"Create an image of a person's hand holding a smartphone with a digital 'International Certificate of Vaccination' for COVID-19 displayed on the screen. The certificate should have a prominent title, a placeholder for the holder's name, a QR code, and some text stating the certification is in accordance with international health guidelines. The background should be a softly focused interior, suggesting a modern office or a café with a laptop and a coffee cup subtly visible. The lighting should be bright, indicative of an indoor setting."