/**
 * Design Tokens
 * Centralized design system tokens for VarXiuS SAP
 * Based on systematic design approach with semantic naming
 */

:root {
  /* ===== Color Palette ===== */

  /* Brand Colors */
  --token-brand-primary: #00f6ff;
  --token-brand-primary-dark: #00d4db;
  --token-brand-primary-light: #33f8ff;
  --token-brand-secondary: #6366f1;
  --token-brand-accent: #ec4899;

  /* Neutral Colors (Dark Theme Base) */
  --token-neutral-50: #f8fafc;
  --token-neutral-100: #f1f5f9;
  --token-neutral-200: #e2e8f0;
  --token-neutral-300: #cbd5e1;
  --token-neutral-400: #94a3b8;
  --token-neutral-500: #64748b;
  --token-neutral-600: #475569;
  --token-neutral-700: #334155;
  --token-neutral-800: #1e293b;
  --token-neutral-900: #0f172a;
  --token-neutral-950: #0a0e1a;

  /* Background Palette */
  --token-bg-dark: #0a0e1a;
  --token-bg-medium: #0f1419;
  --token-bg-light: #1a1d2e;
  --token-bg-elevated: #1f2937;

  /* Surface Colors */
  --token-surface-base: #1a1d2e;
  --token-surface-elevated: #252836;
  --token-surface-hover: rgba(255, 255, 255, 0.05);
  --token-surface-active: rgba(255, 255, 255, 0.1);

  /* Border Colors */
  --token-border-subtle: #2d3548;
  --token-border-default: #3d4558;
  --token-border-strong: #4d5568;
  --token-border-primary: var(--token-brand-primary);

  /* Text Colors */
  --token-text-primary: #e2e8f0;
  --token-text-secondary: #94a3b8;
  --token-text-tertiary: #64748b;
  --token-text-disabled: #475569;
  --token-text-inverse: #0a0e1a;

  /* Semantic Colors */
  --token-semantic-success: #10b981;
  --token-semantic-warning: #f59e0b;
  --token-semantic-error: #ef4444;
  --token-semantic-info: #3b82f6;

  /* ===== Typography ===== */

  /* Font Families */
  --token-font-sans: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --token-font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --token-font-heading: var(--token-font-sans);
  --token-font-body: var(--token-font-sans);

  /* Font Sizes */
  --token-font-size-xs: 0.75rem;      /* 12px */
  --token-font-size-sm: 0.875rem;     /* 14px */
  --token-font-size-base: 1rem;       /* 16px */
  --token-font-size-lg: 1.125rem;     /* 18px */
  --token-font-size-xl: 1.25rem;      /* 20px */
  --token-font-size-2xl: 1.5rem;      /* 24px */
  --token-font-size-3xl: 1.875rem;    /* 30px */
  --token-font-size-4xl: 2.25rem;     /* 36px */

  /* Font Weights */
  --token-font-weight-light: 300;
  --token-font-weight-normal: 400;
  --token-font-weight-medium: 500;
  --token-font-weight-semibold: 600;
  --token-font-weight-bold: 700;

  /* Line Heights */
  --token-line-height-tight: 1.25;
  --token-line-height-normal: 1.5;
  --token-line-height-relaxed: 1.75;

  /* Letter Spacing */
  --token-letter-spacing-tight: -0.025em;
  --token-letter-spacing-normal: 0;
  --token-letter-spacing-wide: 0.025em;
  --token-letter-spacing-wider: 0.05em;

  /* ===== Spacing ===== */

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

  /* ===== Sizing ===== */

  --token-size-xs: 1rem;      /* 16px */
  --token-size-sm: 1.5rem;    /* 24px */
  --token-size-md: 2rem;      /* 32px */
  --token-size-lg: 2.5rem;    /* 40px */
  --token-size-xl: 3rem;      /* 48px */
  --token-size-2xl: 4rem;     /* 64px */

  /* ===== Border Radius ===== */

  --token-radius-none: 0;
  --token-radius-sm: 0.25rem;   /* 4px */
  --token-radius-md: 0.5rem;    /* 8px */
  --token-radius-lg: 0.75rem;   /* 12px */
  --token-radius-xl: 1rem;      /* 16px */
  --token-radius-2xl: 1.5rem;   /* 24px */
  --token-radius-full: 9999px;

  /* ===== Shadows ===== */

  --token-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --token-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --token-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --token-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --token-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --token-shadow-glow: 0 0 20px rgba(0, 246, 255, 0.3);
  --token-shadow-glow-strong: 0 0 40px rgba(0, 246, 255, 0.5);

  /* ===== Transitions ===== */

  --token-transition-fast: 150ms;
  --token-transition-base: 200ms;
  --token-transition-slow: 300ms;
  --token-transition-slower: 500ms;

  --token-transition-ease-in: cubic-bezier(0.4, 0, 1, 1);
  --token-transition-ease-out: cubic-bezier(0, 0, 0.2, 1);
  --token-transition-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* ===== Z-Index Scale ===== */

  --token-z-base: 0;
  --token-z-dropdown: 1000;
  --token-z-sticky: 1020;
  --token-z-fixed: 1030;
  --token-z-modal-backdrop: 1040;
  --token-z-modal: 1050;
  --token-z-popover: 1060;
  --token-z-tooltip: 1070;

  /* ===== Component-Specific Tokens ===== */

  /* Sidebar */
  --token-sidebar-width-open: 280px;
  --token-sidebar-width-closed: 72px;
  --token-sidebar-width-mobile: 100%;

  /* Menu */
  --token-menu-item-height: 40px;
  --token-menu-item-padding-x: 1rem;
  --token-menu-item-padding-y: 0.625rem;
  --token-menu-category-gap: 0.5rem;

  /* Navbar */
  --token-navbar-height: 64px;
  --token-navbar-padding: 1rem;

  /* Breakpoints */
  --token-breakpoint-sm: 640px;
  --token-breakpoint-md: 768px;
  --token-breakpoint-lg: 1024px;
  --token-breakpoint-xl: 1280px;
  --token-breakpoint-2xl: 1536px;
}

/* ===== Semantic Token Mappings ===== */
/* Map tokens to semantic names for easier consumption */

:root {
  /* Colors */
  --singulio-color-primary: var(--token-brand-primary);
  --singulio-color-primary-dark: var(--token-brand-primary-dark);
  --singulio-color-primary-light: var(--token-brand-primary-light);
  --singulio-color-secondary: var(--token-brand-secondary);
  --singulio-color-accent: var(--token-brand-accent);

  --singulio-color-bg-dark: var(--token-bg-dark);
  --singulio-color-bg-medium: var(--token-bg-medium);
  --singulio-color-bg-light: var(--token-bg-light);

  --singulio-color-surface: var(--token-surface-base);
  --singulio-color-surface-elevated: var(--token-surface-elevated);
  --singulio-color-surface-hover: var(--token-surface-hover);

  --singulio-color-border: var(--token-border-default);
  --singulio-color-border-subtle: var(--token-border-subtle);

  --singulio-color-text-primary: var(--token-text-primary);
  --singulio-color-text-secondary: var(--token-text-secondary);
  --singulio-color-text-tertiary: var(--token-text-tertiary);

  --singulio-color-success: var(--token-semantic-success);
  --singulio-color-warning: var(--token-semantic-warning);
  --singulio-color-danger: var(--token-semantic-error);
  --singulio-color-info: var(--token-semantic-info);

  /* Typography */
  --singulio-font-body: var(--token-font-body);
  --singulio-font-heading: var(--token-font-heading);
  --singulio-font-mono: var(--token-font-mono);

  /* Spacing */
  --singulio-space-xs: var(--token-space-2);
  --singulio-space-sm: var(--token-space-3);
  --singulio-space-md: var(--token-space-4);
  --singulio-space-lg: var(--token-space-6);
  --singulio-space-xl: var(--token-space-8);

  /* Transitions */
  --singulio-transition-fast: var(--token-transition-fast);
  --singulio-transition-base: var(--token-transition-base);
  --singulio-transition-slow: var(--token-transition-slow);

  /* Shadows */
  --singulio-shadow-sm: var(--token-shadow-sm);
  --singulio-shadow-md: var(--token-shadow-md);
  --singulio-shadow-lg: var(--token-shadow-lg);
  --singulio-shadow-glow: var(--token-shadow-glow);
}

/* ===== Light Theme (Optional) ===== */
[data-theme="light"] {
  /* Background Palette */
  --token-bg-dark: #ffffff;
  --token-bg-medium: #f8fafc;
  --token-bg-light: #f1f5f9;
  --token-bg-elevated: #ffffff;

  /* Surface Colors */
  --token-surface-base: #ffffff;
  --token-surface-elevated: #f8fafc;
  --token-surface-hover: rgba(0, 0, 0, 0.05);
  --token-surface-active: rgba(0, 0, 0, 0.1);

  /* Border Colors */
  --token-border-subtle: #e2e8f0;
  --token-border-default: #cbd5e1;
  --token-border-strong: #94a3b8;

  /* Text Colors */
  --token-text-primary: #0f172a;
  --token-text-secondary: #475569;
  --token-text-tertiary: #64748b;
  --token-text-disabled: #94a3b8;
  --token-text-inverse: #ffffff;

  /* Adjust primary for better contrast in light mode */
  --token-brand-primary: #0891b2;
  --token-brand-primary-dark: #0e7490;

  /* Shadows need to be lighter in light mode */
  --token-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.1);
  --token-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.15), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
  --token-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.15), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
  --token-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.08);
  --token-shadow-glow: 0 0 20px rgba(8, 145, 178, 0.3);
}

/* ===== High Contrast Theme ===== */
@media (prefers-contrast: high) {
  :root {
    --token-border-default: #ffffff;
    --token-border-strong: #ffffff;
    --token-text-primary: #ffffff;
    --token-text-secondary: #ffffff;
  }

  [data-theme="light"] {
    --token-border-default: #000000;
    --token-border-strong: #000000;
    --token-text-primary: #000000;
    --token-text-secondary: #000000;
  }
}

/* ===== Utility Classes for Design Tokens ===== */

/* Spacing Utilities */
.p-0 { padding: var(--token-space-0); }
.p-1 { padding: var(--token-space-1); }
.p-2 { padding: var(--token-space-2); }
.p-3 { padding: var(--token-space-3); }
.p-4 { padding: var(--token-space-4); }
.p-6 { padding: var(--token-space-6); }

.m-0 { margin: var(--token-space-0); }
.m-1 { margin: var(--token-space-1); }
.m-2 { margin: var(--token-space-2); }
.m-3 { margin: var(--token-space-3); }
.m-4 { margin: var(--token-space-4); }
.m-6 { margin: var(--token-space-6); }

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

.font-medium { font-weight: var(--token-font-weight-medium); }
.font-semibold { font-weight: var(--token-font-weight-semibold); }
.font-bold { font-weight: var(--token-font-weight-bold); }

/* Border Radius Utilities */
.rounded-sm { border-radius: var(--token-radius-sm); }
.rounded-md { border-radius: var(--token-radius-md); }
.rounded-lg { border-radius: var(--token-radius-lg); }
.rounded-full { border-radius: var(--token-radius-full); }