:root {
  /* Colores principales */
  --color-primary: #1B2A4A;
  --color-primary-light: #2D4A7A;
  --color-primary-dark: #0F1A2E;
  --color-accent: #E8A838;
  --color-accent-hover: #D4952E;
  --color-accent-light: #FDF3E1;

  /* Fondos */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F7FA;
  --color-bg-dark: #1B2A4A;

  /* Texto */
  --color-text: #1A1A2E;
  --color-text-light: #6B7280;
  --color-text-inverse: #FFFFFF;
  --color-text-accent: #E8A838;

  /* Estados */
  --color-success: #10B981;
  --color-error: #EF4444;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;

  /* Bordes y sombras */
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.15);

  /* Tipografia */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  /* Espaciado */
  --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;

  /* Bordes */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 300;
  --z-modal: 400;
  --z-accessibility: 600;

  /* Layout */
  --header-height: 70px;
  --max-width: 1200px;
  --sidebar-width: 280px;

  /* Agent (ARIA) */
  --agent-orb-size: 64px;
  --agent-orb-size-sm: 56px;
  --agent-bubble-max-w: 360px;
  --agent-bubble-max-w-sm: 280px;
  --agent-glow: rgba(232,168,56,0.3);
  --z-agent: 500;
  --z-spotlight: 450;
  --aria-intro-z: 550;

  /* Facultades */
  --color-fac-admin: #2563EB;
  --color-fac-ingenieria: #7C3AED;
  --color-fac-sociales: #059669;
  --color-fac-artes: #DC2626;
}