The parts behind bykc.pro
Design system.
A living library of this site’s components, materials, and small details. The examples here use the same code as the portfolio.
Variants & sizes
One component. Three ways to use the lens.| Emphasis | Small40px min. | Medium44px min. | Large48px min. |
|---|---|---|---|
| PrimaryLens by default | |||
| SecondaryPlain by default | |||
| Secondary + lensOptional detail |
For quieter actions
Ghost and text links keep the same component API with less visual weight.
After dark
Saturated teal for the primary, smoky glass for the secondary. The lens keeps its own dark ink.
States & loading
Feedback without changing the layout.Default
Hover
Pressed
Focus
Disabled
Loading
A single reflection
Hover or keyboard focus sends one soft pass across the lens. Pressing gathers light at its lower edge. Nothing shimmers while idle.
A centred loading ring
The ring takes the arrow’s place. A plain button holds its width and centres the ring over the label. Pending actions cannot be triggered twice.
Less motion, same feedback
Reduced motion keeps a visible, still ring and static illumination. Keyboard focus always has a separate outline.
Usage
The shared Astro component.---
import Button from '../components/Button.astro';
---
<Button href="/work/yohoho">Learn more</Button>
<Button variant="secondary">Download</Button>
<Button variant="secondary" inset>Download</Button>
<Button loading>Save changes</Button>
<section data-glass-surface="dark">
<Button>Continue</Button>
<Button variant="secondary">Go back</Button>
</section>| Property | Values | Default | Purpose |
|---|---|---|---|
variant | primary | secondary | ghost | link | primary | Sets visual emphasis. |
size | sm | md | lg | md | 40, 44, or 48px minimum height for glass buttons. |
inset | boolean | Primary: true | Adds the recessed lens; secondary defaults to plain. |
icon | boolean | Matches inset | Shows an arrow. Use with inset={false} for a bare arrow. |
loading | boolean | false | Shows the ring, marks the action busy, and blocks activation. |
disabled | boolean | false | Disables the button or removes a link’s destination. |
surface | light | dark | Inherited | Overrides the surrounding glass surface. |
href | string | None | Renders a link for navigation. |
type | button | submit | button | Use submit for a form action. |
Use a link for navigation and a button for an action. Keep labels specific. An inset is part of the same action, never a separate click target. Add an accessible label when visible text does not describe the action.
See it in use Work ↗
Components / Labels
Status chips
Use a chip for a release stage or a type of work. It has no click action. The dark tint keeps text readable over artwork.
On the page
Over artwork
---
import StatusChip from '../components/StatusChip.astro';
---
<StatusChip tone="dark">Public beta</StatusChip>
<StatusChip size="sm">Artifact</StatusChip>tone: light or dark. size: sm for metadata, md for status. A label stays out of the tab order. Its light still responds to the mouse, but the chip does not lift or press.
See it in use Curated Work ↗
Components / Highlights
Highlights
A teal face, a pulsing dot, and an arrow. The shipped highlight opens two choices. Click it again, click outside, or press Escape to close them.
The same highlight used above the homepage title.
Open and closed
The trigger reports its expanded state. Closed choices cannot receive focus. Escape returns focus to the trigger.
Motion with a purpose
The dot fades over 2.4 seconds. The choices enter in 250ms. Reduced motion keeps the dot and the content still.
---
import ShippedChip from '../components/hero/ShippedChip.astro';
---
<ShippedChip id="release-highlight" placement="below" />Give each instance a unique id. The default placement opens beside the highlight, then below it on narrow screens. Use placement="below" inside a smaller container.
Components / Prompts
Prompts
An icon gives the interaction a cue; the text says what to do. The voice bars stay still until the hero speaks. On the site, their movement comes from the speech animation.
A product designer who likes to build. Glad you found my corner of the internet.
Click the prompt to show a sample caption.
import Prompt from '../components/Prompt';
<Prompt onClick={onHello}>
Psst. Pick an object. I’ll explain.
</Prompt>A React button used by the hero. It accepts button attributes, an action, and a text label. Text wraps on small screens; the icon keeps its size. This sample reveals a caption without starting audio.
Components / Selection
Filters & sorting
One filter is selected at a time. Counts describe each category before filtering. The sort control reverses the date order and keeps the current selection.
17 entries · Oldest first
- It started on Windows, in about two hoursproduct
- Whisper was the obvious choice, and it lostbuild
- The version that typed "wordsmashedtogether"build
- One portable core, thin shells on topbuild
- An interface for the CLIdesign
- The caret macOS could not finddesign
- macOS trusts your terminal, not your toolbuild
- The ticker bar that did not survivedesign
- Two directions I killeddesign
- Why it is a dot matrixdesign
- Cancelling something that cannot be cancelledbuild
- A window that must never take focusbuild
- A second model, only if you want onebuild
- The ship, and why it is waterdesign
- Free, because anyone could build itproduct
- The real limit is social, not technicalthought
- Eight days, because I already knew what I wantedthought
Entries from Yohoho’s case study. Scroll the preview to see the rest.
Selection is explicit
The active filter has a teal face, a heavier label, and aria-pressed="true". These controls filter a list. Tabs that switch panels are a different component.
Room for touch
Controls are at least 44px tall. In this preview, filters wrap and sorting gets its own space on narrow screens. Keyboard users can reach each control and press Enter or Space.
---
import FilterChip from '../components/FilterChip.astro';
import SortControl from '../components/SortControl.astro';
---
<FilterChip selected count={17}>All</FilterChip>
<FilterChip count={6}>Design</FilterChip>
<FilterChip count={0} disabled>Unfiled</FilterChip>
<SortControl direction="asc" />The surrounding list owns filtering and sorting. Update aria-pressed on filters, then the sort control’s data-sort, label, and accessible name together. A zero count disables an unavailable category.
See it in use Yohoho’s record ↗
Foundations
Colour
Values come from the site’s colour tokens.
Typography
Two families. No extras.Design. Build.
Ship. Repeat.
A light slab with room to breathe. Tracking −0.025em; teal punctuation at weight 550.
A little curiosity.
A lot of making.
Open, easy body text at 1.6 line height. The same family handles labels, controls, and code.
Primitives / Material
Frosted glass
Blur softens what sits behind the glass. Tint and grain give the face its texture. A moving reflection and a thin rim make it catch the light. Turn off a layer to see what it contributes.
Frosted glass.
Move the light. Watch the edge.Move your mouse across this surface.
- Light X
- 20%
- Light Y
- 0%
- Angle
- −45°
- Blur
- 7.5px
Mouse position controls the face reflection and the rim together.
How the mouse becomes light
Each glass surface measures the mouse relative to its own centre. That direction rotates the rim’s conic gradient. The same position moves a radial reflection across the face. The component itself does not tilt.
One shared pointer listener batches the updates into an animation frame. It measures every surface first, then writes the lighting values. There is no idle rotation or simulated spring.
Where the frost lives
The face sits on ::before, with a 7.5px backdrop blur and 1.35× saturation. The grain repeats every 102.4px. The rim sits on ::after, masked to leave its centre clear. Text stays above both.
Nested glass darkens its face by 10% at the second level and 18% from the third. The label and bright rim keep their colour.
<!-- BaseLayout supplies the shared lighting listener. -->
<span class="glass glass-label">Public beta</span>
<button type="button" class="glass glass-primary glass-control">
Continue
</button>
/* Component CSS owns its shape and spacing. */
.my-surface { border-radius: 18px; padding: 24px; }
/* The listener writes these values on each surface. */
--glass-light-x: 20%;
--glass-light-y: 0%;
--glass-angle: -45deg;
/* Rim direction from a mouse point relative to the centre: */
angle = atan2(mouseY - centreY, mouseX - centreX) * 180 / PI + 90;The face position is clamped to −30–130% horizontally and −80–180% vertically, so nearby mouse movement can still light an edge. Add data-glass-light="manual" only when a demonstration owns those values itself.
Interaction & motion
| Trigger | Visible response | Timing |
|---|---|---|
| Mouse movement | Face light and rim follow position. Labels remain still. | At most once per animation frame |
| Hover a control | Lift 1px, brighten the rim, deepen the shadow. | 150ms · ease |
| Press a control | Scale to 97.5%. Travel 1px, or 0.4px for primary glass. | 75ms · ease |
| Activate a control | Brightness fades from 1.12 to 1 on the face layer. | 300ms · ease-out |
| Enter a button lens | One reflection pass across the inset. | 260ms · ease-out |
| Keyboard focus | A separate outline identifies the active control. | Immediate |
Touch
Touch does not steer the light. The surface starts with its upper-left reflection. Tapping still gives press and release feedback. The manual controls above let you inspect lighting without a mouse.
Reduced motion
Light stays at X 20%, Y 0%, and −45°. Lift, scale, release flash, and pulsing dots stop. Selection, focus outlines, and open or closed states remain visible.
The material comes from glass.css; the lighting geometry comes from glass-light.ts. These examples use both.