/* ==========================================================================
   CAT-3 — Neon Card Grid
   ========================================================================== */
.cat-3__header {
  position: relative;
  padding: 4rem 4rem 3rem;
  overflow: hidden;
  background: var(--color-surface);
}
.cat-3__watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(5rem, 15vw, 12rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.04em;
  color: var(--color-primary);
  opacity: .05;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}
.cat-3__header-inner { position: relative; z-index: 1; }
.cat-3__title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  margin: 0 0 .5rem;
  color: var(--color-text);
  letter-spacing: -.02em;
}
.cat-3__desc { color: var(--color-muted); margin: 0 0 .75rem; font-size: 1rem; }
.cat-3__count {
  display: inline-block;
  font-size: .75rem;
  color: var(--color-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: .25rem .75rem;
  border-radius: 20px;
}

.cat-3__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 2.5rem 2rem;
}
.cat-3__card {
  background: var(--color-surface);
  border-radius: var(--radius, 10px);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}
.cat-3__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-lg, 0 16px 40px rgba(0,0,0,.15));
}
.cat-3__thumb {
  display: block;
  height: 200px;
  overflow: hidden;
}
.cat-3__thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .35s;
}
.cat-3__card:hover .cat-3__thumb img { transform: scale(1.05); }
.cat-3__thumb--placeholder { background: var(--color-border); height: 200px; }
.cat-3__card-body { padding: 1.1rem 1.25rem 1.4rem; flex: 1; display: flex; flex-direction: column; }
.cat-3__card-title {
  font-size: 1rem;
  font-weight: 700;
  margin: .4rem 0 .6rem;
  line-height: 1.4;
  flex: 1;
}
.cat-3__card-title a { color: var(--color-text); text-decoration: none; }
.cat-3__card-title a:hover { color: var(--color-primary); }
.cat-3__excerpt { font-size: .875rem; color: var(--color-muted); margin: 0 0 .75rem; line-height: 1.55; }
.cat-3__meta { font-size: .75rem; color: var(--color-muted); margin-top: auto; }
.cat-3__author { font-weight: 600; color: var(--color-secondary); }

@media (max-width: 1024px) {
  .cat-3__grid { grid-template-columns: repeat(3, 1fr); padding: 2rem; }
  .cat-3__header { padding: 3rem 2rem; }
}
@media (max-width: 768px) {
  .cat-3__grid { grid-template-columns: repeat(2, 1fr); }
  .cat-3__header { padding: 2.5rem 1.5rem; }
}
@media (max-width: 480px) {
  .cat-3__grid { grid-template-columns: 1fr; padding: 1rem; }
}