/* Design System Variables for All Systems Go Furniture */

:root {
  /* Primary Colors - Professional Blue */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* Secondary Colors - Success Green */
  --color-secondary-50: #f0fdf4;
  --color-secondary-100: #dcfce7;
  --color-secondary-200: #bbf7d0;
  --color-secondary-300: #86efac;
  --color-secondary-400: #4ade80;
  --color-secondary-500: #22c55e;
  --color-secondary-600: #16a34a;
  --color-secondary-700: #15803d;
  --color-secondary-800: #166534;
  --color-secondary-900: #14532d;

  /* Neutral Colors */
  --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;

  /* Semantic Colors */
  --color-success: var(--color-secondary-600);
  --color-error: #dc2626;
  --color-warning: #d97706;
  --color-info: var(--color-primary-600);

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

  /* Font Families */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Poppins', sans-serif;

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

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Spacing Scale */
  --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-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  /* 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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

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

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

  /* Container Max Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;

  /* Layout */
  --header-height: 80px;
  --footer-height: auto;

  /* Component Specific */
  --btn-padding-y: var(--space-3);
  --btn-padding-x: var(--space-6);
  --btn-font-size: var(--text-base);
  --btn-line-height: var(--leading-none);

  --input-padding-y: var(--space-3);
  --input-padding-x: var(--space-4);
  --input-font-size: var(--text-base);
  --input-line-height: var(--leading-normal);

  --card-padding: var(--space-6);
  --card-border-radius: var(--radius-lg);
  --card-shadow: var(--shadow-md);
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-neutral-50: #171717;
    --color-neutral-100: #262626;
    --color-neutral-200: #404040;
    --color-neutral-300: #525252;
    --color-neutral-400: #737373;
    --color-neutral-500: #a3a3a3;
    --color-neutral-600: #d4d4d4;
    --color-neutral-700: #e5e5e5;
    --color-neutral-800: #f5f5f5;
    --color-neutral-900: #fafafa;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --color-primary-600: #0000ff;
    --color-secondary-600: #008000;
    --color-neutral-700: #000000;
    --color-neutral-400: #ffffff;
  }
}