/* ═══════════════════════════════════════════════════
   RENDERED MARKDOWN
═══════════════════════════════════════════════════ */
:is(#_sd_rendered, #_sd_write) {
  padding: 40px 48px 60px;
  max-width: 760px;
  margin: 0 auto;

  --md-bg:             #FFFFFF;
  --md-font-family:    'Inter', system-ui, sans-serif;
  --md-base-size:      16px;
  --md-line-height:    1.75;
  --md-color:          #1C1917;
  --md-h-font-family:  inherit;
  --md-h-scale:        1;
  --md-h-margin-bottom: 0.4em;
  --md-h-color:        var(--md-color);
  --md-h1-size:        2.1em;
  --md-h1-color:       var(--md-h-color);
  --md-h1-margin:      0 0 0.3em;
  --md-h1-weight:      700;
  --md-h2-size:        1.55em;
  --md-h2-color:       var(--md-h-color);
  --md-h2-margin:      1.4em 0 0.3em;
  --md-h2-weight:      600;
  --md-h3-size:        1.2em;
  --md-h3-color:       var(--md-h-color);
  --md-h3-margin:      1.2em 0 0.3em;
  --md-h3-weight:      600;
  --md-h4-size:        1.0em;
  --md-h4-color:       var(--md-h-color);
  --md-h4-margin:      1.0em 0 0.25em;
  --md-h4-weight:      600;
  --md-p-color:        var(--md-color);
  --md-list-color:     var(--md-p-color);
  --md-list-spacing:   0.3em;
  --md-list-indent:    1.6em;
  --md-p-line-height:  var(--md-line-height);
  --md-p-margin:       0 0 1.1em;
  --md-link-color:     #2563EB;
  --md-link-decoration: underline;
  --md-code-bg:        #F4F1ED;
  --md-code-color:     #6B21A8;
  --md-code-padding:   0.15em 0.45em;
  --md-code-radius:    4px;
  --md-code-font:      'JetBrains Mono', 'Fira Mono', monospace;
  --md-pre-bg:         #F4F1ED;
  --md-pre-padding:    1.1em 1.25em;
  --md-bq-border:      3px solid #2563EB;
  --md-bq-size:        1em;
  --md-bq-color:       #6B6560;
  --md-bq-padding:     0.5em 1em;
  --md-bq-margin:      1.2em 0;

  font-family: var(--md-font-family);
  font-size: var(--md-base-size);
  color: var(--md-color);
  line-height: var(--md-line-height);
  background-color: var(--md-bg);
}
:is(#_sd_rendered, #_sd_write) h1 {
  font-family: var(--md-h-font-family);
  font-size: calc(var(--md-h1-size) * var(--md-h-scale));
  color: var(--md-h1-color);
  margin: var(--md-h1-margin);
  font-weight: var(--md-h1-weight);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
/* Subsequent H1s mark a new major section — give them real breathing room */
:is(#_sd_rendered, #_sd_write) h1:not(:first-of-type) {
  margin-top: 2em;
}
:is(#_sd_rendered, #_sd_write) h2 {
  font-family: var(--md-h-font-family);
  font-size: calc(var(--md-h2-size) * var(--md-h-scale));
  color: var(--md-h2-color);
  margin: var(--md-h2-margin);
  font-weight: var(--md-h2-weight);
  letter-spacing: -0.015em;
  line-height: 1.3;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--md-h2-border);
}
:is(#_sd_rendered, #_sd_write) h3 {
  font-family: var(--md-h-font-family);
  font-size: calc(var(--md-h3-size) * var(--md-h-scale));
  color: var(--md-h3-color);
  margin: var(--md-h3-margin);
  font-weight: var(--md-h3-weight);
  letter-spacing: -0.01em;
  line-height: 1.4;
}
:is(#_sd_rendered, #_sd_write) h4 {
  font-family: var(--md-h-font-family);
  font-size: calc(var(--md-h4-size) * var(--md-h-scale));
  color: var(--md-h4-color);
  margin: var(--md-h4-margin);
  font-weight: var(--md-h4-weight);
  line-height: 1.5;
}
:is(#_sd_rendered, #_sd_write) p {
  color: var(--md-p-color);
  line-height: var(--md-p-line-height);
  margin: var(--md-p-margin);
}
:is(#_sd_rendered, #_sd_write) a {
  color: var(--md-link-color);
  text-decoration: var(--md-link-decoration);
  text-underline-offset: 2px;
  cursor: pointer;
}
:is(#_sd_rendered, #_sd_write) a:hover { opacity: .8; }

/* ── Collapsible heading sections ── */
#_sd_rendered .md-section > h2,
#_sd_rendered .md-section > h3,
#_sd_rendered .md-section > h4 {
  cursor: pointer;
}
#_sd_rendered .section-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  color: var(--text-3);
  cursor: pointer;
  margin-right: 4px;
  vertical-align: middle;
  transition: transform .18s cubic-bezier(.4,0,.2,1), color .12s;
  transform: rotate(0deg);
}
#_sd_rendered .section-toggle.open {
  transform: rotate(90deg);
}
#_sd_rendered .section-toggle:hover,
#_sd_rendered h1:hover > .section-toggle,
#_sd_rendered .md-section > h2:hover > .section-toggle,
#_sd_rendered .md-section > h3:hover > .section-toggle,
#_sd_rendered .md-section > h4:hover > .section-toggle,
#_sd_rendered > h1:hover ~ .md-section .section-toggle,
#_sd_rendered .md-section > h2:hover ~ .md-section-body .section-toggle,
#_sd_rendered .md-section > h3:hover ~ .md-section-body .section-toggle,
#_sd_rendered .md-section > h4:hover ~ .md-section-body .section-toggle {
  color: var(--text-2);
}
#_sd_rendered .md-section-body:not(.open):not(:has(.md-section-body.open)) > :not(.md-section) {
  display: none;
}
#_sd_rendered .md-section-body:not(.open):not(:has(.md-section-body.open)):has(> :not(.md-section)):has(> .md-section)::before {
  content: "\2026";
  display: block;
  opacity: 1;
  font-weight: bold;
  padding-left: calc(1.2em + 20px);
  font-size: 1rem;
  color: var(--text-3);
  padding-bottom: 10px;
  line-height: 0.1;
}
#_sd_rendered .md-section-body:not(.open):has(.md-section-body.open) > :not(.md-section) {
  opacity: 0.55;
  padding-left: calc(1.2em + 20px);
}
#_sd_rendered .md-section-body:not(.open) > .md-section:not(:has(> .md-section-body.open)) {
  padding-left: 1.2em;
}
#_sd_rendered .md-section-body:not(.open) > .md-section:not(:has(> .md-section-body.open)) > h2,
#_sd_rendered .md-section-body:not(.open) > .md-section:not(:has(> .md-section-body.open)) > h3,
#_sd_rendered .md-section-body:not(.open) > .md-section:not(:has(> .md-section-body.open)) > h4 {
  margin-top: 0.15em;
  margin-bottom: 0.1em;
  padding-bottom: 0;
  border-bottom: none;
  opacity: 0.55;
}

/* ── Header anchor links ── */
#_sd_rendered h1, #_sd_rendered h2, #_sd_rendered h3, #_sd_rendered h4 { position: relative; }
#_sd_rendered .header-anchor {
  display: inline-flex;
  align-items: center;
  margin-left: 6px;
  opacity: 0.5;
  transition: opacity 0.15s;
  color: var(--md-link-color, #2563eb);
  cursor: pointer;
  vertical-align: middle;
}
#_sd_rendered .header-anchor:hover { opacity: 1; }
#_sd_rendered .header-copy-btn {
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  opacity: 0.5;
  transition: opacity 0.15s;
  color: var(--md-link-color, #2563eb);
  cursor: pointer;
  vertical-align: middle;
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  line-height: 1;
}
#_sd_rendered .header-copy-btn:hover { opacity: 1; }

/* ── Scroll padding for anchor jumps ── */
#_sd_content-area { scroll-padding-top: 24px; }

:is(#_sd_rendered, #_sd_write) code {
  background: var(--md-code-bg);
  color: var(--md-code-color);
  padding: var(--md-code-padding);
  border-radius: var(--md-code-radius);
  font-family: var(--md-code-font);
  font-size: 0.85em;
  overflow-wrap: anywhere;
}
#_sd_rendered .pre-wrapper {
  position: relative;
  margin: 1.2em 0;
}
:is(#_sd_rendered, #_sd_write) pre {
  background: var(--md-pre-bg);
  padding: var(--md-pre-padding);
  border-radius: var(--radius-md);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  white-space: pre;
  word-wrap: normal;
  margin: 1.2em 0;
  border: 1px solid var(--md-pre-border);
}
#_sd_rendered pre {
  padding-top: 26px;
  margin: 0;
}
#_sd_rendered .pre-wrapper .copy-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  background: var(--md-pre-bg);
  border: 1px solid var(--md-copy-btn-border);
  border-radius: 4px;
  padding: 3px 5px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.15s;
  color: var(--md-code-color, #6B21A8);
  font-size: 12px;
  line-height: 1;
  display: flex;
  align-items: center;
  gap: 3px;
  z-index: 1;
}
#_sd_rendered .pre-wrapper .copy-btn:hover { opacity: 1; background: var(--md-copy-btn-hover); }
:is(#_sd_rendered, #_sd_write) pre code {
  background: none;
  padding: 0;
  color: var(--md-code-color);
  font-family: var(--md-code-font);
  font-size: 0.88em;
  overflow: visible;
  white-space: pre;
  word-break: normal;
}
/* ── Charts ── */
.sdoc-chart {
  margin: 1.2em 0;
  padding: 16px;
  border-radius: var(--radius, 8px);
  background: var(--md-chart-bg, var(--md-block-bg, #F5F2EE));
  max-width: 100%;
  position: relative;
}
.sdoc-chart canvas { max-height: 400px; }
.sdoc-chart-error { outline: 2px dashed #ef4444; }

/* Chart menu */
.chart-menu-btn {
  position: absolute; top: 6px; right: 6px;
  background: var(--md-chart-bg, var(--md-block-bg, #F5F2EE));
  border: 1px solid var(--md-copy-btn-border, rgba(0,0,0,0.1));
  border-radius: 4px;
  padding: 3px 5px;
  cursor: pointer; opacity: 0.7;
  transition: opacity .15s;
  color: var(--md-chart-text, var(--text-3, #999));
  font-size: 12px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.chart-menu-btn:hover { opacity: 1; background: var(--md-copy-btn-hover, rgba(0,0,0,0.05)); }

.chart-menu {
  display: none; position: absolute; top: 36px; right: 8px;
  min-width: 160px; width: max-content; background: var(--bg-surface, #fff);
  border: 1px solid var(--border, #e0dcd7);
  border-radius: var(--radius, 8px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  padding: 6px 0; z-index: 10; font-size: 13px; color: var(--text, #333);
}
.chart-menu.open { display: block; }

.chart-menu-item {
  display: block; width: 100%; padding: 6px 14px;
  border: none; background: none; text-align: left;
  cursor: pointer; font-size: 13px; color: var(--text, #333);
}
.chart-menu-item:hover { background: var(--bg-hover, #f5f3f0); }

.chart-menu-sep { height: 1px; background: var(--border, #e0dcd7); margin: 4px 0; }

.chart-menu-toggle {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 14px; cursor: pointer; font-size: 13px; color: var(--text-2, #666);
}
.chart-menu-toggle:hover { background: var(--bg-hover, #f5f3f0); }
.chart-menu-toggle input { margin: 0; }

.chart-menu-types { display: flex; gap: 3px; padding: 4px 10px; flex-wrap: wrap; }
.chart-type-btn {
  padding: 3px 10px; border: 1px solid var(--border, #e0dcd7);
  background: none; border-radius: var(--radius-sm, 4px);
  font-size: 11px; cursor: pointer; color: var(--text-2, #666);
  white-space: nowrap;
}
.chart-type-btn:hover { background: var(--bg-hover, #f5f3f0); }
.chart-type-btn.active {
  background: var(--bg-input, #fff); color: var(--text, #333);
  border-color: var(--border-strong, #c0bbb5); box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.chart-menu-input {
  display: block; width: calc(100% - 28px); margin: 4px 14px;
  padding: 4px 8px; border: 1px solid var(--border, #e0dcd7);
  border-radius: var(--radius-sm, 4px); font-size: 12px;
  background: var(--bg-input, #fff); color: var(--text, #333);
}
.chart-menu-input:focus { outline: none; border-color: var(--accent, #3b82f6); }

:is(#_sd_rendered, #_sd_write) blockquote {
  border-left: var(--md-bq-border);
  font-size: var(--md-bq-size);
  color: var(--md-bq-color);
  padding: var(--md-bq-padding);
  margin: var(--md-bq-margin);
  background: var(--md-bq-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
}
:is(#_sd_rendered, #_sd_write) blockquote p { margin: 0; color: inherit; }
:is(#_sd_rendered, #_sd_write) ul, :is(#_sd_rendered, #_sd_write) ol {
  padding-left: var(--md-list-indent);
  margin: 0.5em 0 1.1em;
}
:is(#_sd_rendered, #_sd_write) li { margin-bottom: var(--md-list-spacing); color: var(--md-list-color); }
:is(#_sd_rendered, #_sd_write) li::marker { color: var(--md-list-color); }
:is(#_sd_rendered, #_sd_write) hr {
  border: none;
  border-top: 1px solid var(--md-hr-border);
  margin: 2em 0;
}
:is(#_sd_rendered, #_sd_write) table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.2em 0;
  font-size: 0.92em;
}
:is(#_sd_rendered, #_sd_write) th, :is(#_sd_rendered, #_sd_write) td {
  border: 1px solid var(--md-table-border);
  padding: 7px 12px;
  text-align: left;
}
:is(#_sd_rendered, #_sd_write) th {
  background: var(--md-table-header-bg);
  font-weight: 600;
  color: var(--text);
}
:is(#_sd_rendered, #_sd_write) tr:nth-child(even) td { background: var(--md-table-even-bg); }
:is(#_sd_rendered, #_sd_write) img { max-width: 100%; border-radius: var(--radius-md); }

/* ── File-info card (shown when front matter has `file:`) ─────────── */
/* Matches the dimensions and inner padding of #_sd_rendered so values line up
   exactly with the document text. No background, border, or shadow — reads
   as plain header text above the document. */
#_sd_sdocs-file-info[hidden] { display: none; }
#_sd_sdocs-file-info {
  /* Mirror the light-mode document defaults so card text matches body text
     even when no controls have fired. setStyleVar also mirrors any user
     overrides onto this element (see sdocs-state.js). */
  --md-color: #1C1917;
  --md-p-color: var(--md-color);
  --fic-muted: color-mix(in srgb, var(--md-p-color) 40%, transparent);
  --fic-hover: color-mix(in srgb, var(--md-p-color) 10%, transparent);

  max-width: 760px;
  margin: 0 auto;
  padding: 28px 48px 0;
  font-family: var(--font-ui);
  font-size: 12.5px;
  color: var(--fic-muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
#_sd_sdocs-file-info .fic-rows {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--md-hr-border);
}
#_sd_sdocs-file-info .fic-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 5px 0;
  line-height: 1.5;
  border-top: 1px solid color-mix(in srgb, var(--fic-text) 10%, transparent);
  cursor: pointer;
}
#_sd_sdocs-file-info .fic-row:hover .fic-copy { color: var(--md-p-color); }
#_sd_sdocs-file-info .fic-row:first-child { border-top: none; }
#_sd_sdocs-file-info .fic-label {
  color: var(--fic-muted);
  flex-shrink: 0;
  min-width: 58px;
  font-weight: 500;
}
#_sd_sdocs-file-info .fic-value {
  flex: 1;
  min-width: 0;
  color: var(--md-p-color);
  overflow-wrap: anywhere;
  word-break: break-word;
}
#_sd_sdocs-file-info .fic-local-tag {
  font-size: 11px;
  color: var(--fic-muted);
  flex-shrink: 0;
}
#_sd_sdocs-file-info .fic-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: transparent;
  border: none;
  color: var(--fic-muted);
  border-radius: var(--radius-sm);
  padding: 0;
  cursor: pointer;
  transition: background .12s, color .12s;
}
/* Icon shouldn't swallow pointer events; the button does. Keeps e.target
   as the button itself so delegated row click handlers behave consistently. */
#_sd_sdocs-file-info .fic-copy svg,
#_sd_sdocs-file-info .fic-copy svg * { pointer-events: none; }
#_sd_sdocs-file-info .fic-copy:hover {
  color: var(--md-p-color);
}
#_sd_sdocs-file-info .fic-privacy-note {
  margin-top: 4px;
  font-size: 11px;
  color: var(--fic-muted);
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}
#_sd_sdocs-file-info .fic-privacy-note[hidden] { display: none; }

/* Short URL row: fades + slides in after the Shorten button is clicked */
#_sd_sdocs-file-info .fic-row-short {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .3s cubic-bezier(.4,0,.2,1), transform .3s cubic-bezier(.4,0,.2,1);
}
#_sd_sdocs-file-info .fic-row-short.fic-row-short-enter {
  opacity: 0;
  transform: translateY(-4px);
}
#_sd_sdocs-file-info .fic-row-short .fic-value {
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, monospace);
  font-size: 12px;
}

/* Shorten action row: button + inline error */
#_sd_sdocs-file-info .fic-row-shorten {
  cursor: default;
}
#_sd_sdocs-file-info .fic-row-shorten:hover .fic-copy { color: var(--fic-muted); }
#_sd_sdocs-file-info .fic-shorten-button {
  background: transparent;
  border: none;
  color: var(--md-p-color);
  font: inherit;
  padding: 0;
  cursor: pointer;
  text-decoration: underline dotted;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--md-p-color) 45%, transparent);
  transition: text-decoration-color .12s, text-decoration-style .12s;
}
#_sd_sdocs-file-info .fic-shorten-button:hover:not(:disabled) {
  text-decoration-style: solid;
  text-decoration-color: var(--md-p-color);
}
#_sd_sdocs-file-info .fic-shorten-button:disabled {
  cursor: default;
  opacity: 0.6;
}
#_sd_sdocs-file-info .fic-shorten-button.fic-shorten-loading {
  opacity: 0.7;
}
#_sd_sdocs-file-info .fic-shorten-error {
  font-size: 11px;
  color: #b42318;
}
#_sd_sdocs-file-info .fic-shorten-error[hidden] { display: none; }

/* Intro row: shown before the short URL is generated */
#_sd_sdocs-file-info .fic-row-short-intro {
  cursor: default;
}
#_sd_sdocs-file-info .fic-short-intro-text {
  flex: 1;
  min-width: 0;
  color: var(--fic-muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}
#_sd_sdocs-file-info .fic-short-intro-learn {
  color: var(--fic-muted);
  text-decoration: underline;
  transition: color .12s;
}
#_sd_sdocs-file-info .fic-short-intro-learn:hover {
  color: var(--md-p-color);
}

/* Math (KaTeX) — placeholders fill with KaTeX output after sanitize.
   Display math can overflow on narrow viewports; allow horizontal scroll
   rather than clipping. Inline math shouldn't break mid-equation. */
#_sd_rendered .sdocs-math-display,
#_sd_write .sdocs-math-display {
  overflow-x: auto;
  overflow-y: hidden;
  margin: 1em 0;
  padding: 0.25em 0;
}
#_sd_rendered .sdocs-math-display .katex-display {
  margin: 0;
}
#_sd_rendered .sdocs-math-inline,
#_sd_write .sdocs-math-inline {
  white-space: nowrap;
}
/* Placeholders shown before KaTeX loads (or if CDN fails): show the raw
   LaTeX in a muted monospace so the reader isn't staring at a blank box. */
#_sd_rendered .sdocs-math-display:empty::before,
#_sd_rendered .sdocs-math-inline:empty::before {
  content: attr(data-tex);
  font-family: var(--md-code-font, monospace);
  color: var(--text-2, #888);
  font-size: 0.95em;
}