/* ============================================================
   PlumePHP Theme — custom.css
   Inspired by blog.birdor.com design system
   Light / Dark mode via [data-theme] on <html>
   ============================================================ */

/* ── 1. Font Face ─────────────────────────────────────────── */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter/Inter-roman.var.woff2') format('woff2');
}

/* ── 2. CSS Variables (Light Mode default) ─────────────────── */
:root {
  --plume-bg:        #fbfaf7;
  --plume-surface:   #ffffff;
  --plume-ink:       #252422;
  --plume-muted:     #6b6860;
  --plume-gold:         #8a6a24;
  --plume-gold-dark:    #6b5118;
  --plume-gold-soft:    #f5edd8;
  --plume-button-primary-fg: #ffffff;
  --plume-line:   #e8e5de;
  --plume-shadow: 0 2px 8px rgba(37, 36, 34, .08);
  --bg: var(--plume-bg);
  --fg: var(--plume-ink);
}

/* ── 3. Dark Mode ──────────────────────────────────────────── */
:root[data-theme="dark"] {
  --plume-bg:        #11110f;
  --plume-surface:   #191816;
  --plume-ink:       #f4f1e9;
  --plume-muted:     #9e9b93;
  --plume-gold:         #d1aa54;
  --plume-gold-dark:    #b8922e;
  --plume-gold-soft:    #2a2415;
  --plume-button-primary-fg: #11110f;
  --plume-line:   #2e2c28;
  --plume-shadow: 0 2px 8px rgba(0, 0, 0, .32);
  --bg: var(--plume-bg);
  --fg: var(--plume-ink);
}

/* ── 4. Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--plume-bg);
  color: var(--plume-ink);
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--plume-bg);
  color: var(--plume-ink);
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--plume-gold);
  text-decoration: none;
  transition: color .15s ease;
}

a:hover, a:focus { color: var(--plume-gold-dark); }

img { display: block; max-width: 100%; height: auto; }

/* ── 5. Navigation ─────────────────────────────────────────── */
.plume-site-header {
  background: var(--plume-surface);
  border-bottom: 1px solid var(--plume-line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.plume-nav { padding: 0 1.5rem; }

.plume-nav__inner {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1180px;
  min-height: 60px;
}

.plume-nav__brand {
  align-items: center;
  color: var(--plume-ink) !important;
  display: flex;
  flex-shrink: 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.2rem;
  font-weight: 500;
  gap: .5rem;
  text-decoration: none;
}

.plume-nav__brand img { border-radius: 4px; }
.plume-nav__brand svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  color: var(--plume-ink);
  transition: color .2s;
}
.plume-nav__brand-text { color: var(--plume-ink); }

.plume-nav__right {
  align-items: center;
  display: flex;
  gap: 1.5rem;
}

.plume-main-menu {
  align-items: center;
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.plume-main-menu__item a {
  color: var(--plume-muted) !important;
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .02em;
  transition: color .15s ease;
}

.plume-main-menu__item a:hover,
.plume-main-menu__item a:focus { color: var(--plume-ink) !important; }

.plume-header-actions {
  align-items: center;
  display: flex;
  gap: .5rem;
}

.plume-theme-toggle {
  align-items: center;
  background: transparent;
  border: 1px solid var(--plume-line);
  border-radius: 6px;
  color: var(--plume-muted);
  cursor: pointer;
  display: flex;
  justify-content: center;
  padding: .4rem;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}

.plume-theme-toggle:hover,
.plume-theme-toggle:focus {
  background: var(--plume-gold-soft);
  border-color: var(--plume-gold);
  color: var(--plume-gold);
}

/* ── 6. Footer ─────────────────────────────────────────────── */
.plume-site-footer {
  background: var(--plume-surface);
  border-top: 1px solid var(--plume-line);
  margin-top: auto;
  padding: 1.5rem;
}

.plume-site-footer__inner {
  align-items: center;
  display: grid;
  gap: 1rem;
  grid-template-columns: auto 1fr auto;
  margin: 0 auto;
  max-width: 1180px;
}

.plume-site-footer__copyright {
  color: var(--plume-muted) !important;
  font-size: .85rem;
}

.plume-site-footer__links {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  font-size: .82rem;
  gap: .5rem 1rem;
  justify-content: center;
}

.plume-site-footer__links a,
.plume-site-footer__links span { color: var(--plume-muted) !important; }

.plume-site-footer__links a:hover { color: var(--plume-ink) !important; }

.plume-site-footer__social {
  display: flex;
  gap: .75rem;
  justify-self: end;
}

.plume-social-link {
  align-items: center;
  color: var(--plume-muted) !important;
  display: flex;
  font-size: .82rem;
  gap: .35rem;
}

.plume-social-link:hover { color: var(--plume-ink) !important; }

/* ── 7. Shell / Layout ─────────────────────────────────────── */
.plume-blog-shell {
  color: var(--plume-ink);
  margin: 0 auto;
  max-width: 1180px;
  padding: clamp(2rem, 4vw, 4.25rem) 1.25rem 4rem;
}

/* ── 8. Buttons ────────────────────────────────────────────── */
.plume-button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  font-size: .82rem;
  font-weight: 700;
  gap: .45rem;
  justify-content: center;
  letter-spacing: .06em;
  line-height: 1;
  min-height: 44px;
  padding: 0 1.2rem;
  text-decoration: none;
  text-transform: uppercase;
  transition: background .18s ease, border-color .18s ease, box-shadow .18s ease, color .18s ease;
}

.plume-button--primary {
  background: var(--plume-gold);
  border-color: var(--plume-gold);
  color: var(--plume-button-primary-fg) !important;
}

.plume-button--primary:hover,
.plume-button--primary:focus {
  background: var(--plume-gold-dark);
  border-color: var(--plume-gold-dark);
  box-shadow: 0 4px 14px rgba(138, 106, 36, .2);
  color: var(--plume-button-primary-fg) !important;
}

.plume-button--secondary {
  background: transparent;
  border-color: var(--plume-gold);
  color: var(--plume-gold) !important;
}

.plume-button--secondary:hover,
.plume-button--secondary:focus {
  background: var(--plume-gold);
  color: #fff !important;
}

/* ── 9. Section Headings ───────────────────────────────────── */
.plume-section-heading { margin-bottom: 1.2rem; }

.plume-section-heading p {
  color: var(--plume-gold);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .4rem;
  text-transform: uppercase;
}

.plume-section-heading h2 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.05;
  margin: 0;
}

/* ── 10. Hero ──────────────────────────────────────────────── */
.plume-hero {
  display: grid;
  gap: clamp(2.4rem, 4.5vw, 4.5rem);
  grid-template-columns: minmax(320px, .78fr) minmax(0, 1.22fr);
  min-height: 560px;
  align-items: center;
}

.plume-hero__copy h1 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 500;
  line-height: .95;
  letter-spacing: 0;
  margin: 0 0 1.2rem;
}

.plume-hero__copy p {
  color: var(--plume-muted);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  line-height: 1.7;
  margin: 0;
  max-width: 36rem;
}

.plume-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

/* ── 11. Featured Slider ───────────────────────────────────── */
.plume-featured-shell { min-width: 0; }

.plume-featured__header {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.plume-featured__header .plume-section-heading { margin: 0; }

.plume-featured__controls {
  align-items: center;
  display: flex;
  gap: .45rem;
}

.plume-featured__controls button {
  appearance: none;
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  color: var(--plume-ink);
  cursor: pointer;
  font-size: 1.35rem;
  font-weight: 700;
  height: 2.35rem;
  line-height: 1;
  width: 2.35rem;
  transition: background .15s ease, border-color .15s ease;
}

.plume-featured__controls button:hover,
.plume-featured__controls button:focus {
  background: var(--plume-gold-soft);
  border-color: var(--plume-gold);
}

.plume-featured {
  display: grid;
  gap: 1rem;
  grid-auto-flow: column;
  grid-auto-columns: calc(50% - .5rem);
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-inline: contain;
  padding: .25rem .25rem 1.1rem;
  scroll-padding-inline: .25rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.plume-featured__item {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  box-shadow: var(--plume-shadow);
  min-height: 520px;
  scroll-snap-align: start;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.plume-featured__item:hover,
.plume-featured__item:focus-within {
  border-color: color-mix(in srgb, var(--plume-gold) 50%, var(--plume-line));
  box-shadow: var(--plume-shadow);
  transform: translateY(-2px);
}

.plume-featured__item a {
  box-sizing: border-box;
  color: inherit !important;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.1rem, 2vw, 1.6rem);
}

.plume-featured__count {
  color: var(--plume-gold);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .7rem;
  text-transform: uppercase;
}

.plume-featured h2 {
  color: var(--plume-ink);
  display: -webkit-box;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 500;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 8;
  line-height: 1.1;
  margin: 0;
  overflow: hidden;
}

.plume-featured p {
  color: var(--plume-muted);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-height: 1.65;
  margin: 1rem 0 1.2rem;
  overflow: hidden;
}

/* ── 12. Topic Band ────────────────────────────────────────── */
.plume-topic-band {
  border-top: 1px solid var(--plume-line);
  margin-top: clamp(2rem, 6vw, 5rem);
  padding-top: clamp(1.5rem, 4vw, 3rem);
}

.plume-topic-grid {
  display: grid;
  gap: .85rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.plume-topic {
  align-items: center;
  background: transparent;
  border-bottom: 1px solid var(--plume-line);
  color: var(--plume-ink) !important;
  display: flex;
  justify-content: space-between;
  min-height: 54px;
  padding: .65rem 0;
  transition: color .15s ease;
}

.plume-topic:hover { color: var(--plume-gold) !important; }
.plume-topic strong { color: var(--plume-gold); font-size: .9rem; }

/* ── 13. Content Grid ──────────────────────────────────────── */
.plume-content-grid {
  border-top: 1px solid var(--plume-line);
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
  margin-top: clamp(2rem, 6vw, 5rem);
  padding-top: clamp(1.5rem, 4vw, 3rem);
}

.plume-side-column {
  display: grid;
  gap: 1.2rem;
  position: sticky;
  top: 4.5rem;
}

/* ── 14. Article Cards ─────────────────────────────────────── */
.plume-card-list { display: grid; gap: 1rem; }

.plume-card {
  background: var(--plume-surface);
  border: 1px solid color-mix(in srgb, var(--plume-line) 70%, var(--plume-ink) 8%);
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(37, 36, 34, .04);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.plume-card:hover,
.plume-card:focus-within {
  border-color: color-mix(in srgb, var(--plume-gold) 50%, var(--plume-line));
  box-shadow: var(--plume-shadow);
  transform: translateY(-2px);
}

.plume-card__link {
  box-sizing: border-box;
  color: inherit !important;
  display: flex;
  flex-direction: column;
  gap: .65rem;
  padding: clamp(1rem, 2vw, 1.4rem);
}

.plume-card--list .plume-card__link,
.plume-card--standard .plume-card__link { min-height: 160px; }

.plume-card__category {
  color: var(--plume-gold);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0;
  text-transform: uppercase;
}

.plume-card__title {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.3rem, 2vw, 1.85rem);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.1;
  margin: 0;
}

.plume-card__desc { color: var(--plume-muted); line-height: 1.65; margin: 0; }

.plume-card__meta {
  align-items: center;
  border-top: 1px solid var(--plume-line);
  color: var(--plume-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: .82rem;
  gap: .7rem;
  margin-top: auto;
  padding-top: .85rem;
}

.plume-card__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .15rem; }

.plume-card__tags span {
  border: 1px solid var(--plume-line);
  border-radius: 3px;
  color: var(--plume-muted);
  font-size: .72rem;
  font-weight: 600;
  padding: .2rem .4rem;
}

/* ── 15. Tags Panel ────────────────────────────────────────── */
.plume-tags-panel {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  padding: 1.2rem;
}

.plume-tags-panel .plume-section-heading h2 { font-size: 1.35rem; }

.plume-tag-cloud { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .75rem; }

.plume-tag-cloud a {
  border: 1px solid var(--plume-line);
  border-radius: 3px;
  color: var(--plume-ink) !important;
  font-size: .84rem;
  padding: .35rem .55rem;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}

.plume-tag-cloud a:hover,
.plume-tag-cloud a:focus {
  background: var(--plume-gold-soft);
  border-color: var(--plume-gold);
  color: var(--plume-gold-dark) !important;
}

.plume-tag-cloud a span { color: var(--plume-gold); font-size: .75rem; }

/* ── 16. Archive ───────────────────────────────────────────── */
.plume-archive {
  border-top: 1px solid var(--plume-line);
  margin-top: clamp(2rem, 6vw, 5rem);
  padding-top: clamp(1.5rem, 4vw, 3rem);
}

.plume-archive__list {
  display: grid;
  gap: .8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.plume-archive__year { border-top: 1px solid var(--plume-line); padding: 1rem 0; }

.plume-archive__year summary {
  color: var(--plume-ink);
  cursor: pointer;
  display: flex;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.5rem;
  font-weight: 500;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

.plume-archive__year summary::-webkit-details-marker { display: none; }

.plume-archive__year summary span {
  color: var(--plume-muted);
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-size: .9rem;
  font-weight: 400;
}

.plume-archive__months { display: grid; gap: 1rem; margin-top: 1rem; }

.plume-archive__month { border-top: 1px solid var(--plume-line); padding-top: .85rem; }

.plume-archive__month h3 {
  align-items: center;
  color: var(--plume-ink);
  display: flex;
  font-size: .9rem;
  justify-content: space-between;
  letter-spacing: .04em;
  margin: 0 0 .65rem;
  text-transform: uppercase;
}

.plume-archive__month h3 span { color: var(--plume-gold); font-size: .82rem; }

.plume-archive__year ol { list-style: none; margin: 0; padding: 0; }

.plume-archive__year li {
  display: grid;
  gap: .75rem;
  grid-template-columns: 4rem minmax(0, 1fr);
  margin: .5rem 0;
}

.plume-archive__year time { color: var(--plume-muted); font-size: .84rem; }

.plume-archive__year a { color: var(--plume-ink) !important; font-size: .9rem; }

.plume-archive__year a:hover { color: var(--plume-gold) !important; }

/* ── 17. List Page / Page Kicker ───────────────────────────── */
.plume-list-page { max-width: 980px; }

.plume-page-kicker {
  border-bottom: 1px solid var(--plume-line);
  margin-bottom: 1.4rem;
  padding-bottom: 1.4rem;
}

.plume-page-kicker p {
  color: var(--plume-gold);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .5rem;
  text-transform: uppercase;
}

.plume-page-kicker h1 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 500;
  line-height: .95;
  margin: 0 0 .75rem;
}

.plume-page-kicker__desc {
  color: var(--plume-muted);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.7;
  max-width: 44rem;
}

/* ── 18. Filter Bar ────────────────────────────────────────── */
.plume-filter-bar { display: flex; flex-wrap: wrap; gap: .55rem; margin: 0 0 1.4rem; }

.plume-filter-bar a {
  border: 1px solid var(--plume-line);
  border-radius: 3px;
  color: var(--plume-ink) !important;
  font-size: .86rem;
  padding: .4rem .6rem;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}

.plume-filter-bar a:hover,
.plume-filter-bar a:focus,
.plume-filter-bar a.is-active {
  background: var(--plume-gold-soft);
  border-color: var(--plume-gold);
  color: var(--plume-gold-dark) !important;
}

.plume-filter-bar a.is-active { font-weight: 700; }

.plume-card-list--wide .plume-card__link { min-height: 200px; }

/* ── 19. Term Grid ─────────────────────────────────────────── */
.plume-term-grid {
  display: grid;
  gap: .85rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1.5rem;
}

.plume-term-card {
  align-items: center;
  background: transparent;
  border-bottom: 1px solid var(--plume-line);
  color: var(--plume-ink) !important;
  display: flex;
  justify-content: space-between;
  min-height: 54px;
  padding: .65rem 0;
  transition: color .15s ease;
}

.plume-term-card:hover { color: var(--plume-gold) !important; }
.plume-term-card strong { color: var(--plume-gold); }

/* ── 20. Article Single Page ───────────────────────────────── */
.plume-article-shell { max-width: 1180px; }

.plume-article__header {
  border-bottom: 1px solid var(--plume-line);
  margin: 0 auto clamp(2rem, 5vw, 4rem);
  max-width: 900px;
  padding-bottom: clamp(1.5rem, 4vw, 3rem);
  text-align: center;
}

.plume-breadcrumbs {
  align-items: center;
  color: var(--plume-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: .86rem;
  gap: .45rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.plume-breadcrumbs a { color: var(--plume-muted) !important; }
.plume-breadcrumbs a:hover { color: var(--plume-ink) !important; }

.plume-article__category {
  color: var(--plume-gold);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .8rem;
  text-transform: uppercase;
}

.plume-article__header h1 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(2.4rem, 6vw, 5.5rem);
  font-weight: 500;
  letter-spacing: 0;
  line-height: .96;
  margin: 0;
}

.plume-article__dek {
  color: var(--plume-muted);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  line-height: 1.7;
  margin: 1.2rem auto 0;
  max-width: 720px;
}

.plume-article__meta {
  align-items: center;
  color: var(--plume-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: .9rem;
  gap: .5rem 1rem;
  justify-content: center;
  margin-top: 1.2rem;
}

.plume-article__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 720px) 280px;
  justify-content: center;
}

/* ── 21. Article Content (Markdown) ────────────────────────── */
.plume-article__content {
  color: var(--fg);
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-size: 1.06rem;
  line-height: 1.82;
  min-width: 0;
}

.plume-article__content > :first-child { margin-top: 0; }

.plume-article__content h1,
.plume-article__content h2,
.plume-article__content h3,
.plume-article__content h4,
.plume-article__content h5,
.plume-article__content h6 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.15;
}

.plume-article__content h2 {
  border-top: 1px solid var(--plume-line);
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  margin-top: 3rem;
  padding-top: 2rem;
}

.plume-article__content h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.85rem);
  margin-top: 2.2rem;
}

.plume-article__content h4 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  margin-top: 1.8rem;
}

.plume-article__content p,
.plume-article__content ul,
.plume-article__content ol { color: var(--fg); }

.plume-article__content a {
  color: var(--plume-gold);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.plume-article__content a:hover { color: var(--plume-gold-dark); }

.plume-article__content blockquote {
  border-left: 3px solid var(--plume-gold);
  color: var(--plume-muted);
  font-style: italic;
  margin: 1.5rem 0;
  padding: .75rem 1.25rem;
}

.plume-article__content code {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 3px;
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
  font-size: .88em;
  padding: .15em .35em;
}

.plume-article__content pre {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  margin: 1.5rem 0;
  overflow-x: auto;
  padding: 1.25rem;
}

.plume-article__content pre code {
  background: none;
  border: none;
  font-size: .9rem;
  padding: 0;
}

.plume-article__content table {
  border-collapse: collapse;
  display: block;
  font-size: .95rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  width: 100%;
}

.plume-article__content th {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  color: var(--plume-ink);
  font-weight: 700;
  padding: .6rem .85rem;
  text-align: left;
}

.plume-article__content td {
  border: 1px solid var(--plume-line);
  padding: .55rem .85rem;
}

.plume-article__content img,
.plume-article__content figure {
  border-radius: 4px;
  box-shadow: var(--plume-shadow);
  margin: 1.5rem auto;
}

.plume-article__content hr {
  display: none;
}

/* ── 22. Article Tags Footer ───────────────────────────────── */
.plume-article__tags {
  border-top: 1px solid var(--plume-line);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 3rem;
  padding-top: 1rem;
}

.plume-article__tags a {
  border: 1px solid var(--plume-line);
  border-radius: 3px;
  color: var(--plume-ink) !important;
  font-size: .86rem;
  padding: .4rem .6rem;
  text-decoration: none;
  transition: background .15s ease, border-color .15s ease;
}

.plume-article__tags a:hover {
  background: var(--plume-gold-soft);
  border-color: var(--plume-gold);
  color: var(--plume-gold-dark) !important;
}

/* ── 23. Article CTA ───────────────────────────────────────── */
.plume-article-cta {
  align-items: center;
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-top: 2rem;
  padding: clamp(1rem, 2vw, 1.35rem);
}

.plume-article-cta__eyebrow {
  color: var(--plume-gold) !important;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .45rem !important;
  text-transform: uppercase;
}

.plume-article-cta h2 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.3rem, 2.5vw, 1.85rem);
  font-weight: 500;
  line-height: 1.1;
  margin: 0;
}

.plume-article-cta p { color: var(--plume-muted); line-height: 1.6; margin: .5rem 0 0; }

.plume-article-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  justify-content: flex-end;
}

/* ── 24. Article Aside ─────────────────────────────────────── */
.plume-article__aside {
  align-self: start;
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 4.5rem;
}

.plume-article__toc {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  padding: 1rem;
}

.plume-article__toc h2 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.2rem;
  font-weight: 500;
  margin: 0 0 .8rem;
}

.plume-article__toc #TableOfContents { margin: 0; padding: 0; }

.plume-article__toc #TableOfContents ul {
  list-style: none;
  margin: 0;
  padding: 0 0 0 .75rem;
}

.plume-article__toc #TableOfContents > ul { padding: 0; }

.plume-article__toc a {
  color: var(--plume-muted) !important;
  display: block;
  font-size: .88rem;
  line-height: 1.5;
  padding: .2rem 0;
  transition: color .15s ease;
}

.plume-article__toc a:hover { color: var(--plume-gold) !important; }

.plume-context-panel {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  padding: 1rem;
}

.plume-context-panel h2 {
  color: var(--plume-ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0 0 .75rem;
}

.plume-context-list { list-style: none; margin: 0; padding: 0; }

.plume-context-list li {
  border-bottom: 1px solid var(--plume-line);
  display: grid;
  gap: .2rem;
  padding: .6rem 0;
}

.plume-context-list li:last-child { border-bottom: none; }

.plume-context-list a {
  color: var(--plume-ink) !important;
  font-size: .9rem;
  font-weight: 500;
  line-height: 1.4;
}

.plume-context-list a:hover { color: var(--plume-gold) !important; }

.plume-context-list span { color: var(--plume-muted); font-size: .78rem; }

.plume-comments { margin-top: 3rem; }

/* ── 25. Syntax Highlighting ───────────────────────────────── */
.highlight {
  background: var(--plume-surface);
  border: 1px solid var(--plume-line);
  border-radius: 4px;
  margin: 1.5rem 0;
  overflow-x: auto;
}

.highlight pre {
  background: none;
  border: none;
  margin: 0;
  padding: 1.25rem;
}

/* ── 26. Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .plume-hero { grid-template-columns: 1fr; min-height: auto; }
  .plume-content-grid { grid-template-columns: 1fr; }
  .plume-side-column { position: static; }
  .plume-topic-grid, .plume-term-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .plume-archive__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .plume-featured { grid-auto-columns: calc(60% - .5rem); }
  .plume-article__grid { grid-template-columns: 1fr; }
  .plume-article__aside { position: static; }
  .plume-article-cta { grid-template-columns: 1fr; }
  .plume-article-cta__actions { justify-content: flex-start; }
  .plume-site-footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .plume-nav { padding-left: 1rem; padding-right: 1rem; }
  .plume-nav__inner { flex-wrap: wrap; min-height: 52px; }
  .plume-nav__right { flex: 0 0 100%; order: 3; padding-bottom: .5rem; }
  .plume-main-menu { gap: 1rem; }
  .plume-hero__copy h1 { font-size: 2.8rem; }
  .plume-featured { grid-auto-columns: minmax(82vw, 1fr); }
  .plume-featured__item { min-height: 460px; }
  .plume-topic-grid, .plume-term-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plume-archive__list { grid-template-columns: 1fr; }
  .plume-blog-shell { padding-left: 1rem; padding-right: 1rem; }
  .plume-site-footer__inner { grid-template-columns: 1fr; justify-items: start; }
  .plume-site-footer__social { justify-self: start; }
  .plume-site-footer__links { justify-content: flex-start; }
}

/* ── 27. Accessibility ─────────────────────────────────────── */
.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

/* ── 28. Nested Links (Markdown content) ───────────────────── */
.nested-links a {
  color: var(--plume-gold);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.nested-links a:hover { color: var(--plume-gold-dark); }
.nested-copy-line-height { line-height: 1.82; }

/* ── 29. Prevent mermaid code block rendering ──────────────── */
pre code.language-mermaid { background: none !important; color: inherit !important; }
