:root {
  /* Core Colors */
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-primary-light: #EFF6FF;
  --color-secondary: #1B2B4B;
  --color-accent: #F59E0B;

  --color-background: #F0F2F5;
  --color-surface: #FFFFFF;
  --color-surface-soft: #F8FAFC;
  --color-surface-muted: #F1F5F9;
  --color-border: #E2E8F0;

  /* Text Colors */
  --color-text-main: #1E293B;
  --color-text-muted: #64748B;
  --color-text-light: #FFFFFF;

  /* Status Colors */
  --color-status-success: #22C55E;
  --color-status-warning: #F59E0B;
  --color-status-danger: #EF4444;
  --color-status-info: #3B82F6;

  /* Sidebar */
  --sidebar-bg: #1B2B4B;
  --sidebar-width: 260px;
  --sidebar-collapsed: 0px;

  /* Header */
  --header-height: 72px;
  --mobile-header-height: 56px;
  --header-logo-width: 158px;
  --header-logo-height: 40px;
  --mobile-header-logo-width: 145px;
  --mobile-header-logo-height: 34px;

  /* Typography */
  --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;

  /* 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, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 9999px;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
}

body.theme-dark {
  --color-primary: #60A5FA;
  --color-primary-hover: #93C5FD;
  --color-primary-light: #1E3A5F;
  --color-secondary: #CBD5E1;
  --color-accent: #FBBF24;

  --color-background: #0F172A;
  --color-surface: #172033;
  --color-surface-soft: #1E293B;
  --color-surface-muted: #253349;
  --color-border: #334155;

  --color-text-main: #E5EDF7;
  --color-text-muted: #A7B4C5;
  --color-text-light: #FFFFFF;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 18px 35px rgba(0, 0, 0, 0.32);
}