@import url('./lesson-content-tabs.css?v=53fTzQdAFWPAK9y63T26DiYLmx-NbhPxMSGA3uvMdb8');
@import url('./lesson-mentor.css?v=yriN7p9k1F-SLorD-RJmBcTfc1jY38cQpe2nsRypKIw');
@import url('./lesson-reading.css?v=kzzm05ISsT9k-ldJ36rqZNdzi7FiLxZyg4NUArhj5HQ');

.lesson-markdown-content {
  color: var(--reader-text);
}

.lesson-markdown-content[data-tiptap-editor-readonly] {
  -webkit-user-select: text;
  user-select: text;
  -webkit-touch-callout: default;
}

.lesson-markdown-content[data-tiptap-editor-readonly]::selection,
.lesson-markdown-content[data-tiptap-editor-readonly] *::selection {
  background-color: var(--text-selection-background, Highlight);
  color: var(--text-selection-color, HighlightText);
}

.lesson-markdown-content[data-tiptap-editor-readonly] :is(
  h1,
  h2,
  h3,
  h4,
  h5,
  h6,
  p,
  li,
  dt,
  dd,
  blockquote,
  figcaption,
  th,
  td,
  pre,
  code
) {
  cursor: text;
}

.lesson-page-shell .lesson-markdown-content {
  --lesson-reader-measure: var(--reader-measure, 68ch);
  display: flow-root;
  width: 100%;
  max-width: var(--reader-layout-width, 70rem);
  margin-inline: auto;
}

.lesson-page-shell .lesson-panel:is(
  [data-panel="reading"],
  [data-panel="blocks"],
  [data-panel="summary"]
) .lesson-markdown-content {
  --lesson-reader-measure: 100%;
  max-width: none;
  margin-inline: 0;
}

.lesson-page-shell .lesson-markdown-content > :is(p, ul, ol, blockquote, .direct-speech, .lesson-quote, dl) {
  max-inline-size: var(--lesson-reader-measure);
}

.lesson-page-shell .lesson-markdown-content > details > :is(p, ul, ol, blockquote, dl) {
  max-inline-size: var(--lesson-reader-measure);
}

.lesson-markdown-content :is(ul, ol) > li {
  margin-block: 0;
}

.lesson-markdown-content :is(ul, ol) > li + li {
  margin-block-start: .45em;
}

.lesson-markdown-content :is(ul, ol) > li > p {
  margin-block: 0;
}

.lesson-markdown-content :is(ul, ol) > li > p + p {
  margin-block-start: .7em;
}

.lesson-markdown-content :is(ul, ol) > li > :is(ul, ol) {
  margin-block: .45em 0;
}

.lesson-page-shell .lesson-markdown-content > p:has(> img:only-child) {
  max-inline-size: none;
}

.lesson-markdown-content > :first-child,
.lesson-markdown-content :where(.lesson-reading__step:first-of-type > .lesson-reading__content) > :first-child {
  margin-top: 0;
}

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

.lesson-markdown-content :is(h1, h2, h3) {
  max-width: none;
  text-align: center;
  text-wrap: pretty;
  font-family: var(--site-font-display);
  line-height: var(--reader-heading-line-height, 1.25);
  letter-spacing: -.015em;
  color: var(--reader-heading);
  font-weight: 700;
}

.lesson-markdown-content h1 {
  margin: 40px 0 18px;
  font-size: clamp(var(--font-size-700), 2.25vw, var(--font-size-800));
}

.lesson-markdown-content h2 {
  margin: 38px 0 17px;
  font-size: clamp(var(--font-size-700), 2.1vw, var(--font-size-800));
}

.lesson-markdown-content h3 {
  margin: 36px 0 16px;
  font-size: clamp(var(--font-size-600), 1.75vw, var(--font-size-700));
  font-weight: 600;
  letter-spacing: -.01em;
}

.lesson-markdown-content > :is(h1, h2, h3):first-child,
.lesson-markdown-content :where(.lesson-reading__step:first-of-type > .lesson-reading__content) > :is(h1, h2, h3):first-child {
  margin-top: 8px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.lesson-markdown-content h3 + p {
  margin-top: 8px;
}

.lesson-markdown-content hr {
  width: min(96px, 28%);
  height: 1px;
  margin: 34px auto;
  border: 0;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, var(--article-link, #336fda) 55%, var(--white, #fff) 45%),
    transparent
  );
  opacity: .9;
}

.lesson-markdown-content a {
  color: var(--article-link, #336fda);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--article-link, #336fda) 34%, transparent);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
  border-radius: 5px;
  padding: 0 .12em;
  background:
    linear-gradient(
      180deg,
      transparent 58%,
      color-mix(in srgb, var(--article-link, #336fda) 12%, transparent) 0
    );
  overflow-wrap: anywhere;
  transition:
    color .16s ease,
    background-color .16s ease,
    text-decoration-color .16s ease,
    box-shadow .16s ease;
}

.lesson-markdown-content a:visited {
  color: var(--article-link, #336fda);
}

.lesson-markdown-content a:hover,
.lesson-markdown-content a:focus-visible {
  color: var(--article-link-hover);
  text-decoration-color: currentColor;
  background-color: color-mix(in srgb, var(--article-link, #336fda) 10%, transparent);
}

.lesson-markdown-content a:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--article-link, #336fda) 42%, transparent);
  outline-offset: 3px;
}

.lesson-markdown-content .direct-speech {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 22px;
  padding: 8px 0 8px 18px;
  border-left: 2px solid var(--line-strong, rgba(17, 24, 39, .18));
  color: var(--muted-2, #64748b);
  font-style: italic;
  font-size: var(--font-size-300);
  line-height: 1.85;
}

.lesson-markdown-content .direct-speech::before {
  content: "";
  display: block;
  width: 42px;
  min-width: 42px;
  height: 42px;
  background: url("/images/lesson-blocks/speech-bubble.png") center / contain no-repeat;
  background-image: image-set(
    url("/images/lesson-blocks/speech-bubble.png?preset=thumb-96") 1x,
    url("/images/lesson-blocks/speech-bubble.png?preset=thumb-192") 2x
  );
  flex-shrink: 0;
}

.lesson-markdown-content .direct-speech.direct-speech--no-icon {
  gap: 0;
}

.lesson-markdown-content .direct-speech.direct-speech--no-icon::before {
  content: none;
}

.lesson-markdown-content .direct-speech p:first-child {
  margin-top: 0;
}

.lesson-markdown-content .direct-speech p:last-child,
.lesson-markdown-content blockquote p:last-child,
.lesson-markdown-content .lesson-quote p:last-child {
  margin-bottom: 0;
}

.lesson-markdown-content :is(.direct-speech, blockquote, .lesson-quote) p {
  color: inherit;
}

.lesson-markdown-content .lesson-quote {
  margin: 22px 0 26px;
  padding: 18px 0 0 20px;
  border-left: 3px solid color-mix(in srgb, var(--formula, #f3b94e) 68%, transparent);
}

.lesson-markdown-content .lesson-quote__text {
  margin: 0;
  color: var(--quote-text, var(--article-panel-text, #334155));
  font-size: var(--font-size-500);
  line-height: 1.72;
  font-style: italic;
  letter-spacing: -.01em;
}

.lesson-markdown-content .lesson-quote__author {
  margin-top: 12px;
  color: var(--muted-2, #64748b);
  font-size: var(--font-size-100);
  line-height: 1.5;
  font-weight: 700;
}

.lesson-markdown-content .lesson-quote__text p {
  margin: 0;
}

.lesson-markdown-content blockquote {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 5px solid color-mix(in srgb, var(--article-link) 52%, var(--panel));
  border-radius: 0;
  background: color-mix(in srgb, var(--article-link) 9%, var(--panel));
  color: var(--reader-text);
}

.lesson-markdown-content blockquote.direct-speech {
  border: 1px solid var(--line-strong);
  border-left: 4px solid color-mix(in srgb, var(--article-link) 62%, var(--panel-2));
  border-radius: 0;
  background: var(--panel-2);
  color: var(--reader-text);
}

.lesson-markdown-content pre,
.dev-pane pre {
  margin: 18px 0 24px;
  padding: 18px 20px;
  overflow: auto;
  border-radius: 0;
  background: var(--code-bg);
  border: 1px solid rgba(255, 255, 255, .08);
  font-size: var(--lesson-code-font-size, var(--font-size-200));
  line-height: 1.72;
  color: var(--code-text);
  white-space: pre-wrap;
}

.lesson-markdown-content > :is(pre, .lesson-code-block) {
  clear: both;
  inline-size: 100%;
  max-inline-size: 100%;
  box-sizing: border-box;
}

.lesson-markdown-content code {
  display: inline;
  padding: .08em .4em;
  border-radius: 7px;
  background: var(--inline-code-bg, rgba(17, 24, 39, .07));
  color: var(--inline-code, #7c5b00);
  font-family: var(--site-font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
  font-size: max(var(--font-size-min), var(--lesson-inline-code-size, .88em));
  font-style: normal;
  line-height: 1.25;
  vertical-align: .03em;
  white-space: nowrap;
}

.lesson-markdown-content pre code {
  display: inline;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
  white-space: inherit;
}

.lesson-markdown-content blockquote code,
.lesson-markdown-content .direct-speech code,
.lesson-markdown-content .lesson-quote__text code {
  display: inline;
  padding: 0;
  border-radius: 0;
  line-height: inherit;
  vertical-align: baseline;
  background: transparent;
  color: var(--inline-code, #7c5b00);
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--inline-code, #7c5b00) 34%, transparent);
}

.lesson-markdown-content .lesson-code-block {
  margin: 18px 0 24px;
  border-radius: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: none;
  background: var(--code-bg);
}

.lesson-markdown-content .lesson-code-block pre {
  margin: 0;
  padding: 14px 18px;
  border: 0;
  border-radius: 0;
  background: var(--code-bg);
  color: var(--code-text);
  font-family: var(--site-font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
  font-size: var(--lesson-code-font-size, var(--font-size-200));
  line-height: 1.74;
  white-space: pre;
}

.lesson-markdown-content .lesson-code-block pre code {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
}

.lesson-markdown-content .lesson-terminal {
  border-color: var(--border-default);
  border-radius: 8px;
}

.lesson-terminal__header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-default);
  background: var(--surface-2);
  color: var(--text-secondary);
  font-family: var(--site-font-body);
  font-size: var(--font-size-100);
  line-height: 1.5;
}

summary.lesson-terminal__header { cursor: pointer; list-style: none; }
summary.lesson-terminal__header::-webkit-details-marker { display: none; }
summary.lesson-terminal__header::before {
  content: '';
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
  flex-shrink: 0;
}
.lesson-code-block[open] > summary.lesson-terminal__header::before { transform: rotate(45deg); }
.lesson-code-block:not([open]) > summary.lesson-terminal__header { border-bottom: 0; }
summary.lesson-terminal__header:hover { background: var(--surface-hover); }
summary.lesson-terminal__header:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }

.lesson-terminal__header > button {
  margin-left: auto;
  min-height: 32px;
  padding: 4px 8px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  cursor: pointer;
}

.lesson-terminal__header > button:hover { background: var(--surface-hover); }
.lesson-terminal__header > button:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.lesson-terminal__copy-status { font-size: var(--font-size-100); }

.lesson-markdown-content dl {
  position: relative;
  margin: 24px 0;
  padding: 14px 16px 14px 18px;
  border: 1px solid var(--line-soft, rgba(17, 24, 39, .12));
  border-radius: 0;
  background: linear-gradient(180deg, var(--white-05, rgba(255, 255, 255, .78)), var(--white-025, rgba(255, 255, 255, .58)));
  overflow: hidden;
}

.lesson-markdown-content dl::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--definition, #4c8dff);
}

.lesson-markdown-content dt {
  margin: 0 0 6px;
  color: var(--article-strong-text, #18202b);
  font-size: var(--font-size-200);
  font-weight: var(--site-weight-bold, 800);
  line-height: 1.25;
}

.lesson-markdown-content dd {
  margin: 0;
  color: var(--article-panel-text, #334155);
  font-size: var(--font-size-200);
  line-height: 1.64;
}

.lesson-markdown-content:where(:not(.ProseMirror)) table {
  --lesson-table-accent: var(--site-accent, var(--reader-link));
  --lesson-table-surface: var(--reader-surface-raised);
  --lesson-table-row-alt: color-mix(in srgb, var(--lesson-table-surface) 96%, var(--lesson-table-accent) 4%);
  --lesson-table-header: color-mix(in srgb, var(--lesson-table-surface) 84%, var(--lesson-table-accent) 16%);
  --lesson-table-grid: color-mix(in srgb, var(--reader-border) 82%, var(--reader-muted) 18%);
  --lesson-table-header-grid: color-mix(in srgb, var(--reader-border) 68%, var(--lesson-table-accent) 32%);
  --lesson-table-code-bg: color-mix(in srgb, var(--lesson-table-surface) 88%, var(--lesson-table-accent) 12%);
  --lesson-table-code-border: color-mix(in srgb, var(--reader-border) 76%, var(--lesson-table-accent) 24%);
  display: table;
  width: 100%;
  min-width: 720px;
  max-width: none;
  margin: 24px auto;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--lesson-table-grid);
  border-radius: 10px;
  overflow: hidden;
  background: var(--lesson-table-surface);
  color: var(--reader-text);
  font-size: var(--font-size-300);
  line-height: 1.45;
  box-shadow: none;
}

.lesson-table-shell {
  --lesson-table-accent: var(--site-accent, var(--reader-link));
  --lesson-table-accent-soft: color-mix(in srgb, var(--reader-surface-raised) 88%, var(--lesson-table-accent) 12%);
  --lesson-table-accent-border: color-mix(in srgb, var(--reader-border) 72%, var(--lesson-table-accent) 28%);
  --lesson-table-accent-focus: color-mix(in srgb, var(--lesson-table-accent) 38%, transparent);
  width: 100%;
  max-width: 100%;
  margin: 24px 0;
}

.lesson-table__actions {
  display: flex;
  justify-content: flex-end;
  margin: 0 0 12px;
}

.lesson-table__export {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 6px;
  border: 1px solid var(--lesson-table-accent-border);
  border-radius: 10px;
  background: var(--reader-surface-raised);
  color: var(--reader-heading);
  font: inherit;
  font-size: var(--font-size-100);
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition:
    border-color .16s ease,
    background-color .16s ease,
    color .16s ease,
    transform .16s ease;
}

.lesson-table__export i {
  display: inline-grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--lesson-table-accent-border) 82%, transparent);
  border-radius: 6px;
  background: var(--lesson-table-accent-soft);
  color: var(--lesson-table-accent);
  font-size: var(--font-size-200);
  line-height: 1;
}

.lesson-table__export:hover {
  border-color: var(--lesson-table-accent);
  background: color-mix(in srgb, var(--lesson-table-accent) 8%, var(--reader-surface-raised));
  color: var(--reader-link-hover);
  transform: translateY(-1px);
}

.lesson-table__export:focus-visible,
.lesson-table__scroller:focus-visible {
  outline: 2px solid var(--lesson-table-accent-focus);
  outline-offset: 2px;
}

.lesson-table__scroller {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: auto;
}

.lesson-table__scroller > table {
  margin-top: 0;
  margin-bottom: 0;
}

.lesson-table__print-frame {
  position: fixed;
  width: 1px;
  height: 1px;
  inset: auto 0 0 auto;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.lesson-markdown-content:where(:not(.ProseMirror)) th,
.lesson-markdown-content:where(:not(.ProseMirror)) td {
  padding: 17px 20px;
  border: 0;
  border-block-start: 1px solid var(--lesson-table-grid);
  border-inline-start: 1px solid var(--lesson-table-grid);
  text-align: left;
  vertical-align: middle;
  overflow-wrap: normal;
  word-break: normal;
  background: var(--lesson-table-surface);
  color: var(--reader-text);
}

.lesson-markdown-content:where(:not(.ProseMirror)) th {
  border-inline-start-color: var(--lesson-table-header-grid);
  background: var(--lesson-table-header);
  color: var(--reader-heading);
  font-size: var(--font-size-200);
  font-weight: 700;
  text-align: center !important; /* guardrail-allow-important: override alignment stored inline in lesson table headers. */
}

.lesson-markdown-content:where(:not(.ProseMirror)) tbody tr:nth-child(even) > td {
  background: var(--lesson-table-row-alt);
}

.lesson-markdown-content:where(:not(.ProseMirror)) td:last-child {
  text-align: center !important; /* guardrail-allow-important: override legacy inline alignment in the final column. */
}

.lesson-markdown-content:where(:not(.ProseMirror)) :is(th, td) code {
  border: 1px solid var(--lesson-table-code-border);
  background: var(--lesson-table-code-bg);
  color: var(--lesson-table-accent);
  white-space: nowrap;
}

.lesson-markdown-content:where(:not(.ProseMirror)) table > thead > tr:first-child > *,
.lesson-markdown-content:where(:not(.ProseMirror)) table > tbody:first-child > tr:first-child > * {
  border-block-start: 0;
}

.lesson-markdown-content:where(:not(.ProseMirror)) table tr > *:first-child {
  border-inline-start: 0;
}

.lesson-markdown-content:where(:not(.ProseMirror)) table > thead + tbody > tr:first-child > * {
  border-block-start-color: var(--lesson-table-header-grid);
}

.lesson-markdown-content img.lesson-media__image {
  --lesson-media-inline-gap: 24px;
  --lesson-media-block-gap: 20px;
  --lesson-media-max-width: 720px;
  display: block;
  box-sizing: border-box;
  max-inline-size: min(100%, var(--lesson-media-max-width));
  block-size: auto;
  margin: 22px auto 28px;
  border-radius: 18px;
  box-shadow: none;
}

.lesson-markdown-content img.lesson-media__image--left {
  --lesson-media-max-width: 420px;
  float: left;
  clear: left;
  max-inline-size: min(42%, var(--lesson-media-max-width));
  margin: 6px var(--lesson-media-inline-gap) var(--lesson-media-block-gap) 0;
}

.lesson-markdown-content img.lesson-media__image--right {
  --lesson-media-max-width: 420px;
  float: right;
  clear: right;
  max-inline-size: min(42%, var(--lesson-media-max-width));
  margin: 6px 0 var(--lesson-media-block-gap) var(--lesson-media-inline-gap);
}

.lesson-markdown-content img.lesson-media__image--center {
  float: none;
  margin-inline: auto;
}

.lesson-markdown-content img.lesson-media__image--align-left {
    float: none;
    margin-inline: 0 auto;
}

.lesson-markdown-content img.lesson-media__image--align-right {
    float: none;
    margin-inline: auto 0;
}

.lesson-markdown-content img.lesson-media__image--surface {
  padding: 12px;
  border: 1px solid var(--reader-border, var(--line-soft));
  background: var(--reader-illustration-surface, transparent);
  box-shadow: none;
}

.lesson-markdown-content img.lesson-media__image--xs { --lesson-media-max-width: 260px; }
.lesson-markdown-content img.lesson-media__image--sm { --lesson-media-max-width: 320px; }
.lesson-markdown-content img.lesson-media__image--md { --lesson-media-max-width: 420px; }
.lesson-markdown-content img.lesson-media__image--lg,
.lesson-markdown-content img.lesson-media__image--wide { --lesson-media-max-width: 720px; }

/* An explicit author width takes precedence over the automatic size presets. */
.lesson-markdown-content img.lesson-media__image:where([width]) {
  max-inline-size: 100%;
}

@media (max-width: 600px) {
  .lesson-markdown-content img.lesson-media__image--left,
  .lesson-markdown-content img.lesson-media__image--right {
    --lesson-media-inline-gap: 12px;
    --lesson-media-block-gap: 12px;
    max-inline-size: min(36%, 160px);
  }

  .lesson-markdown-content img.lesson-media__image:where([width]) {
    float: none;
    clear: both;
    max-inline-size: 100%;
    margin-inline: auto;
  }
}

.lesson-markdown-content img.lesson-content-image--failed {
  display: none;
}

.lesson-markdown-content .lesson-terminal-prompt code {
  color: #d1d5db;
}

.lesson-markdown-content .terminal-prompt__user,
.lesson-markdown-content .terminal-prompt__host {
  color: #2ee66b;
  font-weight: var(--site-weight-bold, 800);
}

.lesson-markdown-content .terminal-prompt__path {
  color: #4aa3ff;
  font-weight: 700;
}

.lesson-markdown-content .terminal-prompt__symbol {
  color: #f8fafc;
  font-weight: var(--site-weight-bold, 800);
}

.lesson-markdown-content .terminal-output__dir {
  color: #2ee66b;
  font-weight: 700;
}

.lesson-markdown-content .terminal-output__file {
  color: #d1d5db;
}