:root {
  /* Brand — Printley: Golden-yellow accent on near-black */
  /* "primary" = brand dark (near-black), used for dark sections & text contexts */
  --color-primary: #171717;
  --color-primary-light: #2A2A2A;
  --color-primary-dark: #0A0A0A;
  --color-primary-50: #FEFCE8;   /* yellow tint for selected/hover states */
  --color-primary-100: #FEF9C3;
  --color-primary-200: #FEF08A;

  /* "accent" = signature golden yellow */
  --color-accent: #EAB308;
  --color-accent-light: #FACC15;
  --color-accent-dark: #CA8A04;

  /* Yellow scale */
  --color-yellow-50: #FEFCE8;
  --color-yellow-100: #FEF9C3;
  --color-yellow-200: #FEF08A;
  --color-yellow-300: #FDE047;
  --color-yellow-400: #FACC15;
  --color-yellow-500: #EAB308;
  --color-yellow-600: #CA8A04;
  --color-yellow-700: #A16207;

  --color-cta: #EAB308;
  --color-cta-hover: #CA8A04;

  --color-success: #22C55E;
  --color-warning: #F59E0B;
  --color-error: #EF4444;

  /* Neutrals — warm neutral grays (Printley) */
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F5F5F5;
  --color-gray-200: #E5E5E5;
  --color-gray-300: #D4D4D4;
  --color-gray-400: #A3A3A3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  --color-gray-950: #0A0A0A;

  /* Surfaces */
  --surface-primary: var(--color-white);
  --surface-secondary: var(--color-gray-50);
  --surface-elevated: var(--color-white);
  --surface-glass: rgba(255, 255, 255, 0.8);
  --surface-tinted: #FEFCE8;

  /* Text */
  --text-primary: #171717;
  --text-secondary: #525252;
  --text-muted: #A3A3A3;
  --text-inverse: #FFFFFF;

  /* Borders */
  --border-light: #EAEAEA;
  --border-default: #D4D4D4;

  /* Typography — Poppins display + Inter body (Printley) */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Spacing — 4px base */
  --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;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 24px 56px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(0, 0, 0, 0.02);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.55, 0.06, 0.68, 0.19);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1140px;
  --container-2xl: 1280px;
  --nav-height: 72px;

  /* Z-index */
  --z-dropdown: 40;
  --z-sticky: 50;
  --z-overlay: 60;
  --z-modal: 70;
  --z-toast: 80;
}