/* Advanced Minimalist Grid (Adham Dannaway Architecture) */
.portfolio-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-base);
  position: relative;
  overflow: hidden;
}

/* Dannaway Style is totally clean, no glowing orbs in the background, pure focus on content */

.portfolio-section .container {
  position: relative;
  z-index: var(--z-base);
}

.portfolio-section .section-title {
  text-align: left;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

/* Portfolio Filters - minimalist pill */
.portfolio-filter {
  margin-bottom: var(--spacing-xl);
  display: flex;
  justify-content: flex-start; /* Align left */
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.filter-btn {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.filter-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-secondary);
}

.filter-btn.active {
  background: var(--color-text-primary);
  color: var(--color-bg-base);
  border-color: var(--color-text-primary);
}

/* Portfolio Grid - Two massive columns for desktop */
.portfolio-grid {
  display: grid;
  gap: 4rem 2.5rem; /* huge gap for whitespace breathing */
  grid-template-columns: 1fr;
  width: 100%;
}

@media (min-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Portfolio Card - Borderless Focus */
.portfolio-card {
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: visible;
  display: flex;
  flex-direction: column;
  position: relative;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease;
  cursor: pointer;
}

.portfolio-card[data-hidden="true"] {
  display: none;
}

.portfolio-card.animating {
  opacity: 0;
  transform: scale(0.98);
}

.portfolio-card:hover {
  transform: translateY(0); /* No card transform, we transform the image wrapper */
}

/* Portfolio Image Wrapper - Massive and Soft Rounded */
.portfolio-card__image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1); /* Subtle base shadow */
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.5s ease;
}

.portfolio-card:hover .portfolio-card__image-wrapper {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5); /* Massive diffuse shadow */
}

.portfolio-card__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
  background: var(--color-bg-surface); /* Clean slate */
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-card:hover .portfolio-card__image {
  transform: scale(1.03); /* Subtle internal zoom */
}

/* Overlay / Gradient is removed for cleaner look, only active if wanted */
.portfolio-card__overlay {
  display: none;
}

/* SVGs styling for placeholders */
.portfolio-card__image svg {
  width: 80px;
  height: 80px;
  fill: var(--color-text-secondary);
  opacity: 0.5;
  transition: all var(--transition-normal);
}

.portfolio-card:hover .portfolio-card__image svg {
  fill: var(--color-primary);
  opacity: 1;
  transform: scale(1.1);
}

/* Portfolio Content - Bleeds directly into background */
.portfolio-card__content {
  padding: 0;
  display: flex;
  flex-direction: column;
}

.portfolio-card__title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

/* Minimal description */
.portfolio-card__description {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Minimal Tags */
.portfolio-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: 0; /* Keep it tight */
}

.portfolio-card__tag {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  padding: 0;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
}

.portfolio-card__tag:not(:last-child)::after {
  content: '·';
  margin-left: var(--spacing-xs);
  color: var(--color-text-muted);
}

/* Arrow interaction replacing the traditional link text */
.portfolio-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 1.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: 0.95rem;
  font-family: var(--font-family-mono);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.portfolio-card__link span {
  display: inline-block;
  transition: transform 0.3s ease;
}

.portfolio-card:hover .portfolio-card__link {
  color: var(--color-text-primary);
}

.portfolio-card:hover .portfolio-card__link span {
  transform: translateX(6px);
}

/* El secreto de Accesibilidad: Link Estirado (Stretched Link) */
/* Causa que toda la tarjeta reaccione al clic hacia el html destino */
.portfolio-card__link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  cursor: pointer;
}

/* Intersection Observer Animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.9s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}