Minimal iOS-style app icon, rounded square with soft gradient background (very pale mint to warm light gray). Center a simple clock dial: thick donut ring split into two smooth arcs (green and red). The boundary between arcs forms a subtle “sweep” feeling, with a small gap highlight (tiny white notch) at the transition point. Thin charcoal hand at 12 o’clock. Flat vector, clean lines, no text, no ticks, no numbers, balanced negative space, 1024x1024. no text, no numbers, no complex shapes, no realistic materials, no drop shadow, no bevel, no glow