.banner-oferta {background: linear-gradient(135deg, #e63946, #ff7f50);color: #fff;text-align: center;padding: 50px 20px;border-radius: 15px;box-shadow: 0 5px 15px rgba(0,0,0,0.2);margin: 20px auto;max-width: 900px;}.banner-oferta h1 {font-size: 3rem;margin-bottom: 15px;font-weight: 800;text-transform: uppercase;letter-spacing: 2px;}.banner-oferta h2 {font-size: 1.5rem;max-width: 700px;margin: 0 auto;line-height: 1.6;}