.theme-high-contrast {
  color-scheme: dark;
  --bg:#000;
  --panel:#000;
  --panel-2:#111;
  --text:#fff;
  --muted:#d9d9d9;
  --accent:#ffff00;
  --accent-soft:#222;
  --error:#ffb3b3;
  --line:#fff;
  --success:#b3ffb3;
}
.theme-high-contrast button { border:2px solid #fff; }
.theme-high-contrast a { text-decoration: underline; }