DESIGN
Light theme only, including when the phone uses Dark Mode.
Background #F5F8FC, pale blue surfaces #E3ECF8, dark navy text #192D4A, secondary text #526581, dividers #C7D5E7, primary buttons #315AB7 with white text.
Use Newsreader serif for “Kaysia,” page titles and large countdown digits. Use the platform sans serif for controls and body text. Countdown 102px, titles 40px, wordmark 31px, body 17px, buttons 16px medium, metadata 13px. Use tabular digits.
Use 24px page margins and generous spacing. Buttons should be compact rounded capsules with at least 44px touch targets. Saved timers are plain rows separated by fine lines.
The main visual is a large apricot glass hourglass mascot against a pale blue architectural shape aligned right, with a strongly rounded top-left corner. Give the mascot roughly 260px of height. Keep the layout airy and asymmetrical.