/* ===================================================================
   TKM — Portfolio Page Styles
   =================================================================== */

.portfolio-grid-section {
  padding: 120px 0;
}
.portfolio-cta-section {
  padding: 120px 0 180px;
}
.portfolio-title-cta {
  font-size: clamp(2.5rem, 8vw, 6rem);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.portfolio-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  text-decoration: none;
  display: block;
}
.portfolio-card.tall {
  aspect-ratio: 3/4;
}
.portfolio-card.wide {
  grid-column: span 2;
  aspect-ratio: 21/9;
}
.portfolio-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 1.2s var(--ease), transform 1.2s var(--ease);
}
.portfolio-card:hover img {
  filter: grayscale(0%);
  transform: scale(1.05);
}
.portfolio-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 40%, var(--overlay-bg));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 50px 40px;
  opacity: 0;
  transition: opacity 0.6s var(--ease);
}
.portfolio-card:hover .portfolio-card-overlay {
  opacity: 1;
}
.portfolio-card-overlay h3 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 300;
  text-transform: none;
  letter-spacing: 0;
  margin: 0 0 8px;
  color: var(--overlay-text);
}
.portfolio-card-overlay p {
  font-size: 0.72rem;
  color: var(--accent);
  font-family: var(--font-sans);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin: 0;
}

@media (max-width: 768px) {
  .portfolio-grid-section {
    padding: 80px 0;
  }
  .portfolio-cta-section {
    padding: 86px 0 100px;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .portfolio-card.wide {
    grid-column: span 1;
  }
  .portfolio-card-overlay {
    opacity: 1;
    padding: 24px 20px;
  }
  .portfolio-card-overlay h3 {
    font-size: 1.4rem;
  }
  .portfolio-card-overlay p {
    font-size: 0.62rem;
    letter-spacing: 0.18em;
  }
}
@media (min-width: 769px) and (max-width: 992px) {
  .portfolio-grid-section {
    padding: 100px 0;
  }
  .portfolio-cta-section {
    padding: 100px 0 130px;
  }
}