/* CSS Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* CSS Variables - Minimal Set */
/* White and near-black with neutral greys; orange is the only colour */
:root {
    --bg: #ffffff;
    --bg-alt: #f5f5f5;
    --text: #171717;
    --text-body: #3a3a3a; /* 11.4:1 on --bg */
    --text-muted: #6b6b6b; /* 5.3:1 on --bg */
    --border: #e5e5e5;
    /* Orange for bars, borders and the logo; --accent-text is the darker orange that
       reads as text (5.2:1 on --bg, --accent is 3.1:1) */
    --accent: #ff5a00;
    --accent-text: #c2410c;
    --note: #525252; /* Note callouts, 7:1 on their tint */
    --code-bg: #f0f0f0; /* inline code; --bg-alt is too close to --bg to show */
    --font-code:
        "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;
    /* Typography scale */
    --body-size: 16.5px;
    --body-lh: 1.7;
    --measure: 70ch; /* text column width, about 65-70 characters per line */
    --code-size: 13px;
    --code-lh: 1.5;
    --container-pad: 2rem; /* pairs with mobile bleed */
}

[data-theme="dark"] {
    --bg: #131312;
    --bg-alt: #1c1c1b;
    --text: #f2f1ee;
    --text-body: #d3d1cc; /* 12.2:1 on --bg */
    --text-muted: #9c9992; /* 6.5:1 on --bg */
    --border: #2f2e2b;
    --accent: #ff6b1a;
    --accent-text: #ff8a3d; /* 7.9:1 on --bg */
    --note: #a8a49c;
    --code-bg: var(--bg-alt);
}

/* Fonts, all served from static/fonts/.
   Headings: New Computer Modern Bold, cut down to Latin by scripts/heading-font.py.
   Text, code and logo: Latin files downloaded by scripts/vendor-fonts.sh. */
@font-face {
    font-family: "NewCM Heading";
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    src: url("fonts/newcm-heading-bold.5c2fce535c2a488e8949.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Serif";
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    src: url("fonts/ibm-plex-serif-latin-400-normal.c34dc21a56fefb211fb9.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Serif";
    font-weight: 400;
    font-style: italic;
    font-display: swap;
    src: url("fonts/ibm-plex-serif-latin-400-italic.8bf647f692e083adb3ce.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Serif";
    font-weight: 500;
    font-style: normal;
    font-display: swap;
    src: url("fonts/ibm-plex-serif-latin-500-normal.d28da6a53deac3972e36.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Serif";
    font-weight: 600;
    font-style: normal;
    font-display: swap;
    src: url("fonts/ibm-plex-serif-latin-600-normal.7252fb22d2fa9328c632.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Serif";
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    src: url("fonts/ibm-plex-serif-latin-700-normal.e959630b85ce042bca6b.woff2") format("woff2");
}

@font-face {
    font-family: "JetBrains Mono";
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    src: url("fonts/jetbrains-mono-latin-400-normal.2744e71bc74f1dc8874c.woff2") format("woff2");
}

@font-face {
    font-family: "JetBrains Mono";
    font-weight: 400;
    font-style: italic;
    font-display: swap;
    src: url("fonts/jetbrains-mono-latin-400-italic.671645c796ea61d81791.woff2") format("woff2");
}

@font-face {
    font-family: "JetBrains Mono";
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    src: url("fonts/jetbrains-mono-latin-700-normal.83d14b3f2d45090e4e06.woff2") format("woff2");
}

@font-face {
    font-family: "JetBrains Mono";
    font-weight: 700;
    font-style: italic;
    font-display: swap;
    src: url("fonts/jetbrains-mono-latin-700-italic.3cbe6a3671ecb9a4c429.woff2") format("woff2");
}

@font-face {
    font-family: "IBM Plex Mono";
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    src: url("fonts/ibm-plex-mono-latin-400-normal.07eb027add2a92d49ea9.woff2") format("woff2");
}

/* Base Typography */
body {
    font-family: "IBM Plex Serif", Georgia, serif;
    line-height: var(--body-lh);
    background-color: var(--bg);
    color: var(--text);
    font-size: var(--body-size);
    -webkit-font-smoothing: antialiased;
    /* Footer at the bottom of short pages */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

::selection {
    background-color: color-mix(in srgb, var(--accent) 25%, transparent);
}

/* Paragraph spacing */
p {
    margin: 0 0 14px 0;
    /* Splits long words at line ends; the dictionary follows <html lang> */
    hyphens: auto;
    /* Avoids a lone word on the last line */
    text-wrap: pretty;
}

/* A phone column is too narrow to justify without wide gaps between words */
@media (min-width: 769px) {
    p,
    .tldr {
        text-align: justify;
    }

    /* Justification stretches the spaces inside inline code; an inline-block
       keeps them, at the price that such a span no longer breaks across lines */
    p code {
        display: inline-block;
        line-height: 1.3;
    }
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "NewCM Heading", "IBM Plex Serif", Georgia, serif;
    /* The heading font has one weight */
    font-weight: 700;
    line-height: 1.3;
    color: var(--text);
}

/* 32px on a phone, 44px from about 800px */
h1 {
    font-size: clamp(2rem, 1rem + 3.5vw, 2.75rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin: 2.2rem 0 1rem 0;
    text-wrap: balance;
}

/* 24px on a phone, 34px from about 900px */
h2 {
    font-size: clamp(1.5rem, 0.9rem + 2.2vw, 2.125rem);
    line-height: 1.2;
    letter-spacing: -0.005em;
    /* More than the gap around a block inside a section */
    margin: 2.75rem 0 0.75rem 0;
    text-wrap: balance;
}

h3 {
    font-size: 1.5rem;
    margin: 2rem 0 0.75rem 0;
}

h4 {
    font-size: 1.25rem;
    margin: 1.25rem 0 0.5rem 0;
}

h5,
h6 {
    font-size: 1rem;
    margin: 1rem 0 0.5rem 0;
}

/* Layout */
/* One narrow column for header, posts, and footer, so the logo lines up with the text */
.container {
    max-width: calc(var(--measure) + 2 * var(--container-pad));
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

/* Header */
.site-header {
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text);
    text-decoration: none;
    font-family:
        "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;
    display: inline-block;
    /* Keeps the hover area: a link that shrank under the pointer would lose hover and unfold */
    min-width: 15ch;
}

.logo-highlight {
    color: var(--accent);
}

/* Hover or keyboard focus folds the logo down to its orange letters, slides the prompt "$ ./"
   in before them, and types ".sh" after them like a terminal: the cursor stands still while
   keys land at an uneven pace, then blinks. "0xdeafbeef blog" becomes "$ ./dfb.sh".
   Widths are in ch, exact in the monospace logo font. Leaving clears ".sh" and the cursor
   at once and unfolds the rest. The rules here set the states; the motion between them is
   in the prefers-reduced-motion: no-preference block below. */

.logo > span {
    display: inline-block;
    /* An inline-block with hidden overflow sits on its bottom edge, not the baseline */
    vertical-align: top;
    white-space: pre;
    overflow: hidden;
}

.logo-fold {
    width: calc(var(--chars) * 1ch);
}

.logo-prompt {
    width: 0;
    opacity: 0;
    color: var(--text-muted);
}

.logo-tld {
    width: 0;
    color: var(--accent);
}

.logo-cursor {
    width: 0;
    height: 1.1em;
    /* Centres the block in the 1.7 line box */
    margin-top: 0.3em;
    background-color: var(--accent);
}

.logo:is(:hover, :focus-visible) .logo-fold {
    width: 0;
    opacity: 0;
}

.logo:is(:hover, :focus-visible) .logo-prompt {
    width: 4ch;
    opacity: 1;
}

.logo:is(:hover, :focus-visible) .logo-tld {
    width: 3ch;
}

.logo:is(:hover, :focus-visible) .logo-cursor {
    width: 0.6ch;
    margin-left: 0.1ch;
}

@media (prefers-reduced-motion: no-preference) {
    /* Unfolds after the prompt has slid out */
    .logo-fold {
        transition:
            width 0.3s ease 0.15s,
            opacity 0.2s ease 0.15s;
    }

    .logo-prompt {
        transition:
            width 0.2s ease,
            opacity 0.15s ease;
    }

    .logo:is(:hover, :focus-visible) .logo-fold {
        transition:
            width 0.3s ease,
            opacity 0.2s ease;
    }

    /* The prompt is printed, not typed: it slides in once the fold is done */
    .logo:is(:hover, :focus-visible) .logo-prompt {
        transition:
            width 0.25s ease 0.3s,
            opacity 0.2s ease 0.35s;
    }

    /* The cursor shows up after the prompt and moves with each typed key, since it follows .logo-tld */
    .logo:is(:hover, :focus-visible) .logo-tld {
        animation: logo-type 0.5s step-end 0.75s both;
    }

    .logo:is(:hover, :focus-visible) .logo-cursor {
        transition: width 0s 0.55s;
        /* Solid while typing, blinking once typing stops */
        animation: logo-cursor-blink 1.1s steps(1) 1.5s infinite;
    }
}

/* Three keys at uneven intervals, as a hand types */
@keyframes logo-type {
    0% {
        width: 0;
    }

    22% {
        width: 1ch;
    }

    64% {
        width: 2ch;
    }

    100% {
        width: 3ch;
    }
}

@keyframes logo-cursor-blink {
    50% {
        opacity: 0;
    }
}

/* Navigation */
nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

nav a:hover,
nav a.active {
    color: var(--accent-text);
}

/* The social icons sit together, apart from Home and the theme toggle */
.social {
    display: flex;
    gap: 0.25rem;
}

/* Icon links */
.icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 3px;
    color: var(--text-muted);
}

.icon-link:hover {
    color: var(--accent-text);
}

.icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
    display: block;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0.5rem;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        border-color 0.2s ease,
        color 0.2s ease;
}

.theme-toggle:hover {
    color: var(--accent-text);
    border-color: var(--accent);
}

.theme-toggle .icon-sun,
[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

/* Main Content */
main {
    flex: 1;
    padding: 3rem 0;
}

/* Posts on the home page: a plain list */
.post-preview {
    margin-bottom: 2.75rem;
}

.post-preview h2 {
    font-size: 1.5rem;
    margin: 0 0 0.5rem;
}

.post-preview h2 a {
    color: var(--text);
    text-decoration: none;
}

.post-preview h2 a:hover {
    color: var(--accent-text);
}

.post-preview p {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

/* Post page: plain text column, no card */
.post-header h1 {
    margin-top: 0;
}

.post .content {
    color: var(--text-body);
    position: relative; /* holds the .read-mark elements */
}

/* Invisible points at 25/50/75/100% of a post's text; templates/base.html
   reports to Umami when the viewport reaches each one */
.read-mark {
    position: absolute;
    left: 0;
    width: 1px;
    height: 1px;
    pointer-events: none;
}

/* Article Meta */
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0 2rem 0;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

/* Labels (date, reading time, TL;DR, contents, Copy): small uppercase code type */
time,
.reading-time,
.tldr-label,
.toc summary,
.copy-button {
    font-family: var(--font-code);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.75em;
}

time,
.reading-time {
    color: var(--text-muted);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background-color: var(--accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* Content */
.content > *:first-child {
    margin-top: 0;
}

.content > *:last-child {
    margin-bottom: 0;
}

/* Numbered sections, like a paper: 01, 02, 02.1, in small orange code type */
.post .content {
    counter-reset: section;
}

.post .content h2 {
    counter-increment: section;
    counter-reset: subsection;
}

.post .content h3 {
    counter-increment: subsection;
}

.post .content h2::before,
.post .content h3::before {
    margin-right: 0.6em;
    font-family: var(--font-code);
    font-weight: 400;
    font-size: 0.55em;
    letter-spacing: 0.04em;
    vertical-align: 0.35em;
    color: var(--accent-text);
}

.post .content h2::before {
    content: counter(section, decimal-leading-zero);
}

.post .content h3::before {
    content: counter(section, decimal-leading-zero) "." counter(subsection);
}

.content img {
    max-width: 100%;
    height: auto;
    border-radius: 3px;
    margin: 1.5rem 0;
}

.content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 3rem 0;
}

/* Links */
a {
    color: var(--accent-text);
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

a:hover {
    text-decoration-thickness: 3px;
}

/* Code */
code {
    font-family: var(--font-code);
    font-variant-ligatures: common-ligatures contextual;
    font-feature-settings:
        "liga" 1,
        "calt" 1;
    background-color: var(--code-bg);
    color: var(--text);
    padding: 0.15em 0.4em;
    border-radius: 2px;
    font-size: 0.875em;
    /* Paragraphs hyphenate; a command or a name must not get a hyphen it does not have */
    hyphens: none;
}

pre {
    background-color: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 1rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    /* Set on <pre> too: its line box sets the minimum row height of the code inside */
    font-size: var(--code-size);
    line-height: var(--code-lh);
    tab-size: 4;
}

pre code {
    background: none;
    padding: 0;
    font-size: inherit;
    line-height: inherit;
    font-variant-ligatures: common-ligatures contextual;
    font-feature-settings:
        "liga" 1,
        "calt" 1;
}

/* Giallo line markup, required by Zola's highlighter */
.giallo-l {
    display: inline-block;
    min-height: 1lh;
    width: 100%;
    /* An empty line has no text baseline; top alignment keeps it one row tall */
    vertical-align: top;
}

.giallo-ln {
    display: inline-block;
    user-select: none;
    margin-right: 0.4em;
    /* Horizontal only: vertical padding on this inline-block makes every row taller */
    padding: 0 0.4em;
    min-width: 3ch;
    text-align: right;
}

/* The rules below carry two classes to win over the giallo stylesheets, which load later */

/* The themes' own line numbers are 1.9:1 (github-light) and 2.1:1 (one-dark-pro on --bg-alt) */
pre.giallo .giallo-ln {
    color: var(--text-muted);
}

/* one-dark-pro's own grey block; --bg-alt matches inline code */
[data-theme="dark"] pre.giallo {
    background-color: var(--bg-alt);
}


/* The themes' highlight differs from the block by 1.08:1 */
.giallo-l:is(.z-l-hl, .z-d-hl) {
    background-color: color-mix(in srgb, var(--accent) 8%, transparent);
    box-shadow: inset 3px 0 var(--accent);
}

/* Label under a highlighted line, added by the script in base.html.
   Its own row, so it stays in view when the code scrolls sideways */
.code-note {
    display: block;
    text-align: right;
    white-space: normal;
    color: var(--accent-text);
    font-weight: 700;
    user-select: none;
}

/* Source link above an embedded GitHub snippet, 0.5rem above the block */
.github-code-source {
    margin: 1.5rem 0 -1rem;
    font-size: 0.78em;
}

/* Blockquotes: a grey bar, the orange one is the TL;DR's */
blockquote {
    border-left: 4px solid var(--border);
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    background-color: var(--bg-alt);
    font-style: italic;
    color: var(--text-body);
}

blockquote p {
    margin: 0;
}

/* Lists */
ul,
ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background-color: var(--bg);
}

th,
td {
    padding: 0.5rem 0.75rem;
    vertical-align: top;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: var(--bg-alt);
    font-weight: 600;
}

tr:hover {
    background-color: var(--bg-alt);
}

/* Post Navigation */
.post-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    gap: 1rem;
}

.prev-post,
.next-post {
    flex: 1;
    padding: 1rem 1.5rem;
    background-color: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    text-decoration: none;
}

.prev-post:hover,
.next-post:hover {
    background-color: var(--border);
    text-decoration: none;
}

.next-post {
    text-align: right;
}

/* Author Info */
.article-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.author-info p {
    color: var(--text-muted);
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
}

footer p {
    color: var(--text-muted);
    font-size: 0.875em;
}

/* Responsive */
@media (max-width: 768px) {
    .site-header {
        padding: 0.75rem 0;
    }

    .logo {
        font-size: 1.15rem;
    }

    /* Narrower buttons keep the logo on one line next to four icons at 360px */
    nav {
        gap: 0.25rem;
    }

    .icon-link {
        width: 32px;
        height: 32px;
    }

    /* The logo already links home */
    .nav-home {
        display: none;
    }

    main {
        padding: 1.5rem 0;
    }

    h3,
    .post-preview h2 {
        font-size: 1.25rem;
    }

    h4 {
        font-size: 1.125rem;
    }

    .post-navigation {
        flex-direction: column;
    }

    .next-post {
        text-align: left;
    }

    /* A wide table scrolls by itself instead of widening the whole page */
    table {
        display: block;
        overflow-x: auto;
    }
}

/* Focus ring for the keyboard only, in the text orange: --accent is 3.1:1 on white, just over the 3:1 a ring needs */
:is(a, button, summary):focus-visible {
    outline: 2px solid var(--accent-text);
    outline-offset: 2px;
}

/* GitHub-style alerts: > [!NOTE], > [!TIP], > [!IMPORTANT], > [!WARNING], > [!CAUTION] */
blockquote[class^="markdown-alert-"] {
    --alert: var(--note);
    font-style: normal;
    color: var(--text-body);
    margin: 1.5rem 0;
    padding: 0.75rem 1rem;
    border: 1px solid var(--alert);
    border-left-width: 4px;
    border-radius: 3px;
    background-color: color-mix(in srgb, var(--alert) 7%, transparent);
}

blockquote[class^="markdown-alert-"]::before {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--alert);
}

blockquote[class^="markdown-alert-"] > :first-child {
    margin-top: 0;
}

blockquote[class^="markdown-alert-"] > :last-child {
    margin-bottom: 0;
}

/* Title colours are at least 4.5:1 on their tint in each theme */
.markdown-alert-note::before { content: "Note"; }
.markdown-alert-tip { --alert: #166534; }
.markdown-alert-tip::before { content: "Tip"; }
.markdown-alert-important { --alert: #7c3aed; }
.markdown-alert-important::before { content: "Important"; }
.markdown-alert-warning { --alert: #854d0e; }
.markdown-alert-warning::before { content: "Warning"; }
.markdown-alert-caution { --alert: #b91c1c; }
.markdown-alert-caution::before { content: "Caution"; }
[data-theme="dark"] .markdown-alert-tip { --alert: #3fb950; }
[data-theme="dark"] .markdown-alert-important { --alert: #a371f7; }
[data-theme="dark"] .markdown-alert-warning { --alert: #d29922; }
[data-theme="dark"] .markdown-alert-caution { --alert: #f85149; }

/* "#" link after headings, from templates/anchor-link.html */
.zola-anchor {
    margin-left: 0.4em;
    color: var(--text-muted);
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.15s;
}

:is(h1, h2, h3, h4, h5, h6):hover .zola-anchor,
.zola-anchor:focus {
    opacity: 1;
}

.zola-anchor:hover {
    color: var(--accent-text);
}

/* No hover on touch screens: keep the link faintly visible */
@media (hover: none) {
    .zola-anchor {
        opacity: 0.4;
    }
}

/* Copy button on code blocks, added by the script in base.html */
.code-block {
    position: relative;
}

.copy-button {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.2rem 0.6rem;
    color: var(--text-muted);
    background-color: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 2px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s;
}

.code-block:hover .copy-button,
.copy-button:focus {
    opacity: 1;
}

/* Always shown on a touch screen, so it gets a strip of its own above the code */
@media (hover: none) {
    .copy-button {
        opacity: 1;
    }

    .code-block pre {
        padding-top: 2.25rem;
    }
}

/* TL;DR minimal callout: just an accent bar + label */
.tldr {
    border-left: 4px solid var(--accent);
    padding-left: 0.75rem;
    margin: 1.25rem 0 1.5rem;
    hyphens: auto;
}

.tldr-label {
    color: var(--accent-text);
    font-weight: 700;
    margin-right: 0.25rem;
}

.tldr p {
    /* if body renders a <p>, keep it inline */
    display: inline;
    margin: 0;
}

/* A spoiler in a post: the title takes the link colour, so it reads as something to click. */
.content details:not(.toc) {
    margin: 0 0 14px;
}

.content details:not(.toc) > summary {
    color: var(--accent-text);
    font-weight: 600;
    cursor: pointer;
}

.content details:not(.toc) > summary:hover {
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

.content details[open]:not(.toc) > summary {
    margin-bottom: 14px;
}

/* Table of contents after the TL;DR, collapsed until opened */
.toc {
    margin: 0 0 1.5rem;
    font-size: 0.875em;
}

.toc summary {
    color: var(--text-muted);
    cursor: pointer;
}

.toc ol {
    margin: 0.5rem 0 0;
    /* room for "10." inside the text column */
    padding-left: 1.75rem;
}

.toc a {
    color: var(--text-body);
    text-decoration: none;
}

.toc a:hover {
    color: var(--accent-text);
    text-decoration: underline;
    text-decoration-color: var(--accent);
}

.toc ol ol {
    margin-top: 0.25rem;
}

.toc li {
    margin: 0.25rem 0;
}

/* Themed images */
.themed-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 2rem auto;
}

/* Mobile code blocks */
@media (max-width: 768px) {
    :root { --container-pad: 1rem; }

    pre { tab-size: 2; }

    /* Bleed code blocks edge-to-edge on mobile */
    pre {
        margin-left: calc(-1 * var(--container-pad));
        margin-right: calc(-1 * var(--container-pad));
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
}

/* A deliberately tasteless "AI sparkle" on one word of the Claude Desktop post. */
.ai-sparkle {
    display: inline-block;
    white-space: nowrap;
    filter: drop-shadow(0 0 5px rgb(168 85 247 / 0.55)) hue-rotate(0deg);
}

.ai-sparkle-word {
    background: linear-gradient(90deg, #a855f7, #3b82f6, #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ai-sparkle-star { display: inline-block; }

/* It moves only under a real pointer, and only if the reader has not asked for less motion. */
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
    .ai-sparkle:hover {
        animation: ai-sparkle-wobble 0.6s ease-in-out infinite, ai-sparkle-hue 1.5s linear infinite;
    }

    .ai-sparkle:hover .ai-sparkle-star { animation: ai-sparkle-spin 0.9s linear infinite; }
}

@keyframes ai-sparkle-wobble {
    0%, 100% { rotate: -4deg; scale: 1.15; }
    50% { rotate: 4deg; scale: 1.3; }
}

@keyframes ai-sparkle-hue {
    to { filter: drop-shadow(0 0 8px rgb(236 72 153 / 0.8)) hue-rotate(360deg); }
}

@keyframes ai-sparkle-spin {
    to { rotate: 360deg; }
}