Zen Meditation App UI

UI/UX mobile app design for a {type: minimalist meditation and breathing app} called {name: "Zen"}.

Visuals:
- {style: Extreme minimalism with no hard borders or shadows, only soft color washes}
- {elements: A single "Breathing Circle" in the center that expands and contracts}
- {background: A clean "Foggy White" or "Light Moss Green" background}
- {icons: Elegant single-weight line icons for "Soundscapes", "Timer", and "Profile"}

Layout:
- {timer: Large, elegant Roman numerals for the remaining session time}
- {typography: A thin, spacious sans-serif font like "Montserrat" with high tracking}
- {palette: Moss Green, Mist White, and Slate Grey}

Technical:
- {resolution: 4k sharp UI render}
- {atmosphere: Spacious, silent, pure, and meditative}

Style: {aesthetic: Oak / Calm / Headspace meets Japanese Minimalism}