/* ── Portfólio escuro fullscreen ── */
.pf-grid {
  margin-top: 20px;
}

.pf-item {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 75%; /* proporção 4:3 — menos zoom, menos corte */
  cursor: pointer;
}

.col-lg-8 .pf-item {
  height: 320px;
}

.pf-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s ease;
  display: block;
}

.pf-item:hover img {
  transform: scale(1.07);
}

.pf-cover-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.pf-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.15) 50%, transparent 100%);
  transition: background 0.3s ease;
  pointer-events: none;
}

.pf-item:hover .pf-overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0.1) 100%);
}

.pf-label {
  padding: 20px 22px 16px;
  transform: translateY(0);
  transition: transform 0.3s ease;
}

.pf-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-color);
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(37, 99, 235, 0.4);
  border-radius: 20px;
  padding: 2px 10px;
  margin-bottom: 6px;
}

.pf-label h4 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
  font-family: var(--heading-font);
  line-height: 1.3;
}

.pf-actions {
  display: flex;
  gap: 10px;
  padding: 0 22px 20px;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.3s ease;
  pointer-events: all;
}

.pf-item:hover .pf-actions {
  opacity: 1;
  transform: translateY(0);
}

.pf-actions a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #ffffff;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.pf-actions a:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: #ffffff;
}

/* Filtros sobre fundo escuro */
.pf-dark {
  padding: 0 20px 24px !important;
  justify-content: center;
}

.pf-dark li {
  color: rgba(255,255,255,0.55) !important;
  border: 1px solid rgba(255,255,255,0.15) !important;
  border-radius: 30px !important;
  padding: 6px 20px !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  letter-spacing: 0.02em !important;
  transition: all 0.25s ease !important;
  background: transparent !important;
}

.pf-dark li:hover {
  color: #ffffff !important;
  border-color: rgba(255,255,255,0.4) !important;
  background: rgba(255,255,255,0.08) !important;
}

.pf-dark li.filter-active {
  color: #ffffff !important;
  background: var(--accent-color) !important;
  border-color: var(--accent-color) !important;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4) !important;
}

@media (max-width: 768px) {
  .pf-item {
    padding-top: 65%;
  }
}