/* ============================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   Leading from Within - Executive Coaching
   ============================================ */

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

  /* Primary Colors - Professional Blues */
  --color-primary: #2C5F7C;        /* Deep blue - trust, professionalism */
  --color-primary-light: #3D7A9E;  /* Lighter blue for hovers */
  --color-primary-dark: #1E4A5F;   /* Darker blue for depth */

  /* Secondary Colors - Warm Accents */
  --color-secondary: #B8957A;      /* Warm taupe - approachable, sophisticated */
  --color-secondary-light: #D4B89E; /* Light taupe */
  --color-secondary-dark: #9A7A5F;  /* Deep taupe */

  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-off-white: #FAFAFA;
  --color-light-gray: #F5F5F5;
  --color-gray-100: #E8E8E8;
  --color-gray-200: #D1D1D1;
  --color-gray-300: #B0B0B0;
  --color-gray-400: #8C8C8C;
  --color-gray-500: #6B6B6B;
  --color-gray-600: #4A4A4A;
  --color-gray-700: #2D2D2D;
  --color-gray-800: #1A1A1A;
  --color-black: #0F0F0F;

  /* Semantic Colors */
  --color-success: #5A9A7C;
  --color-error: #C85A54;
  --color-warning: #D4A556;
  --color-info: #5A8AC8;

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

  /* Background Colors */
  --color-bg-primary: var(--color-white);
  --color-bg-secondary: var(--color-off-white);
  --color-bg-tertiary: var(--color-light-gray);
  --color-bg-dark: var(--color-gray-800);

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

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

  /* Font Sizes - Fluid Typography using clamp() */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);      /* 12-14px */
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);        /* 14-16px */
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);      /* 16-18px */
  --font-size-md: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);      /* 18-22px */
  --font-size-lg: clamp(1.375rem, 1.2rem + 0.875vw, 1.75rem);     /* 22-28px */
  --font-size-xl: clamp(1.75rem, 1.5rem + 1.25vw, 2.25rem);       /* 28-36px */
  --font-size-2xl: clamp(2.25rem, 1.875rem + 1.875vw, 3rem);      /* 36-48px */
  --font-size-3xl: clamp(2.75rem, 2.25rem + 2.5vw, 3.75rem);      /* 44-60px */

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

  /* 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;

  /* Letter Spacing */
  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;

  /* ==================
     SPACING
     ================== */

  --spacing-xs: 0.25rem;      /* 4px */
  --spacing-sm: 0.5rem;       /* 8px */
  --spacing-md: 1rem;         /* 16px */
  --spacing-lg: 1.5rem;       /* 24px */
  --spacing-xl: 2rem;         /* 32px */
  --spacing-2xl: 3rem;        /* 48px */
  --spacing-3xl: 4rem;        /* 64px */
  --spacing-4xl: 6rem;        /* 96px */
  --spacing-5xl: 8rem;        /* 128px */

  /* Section Spacing */
  --section-padding-y: clamp(3rem, 5vw, 6rem);
  --section-padding-x: clamp(1rem, 3vw, 2rem);

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

  /* Container Widths */
  --container-max-width: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;

  /* Breakpoints (for reference in JS) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;

  /* ==================
     BORDERS
     ================== */

  --border-width: 1px;
  --border-width-thick: 2px;
  --border-radius-sm: 0.25rem;    /* 4px */
  --border-radius-md: 0.5rem;     /* 8px */
  --border-radius-lg: 0.75rem;    /* 12px */
  --border-radius-xl: 1rem;       /* 16px */
  --border-radius-full: 9999px;

  --border-color: var(--color-gray-200);
  --border-color-light: var(--color-gray-100);
  --border-color-dark: var(--color-gray-300);

  /* ==================
     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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

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

  --transition-speed-fast: 150ms;
  --transition-speed-normal: 250ms;
  --transition-speed-slow: 400ms;

  --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-ease-in: cubic-bezier(0.4, 0, 1, 1);
  --transition-ease-out: cubic-bezier(0, 0, 0.2, 1);
  --transition-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  --transition-default: all var(--transition-speed-normal) var(--transition-ease);

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

  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;

  /* ==================
     EFFECTS
     ================== */

  --blur-sm: blur(4px);
  --blur-md: blur(8px);
  --blur-lg: blur(16px);

  --opacity-disabled: 0.5;
  --opacity-hover: 0.8;
}

/* ==================
   PRINT STYLES
   ================== */

@media print {
  :root {
    --color-primary: #000;
    --color-text-primary: #000;
    --color-bg-primary: #fff;
  }
}