:root{
  --button-border-radius: 17px;
  --button-border-radius-ratio: 2.8;
  --button-border-radius-mini: 9px;
  --button-border-radius-small: 13px;
  --button-border-radius-large: 23px;
  --inputs-border-radius: 24px;
  --inputs-border-radius-ratio: 2;
  --thumb-border-radius: 16px;
  --thumb-border-radius-relative: 1;
  --course-content-border-radius: 32px;
  --course-content-border-radius-relative: 1;
  --progress-border-radius: 16px;
  --progress-border-radius-ratio: 2;
}