/**
 * CSS Custom Properties (Variables)
 * Design tokens for Our Local Roofers
 *
 * Color Scheme: White and Light Blue - Professional
 */

:root {
  /* ===========================================
     COLOR PALETTE
     =========================================== */

  /* Primary Colors - Light Blue */
  --color-primary: #0088fe;           /* Main brand blue */
  --color-primary-light: #1a9aff;     /* Lighter shade for hovers */
  --color-primary-dark: #0070d6;      /* Darker shade for active states */
  --color-primary-rgb: 0, 136, 254;   /* RGB values for transparency */

  /* Secondary Colors */
  --color-secondary: #0056b3;         /* Deeper blue for accents */
  --color-secondary-light: #0066cc;
  --color-secondary-dark: #004080;

  /* Accent Colors */
  --color-accent: #33bbff;            /* Light sky blue for highlights */
  --color-accent-light: #66ccff;
  --color-accent-dark: #00aaff;

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;           /* Very light background */
  --color-gray-100: #f1f5f9;          /* Light background */
  --color-gray-200: #e2e8f0;          /* Borders, dividers */
  --color-gray-300: #cbd5e1;          /* Disabled states */
  --color-gray-400: #94a3b8;          /* Placeholder text */
  --color-gray-500: #64748b;          /* Secondary text */
  --color-gray-600: #475569;          /* Body text */
  --color-gray-700: #334155;          /* Headings */
  --color-gray-800: #1e293b;          /* Dark text */
  --color-gray-900: #0f172a;          /* Darkest text */

  /* Navy Colors - matches logo */
  --color-navy: #0d2137;              /* Dark navy for header */
  --color-navy-light: #143352;        /* Lighter navy for hover states */
  --color-navy-dark: #081624;         /* Darker navy */

  /* Semantic Colors */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: var(--color-primary);

  /* Background Colors */
  --color-bg-primary: var(--color-white);
  --color-bg-secondary: var(--color-gray-50);
  --color-bg-tertiary: var(--color-gray-100);
  --color-bg-dark: var(--color-gray-900);

  /* Text Colors */
  --color-text-primary: var(--color-gray-800);
  --color-text-secondary: var(--color-gray-600);
  --color-text-tertiary: var(--color-gray-500);
  --color-text-inverse: var(--color-white);
  --color-text-link: var(--color-primary);
  --color-text-link-hover: var(--color-primary-dark);


  /* ===========================================
     TYPOGRAPHY
     =========================================== */

  /* Font Families */
  --font-family-base: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
                      Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans',
                      'Helvetica Neue', sans-serif;
  --font-family-heading: var(--font-family-base);
  --font-family-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo,
                      Consolas, 'Liberation Mono', monospace;

  /* Font Sizes - Mobile First (using clamp for fluid typography) */
  --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: clamp(1.5rem, 3vw, 1.875rem);       /* 24-30px */
  --font-size-3xl: clamp(1.875rem, 4vw, 2.25rem);      /* 30-36px */
  --font-size-4xl: clamp(2.25rem, 5vw, 3rem);          /* 36-48px */
  --font-size-5xl: clamp(2.5rem, 6vw, 3.75rem);        /* 40-60px */

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

  /* Line Heights */
  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* 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-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 */

  /* Section Spacing */
  --section-padding-y: clamp(3rem, 8vw, 6rem);
  --section-padding-y-sm: clamp(2rem, 5vw, 4rem);


  /* ===========================================
     LAYOUT
     =========================================== */

  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--space-4);

  /* Grid */
  --grid-gap: var(--space-6);
  --grid-gap-sm: var(--space-4);
  --grid-gap-lg: var(--space-8);


  /* ===========================================
     BORDERS & SHADOWS
     =========================================== */

  /* 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;

  /* Border Width */
  --border-width: 1px;
  --border-width-2: 2px;

  /* 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 -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
               0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
               0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);


  /* ===========================================
     TRANSITIONS
     =========================================== */

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-colors: color 150ms ease, background-color 150ms ease,
                       border-color 150ms ease, box-shadow 150ms ease;


  /* ===========================================
     Z-INDEX SCALE
     =========================================== */

  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;


  /* ===========================================
     BREAKPOINTS (for reference in media queries)
     =========================================== */

  /* Use these values in media queries:
     --breakpoint-sm: 640px;
     --breakpoint-md: 768px;
     --breakpoint-lg: 1024px;
     --breakpoint-xl: 1280px;
     --breakpoint-2xl: 1536px;
  */
}

/* Dark mode support (optional - can enable later) */
/*
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-primary: var(--color-gray-900);
    --color-bg-secondary: var(--color-gray-800);
    --color-text-primary: var(--color-gray-100);
    --color-text-secondary: var(--color-gray-300);
  }
}
*/