:root {
  --color-primary: #0A0A0A;
  --color-primary-hover: #171717;
  --color-accent: #10A37F;
  --color-accent-hover: #0D8C6D;
  --color-accent-light: rgba(16, 163, 127, 0.08);
  --color-accent-lighter: rgba(16, 163, 127, 0.04);

  --color-success: #10A37F;
  --color-success-light: rgba(16, 163, 127, 0.1);
  --color-warning: #E5A100;
  --color-warning-light: rgba(229, 161, 0, 0.1);
  --color-danger: #EF4146;
  --color-danger-light: rgba(239, 65, 70, 0.1);

  --color-white: #FFFFFF;
  --color-bg: #FFFFFF;
  --color-bg-secondary: #F7F7F8;
  --color-bg-tertiary: #ECECF1;
  --color-border: #E5E5E5;
  --color-border-light: #F0F0F0;

  --color-text-primary: #0D0D0D;
  --color-text-secondary: #676767;
  --color-text-tertiary: #8E8EA0;
  --color-text-quaternary: #ACACBE;

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF 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: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.25rem;
  --text-6xl: 4rem;

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

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.7;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.01em;

  --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-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --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 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.1);
  --shadow-focus: 0 0 0 2px rgba(16, 163, 127, 0.2);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 400ms;

  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 1000;
  --z-tooltip: 1100;
}