/* CSS Variables - Design System */

:root {
  /* Colors */
  --color-primary: #0066CC;
  --color-primary-dark: #0052A3;
  --color-primary-light: #E6F0FF;

  --color-success: #00AA00;
  --color-success-dark: #008800;
  --color-success-light: #E6F8E6;

  --color-danger: #CC0000;
  --color-danger-dark: #990000;
  --color-danger-light: #FFE6E6;

  --color-warning: #FF9900;
  --color-warning-dark: #CC7700;
  --color-warning-light: #FFF4E6;

  --color-info: #0099FF;
  --color-info-dark: #0077CC;
  --color-info-light: #E6F5FF;

  /* Neutrals */
  --color-text: #333333;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-text-light: #CCCCCC;

  --color-bg: #FFFFFF;
  --color-bg-secondary: #F8F8F8;
  --color-bg-tertiary: #F0F0F0;

  --color-border: #DDDDDD;
  --color-border-light: #EEEEEE;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;

  --line-height-tight: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* Z-index */
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal-backdrop: 40;
  --z-modal: 50;
  --z-toast: 60;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Breakpoints (mobile-first) */
  --breakpoint-sm: 480px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;

  /* Safe Area Insets (for notch/Dynamic Island support) */
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-left: env(safe-area-inset-left, 0px);
  --safe-area-right: env(safe-area-inset-right, 0px);
}