/* Base resets and variables */
:root {
    --max-width: 800px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    --color-text: #24292e;
    --color-bg: #ffffff;
    --color-heading: #24292e;
    --color-link: #0366d6;
    --color-border: #e1e4e8;
    --color-code-bg: #f6f8fa;
    --color-blockquote: #6a737d;

    /* New semantic colours for admonitions – feel free to adjust */
    --color-note:    #448aff;
    --color-warning: #f57c00;
    --color-danger:  #d32f2f;
    --color-tip:     #388e3c;

    --color-note-bg:    #e3f2fd;
    --color-warning-bg: #fff3e0;
    --color-danger-bg:  #ffebee;
    --color-tip-bg:     #e8f5e9;

    --color-mark-bg:    #fffacd;
    --color-ins-bg:     #e0ffe0;

    /* TOC indentation & number prefix sizing */
    --toc-indent-level1:      0rem;       /* top-level items (h2) – usually no indent */
    --toc-indent-level2:      1.4rem;     /* h3 under h2 */
    --toc-indent-level3:      1.2rem;     /* h4 under h3 – additional step */
    --toc-number-width:       2.1em;      /* space reserved for the number prefix (e.g. "3.14. ") */
    --toc-number-padding:     0.4em;      /* space between number and text */
    --toc-nested-margin:      0.15em;     /* vertical spacing between nested lists */
}

/* Tighter version for smaller screens */
@media (max-width: 600px) {
    :root {
        --toc-indent-level2:  1.1rem;
        --toc-indent-level3:  1.0rem;
        --toc-number-width:   2.0em;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-text: #c9d1d9;
        --color-bg: #0d1117;
        --color-heading: #c9d1d9;
        --color-link: #58a6ff;
        --color-border: #30363d;
        --color-code-bg: #161b22;
        --color-blockquote: #8b949e;

        /* Dark mode variants */
        --color-note:    #82b1ff;
        --color-warning: #ffb74d;
        --color-danger:  #e57373;
        --color-tip:     #81c784;

        --color-note-bg:    #0d47a1;
        --color-warning-bg: #ef6c00;
        --color-danger-bg:  #b71c1c;
        --color-tip-bg:     #1b5e20;

        --color-mark-bg:    #fff176;
        --color-ins-bg:     #a5d6a7;
    }
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.markdown-body {
    max-width: var(--max-width);
    margin: 40px auto;
    padding: 20px;
    box-sizing: border-box;
}

/* Headings */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    color: var(--color-heading);
    font-weight: 600;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    line-height: 1.25;
}

.markdown-body h1 { font-size: 2em; border-bottom: 2px solid var(--color-border); padding-bottom: 0.3em; }
.markdown-body h2 { font-size: 1.5em; border-bottom: 1px solid var(--color-border); padding-bottom: 0.3em; }
.markdown-body h3 { font-size: 1.25em; }
.markdown-body h4 { font-size: 1em; }
.markdown-body h5 { font-size: 0.875em; }
.markdown-body h6 { font-size: 0.85em; color: var(--color-blockquote); }

/* Paragraphs and lists */
.markdown-body p {
    margin-top: 0;
    margin-bottom: 1em;
}

.markdown-body ul,
.markdown-body ol {
    padding-left: 2em;
    margin-top: 0;
    margin-bottom: 1em;
}

.markdown-body li {
    margin-bottom: 0.5em;
}

.markdown-body li > ul,
.markdown-body li > ol {
    margin-top: 0.5em;
}

/* Links */
.markdown-body a {
    color: var(--color-link);
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

/* Code */
.markdown-body code {
    font-family: var(--font-mono);
    background-color: var(--color-code-bg);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-size: 85%;
}

.markdown-body pre {
    background-color: var(--color-code-bg);
    padding: 1em;
    overflow: auto;
    border-radius: 3px;
    margin-bottom: 1em;
}

.markdown-body pre code {
    background: none;
    padding: 0;
    font-size: 100%;
}

/* Blockquotes */
.markdown-body blockquote {
    margin: 0 0 1em;
    padding: 0 1em;
    color: var(--color-blockquote);
    border-left: 0.25em solid var(--color-border);
}

/* Tables */
.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 1em;
    border: 1px solid var(--color-border);
}

.markdown-body th,
.markdown-body td {
    padding: 0.5em 1em;
    border: 1px solid var(--color-border);
}

.markdown-body th {
    background-color: var(--color-code-bg);
    font-weight: 600;
}

.markdown-body tr:nth-child(even) {
    background-color: var(--color-code-bg);
}

/* Images */
.markdown-body img {
    max-width: 100%;
    height: auto;
    box-sizing: border-box;
}

/* Horizontal rules */
.markdown-body hr {
    height: 0.25em;
    padding: 0;
    margin: 1.5em 0;
    background-color: var(--color-border);
    border: 0;
}


/* ──────────────────────────────────────────────────────────────────────────────
   New styles for markdown-it plugins
   ────────────────────────────────────────────────────────────────────────────── */

/* Anchor permalinks (markdown-it-anchor with headerLink style) */
.markdown-body .header-anchor {
    color: var(--color-link);
    text-decoration: none;
    font-size: 0.9em;
    margin-left: 0.4em;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.markdown-body h1:hover .header-anchor,
.markdown-body h2:hover .header-anchor,
.markdown-body h3:hover .header-anchor,
.markdown-body h4:hover .header-anchor,
.markdown-body h5:hover .header-anchor,
.markdown-body h6:hover .header-anchor {
    opacity: 0.6;
}

.markdown-body .header-anchor:hover,
.markdown-body .header-anchor:focus {
    opacity: 1;
    text-decoration: none;
}

/* Abbreviations (markdown-it-abbr) */
.markdown-body abbr[title] {
    border-bottom: 1px dotted var(--color-blockquote);
    cursor: help;
    text-decoration: none;
}

/* Inserted text (markdown-it-ins) */
.markdown-body ins {
    background-color: var(--color-ins-bg);
    text-decoration: none;
    padding: 0 1px;
}

/* Marked/highlighted text (markdown-it-mark) */
.markdown-body mark {
    background-color: var(--color-mark-bg);
    padding: 0 2px;
    border-radius: 2px;
}

/* Admonition / note containers (markdown-it-container) */
.markdown-body .admonition {
    margin: 1.2em 0;
    padding: 0.8em 1.2em;
    border-left: 4px solid;
    border-radius: 4px;
    background-color: var(--color-code-bg);
}

.markdown-body .admonition.note {
    border-left-color: var(--color-note);
    background-color: var(--color-note-bg);
}

.markdown-body .admonition.warning {
    border-left-color: var(--color-warning);
    background-color: var(--color-warning-bg);
}

/* You can add more types as needed, for example: */
.markdown-body .admonition.danger {
    border-left-color: var(--color-danger);
    background-color: var(--color-danger-bg);
}

.markdown-body .admonition.tip {
    border-left-color: var(--color-tip);
    background-color: var(--color-tip-bg);
}

.markdown-body .admonition > p.admonition-title {
    margin: 0 0 0.6em 0;
    font-weight: 600;
    color: inherit;
}

/* Table of Contents – markdown-it-toc-done-right */
.table-of-contents {
  background-color: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1.2rem 1.6rem;
  margin: 1.8rem 0 2.4rem;
  font-size: 0.95rem;
}

.table-of-contents nav {
  margin: 0;
}

.table-of-contents ul,
.table-of-contents ol {
  list-style: none;
  padding-left: 1.2rem;
  margin: 0;
}

.table-of-contents li {
  margin: 0.35rem 0;
}

.table-of-contents a {
  color: var(--color-link);
  text-decoration: none;
}

.table-of-contents a:hover,
.table-of-contents a:focus {
  text-decoration: underline;
}

/* Nested levels indentation */
.table-of-contents ul ul,
.table-of-contents ol ol {
  padding-left: 1.4rem;
}

/* ──────────────────────────────────────────────────────────────────────────────
   Numbered TOC starting numbering from h2 (no "1." on the top h2 items)
   ────────────────────────────────────────────────────────────────────────────── */

.table-of-contents ol {
    counter-reset: dummy;
    list-style: none;
    padding-left: var(--toc-indent-level1);
    margin: 0.8em 0;
}

.table-of-contents > ol > li {
    padding-left: 0;
    text-indent: 0;
    margin: 0.5em 0;
}

.table-of-contents > ol > li > a {
/*     font-weight: 600; */
}

/* h3 level */
.table-of-contents ol ol {
    counter-reset: level2;
    padding-left: var(--toc-indent-level2);
    margin: var(--toc-nested-margin) 0;
}

.table-of-contents ol ol li {
    counter-increment: level2;
    padding-left: calc(var(--toc-number-width) + var(--toc-number-padding));
    text-indent: calc(-1 * (var(--toc-number-width) + var(--toc-number-padding)));
    margin: 0.25em 0;
}

.table-of-contents ol ol li:before {
    content: counters(level2, ".") ". ";
    display: inline-block;
    width: var(--toc-number-width);
    text-align: right;
    padding-right: var(--toc-number-padding);
    color: var(--color-blockquote);
    font-variant-numeric: tabular-nums;
}

/* h4 level */
.table-of-contents ol ol ol {
    counter-reset: level3;
    padding-left: var(--toc-indent-level3);
    margin: var(--toc-nested-margin) 0;
}

.table-of-contents ol ol ol li {
    counter-increment: level3;
    padding-left: calc(var(--toc-number-width) + var(--toc-number-padding));
    text-indent: calc(-1 * (var(--toc-number-width) + var(--toc-number-padding)));
}

.table-of-contents ol ol ol li:before {
    content: counters(level3, ".") ". ";
}

/* Add more if you ever go deeper than h4 */

/* Optional: make the numbers slightly less prominent */
.table-of-contents li:before {
    color: var(--color-blockquote);
}

/* Collapsible TOC wrapper */
details.table-of-contents-wrapper {
  margin: 1.5rem 0 2rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  background: var(--color-code-bg);
}

details.table-of-contents-wrapper summary {
  padding: 0.8rem 1.2rem;
  font-weight: 600;
  background: var(--color-border);
  cursor: pointer;
  user-select: none;
}

details.table-of-contents-wrapper summary:hover {
  background: var(--color-border-hover, rgba(0,0,0,0.05)); /* light mode */
}

@media (prefers-color-scheme: dark) {
  details.table-of-contents-wrapper summary:hover {
    background: rgba(255,255,255,0.08);
  }
}

details.table-of-contents-wrapper[open] summary {
  border-bottom: 1px solid var(--color-border);
}

/* The actual TOC container inside */
.table-of-contents {
  padding: 0.8rem 1.4rem 1.2rem;
  margin: 0;
}

/* Optional: nicer arrow / indicator */
summary::-webkit-details-marker {
  color: var(--color-link);
  font-size: 1.1em;
}


/* Print styles */
@media print {
    .markdown-body {
        max-width: none;
        margin: 0;
        padding: 0;
    }
    body {
        background-color: #fff;
        color: #000;
    }
    a {
        color: #000;
        text-decoration: underline;
    }
    pre, code {
        background-color: #f8f8f8 !important;
    }
}