/* Catalog introduction and two-column catalog workspace. */
.examples-page { padding-bottom: 72px; }
.examples-intro { margin-bottom: 28px; }
.examples-intro h1 { margin: 0 0 10px; }
.examples-intro > p { color: var(--muted); font-size: 14px; }
.examples-intro a { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.examples-intro .icon { width: 13px; height: 13px; }
.examples-workspace { display: grid; grid-template-columns: 235px minmax(0, 1fr); gap: 38px; align-items: start; }
/* Category navigation for the example catalog. */
.examples-sidebar { position: sticky; top: 24px; }
.examples-sidebar > .portal-eyebrow { margin: 16px 12px; }
.examples-sidebar nav { display: grid; gap: 5px; }
.examples-sidebar nav a { display: flex; gap: 10px; align-items: center; justify-content: space-between; padding: 11px 12px; border-radius: 8px; font-size: 13px; font-weight: 600; }
.examples-sidebar nav a:hover, .examples-sidebar nav a:focus-visible { color: var(--accent); background: var(--accent-soft); }
.examples-count { display: inline-flex; justify-content: center; align-items: center; min-width: 27px; height: 27px; border-radius: 8px; color: var(--accent); background: var(--accent-soft); font: 12px var(--mono); }
/* Search progressively enhances the server-rendered, two-level list. */
.examples-search { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; margin-bottom: 28px; }
.examples-search label { font-size: 12px; font-weight: 650; }
.examples-search input { grid-row: 2; grid-column: 1 / -1; width: 100%; padding: 12px 16px; color: var(--text); background: var(--card); border: 1px solid var(--line-strong); border-radius: 9px; font-size: 14px; }
.examples-search input::placeholder { color: var(--muted); opacity: 1; }
.examples-search-status { font-size: 12px; color: var(--muted); }
.examples-empty { padding: 32px; border: 1px dashed var(--line-strong); border-radius: 12px; }
/* Course rows echo the lab catalog: diagram tile, title, summary, and arrow. */
.example-group { scroll-margin-top: 24px; margin-bottom: 36px; }
.example-group-heading { padding-bottom: 14px; }
.example-group-heading h2 { margin: 0; }
.example-list { padding: 0; margin: 0; list-style: none; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--card); }
.example-list-item + .example-list-item { border-top: 1px solid var(--line); }
.example-row { display: flex; align-items: center; gap: 16px; padding: 16px; transition: background .2s; }
.example-row:hover { background: var(--surface); }
.example-tile { width: 64px; min-height: 68px; flex-shrink: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; border-radius: 7px; background: var(--accent-soft); color: var(--accent); font: 10px var(--mono); }
.example-tile .icon { width: 25px; height: 25px; }
.example-row-copy { display: grid; gap: 7px; }
.example-row-title { font-size: 16px; line-height: 1.35; font-weight: 700; }
.example-row-description { font-size: 13px; line-height: 1.7; color: var(--muted); }
.example-row-arrow { margin-left: auto; color: var(--accent); flex-shrink: 0; }
/* Lesson articles keep reading width comfortable and code horizontally scrollable. */
.lesson-content { min-width: 0; border: 1px solid var(--line); border-radius: 14px; padding: 36px 40px; background: var(--card); }
.lesson-heading { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.lesson-heading-top { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; }
.lesson-heading-top .portal-eyebrow { margin: 0; }
.lesson-github-link { margin-left: auto; flex-shrink: 0; color: var(--accent); font-size: 13px; }
.lesson-github-link .icon { width: 14px; height: 14px; }
.lesson-heading h1 { margin: 12px 0 18px; }
.lesson-heading > p:not(.portal-eyebrow) { color: var(--muted); font-size: 15px; }
.lesson-prose { font-size: 15px; line-height: 1.85; overflow-wrap: anywhere; }
.lesson-prose h2 { margin: 32px 0 16px; scroll-margin-top: 24px; }
.lesson-prose p, .lesson-prose ul, .lesson-prose ol { margin: 16px 0; }
.lesson-prose li { margin-bottom: 9px; }
.lesson-prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.lesson-prose code { font: .86em var(--mono); }
.lesson-prose :not(pre) > code { padding: 2px 4px; border-radius: 4px; background: var(--surface); }
.lesson-prose pre { padding: 20px; overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 9px; line-height: 1.75; }
.lesson-prose blockquote { margin: 20px 0; padding: 12px 20px; border-left: 3px solid var(--accent); background: var(--accent-soft); color: var(--muted); }
.lesson-prose blockquote p { margin: 0; }
.lesson-source-version { margin-top: 16px; }
.lesson-source-version a { text-decoration: underline; }
.lesson-return { display: inline-block; color: var(--accent); margin-top: 26px; font-size: 13px; font-weight: 650; }
/* Example pages embed their imported README directly below the authored overview. */
.embedded-readme { margin-top: 36px; padding-top: 32px; border-top: 1px solid var(--line); }
.embedded-readme .readme-prose > h1:first-child { display: none; }
.embedded-readme > .lesson-source-version { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
/* Imported READMEs reuse lesson typography with room for upstream tables and images. */
.readme-content { max-width: 1000px; margin: 0 auto; }
.readme-toolbar { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; padding-bottom: 22px; border-bottom: 1px solid var(--line); color: var(--accent); font-size: 13px; }
.readme-toolbar .icon { width: 14px; height: 14px; }
.readme-prose h1 { margin: 30px 0 20px; font-size: clamp(26px, 4vw, 38px); line-height: 1.25; }
.readme-prose h3, .readme-prose h4 { margin-top: 28px; }
.readme-prose img { display: block; max-width: 100%; height: auto; margin: 24px auto; }
.readme-prose table { display: block; overflow-x: auto; border-collapse: collapse; margin: 24px 0; }
.readme-prose th, .readme-prose td { padding: 10px 14px; border: 1px solid var(--line); text-align: left; }
.readme-prose th { background: var(--surface); }
.readme-content > .lesson-source-version { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
/* Compact layouts retain all navigation and prevent narrow-screen overflow. */
@media (max-width: 960px) {
  .examples-workspace { grid-template-columns: 1fr; gap: 26px; }
  .examples-sidebar { position: static; }
  .examples-sidebar nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .is-portal .examples-page h1 { font-size: 30px; }
  .example-row { padding: 16px; gap: 14px; align-items: flex-start; }
  .example-tile { width: 48px; min-height: 62px; }
  .example-row-arrow { display: none; }
  .lesson-content { padding: 24px 20px; }
}