/* /docs, /docs/errors, /docs/changelog — the developer portal.

   Shared by three sibling pages, so it is a plain stylesheet rather than a per-component scoped
   one. Three visual levels: DECISION sections (hero, paths, purchasing) are light and tabular;
   DEMONSTRATION sections (the first request, the lifecycle, the JSON explorer) sit on the dark
   instrument canvas or a code surface; REFERENCE sections (matrix, operations, errors, contract)
   are quiet tables.

   Progressive enhancement throughout. Tabs, steps, lifecycle nodes and the report explorer are
   radios + :has(); without :has() every panel renders under its own caption. Copy buttons, the
   filters and the following nav appear only once docs.js has added html.js. */

/* ------------------------------------------------------------------ primitives */
.dx-radio { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.dx-radio:focus-visible + label { outline: 3px solid var(--focus, #1558d6); outline-offset: 3px; }
/* The site's blue ring sits under 3:1 against the dark surfaces; on them the ring is white with the
   blue as a halo, which clears 1.4.11 on both the dark ground and the light label. */
.dx-panel-dark .dx-radio:focus-visible + label, .dx-band .dx-radio:focus-visible + label {
    outline: 3px solid #fff; outline-offset: 2px; box-shadow: 0 0 0 6px var(--focus, #1558d6);
}
.dx-code:focus-visible, .dx-json:focus-visible { outline: 3px solid var(--signal, #8df0a6); outline-offset: 2px; }

.dx-code {
    margin: 0;
    max-width: 100%;
    min-width: 0;
    padding: .85rem 1rem;
    border-radius: var(--radius-sm);
    background: #0f1f18;
    color: #e6efe9;
    font: .82rem/1.55 var(--font-mono, ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace);
    white-space: pre;
    overflow-x: auto;
    tab-size: 2;
    border: 1px solid #22372d;
}
.dx-code code { font: inherit; color: inherit; background: none; padding: 0; }
.dx-code-tall { max-height: 34rem; overflow: auto; }
.dx-code-wrap { position: relative; }
.dx-code-cap { margin: 0 0 .4rem; font-size: .78rem; color: var(--muted); letter-spacing: .02em; }
.dx-panel-dark .dx-code-cap { color: var(--dark-soft); }
.dx-copy {
    position: absolute; top: .45rem; right: .45rem;
    display: none;
    padding: .25rem .6rem;
    border: 1px solid #3a5446;
    border-radius: 999px;
    background: #16291f;
    color: #cfe6d7;
    font: 600 .72rem/1.2 var(--font-body);
    cursor: pointer;
}
.dx-copy:hover { background: #1f3a2c; color: #fff; }
.dx-copy.is-done { background: var(--signal); color: #07391f; border-color: var(--signal); }
html.js .dx-copy { display: inline-block; }
.dx-code-wrap .dx-copy { top: 1.9rem; }
.dx-code-wrap .dx-code { padding-right: 5.5rem; }
.dx-copy { min-height: 24px; }
.dx-script .dx-copy, .dx-card .dx-copy, .dx-step .dx-copy { position: static; margin-top: .5rem; }

.dx-badge {
    display: inline-block;
    padding: .15rem .55rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--ink-soft);
    font: 600 .72rem/1.3 var(--font-body);
    letter-spacing: .01em;
    white-space: nowrap;
    vertical-align: middle;
}
.dx-badge-safe { background: var(--brand-wash); border-color: #bfe0cc; color: var(--brand-strong); }
.dx-badge-warn { background: #fff4d8; border-color: #f0d28a; color: #8a5800; }
.dx-badge-money { background: #fff0ee; border-color: #f3c2bc; color: #a92a23; }
.dx-badge-added, .dx-badge-fixed { background: var(--brand-wash); border-color: #bfe0cc; color: var(--brand-strong); }
.dx-badge-changed { background: #fff4d8; border-color: #f0d28a; color: #8a5800; }
.dx-panel-dark .dx-badge-safe { background: #163826; border-color: #2f5c43; color: var(--signal); }

.dx-tick { color: var(--brand); font-weight: 700; }
.dx-muted { color: var(--muted); }
.dx-card-k { margin: 0 0 .5rem; font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--brand-strong); }
.dx-card-money .dx-card-k { color: #a92a23; }
.dx-section-lede { max-width: 62ch; color: var(--ink-soft); font-size: 1.02rem; margin: .5rem 0 0; }
.dx-band-link { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; margin: 1.5rem 0 0; }
.dx-list { margin: .5rem 0 0; padding-left: 1.1rem; }
.dx-list li { margin: .35rem 0; }
.dx-two { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); margin-top: 1.75rem; align-items: start; }
.dx-card { padding: 1.25rem 1.35rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow-1); }
.dx-card h3 { margin: 0 0 .5rem; font-size: 1.15rem; }
.dx-card-safe { border-left: 4px solid var(--brand); }
.dx-card-money { border-left: 4px solid #a92a23; }
.dx-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.dx-table th, .dx-table td { padding: .6rem .7rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-soft); }
.dx-table thead th { font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line); }
.dx-table tbody th { font-weight: 500; }
.dx-table tbody th b { display: block; }
.dx-table tbody th span { display: block; font-size: .8rem; color: var(--muted); font-weight: 400; }
.dx-table-wrap { margin-top: 1.5rem; }
.dx-table code { font-size: .82em; }
.dx-code-link { display: inline-flex; align-items: center; gap: .3rem; margin: .15rem .5rem .15rem 0; text-decoration: none; }
.dx-code-link code { text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; }
.dx-code-link:hover code { text-decoration-color: var(--brand); }
.dx-method {
    display: inline-block; min-width: 3.4rem; text-align: center;
    padding: .1rem .35rem; border-radius: 4px;
    font: 700 .68rem/1.4 var(--font-mono, ui-monospace, monospace); letter-spacing: .04em;
    background: var(--wash-deep, #e2ece5); color: var(--ink);
}
.dx-method-get { background: #e3f2e8; color: #0a4f2d; }
.dx-method-post { background: #e8f0ff; color: #1558d6; }
.dx-method-put { background: #fff4d8; color: #8a5800; }
.dx-method-delete { background: #fff0ee; color: #a92a23; }
.dx-empty { margin: 1rem 0 0; color: var(--muted); }
.dx-facts { display: flex; flex-wrap: wrap; gap: .4rem .5rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.dx-facts li { display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .7rem; border: 1px solid var(--line); border-radius: 999px; background: var(--card); font-size: .84rem; color: var(--ink-soft); }
.dx-facts li::before { content: "✓" / ""; color: var(--brand); font-weight: 700; }
.dx-facts code { font-size: .9em; }

/* ------------------------------------------------------------------ hero */
.dx-hero { padding-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.dx-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.75rem, 4vw, 3.5rem); align-items: start; }
/* Out-specifies site.css's .hero h1 (0,1,1), which would otherwise size these at homepage-hero scale. */
.dx-hero h1.dx-h1 { margin: .35rem 0 .6rem; font-size: clamp(1.95rem, 4.2vw, 2.9rem); font-weight: 600; max-width: none; letter-spacing: -.02em; text-wrap: balance; }
.dx-lede { margin: 0; max-width: 56ch; font-size: 1.05rem; color: var(--ink-soft); }
.dx-lede code { font-size: .9em; }
.dx-hero-hint { margin-top: 1rem; }
.dx-hero-sub .dx-code { margin-top: 1.25rem; max-width: 40rem; }
.dx-hero-sub .eyebrow a { color: inherit; text-decoration: none; }
.dx-hero-sub .eyebrow a:hover { text-decoration: underline; }

.dx-panel-dark {
    padding: 1.15rem 1.25rem 1.25rem;
    border-radius: var(--radius);
    background: var(--dark-bg, #0b1812);
    color: var(--dark-ink, #eef6f0);
    border: 1px solid var(--dark-line, #294033);
    box-shadow: var(--shadow-2);
}
.dx-first-top { display: flex; justify-content: space-between; align-items: center; gap: .75rem; flex-wrap: wrap; margin-bottom: .75rem; }
.dx-first-h { margin: 0; font-size: 1rem; color: var(--dark-ink); }
.dx-first-resp { margin: 1rem 0 .4rem; font-size: .8rem; color: var(--dark-soft); }
.dx-first-resp span { display: inline-block; margin-right: .5rem; padding: .05rem .45rem; border-radius: 4px; background: #163826; color: var(--signal); font-weight: 700; font-size: .72rem; }
.dx-code-resp { background: #0b1812; border-color: #22372d; color: #cfe6d7; }

/* ------------------------------------------------------------------ tabs (radios + :has) */
.dx-tabs { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem; margin: 0 0 .75rem; }
.dx-tabs label {
    padding: .35rem .8rem; border-radius: 999px; border: 1px solid var(--line);
    background: var(--card); color: var(--ink-soft); font: 600 .82rem/1.3 var(--font-body); cursor: pointer;
}
.dx-tabs label:hover { border-color: var(--brand); color: var(--ink); }
.dx-tabs .dx-radio:checked + label { background: var(--brand); border-color: var(--brand); color: #fff; }
.dx-panel-dark .dx-tabs label { background: #10221a; border-color: #2f4a3b; color: var(--dark-soft); }
.dx-panel-dark .dx-tabs .dx-radio:checked + label { background: var(--signal); border-color: var(--signal); color: #07391f; }
.dx-tabs-links { margin-left: auto; display: flex; gap: .35rem .9rem; flex-wrap: wrap; font-size: .84rem; }
.dx-tabs-wide { padding-bottom: .75rem; border-bottom: 1px solid var(--line); margin-bottom: 1.25rem; }

/* Every language panel shows without :has(); with it, only the chosen one. */
@supports selector(:has(*)) {
    .dx-first:has(.dx-radio) .dx-code-wrap, .dx-clients:has(.dx-radio) .dx-code-wrap, .dx-view[data-view="types"]:has(.dx-radio) .dx-code-wrap { display: none; }
    .dx-first:has(#dx-l-curl:checked) .dx-code-wrap[data-lang="curl"],
    .dx-first:has(#dx-l-ts:checked) .dx-code-wrap[data-lang="ts"],
    .dx-first:has(#dx-l-cs:checked) .dx-code-wrap[data-lang="cs"],
    .dx-first:has(#dx-l-py:checked) .dx-code-wrap[data-lang="py"],
    .dx-clients:has(#dx-c-ts:checked) .dx-code-wrap[data-lang="ts"],
    .dx-clients:has(#dx-c-cs:checked) .dx-code-wrap[data-lang="cs"],
    .dx-clients:has(#dx-c-py:checked) .dx-code-wrap[data-lang="py"],
    .dx-view[data-view="types"]:has(#dx-t-ts:checked) .dx-code-wrap[data-lang="ts"],
    .dx-view[data-view="types"]:has(#dx-t-cs:checked) .dx-code-wrap[data-lang="cs"],
    .dx-view[data-view="types"]:has(#dx-t-py:checked) .dx-code-wrap[data-lang="py"] { display: block; }
    .dx-first:has(.dx-radio) .dx-code-cap, .dx-clients:has(.dx-radio) .dx-code-cap, .dx-view[data-view="types"]:has(.dx-radio) .dx-code-cap { display: none; }
    /* With the caption gone the button no longer has a caption to clear. */
    .dx-first .dx-code-wrap .dx-copy, .dx-clients .dx-code-wrap .dx-copy, .dx-view[data-view="types"] .dx-code-wrap .dx-copy { top: .45rem; }

    .dx-quick:has(.dx-radio) .dx-step { display: none; }
    .dx-quick:has(#dx-q-1:checked) .dx-step[data-step="1"], .dx-quick:has(#dx-q-2:checked) .dx-step[data-step="2"],
    .dx-quick:has(#dx-q-3:checked) .dx-step[data-step="3"], .dx-quick:has(#dx-q-4:checked) .dx-step[data-step="4"],
    .dx-quick:has(#dx-q-5:checked) .dx-step[data-step="5"] { display: block; }

    .dx-life:has(.dx-radio) .dx-life-card { display: none; }
    .dx-life:has(#dx-n-unlocked:checked) .dx-life-card[data-node="unlocked"], .dx-life:has(#dx-n-first:checked) .dx-life-card[data-node="first"],
    .dx-life:has(#dx-n-running:checked) .dx-life-card[data-node="running"], .dx-life:has(#dx-n-succeeded:checked) .dx-life-card[data-node="succeeded"],
    .dx-life:has(#dx-n-failed:checked) .dx-life-card[data-node="failed"], .dx-life:has(#dx-n-finder:checked) .dx-life-card[data-node="finder"],
    .dx-life:has(#dx-n-rerun:checked) .dx-life-card[data-node="rerun"], .dx-life:has(#dx-n-end:checked) .dx-life-card[data-node="end"] { display: block; }

    .dx-explorer:has(.dx-radio[name="dx-view"]) .dx-view { display: none; }
    .dx-explorer:has(#dx-v-map:checked) .dx-view[data-view="map"], .dx-explorer:has(#dx-v-schema:checked) .dx-view[data-view="schema"],
    .dx-explorer:has(#dx-v-types:checked) .dx-view[data-view="types"] { display: block; }

    .dx-explorer:has(#dx-map-identity:checked) .dx-jl[data-map~="identity"], .dx-explorer:has(#dx-map-verdict:checked) .dx-jl[data-map~="verdict"],
    .dx-explorer:has(#dx-map-metrics:checked) .dx-jl[data-map~="metrics"], .dx-explorer:has(#dx-map-silent:checked) .dx-jl[data-map~="silent"],
    .dx-explorer:has(#dx-map-adjudications:checked) .dx-jl[data-map~="adjudications"], .dx-explorer:has(#dx-map-finding:checked) .dx-jl[data-map~="finding"],
    .dx-explorer:has(#dx-map-locked:checked) .dx-jl[data-map~="locked"], .dx-explorer:has(#dx-map-plan:checked) .dx-jl[data-map~="plan"],
    .dx-explorer:has(#dx-map-joins:checked) .dx-jl[data-map~="joins"] { background: #1f3f2d; box-shadow: inset 3px 0 0 var(--signal); color: #fff; }
    .dx-explorer:has(#dx-map-identity:checked) .dx-jl[data-map~="identity"] i, .dx-explorer:has(#dx-map-verdict:checked) .dx-jl[data-map~="verdict"] i,
    .dx-explorer:has(#dx-map-metrics:checked) .dx-jl[data-map~="metrics"] i, .dx-explorer:has(#dx-map-silent:checked) .dx-jl[data-map~="silent"] i,
    .dx-explorer:has(#dx-map-adjudications:checked) .dx-jl[data-map~="adjudications"] i, .dx-explorer:has(#dx-map-finding:checked) .dx-jl[data-map~="finding"] i,
    .dx-explorer:has(#dx-map-locked:checked) .dx-jl[data-map~="locked"] i, .dx-explorer:has(#dx-map-plan:checked) .dx-jl[data-map~="plan"] i,
    .dx-explorer:has(#dx-map-joins:checked) .dx-jl[data-map~="joins"] i { color: #fff; }
}

/* Without :has() the tab strips and step list would be live-looking controls that change nothing;
   every panel is already visible under its caption, so the pickers go. */
@supports not selector(:has(*)) {
    .dx-tabs, .dx-quick-steps { display: none; }
}

/* ------------------------------------------------------------------ local nav */
.dx-nav { background: var(--card); border-block: 1px solid var(--line-soft); }
.dx-nav-row { display: flex; gap: .15rem 1.1rem; align-items: center; overflow-x: auto; padding-block: .55rem; scrollbar-width: thin; }
.dx-nav-row a { flex: 0 0 auto; padding: .3rem 0; font-size: .88rem; color: var(--ink-soft); text-decoration: none; border-bottom: 2px solid transparent; }
.dx-nav-row a:hover { color: var(--ink); }
.dx-nav-row a.is-active, .dx-nav-row a[aria-current="location"] { color: var(--brand-strong); border-bottom-color: var(--brand); }
.dx-nav-cta { margin-left: auto; padding: .35rem .85rem !important; border-radius: 999px; background: var(--brand); color: #fff !important; font-weight: 600; border-bottom: 0 !important; }
.dx-nav-cta:hover { background: var(--brand-strong); }
@media (min-width: 56rem) {
    .dx-nav { position: sticky; top: var(--header-h, 58px); z-index: 40; }
}
@media (max-width: 56rem) {
    /* On phones the row wraps rather than scrolls, and the one action comes first, in full view. */
    .dx-nav-row { flex-wrap: wrap; overflow: visible; gap: .1rem 1rem; }
    .dx-nav-cta { margin-left: 0; order: -1; flex-basis: 100%; text-align: center; }
}

/* ------------------------------------------------------------------ paths */
.dx-paths { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
.dx-path { padding: 1.35rem 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow-1); display: flex; flex-direction: column; }
.dx-path-k { margin: 0 0 .5rem; font-size: .76rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand-strong); }
.dx-path h3 { margin: 0 0 .5rem; font-size: 1.2rem; }
.dx-path p { margin: 0 0 .75rem; color: var(--ink-soft); }
.dx-path-ops { margin: 0 0 1rem; padding-left: 1.2rem; font-size: .86rem; }
.dx-path-ops li { margin: .2rem 0; }
.dx-path-ops small { color: var(--muted); }
.dx-path > a { margin-top: auto; font-weight: 600; }

/* ------------------------------------------------------------------ quickstart */
.dx-quick { display: grid; grid-template-columns: minmax(0, 17rem) minmax(0, 1fr); gap: 1.5rem; align-items: start; }
.dx-quick-steps { display: grid; gap: .4rem; }
.dx-quick-steps label {
    display: grid; grid-template-columns: 2rem 1fr; grid-template-rows: auto auto; column-gap: .6rem; align-items: center;
    padding: .65rem .8rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); cursor: pointer;
}
.dx-quick-steps label b { grid-row: 1 / 3; width: 2rem; height: 2rem; border-radius: 50%; display: grid; place-items: center; background: var(--wash); color: var(--ink); font-size: .9rem; }
.dx-quick-steps label span { font-weight: 600; font-size: .92rem; }
.dx-quick-steps label small { color: var(--muted); font-size: .76rem; }
.dx-quick-steps label:hover { border-color: var(--brand); }
.dx-quick-steps .dx-radio:checked + label { border-color: var(--brand); background: var(--brand-wash); }
.dx-quick-steps .dx-radio:checked + label b { background: var(--brand); color: #fff; }
.dx-step { padding: 1.35rem 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow-1); }
.dx-step + .dx-step { margin-top: 1rem; }
.dx-step-k { margin: 0 0 .35rem; font-size: .78rem; color: var(--muted); }
.dx-step h3 { margin: 0 0 .6rem; font-size: 1.25rem; }
.dx-step p { margin: .75rem 0 0; }
.dx-step .dx-code { margin-top: .75rem; }
.dx-step-facts { margin: 1rem 0 0; display: grid; gap: .5rem; }
.dx-step-facts div { display: grid; grid-template-columns: 8.5rem 1fr; gap: .5rem; font-size: .9rem; }
.dx-step-facts dt { font-weight: 700; color: var(--ink); }
.dx-step-facts dd { margin: 0; color: var(--ink-soft); }
.dx-script { margin-top: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); padding: 0 1.25rem 1rem; }
.dx-script summary { display: flex; gap: .75rem; align-items: baseline; padding: .9rem 0; cursor: pointer; font-weight: 600; }
.dx-script summary small { color: var(--muted); font-weight: 400; }
.dx-script .dx-code { margin-top: .25rem; }

/* ------------------------------------------------------------------ architecture */
.dx-arch { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.dx-arch-copy h2 { margin: .35rem 0 .6rem; }
.dx-arch-copy p { max-width: 54ch; }
.dx-arch-diagram { display: grid; gap: .25rem; }
.dx-arch-node { padding: .9rem 1rem; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow-1); }
.dx-arch-node b { display: block; }
.dx-arch-node span { display: block; font-size: .82rem; color: var(--muted); }
.dx-arch-browser { border-style: dashed; }
.dx-arch-backend { border-left: 4px solid var(--brand); }
.dx-arch-api { background: var(--dark-bg, #0b1812); color: var(--dark-ink); border-color: var(--dark-line); }
.dx-arch-api span { color: var(--dark-soft); }
.dx-arch-link { display: flex; align-items: center; gap: .5rem; padding-left: 1.25rem; font-size: .76rem; color: var(--muted); }
.dx-arch-link::before { content: ""; width: 2px; height: 1.4rem; background: var(--line); }
.dx-arch-link span { font-family: var(--font-mono, ui-monospace, monospace); }

/* ------------------------------------------------------------------ lifecycle (dark band) */
.dx-band { color: var(--dark-ink); }
.dx-band code, .dx-panel-dark code:not(.dx-code code) { background: rgba(255, 255, 255, .08); color: #d9f5e2; border: 1px solid rgba(255, 255, 255, .1); }
.dx-band .dx-node code { background: none; border: 0; padding: 0; color: inherit; }
.dx-band .eyebrow { color: var(--signal); }
.dx-band-h { color: var(--dark-ink); }
.dx-band-lede { max-width: 62ch; color: var(--dark-soft); font-size: 1.02rem; margin: .5rem 0 0; }
.dx-band-h3 { color: var(--dark-ink); margin: 0 0 1rem; font-size: 1.3rem; }
.dx-life { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 1.5rem; align-items: start; }
.dx-life-map { display: grid; grid-template-columns: 1fr; gap: .4rem; }
.dx-node {
    display: block; padding: .7rem .9rem; border-radius: var(--radius-sm);
    border: 1px solid var(--dark-line); background: var(--dark-bg-2, #102219); color: var(--dark-ink); cursor: pointer;
}
.dx-node small { display: block; font-size: .72rem; color: var(--dark-soft); letter-spacing: .04em; text-transform: uppercase; }
.dx-node b { display: block; font-size: 1rem; }
.dx-node span { display: block; font-size: .82rem; color: var(--dark-soft); }
.dx-node:hover { border-color: var(--signal); }
.dx-life-map .dx-radio:checked + .dx-node { border-color: var(--signal); box-shadow: inset 4px 0 0 var(--signal); background: #163826; }
.dx-node-optional { border-style: dashed; }
.dx-node-ok { border-left: 4px solid var(--signal); }
.dx-node-fail { border-left: 4px solid #ffb1aa; }
.dx-node-end { opacity: .85; }
.dx-life-arrow { height: 1.1rem; margin-left: 1.4rem; border-left: 2px solid #3f5c4c; position: relative; }
.dx-life-arrow::after { content: ""; position: absolute; left: -5px; bottom: -1px; border: 4px solid transparent; border-top: 6px solid #3f5c4c; }
.dx-life-fork { height: .9rem; margin-left: 1.4rem; border-left: 2px dashed #3f5c4c; }
.dx-life-outcomes { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem; }
.dx-life-branch { height: .9rem; margin-left: 1.4rem; border-left: 2px dotted #3f5c4c; }
.dx-life-card { padding: 1.25rem 1.35rem; border-radius: var(--radius); background: #0f1f18; border: 1px solid var(--dark-line); }
.dx-life-card + .dx-life-card { margin-top: 1rem; }
.dx-life-tag { margin: 0 0 .35rem; font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--signal); }
.dx-life-card h3 { margin: 0 0 .6rem; color: var(--dark-ink); font-size: 1.2rem; }
.dx-life-card p { margin: 0 0 .75rem; color: var(--dark-soft); }
.dx-life-card code { color: #d9f5e2; }
.dx-life-card dl { margin: 0 0 .75rem; display: grid; gap: .35rem; }
.dx-life-card dl div { display: grid; grid-template-columns: 7rem 1fr; gap: .5rem; font-size: .86rem; }
.dx-life-card dt { color: var(--dark-ink); font-weight: 700; }
.dx-life-card dd { margin: 0; color: var(--dark-soft); }
.dx-life-card a { color: var(--signal); }

.dx-seq-wrap { margin-top: clamp(2rem, 5vw, 3rem); padding-top: 1.5rem; border-top: 1px solid var(--dark-line); }
.dx-seq { list-style: none; margin: 0; padding: 0; max-width: 46rem; display: grid; gap: .35rem; position: relative; }
.dx-seq::before { content: ""; position: absolute; left: 50%; top: 2rem; bottom: 2.5rem; border-left: 1px dashed #3f5c4c; }
.dx-seq-head { display: flex; justify-content: space-between; font-size: .76rem; letter-spacing: .06em; text-transform: uppercase; color: var(--dark-soft); padding-bottom: .5rem; }
.dx-seq-row { display: flex; position: relative; }
.dx-seq-row.is-right { justify-content: flex-start; }
.dx-seq-row.is-left { justify-content: flex-end; }
.dx-seq-msg { display: inline-block; max-width: 48%; padding: .45rem .7rem; border-radius: var(--radius-sm); background: #102219; border: 1px solid var(--dark-line); font-size: .84rem; color: var(--dark-ink); position: relative; }
.dx-seq-row.is-right .dx-seq-msg::after { content: "→"; position: absolute; right: -1.4rem; top: .45rem; color: var(--signal); }
.dx-seq-row.is-left .dx-seq-msg::before { content: "←"; position: absolute; left: -1.4rem; top: .45rem; color: var(--signal); }
.dx-seq-msg b { color: var(--signal); margin-right: .3rem; }
.dx-seq-msg em { color: var(--dark-soft); font-style: normal; margin-left: .3rem; }
.dx-seq-wait { text-align: center; font-size: .76rem; color: var(--dark-soft); padding: .2rem 0; }
.dx-seq-wait span { background: var(--dark-bg, #0b1812); padding: 0 .5rem; position: relative; }
.dx-seq-alt { margin-top: .5rem; padding: .6rem .8rem; border-radius: var(--radius-sm); background: #1b2a22; border-left: 3px solid #ffb1aa; font-size: .84rem; color: var(--dark-soft); position: relative; }
.dx-seq-alt b { color: var(--dark-ink); }

/* ------------------------------------------------------------------ purchasing */
.dx-tree { margin-top: 1.5rem; padding: 1.25rem 1.35rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.dx-tree-q { display: inline-block; padding: .4rem .8rem; border-radius: 999px; background: var(--ink); color: #fff; font-weight: 600; font-size: .9rem; }
.dx-tree-branches { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); margin: .75rem 0 0 .75rem; padding-left: 1rem; border-left: 2px solid var(--line); }
.dx-tree-ans { margin: 0 0 .4rem; font-size: .8rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.dx-tree-leaf { padding: .7rem .85rem; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--wash); font-size: .88rem; }
.dx-tree-leaf code { font-weight: 700; }
.dx-tree-leaf em { font-style: normal; color: var(--muted); margin-left: .25rem; }
.dx-tree-leaf span { display: block; margin-top: .25rem; color: var(--ink-soft); }
.dx-tree-leaf-ok { border-left: 4px solid var(--brand); }
.dx-tree-leaf-safe { border-left: 4px solid var(--brand); background: var(--brand-wash); }
.dx-tree-leaf-money { border-left: 4px solid #a92a23; background: #fff0ee; }
.dx-tree-then { margin: .4rem 0; font-size: .78rem; color: var(--muted); padding-left: .5rem; }
.dx-tree-note { margin: 1rem 0 0; font-size: .88rem; color: var(--ink-soft); }

/* ------------------------------------------------------------------ report explorer */
.dx-explorer { margin-top: 1.5rem; }
.dx-view { }
.dx-map { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 1.25rem; align-items: start; }
.dx-report { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-2); overflow: hidden; }
.dx-report-head { display: flex; justify-content: space-between; align-items: center; gap: .5rem; padding: .7rem 1rem; background: var(--brand-deep, #07391f); color: #fff; }
.dx-report-brand { font-weight: 700; }
.dx-report-brand b { color: var(--signal); }
.dx-report-meta { font-size: .76rem; opacity: .85; }
.dx-report-sec { display: block; padding: .8rem 1rem; border-top: 1px solid var(--line-soft); cursor: pointer; }
.dx-report-sec:hover { background: var(--wash); }
.dx-report .dx-radio:checked + .dx-report-sec { background: var(--brand-wash); box-shadow: inset 4px 0 0 var(--brand); }
.dx-report-label { display: block; font-weight: 700; font-size: .92rem; }
.dx-report-blurb { display: block; font-size: .78rem; color: var(--muted); margin-bottom: .35rem; }
.dx-report-body { display: block; font-size: .84rem; color: var(--ink); }
.dx-report-verdict { font-style: italic; }
.dx-report-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; }
.dx-report-metrics > span { display: grid; padding: .35rem .45rem; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.dx-report-metrics small { font-size: .76rem; color: var(--muted); }
.dx-report-metrics b { font-size: .95rem; font-variant-numeric: tabular-nums; }
.dx-report-silent { padding: .45rem .6rem; border-left: 3px solid #a92a23; background: #fff0ee; }
.dx-report-rows { display: grid; gap: .2rem; }
.dx-report-rows i, .dx-verdicts i { display: inline-block; min-width: 3.6rem; text-align: center; margin-right: .4rem; padding: .05rem .4rem; border-radius: 4px; font-style: normal; font-size: .7rem; font-weight: 700; }
.is-real { background: #e3f2e8; color: #0a4f2d; }
.is-wrong { background: #fff0ee; color: #a92a23; }
.is-trivial { background: #eef1ef; color: #4a5a50; }
.is-locked { background: #e8f0ff; color: #1558d6; }
.dx-report-more { color: var(--muted); font-size: .76rem; }
.dx-report-finding b, .dx-report-locked b { display: block; margin-bottom: .15rem; }
.dx-report-plan { display: grid; gap: .2rem; }
.dx-report-plan b { color: var(--brand-strong); margin-right: .3rem; }
.dx-json { max-height: 42rem; overflow: auto; }
.dx-jl { display: block; margin: 0 -1rem; padding: 0 .5rem 0 calc(1rem - 3px); border-left: 3px solid transparent; color: #c9d8cf; transition: background .15s ease; }
.dx-jl i { font-style: normal; }
.dx-jl .k { color: #b5e8c8; }
.dx-jl .s { color: #f6e7ad; }
.dx-jl .n { color: #c7dbff; }
.dx-jl .b { color: #e2bfff; }
.dx-json-wrap .dx-copy { top: 1.9rem; }
.dx-verdicts { margin-top: 1.25rem; padding: 1rem 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.dx-verdicts ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); font-size: .88rem; }
.dx-verdicts code { margin-right: .3rem; }
.dx-schema-group { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); margin-top: .6rem; padding: 0 1rem; }
.dx-schema-group summary { padding: .7rem 0; cursor: pointer; font-weight: 600; }
.dx-schema-group summary small { color: var(--muted); font-weight: 400; margin-left: .5rem; }
.dx-table-schema { font-size: .84rem; margin-bottom: .75rem; }
.dx-table-schema td:nth-child(2) { white-space: nowrap; }
.dx-domain { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); margin-top: 2rem; align-items: start; }
.dx-tree-text { margin: 0; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); font: .8rem/1.5 var(--font-mono, ui-monospace, monospace); white-space: pre; overflow-x: auto; }

/* ------------------------------------------------------------------ matrix, funnel, errors, operations */
.dx-matrix td { text-align: center; }
/* The screen-reader-only "yes"/"no" beside each mark is absolutely positioned; a positioned cell
   keeps it inside the scroll container instead of letting it widen the page. */
.dx-matrix td, .dx-matrix th { position: relative; }
.dx-matrix thead th { white-space: nowrap; }
.dx-matrix thead th code { text-transform: none; letter-spacing: 0; }
.dx-matrix th[scope="row"] { min-width: 14rem; }
.dx-matrix th[scope="row"] span { font-size: .78rem; }
.dx-funnel { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: .5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr)); counter-reset: none; }
.dx-funnel li { position: relative; padding: .9rem 1rem .9rem 3rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); font-size: .86rem; }
.dx-funnel-n { position: absolute; left: .85rem; top: .9rem; width: 1.6rem; height: 1.6rem; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: #fff; font-size: .78rem; font-weight: 700; }
.dx-funnel b { display: block; margin-bottom: .2rem; }
.dx-funnel span:not(.dx-funnel-n) { color: var(--ink-soft); }
.dx-two-errors { grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); }
.dx-table-errors th[scope="row"] { white-space: nowrap; }
.dx-filter-row { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; align-items: center; margin: 0 0 1rem; }
.dx-filter { display: none; align-items: center; gap: .5rem; flex: 1 1 18rem; max-width: 28rem; }
html.js .dx-filter { display: flex; }
.dx-filter span { font-size: .8rem; font-weight: 700; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }
.dx-filter input { flex: 1; min-width: 0; }
.dx-filter-count { margin: 0; font-size: .86rem; color: var(--muted); }
.dx-ops-group { margin-top: 1.25rem; }
.dx-ops-h { margin: 0 0 .4rem; font-size: 1.05rem; }
.dx-ops-h a { color: inherit; text-decoration: none; }
.dx-ops-h a:hover { text-decoration: underline; }
.dx-ops { table-layout: fixed; }
.dx-ops th:nth-child(1) { width: 38%; }
.dx-ops th:nth-child(3) { width: 12rem; }
.dx-ops th:nth-child(4) { width: 6.5rem; }
.dx-ops th:nth-child(5) { width: 11rem; }
.dx-ops td:first-child { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dx-ops td:nth-child(4) { white-space: nowrap; }
@media (max-width: 64rem) { .dx-ops { table-layout: auto; min-width: 48rem; } }
.dx-op { text-decoration: none; color: inherit; }
.dx-op code { text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; }
.dx-op:hover code { text-decoration-color: var(--brand); }
.dx-clients { margin-top: 1.5rem; }
.dx-res { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
.dx-res-group { padding: 1.25rem 1.35rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.dx-res-group h3 { margin: 0 0 .35rem; font-size: 1.1rem; }
.dx-res-group > p { margin: 0 0 .75rem; color: var(--ink-soft); font-size: .9rem; }
.dx-res-group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.dx-res-group li a { font-weight: 600; }
.dx-res-group li span { display: block; font-size: .82rem; color: var(--muted); }

/* ------------------------------------------------------------------ contract, status, changelog */
.dx-contract { display: grid; gap: 1.5rem; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); align-items: start; }
.dx-kv { margin: 0; display: grid; gap: .5rem; }
.dx-kv div { display: grid; grid-template-columns: 11rem 1fr; gap: .75rem; padding: .5rem 0; border-bottom: 1px solid var(--line-soft); font-size: .92rem; }
.dx-kv dt { font-weight: 700; }
.dx-kv dd { margin: 0; }
.dx-kv-inline { margin-top: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }
.dx-kv-inline div { grid-template-columns: 1fr; gap: .15rem; border: 0; padding: 0; }
.dx-kv-inline dt { font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.dx-status { padding: 1.25rem 1.35rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.dx-status-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.dx-status-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .6rem .8rem; border-radius: var(--radius-sm); border: 1px solid var(--line); }
.dx-status-list li span { font-weight: 700; }
.dx-status-list li.is-ok span { color: var(--brand-strong); }
.dx-status-list li.is-ok { border-left: 4px solid var(--brand); }
.dx-status-list li.is-warn span { color: #8a5800; }
.dx-status-list li.is-warn { border-left: 4px solid #e0a11b; }
.dx-changes { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: .4rem; }
.dx-changes li { display: grid; grid-template-columns: 7.5rem auto 1fr; gap: .75rem; align-items: center; padding: .55rem .8rem; border: 1px solid var(--line-soft); border-radius: var(--radius-sm); background: var(--card); font-size: .9rem; }
.dx-changes time { color: var(--muted); font-variant-numeric: tabular-nums; }
.dx-log { list-style: none; margin: 0; padding: 0; display: grid; gap: 2rem; }
.dx-log-day h3 { margin: 0 0 .75rem; font-size: 1.05rem; color: var(--muted); font-weight: 600; }
.dx-log-entries { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.dx-log-entry { padding: 1.1rem 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.dx-log-title { margin: 0 0 .5rem; font-size: 1.05rem; display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.dx-log-entry p { margin: .4rem 0 0; }
.dx-log-entry dl { margin: .75rem 0 0; display: grid; gap: .4rem; }
.dx-log-entry dl div { display: grid; grid-template-columns: 9rem 1fr; gap: .6rem; font-size: .88rem; }
.dx-log-entry dt { font-weight: 700; }
.dx-log-entry dd { margin: 0; color: var(--ink-soft); }
.dx-policy { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }

/* ------------------------------------------------------------------ error catalog page */
.dx-err-group { margin-top: 2rem; scroll-margin-top: calc(var(--header-h, 58px) + 4rem); }
.dx-err-h { margin: 0 0 .75rem; font-size: 1.1rem; display: flex; gap: .6rem; align-items: baseline; }
.dx-err-h b { font-size: 1.4rem; font-variant-numeric: tabular-nums; color: var(--brand-strong); }
.dx-err-rows { display: grid; gap: .6rem; }
.dx-err { position: relative; padding: 1rem 2.5rem 1rem 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); scroll-margin-top: calc(var(--header-h, 58px) + 4rem); }
.dx-err:target, .dx-err.is-target { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-wash); }
.dx-err-code { margin: 0 0 .5rem; display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.dx-err-code code { font-size: 1rem; font-weight: 700; }
.dx-err-status { font-size: .76rem; color: var(--muted); font-weight: 600; letter-spacing: .04em; }
.dx-err dl { margin: 0; display: grid; gap: .35rem; }
.dx-err dl div { display: grid; grid-template-columns: 7.5rem 1fr; gap: .6rem; font-size: .9rem; }
.dx-err dt { font-weight: 700; color: var(--ink); }
.dx-err dd { margin: 0; color: var(--ink-soft); }
.dx-err-anchor { position: absolute; top: .9rem; right: .9rem; color: var(--muted); text-decoration: none; font-weight: 700; }
.dx-err-anchor:hover { color: var(--brand); }

/* ------------------------------------------------------------------ closing */
.dx-cta .actions { justify-content: center; }
.dx-cta p { max-width: 56ch; margin-left: auto; margin-right: auto; }

/* ------------------------------------------------------------------ reveals */
html.js .dx-reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease; }
html.js .dx-reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html.js .dx-reveal { opacity: 1; transform: none; transition: none; } }

/* Grid children default to min-width:auto, so one long code line would widen its track past the
   viewport. Every grid child here may shrink; the code inside scrolls instead. */
.dx-hero-grid > *, .dx-two > *, .dx-map > *, .dx-life > *, .dx-quick > *, .dx-arch > *, .dx-contract > *,
.dx-paths > *, .dx-res > *, .dx-policy > *, .dx-domain > *, .dx-quick-panels > *, .dx-life-detail > *,
.dx-err-rows > *, .dx-log-entries > *, .dx-view, .dx-explorer, .dx-clients, .dx-code-wrap, .dx-json-wrap { min-width: 0; }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 64rem) {
    .dx-hero-grid, .dx-arch, .dx-life, .dx-map, .dx-contract, .dx-two-errors { grid-template-columns: minmax(0, 1fr); }
    .dx-quick { grid-template-columns: minmax(0, 1fr); }
    .dx-quick-steps { grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr)); }
}
@media (max-width: 40rem) {
    .dx-life-outcomes { grid-template-columns: 1fr; }
    .dx-step-facts div, .dx-life-card dl div, .dx-kv div, .dx-err dl div, .dx-log-entry dl div { grid-template-columns: 1fr; gap: .15rem; }
    .dx-changes li { grid-template-columns: 1fr; gap: .25rem; }
    .dx-report-metrics { grid-template-columns: 1fr 1fr; }
    .dx-seq::before { display: none; }
    .dx-seq-msg { max-width: 86%; }
    .dx-tabs-links { margin-left: 0; flex-basis: 100%; }
    .dx-tree-branches { margin-left: 0; padding-left: .6rem; }
}

/* ------------------------------------------------------------------ print */
@media print {
    .dx-nav, .dx-copy, .dx-filter-row, .dx-tabs, .dx-quick-steps { display: none !important; }
    .dx-code, .dx-json { white-space: pre-wrap; max-height: none; }
    .dx-step, .dx-life-card, .dx-code-wrap, .dx-view, .dx-code-cap { display: block !important; }
    /* Dark surfaces print as ink on paper. */
    .dx-code, .dx-json, .dx-panel-dark, .dx-band, .section-dark, .dx-life-card, .dx-node, .dx-arch-api, .dx-seq-msg, .dx-seq-alt, .dx-code-resp, .dx-report-head {
        background: #fff !important; color: #000 !important; border-color: #999 !important; box-shadow: none !important;
    }
    .dx-band *, .dx-panel-dark *, .dx-code *, .dx-json *, .dx-life-card *, .dx-node *, .dx-seq-msg *, .dx-seq-alt *, .dx-report-head * { color: #000 !important; background: transparent !important; }
    .dx-band a, .dx-life-card a { text-decoration: underline; }
    .dx-jl { box-shadow: none !important; }
}