/* Design Tokens and CSS Variables */

:root {
  /* Brand Colors */
  --color-primary: #E67E22;        /* Warm ginger orange */
  --color-secondary: #FFF8E7;      /* Soft cream */
  --color-accent: #8B4513;         /* Warm brown */
  --color-highlight: #A8D8EA;      /* Pastel teal */
  --color-text: #2C3E50;           /* Dark charcoal */
  --color-text-light: #7F8C8D;     /* Light gray for secondary text */
  --color-white: #FFFFFF;
  --color-black: #000000;
  
  /* Typography */
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 16px;
  --font-size-small: 14px;
  --font-size-large: 18px;
  --font-size-h1: 2.5rem;          /* 40px */
  --font-size-h2: 2rem;            /* 32px */
  --font-size-h3: 1.5rem;          /* 24px */
  --font-size-h4: 1.25rem;         /* 20px */
  --font-size-h5: 1.125rem;        /* 18px */
  --font-size-h6: 1rem;            /* 16px */
  --line-height-base: 1.6;
  --line-height-heading: 1.2;
  --line-height-tight: 1.4;
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing Scale */
  --spacing-xs: 0.5rem;            /* 8px */
  --spacing-sm: 1rem;              /* 16px */
  --spacing-md: 1.5rem;            /* 24px */
  --spacing-lg: 2rem;              /* 32px */
  --spacing-xl: 3rem;              /* 48px */
  --spacing-2xl: 4rem;             /* 64px */
  --spacing-3xl: 6rem;             /* 96px */
  
  /* Layout */
  --sidebar-width: 250px;
  --max-content-width: 1200px;
  --container-padding: var(--spacing-md);
  --section-spacing: var(--spacing-2xl);
  
  /* Border Radius */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  --border-radius-full: 50%;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.18);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Breakpoints (for reference in media queries) */
  --breakpoint-mobile: 768px;
  --breakpoint-tablet: 1024px;
  --breakpoint-desktop: 1200px;
  
  /* Grid System */
  --grid-columns: 12;
  --grid-gap: var(--spacing-md);
  --grid-gap-sm: var(--spacing-sm);
  --grid-gap-lg: var(--spacing-lg);
  
  /* Component Specific Variables */
  --nav-height: 60px;
  --card-padding: var(--spacing-md);
  --button-padding-y: var(--spacing-xs);
  --button-padding-x: var(--spacing-md);
  --input-padding-y: var(--spacing-xs);
  --input-padding-x: var(--spacing-sm);
  
  /* Animation Timing */
  --animation-duration-fast: 200ms;
  --animation-duration-base: 300ms;
  --animation-duration-slow: 500ms;
  
  /* Hover States */
  --hover-elevation: var(--shadow-lg);
  --hover-scale: 1.02;
  --hover-opacity: 0.8;
}

/* Dark mode variables (for future implementation) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #FFFFFF;
    --color-text-light: #B0B0B0;
    --color-secondary: #1A1A1A;
    --color-white: #000000;
    --color-black: #FFFFFF;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0s;
    --transition-base: 0s;
    --transition-slow: 0s;
    --transition-bounce: 0s;
    --animation-duration-fast: 0s;
    --animation-duration-base: 0s;
    --animation-duration-slow: 0s;
  }
}