/* =========================================
   HR NextGen Solutions - CSS Variables
   Design Token System
   ========================================= */

:root {
  /* Brand Colors */
  --color-primary: #2563EB;
  --color-secondary: #4F46E5;
  --color-primary-light: #60A5FA;
  --color-secondary-light: #818CF8;
  --color-primary-dark: #1D4ED8;
  --color-secondary-dark: #3730A3;
  --color-white: #ffffff;
  --color-navy: #0F172A;
  --color-slate: #64748B;
  --color-slate-light: #E2E8F0;

  /* Brand Gradient */
  --gradient-brand: linear-gradient(135deg, #2563EB 0%, #4F46E5 100%);
  --gradient-brand-reverse: linear-gradient(135deg, #4F46E5 0%, #2563EB 100%);
  --gradient-brand-soft: linear-gradient(135deg, rgba(37, 99, 235, 0.10) 0%, rgba(79, 70, 229, 0.10) 100%);
  --gradient-hero: radial-gradient(ellipse at 18% 18%, rgba(37, 99, 235, 0.12) 0%, transparent 52%),
                   radial-gradient(ellipse at 82% 24%, rgba(79, 70, 229, 0.10) 0%, transparent 54%),
                   linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);

  /* Background Colors */
  --bg-dark: #F8FAFC;
  --bg-darker: #FFFFFF;
  --bg-section-alt: #F1F5F9;
  --bg-card: rgba(255, 255, 255, 0.86);
  --bg-card-hover: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-strong: rgba(255, 255, 255, 0.92);
  --bg-overlay: rgba(15, 23, 42, 0.45);

  /* Text Colors */
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-faint: #94A3B8;

  /* Border Colors */
  --border-subtle: rgba(148, 163, 184, 0.24);
  --border-medium: rgba(100, 116, 139, 0.34);
  --border-strong: rgba(51, 65, 85, 0.42);
  --border-primary: rgba(37, 99, 235, 0.32);

  /* Shadow System */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.11);
  --shadow-xl: 0 28px 70px rgba(15, 23, 42, 0.14);
  --shadow-glow-primary: 0 16px 40px rgba(37, 99, 235, 0.16);
  --shadow-glow-secondary: 0 16px 40px rgba(79, 70, 229, 0.14);
  --shadow-glow-strong: 0 22px 58px rgba(37, 99, 235, 0.20);
  --shadow-card-hover: 0 24px 55px rgba(15, 23, 42, 0.12);

  /* Spacing Scale (8px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

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

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --transition-slower: 0.6s ease;

  /* Z-Index Layers */
  --z-base: 1;
  --z-card: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Layout */
  --container-max: 1280px;
  --container-wide: 1440px;
  --container-narrow: 900px;
  --header-height: 80px;
  --header-height-scrolled: 64px;
}