mirror of
https://github.com/olehomelchenko/astrolabe.git
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129 lines
4.1 KiB
CSS
129 lines
4.1 KiB
CSS
@import './tokens.css';
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/*
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* IBM Plex, self-hosted via @fontsource — offline/PWA safe, never a CDN
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* (docs/architecture/09 §3.1). Sans: 400 body, 600 emphasis/headings, 300 for
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* large display only. Mono: 400 editor/code, 500 for emphasis. Keep weights
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* minimal — add one only when a surface needs it.
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*
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* The family-level import pulls every script subset (latin, latin-ext, cyrillic,
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* greek, vietnamese). We keep them all: user data — snippet names, dataset
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* values, chart labels — can be in any language, and Plex must render it rather
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* than fall back to system-ui. @font-face `unicode-range` means the browser only
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* *downloads* the subset a glyph needs, so the unused subsets cost nothing at
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* runtime; they only add to the offline precache, which is the price of working
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* internationally offline. Vite bundles the woff2 and Workbox precaches them
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* (woff2 is in the PWA globPatterns — see vite.config.ts).
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*/
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@import '@fontsource/ibm-plex-sans/300.css';
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@import '@fontsource/ibm-plex-sans/400.css';
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@import '@fontsource/ibm-plex-sans/600.css';
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@import '@fontsource/ibm-plex-mono/400.css';
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@import '@fontsource/ibm-plex-mono/500.css';
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* {
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box-sizing: border-box;
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}
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html,
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body,
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#app {
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height: 100%;
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margin: 0;
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}
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body {
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font-family: var(--font-sans);
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font-size: var(--font-size-base);
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/* Plex "requires space to breathe" — keep body line-height generous (doc §3.1). */
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line-height: 1.45;
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color: var(--text);
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background: var(--bg);
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/* Repaint chrome on theme flip; neutralized under reduced-motion below. */
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transition:
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background var(--dur-moderate) var(--ease),
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color var(--dur-moderate) var(--ease);
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}
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/*
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* Shared keyboard focus ring — always visible, accessibility is non-negotiable
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* (doc §4, principle 4). Components may override the offset (e.g. inset on
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* fields) but should not remove it.
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*/
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:where(button, input, select, textarea, a, [tabindex]):focus-visible {
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outline: 2px solid var(--focus);
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outline-offset: 2px;
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}
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/*
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* Field baseline (arch 09 §4) — the quiet field: a fill one step off its surface
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* plus a bottom border only, no box. The fill comes from the contextual --field
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* token (elevated surfaces set `--field: var(--field-02)` on their container,
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* the same mechanism as --control-hover-fill); the underline is --border-strong,
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* which meets 3:1 non-text contrast in both themes. Declared once here at zero
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* specificity (:where) so modules add only their idiosyncrasies — width, mono
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* font, padding — never a competing border recipe. Monaco's internal widgets
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* (find/replace inputs) keep their own styling and are excluded.
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*/
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:where(
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input:not([type]),
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input[type='text'],
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input[type='search'],
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input[type='number'],
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input[type='url'],
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textarea
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):where(:not(.monaco-editor *)) {
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font: inherit;
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color: var(--text);
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background: var(--field);
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border: none;
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border-block-end: var(--border-width) solid var(--border-strong);
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border-radius: var(--radius);
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}
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:where(input, textarea)::placeholder {
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color: var(--text-placeholder);
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}
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/* On a field the ring hugs the box — an offset ring reads as a second border
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where there is no longer a box to anchor it. */
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:where(
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input:not([type]),
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input[type='text'],
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input[type='search'],
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input[type='number'],
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input[type='url'],
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textarea
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):where(:not(.monaco-editor *)):focus-visible {
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outline-offset: -2px;
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}
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@media (prefers-reduced-motion: reduce) {
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*,
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*::before,
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*::after {
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animation-duration: 0.01ms !important;
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transition-duration: 0.01ms !important;
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}
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}
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/*
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* Visually-hidden but available to assistive tech — the standard sr-only recipe.
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* Used for polite `aria-live`/`role="status"` announcements whose visible
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* confirmation lives elsewhere (e.g. Copy Reference shows "Copied" on the button
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* for sighted users; this announces it to a screen reader). See
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* docs/architecture/10 → Toast copy (the "toast only what can't be seen" rule).
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*/
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.visually-hidden {
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position: absolute;
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width: 1px;
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height: 1px;
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margin: -1px;
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padding: 0;
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border: 0;
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overflow: hidden;
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clip: rect(0 0 0 0);
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clip-path: inset(50%);
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white-space: nowrap;
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}
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