/* =========================
PORTAFOLIO — EL MERCADO NEGRO
========================= */

.portfolio-hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(rgba(3,3,3,.35), rgba(3,3,3,.88)),
    url("../img/portfolio/portfolio-fallback.jpg") center / cover no-repeat;
}

.portfolio-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* Flecha / scroll cue estilo película */

.portfolio-scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 42px;
  z-index: 3;
  width: 42px;
  height: 72px;
  transform: translateX(-50%);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.portfolio-scroll-cue span {
  position: relative;
  display: block;
  width: 1px;
  height: 66px;
  background: rgba(240,230,210,.58);
  animation: portfolioArrow 1.6s ease-in-out infinite;
}

.portfolio-scroll-cue span::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 11px;
  height: 11px;
  border-right: 1px solid rgba(240,230,210,.78);
  border-bottom: 1px solid rgba(240,230,210,.78);
  transform: translateX(-50%) rotate(45deg);
}

@keyframes portfolioArrow {
  0%, 100% {
    transform: translateY(-8px);
    opacity: .45;
  }

  50% {
    transform: translateY(6px);
    opacity: 1;
  }
}

/* Grilla full width 3 columnas */

.portfolio-grid-section {
  margin: 0;
  padding: 0;
  background: var(--black);
  color: var(--bone);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
}

.portfolio-card {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1.05;
  overflow: hidden;
  background: #111;
}

.portfolio-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition:
    transform .45s ease,
    filter .45s ease;
}

.portfolio-card-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(3,3,3,.82);
  opacity: 0;
  transition: opacity .3s ease;
}

.portfolio-card-overlay span {
  font-family: "Bebas Neue", sans-serif;
  font-size: clamp(30px, 3.6vw, 66px);
  line-height: .9;
  text-align: center;
  color: var(--bone);
  letter-spacing: .02em;
  text-transform: uppercase;
}

.portfolio-card:hover img {
  transform: scale(1.05);
  filter: contrast(1.12);
}

.portfolio-card:hover .portfolio-card-overlay {
  opacity: 1;
}

/* Responsive */

@media (max-width: 991px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-scroll-cue {
    bottom: 34px;
  }
}

@media (max-width: 575px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-card {
    aspect-ratio: 1 / 1.12;
  }
}