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No.268 · Forms

Etched Field

A text field whose label rises into a notch cut from the top border, with a frost outline that draws in on focus.

The prompt

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

Design a text input that feels engraved. A 56px field with a hairline cream border and 10px radius. The label sits inside the field like a placeholder; when the field is focused or filled it rises 2.1rem and scales to 78% so it lands on the top border, and a 2px strip of the page colour behind it "cuts" the border so the label appears set into a notch. On focus the hairline border is replaced by a frost-blue outline that draws itself in from left to right (clip-path inset over 420ms, ease-out-expo) plus a soft 4px halo. A tiny mono mark at the right shows state in more than colour: ✓ when filled, ! when invalid. Invalid turns the border, label, mark and message rose and shows a role=alert message; a hint can sit below in muted text. It is a real <input> with a real <label>, aria-invalid and aria-describedby wiring, and works with browser autofill (the :not(:placeholder-shown) selector floats the label for autofilled values).

Notes

Interaction
Focus draws the outline and lifts the label; typing sets the check mark; errors swap in the rose state.
Motion
Label rise 280ms ease-out-expo; outline draw 420ms; halo/colour 200–250ms.
Accessibility
Native input + label association; aria-invalid and aria-describedby; state conveyed by icon as well as colour; error is role=alert. Reduced motion shortens transitions to 1ms.
Responsive
Fills its container.

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