/* ─── Fact Detail Page — Mobile-first social layout ─────────────────────────
 * Mobile  : single column, sticky topbar, fixed bottom action bar
 * Desktop (≥ 900px): 2-col grid — main article + sticky sidebar
 * ─────────────────────────────────────────────────────────────────────────── */

/* ── Root article ──────────────────────────────────────────────────────────── */
.fact-detail {
  width: 100%;
  /* Bottom padding makes room for the fixed action bar on mobile */
  padding-bottom: calc(68px + env(safe-area-inset-bottom));
  background: var(--cream);
  -webkit-tap-highlight-color: transparent;
}

/* ── Sticky top bar ────────────────────────────────────────────────────────── */
.fact-detail__topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--white);
  border-bottom: 1px solid var(--cream-dark);
  min-height: 52px;
}

.fact-detail__back-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  color: var(--ink-muted);
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.fact-detail__back-btn:active {
  background: var(--cream-dark);
  color: var(--ink);
}

.fact-detail__topbar-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

/* ── Admin kebab menu ──────────────────────────────────────────────────────── */
.fact-detail__admin-menu {
  margin-left: auto;
  flex-shrink: 0;
  position: relative;
}

.fact-detail__admin-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  color: var(--ink-muted);
  list-style: none;
  transition: background var(--transition);
}

.fact-detail__admin-trigger::-webkit-details-marker { display: none; }
.fact-detail__admin-trigger::marker { display: none; }

.fact-detail__admin-trigger:active {
  background: var(--cream-dark);
}

.fact-detail__admin-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 160px;
  z-index: 30;
}

.fact-detail__admin-dropdown .admin-btn {
  width: 100%;
  text-align: left;
}

/* ── Main column ───────────────────────────────────────────────────────────── */
.fact-detail__main {
  display: flex;
  flex-direction: column;
}

/* ── Hero image — edge-to-edge on mobile ───────────────────────────────────── */
.fact-detail__image-wrap {
  position: relative;
  width: 100%;
  line-height: 0;
}

.fact-detail__image {
  width: 100%;
  max-height: 280px;
  object-fit: cover;
  display: block;
  border-radius: 0; /* edge-to-edge on mobile */
}

.fact-detail__remove-image {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: rgba(26, 26, 46, 0.72);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: background var(--transition);
}

.fact-detail__remove-image:active {
  background: rgba(232, 69, 60, 0.9);
}

/* ── Card body ─────────────────────────────────────────────────────────────── */
.fact-detail__card {
  background: var(--white);
  padding: var(--space-5) var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  /* No border-radius on mobile — flush with image above */
}

.fact-detail__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin: 0;
}

.fact-detail__summary {
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.75;
  color: var(--ink);
}

.fact-detail__summary p { margin: 0; }

/* ── Collapsible body ──────────────────────────────────────────────────────── */
.fact-detail__more {
  border-top: 1px solid var(--cream-dark);
  padding-top: var(--space-3);
}

.fact-detail__more-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  list-style: none;
  padding: var(--space-1) 0;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.fact-detail__more-toggle::-webkit-details-marker { display: none; }
.fact-detail__more-toggle::marker { display: none; }

.fact-detail__more-chevron {
  fill: currentColor;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.fact-detail__more[open] .fact-detail__more-chevron {
  transform: rotate(180deg);
}

.fact-detail__body {
  margin-top: var(--space-3);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.fact-detail__body p { margin: 0 0 var(--space-3); }
.fact-detail__body p:last-child { margin-bottom: 0; }

/* ── Tags ──────────────────────────────────────────────────────────────────── */
.fact-detail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

/* ── Source pill ───────────────────────────────────────────────────────────── */
.fact-detail__source {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  color: var(--ink-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--cream);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius-pill);
  transition: background var(--transition), border-color var(--transition);
  max-width: 100%;
  overflow: hidden;
  text-decoration: none;
}

.fact-detail__source svg { fill: currentColor; flex-shrink: 0; }

.fact-detail__source:hover {
  background: var(--amber-light);
  border-color: var(--amber);
}

.fact-detail__source--sidebar {
  width: 100%;
  box-sizing: border-box;
}

.fact-detail__source-url {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--amber-dark);
  font-weight: 500;
  min-width: 0;
  flex: 1;
}

/* ── Mobile fixed action bar ───────────────────────────────────────────────── */
.fact-detail__actions {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--white);
  border-top: 1px solid var(--cream-dark);
}

/* Mobile version: fixed to bottom of screen */
.fact-detail__actions--mobile {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  padding: var(--space-2) var(--space-3) calc(var(--space-2) + env(safe-area-inset-bottom));
}

/* Comments shortcut button in action bar */
.fact-detail__comments-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 var(--space-3);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.fact-detail__comments-btn svg { fill: currentColor; flex-shrink: 0; }

.fact-detail__comments-btn:active {
  background: rgba(26, 26, 46, 0.06);
  color: var(--ink);
}

/* ── Related facts — horizontal scroll row ─────────────────────────────────── */
.related-facts {
  background: var(--white);
  margin-top: var(--space-3);
  padding: var(--space-5) 0 0;
}

.related-facts__heading {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-4) var(--space-3);
  margin: 0;
}

.related-facts__heading-icon { font-size: 1.1rem; line-height: 1; }

.related-facts__scroll {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  /* No scroll-snap — the JS loop controller handles positioning */
  -webkit-overflow-scrolling: touch;
  padding: 0 var(--space-4) var(--space-5);
  /* Hide scrollbar while keeping scroll behaviour */
  scrollbar-width: none;
}

.related-facts__scroll::-webkit-scrollbar { display: none; }

/* Each card in the scroll row */
.related-fact-card {
  flex: 0 0 220px;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition:
    box-shadow var(--transition),
    transform var(--transition);
}

.related-fact-card:active {
  transform: scale(0.98);
  box-shadow: none;
}

/* Thumbnail */
.related-fact-card__image-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--cream-dark);
  flex-shrink: 0;
}

.related-fact-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.related-fact-card:hover .related-fact-card__image {
  transform: scale(1.04);
}

/* Image placeholder */
.related-fact-card__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.12) 0%, rgba(26, 26, 46, 0.06) 100%);
}

.related-fact-card__image-placeholder--animals    { background: linear-gradient(135deg, rgba(76, 175, 80, 0.15) 0%, rgba(26, 46, 26, 0.06) 100%); }
.related-fact-card__image-placeholder--food       { background: linear-gradient(135deg, rgba(255, 112, 67, 0.15) 0%, rgba(46, 26, 20, 0.06) 100%); }
.related-fact-card__image-placeholder--history    { background: linear-gradient(135deg, rgba(141, 110, 99, 0.15) 0%, rgba(30, 24, 22, 0.06) 100%); }
.related-fact-card__image-placeholder--science    { background: linear-gradient(135deg, rgba(66, 165, 245, 0.15) 0%, rgba(20, 30, 46, 0.06) 100%); }
.related-fact-card__image-placeholder--sports     { background: linear-gradient(135deg, rgba(236, 64, 122, 0.15) 0%, rgba(46, 20, 30, 0.06) 100%); }
.related-fact-card__image-placeholder--technology { background: linear-gradient(135deg, rgba(126, 87, 194, 0.15) 0%, rgba(30, 20, 46, 0.06) 100%); }
.related-fact-card__image-placeholder--geography  { background: linear-gradient(135deg, rgba(38, 166, 154, 0.15) 0%, rgba(20, 40, 38, 0.06) 100%); }
.related-fact-card__image-placeholder--entertainment { background: linear-gradient(135deg, rgba(255, 167, 38, 0.15) 0%, rgba(46, 38, 20, 0.06) 100%); }
.related-fact-card__image-placeholder--health     { background: linear-gradient(135deg, rgba(102, 187, 106, 0.15) 0%, rgba(26, 40, 26, 0.06) 100%); }
.related-fact-card__image-placeholder--politics   { background: linear-gradient(135deg, rgba(183, 28, 28, 0.12) 0%, rgba(40, 20, 20, 0.06) 100%); }
.related-fact-card__image-placeholder--showbiz    { background: linear-gradient(135deg, rgba(249, 168, 37, 0.15) 0%, rgba(46, 40, 20, 0.06) 100%); }
.related-fact-card__image-placeholder--miscellaneous { background: linear-gradient(135deg, rgba(120, 144, 156, 0.15) 0%, rgba(26, 30, 32, 0.06) 100%); }

.related-fact-card__placeholder-quote {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(245, 166, 35, 0.22);
  line-height: 1;
  user-select: none;
}

/* Card content below image */
.related-fact-card__content {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.related-fact-card__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.related-fact-card__tag {
  font-size: 0.72rem;
  color: var(--ink-muted);
}

.related-fact-card__title {
  font-family: var(--font-display);
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.35;
  margin: 0;
  /* Clamp to 2 lines */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-fact-card__summary {
  font-size: 0.8rem;
  color: var(--ink-muted);
  line-height: 1.5;
  flex: 1;
  /* Clamp to 2 lines */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-fact-card__cta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--amber-dark);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: auto;
}

.related-fact-card__arrow {
  transition: transform var(--transition);
}

.related-fact-card:hover .related-fact-card__arrow {
  transform: translateX(3px);
}

/* ── Comments drawer (collapsible <details>) ───────────────────────────────── */
.fact-detail__comments-drawer {
  background: var(--white);
  margin-top: var(--space-3);
}

.fact-detail__comments-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-4);
  cursor: pointer;
  list-style: none;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.fact-detail__comments-summary::-webkit-details-marker { display: none; }
.fact-detail__comments-summary::marker { display: none; }

.fact-detail__comments-summary:active {
  background: var(--cream);
}

.fact-detail__comments-drawer[open] .fact-detail__comments-summary {
  border-bottom-color: var(--cream-dark);
}

.fact-detail__comments-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}

.fact-detail__comments-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 var(--space-2);
  background: var(--cream-dark);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-muted);
  font-family: var(--font-body);
}

.fact-detail__comments-chevron {
  fill: currentColor;
  color: var(--ink-muted);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.fact-detail__comments-drawer[open] .fact-detail__comments-chevron {
  transform: rotate(180deg);
}

.fact-detail__comments-body {
  padding: var(--space-4);
}

/* ── Desktop sidebar — hidden on mobile ────────────────────────────────────── */
.fact-detail__sidebar { display: none; }

/* ── Desktop layout (≥ 900px) ──────────────────────────────────────────────── */
@media (min-width: 900px) {
  .fact-detail {
    display: grid;
    grid-template-columns: 1fr 260px;
    grid-template-rows: auto auto;
    column-gap: var(--space-8);
    width: 100%;
    max-width: 1080px;
    margin-inline: auto;
    padding: 0 var(--space-6) var(--space-10);
    background: transparent;
  }

  /* Topbar spans full width */
  .fact-detail__topbar {
    grid-column: 1 / -1;
    position: relative; /* release sticky on desktop — nav handles that */
    top: auto;
    background: transparent;
    border-bottom: none;
    padding: var(--space-6) 0 var(--space-4);
  }

  /* Main column */
  .fact-detail__main {
    grid-column: 1;
    grid-row: 2;
    gap: var(--space-4);
    min-width: 0; /* prevent grid blowout */
  }

  /* Sidebar */
  .fact-detail__sidebar {
    display: flex;
    grid-column: 2;
    grid-row: 2;
    flex-direction: column;
    gap: var(--space-4);
    position: sticky;
    top: calc(var(--nav-height) + var(--space-6));
    align-self: start;
  }

  /* Hero image — rounded on desktop */
  .fact-detail__image {
    border-radius: var(--radius-xl);
    max-height: 420px;
    box-shadow: var(--shadow-md);
  }

  /* Card body — more breathing room */
  .fact-detail__card {
    border-radius: var(--radius-xl);
    border: 1px solid rgba(26, 26, 46, 0.06);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6);
  }

  /* Related facts — wider cards on desktop */
  .related-fact-card {
    flex: 0 0 260px;
  }

  .related-facts {
    border-radius: var(--radius-xl);
    border: 1px solid rgba(26, 26, 46, 0.06);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    padding: var(--space-5) 0 0;
  }

  /* Comments drawer */
  .fact-detail__comments-drawer {
    border-radius: var(--radius-xl);
    border: 1px solid rgba(26, 26, 46, 0.06);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
  }

  /* Hide mobile action bar — sidebar handles actions on desktop */
  .fact-detail__actions--mobile {
    display: none;
  }

  /* ── Sidebar action panel ──────────────────────────────────────────────── */
  .fact-detail__sidebar-actions {
    background: var(--white);
    border: 1px solid rgba(26, 26, 46, 0.06);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }

  .fact-detail__sidebar-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink-muted);
    margin: 0 0 var(--space-1);
  }

  /* Sidebar-variant like + share: full-width pill buttons */
  .feed-card__like--sidebar,
  .feed-card__share--sidebar {
    width: 100%;
    min-height: 44px;
    justify-content: center;
    border: 1px solid var(--cream-dark);
    border-radius: var(--radius-lg);
    background: var(--cream);
    transition:
      background var(--transition),
      border-color var(--transition),
      color var(--transition);
  }

  .feed-card__like--sidebar:hover {
    background: rgba(232, 69, 60, 0.07);
    border-color: rgba(232, 69, 60, 0.3);
    color: var(--red);
  }

  .feed-card__like--sidebar.feed-card__like--active {
    background: rgba(232, 69, 60, 0.1);
    border-color: rgba(232, 69, 60, 0.35);
    color: var(--red);
  }

  .feed-card__share--sidebar {
    color: var(--ink-soft);
  }

  .feed-card__share--sidebar:hover {
    background: var(--amber-light);
    border-color: var(--amber);
    color: var(--ink);
  }

  .fact-detail__comments-btn--sidebar {
    width: 100%;
    min-height: 44px;
    justify-content: center;
    border: 1px solid var(--cream-dark);
    border-radius: var(--radius-lg);
    background: var(--cream);
    font-size: 0.875rem;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
  }

  .fact-detail__comments-btn--sidebar:hover {
    background: var(--cream-dark);
    color: var(--ink);
  }

  /* Sidebar source panel */
  .fact-detail__sidebar-source {
    background: var(--white);
    border: 1px solid rgba(26, 26, 46, 0.06);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--space-4) var(--space-5);
  }

  /* Hide the inline source pill inside card body on desktop (sidebar shows it) */
  .fact-detail__source:not(.fact-detail__source--sidebar) {
    display: none;
  }
}

/* ── Hover enhancements (pointer devices only) ─────────────────────────────── */
@media (hover: hover) {
  .fact-detail__back-btn:hover {
    background: var(--cream-dark);
    color: var(--ink);
  }

  .related-fact-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
  }
}