/* ============================================
   QUANTUM AI RECEPTIONIST - DESIGN TOKENS
   Enhanced Version with Premium Effects
   ============================================ */

:root {
  /* ============================================
     PRIMARY BRAND COLORS
     ============================================ */
  --quantum-primary: #6366F1;
  --quantum-primary-hover: #4F46E5;
  --quantum-primary-light: #818CF8;
  --quantum-primary-dark: #4338CA;
  --quantum-primary-50: rgba(99, 102, 241, 0.05);
  --quantum-primary-100: rgba(99, 102, 241, 0.1);
  --quantum-primary-200: rgba(99, 102, 241, 0.2);
  --quantum-primary-300: rgba(99, 102, 241, 0.3);
  --quantum-primary-400: rgba(99, 102, 241, 0.4);
  --quantum-primary-500: rgba(99, 102, 241, 0.5);
  
  --quantum-secondary: #8B5CF6;
  --quantum-secondary-hover: #7C3AED;
  --quantum-secondary-light: #A78BFA;
  --quantum-secondary-100: rgba(139, 92, 246, 0.1);
  --quantum-secondary-200: rgba(139, 92, 246, 0.2);
  
  --quantum-accent: #EC4899;
  --quantum-accent-hover: #DB2777;
  --quantum-accent-light: #F472B6;
  --quantum-accent-100: rgba(236, 72, 153, 0.1);
  --quantum-accent-200: rgba(236, 72, 153, 0.2);

  /* ============================================
     SUCCESS / WARNING / ERROR STATES
     ============================================ */
  --success-green: #10B981;
  --success-green-light: #34D399;
  --success-green-dark: #059669;
  --success-green-100: rgba(16, 185, 129, 0.1);
  --success-green-200: rgba(16, 185, 129, 0.2);

  --warning-orange: #F59E0B;
  --warning-orange-light: #FBBF24;
  --warning-orange-dark: #D97706;
  --warning-orange-100: rgba(245, 158, 11, 0.1);

  --error-red: #EF4444;
  --error-red-light: #F87171;
  --error-red-dark: #DC2626;
  --error-red-100: rgba(239, 68, 68, 0.1);

  /* ============================================
     NEUTRAL GRAYS - SLATE PALETTE
     ============================================ */
  --dark-bg: #0F172A;
  --dark-bg-light: #1E293B;
  --card-bg: #1E293B;
  --card-bg-hover: #334155;
  --card-bg-active: #475569;
  
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --text-muted: #475569;
  
  --border-color: #334155;
  --border-light: #475569;
  --border-dark: #1E293B;

  /* ============================================
     PREMIUM GRADIENTS
     ============================================ */
  --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
  --gradient-primary-hover: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
  --gradient-accent: linear-gradient(135deg, #EC4899 0%, #8B5CF6 100%);
  --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
  --gradient-hero: linear-gradient(135deg, #0F172A 0%, #1E293B 30%, #6366F1 100%);
  --gradient-card: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
  --gradient-overlay: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.9) 100%);
  --gradient-radial: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.15) 0%, transparent 50%);
  --gradient-shine: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);

  /* ============================================
     TYPOGRAPHY - INTER & SORA
     ============================================ */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Sora', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --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;
  --text-8xl: 6rem;

  --weight-thin: 100;
  --weight-light: 300;
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;
  --weight-black: 900;

  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* ============================================
     SPACING SYSTEM (4px base)
     ============================================ */
  --space-0: 0;
  --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;
  --space-40: 10rem;
  --space-48: 12rem;

  /* ============================================
     BORDER RADIUS
     ============================================ */
  --radius-none: 0;
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-4xl: 2rem;
  --radius-full: 9999px;

  /* ============================================
     SHADOWS & GLOWS
     ============================================ */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

  --shadow-glow-primary: 0 0 20px rgba(99, 102, 241, 0.4);
  --shadow-glow-primary-lg: 0 0 40px rgba(99, 102, 241, 0.5);
  --shadow-glow-secondary: 0 0 20px rgba(139, 92, 246, 0.4);
  --shadow-glow-accent: 0 0 20px rgba(236, 72, 153, 0.4);
  --shadow-glow-success: 0 0 20px rgba(16, 185, 129, 0.4);

  --shadow-button: 0 4px 14px rgba(99, 102, 241, 0.4);
  --shadow-button-hover: 0 6px 20px rgba(99, 102, 241, 0.6);

  /* ============================================
     Z-INDEX SCALE
     ============================================ */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-notification: 1080;
  --z-max: 9999;

  /* ============================================
     BREAKPOINTS
     ============================================ */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* ============================================
     ANIMATION TIMING
     ============================================ */
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;

  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.68, -0.6, 0.32, 1.6);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
}