/* ==========================================================================
   Design Tokens
   ========================================================================== */

:root {
  /* Colors - Primary (Pixilia Brand) */
  --color-primary-50: #fef2f5;
  --color-primary-100: #fde6eb;
  --color-primary-200: #fccdd7;
  --color-primary-300: #fa9fb3;
  --color-primary-400: #f6718f;
  --color-primary-500: #f0446d;
  --color-primary-600: #9E0031;
  --color-primary-700: #8A002A;
  --color-primary-800: #6f0022;
  --color-primary-900: #5a001b;

  /* Colors - Neutral */
  --color-neutral-0: #ffffff;
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f5f5f5;
  --color-neutral-200: #e5e5e5;
  --color-neutral-300: #d4d4d4;
  --color-neutral-400: #a3a3a3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-800: #262626;
  --color-neutral-900: #171717;
  --color-neutral-1000: #000000;

  /* Colors - Semantic */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Colors - Gray Scale (Alternative naming) */
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  
  /* Colors - Additional Palette */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-purple-300: #C27AFF;
  --color-purple-600: #9810FA;
  --color-yellow-400: #FFD026;
  --color-blue-500: #3B82F6;
  --color-green-500: #22C55E;
  --color-green-50: #dcfce7;
  --color-green-600: #16a34a;
  --color-orange-50: #fef3c7;
  --color-orange-600: #d97706;
  --color-red-50: #fee2e2;
  --color-red-500: #EF4444;
  --color-red-600: #DC2626;
  
  /* Colors - UI Specific */
  --color-text-nav: #364153;
  --color-text-tertiary: #4A5565;
  --color-text-muted-alt: #6A7282;
  --color-accent-pink: #FB64B6;
  --color-bg-light: #F7F7F2;
  --color-border-light: #E5E7EB;
  --color-footer-bg: #101828;
  --color-footer-text: #99A1AF;
  --color-footer-border: #1E2939;

  /* Colors - Application */
  --color-text-primary: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-muted: var(--color-neutral-500);
  --color-text-inverse: var(--color-neutral-0);
  --color-bg-primary: var(--color-neutral-0);
  --color-bg-secondary: var(--color-neutral-50);
  --color-bg-tertiary: var(--color-neutral-100);
  --color-bg-dark: #101828;
  --color-border-primary: var(--color-neutral-200);
  --color-border-secondary: var(--color-neutral-300);

  /* Typography - Font Families */
  --font-family-primary: Merriweather, Georgia, 'Times New Roman', serif;
  --font-family-secondary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'Courier New', Courier, monospace;

  /* Typography - Font Sizes */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  --font-size-7xl: 4.5rem;      /* 72px */

  /* Typography - Line Heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* Typography - Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Typography - Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-widest: 0.1em;

  /* Spacing */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;    /* 2px */
  --radius-base: 0.25rem;   /* 4px */
  --radius-md: 0.375rem;    /* 6px */
  --radius-lg: 0.5rem;      /* 8px */
  --radius-xl: 0.75rem;     /* 12px */
  --radius-2xl: 1rem;       /* 16px */
  --radius-3xl: 1.5rem;     /* 24px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-base: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

  /* Transitions */
  --transition-fast: 150ms;
  --transition-base: 200ms;
  --transition-slow: 300ms;
  --transition-slower: 500ms;
  --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --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 JS) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--space-4);
  --container-padding-md: var(--space-6);
  --container-padding-lg: var(--space-8);

  /* Gradients */
  --gradient-hero: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(247, 247, 242, 1) 50%, rgba(255, 255, 255, 1) 100%);
  --gradient-hero-overlay: linear-gradient(135deg, rgba(158, 0, 49, 0.05) 0%, rgba(0, 0, 0, 0) 50%, rgba(158, 0, 49, 0.1) 100%);
  --gradient-primary: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
  --gradient-primary-dark: linear-gradient(135deg, #8A002A 0%, #6f0022 100%);
  --gradient-purple: linear-gradient(90deg, rgba(158, 0, 49, 0.2) 0%, rgba(152, 16, 250, 0.2) 100%);
  
  /* Heading Sizes (Semantic) */
  --font-size-h1: var(--font-size-6xl);
  --font-size-h2: var(--font-size-5xl);
  --font-size-h3: var(--font-size-4xl);
  --font-size-h4: var(--font-size-3xl);
  --font-size-h5: var(--font-size-2xl);
  --font-size-h6: var(--font-size-xl);
  
  /* Responsive Heading Sizes */
  --font-size-h1-mobile: var(--font-size-4xl);
  --font-size-h2-mobile: var(--font-size-3xl);
  --font-size-h3-mobile: var(--font-size-2xl);
}