;
margin-top:10px;
background:#00ff9d;
border:none;
cursor:pointer;
font-weight:600;
}

.card{
padding:10px;
margin-top:10px;
border:1px solid #333;
}

.simbox{
margin-top:20px;
padding:20px;
border:1px solid #333;
background:#0a0f18;
}