A mystic logo design for a witchcraft shop named "GRIMOIRE". The central asset is a powerful magical bindrune symbol that combines an occult star, protective Nordic runes, and alchemical signs into one cohesive emblem. Dark fantasy style. The text "GRIMOIRE" is clearly written below the symbol in a sharp, elegant runic or gothic font. Color palette: deep obsidian black and glowing neon violet. Clean lines, dark background, vector graphic masterpiece.
