/*
 * Hadron brand palette for Material for MkDocs.
 *
 * Source of truth: specs::cor:brd:010:01 — "Brand color palette".
 *   Primary (cool)  — sky-blue -> cerulean -> deep space blue: identity + chrome
 *   Accent  (warm)  — amber -> tiger orange: CTA / attention, used sparingly
 *   Neutral         — grays (Material's stock scale, left untouched)
 *
 * Delivered the way the spec prescribes: by overriding the framework's own
 * colour variables (primary/accent slots) rather than adding bespoke tokens.
 * A slot's name is a role, not a hue — Material's "primary" here renders as
 * Hadron cerulean, not indigo.
 *
 * The anchor hexes below are the tunable snapshot recorded in the spec
 * ("Refreshing Summer Fun"). Retune here without touching the contract.
 */

:root {
  --hadron-sky:      #8ecae6; /* primary  light tint      (~200) */
  --hadron-cerulean: #219ebc; /* primary  mid/interactive (~400) */
  --hadron-deep:     #023047; /* primary  deep/dark surf. (~900) */
  --hadron-amber:    #ffb703; /* accent   warm            (~400) */
  --hadron-orange:   #fb8500; /* accent   warm hover      (~500) */

  /* A deeper cyan stop for body links — interpolated toward the deep anchor
   * so link text clears WCAG AA (4.5:1) on white. Role: primary/interactive. */
  --hadron-link:     #0e7490;
}

/* Light theme -------------------------------------------------------------- */
[data-md-color-scheme="default"] {
  --md-primary-fg-color:        var(--hadron-cerulean);
  --md-primary-fg-color--light: var(--hadron-sky);
  --md-primary-fg-color--dark:  var(--hadron-deep);
  --md-primary-bg-color:        #ffffff;   /* logo/title/icons on the header */
  --md-primary-bg-color--light: #ffffffb3;

  --md-accent-fg-color:         var(--hadron-orange);

  --md-typeset-a-color:         var(--hadron-link);
}

/* Dark theme (slate) ------------------------------------------------------- */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color:        var(--hadron-cerulean);
  --md-primary-fg-color--light: var(--hadron-sky);
  --md-primary-fg-color--dark:  var(--hadron-deep);
  --md-primary-bg-color:        #ffffff;

  --md-accent-fg-color:         var(--hadron-orange);

  /* Lighter sky-blue links for contrast on dark surfaces. */
  --md-typeset-a-color:         var(--hadron-sky);
}