Online course website, modern digital space, futuristic neon lights, sleek lines, minimalist background, coding screens, laptop, coffee cup, notes, keyboard, mouse, ergonomic chair, male teacher, 30s, casual wear, glasses, short beard, serious expression, teaching gesture, whiteboard markers, colorful diagrams, infographics, wireframes, sitemap, CSS code snippets, terminal windows, syntax highlighting, dark mode, coding fonts, pixel perfect design, clean typography, subtle animations, interactive elements, hover effects, scrolling interactions, mobile responsive design, retina ready graphics.