:root{
  --button-border-radius: 12px;
  --button-border-radius-ratio: 4;
  --button-border-radius-mini: 6px;
  --button-border-radius-small: 9px;
  --button-border-radius-large: 16px;
  --inputs-border-radius: 8px;
  --inputs-border-radius-ratio: 6;
  --thumb-border-radius: 10px;
  --thumb-border-radius-relative: 0.625;
  --course-content-border-radius: 7px;
  --course-content-border-radius-relative: 0.21875;
  --progress-border-radius: 11px;
  --progress-border-radius-ratio: 2.9;
}