components/base.css

Design

Colors, depth, type, icons and sound -- the tokens every component reads. Nothing here is a hardcoded value, which is why one theme switch is enough.

Color

Every color in the app is one of these custom properties. A hardcoded hex is a dark-mode bug by definition -- flip the theme in the bar and watch each swatch move.

Surfaces

base.css

The page and the things resting on it.

--background

--foreground

--card

--popover

--muted

--accent

Actions

base.css

What a control is made of.

--primary

--secondary

--destructive

--border

--input

--ring

Status

base.css

Meaning, not decoration -- each pairs with its own foreground.

--success

--warning

--info

Charts

base.css

Five series colors, in order.

--chart-1

--chart-2

--chart-3

--chart-4

--chart-5

Radius

base.css

One scale, and a nested element's radius is the outer one minus its padding -- concentric, never guessed.

--radius-md

--radius

--radius-lg

--radius-xl

Depth

Eight elevation tokens, one light source above the page, and they flip for dark. A focus ring composes on top of the resting shadow rather than replacing it.

The scale

base.css

--shadow-field

Flat form fields: just enough to separate from the page

--shadow-well

Recessed tracks the thumbs travel in

--shadow-control

Raised controls: the full six-layer button anatomy

--shadow-thumb

Grabbable thumbs floating over a well

--shadow-raised

Chrome sitting on a surface rather than above it

--shadow-card

Surfaces resting on the page

--shadow-popover

Menus and popovers

--shadow-modal

Top of the scale: dialog and drawer panels

Press collapses depth

button.css

A button rests raised and collapses when pressed -- the depth is at rest, not on hover. Hold one down.

Rings compose

input.css

Focus this field: the ring is added to the field's own shadow, so the control does not go flat the moment it matters.

Type

Two variable faces, two tokens. Never a family name in a sidecar, never a font stack, and never font-variation-settings -- weight is plain font-weight on both.

Manrope, the text face

base.css

var(--font-sans). One file answering to any weight from 200 to 800, subset to Latin.

200The quick brown fox jumps

300The quick brown fox jumps

400The quick brown fox jumps

500The quick brown fox jumps

600The quick brown fox jumps

700The quick brown fox jumps

800The quick brown fox jumps

Inconsolata, the code face

base.css

var(--font-mono), 200 to 900, with a slashed zero. Both faces carry a size-adjust tuned to the same effective x-height, which is what makes text and code read optically equal side by side.

300if err != nil { return 0, err }

400if err != nil { return 0, err }

500if err != nil { return 0, err }

700if err != nil { return 0, err }

900if err != nil { return 0, err }

Tabular numbers

base.css

Both faces keep tnum, so a column of figures lines up instead of shimmering. Left is tabular, right is proportional.

1.111,00

8.888,88

4.010,50

9.999,99

1.111,00

8.888,88

4.010,50

9.999,99

The scale in use

typography.go

Heading two

Heading three

Body text, set in Manrope at the weight the token asks for. Neither face has a real italic upstream, so emphasis is the browser's synthetic slant -- deliberate, and the reason font-synthesis is not switched off wholesale.

Muted, for the sentence that supports the one above it.

Icons

The whole Phosphor set ships in static/svg, but not as stock regular: every closed glyph carries a lit body under its outline, so it reads as a solid face catching the same light as everything else.

Lit: closed glyphs

icon.go

A body underneath the outline, a highlight down the top-left, a shade on the bottom-right, and a shadow cast on the page.

Flat: open glyphs

scripts/icons3d.py

Around 370 arrows, checks and math signs are left flat on purpose -- a wire has no face to light, and faking one just makes it muddy.

Sizes follow the text

icon.go

An icon is currentColor and 1em, so it takes the size and color of whatever it sits in. The gradient is a document-level resource -- an icon rendered outside a Base page comes out unlit.

Four knobs, no filters

base.css

--icon-bodyhow heavy the tint sits -- the one that moves the needle
--icon-litthe highlight on the top-left face
--icon-shadethe shade on the bottom-right
--icon-castthe shadow thrown on the page

Retune these, never a per-icon filter. Browse names at phosphoricons.com; the committed SVGs are the artefact.

Sound

Twenty-six cues, no audio files. Sine layers rendered live with Web Audio, so there is nothing to fetch, decode or preload. Press any of them.

The palette

base.js

data-sound="name" on any Button picks a cue; data-sound="none" silences a component that plays its own. An unknown name is a silent no-op.

Your control over it

sound-settings.go

Every cue has a visual equivalent, the whole palette can be switched off, volume is independent, and prefers-reduced-motion silences it without being asked.

Interface sounds

Volume

100%

Where they come from

base.js

The palette is the minimal library by Raphael Salaja (MIT), vendored as the PATCHES table in base.js and inlined by Base. _ps.play("name") is the whole API -- never hand-roll an AudioContext, and never invent a cue name.