The app header collapses to one quiet row on phones and tablets

On phones the header was eating a third of the first screen before your day even started. Our design committee (mobile, UX, and product) consolidated it:

• One row now: the sunrise mark on the left, your tabs scrolling in the middle, and the streak flame and your account on the right — under half the height it was.
• The wordmark, date line, and your name stepped back; inside the app you already know where you are and who you are. The flame stayed on purpose — your streak is the point.
• Tablets in portrait get the same row, where every tab fits with room to spare. Desktop is unchanged.