:root {
  /* Primary Colors */
  --color-primary: #0a7ea3;
  --color-primary-dark: #086382;
  --color-primary-light: #0a7ea31a;

  /* Secondary Colors */
  --color-secondary: #4a5f6b;
  --color-secondary-dark: #3a4b55;
  --color-secondary-light: #4a5f6b1a;

  /* Tertiary Colors */
  --color-tertiary: #6c5b7b;
  --color-tertiary-light: #6c5b7b1a;

  /* Surface Colors */
  --color-surface-base: #fafafa;
  --color-surface-card: #ffffff;
  --color-surface-elevated: #ffffff;

  /* Text Colors */
  --color-text-primary: rgba(0, 0, 0, 0.87);
  --color-text-secondary: rgba(0, 0, 0, 0.6);
  --color-text-disabled: rgba(0, 0, 0, 0.38);

  /* Semantic Colors */
  --color-success: #2e7d32;
  --color-warning: #f57c00;
  --color-error: #c62828;
  --color-info: #0277bd;

  /* Border Colors */
  --color-border: rgba(0, 0, 0, 0.12);
  --color-border-light: rgba(0, 0, 0, 0.06);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, 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: 2.25rem;
  --font-size-4xl: 3rem;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.75;

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--spacing-xl);

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}