v0.1.17

CSS var() Fallback Parsing

Fixed parsing of CSS custom property var() functions with complex fallback values
containing commas. The parser now correctly handles:

• Font-family lists: Comma-separated font names including quoted fonts with spaces
  font-family: var(--font-family, FooFont, 'Bar Font', sans-serif);
• Nested function calls: Functions like rgba() that contain commas as part of the
  fallback value
  box-shadow: var(--shadow, 1px 2px rgba(0, 0, 0, 0.5));
• Mixed value types: Any combination of unquoted identifiers, quoted strings, and nested
  functions

What's Changed

• fix(css): var() fallback parsing by @bennypowers in #60

Full Changelog: v0.1.16...v0.1.17