/* CM-RG · Archipelago — color tokens
   Palette lifted from the brand's engraved nautical-chart illustrations:
   aged parchment grounds, navy drawing ink, vermillion survey accents,
   faded sea-wash blue, brass instruments. */

:root {
  /* — Paper (grounds) — */
  --paper-0: #FAF5E8;   /* lightest sheet — cards laid on the chart */
  --paper-1: #F4EBD5;   /* main parchment page ground */
  --paper-2: #EDE1C3;   /* aged panel / aside / table stripe */
  --paper-3: #E3D4AC;   /* deep vellum — footers, hover wells */

  /* — Ink (navy drawing ink) — */
  --ink-1: #22395C;     /* primary ink — headings, body, line work */
  --ink-2: #44597E;     /* secondary ink — supporting text */
  --ink-3: #7186A6;     /* faint ink — captions, hairline figures */

  /* — Accent (vermillion survey ink) — */
  --vermillion-1: #BF4F2C;  /* compass points, links, distance labels */
  --vermillion-2: #A23F20;  /* hover / pressed vermillion */
  --vermillion-3: #E2BBA4;  /* faint vermillion — underlines, ticks */

  /* — Supporting hues — */
  --sea-blue: #8BA3C7;      /* faded watercolor wash around islands */
  --sea-blue-deep: #5B779F; /* survey-B dashed lines, water hatching */
  --brass: #A8884F;         /* instruments, rare gilded detail */

  /* — Lines on paper — */
  --line-graticule: #D9CBA6; /* faint background grid */
  --line-rule: #C5B68D;      /* hairline rules, table borders */
  --line-frame: #22395C;     /* chart frame — same as ink-1 */

  /* — Semantic aliases — */
  --surface-page: var(--paper-1);
  --surface-card: var(--paper-0);
  --surface-inset: var(--paper-2);
  --surface-footer: var(--paper-3);

  --text-heading: var(--ink-1);
  --text-body: var(--ink-1);
  --text-secondary: var(--ink-2);
  --text-caption: var(--ink-3);
  --text-accent: var(--vermillion-1);
  --text-inverse: var(--paper-0);

  --link: var(--vermillion-1);
  --link-hover: var(--vermillion-2);

  --border-card: var(--line-rule);
  --border-strong: var(--ink-1);

  --focus-ring: var(--vermillion-1);

  /* — Semantic status (used sparingly, in chart vocabulary) — */
  --status-agree: #5F7A4E;     /* mossy green — agreement, "trust here" */
  --status-diverge: #BF4F2C;   /* vermillion — divergence, attention */
  --status-neutral: var(--ink-3);
}