:root {
  --main-background: #0d1117;
  --header-background: #161b22;
  --footer-background: #090d11;
  --card-background: #21262d;
  --text-main: #c9d1d9;
  --text-muted: #8b949e;
  --brand-color: #58a6ff;
  --brand-hover: #1f6feb;
  --brand-contrast: #ffffff;
  --border-color: #30363d;
  --accent-color: #3fb950;
}