body{
    background-color:#1a1a1a;
    color:#ffd700;
    font-family:Arial,sans-serif;
}
header{
    padding:10px;
    background-color:#333;
    display:flex;
    align-items:center;
    justify-content:space-between;
}
header h1{
    color:#ffd700;
}
.container{
    padding:10px;
}
canvas{
    background-color:#0d0d0d;
    border:1px solid #555;
}
.signal-buy{
    color:#00ff00;
}
.signal-sell{
    color:#ff4500;
}
.legend{
    display:flex;
    justify-content:space-around;
    color:#ffd700;
    margin-top:5px;
}
.select-controls{
    margin:10px 0;
}
select{
    padding:5px;
    background-color:#333;
    color:#ffd700;
    border:1px solid #555;
}