:root {
  /* 🎯 Colores */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;

  --background: #f8fafc;
  --surface: #ffffff;

  --text: #0f172a;
  --text-muted: #64748b;

  --border: #e2e8f0;

  /* 🌈 Gradiente sutil */
  --accent-gradient: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);

  /* 🔤 Tipografía */
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* 📏 Escala tipográfica */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.75rem;

  /* 🧱 Espaciado */
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 64px;
  --space-1xl: 128px;

  /* 🟦 Bordes */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* 🌑 Sombras */
  --shadow-sm: 0 2px 6px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 40px rgba(0,0,0,0.12);
}

/* 🌞 LIGHT (default) */
:root {
  --background: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
}

/* 🌙 DARK MODE */
[data-theme="dark"] {
  --background: #0f172a;
  --surface: #111827;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #1f2937;
}