/* ============================================
   Design Tokens - Core Variables
   ============================================ */

:root {
  /* Color System - Workshop Theme */
  --color-primary: #ff6b35;
  --color-primary-dark: #e55a2b;
  --color-primary-light: #ff8659;
  --color-secondary: #ffd23f;
  --color-secondary-dark: #e6bd38;
  --color-accent: #00d4ff;
  --color-accent-dark: #00a8cc;
  --color-success: #4caf50;
  --color-warning: #ff9800;
  --color-danger: #f44336;
  --color-info: #2196f3;
  
  /* Neutral Colors */
  --color-black: #000000;
  --color-gray-900: #0f0f0f;
  --color-gray-800: #1a1a1a;
  --color-gray-700: #2c2c2c;
  --color-gray-600: #404040;
  --color-gray-500: #666666;
  --color-gray-400: #999999;
  --color-gray-300: #b0b0b0;
  --color-gray-200: #e0e0e0;
  --color-gray-100: #f5f5f5;
  --color-white: #ffffff;
  
  /* Typography Scale - Perfect Fourth (1.333) */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.825rem + 0.25vw, 1rem);
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1.075rem + 0.25vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.2rem + 0.25vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.4rem + 0.5vw, 2rem);
  --font-size-3xl: clamp(2rem, 1.8rem + 1vw, 2.5rem);
  --font-size-4xl: clamp(2.5rem, 2.2rem + 1.5vw, 3rem);
  --font-size-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);
  
  /* Font Families */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 900;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Spacing Scale - 8px Grid */
  --space-0: 0;
  --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;
  
  /* Container Widths */
  --container-xs: 20rem;
  --container-sm: 24rem;
  --container-md: 28rem;
  --container-lg: 32rem;
  --container-xl: 36rem;
  --container-2xl: 42rem;
  --container-3xl: 48rem;
  --container-4xl: 56rem;
  --container-5xl: 64rem;
  --container-6xl: 72rem;
  --container-7xl: 80rem;
  
  /* Breakpoints */
  --breakpoint-xs: 320px;
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-base: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 35px 60px -15px rgba(0, 0, 0, 0.3);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 20px rgba(255, 107, 53, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-slower: 500ms ease;
  
  /* Z-Index Scale */
  --z-negative: -1;
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-notification: 1080;
}

/* Dark Mode (Default) */
[data-theme="dark"],
:root {
  --color-bg-primary: var(--color-gray-900);
  --color-bg-secondary: var(--color-gray-800);
  --color-bg-tertiary: var(--color-gray-700);
  --color-text-primary: var(--color-white);
  --color-text-secondary: var(--color-gray-300);
  --color-text-tertiary: var(--color-gray-400);
  --color-border: var(--color-gray-600);
}

/* Light Mode */
[data-theme="light"] {
  --color-bg-primary: var(--color-white);
  --color-bg-secondary: var(--color-gray-100);
  --color-bg-tertiary: var(--color-gray-200);
  --color-text-primary: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-700);
  --color-text-tertiary: var(--color-gray-600);
  --color-border: var(--color-gray-300);
}