/* ============================================================
   Design Tokens
   ============================================================ */
:root {
  /* Brand navy */
  --navy-900: #0f1e33;
  --navy-800: #132744;
  --navy-700: #1a3153;
  --navy-600: #27437f;
  --navy-500: #2d4e7a;
  --navy-300: #9fb3d1;
  --navy-200: #dae4f0;
  --navy-100: #eef3f9;

  /* Neutrals */
  --white: #ffffff;
  --off-white: #f7f6f3;
  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  /* Text */
  --text: #1a2535;
  --text-muted: #64748b;
  --text-soft: #94a3b8;

  /* Purchase CTA — only for add-to-cart / checkout */
  --cta: #1e6b45;
  --cta-hover: #185939;
  --cta-soft: #e8f3ed;

  /* Semantic */
  --danger: #b91c1c;
  --warning: #c2710c;
  --success: var(--cta);

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  --line-height-tight: 1.15;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.65;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 30, 51, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 30, 51, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 30, 51, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 220ms ease;

  /* Layout — approximate total height of topbar + navbar */
  --header-height: 97px;
}