body{
  font-family:system-ui,-apple-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  margin:0;
  background:#f5f7fa;
  color:#222
}
h1{
  padding:1rem 2rem;
  background:#0d47a1;
  color:#fff;
  margin:0 0 1rem;
  font-weight:500
}
.page-header{
  padding:.75rem 0rem;
  font-weight:600
}
.diff-grid{
  display:flex;
  height:60vh
}
.pane{
  flex:1;
  padding:1rem;
  overflow:auto;
  white-space:pre-wrap;
  font-family:Consolas,Monaco,'Courier New',monospace;
  font-size:13px;
  line-height:1.45
}
.pane.old{
  background:#fffde7;
}
.pane.new{
  background:#e8f5e9
}
ins{
  background:#c8e6c9;
  text-decoration:none
}
del{
  background:#ffcdd2;
  text-decoration:none
}