*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial,sans-serif;
}

body{
background:#111;
color:white;
}

.home{
display:flex;
flex-direction:column;
justify-content:center;
align-items:center;
height:100vh;
}

h1{
margin-bottom:40px;
}

.groups{
display:flex;
flex-direction:column;
gap:20px;
width:600px;
max-width:90%;
}

.groups button{
padding:20px;
font-size:18px;
cursor:pointer;
border:none;
border-radius:10px;
}

.back{
position:fixed;
top:10px;
left:10px;
z-index:999;
padding:10px 15px;
}

.grid{
display:grid;
grid-template-columns:1fr 1fr;
grid-template-rows:1fr 1fr;
height:100vh;
width:100vw;
gap:2px;
background:black;
}

.tile{
position:relative;
overflow:hidden;
}

.tile iframe{
width:100%;
height:100%;
border:none;
}

.label{
position:absolute;
top:10px;
left:10px;
background:rgba(0,0,0,.7);
padding:5px 10px;
border-radius:5px;
font-size:14px;
}