:root {
  /* ── Base: pure white ─────────────────────────── */
  --color-bg:             #FFFFFF;
  --color-bg-alt:         #F2F2F0;          /* subtle section break */
  --color-surface:        #FFFFFF;          /* card / tile surface */
  --color-surface-raised: #FFFFFF;

  /* ── Ink: rich deep navy, no gray wash ──────── */
  --color-ink:            #050D1F;          /* deepest navy — headings, hero bg */
  --color-ink-secondary:  #0A1628;          /* primary text on light */
  --color-ink-tertiary:   #0A1628;          /* body copy — same dark, no fade */
  --color-ink-muted:      #0A1628;          /* labels — keep dark, not gray */

  /* ── Accent: warm amber ───────────────────────── */
  --color-accent:         #C8641A;
  --color-accent-hover:   #A84F12;
  --color-accent-subtle:  rgba(200,100,26,0.07);
  --color-accent-border:  rgba(200,100,26,0.25);

  /* ── Borders ──────────────────────────────────── */
  --color-border:         rgba(5,13,31,0.12);
  --color-border-strong:  rgba(5,13,31,0.28);

  /* ── Hero / dark sections ─────────────────────── */
  --color-hero-bg:        #050D1F;          /* richest navy */
  --color-hero-text:      #FFFFFF;
  --color-hero-secondary: rgba(255,255,255,0.75);
  --color-hero-border:    rgba(255,255,255,0.10);

  /* ── Typography ───────────────────────────────── */
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  /* ── Scale ────────────────────────────────────── */
  --max-width:    1160px;
  --section-py:   104px;
  --radius:       0px;    /* hard edges throughout */
  --radius-lg:    0px;
  --radius-xl:    0px;

  /* ── Shadow ───────────────────────────────────── */
  --shadow-card:       0 1px 3px rgba(5,13,31,0.06), 0 0 0 1px rgba(5,13,31,0.08);
  --shadow-card-hover: 0 6px 24px rgba(5,13,31,0.10), 0 0 0 1px rgba(5,13,31,0.12);
  --shadow-tile:       0 0 0 1px rgba(5,13,31,0.10);
  --shadow-tile-hover: 0 6px 28px rgba(5,13,31,0.12), 0 0 0 1px rgba(200,100,26,0.30);

  /* ── Motion ───────────────────────────────────── */
  --ease:          cubic-bezier(0.22, 1, 0.36, 1);
  --transition:    0.18s ease;
  --transition-md: 0.30s var(--ease);
}