/* ==========================================================================
   Tools Hub - Design System Tokens & CSS Custom Properties
   ========================================================================== */

:root {
  /* Brand Colors */
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: rgba(37, 99, 235, 0.08);
  --primary-glow: rgba(37, 99, 235, 0.25);
  --primary-contrast: #FFFFFF;

  --secondary: #7C3AED;
  --secondary-hover: #6D28D9;
  --secondary-light: rgba(124, 58, 237, 0.08);
  --secondary-glow: rgba(124, 58, 237, 0.25);

  /* Status Colors */
  --success: #10B981;
  --success-light: rgba(16, 185, 129, 0.1);
  --warning: #F59E0B;
  --warning-light: rgba(245, 158, 11, 0.1);
  --danger: #EF4444;
  --danger-light: rgba(239, 68, 68, 0.1);

  /* Light Theme Surface & Text */
  --bg-main: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F9;
  --bg-surface-subtle: #F8FAFC;
  --bg-input: #FFFFFF;

  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-subtle: #94A3B8;

  --border-color: #E2E8F0;
  --border-focus: #2563EB;
  --divider-color: #E2E8F0;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SFMono-Regular', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;

  /* Layout */
  --max-width: 1240px;
  --header-height: 72px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
  --primary: #3B82F6;
  --primary-hover: #60A5FA;
  --primary-light: rgba(59, 130, 246, 0.15);
  --primary-glow: rgba(59, 130, 246, 0.3);
  --primary-contrast: #FFFFFF;

  --secondary: #8B5CF6;
  --secondary-hover: #A78BFA;
  --secondary-light: rgba(139, 92, 246, 0.15);
  --secondary-glow: rgba(139, 92, 246, 0.3);

  /* Dark Theme Surfaces */
  --bg-main: #0B1120;
  --bg-surface: #131E35;
  --bg-surface-elevated: #1A2845;
  --bg-surface-subtle: #0F172A;
  --bg-input: #0F172A;

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-subtle: #64748B;

  --border-color: #203050;
  --border-focus: #3B82F6;
  --divider-color: #1E293B;

  /* Dark Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
}