Clean horizontal brand logo, navy serif typeface, wave and dolphin silhouette AI Image Prompt

Create a clean horizontal circle or software brand logo on a pure white background, centered with generous empty space. The main wordmark reads {argument name="brand name" default="PastelSoft"} in an elegant thin high-contrast serif typeface, with very wide letter spacing, dark navy blue lettering, and a refined premium feel. Place the text across the middle of a wide landscape canvas, approximately 1200 by 515 pixels. Under the wordmark, draw one single delicate flowing wave line in pale cyan-blue, starting very thin at the far left, gently rising and dipping beneath the letters, then tapering toward the right. At the far right above the wave, add exactly one small dolphin silhouette in a soft pastel aqua gradient, angled as if leaping to the right, positioned just after the final letters. Use a minimal airy composition with no border, no shadows, no additional icons, no extra text, and no background pattern. The overall mood should be calm, oceanic, pastel, lightweight, and professional.