Untitled AI art by @animated-owl3

Design a colorful, eye-catching front book cover for girls ages 8 to 12. The cover should be vertical, sized 1762 x 2625 pixels (5.875 x 8.75 inches at 300 DPI), with safe margins for printing. The theme is fun, smart, and creative activities. Include a central, playful title in a big friendly font: The Big Activity Book for Brilliant Girls The subtitle should be placed below the title in a smaller, clean font, with a transparent background: Mind-stretching games, logic puzzles, cut-out crafts, sudokus, word searches, mazes, coloring, drawing, journal prompts and more for girls ages 8 to 12 (Activity Books for Kids) The design should include elements that girls love, like doodles, stars, hearts, books, colored pencils, or magical creatures. It should be black-and-white-print friendly or fully colored depending on the final style chosen. No text outside the safe margins. No logos or author name.