/* ================================
   DESIGN SYSTEM - Variables CSS
   Industrias del Cartón Peruanos
   Enterprise Theme
================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* === Primary Colors (Dark Blue - Corporate) === */
  --color-primary-900: #0C1829;
  --color-primary-800: #142138;
  --color-primary-700: #1A2D4D;
  --color-primary-600: #234069;
  --color-primary-500: #2C5282;
  --color-primary-400: #3D6A9F;
  --color-primary-300: #5A8AC4;
  --color-primary-200: #90B4E0;
  --color-primary-100: #C5D9F0;
  --color-primary-50: #E8F1FA;

  /* === Secondary/Accent Colors (Orange/Gold - Industrial) === */
  --color-accent-600: #B45309;
  --color-accent-500: #D97706;
  --color-accent-400: #F59E0B;
  --color-accent-300: #FBBF24;
  --color-accent-200: #FCD34D;
  --color-accent-100: #FEF3C7;

  /* === Secondary Green (for success/eco) === */
  --color-green-600: #16A34A;
  --color-green-500: #22C55E;
  --color-green-100: #DCFCE7;

  /* === Neutral Colors === */
  --color-neutral-900: #111827;
  --color-neutral-800: #1F2937;
  --color-neutral-700: #374151;
  --color-neutral-600: #4B5563;
  --color-neutral-500: #6B7280;
  --color-neutral-400: #9CA3AF;
  --color-neutral-300: #D1D5DB;
  --color-neutral-200: #E5E7EB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-50: #F9FAFB;
  --color-white: #FFFFFF;

  /* === Semantic Colors === */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  --color-whatsapp: #25D366;

  /* === Typography === */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', var(--font-primary);

  /* Font Sizes (fluid) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.8rem + 2vw, 3rem);
  --text-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);
  --text-6xl: clamp(3.5rem, 3rem + 3vw, 5rem);

  /* Font Weights */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Line Heights */
  --leading-tight: 1.15;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* === Spacing (8px grid) === */
  --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 */

  /* === Layout === */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;

  /* === Border Radius === */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* === Shadows (Enterprise - more subtle) === */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.05);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.15);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  --shadow-card: 0 1px 3px rgb(0 0 0 / 0.08), 0 4px 12px rgb(0 0 0 / 0.05);
  --shadow-card-hover: 0 4px 6px rgb(0 0 0 / 0.05), 0 10px 40px rgb(0 0 0 / 0.1);
  --shadow-glow-accent: 0 0 30px rgb(245 158 11 / 0.3);
  --shadow-glow-primary: 0 0 30px rgb(44 82 130 / 0.3);

  /* === Transitions === */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-smooth: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* === Z-Index Scale === */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-topbar: 800;
  --z-whatsapp: 900;
}

/* Theme variables */
:root {
  --color-bg: var(--color-neutral-50);
  --color-surface: var(--color-white);
  --color-text: var(--color-neutral-900);
  --color-text-muted: var(--color-neutral-600);
  --color-border: var(--color-neutral-200);
}