/* ==========================================================================
   DESIGN TOKENS — BALT PARTNERS
   Variables CSS centralisées. Toutes les couleurs, typos, spacing, shadows.
   ========================================================================== */

:root {
  /* ---- Colors: Core ---- */
  --color-bg-primary: #F8F7F4;
  --color-bg-secondary: #FFFFFF;
  --color-bg-dark: #0C1220;
  --color-bg-dark-secondary: #141B2D;
  --color-bg-accent: #EFF6FF;
  --color-bg-accent-warm: #FFF8ED;

  /* ---- Colors: Text ---- */
  --color-text-primary: #1A1A2E;
  --color-text-secondary: #64648C;
  --color-text-tertiary: #9CA3AF;
  --color-text-inverse: #FFFFFF;
  --color-text-inverse-secondary: #B0B8C8;

  /* ---- Colors: Accent ---- */
  --color-accent-primary: #2563EB;
  --color-accent-primary-hover: #1D4ED8;
  --color-accent-primary-light: #DBEAFE;
  --color-accent-secondary: #C8A97E;
  --color-accent-secondary-hover: #B8956A;
  --color-accent-secondary-light: #F5EDE0;

  /* ---- Colors: Semantic ---- */
  --color-success: #10B981;
  --color-success-light: #D1FAE5;
  --color-warning: #F59E0B;
  --color-warning-light: #FEF3C7;
  --color-error: #EF4444;
  --color-error-light: #FEE2E2;

  /* ---- Colors: France vs Lettonie ---- */
  --color-france: #EF4444;
  --color-france-light: #FEE2E2;
  --color-lettonie: #2563EB;
  --color-lettonie-light: #DBEAFE;

  /* ---- Colors: Border ---- */
  --color-border-primary: #E5E5EA;
  --color-border-secondary: #F0F0F5;
  --color-border-dark: #2A3350;

  /* ---- Typography: Font Families ---- */
  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-subheading: 'Lato', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

  /* ---- Typography: Sizes ---- */
  --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 */

  /* ---- Typography: Line Heights ---- */
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* ---- Typography: Letter Spacing ---- */
  --tracking-tighter: -0.04em;
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.02em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* ---- Typography: Font Weights ---- */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* ---- 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 */
  --space-32: 8rem;      /* 128px */

  /* ---- Border Radius ---- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.14);

  /* ---- Transitions ---- */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ---- Z-Index ---- */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-overlay: 30;
  --z-modal: 40;
  --z-tooltip: 50;
  --z-toast: 60;

  /* ---- Layout ---- */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;
  --nav-height: 72px;
  --nav-blur: 12px;
  --nav-bg: rgba(248, 247, 244, 0.85);
  --nav-bg-scrolled: rgba(248, 247, 244, 0.95);
  --section-padding: var(--space-20);
  --section-padding-mobile: var(--space-12);
}

/* ---- Dark sections ---- */
[data-theme="dark"] {
  --color-bg-primary: #0C1220;
  --color-bg-secondary: #141B2D;
  --color-text-primary: #EDEDED;
  --color-text-secondary: #8B95A8;
  --color-text-tertiary: #6B7280;
  --color-border-primary: #2A3350;
  --color-border-secondary: #1E2740;
  --nav-bg: rgba(12, 18, 32, 0.85);
}