Skip to content

No.224 · Authentication

Boarding Pass Sign-in

Signing in as checking in. The form is a boarding pass — email as passenger, password as passcode. Board, and a barcode prints onto the stub bar by bar, the plane crosses the route, and the stub tears away along the perforation to reveal your gate. Bad details get an ink stamp and precise field errors.

The prompt

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

Build a sign-in form designed as a boarding pass. Shape: a two-column grid — the pass (form) and a 13.5rem stub — joined by a perforation. Each half is masked with two radial gradients (11px punched notches at the top and bottom of the seam), intersected with mask-composite, and the stub has a 2px dashed seam. A drop-shadow filter on the wrapper shadows the masked outline. Under 640px the stub moves below the pass and the notches and seam run across. Pass: a navy band with the airline mark ("Vitrine Air") and "Boarding pass · Sign in"; a route row, MCT Muscat → ATL Vitrine, with a dashed path and a plane icon that flies across on success. Fields are ticket fields: a mono small-caps label ("Passenger · email", "Passcode · password"), an underline input, a Show/Hide button (aria-pressed) for the password, and real error text linked with aria-describedby and aria-invalid. Then "Forgot your passcode?" and a Board pill button. Stub: passenger name (from the email), gate and seat (dashes until boarded), and a barcode of 34 bars whose widths come from an FNV hash of the email, so the same address always prints the same code. Flow: validate (email shape; 8+ characters). On failure, or when onSignIn rejects, press a "Check details" stamp onto the pass — a 3px rounded border in red, mono caps, rotated −9°, ink thinned with an feTurbulence mask, multiply-blended — scaling in from 1.7 with an overshoot (340ms), re-keyed each attempt; editing a field removes it. On success the barcode prints bar by bar (scaleY from the bottom, 22ms stagger) while the plane flies the route (1.1s); then the stub tears away, hinged at the perforation's top — a 7° swing, then a fall with rotation and fade (900ms, ease-in) — and the pass shows "Welcome aboard, Hamza." with Gate, Seat and Boarding. Focus moves to that heading and a polite status announces it. The demo accepts any 8+ characters and refuses "wrongpass". Paper and Night.

Notes

Interaction
Fill in the pass and press Board. Leave a field empty, or use the passcode “wrongpass”, to see the stamp.
Motion
Stamp 340ms with overshoot; barcode bars 160ms with a 22ms stagger; plane 1.1s across the route; stub tear 900ms.
Accessibility
A real form with labelled inputs, aria-invalid and aria-describedby errors, a Show/Hide toggle with aria-pressed, a polite status for checking and success, and focus moved to the welcome heading. The stamp, stub and route are decorative and aria-hidden; errors are always in text. Reduced motion makes every step instant.
Responsive
Two columns from 640px; below that the stub sits under the pass with a horizontal perforation.
On touch
Identical on touch.

Featured

01Glassbreak ButtonA solid plate that fractures from one impact point, cracks racing outward as the shards drift apart.04Liquid GlassA capsule of glass that bends what's behind it, carries a specular highlight around its rim toward your pointer, and squashes like a drop of liquid when pressed.07Phosphor Glass ButtonA liquid-glass pill that senses you coming: its rim light turns to face the cursor and the pill leans in to meet it.08Iris ShutterAn async button with a camera iris for a status light — blades close and turn while it works, then open onto the result.
81Atmosphere CardSmoked-glass link cards: colour pooled in the corners, slow contour currents underneath, a field that leans toward you.93Eclipse Event CardAn editorial event plate with an oversized date and an orbital eclipse bleeding in from the right, alive with slow drift.94Specimen CardAn object mounted under glass: hover lifts the pane with a sweep of reflection and swings out a paper catalogue tag.
95Silk FieldDomain-warped light that pours like liquid silk, with an optional glass lens that refracts the flow under your cursor.106IsobarA living weather map — contour lines traced over a drifting pressure field, with your cursor as a system of its own.
151Prompt ComposerA chat composer where attached files tuck into its top edge like tabs in a folder — they rise from behind it when added and sink back when removed. Send turns into stop while the reply streams.157Aura FieldA writing field where colour only exists while the AI is touching your text: the edge becomes a turning band of light and the words are rewritten in place, one by one, out of a soft blur.
205Halftone CTAA tall CTA banner where slow gold paint drifts beneath a fixed halftone grid, visible only through the dots.
212Nocturne Sign-inA single quiet column on near-black with a breathing seam of frost light behind it — email, password, magic link, nothing more.222Sigil Sign-inA split sign-in whose left half grows a geometric mark from your email — the same address always draws the same sigil.
275Voices CarouselA testimonial exhibition: one large quote at a time on frosted glass, crossfading between voices without ever resizing.
279Feral TitleA brutal condensed wordmark — heartbeat in the dark, letters slam in, a gash tears through and the word bleeds.
301 components