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json/docs/mkdocs/docs/css/fig-sax.css
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Niels Lohmann a47170346a docs: new design for the documentation site (#5934) 
* docs: new design for the documentation site

Apply the brand to the Material for MkDocs site: Inter and JetBrains Mono
served by the site (upright and real italic), brand colours, blue header band
with the syntax pattern, wordmark in the header, new home page (hero, cards,
animated feature tour), 404 page, polish for tabs, search, footer, focus
rings, tables and code blocks, and theme features (code copy, previous/next
footer, TOC follow, search suggestions).

Draw the number railroad diagram, the parser callback events and the iterator
illustrations as inline SVGs that follow the light and dark scheme. The
generator scripts are in docs/mkdocs/scripts/figures; the feature slideshow
(json-light.svg, json-dark.svg, replacing json.gif on the home page) is built
by docs/mkdocs/scripts/slideshow. Decision nodes in five flowcharts become
hexagons, which need far less room.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* docs: add figures, table captions and a macro chooser

- Figures with numbered captions: SAX stepper, json_view layout and edit
  stepper, exception map, JSON pointer and patch walkers, QA pipeline,
  scaling and binary size charts, roadmap lanes, release timeline,
  integration decision tree and namespace builder
- Table captions (nj-table-caption) on 9 pages
- Compile times: modules and PCH charts, filesystem section, re-measured
  Figure 1, links between features/modules.md and compile_times.md
- Interactive macro chooser for features/arbitrary_types.md
- Link check: exclude URLs that answer the plugin with 400/401/419 or are
  dead (customers.md)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* docs: macro chooser generates adl_serializer for non-default-constructible types

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* docs: cross-link concept pages and API pages in See also sections

Add See also links in both directions between the concept pages (features,
home, integration) and the API pages, write API links in code font, give every
entry a comment after a dash, and show the callback event figure on the parser
callbacks page.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* docs: address review comments on the new design

- Home: add a "Latest release" button
- Sponsors: update the list and group it by tier
- Features: list all feature pages on the index page
- Releases: add highlights per release, link the 4.0 roadmap, add the first commit to the timeline
- Exceptions: prefix all example messages with the exception name
- API: no code font for format names in the See also links of the to_/from_ pages
- Merge Patch: show the document before, the patch, and the result
- Replace "--" with typographic dashes, mark external links with an icon, center Mermaid diagrams

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-10-27 07:41:42 +01:00

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/* figures: sax (SAX event stepper on features/parsing/sax_interface.md, js/fig-sax.js; memory_over_time.svg and
chunk_buffering.svg on features/parsing/large_and_partial_input.md). Event colours are the --cb-* variables of the
parser-callback figure in brand.css, which .nj-fig provides. */
/* ---------- stepper ---------- */
.md-typeset .nj-sax {
display: grid;
grid-template-columns: minmax(0, 1fr);
gap: .9rem 1.4rem;
margin: 1.5rem 0;
padding: 1rem 1.1rem;
border: 1px solid var(--md-default-fg-color--lightest);
border-radius: 8px;
background: var(--md-default-bg-color);
font-size: .74rem;
}
@media screen and (min-width: 45em) {
.md-typeset .nj-sax {
grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
grid-template-areas: "ctl ctl" "text text" "ev state" "status status";
}
.md-typeset .nj-sax > .nj-sax__controls { grid-area: ctl; }
.md-typeset .nj-sax > .nj-sax__lane--text { grid-area: text; }
.md-typeset .nj-sax > .nj-sax__lane--events { grid-area: ev; }
.md-typeset .nj-sax > .nj-sax__lane--state { grid-area: state; }
.md-typeset .nj-sax > .nj-sax__status { grid-area: status; }
}
.md-typeset .nj-sax p { margin: 0; }
.md-typeset .nj-sax .nj-sax__h {
margin: 0 0 .45rem;
color: var(--md-default-fg-color--light);
font-size: .68rem;
font-weight: 600;
letter-spacing: .02em;
}
.md-typeset .nj-sax .nj-sax__h code { font-size: .95em; }
.md-typeset .nj-sax .nj-sax__text code {
display: inline-block;
max-width: 100%;
overflow-x: auto;
padding: .35rem .6rem;
font-size: .95rem;
white-space: pre;
word-break: normal;
}
.nj-sax .nj-sax-unread { color: var(--md-default-fg-color--light); }
.nj-sax .nj-sax-unread--never { color: var(--md-default-fg-color--lighter); text-decoration: line-through; text-decoration-color: var(--md-default-fg-color--lighter); }
.nj-sax .nj-sax-read { color: var(--md-code-fg-color); }
.nj-sax .nj-sax-tok { border-radius: 3px; box-shadow: inset 0 -3px 0 var(--nj-sax-ev, var(--cb-v)); background: color-mix(in srgb, var(--nj-sax-ev, var(--cb-v)) 22%, transparent); }
.nj-sax .nj-sax-tok--os, .nj-sax .nj-sax-ev--os { --nj-sax-ev: var(--cb-os); }
.nj-sax .nj-sax-tok--oe, .nj-sax .nj-sax-ev--oe { --nj-sax-ev: var(--cb-oe); }
.nj-sax .nj-sax-tok--k, .nj-sax .nj-sax-ev--k { --nj-sax-ev: var(--cb-k); }
.nj-sax .nj-sax-tok--as, .nj-sax .nj-sax-ev--as { --nj-sax-ev: var(--cb-as); }
.nj-sax .nj-sax-tok--ae, .nj-sax .nj-sax-ev--ae { --nj-sax-ev: var(--cb-ae); }
.nj-sax .nj-sax-tok--v, .nj-sax .nj-sax-ev--v { --nj-sax-ev: var(--cb-v); }
/* event ticker */
.md-typeset .nj-sax ol.nj-sax__events {
margin: 0;
padding: 0;
list-style: none;
counter-reset: nj-sax;
}
.md-typeset .nj-sax ol.nj-sax__events > li {
position: relative;
margin: 0 0 .2rem;
padding: .12rem .4rem .12rem 2.6rem;
border-radius: 5px;
counter-increment: nj-sax;
line-height: 1.5;
}
.md-typeset .nj-sax ol.nj-sax__events > li::before {
content: counter(nj-sax);
position: absolute;
left: .35rem;
top: .2rem;
width: 1.1rem;
color: var(--md-default-fg-color--lighter);
font-size: .64rem;
font-variant-numeric: tabular-nums;
text-align: right;
}
.md-typeset .nj-sax ol.nj-sax__events > li::after {
content: "";
position: absolute;
left: 1.75rem;
top: 50%;
width: .55rem;
height: .55rem;
margin-top: -.275rem;
border-radius: 50%;
background: var(--nj-sax-ev);
}
.md-typeset .nj-sax ol.nj-sax__events code { background: none; padding: 0; font-size: .8rem; }
.nj-sax .nj-sax-ev--todo { opacity: .42; }
.nj-sax .nj-sax-ev--skip { opacity: .42; text-decoration: line-through; }
.nj-sax .nj-sax-ev--skip::after { background: var(--md-default-fg-color--lighter) !important; }
.nj-sax .nj-sax-ev--cur { background: color-mix(in srgb, var(--nj-sax-ev) 16%, transparent); }
.md-typeset .nj-sax .nj-sax-ev--false > code::after {
content: " \2192 false";
color: var(--nj-red);
font-weight: 600;
}
/* handler state */
.md-typeset .nj-sax pre.nj-sax__tree { margin: 0 0 .6rem; }
.md-typeset .nj-sax pre.nj-sax__tree > code { padding: .5rem .7rem; font-size: .76rem; line-height: 1.45; }
.nj-sax .nj-sax-hit { border-radius: 3px; background: color-mix(in srgb, var(--nj-blue) 22%, transparent); box-shadow: 0 0 0 1px color-mix(in srgb, var(--nj-blue) 55%, transparent); }
.nj-sax .nj-sax-dim { color: var(--md-default-fg-color--lighter); }
.md-typeset .nj-sax .nj-sax__stackh { margin: 0 0 .3rem; color: var(--md-default-fg-color--light); font-size: .66rem; font-weight: 600; }
.md-typeset .nj-sax ol.nj-sax__stack {
display: flex;
flex-direction: column-reverse;
gap: .25rem;
margin: 0 0 .6rem;
padding: 0;
list-style: none;
}
.md-typeset .nj-sax ol.nj-sax__stack > li {
margin: 0;
padding: .2rem .5rem;
border: 1px solid var(--md-default-fg-color--lightest);
border-left: 3px solid var(--nj-blue);
border-radius: 4px;
}
.md-typeset .nj-sax ol.nj-sax__stack > li.nj-sax-dim { border-left-color: var(--md-default-fg-color--lightest); }
.md-typeset .nj-sax ol.nj-sax__stack code { background: none; padding: 0; }
.md-typeset .nj-sax .nj-sax__note { color: var(--md-default-fg-color--light); font-size: .75rem; line-height: 1.5; }
.md-typeset .nj-sax dl.nj-sax__kv {
display: grid;
grid-template-columns: auto minmax(0, 1fr);
gap: .35rem .8rem;
margin: 0 0 .6rem;
}
.md-typeset .nj-sax dl.nj-sax__kv dt { color: var(--md-default-fg-color--light); font-weight: 600; }
.md-typeset .nj-sax dl.nj-sax__kv dd { margin: 0; }
/* controls */
.nj-sax .nj-sax__controls { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; }
.nj-sax .nj-sax__btns, .nj-sax .nj-sax__modes { display: flex; flex-wrap: wrap; gap: .35rem; }
.nj-sax .nj-sax__modes { margin-left: auto; }
.md-typeset .nj-sax .nj-sax-btn {
min-height: 2.2rem;
padding: .3rem .8rem;
border: 1px solid color-mix(in srgb, var(--nj-blue) 55%, var(--md-default-bg-color));
border-radius: 6px;
background: var(--md-default-bg-color);
color: var(--nj-blue);
font: inherit;
font-weight: 600;
cursor: pointer;
}
.md-typeset .nj-sax .nj-sax-btn:hover:not(:disabled) { background: color-mix(in srgb, var(--nj-blue) 10%, var(--md-default-bg-color)); }
.md-typeset .nj-sax .nj-sax-btn--main, .md-typeset .nj-sax .nj-sax-btn[aria-pressed="true"] {
border-color: var(--nj-band);
background: var(--nj-band);
color: #fff;
}
.md-typeset .nj-sax .nj-sax-btn--main:hover:not(:disabled), .md-typeset .nj-sax .nj-sax-btn[aria-pressed="true"]:hover {
background: var(--md-primary-fg-color--light);
}
.md-typeset .nj-sax .nj-sax-btn:disabled { opacity: .4; cursor: default; }
.md-typeset .nj-sax .nj-sax-btn:focus-visible, .nj-sax .nj-sax__stop input:focus-visible {
outline: 2px solid var(--nj-blue);
outline-offset: 2px;
}
.nj-sax .nj-sax__stop { display: inline-flex; gap: .45rem; align-items: center; min-height: 2.2rem; cursor: pointer; }
.nj-sax .nj-sax__stop input { width: 1.05rem; height: 1.05rem; margin: 0; accent-color: var(--nj-red); }
.nj-sax .nj-sax__stop:has(input:disabled) { opacity: .45; cursor: default; }
.md-typeset .nj-sax .nj-sax__status {
padding-top: .6rem;
border-top: 1px solid var(--md-default-fg-color--lightest);
color: var(--md-default-fg-color--light);
font-size: .72rem;
min-height: 2.6em;
}
@media screen and (max-width: 44.984375em) {
.md-typeset .nj-sax { padding: .8rem; }
.md-typeset .nj-sax .nj-sax-btn { min-height: 44px; min-width: 44px; }
.nj-sax .nj-sax__stop { min-height: 44px; }
.nj-sax .nj-sax__modes { margin-left: 0; }
}
@media (prefers-reduced-motion: no-preference) {
.nj-sax .nj-sax__events > li { transition: opacity .2s, background-color .2s; }
}
/* ---------- static SVG figures ---------- */
.md-typeset svg.nj-fig--sax-mem { min-width: 34rem; max-width: 40rem; }
.md-typeset svg.nj-fig--sax-buf { min-width: 36rem; max-width: 42rem; }
.nj-fig .nj-sax-axis { fill: none; stroke: var(--fg-line); stroke-width: 1.5; }
.nj-fig .nj-sax-illus { font-style: italic; }
.nj-fig .nj-sax-curve { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.nj-fig .nj-sax-c-dom { --nj-sax-c: var(--nj-red); }
.nj-fig .nj-sax-c-doc { --nj-sax-c: var(--nj-hl-type); }
.nj-fig .nj-sax-c-cb { --nj-sax-c: var(--nj-hl-number); }
.nj-fig .nj-sax-c-sax { --nj-sax-c: var(--nj-blue); }
.nj-fig .nj-sax-curve.nj-sax-c-doc { stroke-dasharray: 9 5; }
.nj-fig .nj-sax-curve { stroke: var(--nj-sax-c); }
.nj-fig .nj-sax-lab { fill: var(--nj-sax-c); font-size: 14.5px; font-weight: 700; }
.nj-fig .nj-sax-old { fill: color-mix(in srgb, currentColor 10%, var(--md-default-bg-color)); }
.nj-fig .nj-sax-new { fill: color-mix(in srgb, var(--md-typeset-a-color) 18%, var(--md-default-bg-color)); stroke: var(--md-typeset-a-color); stroke-width: 1; }
.nj-fig .nj-sax-buf { fill: currentColor; font-family: var(--md-code-font-family), monospace; font-size: 14px; white-space: pre; }
.nj-fig .nj-sax-sep { stroke: var(--fg-line); stroke-width: 1; stroke-dasharray: 3 3; }
.nj-fig .nj-sax-status { font-size: 14px; font-weight: 600; }
.nj-fig .nj-sax-s-wait { fill: var(--nj-blue); }
.nj-fig .nj-sax-s-ok { fill: var(--nj-hl-string); }
.nj-fig .nj-sax-s-err { fill: var(--nj-red); }
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