/* Stránka Portfolio — filtr a skrývání skupin */

.portfolio-filter {
  margin-bottom: 2rem;
}

.portfolio-filter__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: center;
  justify-content: center;
}

.portfolio-filter__btn {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: var(--primary-dark);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.portfolio-filter__btn:hover,
.portfolio-filter__btn:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  outline: none;
}

.portfolio-filter__btn.is-active {
  background: linear-gradient(135deg, var(--accent-color) 0%, #a88940 100%);
  border-color: transparent;
  color: #0a0a0d;
}

/* Před/Po a AI: stejná mřížka jako portfolio, jen 2 sloupce 50/50 (ostatní sekce: auto-fill) */
.page-portfolio .portfolio-page-grid--before-after {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 520px) {
  .page-portfolio .portfolio-page-grid--before-after {
    grid-template-columns: 1fr;
  }
}

.portfolio-filter__empty {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 0.95rem;
  color: rgba(236, 236, 241, 0.72);
}

.portfolio-item.portfolio-item--hidden {
  display: none !important;
}

.portfolio-group.portfolio-group--filtered-out {
  display: none;
}

.portfolio-pred-po-col.portfolio-pred-po-col--filtered-out {
  display: none;
}

.portfolio-pred-po-dual.portfolio-pred-po-dual--filtered-out {
  display: none;
}

@media (max-width: 520px) {
  .portfolio-filter__inner {
    justify-content: flex-start;
  }
}