/* =============================================
   RMA ERP - CSS VARIABLES
   Design Tokens & Theme System
   ============================================= */
:root {
  --primary: #2563eb;
  --primary-light: #3b82f6;
  --primary-lighter: #60a5fa;
  --primary-lightest: #dbeafe;
  --primary-dark: #1d4ed8;
  --primary-darker: #1e40af;
  --secondary: #7c3aed;
  --secondary-light: #8b5cf6;
  --secondary-lightest: #ede9fe;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --accent-lightest: #cffafe;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --success: #10b981;
  --success-light: #34d399;
  --success-lightest: #d1fae5;
  --warning: #f59e0b;
  --warning-light: #fbbf24;
  --warning-lightest: #fef3c7;
  --danger: #ef4444;
  --danger-light: #f87171;
  --danger-lightest: #fee2e2;
  --info: #3b82f6;
  --info-lightest: #dbeafe;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --fs-xs: .75rem;
  --fs-sm: .875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  --lh-tight: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.75;
  --sp-0: 0;
  --sp-1: .25rem;
  --sp-2: .5rem;
  --sp-3: .75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --radius-sm: .375rem;
  --radius-md: .5rem;
  --radius-lg: .75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,.25);
  --shadow-card: 0 1px 3px rgba(0,0,0,.08),0 4px 12px rgba(0,0,0,.04);
  --shadow-primary: 0 4px 14px rgba(37,99,235,.25);
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 600;
  --z-tooltip: 700;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --sidebar-w: 260px;
  --sidebar-collapsed-w: 72px;
  --header-h: 64px;
  --content-max: 1400px;
  --glass-bg: rgba(255,255,255,.8);
  --glass-border: rgba(255,255,255,.2);
  --glass-blur: blur(12px);
}