:root {
  /* Typography - Fonts */
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: Menlo, Monaco, "Courier New", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Typography - Sizes */
  --text-page-title: 32px;
  --text-book-title: 20px;
  --text-section-header: 12px;
  --text-body: 16px;
  --text-meta: 13px;
  --text-author: 16px;
  --text-button: 14px;

  /* Typography - Colors */
  --color-page-title: #2d2d2d;
  --color-book-title: #2d2d2d;
  --color-section-header: #6b6b6b;
  --color-body: #3d3d3d;
  --color-meta: #888888;
  --color-author: #666666;

  /* Button Colors */
  --color-primary: #4a7c59;
  --color-primary-hover: #3d6b4d;
  --color-secondary-text: #666666;
  --color-secondary-border: #cccccc;
  --color-destructive: #888888;
  --color-disabled-bg: #d4c5b5;
  --color-disabled-text: #999999;

  /* Backgrounds */
  --bg-primary: #f5f1eb;
  --bg-card: #fffefb;
  --bg-secondary: #faf8f5;

  /* Borders */
  --border-strong: #3d3228;
  --border-default: #c4b5a0;
  --border-light: #ddd5c7;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Animation */
  --transition-fast: 150ms ease-out;
}