/* ==========================================================================
   Blog + Courses
   All colors reference brand tokens from colors_and_type.css
   (--bg-cool, --navy-700/900, --teal-600, --coral-600/700, --gray-200, etc.)
   ========================================================================== */
.blog-page { background: var(--color-bg); color: var(--color-ink); }
.nav-link.active { color: var(--color-accent); }

/* Section index pages (blog index, all-posts, courses index) */
.blog-index-wrap { max-width: var(--container, 1120px); margin: 0 auto; padding: var(--space-7) var(--space-5) var(--space-9); }
.blog-index-head { max-width: 720px; margin-bottom: var(--space-5); }
.blog-index-head .eyebrow { font-family: var(--font-body); font-size: var(--fs-micro); font-weight: 700; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-accent); margin: 0 0 var(--space-3); }
.blog-index-head .eyebrow a { color: inherit; text-decoration: none; }
.blog-index-head .eyebrow a:hover { text-decoration: underline; }
.blog-index-head h1 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 48; font-size: clamp(2rem, 4.4vw, 2.75rem); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); color: var(--navy-900); margin: 0 0 var(--space-3); }
.blog-index-head .lede { font-size: var(--fs-body); line-height: var(--lh-loose); color: var(--color-ink-muted); margin: 0; max-width: 620px; }
.blog-index-head .lede a { color: var(--color-accent); }

.section-eyebrow { font-family: var(--font-body); font-size: var(--fs-caption); font-weight: 700; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-ink-muted); margin: 0 0 var(--space-5); }

/* Unified toolbar (search + filter chips) on /blog/ index */
.blog-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: center;
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-6);
}
.blog-toolbar .index-search { margin: 0; max-width: 360px; }
.blog-toolbar .filter-bar { margin: 0; }
.blog-toolbar .filter-label { display: none; }
@media (max-width: 800px) {
  .blog-toolbar {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .blog-toolbar .index-search { max-width: none; }
}

/* Live search bar on /blog/ and /courses/ */
.index-search { position: relative; max-width: 480px; margin: 0 0 var(--space-5); }
.index-search-label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.index-search-input {
  width: 100%;
  font: 400 15px/1.4 var(--font-body);
  color: var(--navy-700);
  background: var(--white);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 12px 40px 12px 40px;
  transition: border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard);
}
.index-search-input::placeholder { color: var(--color-ink-soft); }
.index-search-input:focus-visible {
  outline: none;
  border-color: var(--teal-600);
  box-shadow: var(--shadow-focus);
}
.index-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--color-ink-soft);
  pointer-events: none;
}
.index-search-clear {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--color-ink-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 18px;
  line-height: 1;
}
.index-search-clear:hover { color: var(--navy-700); background: var(--bg-cool); }
.index-search-clear:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.index-search.has-value .index-search-clear { display: inline-flex; }

/* Topic filter chips on /blog/ */
.filter-bar { display: flex; gap: var(--space-4); align-items: flex-start; margin-bottom: var(--space-6); flex-wrap: wrap; }
.filter-label { font-family: var(--font-body); font-size: var(--fs-caption); font-weight: 700; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-ink-muted); padding-top: 10px; flex: none; }
.filter-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.filter-chip { font: 500 13.5px/1 var(--font-body); padding: 8px 14px; border-radius: var(--radius-pill); background: var(--white); border: 1px solid var(--color-border); color: var(--color-ink); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard); }
.filter-chip:hover { border-color: var(--color-accent); }
.filter-chip.active { background: var(--navy-700); color: var(--white); border-color: var(--navy-700); }
.filter-chip .chip-count { font-size: 12px; opacity: 0.7; }
.filter-chip.active .chip-count { opacity: 0.85; }
.empty-state { text-align: center; padding: var(--space-7) 0; color: var(--color-ink-muted); font: 500 16px/1.5 var(--font-body); }

/* Topic chip (small label) — used everywhere */
.topic-chip { display: inline-block; padding: 4px 10px; border-radius: var(--radius-pill); background: var(--teal-100); color: var(--color-accent-hover); font: 700 11px/1 var(--font-body); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; text-decoration: none; }
a.topic-chip:hover { background: rgba(45,137,144,0.18); }

/* Index card grid */
.blog-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-6); }
.blog-card { display: flex; flex-direction: column; padding: var(--space-6); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-xs); transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard); text-decoration: none; color: inherit; }
.blog-card[hidden] { display: none; }
.blog-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--color-border-strong); }
.blog-card .card-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; font: 500 12.5px/1 var(--font-body); color: var(--color-ink-soft); margin-bottom: var(--space-3); }
.blog-card .card-meta .draft-pill { display: inline-block; padding: 3px 8px; border-radius: var(--radius-pill); background: var(--coral-100); color: var(--coral-700); font-size: 11px; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; font-weight: 700; }
.blog-card h2 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 32; font-size: 20px; line-height: var(--lh-snug); color: var(--navy-900); margin: 0 0 var(--space-3); letter-spacing: var(--tracking-tight); }
.blog-card p { font: 400 15px/1.55 var(--font-body); color: var(--color-ink-muted); margin: 0 0 var(--space-4); }
.blog-card .card-cta { margin-top: auto; font: 600 13.5px/1 var(--font-body); color: var(--color-accent); }

/* Page-based pagination (top + bottom) */
.blog-pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px;
}
.blog-pager[hidden] { display: none; }
.blog-pager--top { margin-bottom: var(--space-5); }
.blog-pager--bottom { margin-top: var(--space-7); }
.blog-pager-btn {
  font: 500 13.5px/1 var(--font-body);
  padding: 8px 14px;
  min-width: 36px;
  background: var(--white);
  color: var(--navy-700);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard);
}
.blog-pager-btn:hover:not(:disabled) { border-color: var(--color-accent); color: var(--color-accent); }
.blog-pager-btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.blog-pager-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.blog-pager-btn[aria-current="page"] {
  background: var(--navy-700);
  color: var(--white);
  border-color: var(--navy-700);
  cursor: default;
}
.blog-pager-btn[aria-current="page"]:hover { color: var(--white); border-color: var(--navy-700); }
.blog-pager-gap {
  padding: 0 6px;
  color: var(--color-ink-soft);
  font: 500 13.5px/1 var(--font-body);
}
.blog-pager-count {
  text-align: center;
  font: 500 13px/1 var(--font-body);
  color: var(--color-ink-muted);
  margin: var(--space-3) 0 0;
}
.blog-pager-count[hidden] { display: none; }

/* ==========================================================================
   Reading layout: 2-column with sticky sidebar
   ========================================================================== */
.reading-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 64px; max-width: var(--container, 1120px); margin: 0 auto; padding: var(--space-7) var(--space-6) var(--space-10); }
.reading-main { min-width: 0; max-width: 720px; }
.reading-aside { position: relative; }
.reading-aside > * + * { margin-top: var(--space-4); }

@media (min-width: 960px) {
  .reading-aside { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 110px); overflow-y: auto; padding-right: 4px; }
  .reading-aside::-webkit-scrollbar { width: 6px; }
  .reading-aside::-webkit-scrollbar-thumb { background: rgba(48,69,92,0.18); border-radius: 3px; }
}

.aside-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 20px 22px; }
.aside-card h4 { font: 700 11px/1 var(--font-body); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-ink-soft); margin: 0 0 14px; }
.aside-meta { display: grid; grid-template-columns: 80px 1fr; gap: 10px 16px; margin: 0; font: 500 13.5px/1.45 var(--font-body); }
.aside-meta dt { color: var(--color-ink-soft); }
.aside-meta dd { color: var(--color-ink); margin: 0; }
.aside-meta dd a { color: inherit; text-decoration: none; }

.aside-toc ul { list-style: none; padding: 0; margin: 0; }
.aside-toc li { margin: 0; }
.aside-toc a { display: block; padding: 8px 0; border-left: 2px solid transparent; padding-left: 14px; margin-left: -14px; font: 500 13.5px/1.45 var(--font-body); color: var(--color-ink); text-decoration: none; transition: color var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard); }
.aside-toc a:hover { color: var(--color-accent); border-left-color: var(--color-accent); }

.aside-share .share-row { display: flex; flex-direction: column; gap: 8px; }
.aside-share a { font: 500 13.5px/1 var(--font-body); color: var(--color-ink); text-decoration: none; padding: 8px 12px; border-radius: var(--radius-md); border: 1px solid var(--color-border); display: inline-block; transition: border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard); }
.aside-share a:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* ==========================================================================
   Article + lesson typography (.prose)
   ========================================================================== */
.back-link { font: 500 14px/1 var(--font-body); margin: 0 0 var(--space-5); }
.back-link a, a.back-link { color: var(--color-accent); text-decoration: none; }
.back-link a:hover, a.back-link:hover { text-decoration: underline; }

.article-head { margin-bottom: var(--space-7); padding-bottom: var(--space-6); border-bottom: 1px solid var(--color-border); }
.article-head .topic-line { margin: 0 0 var(--space-4); }
.article-head h1 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 48; font-size: clamp(1.875rem, 4vw, 2.625rem); line-height: 1.15; letter-spacing: var(--tracking-tight); color: var(--navy-900); margin: 0 0 var(--space-4); }
.article-meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; font: 500 14px/1 var(--font-body); color: var(--color-ink-soft); margin: 0; }
.article-meta .author, .article-meta .course-name { color: var(--color-ink); font-weight: 600; }
.article-meta .sep { opacity: 0.4; }

/* Body prose */
.prose { font: 400 18px/1.7 var(--font-body); color: var(--color-ink); }
.prose > * { max-width: 100%; }
.prose p { margin: 0 0 1.15em; }
.prose p:first-of-type { font-size: 1.05em; }
/* H2 = LMS-style section header: visible horizontal divider on top, accent
   eyebrow label, then the title. First H2 has no divider above it. */
.prose h2 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 32; font-size: 1.625rem; line-height: var(--lh-snug); color: var(--navy-900); margin: 3em 0 0.6em; padding-top: 2.4em; border-top: 1px solid var(--gray-400); letter-spacing: var(--tracking-tight); scroll-margin-top: 100px; clear: both; }
.prose h2:first-of-type { margin-top: 0.4em; padding-top: 0; border-top: none; }
.prose h2[data-eyebrow]::before { content: attr(data-eyebrow); display: block; font-family: var(--font-body); font-weight: 700; font-size: 11px; line-height: 1; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-accent); margin-bottom: 14px; }
/* Color-code section eyebrow accents by kind so videos/reflection/projects feel distinct */
.prose h2[data-section="watch"]::before { color: var(--coral-600); }
.prose h2[data-section="practice"]::before,
.prose h2[data-section="project"]::before { color: var(--coral-700); }
.prose h2[data-section="reflect"]::before,
.prose h2[data-section="review"]::before { color: var(--navy-500); }
.prose h2[data-section="assessment"]::before { color: var(--coral-600); }

.prose h3 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 24; font-size: 1.3rem; line-height: var(--lh-snug); color: var(--navy-900); margin: 1.8em 0 0.5em; scroll-margin-top: 100px; }
.prose h4 { font: 600 1.05rem/1.35 var(--font-body); color: var(--navy-900); margin: 1.4em 0 0.5em; }
.prose a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--color-accent-hover); }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1.2em; }
.prose li { margin: 0.35em 0; }
.prose hr { border: none; border-top: 1px solid var(--color-border); margin: 2.4em auto; max-width: 80px; }

/* Images: cap at 420px, left-aligned to text column. Add .wide for full bleed
   or .center to override default left-alignment. Squarespace exports use bare
   <img> tags, so size is controlled here directly. */
.prose img { display: block; max-width: min(420px, 100%); height: auto; margin: 1.6em 0; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.prose img.wide, .prose figure.wide img { max-width: 100%; }
.prose img.center, .prose figure.center img { margin-left: auto; margin-right: auto; }
.prose figure { margin: 1.6em 0; max-width: 420px; }
.prose figure.wide { max-width: 100%; }
.prose figure.center { margin-left: auto; margin-right: auto; }
.prose figure img { margin: 0; }
.prose figcaption { font: 400 14px/1.5 var(--font-body); color: var(--color-ink-soft); margin-top: 10px; }
.prose iframe { max-width: 100%; border-radius: var(--radius-lg); margin: 1.6em 0; }
.prose video { max-width: 100%; height: auto; border-radius: var(--radius-lg); margin: 1.6em 0; }

/* Pull quote */
.prose blockquote { margin: 1.8em 0; padding: 18px 26px; border-left: 4px solid var(--color-accent); background: var(--teal-100); color: var(--navy-900); font-family: var(--font-display); font-weight: 500; font-size: 1.1rem; line-height: 1.55; border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.prose blockquote p:last-child { margin-bottom: 0; }

/* Code */
.prose code { font: 500 0.92em/1.4 var(--font-mono); background: rgba(48,69,92,0.08); padding: 2px 6px; border-radius: var(--radius-sm); color: var(--navy-900); }
.prose pre { background: var(--navy-900); color: var(--color-on-dark-ink); padding: 18px 22px; border-radius: var(--radius-lg); overflow-x: auto; margin: 1.6em 0; font: 500 14px/1.55 var(--font-mono); }
.prose pre code { background: transparent; padding: 0; color: inherit; }

/* Tables */
.prose table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 16px; }
.prose th, .prose td { border-bottom: 1px solid var(--color-border); padding: 10px 12px; text-align: left; vertical-align: top; }
.prose th { font-weight: 600; color: var(--navy-900); }

/* Squarespace-specific markup that comes through the export */
.prose .sqs-html-content { font: inherit; color: inherit; }
.prose .sqs-block-content { white-space: normal; }

/* Lesson pages
   - Default images float left so text wraps around them and they sit
     within the body rather than as orphan blocks at section boundaries.
   - Videos and iframes always span the full main column at 16:9.
   - Use class="wide" or class="center" on an image to opt out of float. */
.lesson-page .prose > img,
.lesson-page .prose p > img,
.lesson-page .prose > figure { float: left; max-width: min(300px, 45%); margin: 0.4em 1.6em 0.8em 0; }
.lesson-page .prose > figure img { float: none; margin: 0; max-width: 100%; box-shadow: none; }
.lesson-page .prose > img.wide,
.lesson-page .prose > figure.wide { float: none; display: block; max-width: 100%; margin: 1.6em 0; }
.lesson-page .prose > img.center,
.lesson-page .prose > figure.center { float: none; display: block; margin: 1.6em auto; max-width: min(540px, 100%); }
.lesson-page .prose iframe,
.lesson-page .prose video,
.lesson-page .prose .sqs-block-video,
.lesson-page .prose .sqs-video-wrapper { display: block; width: 100%; max-width: 100%; aspect-ratio: 16 / 9; height: auto; margin: 1.8em 0; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); float: none; clear: both; }
.lesson-page .prose .sqs-block-video iframe,
.lesson-page .prose .sqs-video-wrapper iframe { width: 100%; height: 100%; aspect-ratio: auto; margin: 0; box-shadow: none; }
/* Keep h2/h3/hr/blockquote/pre/table from sliding next to a floated image */
.lesson-page .prose h2,
.lesson-page .prose h3,
.lesson-page .prose hr,
.lesson-page .prose blockquote,
.lesson-page .prose pre,
.lesson-page .prose table { clear: both; }

/* Footer nav + related */
.article-footer-nav { margin-top: var(--space-7); padding-top: var(--space-6); border-top: 1px solid var(--color-border); }

.related-section { margin-top: var(--space-9); padding-top: var(--space-6); border-top: 1px solid var(--color-border); }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--space-4); }
.related-card { display: flex; flex-direction: column; gap: 10px; padding: 18px 20px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); text-decoration: none; color: inherit; transition: transform var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard); }
.related-card:hover { transform: translateY(-1px); border-color: var(--color-accent); }
.related-card h3 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 24; font-size: 16px; line-height: 1.35; color: var(--navy-900); margin: 0; letter-spacing: var(--tracking-tight); }
.related-card p { font: 400 13.5px/1.5 var(--font-body); color: var(--color-ink-muted); margin: 0; }

.draft-banner { padding: 14px 18px; margin-bottom: var(--space-5); background: var(--coral-100); border: 1px solid var(--coral-500); border-radius: var(--radius-md); color: var(--coral-700); font: 500 14px/1.4 var(--font-body); }

/* ==========================================================================
   Lesson page (extends reading-layout)
   ========================================================================== */
.lesson-context-bar { position: sticky; top: 64px; z-index: 5; background: rgba(230,236,240,0.92); backdrop-filter: saturate(140%) blur(8px); -webkit-backdrop-filter: saturate(140%) blur(8px); border-bottom: 1px solid var(--color-border); }
.lesson-context-inner { max-width: var(--container-wide, 1320px); margin: 0 auto; padding: 12px var(--space-6); display: flex; align-items: center; gap: var(--space-5); }
.lesson-context-inner .course-link { font: 600 13.5px/1 var(--font-body); color: var(--navy-900); text-decoration: none; flex: none; }
.lesson-context-inner .course-link:hover { color: var(--color-accent); }
.lesson-progress { flex: 1; display: flex; align-items: center; gap: 14px; min-width: 0; }
.lesson-progress-text { font: 500 12.5px/1 var(--font-body); color: var(--color-ink-soft); letter-spacing: var(--tracking-wide); flex: none; }
.progress-bar { flex: 1; height: 4px; background: var(--gray-200); border-radius: 2px; overflow: hidden; max-width: 240px; }
.progress-fill { height: 100%; background: var(--color-accent); border-radius: 2px; transition: width 0.3s; }

/* Top action buttons inside the sticky lesson bar */
.lesson-actions { display: flex; gap: 8px; flex: none; align-items: center; }
.lesson-action { font: 600 13px/1 var(--font-body); padding: 9px 14px; border-radius: var(--radius-md); text-decoration: none; transition: background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard); }
.lesson-action.prev { color: var(--color-ink); border: 1px solid var(--color-border-strong); background: var(--white); }
.lesson-action.prev:hover { color: var(--color-accent); border-color: var(--color-accent); }
.lesson-action.prev.disabled { opacity: 0.4; pointer-events: none; }
.lesson-action.next { color: var(--white); background: var(--navy-700); border: 1px solid var(--navy-700); }
.lesson-action.next:hover { background: var(--navy-900); border-color: var(--navy-900); }
.lesson-action.next.finish { background: var(--color-accent); border-color: var(--color-accent); }
.lesson-action.next.finish:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); }

/* Lesson layout: outline on the LEFT (Teachable-style), wider main column for big video */
.lesson-layout { grid-template-columns: 280px minmax(0, 1fr); max-width: var(--container-wide, 1320px); gap: 48px; padding: var(--space-5) var(--space-6) var(--space-10); }
.lesson-page .reading-main { max-width: 920px; }

/* Lesson sidebar nav (full course outline) */
.aside-course-nav .course-nav-list { list-style: none; padding: 0; margin: 0; max-height: calc(100vh - 200px); overflow-y: auto; }
.aside-course-nav .course-nav-item { margin: 0; }
.course-nav-link { display: flex; gap: 12px; padding: 9px 12px; border-radius: var(--radius-md); text-decoration: none; color: var(--color-ink); font: 500 13.5px/1.4 var(--font-body); transition: background var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard); }
a.course-nav-link:hover { background: var(--teal-100); color: var(--color-accent-hover); }
.course-nav-num { color: var(--color-ink-soft); font-weight: 600; flex: none; min-width: 22px; }
.course-nav-title { flex: 1; min-width: 0; }
.course-nav-item.current .course-nav-link { background: var(--navy-700); color: var(--white); }
.course-nav-item.current .course-nav-num { color: rgba(255,255,255,0.7); }

/* Lesson nav cards (prev/next) */
.lesson-nav { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-top: var(--space-7); padding-top: var(--space-6); border-top: 1px solid var(--color-border); }
.lesson-nav-link { display: flex; flex-direction: column; gap: 6px; padding: 18px 22px; border: 1px solid var(--color-border); border-radius: var(--radius-md); text-decoration: none; color: var(--navy-900); background: var(--color-surface); transition: border-color var(--dur-fast) var(--ease-standard), transform var(--dur-fast) var(--ease-standard); }
.lesson-nav-link:hover { border-color: var(--color-accent); transform: translateY(-1px); }
.lesson-nav-link.next { text-align: right; align-items: flex-end; }
.lesson-nav-link.disabled { background: transparent; border: 1px dashed var(--gray-400); }
.lesson-nav-link.finish { background: linear-gradient(135deg, var(--navy-900), var(--color-accent-hover)); color: var(--white); border-color: transparent; }
.lesson-nav-link.finish .lesson-nav-dir { color: rgba(255,255,255,0.85); }
.lesson-nav-dir { font: 700 11px/1 var(--font-body); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-accent); }
.lesson-nav-title { font: 500 15px/1.4 var(--font-body); }

/* ==========================================================================
   Course detail page
   ========================================================================== */
.course-detail-wrap { max-width: 880px; margin: 0 auto; padding: var(--space-9) var(--space-5) var(--space-10); }
.course-detail-head { margin-bottom: var(--space-7); }
.course-detail-head .eyebrow a { color: var(--color-accent); text-decoration: none; }
.course-subject { font: 700 11px/1 var(--font-body); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-ink-muted); margin: var(--space-4) 0 var(--space-3); }
.course-detail-head h1 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 48; font-size: clamp(2rem, 5vw, 2.875rem); line-height: 1.1; letter-spacing: var(--tracking-tight); color: var(--navy-900); margin: 0 0 var(--space-4); }
.course-detail-head .lede { font-size: var(--fs-body-lg); line-height: var(--lh-loose); color: var(--color-ink-muted); margin: 0; }

.lesson-list-section { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); }
.lesson-list { list-style: none; padding: 0; margin: 0; }
.lesson-list li { border-bottom: 1px solid var(--color-border); }
.lesson-list li:last-child { border-bottom: none; }
.lesson-row { display: flex; align-items: center; gap: 18px; padding: var(--space-4) 4px; text-decoration: none; color: var(--navy-900); transition: padding var(--dur-fast) var(--ease-standard); }
.lesson-row:hover { padding-left: 12px; color: var(--color-accent); }
.lesson-num { font: 600 14px/1 var(--font-body); color: var(--color-ink-soft); flex: none; min-width: 28px; }
.lesson-row:hover .lesson-num { color: inherit; }
.lesson-title { font: 500 16.5px/1.4 var(--font-body); flex: 1; }
.lesson-row .draft-pill { padding: 3px 8px; border-radius: var(--radius-pill); background: var(--coral-100); color: var(--coral-700); font-size: 11px; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; font-weight: 700; }

/* ==========================================================================
   Course catalog
   ========================================================================== */
.course-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-5); }
.course-card { display: flex; flex-direction: column; padding: var(--space-6); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); text-decoration: none; color: inherit; transition: transform var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard); }
.course-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.course-card-subject { font: 700 11px/1 var(--font-body); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--color-accent); margin-bottom: var(--space-3); }
.course-card h3 { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 24; font-size: 1.15rem; line-height: var(--lh-snug); color: var(--navy-900); margin: 0 0 var(--space-3); letter-spacing: var(--tracking-tight); }
.course-card-meta { font: 500 14px/1 var(--font-body); color: var(--color-ink-soft); margin: 0 0 var(--space-4); }
.course-card .card-cta { margin-top: auto; font: 600 13.5px/1 var(--font-body); color: var(--color-accent); }

.subject-block { margin-bottom: var(--space-7); }
.subject-title { font-family: var(--font-display); font-weight: 600; font-variation-settings: 'wght' 600, 'SOFT' var(--fraunces-soft), 'opsz' 32; font-size: 1.5rem; line-height: var(--lh-snug); color: var(--navy-900); margin: 0 0 var(--space-4); letter-spacing: var(--tracking-tight); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .lesson-layout { grid-template-columns: 1fr; gap: 32px; padding: var(--space-5) var(--space-5) var(--space-9); }
  .lesson-page .reading-aside { order: 2; }
  .lesson-page .reading-main { order: 1; max-width: none; }
  .aside-course-nav .course-nav-list { max-height: 320px; }
}

@media (max-width: 960px) {
  .reading-layout { grid-template-columns: 1fr; gap: 40px; padding: var(--space-7) var(--space-5) var(--space-9); }
  .reading-aside { order: 2; }
  .reading-main { order: 1; max-width: none; }
}

@media (max-width: 720px) {
  .blog-index-wrap, .course-detail-wrap { padding: var(--space-8) var(--space-5) var(--space-9); }
  .prose { font-size: 17px; }
  .prose img, .prose figure { max-width: 100%; }
  .lesson-nav { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; gap: var(--space-3); }
  .filter-label { padding-top: 0; }
  .lesson-context-inner { padding: 10px var(--space-5); gap: var(--space-3); flex-wrap: wrap; }
  .lesson-progress { order: 3; flex-basis: 100%; }
  .progress-bar { max-width: none; }
  .lesson-actions { margin-left: auto; }
  .lesson-action { padding: 8px 10px; font-size: 12px; }
}