/* Global CSS Variables - Light/Dark Theme */

:root {
  /* Light theme (default) */
  --color-canvas: #ffffff;
  --color-canvas-subtle: #f5f5f5;
  --color-canvas-inset: #f0f0f0;
  --color-ink: #1a1a1a;
  --color-ink-subtle: #666666;
  --color-link: #0066cc;
  --color-link-hover: #0052a3;
  --color-border: #e0e0e0;
  --color-border-subtle: #f0f0f0;
  
  /* Status colors */
  --color-success: #22c55e;
  --color-success-bg: #dcfce7;
  --color-danger: #ef4444;
  --color-danger-bg: #fee2e2;
  --color-warning: #f59e0b;
  --color-warning-bg: #fef3c7;
  --color-info: #3b82f6;
  --color-info-bg: #dbeafe;
  
  /* Focus */
  --focus-ring-color: #0066cc;
  --focus-ring-size: 2px;
  
  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-14: 3.5rem;
  --space-16: 4rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
}

/* Dark theme via data attribute */
[data-theme="dark"] {
  --color-canvas: #0d1117;
  --color-canvas-subtle: #161b22;
  --color-canvas-inset: #21262d;
  --color-ink: #f0f6fc;
  --color-ink-subtle: #8b949e;
  --color-link: #58a6ff;
  --color-link-hover: #79b8ff;
  --color-border: #30363d;
  --color-border-subtle: #21262d;
  
  --color-success: #3fb950;
  --color-success-bg: #238636;
  --color-danger: #f85149;
  --color-danger-bg: #da3633;
  --color-warning: #d29922;
  --color-warning-bg: #9e6a03;
  --color-info: #58a6ff;
  --color-info-bg: #1f6feb;
  
  --focus-ring-color: #58a6ff;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* Dark theme via prefers-color-scheme (only when no explicit theme is set) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --color-canvas: #0d1117;
    --color-canvas-subtle: #161b22;
    --color-canvas-inset: #21262d;
    --color-ink: #f0f6fc;
    --color-ink-subtle: #8b949e;
    --color-link: #58a6ff;
    --color-link-hover: #79b8ff;
    --color-border: #30363d;
    --color-border-subtle: #21262d;
    
    --color-success: #3fb950;
    --color-success-bg: #238636;
    --color-danger: #f85149;
    --color-danger-bg: #da3633;
    --color-warning: #d29922;
    --color-warning-bg: #9e6a03;
    --color-info: #58a6ff;
    --color-info-bg: #1f6feb;
    
    --focus-ring-color: #58a6ff;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  }
}