/* ==========================================================================
   CSS Design Tokens - Polar Flows
   ========================================================================== */

:root {
  /* ===== Color Palette ===== */
  --pf-blue: #187ef9;
  --pf-navy: #012d75;
  --pf-white: #ffffff;
  --pf-slate: #123456;
  --pf-azure: #0665d8;
  --pf-deep: #0140a8;
  
  /* ===== Semantic Colors ===== */
  --pf-primary: var(--pf-blue, #187ef9);
  --pf-primary-dark: var(--pf-navy, #012d75);
  --pf-primary-light: var(--pf-azure, #0665d8);
  --pf-secondary: var(--pf-slate, #123456);
  --pf-accent: var(--pf-deep, #0140a8);
  
  /* ===== Background Colors ===== */
  --pf-bg-primary: var(--pf-white, #ffffff);
  --pf-bg-secondary: #f8fafc;
  --pf-bg-dark: var(--pf-navy, #012d75);
  --pf-bg-accent: var(--pf-blue, #187ef9);
  
  /* ===== Text Colors ===== */
  --pf-text-primary: var(--pf-navy, #012d75);
  --pf-text-secondary: var(--pf-slate, #123456);
  --pf-text-light: var(--pf-white, #ffffff);
  --pf-text-muted: #64748b;
  
  /* ===== Border Colors ===== */
  --pf-border-light: #e2e8f0;
  --pf-border-medium: #cbd5e1;
  --pf-border-dark: var(--pf-slate, #123456);
  
  /* ===== Status Colors ===== */
  --pf-success: #10b981;
  --pf-warning: #f59e0b;
  --pf-error: #ef4444;
  --pf-info: var(--pf-blue, #187ef9);
  
  /* ===== Section Background Colors ===== */
  --pf-bg-section-blue: #d1e7ff;
  --pf-bg-section-light: #f8faff;
  
  /* ===== Logo Sizing ===== */
  --pf-logo-mobile-min-width: 350px;
  --pf-logo-mobile-max-width: 700px;
  
  /* ===== Content Constraints ===== */
  --pf-hero-content-max-width: 650px;
  
  /* ===== Spacing Scale ===== */
  --pf-space-xs: 0.25rem;    /* 4px */
  --pf-space-sm: 0.5rem;     /* 8px */
  --pf-space-md: 1rem;       /* 16px */
  --pf-space-lg: 1.5rem;     /* 24px */
  --pf-space-xl: 2rem;       /* 32px */
  --pf-space-2xl: 3rem;      /* 48px */
  --pf-space-3xl: 4rem;      /* 64px */
  --pf-space-4xl: 6rem;      /* 96px */
  
  /* ===== Typography Scale ===== */
  --pf-font-size-xs: 0.75rem;    /* 12px */
  --pf-font-size-sm: 0.875rem;   /* 14px */
  --pf-font-size-base: 1rem;     /* 16px */
  --pf-font-size-lg: 1.125rem;   /* 18px */
  --pf-font-size-xl: 1.25rem;    /* 20px */
  --pf-font-size-2xl: 1.5rem;    /* 24px */
  --pf-font-size-3xl: 1.875rem;  /* 30px */
  --pf-font-size-4xl: 2.25rem;   /* 36px */
  --pf-font-size-5xl: 3rem;      /* 48px */
  --pf-font-size-6xl: 3.75rem;   /* 60px */
  
  /* ===== Font Weights ===== */
  --pf-font-weight-light: 300;
  --pf-font-weight-normal: 400;
  --pf-font-weight-medium: 500;
  --pf-font-weight-semibold: 600;
  --pf-font-weight-bold: 700;
  --pf-font-weight-extrabold: 800;
  
  /* ===== Line Heights ===== */
  --pf-line-height-tight: 1.25;
  --pf-line-height-snug: 1.375;
  --pf-line-height-normal: 1.5;
  --pf-line-height-relaxed: 1.625;
  --pf-line-height-loose: 2;
  
  /* ===== Responsive Breakpoints ===== */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-2xl: 1400px;
  
  /* ===== Border Radius ===== */
  --pf-radius-sm: 0.25rem;   /* 4px */
  --pf-radius-md: 0.375rem;  /* 6px */
  --pf-radius-lg: 0.5rem;    /* 8px */
  --pf-radius-xl: 0.75rem;   /* 12px */
  --pf-radius-2xl: 1rem;     /* 16px */
  --pf-radius-full: 9999px;
  
  /* ===== Shadows ===== */
  --pf-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --pf-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --pf-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --pf-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* ===== Transitions ===== */
  --pf-transition-fast: 150ms ease-in-out;
  --pf-transition-normal: 250ms ease-in-out;
  --pf-transition-slow: 350ms ease-in-out;
  
  /* ===== Z-Index Scale ===== */
  --pf-z-dropdown: 1000;
  --pf-z-sticky: 1020;
  --pf-z-fixed: 1030;
  --pf-z-modal-backdrop: 1040;
  --pf-z-modal: 1050;
  --pf-z-popover: 1060;
  --pf-z-tooltip: 1070;
  --pf-z-toast: 1080;
}

/* ===== Dark Mode Variants ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --pf-bg-primary: #0f172a;
    --pf-bg-secondary: #1e293b;
    --pf-bg-dark: #020617;
    --pf-text-primary: #f8fafc;
    --pf-text-secondary: #cbd5e1;
    --pf-text-muted: #94a3b8;
    --pf-border-light: #334155;
    --pf-border-medium: #475569;
  }
}

/* ===== High Contrast Mode ===== */
@media (prefers-contrast: high) {
  :root {
    --pf-border-light: #000000;
    --pf-border-medium: #000000;
    --pf-text-muted: #000000;
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  :root {
    --pf-transition-fast: 0ms;
    --pf-transition-normal: 0ms;
    --pf-transition-slow: 0ms;
  }
}