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No.264 · Forms

Glass Lid

Read-only settings kept under a pane of glass. Edit lifts the lid on its top edge and the values become fields in place; Save lowers it. A section someone else manages keeps its lid shut and says who holds the key.

The prompt

The design brief behind this component — reuse it to regenerate, remix, or explain it.

Build a settings section with a read mode and an edit mode, where the difference is a physical one: in read mode the values sit under glass. <GlassLid title description fields={[{ id, label, value, type?, hint?, required? }]} onSave lockedBy? theme motion />. It is a <form> with a header (title, description, and an Edit button or, when lockedBy is set, a small lock and "Managed by …"). Below the header is the case: a definition list of label/value rows separated by hairlines, and over it an absolutely positioned pane. The pane is restrained glass, not frosted blur: a 1px frost-blue inset edge, a 1px white top bevel, a faint vertical tint, and one skewed reflection band inside it. It has pointer-events: none, so values can still be selected and copied. Edit hinges the pane on its top edge: the case has perspective: 1100px (origin at the top), and the pane goes from rotateX(0) to rotateX(-89deg) over 640ms, so it swings back on its hinge and recedes to a foreshortened sliver above the rows, like the propped lid of a display case. At the same time each value becomes an input in exactly the same place (same 34px line box), and focus moves to the first field. A footer with Cancel and Save appears. Save is disabled until something has changed. Save calls onSave(values): while it runs the fields are disabled and the button reads "Saving…". If it resolves, the lid lowers and focus returns to Edit; if it throws, the lid stays open and the message shows in a role=alert line. Escape or Cancel discards and lowers the lid. Below 480px, rows stack label over value. Reduced motion (the media query, or motion="reduced") skips the hinge and fades the pane out. Paper and Night themes.

Notes

Interaction
Press Edit to lift the lid and edit in place; Save or Cancel lowers it. Escape cancels. The locked card can't be opened.
Motion
The lid hinges on its top edge, rotateX 0 → -89° in 640ms on an ease-out, and lowers the same way. Nothing else moves.
Accessibility
A real <form> with labelled inputs; focus goes to the first field on edit and back to Edit on close. A status region announces editing, saved and discarded. Errors use role=alert. The pane is aria-hidden and never blocks pointer or text selection. Locked sections say who manages them, in text.
Responsive
Rows stack below 480px; the lid scales with the case.

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301 components