body{
font-family:Arial;
margin:0;
background:#111;
color:white;
}

header{
background:black;
padding:20px;
text-align:center;
}

nav{
display:flex;
justify-content:center;
flex-wrap:wrap;
padding:10px;
background:#1a1a1a;
}

button{
padding:12px;
margin:5px;
border:none;
border-radius:10px;
background:#ff4d00;
color:white;
font-weight:bold;
}

.page{
padding:15px;
}

.card{
background:#1e1e1e;
padding:15px;
border-radius:12px;
margin-bottom:15px;
}

.hidden{
display:none;
}

input,select,textarea{
width:100%;
padding:12px;
margin-top:10px;
border:none;
border-radius:8px;
}

iframe{
border-radius:12px;
}