Mobile only (<=639px); desktop markup untouched.
Bug fix: the Back/Next bar was fixed-positioned inside the screen
entrance animation's transformed wrapper, so it painted under the content
and jumped to the viewport bottom about a second in. It is now portalled
to <body> and only fades in, pinned to the bottom from the first frame.
The other fixed/sticky elements (tab bar, drawer, sheets, install sheet)
were checked and live outside the animated wrappers.
- The step name is now the large headline with a one-line description;
the repeated page title is dropped on phones. Thin progress bar + 1/3.
- Step 1: formats/limits hint, one big dashed Add photos or files area
(plus icon), Camera and Paste text instead as secondaries, and a
'nothing added yet' placeholder that becomes the thumbnail/chip list.
- Next is disabled until a photo, file or pasted text exists; step 3 can
never be reached empty.
- Step 1 shows Cancel (back to the Library) instead of a dead Back.
- Step 3 is a real summary: thumbnail/chip strip plus Files, Difficulty,
Activities and Folder rows, each with an Edit link to its step; Freeze
is the single primary action.
- Step 2 got a visible Difficulty label and a helper line under every
group, defaults still preselected.
- Bottom chrome: flat full-width Back/Next bar above the safe area, and
the tab bar hides inside both wizards. The lower-right orb is hidden on
phones so it can never glow behind the bar.
- Make my homework matches: headline, hint, big add area, placeholder,
Cancel, gated Next, flat bar.
Verified: new wizard suite 80/80 (bar position sampled at 5 frames during
the entrance from tab bar/drawer/empty state; 360 + 390, dark + light,
EN + CS, reduced motion on/off; gating, summary Edit links, hidden tab
bar and orb), declutter 116/116, regression 74/74, mobile 52/52,
animation 8/8, i18n 25/25. Lint + build clean. SW freezmo-v22.