/* ==========================================================================
   PORTFOLIO PAGE STYLES
   ========================================================================== */

/* ---- FILTER BAR ---- */
.filter-bar-section {
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
  background: var(--deep-teal);
  border-bottom: 1px solid rgba(217,154,43,0.14);
  padding: 1.4rem 0;
}
.filter-bar {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.filter-btn {
  background: none;
  border: 1px solid rgba(217,154,43,0.3);
  color: var(--ink-muted);
  padding: 9px 20px;
  font-size: 0.76rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  transition: all 0.35s var(--ease-silk);
}
.filter-btn:hover { border-color: var(--turmeric); color: var(--conch-ivory); }
.filter-btn.active { background: var(--turmeric); border-color: var(--turmeric); color: var(--teal-shadow); font-weight: 600; }

/* ---- MASONRY GRID ---- */
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 1.4rem;
}
.masonry-item {
  position: relative;
  overflow: hidden;
  grid-row: span 1;
  cursor: pointer;
}
.masonry-item.span-tall { grid-row: span 2; }
.masonry-item.span-wide { grid-column: span 2; }
.masonry-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s var(--ease-silk);
}
.masonry-item:hover img { transform: scale(1.08); }
.masonry-item figcaption {
  position: absolute; left: 0; bottom: 0; width: 100%;
  padding: 1.4rem;
  background: linear-gradient(0deg, rgba(5,20,19,0.92) 10%, transparent 100%);
  display: flex; flex-direction: column; gap: 4px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s, transform 0.4s;
}
.masonry-item:hover figcaption { opacity: 1; transform: translateY(0); }
.cap-tag { font-size: 0.66rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--turmeric); font-weight: 700; }
.cap-title { font-family: var(--font-display); font-size: 0.95rem; color: var(--conch-ivory); }

.masonry-item.is-hidden { display: none; }

/* ---- FILM STRIP ---- */
.film-strip-section { background: var(--betel); }
.film-strip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}
.film-thumb {
  position: relative;
  display: block;
  aspect-ratio: 4/3;
  overflow: hidden;
  text-decoration: none;
}
.film-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease-silk); }
.film-thumb:hover img { transform: scale(1.06); filter: brightness(0.7); }
.film-play {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(243,234,217,0.15);
  border: 1px solid rgba(243,234,217,0.5);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  color: var(--conch-ivory);
  font-size: 1.1rem;
  transition: background 0.3s;
}
.film-thumb:hover .film-play { background: var(--turmeric); color: var(--teal-shadow); }
.film-thumb-label {
  position: absolute; left: 0; bottom: 0; width: 100%;
  padding: 1.2rem;
  background: linear-gradient(0deg, rgba(5,20,19,0.85), transparent);
  color: var(--conch-ivory);
  font-size: 0.86rem;
  letter-spacing: 0.4px;
}

/* ---- LIGHTBOX ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: rgba(5,20,19,0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease-silk);
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox-figure { max-width: 86vw; max-height: 84vh; text-align: center; }
.lightbox-figure img { max-width: 86vw; max-height: 76vh; object-fit: contain; margin: 0 auto; box-shadow: 0 30px 80px rgba(0,0,0,0.6); }
.lightbox-figure figcaption { color: var(--ink-muted); margin-top: 1.2rem; font-size: 0.92rem; letter-spacing: 0.4px; }
.lightbox-close, .lightbox-nav {
  position: absolute;
  background: none;
  border: 1px solid rgba(243,234,217,0.3);
  color: var(--conch-ivory);
  width: 46px; height: 46px;
  border-radius: 50%;
  font-size: 1.3rem;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.3s, color 0.3s;
}
.lightbox-close:hover, .lightbox-nav:hover { border-color: var(--turmeric); color: var(--turmeric); }
.lightbox-close { top: 28px; right: 28px; }
.lightbox-prev { left: 28px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 28px; top: 50%; transform: translateY(-50%); }

@media (max-width: 992px) {
  .masonry-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .film-strip-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .masonry-item.span-wide { grid-column: span 2; }
  .filter-bar { gap: 0.5rem; }
  .filter-btn { padding: 7px 14px; font-size: 0.7rem; }
}