/* =====================================
   FACTOR AGENTS - DESIGN TOKENS v1.0
   Sistema de Identidad Visual Completo
   Dark Mode por defecto + Light Mode toggle
   ===================================== */

/* =====================================
   DARK MODE (DEFAULT)
   ===================================== */

:root,
:root[data-theme="dark"] {
    /* ===== FONDOS ===== */
    --bg-primary: #000000;          /* Negro puro - hero, alto impacto */
    --bg-secondary: #0A0A0F;        /* Negro azulado - lectura prolongada */
    --bg-elevated: #151518;         /* Cards, modales elevados */
    --bg-hover: #1F1F23;            /* Estados hover */

    /* ===== TEXTOS ===== */
    --text-primary: #FFFFFF;        /* Títulos H1-H3 */
    --text-secondary: #A3A3A3;      /* Párrafos, body text */
    --text-tertiary: #737373;       /* Labels, captions */

    /* ===== COLORES DE MARCA (4 activos) ===== */
    --brand-purple: #8B5CF6;        /* CTA primario, acción principal */
    --brand-blue: #3B82F6;          /* CTA secundario, enlaces, info */
    --brand-green: #10B981;         /* Éxito, ROI, métricas positivas */
    --brand-teal: #14B8A6;          /* COLOR FIRMA - badges, stats únicos */

    /* ===== UTILIDAD ===== */
    --accent-amber: #F59E0B;        /* Warning únicamente */
    --accent-red: #EF4444;          /* Error, acciones destructivas */

    /* ===== GRADIENTES ===== */
    --grad-primary: linear-gradient(135deg, #3B82F6, #8B5CF6);
    --grad-hero: linear-gradient(180deg, #000000, #0F0F0F);
    --grad-glow: radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.15), transparent 50%);
    --grad-glow-blue: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.12), transparent 50%);
    --grad-glow-teal: radial-gradient(circle at 50% 0%, rgba(20, 184, 166, 0.1), transparent 50%);

    /* ===== BORDES ===== */
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.2);
    --border-strong: rgba(255, 255, 255, 0.3);

    /* ===== SOMBRAS ===== */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.8);

    /* Sombras de marca (glow effects) */
    --shadow-purple: 0 0 30px rgba(139, 92, 246, 0.35);
    --shadow-purple-hover: 0 0 40px rgba(139, 92, 246, 0.5);
    --shadow-blue: 0 0 20px rgba(59, 130, 246, 0.25);
    --shadow-teal: 0 0 20px rgba(20, 184, 166, 0.25);
    --shadow-card: 0 8px 32px rgba(139, 92, 246, 0.08);
    --shadow-card-hover: 0 12px 40px rgba(139, 92, 246, 0.15);
}

/* =====================================
   LIGHT MODE (TOGGLE)
   ===================================== */

:root[data-theme="light"] {
    /* ===== FONDOS ===== */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;        /* Slate-50 */
    --bg-elevated: #FFFFFF;
    --bg-hover: #F1F5F9;            /* Slate-100 */

    /* ===== TEXTOS ===== */
    --text-primary: #0F172A;        /* Slate-900 / Navy */
    --text-secondary: #475569;      /* Slate-600 */
    --text-tertiary: #64748B;       /* Slate-500 */

    /* ===== COLORES DE MARCA (desaturados para light) ===== */
    --brand-purple: #7C3AED;        /* Violet-600 */
    --brand-blue: #2563EB;          /* Blue-600 */
    --brand-green: #059669;         /* Emerald-600 */
    --brand-teal: #0D9488;          /* Teal-600 */

    /* ===== UTILIDAD ===== */
    --accent-amber: #D97706;        /* Amber-600 */
    --accent-red: #DC2626;          /* Red-600 */

    /* ===== GRADIENTES ===== */
    --grad-primary: linear-gradient(135deg, #2563EB, #7C3AED);
    --grad-hero: linear-gradient(180deg, #FFFFFF, #F8FAFC);
    --grad-glow: radial-gradient(circle at 50% 0%, rgba(124, 58, 237, 0.12), transparent 60%);
    --grad-glow-blue: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.1), transparent 60%);
    --grad-glow-teal: radial-gradient(circle at 50% 0%, rgba(13, 148, 136, 0.08), transparent 60%);

    /* ===== BORDES ===== */
    --border-subtle: #E2E8F0;       /* Slate-200 */
    --border-medium: #CBD5E1;       /* Slate-300 */
    --border-strong: #94A3B8;       /* Slate-400 */

    /* ===== SOMBRAS ===== */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Sombras de marca */
    --shadow-purple: 0 4px 20px rgba(124, 58, 237, 0.2);
    --shadow-purple-hover: 0 8px 30px rgba(124, 58, 237, 0.3);
    --shadow-blue: 0 4px 15px rgba(37, 99, 235, 0.15);
    --shadow-teal: 0 4px 15px rgba(13, 148, 136, 0.15);
    --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-card-hover: 0 8px 24px rgba(15, 23, 42, 0.12);
}

/* =====================================
   TIPOGRAFÍA
   ===================================== */

:root {
    /* ===== FAMILIAS ===== */
    --font-heading: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    /* ===== TAMAÑOS (Mobile First) ===== */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */
    --text-6xl: 3.75rem;     /* 60px */

    /* ===== PESOS ===== */
    --weight-normal: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;

    /* ===== LINE HEIGHTS ===== */
    --leading-tight: 1.1;
    --leading-snug: 1.2;
    --leading-normal: 1.5;
    --leading-relaxed: 1.7;

    /* ===== LETTER SPACING ===== */
    --tracking-tight: -0.02em;
    --tracking-normal: 0em;
    --tracking-wide: 0.025em;
}

/* =====================================
   SPACING (Sistema 8pt)
   ===================================== */

:root {
    --space-0: 0;
    --space-1: 0.25rem;      /* 4px */
    --space-2: 0.5rem;       /* 8px */
    --space-3: 0.75rem;      /* 12px */
    --space-4: 1rem;         /* 16px */
    --space-5: 1.25rem;      /* 20px */
    --space-6: 1.5rem;       /* 24px */
    --space-8: 2rem;         /* 32px */
    --space-10: 2.5rem;      /* 40px */
    --space-12: 3rem;        /* 48px */
    --space-16: 4rem;        /* 64px */
    --space-20: 5rem;        /* 80px */
    --space-24: 6rem;        /* 96px */
    --space-32: 8rem;        /* 128px */
}

/* =====================================
   BORDER RADIUS
   ===================================== */

:root {
    --radius-none: 0;
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;
}

/* =====================================
   TRANSITIONS
   ===================================== */

:root {
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* =====================================
   Z-INDEX SCALE
   ===================================== */

:root {
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-modal-backdrop: 1200;
    --z-modal: 1300;
    --z-popover: 1400;
    --z-tooltip: 1500;
}

/* =====================================
   BREAKPOINTS (para referencia en JS)
   ===================================== */

:root {
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* =====================================
   TEMA ALTO CONTRASTE (Opcional)
   ===================================== */

:root[data-theme="high-contrast"] {
    --bg-primary: #000000;
    --bg-secondary: #000000;
    --bg-elevated: #0A0A0F;
    --text-primary: #FFFFFF;
    --text-secondary: #FFFFFF;      /* Sin grises */
    --text-tertiary: #FFFFFF;

    --brand-purple: #A78BFA;        /* Más claro para mejor contraste */
    --brand-blue: #60A5FA;
    --brand-green: #34D399;
    --brand-teal: #2DD4BF;

    --border-subtle: rgba(255, 255, 255, 0.3);
    --border-medium: rgba(255, 255, 255, 0.5);
}

/* =====================================
   UTILITY CLASSES (Basadas en tokens)
   ===================================== */

/* Backgrounds */
.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-elevated { background-color: var(--bg-elevated); }

/* Text colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }

/* Brand colors */
.text-purple { color: var(--brand-purple); }
.text-blue { color: var(--brand-blue); }
.text-green { color: var(--brand-green); }
.text-teal { color: var(--brand-teal); }

.bg-purple { background-color: var(--brand-purple); }
.bg-blue { background-color: var(--brand-blue); }
.bg-green { background-color: var(--brand-green); }
.bg-teal { background-color: var(--brand-teal); }

/* Borders */
.border-subtle { border-color: var(--border-subtle); }
.border-medium { border-color: var(--border-medium); }
.border-strong { border-color: var(--border-strong); }

/* =====================================
   IMPORT DE FUENTES (Google Fonts)
   ===================================== */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap');