Instrument Sans: Instrument / Rodrigo Fuenzalida. SIL OFL 1.1. Official source https://github.com/Instrument/instrument-sans ; license OFL-Instrument-Sans.txt. Website layout, copy, code and wordmark created for STEIN TECNOLOGIA. The previously presented illustrative interface studies were removed from the public page at the owner’s request. Technology banner image: Oxana Golubets (@ok_milka), Abstract waves with light and shadows, published 15 July 2025. Primary source https://unsplash.com/photos/abstract-waves-with-light-and-shadows-cdI3mxAQXZg . The primary page identifies this work as a free image/3D render under the Unsplash License. Commercial use permitted by https://unsplash.com/license (verified 2026-11-03). Download https://images.unsplash.com/photo-1752606402425-fa8ed3166a91?fit=crop&fm=webp&q=78&w=1600 . Decorative translucent-material/light artwork; not a STEIN facility, product, client project or generated company achievement. Image is served locally; the website CSS supplies the purple overlay. No external runtime image request. Mobile variant: same original artwork, https://images.unsplash.com/photo-1752606402425-fa8ed3166a91?fit=crop&fm=webp&q=75&w=800 . Both image variants downloaded 2026-11-03; no paid asset or API. Source visually inspected before selection. STEIN TECNOLOGIA logo: PNG supplied by the business owner on 2026-11-03 for use on this website. Original file preserved; the browser frames its outer whitespace using CSS.