:root {
  /* ─── Colors ─── */
  --color-white: #ffffff;
  --color-off-white: #fafafa;
  --color-gray-50: #f7f7f8;
  --color-gray-100: #efefef;
  --color-gray-200: #e2e2e4;
  --color-gray-300: #c8c8cc;
  --color-gray-400: #a0a0a8;
  --color-gray-500: #74747e;
  --color-gray-600: #56565e;
  --color-gray-700: #3e3e44;
  --color-gray-800: #2a2a2e;
  --color-gray-900: #1a1a1e;
  --color-black: #0e0e10;

  --color-accent: #3b5998;
  --color-accent-hover: #2e4a7a;
  --color-accent-light: rgba(59, 89, 152, 0.07);
  --color-accent-glow: rgba(59, 89, 152, 0.12);

  /* Aliases for internal pages (pages.css, contact) , same tokens as the marketing site */
  --color-primary: var(--color-accent);
  --color-primary-dark: var(--color-accent-hover);
  --ff-heading: var(--font-display);

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

  --text-xs: clamp(0.625rem, 0.6rem + 0.1vw, 0.6875rem);
  --text-sm: clamp(0.75rem, 0.72rem + 0.12vw, 0.8125rem);
  --text-base: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);
  --text-lg: clamp(0.875rem, 0.84rem + 0.18vw, 0.9375rem);
  --text-xl: clamp(1rem, 0.94rem + 0.25vw, 1.125rem);
  --text-2xl: clamp(1.125rem, 1.02rem + 0.45vw, 1.375rem);
  --text-3xl: clamp(1.375rem, 1.15rem + 0.9vw, 1.875rem);
  --text-4xl: clamp(1.625rem, 1.2rem + 1.7vw, 2.5rem);
  --text-5xl: clamp(2rem, 1.4rem + 2.4vw, 3.25rem);

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;

  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.02em;

  /* ─── Spacing ─── */
  --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;
  --space-24: 6rem;

  /* ─── Layout ─── */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  --container-padding: clamp(1rem, 3vw, 2.5rem);

  /* ─── Radii ─── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* ─── Shadows ─── */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-screen: 0 30px 80px -10px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255,255,255,0.05);

  /* ─── Animations ─── */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 600ms;
  --duration-hero: 1200ms;
  --duration-cinematic: 5000ms;
  --duration-slide: 8000ms;

  /* ─── Z-index ─── */
  --z-base: 1;
  --z-overlay: 10;
  --z-hero-content: 20;
  --z-nav: 100;
  --z-floating-cta: 150;
  --z-modal: 1000;

  /* ─── Breakpoints (reference) ─── */
  /* sm: 640px, md: 768px, lg: 1024px, xl: 1280px, 2xl: 1440px */
}