:root {
  /* Cores Principais do Design System */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-dark: #1e40af;
  
  --secondary: #475569;
  --secondary-hover: #334155;
  --secondary-light: #f1f5f9;

  --success: #10b981;
  --success-hover: #059669;
  --success-light: #ecfdf5;
  --success-dark: #065f46;

  --warning: #f59e0b;
  --warning-hover: #d97706;
  --warning-light: #fffbeb;

  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-light: #fef2f2;

  --info: #06b6d4;
  --info-light: #ecfeff;

  /* WhatsApp Brand Accent */
  --whatsapp: #25d366;
  --whatsapp-hover: #20ba5a;
  --whatsapp-light: #dcf8c6;

  /* Superfícies e Fundos */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  --bg-sidebar-active: #334155;
  --bg-header: #ffffff;
  
  /* Textos */
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-inverse: #ffffff;
  --text-sidebar: #cbd5e1;
  --text-sidebar-active: #ffffff;

  /* Bordas e Divisores */
  --border-color: #e2e8f0;
  --border-color-hover: #cbd5e1;
  --border-color-dark: #334155;

  /* Sombras */
  --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);

  /* Dimensões */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 72px;
  --header-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Transições */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;

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