:root {
  --primary-color: #000000;        /* black */
  --secondary-color: #808080;      /* neutral grey */
  --heading-color: #1a1a1a;        /* dark grey for headings */
  --text-color: #ffffff;           /* white for main text */
  --transitions: 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}