/**
 * CSS Custom Properties (Variables)
 * Landing Page - Guillaume de Laroque
 * Consultant en Transformation Organisationnelle
 */

:root {
  /* ===========================================
     COLOR PALETTE
     Based on Erama branding (teal/green)
     =========================================== */

  /* Primary - Erama brand color (golden/orange) */
  --primary-color: #E8A838;
  --primary-dark: #C8882A;
  --primary-light: #F5C96B;

  /* Neutral tones - WCAG AA compliant contrast ratios */
  --text-dark: #1A1A2E;        /* 14.5:1 contrast on white */
  --text-medium: #4A4A68;      /* 7.2:1 contrast on white */
  --text-light: #595975;       /* 5.5:1 contrast on white - improved for WCAG AA */
  --background-white: #FFFFFF;
  --background-light: #F8F9FA;
  --background-accent: #E9ECEF;

  /* Accent colors */
  --accent-gold: #E9C46A;
  --accent-coral: #F4A261;

  /* Banner colors (ERAMA branding) */
  --banner-dark: #2B3A4E;
  --banner-text-light: #9CA3AF;
  --banner-orange: #E8A838;

  /* ===========================================
     TYPOGRAPHY
     Modern, professional French aesthetic
     =========================================== */

  /* Font families */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Font sizes - using rem for accessibility */
  --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 */

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

  /* Line heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ===========================================
     SPACING
     Consistent spacing scale
     =========================================== */

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

  /* ===========================================
     LAYOUT
     Container and breakpoint values
     =========================================== */

  /* Container max widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-max: 1440px;

  /* Section padding */
  --section-padding-y: var(--space-3xl);
  --section-padding-x: var(--space-lg);

  /* ===========================================
     BORDERS & SHADOWS
     Subtle, professional styling
     =========================================== */

  /* Border radius */
  --radius-sm: 0.25rem;  /* 4px */
  --radius-md: 0.5rem;   /* 8px */
  --radius-lg: 1rem;     /* 16px */
  --radius-xl: 1.5rem;   /* 24px */
  --radius-full: 9999px; /* Fully rounded (circles) */

  /* Box 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
     Smooth, professional animations
     =========================================== */

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* ===========================================
     Z-INDEX SCALE
     Layering management
     =========================================== */

  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal-backdrop: 40;
  --z-modal: 50;
  --z-tooltip: 60;
}