Stillness

Build "Stillness", a breathing and meditation app. The home screen is a soft gradient sky that slowly shifts color, with a large glowing orb in the center. Tapping Start begins a guided breathing session: the orb grows while breathing in and shrinks while breathing out, with the words "Breathe in", "Hold" and "Breathe out" fading under it and a short haptic pulse at each change. The user can choose a pattern (Box 4-4-4-4, Relax 4-7-8, Energize 6-2) and a length (1, 3 or 5 minutes). Before and after a session, a quick mood check-in with five faces is saved to a history. A Sessions tab lists short guided sessions grouped by mood (Stressed, Tired, Focused, Can't sleep) with cover art made from gradients. A Sleep tab mixes ambient sounds (rain, waves, forest, night) with a volume slider each and a sleep timer. A Profile tab shows the current streak, minutes this week as a bar chart and the mood history. Seed realistic sample history so the app opens straight into the experience, with no sign-in or empty state. Make it calm and beautiful: smooth spring animations, gentle haptics, large readable type.