/* Deep royal purple header (white text stays readable) */
:root, [data-md-color-scheme="default"], [data-md-color-scheme="slate"] {
  --md-primary-fg-color: #4A148C;
  --md-primary-fg-color--light: #6A1B9A;
  --md-primary-fg-color--dark: #38006B;
  --md-primary-bg-color: #FFFFFF;
  --md-primary-bg-color--light: rgba(255, 255, 255, 0.7);
}
.md-header, .md-tabs {
  background-color: #4A148C;
  color: #FFFFFF;
}