/* ==========================================================================
   Field details page ("/fields/{slug}") — animated hero, glass toolbar,
   staggered card entrance, gradient-accent category cards.
   Scoped to .field-page so it never leaks into Categories/Topics pages,
   which share the base .kb-* classes defined in style.css.
   ========================================================================== */

.field-page { position: relative; overflow-x: clip; }

/* ---------- Breadcrumb ---------- */
.field-page .kb-breadcrumb {
  animation: field-fade-in .5s ease both;
}

/* ---------- Hero ---------- */
.field-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--bs-border-color);
  border-radius: 1.25rem;
  padding: 2rem 2.25rem;
  margin-bottom: 1.75rem;
  background: var(--bs-tertiary-bg);
  animation: field-fade-up .55s ease both;
  animation-delay: .05s;
}

.field-hero__mesh {
  position: absolute;
  inset: -60% -10% auto -10%;
  height: 220%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(32% 60% at 12% 20%, rgba(var(--bs-primary-rgb), .22), transparent 70%),
    radial-gradient(28% 55% at 90% 15%, rgba(255, 122, 89, .16), transparent 70%),
    radial-gradient(26% 50% at 55% 85%, rgba(56, 189, 248, .16), transparent 70%);
  filter: blur(10px);
  animation: field-mesh-drift 18s ease-in-out infinite alternate;
}
.field-hero__grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(to right, rgba(var(--bs-body-color-rgb, 0,0,0), .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(var(--bs-body-color-rgb, 0,0,0), .05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(85% 100% at 0% 0%, #000 30%, transparent 85%);
}
@media (prefers-reduced-motion: reduce) {
  .field-hero__mesh { animation: none; }
}

.field-hero > * { position: relative; z-index: 1; }

.field-hero .kb-icon-tile {
  box-shadow: 0 .6rem 1.5rem -0.6rem rgba(var(--bs-primary-rgb), .45);
  animation: field-icon-pop .5s cubic-bezier(.34,1.56,.64,1) both;
  animation-delay: .15s;
}

.field-hero .kb-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.field-hero .kb-eyebrow::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--bs-primary);
  box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), .6);
  animation: field-pulse 2s ease-out infinite;
}

.field-hero h1 {
  font-weight: 800;
  letter-spacing: -.01em;
}

.field-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem .9rem;
}
.field-stat-chip {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem .9rem;
  border-radius: 50rem;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  font-size: .85rem;
  color: var(--bs-secondary-color);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.field-stat-chip:hover {
  transform: translateY(-2px);
  border-color: rgba(var(--bs-primary-rgb), .35);
  box-shadow: 0 .5rem 1.25rem -0.75rem rgba(var(--bs-primary-rgb), .45);
}
.field-stat-chip i { color: var(--bs-primary); font-size: 1rem; }
.field-stat-num { font-weight: 800; color: var(--bs-body-color); }

/* ---------- Toolbar ---------- */
.field-page .kb-toolbar {
  animation: field-fade-up .5s ease both;
  animation-delay: .12s;
  position: relative;
  overflow: hidden;
}
.field-page .kb-toolbar::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--bs-primary), #ff7a59, #38bdf8);
  background-size: 200% 100%;
  animation: field-grad-pan 6s ease-in-out infinite alternate;
}
.field-page .kb-toolbar-search input.form-control:focus {
  box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .15);
}

.field-results-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}

/* ---------- Category grid: staggered entrance ---------- */
.field-cat-item {
  animation: field-card-in .5s ease both;
  animation-delay: var(--field-delay, 0s);
}
@media (prefers-reduced-motion: reduce) {
  .field-cat-item, .field-hero, .field-page .kb-toolbar, .field-page .kb-breadcrumb { animation: none; }
}

/* Extra flourish layered on top of the shared .kb-category-card so the base
   class used on Categories/Topics pages stays untouched. */
.field-cat-card {
  position: relative;
  overflow: hidden;
}
.field-cat-card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--bs-primary), #ff7a59, #38bdf8);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.field-cat-card:hover::before { transform: scaleX(1); }
.field-cat-card .kb-icon-tile {
  transition: transform .25s ease;
}
.field-cat-card:hover .kb-icon-tile {
  transform: scale(1.08) rotate(-4deg);
}

/* ---------- Empty / no-results states ---------- */
.field-empty-state i {
  animation: field-float 3s ease-in-out infinite;
  display: inline-block;
}
@media (prefers-reduced-motion: reduce) {
  .field-empty-state i { animation: none; }
}

/* ---------- Load more ---------- */
.field-loadmore-btn {
  transition: transform .2s ease, box-shadow .2s ease;
}
.field-loadmore-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 .6rem 1.25rem -0.6rem rgba(var(--bs-primary-rgb), .4);
}

/* ---------- Keyframes ---------- */
@keyframes field-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes field-fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes field-card-in {
  from { opacity: 0; transform: translateY(16px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes field-icon-pop {
  from { opacity: 0; transform: scale(.6) rotate(-8deg); }
  to   { opacity: 1; transform: scale(1) rotate(0); }
}
@keyframes field-mesh-drift {
  0%   { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(2%,-2%,0) scale(1.06); }
}
@keyframes field-grad-pan {
  0%   { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}
@keyframes field-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), .55); }
  70%  { box-shadow: 0 0 0 7px rgba(var(--bs-primary-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), 0); }
}
@keyframes field-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}