/* ATHENA — design tokens
   Design System v1.0 (2026-06-13). Parchment, ink, brass — a scholar's
   catalogue that happens to be software. Built from "Athena Design System.dc.html".
   Newsreader for what a person reads; IBM Plex Mono for what a machine assigns.
   Never invent values outside this file. */

:root {
  /* ---- Ground & surfaces ---- */
  --a-ivory:        #FBF8EF;  /* paper — cards & most fills (body ground is the gradient in site.css) */
  --a-ivory-deep:   #F0E8D5;  /* vellum — signature raised panels (specimen, oracle) */
  --a-ivory-shade:  #E4D8B4;  /* pressed / inner frames & borders on panels */
  --a-marble-vein:  #DCCFA6;  /* faintest structural lines, section borders */

  --a-ground:       #F4EEDF;  /* page ground (radial-lit toward paper at the top) */

  /* ---- Ink ---- */
  --a-ink:          #1C1813;  /* warm near-black — text & primary geometry */
  --a-ink-soft:     #4F4838;  /* secondary text */
  --a-ink-faint:    #847A65;  /* captions, meta, mono annotations */

  /* ---- Brass (the single antique gold) ---- */
  --a-gold:         #8A6A2B;  /* primary brass — section marks, accents, construction layer */
  --a-gold-bright:  #C39B40;  /* luminous brass — hairlines, rules, ornament */
  --a-gold-pale:    #E3D6AE;  /* washed brass — seal backgrounds, ::selection */
  --a-bronze:       #6E5320;  /* deep brass — hover / pressed, AA on paper */

  /* ---- Verdigris — confirmed knowledge ONLY ---- */
  --a-verdigris:      #3C6B5C; /* oxidized bronze. "in force": owned + verified, still holding. Never decoration. */
  --a-verdigris-deep: #2F5A4C; /* verdigris text on pale grounds */

  /* ---- Declarative ---- */
  --a-decline:      #A35A2B;  /* terracotta. used ONLY for "won't guess" / refusal moments */

  /* ---- Type ---- */
  --a-font-inscription: 'IBM Plex Mono', ui-monospace, monospace;        /* eyebrows, buttons, chips, HUD, labels */
  --a-font-display:     'Newsreader', Georgia, serif;                    /* display headlines */
  --a-font-body:        'Newsreader', Georgia, serif;                    /* running text */
  --a-font-mono:        'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace; /* IDs, coords, raw views */

  --a-track-wide:   0.22em;   /* inscription / mono-label letterspacing */
  --a-track-mid:    0.12em;

  /* ---- Rhythm ---- */
  --a-measure:      62ch;
  --a-radius:       2px;      /* near-square. the catalogue favours the sharp corner. */
  --a-hairline:     1px solid var(--a-gold-bright);
  --a-hairline-faint: 1px solid var(--a-marble-vein);

  /* ---- Motion ---- */
  /* settles like a page turning, not a spring releasing */
  --a-ease:         cubic-bezier(0.22, 1, 0.36, 1);
  --a-reveal-dur:   0.9s;
}