/* Brontara design tokens — THE single source of truth for suite colour.
 * Created 2026-08-02 from the palette audit (website audit follow-on).
 *
 * Structure follows the standard UI colour-system roles:
 *   neutrals  -> canvas, elevated surfaces, borders, text ramp
 *   accent    -> ONE interactive colour (teal). CTAs/links/focus only.
 *   brand     -> violet. Identity, gradients, decoration. NEVER small text.
 *   semantic  -> status feedback. Always pair with an icon or text label.
 *
 * Every value is contrast-checked against --bg (#0f1117):
 *   --text 15.5:1 · --text-muted 7.4:1 · --text-dim 6.1:1 · --accent 10.1:1
 *   --brand 6.9:1 · --border-strong 3.2:1 (WCAG 1.4.11 UI components)
 * --brand-deep is 3.3:1 — large surfaces/buttons only, never body copy.
 *
 * Neutral ramp is SLATE (blue-grey), matching the product apps, so the
 * marketing site and the apps read as one product.
 */
:root {
  /* ── neutrals: 60% dominant + 30% structural ─────────────────────── */
  --bt-bg:            #0f1117;   /* canvas — deliberately not #000 */
  --bt-bg-elev:       #151a24;   /* cards, panels */
  --bt-bg-elev2:      #1a2030;   /* raised / hover surfaces */
  --bt-border:        #2a3142;   /* decorative hairlines */
  --bt-border-strong: #5a6480;   /* input/control boundaries — 3.21:1 */

  --bt-text:          #e8e8f0;   /* body — 15.48:1 */
  --bt-text-muted:    #94a3b8;   /* secondary — 7.36:1 */
  --bt-text-dim:      #8b93a8;   /* tertiary — 6.14:1 */

  /* ── accent: the 10%. Interactive elements ONLY ──────────────────── */
  --bt-accent:        #2dd4bf;   /* 10.14:1 */
  --bt-accent-hover:  #5eead4;
  --bt-accent-ink:    #04231f;   /* text ON accent — 8.92:1 */

  /* ── brand: identity / decoration ────────────────────────────────── */
  --bt-brand:         #a78bfa;   /* 6.93:1 — ok for large text */
  --bt-brand-deep:    #7c3aed;   /* 3.31:1 — surfaces only */
  --bt-brand-soft:    rgba(124, 58, 237, 0.12);

  /* ── semantic: always pair with icon/label, never colour alone ───── */
  --bt-success:       #34d399;
  --bt-warning:       #fbbf24;
  --bt-error:         #f87171;
  --bt-info:          #60a5fa;
}