/* ============================================
   AI Advanced Solutions - Design Tokens
   ============================================ */

:root {
  /* Primary palette */
  --color-primary: #1B2B4B;
  --color-primary-light: #2A4170;
  --color-primary-dark: #0F1A2E;

  /* Accent - CTAs and interactive elements */
  --color-accent: #E63946;
  --color-accent-hover: #C5303B;
  --color-accent-light: #FDE8EA;

  /* Secondary accent */
  --color-secondary: #FF6B6B;
  --color-secondary-light: #FFF0F0;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Font */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font sizes - fluid */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: clamp(1.25rem, 2vw, 1.5rem);
  --text-3xl: clamp(1.5rem, 2.5vw, 1.875rem);
  --text-4xl: clamp(1.875rem, 3vw, 2.25rem);
  --text-5xl: clamp(2.25rem, 4vw, 3rem);
  --text-6xl: clamp(2.75rem, 5vw, 3.75rem);

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

  /* Line heights */
  --leading-tight: 1.2;
  --leading-snug: 1.4;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Section padding */
  --section-py: clamp(4rem, 8vw, 7rem);

  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-px: clamp(1rem, 4vw, 2rem);

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

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Header */
  --header-height: 72px;
}