:root {
  /* ===== COLORS (Brand OS §9) ===== */
  --c-black:        #0A0A0A;
  --c-graphite:     #161616;
  --c-charcoal:     #1F1F1F;
  --c-ash:          #8A8A85;
  --c-stone:        #B8B5AF;
  --c-sand:         #C8B8A0;
  --c-offwhite:     #F2F0EC;
  --c-white:        #FAFAFA;

  --c-bg:           var(--c-black);
  --c-surface:      var(--c-graphite);
  --c-text:         var(--c-offwhite);
  --c-text-muted:   var(--c-ash);
  --c-line:         rgba(255, 255, 255, 0.08);

  /* ===== TYPOGRAPHY (Brand OS §10) ===== */
  --font-display:   'Bebas Neue', 'Anton', sans-serif;
  --font-body:      'Space Grotesk', 'Inter', sans-serif;
  --font-mono:      'IBM Plex Mono', monospace;

  /* ===== TYPE SCALE ===== */
  --fs-hero:        clamp(4.5rem, 14vw, 11rem);
  --fs-h2:          clamp(2rem, 5vw, 3.75rem);
  --fs-h3:          clamp(1.4rem, 3vw, 2rem);
  --fs-body:        clamp(1rem, 1.4vw, 1.125rem);
  --fs-small:       0.875rem;
  --fs-micro:       0.75rem;

  /* ===== SPACING ===== */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 2rem;
  --space-4: 4rem;
  --space-5: 8rem;

  /* ===== LAYOUT ===== */
  --container:      1280px;
  --container-narrow: 760px;
  --header-h:       72px;
  --radius:         2px;

  /* ===== MOTION ===== */
  --ease:           cubic-bezier(0.22, 1, 0.36, 1);
  --dur:            0.8s;
}