The reader chrome used the same dimensions at every screen size, and the book viewport offset was hardcoded to 52px. This made the header/footer oversized on phones and left the body text flush against (or overlapping) the bars, with no handling for notched-device safe areas.
- Add viewport-fit=cover so notched devices expose safe-area insets.
- Shrink the top bar on mobile (px-3 py-2 / text-base, scaling up at sm:) and hide the chapter title on phones (hidden sm:block sm:truncate).
- Shrink the bottom bar on mobile (tighter padding/gap, p-1.5 sm:p-2 on buttons) while keeping all controls visible.
- Replace the hardcoded top-[52px] bottom-[52px] viewport offsets with responsive calc() values (44/48px mobile, 60px at sm:) that fold in env(safe-area-inset-*), plus matching safe-area padding on the bars, so the book content always clears the chrome with a visible margin.
Regenerates reader_templ.go and rebuilds style.css.