.skill-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.skill-group {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 24px;
}

.skill-group h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip-list li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-line-strong);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-panel-raised);
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
  opacity: 0;
  transform: translateY(6px) scale(0.96);
}

/* Staggered entrance, keyed off each chip's --i custom property,
   triggered once the parent group scrolls into view. */
.skill-group.is-visible .chip-list li {
  animation: chip-charge 0.45s ease forwards;
  animation-delay: calc(var(--i, 0) * 0.06s);
}

@keyframes chip-charge {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.chip-list li:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
  .chip-list li { opacity: 1; transform: none; animation: none; }
}