/* ============================================
   CSS Variables - WL Carpet Installer
   ============================================ */

:root {
  /* ========== Colors ========== */
  
  /* Primary Colors */
  --color-primary: #2C5F2D;
  --color-primary-light: #3a7a3c;
  --color-primary-dark: #1f4420;
  
  /* Secondary Colors */
  --color-secondary: #8B4513;
  --color-secondary-light: #a0551a;
  --color-secondary-dark: #6b340e;
  
  /* Accent Colors */
  --color-accent: #D4AF37;
  --color-accent-light: #e0c05a;
  --color-accent-dark: #b8962d;
  
  /* Neutral Colors */
  --color-dark: #1A1A1A;
  --color-medium: #666666;
  --color-light: #F5F5F5;
  --color-white: #FFFFFF;
  --color-border: #E0E0E0;
  
  /* Semantic Colors */
  --color-success: #28A745;
  --color-error: #DC3545;
  --color-warning: #FFC107;
  --color-info: #17A2B8;
  
  /* ========== Typography ========== */
  
  /* Font Families */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  
  /* 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: 1.75rem;     /* 28px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  
  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* ========== Spacing ========== */
  
  --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 ========== */
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  
  /* Header & Footer */
  --header-height: 80px;
  --footer-height: auto;
  
  /* ========== Border Radius ========== */
  
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* ========== Transitions ========== */
  
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* ========== 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 media queries) ========== */
  /* These are used in media queries, not as CSS variables */
  /* Mobile: 320px - 767px */
  /* Tablet: 768px - 1023px */
  /* Desktop: 1024px - 1439px */
  /* Large Desktop: 1440px+ */
}

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */

@media (prefers-color-scheme: dark) {
  :root {
    /* Uncomment and adjust if dark mode is needed in the future */
    /* --color-dark: #F5F5F5; */
    /* --color-light: #1A1A1A; */
    /* --color-white: #2A2A2A; */
  }
}