/* ==========================================================================
   Codex - a documentation theme for Publii
   --------------------------------------------------------------------------
   Every colour, width and accent below can be changed from the Publii UI under
   Theme settings. Option values arrive here as custom properties through a
   <style> block printed in partials/head.hbs.
   ========================================================================== */

/* --- 1. Tokens ----------------------------------------------------------- */

:root {
    /* Widths (overridable from Theme settings -> Layout) */
    --cdx-nav-w: 17rem;
    --cdx-content-w: 46rem;
    --cdx-toc-w: 15rem;
    --cdx-header-h: 3.5rem;
    --cdx-gap: 2.5rem;

    /* Palette - light */
    --cdx-bg: #ffffff;
    --cdx-bg-soft: #f7f8fa;
    --cdx-bg-sunken: #eef0f4;
    --cdx-border: #e2e5ea;
    --cdx-border-soft: #edeff2;
    --cdx-text: #24292f;
    --cdx-text-soft: #5b636d;
    --cdx-heading: #16181d;
    --cdx-accent: #3b6fd4;
    --cdx-accent-contrast: #ffffff;
    --cdx-accent-soft: rgba(59, 111, 212, .09);
    --cdx-code-bg: #f4f5f7;
    --cdx-mark: #fff3bf;
    --cdx-shadow: 0 1px 2px rgba(22, 24, 29, .05), 0 4px 14px rgba(22, 24, 29, .04);

    /* Type */
    --cdx-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue",
                Arial, "Noto Sans SC", sans-serif;
    --cdx-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
                     "Liberation Mono", "Courier New", monospace;

    --cdx-radius: .5rem;
    --cdx-radius-sm: .375rem;

    color-scheme: light;
}

/* Palette - dark. Applied when the visitor flips the toggle, or automatically
   when "Follow the operating system" is selected. */
html[data-theme="dark"] {
    --cdx-bg: #12141a;
    --cdx-bg-soft: #171a21;
    --cdx-bg-sunken: #1d212a;
    --cdx-border: #2a2f3a;
    --cdx-border-soft: #22262f;
    --cdx-text: #d5dae2;
    --cdx-text-soft: #9aa3b0;
    --cdx-heading: #f0f3f7;
    --cdx-accent: #7ba2f0;
    --cdx-accent-contrast: #10131a;
    --cdx-accent-soft: rgba(123, 162, 240, .14);
    --cdx-code-bg: #16181d;
    --cdx-mark: #4d4320;
    --cdx-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .22);

    color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
    html[data-theme-choice="auto"] {
        --cdx-bg: #12141a;
        --cdx-bg-soft: #171a21;
        --cdx-bg-sunken: #1d212a;
        --cdx-border: #2a2f3a;
        --cdx-border-soft: #22262f;
        --cdx-text: #d5dae2;
        --cdx-text-soft: #9aa3b0;
        --cdx-heading: #f0f3f7;
        --cdx-accent: #7ba2f0;
        --cdx-accent-contrast: #10131a;
        --cdx-accent-soft: rgba(123, 162, 240, .14);
        --cdx-code-bg: #16181d;
        --cdx-mark: #4d4320;
        --cdx-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .22);

        color-scheme: dark;
    }
}

/* --- 2. Reset ------------------------------------------------------------ */

*, *::before, *::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--cdx-header-h) + 1rem);
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
    margin: 0;
    background: var(--cdx-bg);
    color: var(--cdx-text);
    font-family: var(--cdx-font);
    font-size: 1rem;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

img, svg, video { max-width: 100%; height: auto; }
img { border-radius: var(--cdx-radius-sm); }

a { color: var(--cdx-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

:focus-visible {
    outline: 2px solid var(--cdx-accent);
    outline-offset: 2px;
    border-radius: var(--cdx-radius-sm);
}

.cdx-u-sr {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.cdx-skip {
    position: absolute; top: .5rem; left: .5rem; z-index: 100;
    padding: .5rem .875rem;
    background: var(--cdx-accent); color: var(--cdx-accent-contrast);
    border-radius: var(--cdx-radius-sm);
    transform: translateY(-200%);
    transition: transform .15s ease;
}
.cdx-skip:focus { transform: none; text-decoration: none; }

.cdx-icon {
    width: 1rem; height: 1rem;
    fill: none; stroke: currentColor; stroke-width: 1.8;
    stroke-linecap: round; stroke-linejoin: round;
    flex: none;
}

/* --- 3. Top bar ---------------------------------------------------------- */

.cdx-topbar {
    position: sticky; top: 0; z-index: 30;
    height: var(--cdx-header-h);
    background: color-mix(in srgb, var(--cdx-bg) 85%, transparent);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--cdx-border);
}

/* Same width / centering / padding as .cdx-shell, so the logo's left edge
   lines up with the chapter tree's left edge. */
.cdx-topbar__inner {
    display: flex; align-items: center; gap: .75rem;
    height: 100%;
    max-width: 92rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.cdx-topbar__brand {
    display: flex; align-items: center; gap: .5rem;
    font-weight: 650; font-size: 1rem;
    color: var(--cdx-heading);
    white-space: nowrap;
}
.cdx-topbar__brand:hover { text-decoration: none; }
.cdx-topbar__brand img { max-height: 1.75rem; width: auto; }

/* Site name shown next to the logo. Matches the sidebar's selected-item
   styling: accent colour (auto light/dark) + weight 600, no background
   (the soft backdrop belongs to menu rows only). Slightly smaller than
   the logo's 1.75rem box. */
.cdx-topbar__sitename {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--cdx-accent);
}

.cdx-topbar__search {
    margin-left: auto;
    min-width: 0;
    max-width: 22rem;
    flex: 1 1 auto;
    display: flex; justify-content: flex-end;
}

.cdx-iconbtn {
    display: grid; place-items: center;
    width: 2.25rem; height: 2.25rem;
    border-radius: var(--cdx-radius-sm);
    color: var(--cdx-text-soft);
    transition: background .15s ease, color .15s ease;
}
.cdx-iconbtn:hover { background: var(--cdx-bg-sunken); color: var(--cdx-text); }

.cdx-topbar__navtoggle { display: none; }

/* Sun is shown in dark mode and vice versa */
.cdx-topbar__theme .cdx-icon--sun { display: none; }
.cdx-topbar__theme .cdx-icon--moon { display: block; }
html[data-theme="dark"] .cdx-topbar__theme .cdx-icon--sun { display: block; }
html[data-theme="dark"] .cdx-topbar__theme .cdx-icon--moon { display: none; }
@media (prefers-color-scheme: dark) {
    html[data-theme-choice="auto"] .cdx-topbar__theme .cdx-icon--sun { display: block; }
    html[data-theme-choice="auto"] .cdx-topbar__theme .cdx-icon--moon { display: none; }
}

/* Publii's own search widget */
.cdx-search input[type="search"],
.cdx-topbar__search input,
.cdx-hero__search input {
    width: 100%;
    padding: .5rem .75rem .5rem 2.25rem;
    font-size: .9375rem;
    color: var(--cdx-text);
    background: var(--cdx-bg-soft);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa3b0' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: .625rem center;
    background-size: 1rem;
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius-sm);
    transition: border-color .15s ease, background-color .15s ease;
}
.cdx-hero__search input {
    padding: .6875rem .875rem .6875rem 2.5rem;
    font-size: 1rem;
    background-color: var(--cdx-bg);
}
.cdx-topbar__search input:focus,
.cdx-hero__search input:focus {
    border-color: var(--cdx-accent);
    background-color: var(--cdx-bg);
    outline: none;
}

/* --- 4. Shell layout ----------------------------------------------------- */

.cdx-shell {
    display: grid;
    grid-template-columns: var(--cdx-nav-w) minmax(0, 1fr) var(--cdx-toc-w);
    align-items: start;
    max-width: 92rem;
    margin: 0 auto;
    gap: var(--cdx-gap);
    padding: 0 1.5rem;
}

.cdx-main {
    min-width: 0;
    padding: 2.5rem 0 4rem;
}

/* Desktop: app-like shell. The left tree, the article and the TOC each
   scroll inside their own column; the footer stays docked at the bottom
   of the viewport and never moves with the content. */
@media (min-width: 64em) {
    body {
        display: flex;
        flex-direction: column;
        height: 100vh;
        height: 100dvh;
        overflow: hidden;
    }

    .cdx-shell {
        flex: 1 1 auto;
        min-height: 0;
        align-items: stretch;
        /* body is a flex column now: without an explicit width the auto
           side margins would switch the shell to shrink-to-fit, letting the
           1fr article track (and the centring) breathe with the content. */
        width: 100%;
    }

    .cdx-main {
        overflow-y: auto;
        overscroll-behavior: contain;
        scrollbar-width: thin;
        /* Reserve the scrollbar slot so the article width - and everything
           anchored to it - stays constant as pages get longer or shorter. */
        scrollbar-gutter: stable;
    }

    .cdx-nav,
    .cdx-toc {
        position: static;
        align-self: stretch;
        max-height: none;
    }

    /* The header no longer overlays the article column on desktop */
    .cdx-doc__body h2,
    .cdx-doc__body h3,
    .cdx-doc__body h4 {
        scroll-margin-top: 1rem;
    }

    /* Landing template renders no chapter tree, so its <main> would be
       auto-placed into the 17rem nav column. Span the full grid instead
       and centre the article. */
    .cdx-main--solo {
        grid-column: 1 / -1;
        max-width: 56rem;
        margin: 0 auto;
    }
}

/* Content column never gets wider than the configured measure */
.cdx-doc { max-width: var(--cdx-content-w); }
.cdx-doc--wide { max-width: calc(var(--cdx-content-w) + 14rem); }
.cdx-doc--landing { max-width: 56rem; margin: 0 auto; }

/* --- 5. Chapter tree ----------------------------------------------------- */

.cdx-nav {
    position: sticky;
    top: var(--cdx-header-h);
    align-self: start;
    max-height: calc(100vh - var(--cdx-header-h));
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    padding: 2rem .25rem 3rem 0;
    scrollbar-width: thin;
}

.cdx-nav__empty {
    margin: 0 0 0 .75rem;
    font-size: .875rem;
    color: var(--cdx-text-soft);
}

.cdx-nav__list { list-style: none; margin: 0; padding: 0; }
.cdx-nav__list--sub {
    margin-left: .875rem;
    padding-left: .75rem;
    border-left: 1px solid var(--cdx-border);
}

.cdx-nav__item { margin: 0; }

.cdx-nav__row {
    display: flex; align-items: center; gap: .125rem;
}

.cdx-nav__link {
    flex: 1 1 auto;
    min-width: 0;
    padding: .3125rem .5rem;
    font-size: .9375rem;
    line-height: 1.4;
    color: var(--cdx-text-soft);
    border-radius: var(--cdx-radius-sm);
    transition: color .12s ease, background-color .12s ease;
}
.cdx-nav__link:hover {
    color: var(--cdx-heading);
    background: var(--cdx-bg-soft);
    text-decoration: none;
}

/* Current page, plus the top-level group above it */
.cdx-nav__item.is-active > .cdx-nav__row > .cdx-nav__link,
.cdx-nav__item.is-parent > .cdx-nav__row > .cdx-nav__link,
.cdx-nav__item.is-active-parent > .cdx-nav__row > .cdx-nav__link {
    color: var(--cdx-accent);
    font-weight: 600;
}
.cdx-nav__item.is-active > .cdx-nav__row > .cdx-nav__link {
    background: var(--cdx-accent-soft);
}

/* Deeper levels read smaller */
.cdx-nav__list--sub .cdx-nav__link { font-size: .875rem; }

.cdx-nav__caret {
    display: grid; place-items: center;
    width: 1.5rem; height: 1.75rem;
    color: var(--cdx-text-soft);
    border-radius: var(--cdx-radius-sm);
    transition: transform .18s ease, background-color .12s ease;
}
.cdx-nav__caret:hover { background: var(--cdx-bg-sunken); color: var(--cdx-heading); }
.cdx-nav__caret .cdx-icon { width: .875rem; height: .875rem; }

.cdx-nav__item.is-open > .cdx-nav__row > .cdx-nav__caret { transform: rotate(90deg); }

/* Sub-levels are folded by default; the caret toggles `.is-open`.
   NOTE: this is NOT gated on the "collapsible" setting any more - the caret
   must always work, otherwise it reads as a dead button when the setting is off. */
.cdx-nav__item--branch > .cdx-nav__list--sub { display: none; }
.cdx-nav__item--branch.is-open > .cdx-nav__list--sub { display: block; }
.cdx-nav[data-expand-all="true"] .cdx-nav__item--branch > .cdx-nav__list--sub { display: block; }

/* Optional chapter numbering */
.cdx-nav--numbered > .cdx-nav__inner > .cdx-nav__list { counter-reset: cdxchapter; }
.cdx-nav--numbered > .cdx-nav__inner > .cdx-nav__list > .cdx-nav__item > .cdx-nav__row > .cdx-nav__link::before {
    counter-increment: cdxchapter;
    content: counter(cdxchapter) ". ";
    font-variant-numeric: tabular-nums;
    color: var(--cdx-text-soft);
}

/* --- 6. Table of contents ------------------------------------------------ */

.cdx-toc {
    position: sticky;
    top: var(--cdx-header-h);
    align-self: start;
    max-height: calc(100vh - var(--cdx-header-h));
    overflow-y: auto;
    scrollbar-gutter: stable;
    padding: 2.5rem 0 3rem;
    scrollbar-width: thin;
}
.cdx-toc--off, .cdx-toc.is-empty { display: none; }

.cdx-toc__title {
    margin: 0 0 .625rem;
    font-size: .75rem;
    font-weight: 650;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--cdx-text-soft);
}

.cdx-toc__nav { border-left: 1px solid var(--cdx-border); }

.cdx-toc__nav ul { list-style: none; margin: 0; padding: 0; }

.cdx-toc__nav a {
    display: block;
    padding: .25rem .75rem;
    font-size: .8125rem;
    line-height: 1.5;
    color: var(--cdx-text-soft);
    border-left: 2px solid transparent;
    margin-left: -1px;
    transition: color .12s ease, border-color .12s ease;
}
.cdx-toc__nav a:hover { color: var(--cdx-heading); text-decoration: none; }

.cdx-toc__nav a.is-current {
    color: var(--cdx-accent);
    border-left-color: var(--cdx-accent);
    font-weight: 600;
}

.cdx-toc__nav ul ul a { padding-left: 1.5rem; font-size: .78125rem; }
.cdx-toc__nav ul ul ul a { padding-left: 2.25rem; }

/* --- 7. Breadcrumbs ------------------------------------------------------ */

.cdx-crumbs { margin-bottom: 1rem; }
.cdx-crumbs ol {
    display: flex; flex-wrap: wrap; align-items: center; gap: .375rem;
    list-style: none; margin: 0; padding: 0;
    font-size: .8125rem;
    color: var(--cdx-text-soft);
}
.cdx-crumbs li + li::before { content: "/"; margin-right: .375rem; color: var(--cdx-border); }
.cdx-crumbs a { color: var(--cdx-text-soft); }
.cdx-crumbs a:hover { color: var(--cdx-accent); }

/* --- 8. Article ---------------------------------------------------------- */

.cdx-doc__title {
    margin: 0 0 .625rem;
    font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.375rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -.02em;
    color: var(--cdx-heading);
}
.cdx-doc__title--center { text-align: center; }

.cdx-doc__meta {
    display: flex; flex-wrap: wrap; align-items: center; gap: .75rem;
    margin-bottom: 2rem;
    font-size: .8125rem;
    color: var(--cdx-text-soft);
}
.cdx-doc__meta a { color: var(--cdx-text-soft); }
.cdx-doc__meta a:hover { color: var(--cdx-accent); }
.cdx-doc__tags { display: flex; flex-wrap: wrap; gap: .375rem; }
.cdx-doc__tags a {
    padding: .0625rem .5rem;
    background: var(--cdx-bg-soft);
    border: 1px solid var(--cdx-border);
    border-radius: 999px;
    font-size: .75rem;
}

.cdx-doc__figure { margin: 0 0 2rem; }
.cdx-doc__figure figcaption {
    margin-top: .625rem;
    font-size: .8125rem;
    color: var(--cdx-text-soft);
    text-align: center;
}

.cdx-doc__updated {
    margin: 3rem 0 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--cdx-border-soft);
    font-size: .8125rem;
    color: var(--cdx-text-soft);
}

/* Body rhythm */
.cdx-doc__body { font-size: 1rem; }

.cdx-doc__body h2,
.cdx-doc__body h3,
.cdx-doc__body h4 {
    color: var(--cdx-heading);
    letter-spacing: -.01em;
    scroll-margin-top: calc(var(--cdx-header-h) + 1rem);
}

.cdx-doc__body h2 {
    margin: 2.75rem 0 1rem;
    padding-bottom: .5rem;
    font-size: 1.5rem;
    font-weight: 650;
    line-height: 1.3;
    border-bottom: 1px solid var(--cdx-border-soft);
}
.cdx-doc__body h3 { margin: 2rem 0 .75rem; font-size: 1.1875rem; font-weight: 650; }
.cdx-doc__body h4 { margin: 1.5rem 0 .5rem; font-size: 1rem; font-weight: 650; }

.cdx-doc__body p { margin: 0 0 1.25rem; }

.cdx-doc__body ul,
.cdx-doc__body ol { margin: 0 0 1.25rem; padding-left: 1.5rem; }
.cdx-doc__body li { margin-bottom: .375rem; }
.cdx-doc__body li > ul,
.cdx-doc__body li > ol { margin: .375rem 0 .5rem; }

.cdx-doc__body blockquote {
    margin: 0 0 1.25rem;
    padding: .25rem 0 .25rem 1.25rem;
    border-left: 3px solid var(--cdx-accent);
    color: var(--cdx-text-soft);
}
.cdx-doc__body blockquote p:last-child { margin-bottom: 0; }

.cdx-doc__body hr {
    margin: 2.5rem 0;
    border: 0;
    border-top: 1px solid var(--cdx-border);
}

/* Anchor links next to headings, added by scripts.js */
.cdx-anchor {
    margin-left: .375rem;
    opacity: 0;
    font-weight: 400;
    color: var(--cdx-text-soft);
    transition: opacity .12s ease;
}
.cdx-doc__body h2:hover .cdx-anchor,
.cdx-doc__body h3:hover .cdx-anchor,
.cdx-doc__body h4:hover .cdx-anchor,
.cdx-anchor:focus { opacity: 1; }

/* Inline code */
.cdx-doc__body code,
.cdx-list__excerpt code,
.cdx-latest__excerpt code {
    padding: .125rem .375rem;
    font-family: var(--cdx-font-mono);
    font-size: .875em;
    color: var(--cdx-heading);
    background: var(--cdx-code-bg);
    border: 1px solid var(--cdx-border-soft);
    border-radius: var(--cdx-radius-sm);
}

/* Custom elements offered in the editor */
.cdx-doc__body .cmd { color: var(--cdx-accent); background: var(--cdx-accent-soft); border-color: transparent; }
.cdx-doc__body .filepath { color: var(--cdx-text-soft); }
.cdx-doc__body .kbd {
    display: inline-block;
    padding: .0625rem .375rem;
    font-family: var(--cdx-font-mono);
    font-size: .8125rem;
    color: var(--cdx-heading);
    background: var(--cdx-bg);
    border: 1px solid var(--cdx-border);
    border-bottom-width: 2px;
    border-radius: var(--cdx-radius-sm);
}

/* Admonitions */
.cdx-doc__body .admonition {
    margin: 0 0 1.25rem;
    padding: .875rem 1rem .875rem 1.25rem;
    border-left: 3px solid var(--cdx-accent);
    border-radius: 0 var(--cdx-radius-sm) var(--cdx-radius-sm) 0;
    background: var(--cdx-bg-soft);
}
.cdx-doc__body .admonition p:last-child { margin-bottom: 0; }
.cdx-doc__body .admonition--tip { border-left-color: #2f9e5f; }
.cdx-doc__body .admonition--warning { border-left-color: #d99000; }
.cdx-doc__body .admonition--caution { border-left-color: #d5453f; }

/* Code blocks */
.cdx-doc__body pre {
    position: relative;
    margin: 0 0 1.5rem;
    padding: 1rem 1.125rem;
    overflow-x: auto;
    font-family: var(--cdx-font-mono);
    font-size: .875rem;
    line-height: 1.65;
    color: var(--cdx-heading);
    background: var(--cdx-code-bg);
    border: 1px solid var(--cdx-border-soft);
    border-radius: var(--cdx-radius);
    tab-size: 2;
}
.cdx-doc__body pre code {
    padding: 0;
    font-size: inherit;
    color: inherit;
    background: none;
    border: 0;
    border-radius: 0;
}

.cdx-code { position: relative; }
.cdx-code__copy {
    position: absolute;
    top: .5rem; right: .5rem;
    display: inline-flex; align-items: center; gap: .3125rem;
    padding: .25rem .5rem;
    font-size: .75rem;
    color: var(--cdx-text-soft);
    background: var(--cdx-bg);
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius-sm);
    opacity: 0;
    transition: opacity .12s ease, color .12s ease;
}
.cdx-code:hover .cdx-code__copy,
.cdx-code__copy:focus { opacity: 1; }
.cdx-code__copy:hover { color: var(--cdx-heading); }
.cdx-code__copy.is-done { color: #2f9e5f; opacity: 1; }

/* Tables - allowed to break out of the reading measure */
.cdx-doc__body .table-wrapper,
.cdx-doc__body table {
    display: block;
    width: 100%;
    overflow-x: auto;
}
.cdx-doc__body table {
    margin: 0 0 1.5rem;
    border-collapse: collapse;
    font-size: .9375rem;
}
.cdx-doc__body th,
.cdx-doc__body td {
    padding: .625rem .875rem;
    border: 1px solid var(--cdx-border);
    text-align: left;
    vertical-align: top;
}
.cdx-doc__body thead th { background: var(--cdx-bg-soft); font-weight: 650; color: var(--cdx-heading); }
.cdx-doc__body tbody tr:nth-child(even) { background: color-mix(in srgb, var(--cdx-bg-soft) 55%, transparent); }

/* Block editor output */
.cdx-doc__body .post__toc {
    margin: 0 0 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--cdx-bg-soft);
    border: 1px solid var(--cdx-border-soft);
    border-radius: var(--cdx-radius);
}
.cdx-doc__body .post__toc ul { list-style: none; padding-left: .5rem; }
.cdx-doc__body figcaption { font-size: .8125rem; color: var(--cdx-text-soft); }
.cdx-doc__body .gallery { margin: 0 0 1.5rem; }

/* --- 9. Previous / next -------------------------------------------------- */

.cdx-stepnav {
    display: grid; gap: .75rem;
    grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
    max-width: var(--cdx-content-w);
    margin-top: 3rem;
}
.cdx-stepnav--off { display: none; }

.cdx-stepnav__item {
    display: flex; flex-direction: column; gap: .25rem;
    padding: .875rem 1rem;
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius);
    color: var(--cdx-heading);
    transition: border-color .15s ease, background-color .15s ease;
}
.cdx-stepnav__item:hover {
    border-color: var(--cdx-accent);
    background: var(--cdx-bg-soft);
    text-decoration: none;
}
.cdx-stepnav__item--next { text-align: right; align-items: flex-end; }

.cdx-stepnav__dir {
    display: inline-flex; align-items: center; gap: .3125rem;
    font-size: .75rem;
    color: var(--cdx-text-soft);
}
.cdx-stepnav__label { font-size: .9375rem; font-weight: 600; line-height: 1.4; }

/* --- 10. See also -------------------------------------------------------- */

.cdx-related {
    max-width: var(--cdx-content-w);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--cdx-border-soft);
}
.cdx-related__title {
    margin: 0 0 1rem;
    font-size: .75rem;
    font-weight: 650;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--cdx-text-soft);
}
.cdx-related__list {
    display: grid; gap: .625rem;
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
    list-style: none;
    margin: 0; padding: 0;
}
.cdx-related__list li { margin: 0; }
.cdx-related__list a { font-weight: 600; }
.cdx-related__excerpt { display: block; font-size: .8125rem; color: var(--cdx-text-soft); }

/* --- 11. Homepage -------------------------------------------------------- */

.cdx-hero { padding: 1rem 0 2.5rem; }
.cdx-hero__title {
    margin: 0 0 .75rem;
    font-size: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -.025em;
    color: var(--cdx-heading);
}
.cdx-hero__text {
    max-width: 40rem;
    margin-bottom: 2rem;
    font-size: 1.125rem;
    color: var(--cdx-text-soft);
}
.cdx-hero__text p:last-child { margin-bottom: 0; }
.cdx-hero__search { max-width: 26rem; }
.cdx-hero__search--inline { max-width: 26rem; margin: 1.5rem 0 0; }

.cdx-cards {
    display: grid; gap: 1rem;
    grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
    margin-bottom: 3rem;
}
.cdx-card {
    display: flex; flex-direction: column; gap: .375rem;
    padding: 1.125rem 1.25rem;
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius);
    color: var(--cdx-heading);
    transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.cdx-card:hover {
    border-color: var(--cdx-accent);
    transform: translateY(-2px);
    box-shadow: var(--cdx-shadow);
    text-decoration: none;
}
.cdx-card__title { font-weight: 650; line-height: 1.35; }
.cdx-card__meta { font-size: .8125rem; color: var(--cdx-text-soft); }
.cdx-card__arrow { margin-top: auto; color: var(--cdx-text-soft); }

.cdx-latest { padding-top: 1rem; }
.cdx-latest__title {
    margin: 0 0 1rem;
    font-size: .75rem;
    font-weight: 650;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--cdx-text-soft);
}
.cdx-latest__list, .cdx-list { list-style: none; margin: 0; padding: 0; }

.cdx-latest__item,
.cdx-list__item {
    display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem;
    padding: .875rem 0;
    border-bottom: 1px solid var(--cdx-border-soft);
}
.cdx-latest__link,
.cdx-list__link { font-weight: 600; color: var(--cdx-heading); }
.cdx-latest__link:hover,
.cdx-list__link:hover { color: var(--cdx-accent); }

.cdx-latest__tag,
.cdx-latest__date,
.cdx-list__date {
    margin-left: auto;
    font-size: .8125rem;
    color: var(--cdx-text-soft);
    white-space: nowrap;
}
.cdx-latest__tag {
    margin-left: 0;
    padding: 0 .5rem;
    background: var(--cdx-bg-soft);
    border: 1px solid var(--cdx-border);
    border-radius: 999px;
    font-size: .75rem;
}
.cdx-latest__excerpt,
.cdx-list__excerpt {
    flex: 1 1 100%;
    margin: .25rem 0 0;
    font-size: .875rem;
    color: var(--cdx-text-soft);
}
.cdx-list__empty, .cdx-latest__empty { color: var(--cdx-text-soft); }

/* --- 12. Listing headers ------------------------------------------------- */

.cdx-pagehead { margin-bottom: 2rem; }
.cdx-pagehead__title {
    margin: 0 0 .75rem;
    font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--cdx-heading);
}
.cdx-pagehead__text { color: var(--cdx-text-soft); }
.cdx-pagehead__text p:last-child { margin-bottom: 0; }
.cdx-pagehead__count { margin: .5rem 0 0; font-size: .875rem; color: var(--cdx-text-soft); }

.cdx-chapters {
    display: grid; gap: 1rem;
    grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
    list-style: none; margin: 0; padding: 0;
}
.cdx-chapters__item {
    padding: 1.125rem 1.25rem;
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius);
}
.cdx-chapters__title { margin: 0 0 .25rem; font-size: 1.0625rem; font-weight: 650; }
.cdx-chapters__count { margin: 0 0 .5rem; font-size: .8125rem; color: var(--cdx-text-soft); }
.cdx-chapters__desc { font-size: .875rem; color: var(--cdx-text-soft); }
.cdx-chapters__desc p:last-child { margin-bottom: 0; }

/* --- 13. Pagination ------------------------------------------------------ */

.cdx-pagination {
    display: flex; justify-content: space-between; gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--cdx-border-soft);
}
.cdx-pagination__link {
    display: inline-flex; align-items: center; gap: .375rem;
    padding: .5rem .875rem;
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius);
    font-size: .875rem;
    font-weight: 600;
    color: var(--cdx-heading);
}
.cdx-pagination__link:hover { border-color: var(--cdx-accent); text-decoration: none; }
.cdx-pagination__link--next { margin-left: auto; }

/* --- 14. Subpages, bio, misc -------------------------------------------- */

.cdx-subpages { margin-top: 3rem; }
.cdx-subpages__title {
    margin: 0 0 1rem;
    font-size: .75rem;
    font-weight: 650;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--cdx-text-soft);
}
.cdx-subpages__list {
    display: grid; gap: .625rem;
    grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
    list-style: none; margin: 0; padding: 0;
}
.cdx-subpages__list li { margin: 0; }
.cdx-subpages__list a {
    display: block;
    padding: .75rem 1rem;
    border: 1px solid var(--cdx-border);
    border-radius: var(--cdx-radius);
    font-weight: 600;
    color: var(--cdx-heading);
}
.cdx-subpages__list a:hover { border-color: var(--cdx-accent); text-decoration: none; }
.cdx-subpages__list ul { list-style: none; margin: .5rem 0 0; padding-left: 1rem; }
.cdx-subpages__list ul a { border: 0; padding: .125rem 0; font-weight: 400; color: var(--cdx-text-soft); }

.cdx-bio {
    display: flex; gap: 1rem; align-items: flex-start;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--cdx-border-soft);
}
.cdx-bio__avatar { width: 3.5rem; height: 3.5rem; border-radius: 50%; object-fit: cover; }
.cdx-bio__name { margin: 0 0 .25rem; font-size: 1rem; font-weight: 650; }
.cdx-bio__desc { font-size: .875rem; color: var(--cdx-text-soft); }
.cdx-bio__desc p:last-child { margin-bottom: 0; }

.cdx-banner { margin-bottom: 2rem; }

.cdx-note {
    margin-top: 2.5rem;
    font-size: .8125rem;
    color: var(--cdx-text-soft);
}

.cdx-btn {
    display: inline-block;
    padding: .625rem 1.25rem;
    background: var(--cdx-accent);
    color: var(--cdx-accent-contrast);
    border-radius: var(--cdx-radius);
    font-weight: 600;
}
.cdx-btn:hover { text-decoration: none; filter: brightness(1.08); }

.cdx-error { padding: 4rem 0; text-align: center; }
.cdx-error__code {
    margin: 0;
    font-family: var(--cdx-font-mono);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--cdx-accent-soft);
    line-height: 1;
}
.cdx-error__title { margin: .5rem 0 .75rem; font-size: 1.75rem; color: var(--cdx-heading); }
.cdx-error__text { max-width: 34rem; margin: 0 auto 2rem; color: var(--cdx-text-soft); }
.cdx-error__actions { display: flex; flex-direction: column; align-items: center; gap: 1rem; }

.cdx-search-results { min-height: 8rem; }

/* --- 15. Footer ---------------------------------------------------------- */

.cdx-footer {
    margin-top: 4rem;
    padding: 1rem 1.5rem 1.5rem;
    border-top: 1px solid var(--cdx-border);
    background: var(--cdx-bg-soft);
    font-size: .875rem;
    color: var(--cdx-text-soft);
}
.cdx-footer__list {
    display: flex; flex-wrap: wrap; gap: 1.25rem;
    list-style: none; margin: 0 0 1rem; padding: 0;
}
.cdx-footer__nav { max-width: 92rem; margin: 0 auto; }
.cdx-footer__copy { max-width: 92rem; margin: 0 auto; }
.cdx-footer__copy p { margin: 0; }
.cdx-footer__copy a { color: var(--cdx-text-soft); }

/* Desktop app-shell: the footer is docked, keep top and bottom spacing
   equal (same value as the top padding users see now). Lives here, after
   the base rule - a same-specificity override earlier in the file would
   simply lose. */
@media (min-width: 64em) {
    .cdx-footer {
        margin-top: 0;
        padding: 1rem 1.5rem;
    }
}

/* --- 16. Responsive ------------------------------------------------------ */

/* Drop the right-hand table of contents first */
@media (max-width: 82em) {
    .cdx-shell { grid-template-columns: var(--cdx-nav-w) minmax(0, 1fr); }
    .cdx-toc { display: none; }
}

/* Below this the tree becomes a drawer */
@media (max-width: 64em) {
    .cdx-shell {
        display: block;
        padding: 0 1.25rem;
    }

    .cdx-topbar__inner { padding: 0 1.25rem; }

    .cdx-topbar__navtoggle { display: grid; }

    /* 手机/窄屏：汉堡与主题切换并排顶在右上角，样式对齐官网首页
       （https://zhenjiapp.work/index.html 的 .menu-toggle / .theme-toggle） */
    .cdx-topbar__inner { gap: .625rem; }
    .cdx-topbar__brand { order: 1; }
    .cdx-topbar__search { order: 2; margin-left: 0; }
    /* 顺序与官网首页一致：主题切换在前，汉堡菜单顶在最右 */
    .cdx-topbar__theme { order: 3; margin-left: auto; }
    .cdx-topbar__navtoggle { order: 4; }

    .cdx-topbar__navtoggle,
    .cdx-topbar__theme {
        width: 2.5rem;
        height: 2.5rem;
        border: 1px solid var(--cdx-border);
        border-radius: 999px;
        background: transparent;
        color: var(--cdx-text);
        transition: border-color .2s, color .2s, transform .2s;
    }
    .cdx-topbar__navtoggle:hover,
    .cdx-topbar__theme:hover {
        background: transparent;
        border-color: var(--cdx-accent);
        color: var(--cdx-accent);
    }
    /* 主题按钮悬停时轻轻一转，与官网首页同一个手感 */
    .cdx-topbar__theme:hover { transform: rotate(15deg); }

    .cdx-topbar__navtoggle .cdx-icon { width: 1.25rem; height: 1.25rem; }
    .cdx-topbar__theme .cdx-icon { width: 1.125rem; height: 1.125rem; }

    /* 抽屉打开时汉堡变成叉 */
    .cdx-topbar__navtoggle .cdx-icon--close { display: none; }
    body.cdx-nav-open .cdx-topbar__navtoggle .cdx-icon--menu { display: none; }
    body.cdx-nav-open .cdx-topbar__navtoggle .cdx-icon--close { display: block; }

    .cdx-nav {
        position: fixed;
        top: var(--cdx-header-h);
        left: 0;
        z-index: 20;
        width: min(19rem, 84vw);
        height: calc(100vh - var(--cdx-header-h));
        max-height: none;
        padding: 1.25rem;
        overflow-y: auto;
        background: var(--cdx-bg);
        border-right: 1px solid var(--cdx-border);
        box-shadow: var(--cdx-shadow);
        transform: translateX(-105%);
        transition: transform .22s ease;
    }
    body.cdx-nav-open .cdx-nav { transform: none; }

    /* Dim the page behind the drawer */
    body.cdx-nav-open::after {
        content: "";
        position: fixed;
        inset: var(--cdx-header-h) 0 0;
        z-index: 15;
        background: rgba(0, 0, 0, .35);
    }

    .cdx-main { padding-top: 1.75rem; }
    .cdx-main--solo { max-width: 56rem; margin: 0 auto; }
    .cdx-doc { max-width: none; }
    .cdx-doc--wide { max-width: none; }
}

@media (max-width: 40em) {
    :root { --cdx-gap: 1.5rem; }

    .cdx-shell { padding: 0 1rem; }
    /* 顶栏 10px 间距与官网首页一致（上面 64em 断点设的是同一组按钮） */
    .cdx-topbar__inner { gap: .625rem; padding: 0 1rem; }
    .cdx-topbar__search { max-width: none; }
    .cdx-hero { padding-top: 0; }
    .cdx-hero__text { font-size: 1rem; }
    .cdx-stepnav { grid-template-columns: 1fr; }
    .cdx-stepnav__item--next { text-align: left; align-items: flex-start; }
    .cdx-main { padding: 1.25rem 0 3rem; }
}

/* --- 17. Print ----------------------------------------------------------- */

@media print {
    .cdx-topbar, .cdx-nav, .cdx-toc, .cdx-footer, .cdx-stepnav, .cdx-related { display: none !important; }
    .cdx-shell { display: block; padding: 0; }
    body { color: #000; background: #fff; }
    a { color: #000; text-decoration: underline; }
    .cdx-doc__body pre, .cdx-doc__body table { white-space: pre-wrap; word-break: break-word; }
}

/* === 帧记自定义覆盖（2026-09-29，改在 codex 主题源，Publii 重新生成也不会丢）===
   1) 子页面标题与首页 hero 同字号同节奏
   2) 顶栏高度兜底：部分页面 height 被渲染引擎忽略，用 min-height 强制与首页一致 */
.cdx-doc__title {
    margin: 0 0 .75rem;
    font-size: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    line-height: 1.15;
    letter-spacing: -.025em;
}
.cdx-doc__meta { margin-bottom: 2.5rem; }
.cdx-topbar { min-height: var(--cdx-header-h); }
.cdx-topbar__inner { min-height: calc(var(--cdx-header-h) - 1px); }
/* === 覆盖结束 === */