.kat-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

.kat-header {
  text-align: center;
  margin-bottom: 1rem;
}

.kat-title {
  font-family: var(--font-display);
  color: var(--text-primary);
  margin: 0 0 .4rem;
  font-size: 2rem;
}

.kat-subtitle {
  color: var(--text-secondary);
  font-size: .95rem;
}

.kat-loading {
  justify-content: center;
  padding: 3rem 0;
  display: flex;
}

.kat-wrap {
  width: 100%;
  max-width: min(1180px, 94vw);
  margin: 1rem auto;
}

.kat-list {
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: .6rem;
  display: grid;
}

.kat-list-bar {
  grid-column: 1 / -1;
  height: 0;
}

.kat-list-item .kat-share {
  background: var(--accent-primary, #7c3aed);
  opacity: .75;
  border-radius: 999px;
  height: 5px;
  margin-top: .7rem;
  transition: width .3s;
  display: block;
}

.kat-list-item.is-parent {
  border-color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 7%, var(--bg-card));
  grid-column: 1 / -1;
}

.kat-list-item.is-parent .kat-share {
  opacity: .85;
}

.kat-list-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  gap: .75rem;
  padding: .9rem 1.1rem;
  display: block;
}

.kat-list-item:active, .kat-list-item:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.kat-list-item {
  transition: border-color .16s, transform .16s;
}

.kat-list-head {
  justify-content: space-between;
  align-items: baseline;
  gap: .6rem;
  display: flex;
}

.kat-list-name {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.kat-list-count {
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: .85rem;
}

.kat-back-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  margin: 0 auto .5rem;
  padding: .4rem .9rem;
  font-size: .85rem;
  display: inline-block;
}

.kat-back-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.kat-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 1100px;
  margin: 2rem auto 0;
  padding: 1.25rem;
}

.kat-panel-head {
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  display: flex;
}

.kat-panel-head h2 {
  font-family: var(--font-display);
  color: var(--text-primary);
  margin: 0;
  font-size: 1.3rem;
}

.kat-panel-close {
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  background: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  font-size: .9rem;
}

.kat-panel-close:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.kat-panel-note {
  color: var(--text-muted);
  margin: 0 0 .75rem;
  font-size: .85rem;
}

.kat-panel-empty {
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem 0;
}

@media (max-width: 640px) {
  .kat-title {
    font-size: 1.5rem;
  }

  .kat-subtitle {
    font-size: .85rem;
  }

  .kat-wrap {
    max-width: 100%;
  }

  .kat-panel {
    padding: 1rem .75rem;
  }
}

.kat-more {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 999px;
  grid-column: 1 / -1;
  justify-self: center;
  margin-top: .4rem;
  padding: .55rem 1.4rem;
  font-size: .9rem;
  transition: border-color .16s, color .16s;
}

.kat-more:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}