:root {
  /* Brand Green Palette */
  --primary-dark: #064e3b;
  --primary: #0c5a36;
  --primary-hover: #084c2d;
  --primary-light: #15803d;
  --primary-subtle: #e8f5ed;
  --primary-tint: #f0fdf4;
  --primary-border: #bbf7d0;

  /* Accent & Status Colors */
  --accent-gold: #d97706;
  --accent-gold-light: #fef3c7;
  --accent-blue: #2563eb;
  --accent-blue-light: #eff6ff;
  --accent-purple: #7c3aed;
  --accent-purple-light: #f5f3ff;
  --accent-sky: #0284c7;
  --accent-sky-light: #f0f9ff;
  --accent-red: #ef4444;
  --accent-red-light: #fee2e2;
  --accent-emerald: #10b981;
  --accent-emerald-light: #ecfdf5;

  /* Neutrals & Backgrounds */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #ffffff;
  --bg-input: #ffffff;
  --bg-input-border: #e2e8f0;

  /* Typography Colors - WCAG AA & AAA Compliant */
  --text-main: #0f172a;
  --text-secondary: #334155;
  --text-muted: #475569;
  --text-light: #64748b;
  --text-white: #ffffff;

  /* Borders & Dividers */
  --border-subtle: #e2e8f0;
  --border-default: #cbd5e1;
  --border-strong: #94a3b8;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.09), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Mobile Layout & Navigation */
  --nav-bottom-height: 64px;
  --header-mobile-height: 60px;
  --z-sidebar: 1000;
  --z-backdrop: 999;
  --z-bottom-nav: 900;
  --z-copilot: 850;
  --z-modal: 2000;

  /* Accessible High-Contrast Colors */
  --text-muted-dark: #334155;
  --text-subtle-dark: #475569;
}