/* ============================================================================
   Community Page Styles — Machine Learning Systems
   Covers: community hub, events, partners pages
   ============================================================================ */

:root {
  --cm-accent: #A51C30;
  --cm-accent-hover: #8a1728;
  --cm-text: #1a1a2e;
  --cm-text-muted: #6b7280;
  --cm-bg: #ffffff;
  --cm-card-bg: #f9fafb;
  --cm-border: #e5e7eb;
}

.quarto-dark,
[data-bs-theme="dark"] {
  --cm-text: #e5e7eb;
  --cm-text-muted: #9ca3af;
  --cm-bg: #0f1117;
  --cm-card-bg: #1a1d2e;
  --cm-border: #374151;
  --cm-accent: #f2788a;  /* the light-mode crimson is under 3:1 on the dark surface */
  --cm-accent-hover: #f7a1ae;
}

/* Filled buttons keep the deep crimson: white text on the lightened accent is under 3:1. */
.quarto-dark .cta-btn-primary,
.quarto-dark .crs-exit--primary {
  background: #A51C30;
  color: #ffffff;
}
.quarto-dark .cta-btn-primary:hover,
.quarto-dark .crs-exit--primary:hover {
  background: #C42A40;
}

/* ── Override textbook accent-bar headers for site pages ── */
main h2, article h2, #quarto-content h2,
main h3, article h3, #quarto-content h3,
main h4, article h4, #quarto-content h4 {
  border-left: none;
  border-bottom: none;
  padding-left: 0;
  padding-bottom: 0;
}

/* Dark mode explicit overrides — ensure community text is visible */
.quarto-dark .community-opening .opening-lead {
  color: #e5e7eb !important;
  background: none !important;
}
.quarto-dark .community-opening .opening-body {
  color: #9ca3af !important;
}
.quarto-dark .community-opening .opening-principle {
  color: var(--cm-accent) !important;
}
.quarto-dark .outreach-card h3,
.quarto-dark .channel-card h3,
.quarto-dark .event-info h3 {
  color: #e5e7eb !important;
}
.quarto-dark .outreach-card p,
.quarto-dark .channel-card p,
.quarto-dark .event-info p {
  color: #9ca3af !important;
}
.quarto-dark .spotlight .spotlight-quote,
[data-bs-theme="dark"] .spotlight .spotlight-quote,
.quarto-dark blockquote.spotlight-quote,
[data-bs-theme="dark"] blockquote.spotlight-quote {
  color: #e5e7eb !important;
}
.quarto-dark .spotlight .spotlight-attribution,
[data-bs-theme="dark"] .spotlight .spotlight-attribution {
  color: #9ca3af !important;
}

/* ── Opening Hero ───────────────────────────────────────────────────────── */
.community-opening {
  max-width: 640px;
  margin: 0 auto 2rem;
  text-align: center;
  padding: 2rem 1.5rem 2.5rem;
  border-bottom: 1px solid var(--cm-border);
}
.community-opening p {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--cm-text-muted);
  margin-bottom: 0;
}
.community-opening .opening-lead {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cm-text);
  margin-bottom: 1rem;
  line-height: 1.35;
}
.community-opening .opening-body {
  margin-bottom: 1.25rem;
}
.community-opening .opening-principle {
  font-size: 1.05rem;
  font-weight: 600;
  font-style: italic;
  color: var(--cm-accent);
  margin: 0;
}

/* ── Opening Hero (sub-pages: events, partners) ─────────────────────────── */
.opening-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cm-accent);
  margin-bottom: 1rem;
}
.opening-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--cm-text);
  margin-bottom: 1.5rem;
}

/* ── Network Map ─────────────────────────────────────────────────────── */
.network-map-wrap {
  margin: 2rem 0 1.5rem;
  text-align: center;
}
.network-map-wrap img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--cm-border);
}
.map-caption {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: var(--cm-text-muted);
  margin-top: 0.75rem;
  font-style: italic;
}

/* ── Community Spotlight Grid ────────────────────────────────────────── */
.spotlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 0 0 2.5rem;
}
.spotlight {
  padding: 1.5rem 1.75rem;
  background: var(--cm-card-bg);
  border-left: 4px solid var(--cm-accent);
  border-radius: 0 10px 10px 0;
}
.spotlight-quote,
blockquote.spotlight-quote {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--cm-text) !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  background-color: transparent !important;
  font-style: italic;
}
.spotlight-quote p {
  color: inherit;
}
.spotlight-attribution {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  color: var(--cm-text-muted);
  margin-top: 0.75rem;
  line-height: 1.4;
}

/* ── Outreach Cards ──────────────────────────────────────────────────── */
.outreach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}
.outreach-card {
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  padding: 1.5rem;
}
.outreach-icon {
  font-size: 1.3rem;
  color: var(--cm-accent);
  margin-bottom: 0.75rem;
}
.outreach-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.outreach-card p {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--cm-text-muted);
  margin: 0;
}

/* ── Readership / Looker Embed ────────────────────────────────────────── */
.readership-section {
  margin: 2rem 0 2.5rem;
  text-align: center;
}
.readership-heading {
  font-family: 'Inter', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cm-text);
  margin: 0 0 0.5rem;
}
.readership-intro {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--cm-text-muted);
  margin: 0 0 1.25rem;
}
.looker-wrap {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--cm-border);
  background: var(--cm-card-bg);
}
.looker-wrap iframe {
  width: 100%;
  height: 420px;
  border: none;
}

/* ── Explore Grid (hub page links to sub-pages) ─────────────────────── */
.explore-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 1.5rem 0;
}
.explore-card {
  display: block;
  padding: 1.5rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: inherit !important;
  transition: all 0.25s;
}
.explore-card:hover {
  border-color: var(--cm-accent);
  box-shadow: 0 6px 20px rgba(165, 28, 48, 0.1);
  transform: translateY(-3px);
}
.explore-icon {
  font-size: 1.5rem;
  color: var(--cm-accent);
  display: block;
  margin-bottom: 0.75rem;
}
.explore-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.explore-card p {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--cm-text-muted);
  margin: 0 0 0.75rem;
}
.explore-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cm-accent);
}
.explore-card:hover .explore-link {
  text-decoration: underline;
}

/* ── Channel Cards (3-column) ────────────────────────────────────────── */
.channel-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}
.channel-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: inherit !important;
  transition: all 0.2s;
  background: var(--cm-card-bg);
}
.channel-card:hover {
  border-color: var(--cm-accent);
  box-shadow: 0 4px 12px rgba(165, 28, 48, 0.08);
  transform: translateY(-2px);
}
.channel-card .channel-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.5rem;
  color: var(--cm-accent);
}
.channel-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.channel-card p {
  font-size: 0.85rem;
  color: var(--cm-text-muted);
  line-height: 1.45;
  margin: 0;
}

/* ============================================================================
   Events Page — event cards, series, courses, past events, video grid
   ============================================================================ */

/* ── Event Cards ─────────────────────────────────────────────────────── */
.event-cards {
  display: grid;
  gap: 1.25rem;
  margin: 1.5rem 0;
}
.event-card {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 12px;
  transition: border-color 0.2s;
}
.event-card:hover {
  border-color: var(--cm-accent);
}
.event-card-featured {
  border-left: 4px solid var(--cm-accent);
}
.event-card-recurring {
  border-left: 4px solid #3b82f6;
}
.event-card-badge {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(165,28,48,0.1);
  color: var(--cm-accent);
  margin-bottom: 0.5rem;
  align-self: flex-start;
  display: none; /* badge is shown inside body */
}
.event-badge-monthly {
  background: rgba(59,130,246,0.1);
  color: #3b82f6;
}
.event-card-date {
  text-align: center;
  min-width: 60px;
  flex-shrink: 0;
  padding-top: 0.25rem;
}
.event-month {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--cm-accent);
  display: block;
}
.event-day {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cm-text);
  display: block;
  line-height: 1.2;
}
.event-card-body h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.event-location {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: var(--cm-text-muted);
  margin: 0 0 0.5rem !important;
}
.event-location i {
  margin-right: 0.25rem;
  color: var(--cm-accent);
}
.event-card-body p {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--cm-text-muted);
  margin: 0 0 0.75rem;
}
.event-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cm-accent);
  text-decoration: none;
}
.event-link:hover {
  text-decoration: underline;
}
.event-link i {
  margin-left: 0.25rem;
  font-size: 0.7rem;
}

/* ── Series Grid ─────────────────────────────────────────────────────── */
.series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}
.series-card {
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.2s;
}
.series-card:hover {
  border-color: var(--cm-accent);
}
.series-icon {
  font-size: 1.3rem;
  color: var(--cm-accent);
  margin-bottom: 0.75rem;
}
.series-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.series-cadence {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  color: var(--cm-accent);
  font-weight: 600;
  margin: 0 0 0.75rem !important;
}
.series-cadence i {
  margin-right: 0.25rem;
}
.series-card p {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--cm-text-muted);
  margin: 0 0 0.75rem;
}
.series-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.series-links a {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cm-accent);
  text-decoration: none;
}
.series-links a:hover {
  text-decoration: underline;
}
.series-links a i {
  margin-right: 0.25rem;
}

/* ── Course Grid ─────────────────────────────────────────────────────── */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.course-card {
  display: block;
  padding: 1.25rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: inherit !important;
  transition: all 0.2s;
}
.course-card:hover {
  border-color: var(--cm-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(165, 28, 48, 0.08);
}
.course-platform {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cm-accent);
  margin-bottom: 0.5rem;
}
.course-platform i {
  margin-right: 0.25rem;
}
.course-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.course-card p {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--cm-text-muted);
  margin: 0;
}

/* ── Past Events Timeline ────────────────────────────────────────────── */
.past-events-section {
  margin: 1.5rem 0;
}
.past-events-intro {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--cm-text-muted);
  margin-bottom: 1.5rem;
}
.past-events-timeline {
  position: relative;
  padding-left: 1rem;
}
.past-year-group {
  margin-bottom: 1.5rem;
}
.past-year {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cm-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 0.5rem;
  border: none !important;
  padding: 0 !important;
}
.past-event-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.past-event-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--cm-border);
  text-decoration: none !important;
  color: inherit !important;
  transition: background 0.15s;
}
a.past-event-item:hover {
  background: var(--cm-card-bg);
}
.past-event-name {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cm-text);
}
.past-event-location {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  color: var(--cm-text-muted);
  flex-shrink: 0;
}

/* ── Video / Resource Grid ───────────────────────────────────────────── */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}
.video-card {
  display: block;
  padding: 1.5rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: inherit !important;
  text-align: center;
  transition: all 0.2s;
}
.video-card:hover {
  border-color: var(--cm-accent);
  transform: translateY(-2px);
}
.video-icon {
  font-size: 2rem;
  color: var(--cm-accent);
  margin-bottom: 0.75rem;
}
.video-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.video-card p {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--cm-text-muted);
  margin: 0;
}

/* ============================================================================
   Partners Page — partner cards, CTA banner
   ============================================================================ */

/* ── Partner Cards Grid ──────────────────────────────────────────────── */
.partner-tier {
  margin-bottom: 2rem;
}
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.partner-card {
  display: block;
  padding: 1.25rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: inherit !important;
  text-align: center;
  transition: all 0.25s;
}
.partner-card:hover {
  border-color: var(--cm-accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(165, 28, 48, 0.08);
}
.partner-card-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  margin-bottom: 0.75rem;
}
.partner-card-logo img {
  max-height: 52px;
  max-width: 140px;
  object-fit: contain;
  opacity: 0.7;
  filter: grayscale(40%);
  transition: all 0.25s;
}
.partner-card:hover .partner-card-logo img {
  opacity: 1;
  filter: grayscale(0%);
}
.partner-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
  border: none !important;
  padding: 0 !important;
  color: var(--cm-text);
}
.partner-card p {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--cm-text-muted);
  margin: 0;
}

/* Dark mode partner logos */
.quarto-dark .partner-card-logo img {
  filter: grayscale(40%) brightness(1.5);
  opacity: 0.5;
}
.quarto-dark .partner-card:hover .partner-card-logo img {
  filter: brightness(1.3);
  opacity: 1;
}

/* ── Sponsor CTA Banner ──────────────────────────────────────────────── */
.sponsor-cta-banner {
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 16px;
  padding: 2.5rem;
  text-align: center;
  margin: 2rem 0;
}
.sponsor-cta-icon {
  font-size: 1.75rem;
  color: var(--cm-accent);
  margin-bottom: 1rem;
}
.sponsor-cta-banner h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cm-text);
  margin: 0 0 0.75rem;
  border: none !important;
  padding: 0 !important;
}
.sponsor-cta-banner > p {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--cm-text-muted);
  max-width: 550px;
  margin: 0 auto 1.5rem !important;
}
.sponsor-cta-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1rem;
}
.sponsor-cta-note {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: var(--cm-text-muted);
  margin-top: 0.5rem;
}

/* Shared CTA buttons */
.cta-btn-primary {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--cm-accent);
  color: #fff !important;
  text-decoration: none !important;
  border-radius: 6px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s;
}
.cta-btn-primary:hover {
  background: var(--cm-accent-hover);
}
.cta-btn-primary i {
  margin-right: 0.4rem;
}
.cta-btn-secondary {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: transparent;
  color: var(--cm-text) !important;
  text-decoration: none !important;
  border: 1.5px solid var(--cm-border);
  border-radius: 6px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.9rem;
  transition: border-color 0.2s;
}
.cta-btn-secondary:hover {
  border-color: var(--cm-accent);
}
.cta-btn-secondary i {
  margin-right: 0.4rem;
}

/* ── Legacy styles (kept for backward compat if JS-loaded) ──────────── */
.partners-section { margin: 1rem 0; }
.tier-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cm-text-muted);
  margin-bottom: 1rem;
  text-align: center;
}
.partner-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
  align-items: center;
}
.partner-logo {
  padding: 0.75rem 1.25rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.partner-logo:hover {
  transform: translateY(-2px);
  border-color: var(--cm-accent);
}
.partner-logo img {
  max-height: 44px;
  max-width: 130px;
  object-fit: contain;
  opacity: 0.65;
  filter: grayscale(60%);
  transition: all 0.2s;
}
.partner-logo:hover img {
  opacity: 1;
  filter: grayscale(0%);
}

/* ============================================================================
   Photo Carousel — auto-advancing with manual controls
   ============================================================================ */

.carousel-wrap {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto 2rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--cm-border);
  background: #000;
}

.carousel-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
  will-change: transform;
}

.carousel-slide {
  min-width: 100%;
  position: relative;
}

.carousel-slide img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.5rem 1.25rem 0.85rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: #fff;
  text-align: center;
  letter-spacing: 0.01em;
}

/* Arrow buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.45);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 1rem;
  cursor: pointer;
  z-index: 2;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel-btn:hover {
  background: rgba(0,0,0,0.7);
}
.carousel-btn-prev { left: 0.75rem; }
.carousel-btn-next { right: 0.75rem; }

/* Dot indicators */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 0;
  background: var(--cm-card-bg);
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}
.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cm-border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}
.carousel-dot.active {
  background: var(--cm-accent);
  transform: scale(1.3);
}

/* ── Organizer Cards (events page — "Who Makes This Happen") ─────────── */
.organizer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
}
.organizer-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--cm-card-bg);
  border: 1px solid var(--cm-border);
  border-radius: 10px;
  text-decoration: none !important;
  color: inherit !important;
  transition: all 0.2s;
}
.organizer-card:hover {
  border-color: var(--cm-accent);
  box-shadow: 0 4px 12px rgba(165, 28, 48, 0.08);
  transform: translateY(-2px);
}
.organizer-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--cm-border);
}
.organizer-card:hover .organizer-avatar {
  border-color: var(--cm-accent);
}
.organizer-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.organizer-info strong {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--cm-text);
  line-height: 1.3;
}
.organizer-info span {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--cm-text-muted);
  line-height: 1.4;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .spotlight-grid { grid-template-columns: 1fr; }
  .outreach-grid { grid-template-columns: 1fr; }
  .channel-grid-3 { grid-template-columns: 1fr; }
  .explore-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .organizer-grid { grid-template-columns: 1fr; }
  .event-card { flex-direction: column; }
  .event-card-date { text-align: left; min-width: auto; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .sponsor-cta-actions { flex-direction: column; align-items: center; }
  .carousel-slide img { height: 260px; }
}

@media (max-width: 480px) {
  .partner-grid { grid-template-columns: 1fr; }
  .course-grid { grid-template-columns: 1fr; }
}

/* =============================================================================
   Institutional Support — grayscale logo strip
   ============================================================================= */
.institutional-support {
  margin-top: 2rem;
  padding: 1.5rem 1rem 1.25rem;
  border-top: 1px solid var(--cm-border, #e5e5e5);
  text-align: center;
}
.institutional-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cm-text-muted, #888);
  margin: 0 0 1rem;
}
.institutional-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2.25rem;
  max-width: 880px;
  margin: 0 auto;
}
.institutional-logos img {
  height: 48px;
  max-width: 160px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.72;
  transition: filter 0.2s ease, opacity 0.2s ease;
}
.institutional-logos img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

@media (max-width: 600px) {
  .institutional-logos { gap: 1.5rem; }
  .institutional-logos img { height: 36px; max-width: 120px; }
}

/* ── Courses Using the Book (courses.html) ─────────────────────────────────
   A course directory for instructors weighing adoption: search and filter
   first, one row per course linking to its syllabus, then a small map as a
   glance. Filled from adopters.json by scripts/build_adopters.py. */
.crs {
  --crs-course: var(--cm-accent);
  --crs-workshop: #1c7a6c;
  --crs-ack: #b8700f;
  --crs-land: #e8eaee;
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-family: 'Inter', sans-serif;
}
.quarto-dark .crs, [data-bs-theme="dark"] .crs {
  --crs-course: #ff4d6d;
  --crs-workshop: #3cb7a3;
  --crs-ack: #e0a040;
  --crs-land: #262a3a;
}
.crs-head { padding-top: 1.5rem; }
.crs-head .opening-eyebrow { margin: 0 0 0.4rem; }
.crs-head h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 0.6rem;
  color: var(--cm-text);
  border: none;
}
.crs-head p { font-size: 1rem; line-height: 1.6; color: var(--cm-text-muted); max-width: 62ch; margin: 0; }

.crs-tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--cm-border); margin-bottom: -0.5rem; }
.crs-tab {
  font: inherit; font-size: 0.95rem; font-weight: 700;
  background: none; border: none; border-bottom: 2px solid transparent;
  color: var(--cm-text-muted); padding: 0.5rem 0.9rem; margin-bottom: -1px; cursor: pointer;
}
.crs-tab[aria-selected="true"] { color: var(--cm-text); border-bottom-color: var(--cm-accent); }
.crs-tab:focus-visible { outline: 2px solid var(--cm-accent); outline-offset: 2px; }
.crs-intro { font-size: 0.88rem; color: var(--cm-text-muted); margin: 0; }
.crs-intro a { color: var(--cm-accent); }
.crs-schools { list-style: none; margin: 0.25rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.1rem 1rem; }
.crs-srow {
  width: 100%; display: flex; align-items: center; gap: 0.65rem; text-align: left;
  font: inherit; background: none; border: none; border-radius: 8px; padding: 0.45rem 0.4rem; color: var(--cm-text);
}
button.crs-srow { cursor: pointer; }
button.crs-srow:hover { background: var(--cm-card-bg); }
button.crs-srow:focus-visible { outline: 2px solid var(--cm-accent); outline-offset: 1px; }
.crs-srow .adp-mark { width: 32px; height: 32px; border-radius: 8px; }
.crs-srow .adp-mark img { width: 22px; height: 22px; }
.crs-srow .adp-mark--mono { font-size: 0.6rem; }
.crs-sname { flex: 1; min-width: 0; font-size: 0.86rem; line-height: 1.3; }
.crs-badge { flex: none; font-size: 0.62rem; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; white-space: nowrap; }
.crs-badge--teach { color: var(--crs-course); }
.crs-badge--early { color: var(--crs-ack); }
.crs-badge--readers { color: var(--cm-text-muted); }
.crs-tools { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.crs-search { flex: 1 1 260px; margin: 0; }
.crs-search input {
  width: 100%;
  font: inherit;
  font-size: 0.92rem;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--cm-border);
  background: var(--cm-bg);
  color: var(--cm-text);
}
.crs-search input:focus-visible { outline: 2px solid var(--cm-accent); outline-offset: 1px; }
.crs-chips { display: flex; gap: 0.4rem; }
.crs-chip {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--cm-border);
  background: transparent;
  color: var(--cm-text-muted);
  cursor: pointer;
}
.crs-chip[aria-pressed="true"] { background: var(--cm-text); color: var(--cm-bg); border-color: var(--cm-text); }
.crs-chip:focus-visible { outline: 2px solid var(--cm-accent); outline-offset: 2px; }

.crs-list { display: flex; flex-direction: column; }
.crs-country {
  font-size: 0.72rem !important;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cm-text-muted);
  margin: 1.1rem 0 0 !important;
  padding: 0 0.5rem 0.4rem !important;
  border-bottom: 1px solid var(--cm-border) !important;
}
.crs-country:first-child { margin-top: 0 !important; }
.crs-country span { font-variant-numeric: tabular-nums; opacity: 0.7; margin-left: 0.3rem; }
.crs-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1.25fr) minmax(0, 1fr) auto 1rem;
  gap: 0.9rem;
  align-items: center;
  padding: 0.8rem 0.5rem;
  border-bottom: 1px solid var(--cm-border);
  text-decoration: none !important;
  color: inherit !important;
  transition: background 0.15s;
}
.crs-row:hover, .crs-row:focus-visible { background: var(--cm-card-bg); }
.crs-row:focus-visible { outline: 2px solid var(--cm-accent); outline-offset: -2px; }
.crs-course { display: flex; flex-direction: column; min-width: 0; }
.crs-course b { font-size: 0.92rem; font-weight: 650; line-height: 1.3; color: var(--cm-text); }
.crs-term { font-size: 0.78rem; color: var(--cm-text-muted); }
.crs-school { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--cm-text); min-width: 0; }
.crs-school span { font-size: 0.76rem; color: var(--cm-text-muted); }
.crs-kind {
  font-size: 0.64rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  border: 1px solid currentColor; border-radius: 999px; padding: 0.05rem 0.5rem; white-space: nowrap;
}
.crs-kind--course { color: var(--crs-course); }
.crs-kind--workshop { color: var(--crs-workshop); }
.crs-go { color: var(--cm-text-muted); font-size: 0.9rem; }
.crs-row:hover .crs-go { color: var(--cm-accent); }
.crs-empty { color: var(--cm-text-muted); font-size: 0.9rem; margin: 0; }
.crs-readers { border: 1px solid var(--cm-border); border-left: 3px solid var(--cm-accent); border-radius: 10px; padding: 0.9rem 1.1rem; }
.crs-readers h2 { font-size: 1rem !important; font-weight: 700; margin: 0 0 0.2rem !important; color: var(--cm-text); border: none !important; }
.crs-readers p { font-size: 0.86rem; color: var(--cm-text-muted); margin: 0 0 0.6rem; }
.crs-readers p a { color: var(--cm-accent); }
.crs-readers ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.crs-readers li { font-size: 0.82rem; color: var(--cm-text); background: var(--cm-card-bg); border: 1px solid var(--cm-border); border-radius: 999px; padding: 0.15rem 0.7rem; }
.crs-readers li small { color: var(--cm-text-muted); margin-left: 0.35rem; }
.crs-empty a { color: var(--cm-accent); }

.adp-mark {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--cm-border);
  display: grid; place-items: center; overflow: hidden;
}
.adp-mark img { width: 28px; height: 28px; object-fit: contain; }
.adp-mark--mono { font-size: 0.68rem; font-weight: 800; color: #A51C30; letter-spacing: 0.02em; }

.crs-early h2 { font-size: 1rem !important; font-weight: 700; margin: 0 0 0.25rem !important; color: var(--cm-text); }
.crs-early p { font-size: 0.85rem; color: var(--cm-text-muted); margin: 0 0 0.75rem; }
.crs-early ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0.6rem; }
.crs-early li { display: flex; gap: 0.7rem; align-items: center; font-size: 0.85rem; color: var(--cm-text); }
.crs-early li span { display: flex; flex-direction: column; }
.crs-early small { font-size: 0.75rem; color: var(--cm-text-muted); }

.crs-mapwrap { margin: 0; background: var(--cm-card-bg); border: 1px solid var(--cm-border); border-radius: 14px; padding: 0.6rem 0.6rem 0.5rem; }
.adp-map { display: block; width: 100%; height: auto; }
.adp-land { fill: var(--crs-land); stroke: var(--cm-card-bg); stroke-width: 0.6; }
.adp-pin { cursor: pointer; }
.adp-pin circle { stroke: var(--cm-card-bg); stroke-width: 1.6; }
.adp-pin--course circle { fill: var(--crs-course); }
.adp-pin--workshop circle { fill: var(--crs-workshop); }
.adp-pin--acknowledged circle { fill: var(--crs-ack); }
.adp-pin:hover circle, .adp-pin:focus circle { r: 8.5; }
.crs-mapwrap figcaption { text-align: center; font-size: 0.75rem; color: var(--cm-text-muted); margin-top: 0.3rem; }

.crs-exits { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0.75rem; }
.crs-exit {
  display: flex; flex-direction: column; gap: 0.2rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--cm-border);
  border-radius: 12px;
  text-decoration: none !important;
  color: inherit !important;
  transition: border-color 0.2s;
}
.crs-exit:hover { border-color: var(--cm-accent); }
.crs-exit strong { font-size: 0.95rem; color: var(--cm-text); }
.crs-exit span { font-size: 0.85rem; color: var(--cm-text-muted); }
.crs-exit--primary { background: var(--cm-accent); border-color: var(--cm-accent); }
.crs-exit--primary strong, .crs-exit--primary span { color: #fff; }
.crs-exit--primary:hover { background: var(--cm-accent-hover); }
.crs-note { font-size: 0.8rem; color: var(--cm-text-muted); margin: 0 0 2rem; }
.crs-note a { color: var(--cm-accent); }

@media (max-width: 640px) {
  .crs-row { grid-template-columns: 40px minmax(0, 1fr) 1rem; row-gap: 0.25rem; }
  .crs-school { grid-column: 2; }
  .crs-kind { display: none; }
  .crs-go { grid-row: 1; grid-column: 3; }
}

/* ── Schools where readers study (community/index.html) ─────────────────── */
.readers-at { margin-top: 1rem; border: 1px solid var(--cm-border); border-radius: 10px; padding: 0.75rem 1rem; text-align: left; }
.readers-at summary { cursor: pointer; font-weight: 700; font-size: 0.92rem; color: var(--cm-text); }
.readers-at-note { font-size: 0.82rem !important; color: var(--cm-text-muted); margin: 0.6rem 0 0.4rem !important; line-height: 1.5 !important; }
.readers-at-note a { color: var(--cm-accent); }
.readers-at-row { display: grid; grid-template-columns: 9.5rem 1fr; gap: 0.75rem; padding: 0.5rem 0; border-top: 1px solid var(--cm-border); }
.readers-at-row h3 { font-size: 0.82rem !important; font-weight: 700; margin: 0.15rem 0 0 !important; color: var(--cm-text); }
.readers-at-row ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.35rem; }
.readers-at-row li { font-size: 0.78rem; color: var(--cm-text); background: var(--cm-card-bg); border: 1px solid var(--cm-border); border-radius: 999px; padding: 0.1rem 0.6rem; }
@media (max-width: 640px) { .readers-at-row { grid-template-columns: 1fr; gap: 0.35rem; } }