/* =========================================================
   Theme: Warm Paper & Brass (light variant, default)
   Feel: an old astronomy book in a reading lamp's glow.
   Cream paper, deep antique brass, warm near-black ink.
   Same brass identity as the dark theme; lifted into daylight.
   Loaded into :root so this is the default; the dark
   companion (Twilight) overrides via html.theme-twilight.
   ========================================================= */
:root {
  --surface-page:     #F1E8D7;
  --surface-section:  #e9dfc9;
  --surface-raised:   #FFFBF2;
  --surface-muted:    #DCD0B6;

  --text-primary:     #1F1916;
  --text-body:        #3A332C;
  --text-muted:       #a38129;
  --text-dim:         #98907F;

  --accent:           #bd851b;
  --accent-hover:     #E2A023;
  --accent-subtle:    rgba(139, 105, 40, 0.10);
  --accent-contrast:  #FAF5EC;

  --border-subtle:    rgba(31, 25, 22, 0.10);
  --border-strong:    rgba(31, 25, 22, 0.22);

  --graph-color:      rgba(60, 45, 30, 0.55);

  --nav-bg:           rgba(252, 248, 240, 1.0);

  --hrule-thin:       rgba(0,0,0, 0.1);

  --section-callout-bright-1: #efe2a6;

  --accordion-active-tab-bg: #e9c787;
  --accordion-active-tab-fg: #3A2A10;
  --accordion-nav-bg: #DCD0B6;
}