:root {
  /* -----------------------------------
     🎨 PALETA PRINCIPAL (Dual, profesional)
  ----------------------------------- */
  --color-primary: #1E3A8A;       /* Azul profundo principal */
  --color-primary-light: #3B5AC6; /* Azul medio */
  --color-primary-dark: #15266A;  /* Azul más oscuro */

  --color-secondary: #64748B;     /* Gris azulado */
  --color-secondary-light: #A0AEC0;
  --color-secondary-dark: #475569;

  --color-accent: #2563EB;        /* Azul brillante sutil */
  --color-accent-light: #60A5FA;
  --color-accent-dark: #1D4ED8;

  --color-success: #2563EB;
  --color-warning: #1D4ED8;
  --color-error:   #15266A;

  --color-white: #F3F4F6;         /* Texto claro */
  --color-black: #0F172A;         /* Fondo profundo */

  --color-bg: #0F172A;            /* Fondo principal */
  --color-bg-light: #1E293B;      /* Fondo secundario / cards */
  --color-bg-card: #1E293B;
  --color-bg-hover: #283046;      /* Hover en elementos */

  --color-text: #E5E7EB;          /* Texto principal */
  --color-text-muted: #CBD5E1;    /* Texto secundario */
  --color-text-dark: #94A3B8;     /* Texto oscuro */

  /* -----------------------------------
     🔥 GRADIENTES
  ----------------------------------- */
  --gradient-primary: linear-gradient(135deg, #1E3A8A 0%, #64748B 100%);
  --gradient-accent: linear-gradient(135deg, #2563EB 0%, #1E3A8A 100%);
  --gradient-dark: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);

  /* -----------------------------------
     ✨ SOMBRAS
  ----------------------------------- */
  --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-medium: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-strong: 0 12px 32px rgba(0, 0, 0, 0.55);

  --shadow-glow-primary: 0 0 12px rgba(30, 58, 138, 0.5);
  --shadow-glow-accent: 0 0 12px rgba(37, 99, 235, 0.5);
  --shadow-glow-secondary: 0 0 12px rgba(100, 116, 139, 0.5);

  /* -----------------------------------
     🟦 RADIOS
  ----------------------------------- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;

  /* -----------------------------------
     📏 SPACING
  ----------------------------------- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* -----------------------------------
     🔢 TIPOGRAFÍAS
  ----------------------------------- */
  --font-title: "Sora", sans-serif;
  --font-text: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* -----------------------------------
     ⚡ ANIMACIONES / TRANSICIONES
  ----------------------------------- */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* -----------------------------------
     🧱 BORDES
  ----------------------------------- */
  --border-light: 1px solid rgba(255, 255, 255, 0.1);
  --border-strong: 1px solid rgba(255, 255, 255, 0.2);

  /* -----------------------------------
     🔥 OPACIDADES
  ----------------------------------- */
  --opacity-10: 0.1;
  --opacity-20: 0.2;
  --opacity-40: 0.4;
  --opacity-70: 0.7;
  --opacity-90: 0.9;

  /* -----------------------------------
     🧱 CONTENEDORES
  ----------------------------------- */
  --container-sm: 540px;
  --container-md: 720px;
  --container-lg: 960px;
  --container-xl: 1140px;
  --container-2xl: 1320px;

  /* -----------------------------------
     📱 BREAKPOINTS
  ----------------------------------- */
  --bp-xs: 480px;
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
  --bp-2xl: 1536px;

  /* -----------------------------------
     🔝 Z-INDEX
  ----------------------------------- */
  --z-back: -1;
  --z-normal: 1;
  --z-dropdown: 10;
  --z-fixed: 100;
  --z-modal: 1000;
  --z-max: 9999;
}