/* Tier 3 per-book theme block
   Book:   "Your sibling and ADHD"  (series: sibling)
   Hue:    ADHD condition teal, so this book reads as part of the Neurodivergence shelf.
           data-condition=neuro-adhd (Tier 2) supplies this; this Tier-3 block re-asserts it
           so the sibling series (structure-only, no hue) does not fall back to a series colour.
   Link AFTER family.css. body[data-book] (0,1,1) beats Tier 2 (0,1,0).
   AA: white on #0F766E = 5.48:1; #115E59 on white = 7.58:1. */
body[data-book] {
  --accent:          #0F766E;
  --accent-strong:   #115E59;
  --accent-soft:     #E3F2EE;
  --accent-contrast: #FFFFFF;
}