Lukačin brand kit

Three forms: wordmark (text alone), mark (standalone symbol), logo (combined).
Each form is supplied as transparent SVG and PNG, for light and dark backgrounds.
Light: ink #22251f, heart #a64127. Dark: ink #faf8f4, heart #c84f42.
The mode names identify the intended background; no background is included.
PNG dimensions: wordmark and combined logo are 2400 pixels wide with proportional
height; standalone marks are 1024 x 1024 pixels. SVGs scale without quality loss.
Typography uses Roboto outlines; no installed font is needed to display the SVGs.
The included Roboto OFL license covers the source typeface.
The approved mark geometry is preserved from src/brand-mark.json.
