/* ============================================================
   VARIABLES — Automotive Excellence Design Tokens
   ============================================================ */

:root {
  /* ── Color Palette ── */
  --color-bg-primary:   #111827;
  --color-bg-mid:       #0F172A;  /* ~10% darker than #111827 */
  --color-bg-light:     #1E293B;
  --color-bg-deep:      #0B1120;  /* even darker variant */
  --color-accent:       #2563EB;
  --color-accent-light: #3B82F6;  /* lighten ~15% */
  --color-accent-warm:  #F59E0B;  /* complementary warm amber */
  --color-text-primary: #F8FAFC;
  --color-text-muted:   #94A3B8;
  --color-text-dark:    #1E293B;
  --color-border:       rgba(37, 99, 235, 0.25);
  --color-border-dim:   rgba(255, 255, 255, 0.08);
  --color-glow:         rgba(37, 99, 235, 0.35);

  /* ── Typography ── */
  --font-heading: 'Poppins', sans-serif;
  --font-body:    'Inter', sans-serif;

  --fw-light:  300;
  --fw-regular: 400;
  --fw-medium:  500;
  --fw-bold:   700;
  --fw-black:  800;
  --fw-xblack: 900;

  /* ── Fluid Type Scale ── */
  --size-hero-h1:    clamp(3.5rem, 9vw, 9rem);
  --size-section-h2: clamp(2rem, 5vw, 4rem);
  --size-stat-num:   clamp(2.5rem, 5vw, 4rem);
  --size-body:       1rem;
  --size-label:      0.75rem;
  --size-eyebrow:    0.75rem;

  /* ── Spacing ── */
  --section-pad:   clamp(64px, 9vw, 120px);
  --container-max: 1280px;
  --container-pad: clamp(1.25rem, 5vw, 4rem);
  --nav-height:    72px;

  /* ── Radius ── */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* ── Motion ── */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-sweep:    cubic-bezier(0.77, 0, 0.175, 1);
  --ease-out:      cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast:  150ms ease;
  --transition-mid:   250ms ease;
  --transition-btn:   350ms var(--ease-sweep);
  --duration-fast:    0.2s;
  --duration-normal:  0.4s;
  --duration-slow:    0.7s;

  /* ── Surfaces ── */
  --card-bg:     rgba(255, 255, 255, 0.04);
  --card-border: rgba(37, 99, 235, 0.18);
  --nav-shadow:  0 2px 40px rgba(0, 0, 0, 0.7);
  --shadow-card: 0 4px 32px rgba(0, 0, 0, 0.5);

  /* ── Glow ── */
  --glow-accent:    0 0 20px rgba(37, 99, 235, 0.4);
  --glow-accent-sm: 0 0 16px rgba(37, 99, 235, 0.3);
  --glow-warm:      0 0 16px rgba(245, 158, 11, 0.3);

  /* ── Z-Index layers ── */
  --z-nav:    1000;
}