body {
  margin:0;
  font-family: Arial;
  background:#0d1117;
  color:white;
}

header {
  padding:15px;
  background:#161b22;
}

.container {
  display:flex;
  height:calc(100vh - 60px);
}

.left { flex:2; padding:10px; }
.middle { flex:1; padding:10px; overflow:auto; }
.right { flex:1; padding:10px; }

#chart {
  height:100%;
}

button {
  display:block;
  margin:5px 0;
  padding:10px;
  width:100%;
  cursor:pointer;
}

.buy { background:#238636; }
.sell { background:#da3633; }

.order-row, .trade-row {
  display:flex;
  justify-content:space-between;
  font-size:12px;
}