Create a square discount poster in Spanish with a large number and clear commercial hierarchy.
Style: modern typography, curved ribbon with cut corners and soft offset shadows.
Design: square composition with 45% dominant and two information strips below.
Main text: "45% DESCUENTO", "EN PRENDAS SELECCIONADAS", "SOLO ESTA SEMANA".
Language: Spanish only; do not translate and maintain correct spelling.
Changes: use deep violet, mint green, cream, and black with a completely new layout.
Background: warm cream with large violet curves and green accents.
Remove: marks, logos, URLs, watermarks, QR codes, author credits, and fine print.
Avoid: exact copying, original colors, random text, errors, and brand elements.