/**
 * POS CompraMAS - Design Tokens
 * Fase 1: Sistema de diseño (colores, tipografía, espaciado)
 * Fase 4: Sistema de colores + Dark/Light mode
 * Soporta data-theme="light" | "dark" en <html>
 * Transiciones: --transition-theme-duration 300ms
 */

/* ===== LIGHT MODE (default) ===== */
:root,
[data-theme="light"] {
  /* Fondos y superficies */
  --color-background: #f5f5f7;
  --color-background-alt: #ffffff;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-muted: #f0f0f2;

  /* Primarios - Naranja neon agradable */
  --color-primary: #f97316;
  --color-primary-hover: #ea580c;
  --color-primary-active: #c2410c;
  --color-primary-muted: #ffedd5;
  --color-primary-contrast: #ffffff;

  /* Secundarios */
  --color-secondary: #64748b;
  --color-secondary-hover: #475569;
  --color-secondary-active: #334155;
  --color-secondary-muted: #f1f5f9;

  /* Texto */
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  /* #64748b sobre #f5f5f7 ≈ 4.6:1 — pasa WCAG AA */
  --color-text-muted: #64748b;
  --color-text-inverse: #ffffff;

  /* Bordes */
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-border-focus: #f97316;

  /* Estados semánticos */
  --color-success: #16a34a;
  --color-success-contrast: #ffffff;
  --color-success-muted: #dcfce7;
  --color-warning: #d97706;
  --color-warning-contrast: #1c1917;
  --color-warning-muted: #fef3c7;
  --color-danger: #dc2626;
  --color-danger-hover: #b91c1c;
  --color-danger-contrast: #ffffff;
  --color-danger-muted: #fee2e2;
  --color-info: #0284c7;
  --color-info-contrast: #ffffff;
  --color-info-muted: #e0f2fe;

  /* Header (barra superior) - claro en modo claro */
  --color-header-bg: #ffffff;
  --color-header-text: #1e293b;
  --color-header-title: #0369a1;
  --color-header-border: #e2e8f0;
  --color-header-sep: rgba(0, 0, 0, 0.12);
  --color-header-hover: rgba(0, 0, 0, 0.06);

  /* Aliases para compatibilidad con código existente */
  --color-bg: var(--color-background);
  --color-bg-card: var(--color-surface);
  --color-error: var(--color-danger);
  --color-primary-dark: var(--color-primary-hover);
  --color-primary-light: #fdba74;
  --color-accent: var(--color-warning);

  /* Estados deshabilitados */
  --color-disabled-bg: #f1f5f9;
  --color-disabled-text: #94a3b8;
  --color-disabled-border: #e2e8f0;

  /* Overlays para hover/active en light mode */
  --hover-overlay: rgba(0, 0, 0, 0.04);
  --hover-overlay-strong: rgba(0, 0, 0, 0.08);

  /* Tabs / botones de sección no seleccionados — más visibles */
  --color-tab-inactive-bg: #e2e8f0;
  --color-tab-inactive-text: #475569;
  --color-tab-inactive-border: #cbd5e1;
}

/* ===== DARK MODE — Negro fuerte (true dark) ===== */
[data-theme="dark"] {
  --color-background: #0a0a0a;
  --color-background-alt: #141414;
  --color-surface: #141414;
  --color-surface-elevated: #1f1f1f;
  --color-surface-muted: #0a0a0a;

  --color-primary: #fb923c;
  --color-primary-hover: #fdba74;
  --color-primary-active: #fed7aa;
  --color-primary-muted: #7c2d12;
  --color-primary-contrast: #0a0a0a;

  --color-secondary: #a3a3a3;
  --color-secondary-hover: #d4d4d4;
  --color-secondary-active: #f5f5f5;
  --color-secondary-muted: #262626;

  --color-text: #fafafa;
  --color-text-secondary: #d4d4d4;
  --color-text-muted: #a3a3a3;
  --color-text-inverse: #0a0a0a;

  --color-border: #262626;
  --color-border-strong: #404040;
  --color-border-focus: #fb923c;

  --color-success: #22c55e;
  --color-success-contrast: #ffffff;
  --color-success-muted: #14532d;
  --color-warning: #f59e0b;
  --color-warning-contrast: #1c1917;
  --color-warning-muted: #422006;
  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-danger-contrast: #ffffff;
  --color-danger-muted: #450a0a;
  --color-info: #0ea5e9;
  --color-info-contrast: #ffffff;
  --color-info-muted: #0c4a6e;

  --color-primary-dark: var(--color-primary-hover);
  --color-primary-light: #fdba74;
  --color-accent: var(--color-warning);

  --color-header-bg: #0a0a0a;
  --color-header-text: #fafafa;
  --color-header-title: #38bdf8;
  --color-header-border: #262626;
  --color-header-sep: rgba(255, 255, 255, 0.2);
  --color-header-hover: rgba(255, 255, 255, 0.08);

  /* Estados deshabilitados */
  --color-disabled-bg: #1f1f1f;
  --color-disabled-text: #525252;
  --color-disabled-border: #262626;

  /* Overlays para hover/active en dark mode */
  --hover-overlay: rgba(255, 255, 255, 0.05);
  --hover-overlay-strong: rgba(255, 255, 255, 0.1);

  /* Tabs / botones de sección no seleccionados — más visibles sobre fondo oscuro */
  --color-tab-inactive-bg: #262626;
  --color-tab-inactive-text: #d4d4d4;
  --color-tab-inactive-border: #404040;
}

/* ===== TOKENS ESTÁTICOS (independientes del tema) ===== */
:root {
  /* Tipografía — familias */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Consolas', 'Liberation Mono', monospace;

  /* Tipografía — tamaños */
  --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 */

  /* Tipografía — interlineado */
  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;

  /* Tipografía — pesos (nombres canónicos) */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  /* Aliases de retrocompatibilidad → apuntan a los canónicos */
  --font-regular: var(--font-weight-normal);
  --font-medium: var(--font-weight-medium);
  --font-semibold: var(--font-weight-semibold);
  --font-bold: var(--font-weight-bold);

  /* Iconografía — tamaños estándar */
  --icon-sm: 1rem;     /* 16px */
  --icon-md: 1.25rem;  /* 20px - estándar en botones */
  --icon-lg: 1.5rem;   /* 24px */

  /* Espaciado (escala 4px) */
  --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 */
  /* Aliases de espaciado */
  --space-xs: var(--space-1);
  --space-sm: var(--space-2);
  --space-md: var(--space-4);
  --space-lg: var(--space-6);
  --space-xl: var(--space-8);

  /* Bordes — radios */
  --radius-sm: 0.25rem;   /* 4px - badges */
  --radius-md: 0.5rem;    /* 8px - inputs, botones */
  --radius-lg: 0.75rem;   /* 12px - cards, modales */
  --radius-xl: 1rem;      /* 16px - botón Cobrar */
  --radius-full: 9999px;  /* pills */

  /* Sombras — elevaciones */
  --elevation-0: none;
  --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.08);
  --elevation-2: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --elevation-3: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 4px 10px -5px rgba(0, 0, 0, 0.08);
  --elevation-4: 0 20px 40px -10px rgba(0, 0, 0, 0.12);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  /* Alturas de layout */
  --app-header-height: 56px;         /* Desktop */
  --app-header-height-mobile: 48px;  /* Mobile (<768px) */
  --pos-header-height: 64px;         /* Header POS desktop */

  /* Transiciones */
  --transition-fast: 100ms ease;
  --transition-base: 200ms ease;
  --transition-theme-duration: 300ms;
  --transition-theme-easing: ease-in-out;

  /* Duraciones y curvas de easing */
  --duration-instant: 50ms;
  --duration-fast: 100ms;
  --duration-normal: 200ms;
  --duration-slow: 300ms;
  --duration-slower: 400ms;
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== Z-INDEX SCALE ===== */
/* Dropdowns / tooltips : 100       */
/* Connection status    : 150       */
/* Sidebar backdrop     : 199       */
/* Sidebar (overlay)    : 200       */
/* Sidebar hamburger    : 201       */
/* Context menu (POS)   : 250       */
/* Confirm dialog       : 300       */
/* Modal cobro (POS)    : 300       */
/* Recibo overlay (POS) : 310       */
/* Toast container      : 400       */

/* ===== BREAKPOINTS (referencia para media queries) ===== */
/* Mobile:              360-480px  (base) */
/* Mobile Large:        481-639px  */
/* Mobile Large (wide): 640px      — grid-2 columnas en listas */
/* Tablet:              768-1023px */
/* Tablet Large:        900px      — menú horizontal → compacto en el header */
/* Desktop:             1024-1279px */
/* Desktop Large:       1280px+   */
