/* ==========================================================================
   Portfolio Component
   Project cards grid with hover lift and skeleton loaders.
   ========================================================================== */

.portfolio__heading {
  margin-bottom: var(--space-xl);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.portfolio__card {
  --card-brand-color: var(--color-accent);
  background-color: var(--color-surface);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid transparent;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
  transition: transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.portfolio__card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4),
    0 0 20px color-mix(in srgb, var(--card-brand-color) 20%, transparent);
  border-color: var(--card-brand-color);
}

.portfolio__card:hover .portfolio__title {
  color: var(--card-brand-color);
}

.portfolio__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  filter: grayscale(30%);
  transition: filter var(--transition-base);
}

.portfolio__card:hover .portfolio__image {
  filter: grayscale(0);
}

.portfolio__info {
  padding: var(--space-2xl) var(--space-xl) var(--space-xl);
}

.portfolio__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
  transition: color var(--transition-base);
}

.portfolio__desc {
  color: var(--color-muted);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.portfolio__link {
  display: inline-flex;
  margin-top: var(--space-sm);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: var(--font-size-sm);
}

.portfolio__more {
  display: inline-flex;
  margin-top: var(--space-sm);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.portfolio__more:hover {
  color: var(--color-accent-hover);
  text-decoration: none;
}

/* --- Skeleton card sizing --- */
.portfolio__card.skeleton {
  pointer-events: none;
}

.portfolio__card.skeleton .skeleton__image {
  height: 200px;
}

.portfolio__card.skeleton .skeleton__line {
  margin-inline: var(--space-md);
}

/* --- Responsive --- */
@media (min-width: 600px) {
  .portfolio__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .portfolio__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}